CN105240147A - Engine cylinder cover with valve part cooling, heat loss and sealing performance improving functions - Google Patents
Engine cylinder cover with valve part cooling, heat loss and sealing performance improving functions Download PDFInfo
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- CN105240147A CN105240147A CN201510731727.1A CN201510731727A CN105240147A CN 105240147 A CN105240147 A CN 105240147A CN 201510731727 A CN201510731727 A CN 201510731727A CN 105240147 A CN105240147 A CN 105240147A
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- engine cylinder
- cylinder cover
- cooling
- pipe seat
- valve pipe
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- Gasket Seals (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses an engine cylinder cover with the valve part cooling, heat loss and sealing performance improving functions. The engine cylinder cover comprises a cover body. The cover body is provided with an air inflow channel, an air exhausting channel, a combustion chamber, an inlet valve pipe seat, an exhaust valve pipe seat, water holes allowing water jackets to be communicated with grooves, a ceramic heat insulation ring and sealing rings. When the inlet valve pipe seat and the exhaust valve pipe seat are rubbed and abraded in work, the engine cylinder cover can be repaired in the manner that the inlet valve pipe seat and the exhaust valve pipe seat are replaced, and repair convenience is good; the water jackets and the grooves are communicated through the formed water holes, so that cooling water in the water jackets is directly introduced to the inlet valve pipe seat and the exhaust valve pipe seat for cooling operation, and the cooling effect is good; the ceramic heat insulation ring is arranged so that heat dissipation of fuel gas can be reduced greatly and the heat efficiency of an engine can be improved; and the adopted sealing rings are good in rebounding performance, high in strength and good in sealing effect.
Description
Technical field
The present invention relates to a kind of engine components, particularly a kind of cylinder cap of motor.
Background technique
Cylinder head is one of main parts size of motor, and major function is sealing cylinder top, and forms firing chamber with piston head together with cylinder.Cylinder head is provided with intake valve and exhaust valve, be provided with valve stem in intake valve and exhaust valve, motor in the course of the work, controls the opening and closing of intake valve and exhaust valve by valve stem, realize from intake valve inhale fresh air or combustion gas, discharge the waste gas after burning from exhaust valve.
Because motor there will be high-frequency combination and is separated between valve stem and intake valve, exhaust valve in the course of the work, this makes the intake valve of cylinder and the easy fretting wear of exhaust valve part, cause valve stem can not excellent sealing inlet and outlet door, engine efficiency is caused to reduce, but cylinder head of the prior art is monolithic construction, make the maintenance after the inlet and outlet door section fretting wear of cylinder head comparatively difficult.
And when engine operation, intake valve directly contacts with high-temperature fuel gas with exhaust valve, valve portion temperature height is very fast, temperature is higher, the rising of the intensity temperature in valve portion can reduce, poor to the Cooling Design in the valve portion of cylinder head in prior art, not can solve valve portion Yin Wendu and raise the technical problem causing intensity to reduce.
And existing cylinder, it is generally cast by cast iron materials and forms, and its heat-insulating property is poor, and the cooled water-band of heat energy a big chunk of high-temperature fuel gas is walked, and cause the thermal efficiency of motor lower, thermal waste is more serious.
And leaking to prevent cylinder head end face from occurring, leaking gas, the problem such as leakage of oil, by stamping out the burr of certain altitude around the firing chamber of cylinder head, water hole and oilhole in prior art, utilize the resiliently deformable of burr to realize sealing, but the rebound elasticity of this relief structure is low, to the hardness of body, cylinder cap and machining surface processing request higher, and sealing effect is poor.
Summary of the invention
In view of this, the object of this invention is to provide a kind of engine cylinder cover that can change the cooling of valve portion, heat loss and sealability, and the valve portion solving cylinder head in prior art can not can be raised the technical problem causing intensity to reduce by Yin Wendu by good cooling, valve portion; And the cooled water-band of heat energy a big chunk solving high-temperature fuel gas is walked, and causes the technical problem that the thermal efficiency of motor is lower; Adopt relief structure to seal firing chamber to solve in prior art, there is the technical problem that difficulty of processing is large, sealing effect is poor.
