CN202039959U - Rapid heat dissipation cylinder head and gasoline engine employing same - Google Patents
Rapid heat dissipation cylinder head and gasoline engine employing same Download PDFInfo
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- CN202039959U CN202039959U CN2011200665543U CN201120066554U CN202039959U CN 202039959 U CN202039959 U CN 202039959U CN 2011200665543 U CN2011200665543 U CN 2011200665543U CN 201120066554 U CN201120066554 U CN 201120066554U CN 202039959 U CN202039959 U CN 202039959U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model discloses a rapid heat dissipation cylinder head and a gasoline engine employing the same. A lengthwise penetrating air cooling channel I is disposed parallel to a plane on a cylinder head body and coplanar to an air inlet channel axis and an air exhaust channel axis; and a crosswise penetrating air cooling channel II is disposed vertical to the plane coplanar to the air inlet channel axis and the air exhaust channel axis. The cylinder head enables cool air to pass through an external surface of a combustor from different directions, allows channel walls to send the heat out through heat conduction and accordingly increases conduction and convention areas and fully reduces a temperature of the combustor, thereby realizing better heat dissipation effect, reducing hydrocarbon in tail gas effectively and improving a gasoline engine power. The gasoline engine with a maximum power (revolving speed being 3060 rpm) of 7.5 KW, for example, has the power being improved to 8.1 KW and emission being reduced to 6.0 g/KW per hour from 8.0 g/KW per hour and achieving and exceeding a EPA 3 phase standard of 8 g/KW per hour.
Description
Technical field
The utility model relates to a kind of power engine parts and application thereof, particularly a kind of gasoline engine part and application thereof.
Background technique
Petrol engine is a kind of dynamic power machine that uses gasoline for the fuel.Partly form by cylinder, connecting rod, gas distribution system, oil supply system, lubrication system and ignition system etc.; Cylinder head is provided with gas-entered passageway and exhaust passage, and forms the firing chamber jointly with cylinder, thereby, belong to the parts of petrol engine outbalance.Gasoline act as a fuel with AIR MIXTURES in the firing chamber internal combustion, produce a large amount of heats, be used for as driving energy.Heat inevitably will be passed to outer surface and take away heat to extraneous by other type of cooling by transmission of heat by cylinder body and cylinder cap, and needs heat radiation very fast, to keep the proper functioning of firing chamber face; Otherwise, can cause the firing chamber temperature of facing the wall and meditating infinitely to raise, finally can influence exhaust emissions, influence the usability of cylinder cap, even the sticking cylinder of piston, pull-cylinder phenomena can occur.
In the prior art, the cooling measure of cylinder head generally adopts at outer surface and is provided with radiating fin, and the heat in the firing chamber conducts to radiating fin by cylinder head, utilizes cross-ventilation to take away heat, reaches the purpose of heat radiation.The radiating fin radiating effect is better and comparatively light, can satisfy the heat radiation requirement.But when the petrol engine long-play, radiating fin transmission of heat and limited to flow area can't fully be dispelled the heat, and can influence the physical property of cylinder head behind the heat accumulation, thus the ride quality of petrol engine, even security incident can appear, cause petrol engine to scrap.
Therefore, need improve, have better radiating effect the quick heat radiating cylinder head, guarantee the physical property of cylinder cap, reduce the cylinder temperature, make the petrol engine can long-time steady operation, reduce the hydrocarbon in the tail gas effectively, can not produce the sticking cylinder of the piston that causes by temperature rise, pull-cylinder phenomena.
The model utility content
In view of this, the utility model provides a kind of quick heat radiating cylinder head and petrol engine thereof, cylinder head has better radiating effect, guarantee the physical property of cylinder cap, reduce the cylinder temperature, make the petrol engine can long-time steady operation, reduce the hydrocarbon in the tail gas effectively, can not produce the sticking cylinder of the piston that causes by temperature rise, pull-cylinder phenomena.
Quick heat radiating cylinder head of the present utility model, comprise cylinder head body and the gas-entered passageway, exhaust passage and the spark plug mounting hole that are arranged at the cylinder head body, this external surface of cylinder head is provided with radiating fin, the inboard firing chamber face that forms of cylinder head body, the homonymy that is positioned at gas-entered passageway and exhaust passage on the described cylinder head body is provided with the air-cooled passage I of vertical perforation, be provided with the air-cooled passage II of lateral direction penetrating between gas-entered passageway and exhaust passage, described air-cooled passage I and air-cooled passage II all avoid the functional hole on the cylinder head body.
