CN104912612A - Device achieving continuously variable valve lift - Google Patents
Device achieving continuously variable valve lift Download PDFInfo
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- CN104912612A CN104912612A CN201510219644.4A CN201510219644A CN104912612A CN 104912612 A CN104912612 A CN 104912612A CN 201510219644 A CN201510219644 A CN 201510219644A CN 104912612 A CN104912612 A CN 104912612A
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- intake valve
- pipe
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- stage casing
- air inlet
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Abstract
The invention belongs to the technical field of internal combustion engines and relates to a device achieving a continuously variable valve lift. The device comprises a lower intake valve section, a middle intake valve section, an upper intake valve section, a control body, a fixing body, penetrating pipes, an elastic component, a rotating plate, a rotating shaft and a connecting pipe, wherein the middle intake valve section penetrates through the rotating shaft, four cavities are formed in the rotating shaft, the middle intake valve section is provided with four ribs, the four ribs of the middle intake valve section are distributed in the four cavities of the rotating shaft respectively, a rotating block is connected with the wall surface of the top end of the second penetrating pipe through the elastic component, one end of the connecting pipe is communicated with the first penetrating pipe, and the other end of the connecting pipe is communicated with an engine exhaust pipe. According to the device, when pressure in the first penetrating pipe is high, the middle intake valve section rotates clockwise, the valve lift becomes larger, and the engine air inflow becomes larger. The device is reasonable in design, simple in structure and suitable for design of an intake valve lift continuous variable system.
Description
Technical field
The invention belongs to technical field of internal combustion engines, specifically, is a kind ofly can realize the valve lift continuous changeable device of intake valve lift continuous changeable by pneumatic principle.
Background technique
Traditional petrolic valve lift is fixing immutable, and namely the cam profile of camshaft only has one, and this just causes this lift can not make motor all obtain good response in high velocity and low velocity zone.The valve lift of conventional gasoline machine motor and design of cam contour line select the balance of motor under full working scope, consequently motor both can not get best high speed efficiency, also can not get best low speed torque, but best balanced performance under obtaining full working scope.The employing of lift range variable, makes motor can be met the valve lift of demand in high velocity and low velocity zone, thus improves high engine speeds power and low speed torque.
Through finding the retrieval of prior art document, China Patent No. application number 200910190522.1, patent name: a kind of hydraulic valve mechanism of lift range variable, this patented technology provides a kind of device of variable valve lift, can take into account the high and low rotating speed operating mode of motor preferably.But its design needs special control structure, whole system complex structure.
Summary of the invention
In order to overcome the shortcoming of prior art, the invention provides a kind of valve lift continuous changeable device, the continuous variable of intake valve lift can be realized.
The present invention is achieved through the following technical solutions, the present invention includes compressor air inlet machine pipe, gas compressor, engine air inlet tube, cylinder body, cylinder cap, engine exhaust pipe, turbine, turbine exhaust pipe, catalysis bag, exhaust valve, intake valve hypomere, intake valve stage casing, intake valve epimere, control volume, fixed body, first runs through pipe, second runs through pipe, elastic member, rotating block, swivel plate, connecting plate, running shaft, connecting tube, the air inlet/outlet of gas compressor respectively with compressor air inlet machine pipe, engine air inlet tube is connected, the air inlet/outlet of turbine respectively with engine exhaust pipe, turbine exhaust pipe is connected, engine air inlet tube, engine exhaust pipe is all connected with cylinder body, and cylinder cap is arranged on cylinder body, and exhaust valve is arranged on cylinder cap, and catalysis bag is arranged on turbine exhaust pipe, intake valve hypomere, intake valve stage casing is consolidated, and top, intake valve stage casing is with outside thread, and intake valve epimere inner band is fluted and with internal thread on groove, the top in intake valve stage casing is linked together by worm structure and intake valve epimere, intake valve epimere, control volume is arranged in cylinder cap, and fixed body to be arranged in control volume and to be consolidated with the internal face of control volume, and first runs through pipe, second runs through pipe is arranged on fixed body, first cross sectional area running through pipe is less than the cross sectional area that second runs through pipe, rotating block is arranged in second and runs through in pipe, one end and the rotating block of swivel plate are consolidated, the other end of swivel plate stretches into first and runs through in pipe, running shaft is arranged on the axis of control volume, swivel plate, connecting plate, running shaft is consolidated, intake valve stage casing is passed in running shaft, interior of rotating shaft is with four cavitys, intake valve stage casing is with four ribs, four ribs in intake valve stage casing are arranged in four cavitys of running shaft, the top wall that rotating block runs through pipe by elastic member and second is connected, and one end and first of connecting tube is run through pipe and is connected, and the other end of connecting tube is connected with engine exhaust pipe.