The present invention can change the engine cylinder cover of the cooling of valve portion, heat loss and sealability, comprises lid, described lid is provided with intake duct, air outlet flue and firing chamber;
The oral area of described intake duct is provided with the intake valve base coordinated with valve stem, and described air outlet flue oral area is provided with the exhaust valve base coordinated with valve stem;
Described intake valve base and exhaust valve base include body and are arranged on the annular flange flange of body leading portion, the groove that the oral area of described intake duct and air outlet flue is provided with the recessed seam of the annular coordinated with annular flange flange and coordinates with body, the position that described body is connected with annular flange flange is provided with the groove of weakened annular flange and body thickness;
Described lid is also provided with water jacket and is communicated with the water hole of water jacket and groove;
The end face of described lid is also provided with ceramic insulation ring, and described ceramic insulation ring is positioned at firing chamber edge;
Described lid is also provided with the seal ring of sealed combustion chamber, described seal ring comprises annular reinforcing bar sheet, be arranged on rubber pad on annular reinforcing bar sheet bi-side and the Elastic Steel bluff piece of sealed envelope outside rubber pad.
Further, described body is provided with the first seal ring coordinated with groove walls, the recessed seam of described annular is provided with the second seal ring coordinated with annular flange flange.
Further, described intake valve base and exhaust valve base are straight tube structure.
Beneficial effect of the present invention:
1, the present invention can change the engine cylinder cover of the cooling of valve portion, heat loss and sealability, it is by arranging intake valve base and exhaust valve base at intake duct and air outlet flue oral area, make when intake valve base and exhaust valve base at work fretting wear occur, when causing the gap between all the other valve stems to exceed design load, mode by changing intake valve base and exhaust valve base is keeped in repair engine cylinder cover, and servicing ease is good.
2, the present invention can change the engine cylinder cover of the cooling of valve portion, heat loss and sealability, water jacket is communicated with groove by arranging water hole by it, thus the cooling water in water jacket is directly caused intake valve base and exhaust valve base cools, good cooling results, solves lid valve portion and intake valve base and exhaust valve base Yin Wendu and raises and the problem of intensity reduction.
3, the present invention can change the engine cylinder cover of the cooling of valve portion, heat loss and sealability, it by arranging ceramic insulation ring on the lid end face of firing chamber edge, the area of contact of high-temperature fuel gas and lid is reduced, the heat-shielding performance of ceramic insulation ring is good, thus the heat energy dissipation of minimizing combustion gas that can be very large, improve the thermal efficiency of motor.
4, the present invention can change the engine cylinder cover of the cooling of valve portion, heat loss and sealability, it adopts and around cylinder head upper combustion chamber, arranges seal ring seal combustion gas, the making of sealing configuration is simple, and the seal ring in the present invention utilizes rubber pad to support Elastic Steel bluff piece, make the resilience of seal ring good, sealing effect is good; The intensity of its Elastic Steel bluff piece and annular reinforcing bar sheet is good simultaneously, and make the structural strength of seal ring good, not fragile, and rubber pad is by Elastic Steel bluff piece sealed envelope, and it is not contacted with high-temperature fuel gas, the life-span of seal ring is long; Thus solve existing head combustion chamber sealing there is the technical problem that difficulty of processing is large, sealing effect is poor.