Further, described gas-entered passageway axis and exhaust passage axis coplane, described air-cooled passage I is parallel to the coplane of gas-entered passageway axis and exhaust passage axis and is respectively in the both sides of gas-entered passageway axis and exhaust passage axis coplane with spark plug mounting hole, and described air-cooled passage II is perpendicular to gas-entered passageway axis and exhaust passage axis coplane; Utilize the cylinder head original structure can realize the design of above-mentioned air-cooled passage, and the cooling channel is orthogonal, is beneficial to from all directions and accepts passing through of cooling air, do not influence the installation of each parts, save fabricating cost; Simultaneously, the design of the air-cooled passage of this structure helps improving the ability of cylinder head opposing moment of flexure, in conjunction with the enhancing of radiating effect, makes the cylinder head lightweight, improves the Economy of machine integral body.
Further, described radiating fin extends in the air-cooled passage I and is communicated with and forms the heat radiation bridge, and described heat radiation bridge is separated into parallel vertical multi-channel structure with air-cooled passage 1; The heat radiation bridge construction is beneficial to the intensity that guarantees cylinder head after opening air-cooled passage I, and simultaneously, thermal radiation and conduction surface when the heat radiation bridge has increased heat radiation further are beneficial to heat radiation.
Further, be positioned at the air-cooled passage of spark plug that the spark plug mounting hole side is provided with perforation on the described cylinder head body; Cooled off preferably by the air-cooled spark plug that makes, avoided occurring that spark plug reduces the problem in working life in the prior art owing to high temperature.
Further, the radiating fin on the described cylinder head extends to the exhaust passage outer wall; Can effectively reduce delivery temperature, be beneficial to the vent gas treatment parts in the protection vent systems, further reduce discharging, be beneficial to environmental protection.
Further, described firing chamber face is the composite sphere structure, is followed successively by sphere I, smooth surface and sphere II to the top by the bottom, and the radius of described sphere II is greater than the radius of sphere I; Seamlessly transit by smooth surface between sphere I and the sphere II; Because sphere combustion chamber surface to volume ratio minimum improves the petrol engine working efficiency, but, then can reduce composite rate, influence burning and discharging owing to adopt spherical structure to be unfavorable for the abundant mixing of combustion gas; Adopt the composite sphere structure, not only further reduce surface to volume ratio,, thereby be more conducive to burning and reduce discharging, increase petrol engine power also because surface blending is beneficial to the mixing of combustion gas; Simultaneously, the angle between inlet and exhaust valve and the intake and exhaust air flue is littler than other structure firing chamber face, effectively reduces the resistance of intake and exhaust, makes intake and exhaust more smooth and easy, improves petrol engine power effectively, further is beneficial to reduce fuel consumption rate and discharging.
Further, the corresponding intake valve that is provided with gas-entered passageway on the described cylinder head body, the corresponding exhaust valve that is provided with the exhaust passage, described intake valve is oblique to the gas-entered passageway inclination by bottom to top, and exhaust valve is oblique to the exhaust passage inclination by bottom to top; Be adapted to the composite sphere firing chamber, the angle between inlet and exhaust valve and the intake and exhaust air flue is littler than existing structure firing chamber face, is convenient to organize air inlet, improve intake efficiency, be convenient to roll stream and intake swirl, increase flow perturbation in the cylinder, accelerate burning in the air inlet of cylinder inner tissue; Reduce the resistance of intake and exhaust, make intake and exhaust more smooth and easy, be beneficial to and improve petrol engine power, be beneficial to raising power, reduce fuel consume, reduce exhaust emissions, the protection environment.
Simultaneously, because valve is tilting, can make the middle bridge of the nose district of intake and exhaust channel wideer, be beneficial to cooling, increase non-deformability, cooperate with complete unimpeded cooling duct II, improve the cooling effect in bridge of the nose district greatly, reduced cylinder head distortion at high temperature, improved reliability.
