CN102966403B - Device for adjusting lift of intake valve of supercharged engine - Google Patents
Device for adjusting lift of intake valve of supercharged engine Download PDFInfo
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- CN102966403B CN102966403B CN201210451258.4A CN201210451258A CN102966403B CN 102966403 B CN102966403 B CN 102966403B CN 201210451258 A CN201210451258 A CN 201210451258A CN 102966403 B CN102966403 B CN 102966403B
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- intake valve
- pipe
- end surface
- moving block
- engine
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- Valve Device For Special Equipments (AREA)
Abstract
The invention relates to the technical field of an internal combustion engine, in particular to a device for adjusting a lift of an intake valve of a supercharged engine. The device comprises an intake channel, an exhaust channel, a lower intake valve section, an exhaust valve, an upper intake valve section, a volumetric cavity, a moving body, a penetrating tube, a moving block, a connecting tube and a spring, wherein the moving body is arranged in the volumetric cavity and is contacted with the inner wall surface of the volumetric cavity in a sealing way, the penetrating tube is arranged in a way of penetrating the upper wall surface and the lower wall surface of the moving body, the moving block is arranged in the penetrating tube and is contacted with the inner wall surface of the penetrating tube in a sealing way, a plane is adopted by the lower end face of the moving block, a slope is adopted by the upper end face of the moving block, two ends of the connecting tube are respectively communicated with the left wall surfaces of an intake tube and the volumetric cavity, and the right wall surface of the moving body is connected with the right wall surface of the volumetric cavity through the spring. When the pressure in an exhaust tube of the engine is relatively high, the moving body can move rightwards, and the lift of the intake valve can be increased; and when the pressure in the exhaust tube of the engine is relatively low, the moving body can move leftwards, and the lift of the intake valve can be decreased. The device has the advantages of reasonable design and simple structure and is suitable for a variable valve lift system of the supercharged engine.
Description
Technical field
What the present invention relates to is a kind of engine aspirating system, particularly a kind of supercharged engine intake valve lift controlling device of technical field of internal combustion engines.
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 is the hydraulic mechanism utilized, and very high to sealing requirements, poorly sealed words easily cause fluid seepage; And there is certain compressibility due to liquid, the speed of response of valve lift change has certain retardance.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, provide a kind of supercharged engine intake valve lift controlling device, the speed of response that valve lift can be made to change is very fast.
The present invention is achieved through the following technical solutions, the present invention includes: comprise cylinder, piston, cylinder head, intake duct, air outlet flue, intake valve hypomere, exhaust valve, compressor air inlet machine pipe, gas compressor, engine air inlet tube, engine exhaust pipe, turbine, turbine steam outlet pipe, cavity volume, moving body, run through pipe, moving block, spring, connecting tube and intake valve epimere, piston to be arranged in space that cylinder surrounds and to seal with the internal face of cylinder and contacts, the air outlet of intake duct, the suction port of air outlet flue is all connected with cylinder head, the air inlet/outlet of gas compressor respectively with the air outlet of gas compressor machine suction tude, the suction port of engine air inlet tube is connected, and the air outlet of engine air inlet tube is connected with the suction port of intake duct, the air inlet/outlet of turbine respectively with the air outlet of engine exhaust pipe, the suction port of turbine steam outlet pipe is connected, and the suction port of engine exhaust pipe is connected with the air outlet of air outlet flue, the lower end surface of intake valve hypomere, the lower end surface of exhaust valve is all in firing chamber, moving body to be arranged in cavity volume and to seal with the internal face of cavity volume and contacts, run through two walls up and down that pipe runs through moving body, moving block is arranged on to run through in pipe and seal with the internal face running through pipe and contacts, the lower end surface of moving block is plane, the upper-end surface of moving block is inclined-plane, intake valve epimere through cavity volume upper wall surface and stretch into and run through in pipe, the lower end surface of intake valve epimere seals with the upper-end surface of moving block and contacts, intake valve hypomere through cavity volume lower wall surface and stretch into and run through in pipe, the upper-end surface of intake valve hypomere seals with the lower end surface of moving block and contacts, the right wall of moving body is connected with the right wall of cavity volume by spring, the two ends of connecting tube respectively with engine exhaust pipe, the left wall of cavity volume is connected.
Further, the cross section of cavity volume is rectangular in the present invention, and running through pipe is uniform section pipe.
In the present invention, moving body and moving block can move left and right in cavity volume, and moving block also can followed by intake valve epimere and move up and down together with intake valve hypomere running through in pipe.When engine exhaust overpressure is lower, moving body is moved to the left under the elastic reaction of spring, then moving block is also moved to the left simultaneously, the lower end surface of intake valve epimere and the upper-end surface relative sliding of moving block, intake valve hypomere moves up under the effect of holddown spring, thus intake valve lift is diminished.When engine exhaust overpressure is higher, moving body moves right and Compress Spring, and moving block also moves right simultaneously, the lower end surface of intake valve epimere and the upper-end surface relative sliding of moving block, intake valve hypomere moves down under the effect of holddown spring, thus makes intake valve lift become large.