Accompanying drawing explanation
Fig. 1 is the broken section structural representation of engine cylinder cover that the present embodiment can change the cooling of valve portion, heat loss and sealability;
Fig. 2 is the structural representation of exhaust valve base;
Fig. 3 is the zoomed-in view in P portion in Fig. 1.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in the figure, the present embodiment can change the engine cylinder cover of the cooling of valve portion, heat loss and sealability, comprises lid 1, described lid is provided with intake duct 2, air outlet flue 3 and firing chamber 4;
The oral area of described intake duct is provided with the intake valve base 5 coordinated with valve stem, and described air outlet flue oral area is provided with the exhaust valve base 6 coordinated with valve stem;
Described intake valve base and exhaust valve base include body 7 and are arranged on the annular flange flange 8 of body leading portion, the groove that the oral area of described intake duct and air outlet flue is provided with the recessed seam of the annular coordinated with annular flange flange and coordinates with body, the position that described body is connected with annular flange flange is provided with the groove 9 of weakened annular flange and body thickness;
Described lid is also provided with water jacket 10 and is communicated with the water hole 11 of water jacket and groove;
The end face of described lid is also provided with ceramic insulation ring 12, and described ceramic insulation ring is positioned at firing chamber edge;
Described lid is also provided with the seal ring of sealed combustion chamber, described seal ring comprises annular reinforcing bar sheet 13, be arranged on rubber pad 14 on annular reinforcing bar sheet bi-side and the Elastic Steel bluff piece 15 of sealed envelope outside rubber pad.
The present embodiment can change the engine cylinder cover of the cooling of valve portion, heat loss and sealability, it is by arranging intake valve base and exhaust valve base at intake duct and air outlet flue oral area, make when intake valve base and exhaust valve base at work fretting wear occur, when causing the gap between all the other valve stems to exceed design load, mode by changing intake valve base and exhaust valve base is keeped in repair engine cylinder cover, and servicing ease is good.
And the present embodiment can change the engine cylinder cover of the cooling of valve portion, heat loss and sealability, water jacket is communicated with groove by arranging water hole by it, thus the cooling water in water jacket is directly caused intake valve base and exhaust valve base cools, good cooling results, solves lid valve portion and intake valve base and exhaust valve base Yin Wendu and raises and the problem of intensity reduction.
And the present embodiment can change the engine cylinder cover of the cooling of valve portion, heat loss and sealability, it by arranging ceramic insulation ring on the lid end face of firing chamber edge, the area of contact of high-temperature fuel gas and lid is reduced, the heat-shielding performance of ceramic insulation ring is good, thus the heat energy dissipation of minimizing combustion gas that can be very large, improve the thermal efficiency of motor.
And the present embodiment can change the engine cylinder cover of the cooling of valve portion, heat loss and sealability, it adopts and around cylinder head upper combustion chamber, arranges seal ring seal combustion gas, the making of sealing configuration is simple, and the seal ring in the present invention utilizes rubber pad to support Elastic Steel bluff piece, make the resilience of seal ring good, sealing effect is good; The intensity of its Elastic Steel bluff piece and annular reinforcing bar sheet is good simultaneously, and make the structural strength of seal ring good, not fragile, and rubber pad is by Elastic Steel bluff piece sealed envelope, and it is not contacted with high-temperature fuel gas, the life-span of seal ring is long; Thus solve existing head combustion chamber sealing there is the technical problem that difficulty of processing is large, sealing effect is poor.
As the improvement to the present embodiment, described body is provided with the first seal ring 16 coordinated with groove walls, the recessed seam of described annular being provided with the second seal ring 17 coordinated with annular flange flange, cooling water can better being stoped to enter in firing chamber by arranging seal ring.
As the improvement to the present embodiment, described intake valve base and exhaust valve base are straight tube structure, and the resistance of straight tube to air-flow is less, are conducive to the intake and exhaust efficiency improving motor.
What finally illustrate is, above embodiment is only in order to illustrate technological scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technological scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (3)
1. can change an engine cylinder cover for the cooling of valve portion, heat loss and sealability, comprise lid, described lid is provided with intake duct, air outlet flue and firing chamber, it is characterized in that:
The oral area of described intake duct is provided with the intake valve base coordinated with valve stem, and described air outlet flue oral area is provided with the exhaust valve base coordinated with valve stem;
Described intake valve base and exhaust valve base include body and are arranged on the annular flange flange of body leading portion, the groove that the oral area of described intake duct and air outlet flue is provided with the recessed seam of the annular coordinated with annular flange flange and coordinates with body, the position that described body is connected with annular flange flange is provided with the groove of weakened annular flange and body thickness;
Described lid is also provided with water jacket and is communicated with the water hole of water jacket and groove;
The end face of described lid is also provided with ceramic insulation ring, and described ceramic insulation ring is positioned at firing chamber edge;
Described lid is also provided with the seal ring of sealed combustion chamber, described seal ring comprises annular reinforcing bar sheet, be arranged on rubber pad on annular reinforcing bar sheet bi-side and the Elastic Steel bluff piece of sealed envelope outside rubber pad.