Described intake valve and exhaust valve are respectively equipped with rocking arm, the corresponding rocker arm bracket that is provided with rocking arm on the described cylinder head body, described rocking arm is set with pitman arm shaft, described pitman arm shaft is being arranged at rocker arm bracket around the mode single-degree-of-freedom of self rotational, two pitman arm shafts radially inwardly are obliquely installed to the top with respect to cylinder head body attachment face, and the angle of inclination of described pitman arm shaft is corresponding identical with the angle of inclination of intake valve and exhaust valve; It is the lever construction of fulcrum that described rocking arm forms with the pitman arm shaft;
The pitman arm shaft that is obliquely installed can be adapted to the inclined valve structure and be adapted to the geometrical shape of composite sphere firing chamber, be beneficial to and guarantee that rocking arm drives the harmony and the sealing of valve event, fixed rocking arm is in running, the play of its all directions or rolling momentum are little, can effectively reduce the rate of fault of rocking arm, reduce maintenance cost.The reasonable Arrangement rocking arm is come in the position that is adapted to intake and exhaust, also is beneficial to guarantee to guarantee port timing valve timing, thereby improves performance and reduce discharging.
Further, described rocker arm bracket is a hatch frame, and described pitman arm shaft two ends correspondence penetrates the opening both sides of rocker arm bracket and cooperating around the mode of self rotational, the opening internal fixation that described rocking arm is positioned at rocker arm bracket is arranged at pitman arm shaft; The outside side of described rocker arm bracket hatch frame is split type bearing block structure, comprises gland and pedestal, and is detachable fixedly connected between described gland and the pedestal; Adopt split type bearing block structure, be beneficial to the installation of pitman arm shaft, and reduce friction area, increase the flexibility of rocking arm motion, simple and compact for structure, conserve space;
Described intake valve axis and exhaust valve axis be respectively perpendicular to the tangent plane of firing chamber face and its crosspoint, adapts with the intake and exhaust direction of firing chamber, reduces resistance, increases the power character of petrol engine.
Further, described firing chamber face forms bridge of the nose district between intake valve and exhaust valve, and described bridge of the nose district is positioned at the width of firing chamber face greater than 8mm; The seat ring cylindrical of intake valve and the seat ring cylindrical of exhaust valve and firing chamber face bottom margin are tangent; Increase the distance between intake valve and the exhaust valve, suitably increase bridge of the nose district thickness, increase the ability of its opposing heat distortion amount, effectively improve the valve sealing performance, can effectively avoid the valve phenomenon that leaks air; Simultaneously, avoid the instantaneous interference that occurs between the intake and exhaust, guarantee fully burning, improve petrol engine power; The seat ring inner end of described intake valve and the seat ring inner end of exhaust valve and firing chamber face conformal; Reduce interference, reduce resistance, eliminate the dead angle, guarantee the abundant burning of mixed gas, improve petrol engine efficient air inlet and exhaust.
The invention also discloses a kind of petrol engine of using the quick heat radiating cylinder head, described quick heat radiating cylinder head is installed on petrol engine.
The beneficial effects of the utility model: quick heat radiating cylinder head of the present utility model and petrol engine thereof, quick heat radiating cylinder head intake and exhaust direction and the air-cooled passage of hollow is arranged respectively with the intake and exhaust Vertical direction, cooling air can be from different directions through the chamber wall outer surface, simultaneously, conduit wall spreads out of heat by transmission of heat, increased the conduction and to flow area, chamber temperature is fully reduced, thereby make cylinder head have better radiating effect, reduce the cylinder temperature, reducing the hydrocarbon in the tail gas effectively, is example with the petrol engine of peak output (rotating speed 3060rpm) 7.5kW, and power can be brought up to 8.1kW, discharging is reduced to 6.0g/kW.h by 8.0g/kW.h, satisfy and surpass the standard of EPA3 stage 8g/kW.h, this shows, petrol engine power of the present utility model improves and discharging reduces comparatively obvious; And can not produce the sticking cylinder of the piston that causes by temperature rise, pull-cylinder phenomena, make it can long-time steady operation when guaranteeing gasoline engine performance; Owing to be provided with air-cooled passage, can increase the bending resistance square ability of cylinder head itself, add good heat dissipation effect, then effectively guarantee the physical properties such as resistance to deformation of cylinder head, can suitably reduce cylinder head weight, be beneficial to the lightweight that realizes petrol engine.
Cylinder head of the present utility model is used for petrol engine, is used for motorcycle and can quickens flowing of the interior air of air-cooled passage, more helps heat radiation; Be used for common universal machine, be exposed in the air, utilize extraneous forced air convection, be beneficial to heat radiation.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 be Fig. 2 along B-B to view;
Fig. 4 is the air-cooled passage front view of spark plug;
Fig. 5 is the utility model rocking arm mounting structure schematic representation;
Fig. 6 is a pitman arm shaft and the sectional view that cooperates of rocker arm bracket.