Compared with prior art, the present invention has following beneficial effect and is: the present invention is reasonable in design, and structure is simple, can realize the continuous variable of valve lift, and the speed of response that valve lift can be made again to change is very fast, and does not need special control mechanism.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of A-A section in Fig. 1;
Wherein: 1, cylinder, 2, piston, 3, cylinder head, 4, intake duct, 5, air outlet flue, 6, intake valve hypomere, 7, exhaust valve, 8, compressor air inlet machine pipe, 9, gas compressor, 10, engine air inlet tube, 11, engine exhaust pipe, 12, turbine, 13, turbine steam outlet pipe, 14, cavity volume, 15, moving body, 16, run through pipe, 17, moving block, 18, spring, 19, connecting tube, 20, intake valve epimere.
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
As depicted in figs. 1 and 2, the present invention includes: comprise cylinder 1, piston 2, cylinder head 3, intake duct 4, air outlet flue 5, intake valve hypomere 6, exhaust valve 7, compressor air inlet machine pipe 8, gas compressor 9, engine air inlet tube 10, engine exhaust pipe 11, turbine 12, turbine steam outlet pipe 13, cavity volume 14, moving body 15, run through pipe 16, moving block 17, spring 18, connecting tube 19 and intake valve epimere 20, piston 2 to be arranged in space that cylinder 1 surrounds and to seal with the internal face of cylinder 1 and contacts, the air outlet of intake duct 4, the suction port of air outlet flue 5 is all connected with cylinder head 3, the air inlet/outlet of gas compressor 9 respectively with the air outlet of gas compressor machine suction tude 8, the suction port of engine air inlet tube 10 is connected, and the air outlet of engine air inlet tube 10 is connected with the suction port of intake duct 4, the air inlet/outlet of turbine 12 respectively with the air outlet of engine exhaust pipe 11, the suction port of turbine steam outlet pipe 13 is connected, and the suction port of engine exhaust pipe 11 is connected with the air outlet of air outlet flue 5, the lower end surface of intake valve hypomere 6, the lower end surface of exhaust valve 7 is all in firing chamber, moving body 15 to be arranged in cavity volume 14 and to seal with the internal face of cavity volume 14 and contacts, run through two walls up and down that pipe 16 runs through moving body 15, moving block 17 is arranged on to run through in pipe 16 and seal with the internal face running through pipe 16 and contacts, the lower end surface of moving block 17 is plane, the upper-end surface of moving block 17 is inclined-plane, intake valve epimere 20 through cavity volume 14 upper wall surface and stretch into and run through in pipe 16, the lower end surface of intake valve epimere 20 seals with the upper-end surface of moving block 17 and contacts, intake valve hypomere 6 through cavity volume 14 lower wall surface and stretch into and run through in pipe 16, the upper-end surface of intake valve hypomere 6 seals with the lower end surface of moving block 17 and contacts, the right wall of moving body 15 is connected with the right wall of cavity volume 14 by spring 18, the two ends of connecting tube 19 respectively with engine exhaust pipe 11, the left wall of cavity volume 14 is connected, and the cross section of cavity volume 14 is rectangular, described in run through pipe 16 for uniform section pipe.
In the present invention, moving body 15 and moving block 17 can move left and right in cavity volume 14, and moving block 17 also can followed by intake valve epimere 20 and move up and down together with intake valve hypomere 6 running through in pipe 16.When engine exhaust pipe 11 internal pressure is lower, moving body 15 is moved to the left under the elastic reaction of spring 18, then moving block 17 is also moved to the left simultaneously, the lower end surface of intake valve epimere 20 and the upper-end surface relative sliding of moving block 17, intake valve hypomere 6 moves up under the effect of holddown spring, thus intake valve lift is diminished.When engine exhaust pipe 11 internal pressure is higher, moving body 15 moves right and Compress Spring 18, moving block 17 also moves right simultaneously, the lower end surface of intake valve epimere 20 and the upper-end surface relative sliding of moving block 17, intake valve hypomere 6 moves down under the effect of holddown spring, thus makes intake valve lift become large.