Further, elastic member is spring in the present invention, described fixed body, first run through pipe, second run through pipe, rotating block, swivel plate, connecting plate cross section be rectangular.
The invention has the beneficial effects as follows: the present invention is reasonable in design, structure is simple, can realize the continuous variable of valve lift; Less in speed operation intake valve lift, larger in high-speed working condition intake valve lift.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is the cross-sectional view of control volume in the present invention;
Fig. 4 is the structural representation of A-A section in Fig. 3;
Fig. 5 is the structural representation of B-B section in Fig. 3;
Label in accompanying drawing is respectively: 1, compressor air inlet machine pipe, and 2, gas compressor, 3, engine air inlet tube, 4, cylinder body, 5, cylinder cap, 6, engine exhaust pipe, 7, turbine, 8, turbine exhaust pipe, 9, catalysis bag, 10, exhaust valve, 11, intake valve hypomere, 12, intake valve stage casing, 13, intake valve epimere, 14, control volume, 15, fixed body, 16, first runs through pipe, and 17, second runs through pipe, 18, elastic member, 19, rotating block, 20, swivel plate, 21, connecting plate, 22, running shaft, 23, connecting tube.
Embodiment
Elaborate to embodiments of the invention below in conjunction with accompanying drawing, the present embodiment, premised on technical solution of the present invention, give detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
embodiment
Embodiments of the invention as shown in Figure 1, the present invention includes compressor air inlet machine pipe 1, gas compressor 2, engine air inlet tube 3, cylinder body 4, cylinder cap 5, engine exhaust pipe 6, turbine 7, turbine exhaust pipe 8, catalysis bag 9, exhaust valve 10, intake valve hypomere 11, intake valve stage casing 12, intake valve epimere 13, control volume 14, fixed body 15, first runs through pipe 16, second runs through pipe 17, elastic member 18, rotating block 19, swivel plate 20, connecting plate 21, running shaft 22, connecting tube 23, the air inlet/outlet of gas compressor 2 respectively with compressor air inlet machine pipe 1, engine air inlet tube 3 is connected, the air inlet/outlet of turbine 7 respectively with engine exhaust pipe 6, turbine exhaust pipe 8 is connected, engine air inlet tube 3, engine exhaust pipe 6 is all connected with cylinder body 4, and cylinder cap 5 is arranged on cylinder body 4, and exhaust valve 10 is arranged on cylinder cap 5, and catalysis bag 9 is arranged on turbine exhaust pipe 8, intake valve hypomere 11, intake valve stage casing 12 is consolidated, top, intake valve stage casing 12 is with outside thread, intake valve epimere 13 inner band is fluted and with internal thread on groove, the top in intake valve stage casing 12 is linked together by worm structure and intake valve epimere 13, intake valve epimere 13, control volume 14 is arranged in cylinder cap 5, and fixed body 15 to be arranged in control volume 14 and to be consolidated with the internal face of control volume 14, and first runs through pipe 16, second runs through pipe 17 is arranged on fixed body 15, first cross sectional area running through pipe 16 is less than the cross sectional area that second runs through pipe 17, rotating block 19 is arranged in second and runs through in pipe 17, one end and the rotating block 19 of swivel plate 20 are consolidated, the other end of swivel plate 20 stretches into first and runs through in pipe 16, running shaft 22 is arranged on the axis of control volume 14, swivel plate 20, connecting plate 21, running shaft 22 is consolidated, intake valve stage casing 12 is passed in running shaft 22, running shaft 22 inside is with four cavitys, intake valve stage casing 12 is with four ribs, four ribs in intake valve stage casing 12 are arranged in four cavitys of running shaft 22, the top wall that rotating block 19 runs through pipe 17 by elastic member 18 and second is connected, one end and first of connecting tube 23 is run through pipe 16 and is connected, the other end of connecting tube 23 is connected with engine exhaust pipe 6, elastic member 18 is spring, fixed body 15, first runs through pipe 16, second runs through pipe 17, rotating block 19, swivel plate 20, the cross section of connecting plate 21 is rectangular.