Embodiment
Fig. 1 is a structural representation of the present utility model, Fig. 2 is that the A of Fig. 1 is to view, Fig. 3 be Fig. 2 along B-B to view, Fig. 4 is the air-cooled passage front view of spark plug, Fig. 5 is the utility model rocking arm mounting structure schematic representation, Fig. 6 is a pitman arm shaft and the sectional view that cooperates of rocker arm bracket, as shown in the figure: the quick heat radiating cylinder head of present embodiment, comprise cylinder head body 1 and the gas-entered passageway 3 that is arranged at the cylinder head body, exhaust passage 2 and spark plug mounting hole 6, cylinder head body 1 outer surface is provided with radiating fin 4, the cylinder head body 1 inboard firing chamber face 5 that forms, the homonymy that is positioned at gas-entered passageway 3 and exhaust passage 2 on the described cylinder head body 1 is provided with the air-cooled passage I 8 of vertical perforation, between gas-entered passageway 3 and exhaust passage 2, be provided with the air-cooled passage II 7 of lateral direction penetrating, described air-cooled passage I 8 and air-cooled passage II 7 all avoid the functional hole on the cylinder head body, functional hole is meant the hole that is used for assembly, comprises spark-plug hole, inlet valve port, exhaust valve port and bolt hole etc.; Vertically be meant and the roughly the same direction in cylinder head body intake and exhaust orientation; It laterally is direction with cylinder head body intake and exhaust orientation approximate vertical.
In the present embodiment, described gas-entered passageway 3 axis and exhaust passage 2 axis coplanes (just gas-entered passageway 3 axis and exhaust passage 2 axis are positioned at same plane), described air-cooled passage I 8 is parallel to the coplane of gas-entered passageway 3 axis and exhaust passage 2 axis and is respectively in the both sides of gas-entered passageway 3 axis and exhaust passage 2 axis coplanes with spark plug mounting hole 6, and described air-cooled passage II 7 is perpendicular to gas-entered passageway 3 axis and exhaust passage 2 axis coplanes; Utilize the cylinder head original structure can realize the design of above-mentioned air-cooled passage, and the cooling channel is orthogonal, is beneficial to from all directions and accepts passing through of cooling air, do not influence the installation of each parts, save fabricating cost; Simultaneously, the design of the air-cooled passage of this structure helps improving the ability of cylinder head opposing moment of flexure, in conjunction with the enhancing of radiating effect, makes the cylinder head lightweight, improves the Economy of machine integral body.
In the present embodiment, described radiating fin 4 extends in the air-cooled passage I 8 and is communicated with and forms heat radiation bridge 81, and described heat radiation bridge 81 is separated into parallel vertical multi-channel structure with air-cooled passage I 8; Heat radiation bridge 81 structures are beneficial to is opening the intensity that air-cooled passage I 8 backs guarantee cylinder head, and simultaneously, thermal radiation and conduction surface when heat radiation bridge 81 has increased heat radiation further are beneficial to heat radiation.
In the present embodiment, be positioned at the air-cooled passage 9 of spark plug that spark plug mounting hole 6 sides are provided with perforation on the described cylinder head body 1; Be spark plug cooling airflow direction among Fig. 5 shown in the arrow; Cooled off preferably by the air-cooled spark plug that makes, avoided occurring that spark plug reduces the problem in working life in the prior art owing to high temperature.
In the present embodiment, the radiating fin 4 on the described cylinder head extends to exhaust passage 2 outer walls; Can effectively reduce delivery temperature, be beneficial to the vent gas treatment parts in the protection vent systems, further reduce discharging, be beneficial to environmental protection.
Described firing chamber face 5 is the composite sphere structure, is followed successively by sphere I a, smooth surface b and sphere II c to the top by the bottom, and the radius of described sphere II c is greater than the radius of sphere I a; Seamlessly transit by smooth surface b between sphere I a and the sphere II c; Described smooth surface b can be hyperboloid or parabola etc.; Because sphere combustion chamber surface to volume ratio minimum improves the petrol engine working efficiency, but, then can reduce composite rate, influence burning and discharging owing to adopt spherical structure to be unfavorable for the abundant mixing of combustion gas; Adopt the composite sphere structure, not only further reduce surface to volume ratio,, thereby be more conducive to burning and reduce discharging, increase petrol engine power also because surface blending is beneficial to the mixing of combustion gas; Simultaneously, the angle between inlet and exhaust valve and the intake and exhaust air flue is littler than other structure firing chamber face, effectively reduces the resistance of intake and exhaust, makes intake and exhaust more smooth and easy, improves petrol engine power effectively, further is beneficial to reduce fuel consumption rate and discharging.