2. the engine cylinder cover that can change the cooling of valve portion, heat loss and sealability according to claim 1, it is characterized in that: described body is provided with the first seal ring coordinated with groove walls, the recessed seam of described annular is provided with the second seal ring coordinated with annular flange flange.
3. the engine cylinder cover that can change the cooling of valve portion, heat loss and sealability according to claim 1, is characterized in that: described intake valve base and exhaust valve base are straight tube structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510731727.1A CN105240147A (en) | 2015-11-02 | 2015-11-02 | Engine cylinder cover with valve part cooling, heat loss and sealing performance improving functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510731727.1A CN105240147A (en) | 2015-11-02 | 2015-11-02 | Engine cylinder cover with valve part cooling, heat loss and sealing performance improving functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105240147A true CN105240147A (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510731727.1A Pending CN105240147A (en) | 2015-11-02 | 2015-11-02 | Engine cylinder cover with valve part cooling, heat loss and sealing performance improving functions |
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| CN (1) | CN105240147A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4147149A (en) * | 1976-05-24 | 1979-04-03 | Sulzer Brothers Limited | Exhaust valve for a reciprocating internal combustion engine |
| DE3127122A1 (en) * | 1981-07-03 | 1983-01-20 | Gebrüder Sulzer AG, 8401 Winterthur | "PISTON COMBUSTION ENGINE WITH LIQUID-COOLED VALVE SEAT FOR THE EXHAUST VALVE" |
| EP2518285A1 (en) * | 2009-12-21 | 2012-10-31 | Kawasaki Jukogyo Kabushiki Kaisha | Four-stroke internal combustion engine and exhaust valve |
| CN203051762U (en) * | 2013-02-28 | 2013-07-10 | 宁波市光亚汽车配件有限公司 | Rubber cylinder gasket |
| CN104847521A (en) * | 2015-05-13 | 2015-08-19 | 柳州金盾机械有限公司 | Loader cylinder cover structure |
| CN205243668U (en) * | 2015-11-02 | 2016-05-18 | 重庆金花玻璃钢有限公司 | Can change cooling of valve portion, calorific loss and sealing performance's engine cylinder lid |
-
2015
- 2015-11-02 CN CN201510731727.1A patent/CN105240147A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4147149A (en) * | 1976-05-24 | 1979-04-03 | Sulzer Brothers Limited | Exhaust valve for a reciprocating internal combustion engine |
| DE3127122A1 (en) * | 1981-07-03 | 1983-01-20 | Gebrüder Sulzer AG, 8401 Winterthur | "PISTON COMBUSTION ENGINE WITH LIQUID-COOLED VALVE SEAT FOR THE EXHAUST VALVE" |
| EP2518285A1 (en) * | 2009-12-21 | 2012-10-31 | Kawasaki Jukogyo Kabushiki Kaisha | Four-stroke internal combustion engine and exhaust valve |
| CN203051762U (en) * | 2013-02-28 | 2013-07-10 | 宁波市光亚汽车配件有限公司 | Rubber cylinder gasket |
| CN104847521A (en) * | 2015-05-13 | 2015-08-19 | 柳州金盾机械有限公司 | Loader cylinder cover structure |
| CN205243668U (en) * | 2015-11-02 | 2016-05-18 | 重庆金花玻璃钢有限公司 | Can change cooling of valve portion, calorific loss and sealing performance's engine cylinder lid |
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Application publication date: 20160113 |