Claims (1)
1. a supercharged engine intake valve lift controlling device, comprise cylinder (1), piston (2), cylinder head (3), intake duct (4), air outlet flue (5), intake valve hypomere (6), exhaust valve (7), compressor air inlet machine pipe (8), gas compressor (9), engine air inlet tube (10), engine exhaust pipe (11), turbine (12) and turbine steam outlet pipe (13), piston (2) to be arranged in space that cylinder (1) surrounds and to seal with the internal face of cylinder (1) and contacts, the air outlet of intake duct (4), the suction port of air outlet flue (5) is all connected with cylinder head (3), the air inlet/outlet of gas compressor (9) respectively with the air outlet of gas compressor machine suction tude (8), the suction port of engine air inlet tube (10) is connected, the air outlet of engine air inlet tube (10) is connected with the suction port of intake duct (4), the air inlet/outlet of turbine (12) respectively with the air outlet of engine exhaust pipe (11), the suction port of turbine steam outlet pipe (13) is connected, the suction port of engine exhaust pipe (11) is connected with the air outlet of air outlet flue (5), the lower end surface of intake valve hypomere (6), the lower end surface of exhaust valve (7) is all in firing chamber, characterized by further comprising cavity volume (14), moving body (15), run through pipe (16), moving block (17), spring (18), connecting tube (19) and intake valve epimere (20), moving body (15) to be arranged in cavity volume (14) and to seal with the internal face of cavity volume (14) and contacts, run through two walls up and down that pipe (16) runs through moving body (15), moving block (17) be arranged on run through in pipe (16) and with run through the internal face of managing (16) and seal and contact, the lower end surface of moving block (17) is plane, the upper-end surface of moving block (17) is inclined-plane, intake valve epimere (20) through cavity volume (14) upper wall surface and stretch into and run through in pipe (16), the lower end surface of intake valve epimere (20) seals with the upper-end surface of moving block (17) and contacts, intake valve hypomere (6) through cavity volume (14) lower wall surface and stretch into and run through in pipe (16), the upper-end surface of intake valve hypomere (6) seals with the lower end surface of moving block (17) and contacts, the right wall of moving body (15) is connected by the right wall of spring (18) with cavity volume (14), the two ends of connecting tube (19) respectively with engine exhaust pipe (11), the left wall of cavity volume (14) is connected, the cross section of cavity volume (14) is rectangular, described in run through pipe (16) for uniform section pipe, the lift of intake valve can self-control under the effect of spring (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210451258.4A CN102966403B (en) | 2012-11-12 | 2012-11-12 | Device for adjusting lift of intake valve of supercharged engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210451258.4A CN102966403B (en) | 2012-11-12 | 2012-11-12 | Device for adjusting lift of intake valve of supercharged engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102966403A CN102966403A (en) | 2013-03-13 |
| CN102966403B true CN102966403B (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210451258.4A Expired - Fee Related CN102966403B (en) | 2012-11-12 | 2012-11-12 | Device for adjusting lift of intake valve of supercharged engine |
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| CN (1) | CN102966403B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233792A (en) * | 2013-04-07 | 2013-08-07 | 上海交通大学 | Sliding-type valve lift adjusting device |
| CN104712436A (en) * | 2015-01-26 | 2015-06-17 | 上海交通大学 | Sliding type rotary adjustment system |
| CN104747296A (en) * | 2015-01-26 | 2015-07-01 | 上海交通大学 | Sliding type mechanical control mechanism |
| CN104847504A (en) * | 2015-04-11 | 2015-08-19 | 王振华 | Spring and push-and-pull rod collaborative system |
| CN104847440A (en) * | 2015-05-24 | 2015-08-19 | 赵梓涵 | Pipeline communicated type multicomponent linkage system |
| CN104929782A (en) * | 2015-05-24 | 2015-09-23 | 周吉文 | Two-rod fixed-point hinging movable system |
| CN104819026A (en) * | 2015-05-24 | 2015-08-05 | 赵梓涵 | Mechanical type stretching variable rotation device |
| CN104989482A (en) * | 2015-05-24 | 2015-10-21 | 周吉文 | Inverted triangle type up-and-down lifting system |
| CN104929722A (en) * | 2015-05-25 | 2015-09-23 | 李学营 | Mechanical valve stroke regulating system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5463987A (en) * | 1994-07-13 | 1995-11-07 | Cukovich; Mark S. | Variable valve timing mechanism |
| GB2443690A (en) * | 2006-11-09 | 2008-05-14 | Anthony Edgar Blackburn | Retractable cam system for an 8-stroke and 4-stroke cycle change engine |
| CN102678280A (en) * | 2012-05-21 | 2012-09-19 | 上海交通大学 | Gas compressor deflation device with through tube |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20109597U1 (en) * | 2001-06-08 | 2001-09-27 | TRW Deutschland GmbH, 30890 Barsinghausen | Device for actuating a gas exchange valve of an internal combustion engine |
| KR101405612B1 (en) * | 2008-09-09 | 2014-06-10 | 현대자동차주식회사 | Variable valve lift device |
-
2012
- 2012-11-12 CN CN201210451258.4A patent/CN102966403B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5463987A (en) * | 1994-07-13 | 1995-11-07 | Cukovich; Mark S. | Variable valve timing mechanism |
| GB2443690A (en) * | 2006-11-09 | 2008-05-14 | Anthony Edgar Blackburn | Retractable cam system for an 8-stroke and 4-stroke cycle change engine |
| CN102678280A (en) * | 2012-05-21 | 2012-09-19 | 上海交通大学 | Gas compressor deflation device with through tube |
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| CN102966403A (en) | 2013-03-13 |
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Granted publication date: 20141224 Termination date: 20171112 |