In the present embodiment, on the described cylinder head body 1 with the gas-entered passageway 3 corresponding intake valves 31 that are provided with, with the exhaust passage 2 corresponding exhaust valves 21 that are provided with, described intake valve 31 is oblique to the gas-entered passageway inclination by bottom to top, and exhaust valve 21 is oblique to the exhaust passage inclination by bottom to top; Be adapted to the composite sphere firing chamber, the angle between inlet and exhaust valve and the intake and exhaust air flue is littler than existing structure firing chamber face, is convenient to organize air inlet, improve intake efficiency, be convenient to roll stream and intake swirl, increase flow perturbation in the cylinder, accelerate burning in the air inlet of cylinder inner tissue; Reduce the resistance of intake and exhaust, make intake and exhaust more smooth and easy, be beneficial to and improve petrol engine power, be beneficial to raising power, reduce fuel consume, reduce exhaust emissions, the protection environment.
Simultaneously, because valve is tilting, can make the middle bridge of the nose district of intake and exhaust channel wideer, be beneficial to cooling, increase non-deformability, cooperate with complete unimpeded cooling duct II, improve the cooling effect in bridge of the nose district greatly, reduced cylinder head distortion at high temperature, improved reliability.
Described intake valve 31 and exhaust valve 21 are respectively equipped with rocking arm, as shown in the figure: the rocking arm 13 of intake valve 31, the rocking arm 11 of exhaust valve 21; The corresponding rocker arm bracket (being rocker arm bracket 15 and rocker arm bracket 12 among the figure) that is provided with rocking arm (rocking arm 13 and rocking arm 11) on the described cylinder head body 1, described rocking arm (rocking arm 13 and rocking arm 11) is set with pitman arm shaft (pitman arm shaft 14 and pitman arm shaft 10) respectively, described pitman arm shaft (pitman arm shaft 14 and pitman arm shaft 10) is being arranged at rocker arm bracket (rocker arm bracket 15 and rocker arm bracket 12) around the mode single-degree-of-freedom correspondence of self rotational, two pitman arm shafts (pitman arm shaft 14 and pitman arm shaft 10) radially inwardly are obliquely installed to the top with respect to cylinder head body attachment face, are meant that radially cylinder head radially; The angle of inclination of described pitman arm shaft (pitman arm shaft 14 and pitman arm shaft 10) is corresponding identical with the angle of inclination of intake valve 31 and exhaust valve 21; It is the lever construction of fulcrum that described rocking arm (rocking arm 13 and rocking arm 11) forms with pitman arm shaft (pitman arm shaft 14 and pitman arm shaft 10), forms tilting fixed rocking arm with pitman arm shaft; The pitman arm shaft that is obliquely installed can be adapted to the inclined valve structure and be adapted to the geometrical shape of composite sphere firing chamber, be beneficial to and guarantee that rocking arm drives the harmony and the sealing of valve event, fixed rocking arm is in running, the play of its all directions or rolling momentum are little, can effectively reduce the rate of fault of rocking arm, reduce maintenance cost.
The reasonable Arrangement rocking arm is come in the position that is adapted to intake and exhaust, also is beneficial to guarantee to guarantee port timing valve timing, thereby improves performance and reduce discharging.