In the present invention, running shaft 22 inside is with four cavitys, and intake valve stage casing 12 is with four ribs, and four ribs in intake valve stage casing 12 are arranged in four cavitys of running shaft 22, such intake valve stage casing 12 both can move up and down, and also can rotate together with running shaft 22.When engine exhaust pipe 6 internal pressure is larger, first to run through pipe 16 internal pressure also larger, because first runs through pipe 16, second to run through the cross sectional area of pipe 17 different, rotating block 19, swivel plate 20 turn clockwise together, elongated elastomeric member 18 simultaneously, then running shaft 22 drives intake valve stage casing 12 to turn clockwise, and intake valve lift becomes large, and engine charge quantitative change is large.When engine exhaust pipe 6 internal pressure is less, under the effect of elastic member 18, running shaft 22 drives intake valve stage casing 12 to be rotated counterclockwise, and intake valve lift diminishes.
Claims (2)
1. a valve lift continuous changeable device, comprise compressor air inlet machine pipe (1), gas compressor (2), engine air inlet tube (3), cylinder body (4), cylinder cap (5), engine exhaust pipe (6), turbine (7), turbine exhaust pipe (8), catalysis bag (9), exhaust valve (10), the air inlet/outlet of gas compressor (2) respectively with compressor air inlet machine pipe (1), engine air inlet tube (3) is connected, the air inlet/outlet of turbine (7) respectively with engine exhaust pipe (6), turbine exhaust pipe (8) is connected, engine air inlet tube (3), engine exhaust pipe (6) is all connected with cylinder body (4), cylinder cap (5) is arranged on cylinder body (4), exhaust valve (10) is arranged on cylinder cap (5), catalysis bag (9) is arranged on turbine exhaust pipe (8), it is characterized in that, also comprise intake valve hypomere (11), intake valve stage casing (12), intake valve epimere (13), control volume (14), fixed body (15), first runs through pipe (16), second runs through pipe (17), elastic member (18), rotating block (19), swivel plate (20), connecting plate (21), running shaft (22), connecting tube (23), intake valve hypomere (11), intake valve stage casing (12) is consolidated, intake valve stage casing (12) top is with outside thread, intake valve epimere (13) inner band is fluted and with internal thread on groove, the top in intake valve stage casing (12) is linked together by worm structure and intake valve epimere (13), intake valve epimere (13), control volume (14) is arranged in cylinder cap (5), fixed body (15) to be arranged in control volume (14) and to be consolidated with the internal face of control volume (14), first runs through pipe (16), second runs through pipe (17) is arranged on fixed body (15), first cross sectional area running through pipe (16) is less than the cross sectional area that second runs through pipe (17), rotating block (19) is arranged in second and runs through in pipe (17), one end and the rotating block (19) of swivel plate (20) are consolidated, the other end of swivel plate (20) stretches into first and runs through in pipe (16), running shaft (22) is arranged on the axis of control volume (14), swivel plate (20), connecting plate (21), running shaft (22) is consolidated, intake valve stage casing (12) is passed in running shaft (22), running shaft (22) is inner with four cavitys, intake valve stage casing (12) is with four ribs, four ribs in intake valve stage casing (12) are arranged in four cavitys of running shaft (22), rotating block (19) runs through the top wall of managing (17) by elastic member (18) and second and is connected, one end and first of connecting tube (23) is run through and is managed (16) and be connected, the other end of connecting tube (23) is connected with engine exhaust pipe (6).
2. valve lift continuous changeable device according to claim 1, it is characterized in that, described elastic member (18) is spring, described fixed body (15), first run through pipe (16), second run through pipe (17), rotating block (19), swivel plate (20), connecting plate (21) cross section be rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510219644.4A CN104912612A (en) | 2015-05-03 | 2015-05-03 | Device achieving continuously variable valve lift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510219644.4A CN104912612A (en) | 2015-05-03 | 2015-05-03 | Device achieving continuously variable valve lift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104912612A true CN104912612A (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510219644.4A Pending CN104912612A (en) | 2015-05-03 | 2015-05-03 | Device achieving continuously variable valve lift |
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| Country | Link |
|---|---|
| CN (1) | CN104912612A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929723A (en) * | 2015-06-08 | 2015-09-23 | 上海交通大学 | Three-section type inlet valve mechanism |
-
2015
- 2015-05-03 CN CN201510219644.4A patent/CN104912612A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929723A (en) * | 2015-06-08 | 2015-09-23 | 上海交通大学 | Three-section type inlet valve mechanism |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150916 |
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| WD01 | Invention patent application deemed withdrawn after publication |