In the present embodiment, described rocker arm bracket (rocker arm bracket 15 and rocker arm bracket 12) is a hatch frame, described pitman arm shaft (pitman arm shaft 14 and pitman arm shaft 10) two ends correspondence penetrates the opening both sides of rocker arm bracket (rocker arm bracket 15 and rocker arm bracket 12) and cooperating around the mode of self rotational, the opening internal fixation that described rocking arm (rocking arm 13 and rocking arm 11) is positioned at rocker arm bracket (rocker arm bracket 15 and rocker arm bracket 12) is arranged at pitman arm shaft (pitman arm shaft 14 and pitman arm shaft 10); The outside side of described rocker arm bracket (rocker arm bracket 15 and rocker arm bracket 12) hatch frame is split type bearing block structure, as shown in Figure 6; the outside side of the hatch frame of rocker arm bracket 15 comprises gland 151a and pedestal 151; detachable fixedly connected between described gland 151a and the pedestal 151; adopt screw to connect among the figure, also can be provided for the bearing shell 101 (the inside side of rocker arm bracket 15 and rocker arm bracket 12 hatch frames also is provided with bearing shell) that reduces to rub; The outside side structure of the outside side of the hatch frame of rocker arm bracket 12 and the hatch frame of rocker arm bracket 15 is identical; Adopt split type bearing block structure, be beneficial to the installation of pitman arm shaft, and reduce friction area, increase the flexibility of rocking arm motion, simple and compact for structure, conserve space;
In the present embodiment, described intake valve 31 axis and exhaust valve 21 axis are respectively perpendicular to the tangent plane of firing chamber face 5 with its crosspoint, be that intake valve 31 axis and exhaust valve 21 axis intersect with firing chamber face 5 respectively, the tangent plane of this intersection point, just the axes intersect of intake valve and exhaust valve is in the center of firing chamber, adapt with the intake and exhaust direction of firing chamber, reduce resistance, increase the power character of petrol engine.
In the present embodiment, described firing chamber face 5 forms bridge of the nose district between intake valve 31 and exhaust valve 21, and described bridge of the nose district is positioned at the width L of firing chamber face greater than 8mm; The seat ring 31a cylindrical of intake valve 31 and the seat ring 21a cylindrical of exhaust valve 21 and firing chamber face 5 bottom margins are tangent; Increase the distance between intake valve 31 and the exhaust valve 21, suitably increase bridge of the nose district thickness, increase the ability of its opposing heat distortion amount, effectively improve the valve sealing performance, can effectively avoid the valve phenomenon that leaks air; Simultaneously, avoid the instantaneous interference that occurs between the intake and exhaust, guarantee fully burning, improve petrol engine power; The seat ring inner end of described intake valve and the seat ring inner end of exhaust valve and firing chamber face conformal; Reduce interference, reduce resistance, eliminate the dead angle, guarantee the abundant burning of mixed gas, improve petrol engine efficient air inlet and exhaust.
The invention also discloses a kind of petrol engine of using the quick heat radiating cylinder head, described quick heat radiating cylinder head is installed on petrol engine, and petrol engine can be applicable to motorcycle or universal machine, and universal machine comprises pump, blower fan, compressor, subtracts variable-speed motor, generator or the like; Have better cooling effect, be the distinguished and admirable direction of crossing among Fig. 3 shown in the arrow.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (10)
1. quick heat radiating cylinder head, comprise cylinder head body and the gas-entered passageway, exhaust passage and the spark plug mounting hole that are arranged at the cylinder head body, this external surface of cylinder head is provided with radiating fin, the inboard firing chamber face that forms of cylinder head body, it is characterized in that: the homonymy that is positioned at gas-entered passageway and exhaust passage on the described cylinder head body is provided with the air-cooled passage I of vertical perforation, be provided with the air-cooled passage II of lateral direction penetrating between gas-entered passageway and exhaust passage, described air-cooled passage I and air-cooled passage II all avoid the functional hole on the cylinder head body.
2. quick heat radiating cylinder head according to claim 1, it is characterized in that: described gas-entered passageway axis and exhaust passage axis coplane, described air-cooled passage I is parallel to the coplane of gas-entered passageway axis and exhaust passage axis and is respectively in the both sides of gas-entered passageway axis and exhaust passage axis coplane with spark plug mounting hole, and described air-cooled passage II is perpendicular to gas-entered passageway axis and exhaust passage axis coplane.
3. quick heat radiating cylinder head according to claim 2 is characterized in that: described radiating fin extends in the air-cooled passage I and is communicated with and forms the heat radiation bridge, and described heat radiation bridge is separated into parallel vertical multi-channel structure with air-cooled passage I.
4. quick heat radiating cylinder head according to claim 3 is characterized in that: be positioned at the air-cooled passage of spark plug that the spark plug mounting hole side is provided with perforation on the described cylinder head body.
5. quick heat radiating cylinder head according to claim 4 is characterized in that: the radiating fin on the described cylinder head extends to the exhaust passage outer wall.
6. according to the described quick heat radiating cylinder head of the arbitrary claim of claim 1 to 5, it is characterized in that: described firing chamber face is the composite sphere structure, be followed successively by sphere I, smooth surface and sphere II to the top by the bottom, the radius of described sphere II is greater than the radius of sphere I; Seamlessly transit by smooth surface between sphere I and the sphere II.
7. quick heat radiating cylinder head according to claim 6, it is characterized in that: the corresponding intake valve that is provided with gas-entered passageway on the described cylinder head body, the corresponding exhaust valve that is provided with the exhaust passage, described intake valve is oblique to the gas-entered passageway inclination by bottom to top, and exhaust valve is oblique to the exhaust passage inclination by bottom to top;
Described intake valve and exhaust valve are respectively equipped with rocking arm, the corresponding rocker arm bracket that is provided with rocking arm on the described cylinder head body, described rocking arm is set with pitman arm shaft, described pitman arm shaft is being arranged at rocker arm bracket around the mode single-degree-of-freedom of self rotational, two pitman arm shafts radially inwardly are obliquely installed to the top with respect to cylinder head body attachment face, and the angle of inclination of described pitman arm shaft is corresponding identical with the angle of inclination of intake valve and exhaust valve; It is the lever construction of fulcrum that described rocking arm forms with the pitman arm shaft.
8. quick heat radiating cylinder head according to claim 7, it is characterized in that: described rocker arm bracket is a hatch frame, described pitman arm shaft two ends correspondence penetrates the opening both sides of rocker arm bracket and cooperating around the mode of self rotational, the opening internal fixation that described rocking arm is positioned at rocker arm bracket is arranged at pitman arm shaft; The outside side of described rocker arm bracket hatch frame is split type bearing block structure, comprises gland and pedestal, and is detachable fixedly connected between described gland and the pedestal;
Described intake valve axis and exhaust valve axis are respectively perpendicular to the tangent plane of firing chamber face and its crosspoint.
9. quick heat radiating cylinder head according to claim 8 is characterized in that: described firing chamber face forms bridge of the nose district between intake valve and exhaust valve, described bridge of the nose district is positioned at the width of firing chamber face greater than 8mm; The seat ring cylindrical of intake valve and the seat ring cylindrical of exhaust valve and firing chamber face bottom margin are tangent; The seat ring inner end of described intake valve and the seat ring inner end of exhaust valve and firing chamber face conformal.
10. an application rights requires the petrol engine of the described quick heat radiating cylinder head of 1 to 8 arbitrary claim, and it is characterized in that: described quick heat radiating cylinder head is installed on petrol engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200665543U CN202039959U (en) | 2011-03-14 | 2011-03-14 | Rapid heat dissipation cylinder head and gasoline engine employing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200665543U CN202039959U (en) | 2011-03-14 | 2011-03-14 | Rapid heat dissipation cylinder head and gasoline engine employing same |
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| Publication Number | Publication Date |
|---|---|
| CN202039959U true CN202039959U (en) | 2011-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200665543U Expired - Lifetime CN202039959U (en) | 2011-03-14 | 2011-03-14 | Rapid heat dissipation cylinder head and gasoline engine employing same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312750A (en) * | 2011-03-14 | 2012-01-11 | 隆鑫通用动力股份有限公司 | Gasoline engine and air-cooled cylinder head thereof |
| CN105673246A (en) * | 2014-12-05 | 2016-06-15 | 本田技研工业株式会社 | Saddle type vehicle internal combustion engine |
-
2011
- 2011-03-14 CN CN2011200665543U patent/CN202039959U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312750A (en) * | 2011-03-14 | 2012-01-11 | 隆鑫通用动力股份有限公司 | Gasoline engine and air-cooled cylinder head thereof |
| WO2012122839A1 (en) * | 2011-03-14 | 2012-09-20 | 隆鑫通用动力股份有限公司 | Air cooled cylinder head of gasoline engine and gasoline engine thereof |
| CN105673246A (en) * | 2014-12-05 | 2016-06-15 | 本田技研工业株式会社 | Saddle type vehicle internal combustion engine |
| CN105673246B (en) * | 2014-12-05 | 2018-06-29 | 本田技研工业株式会社 | Saddle ride type internal combustion engine for vehicle |
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Assignee: Chongqing Loncin Die-Casting Co., Ltd. Assignor: Loncin General Dynamics Co., Ltd. Contract record no.: 2012500000090 Denomination of utility model: Universal gasoline engine quick radiating cylinder end and gasoline engine therewith Granted publication date: 20111116 License type: Exclusive License Record date: 20120920 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
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Granted publication date: 20111116 |
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