CN102808671A - Air intake valve lift-variable system in air intake pressure regulating type - Google Patents
Air intake valve lift-variable system in air intake pressure regulating type Download PDFInfo
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- CN102808671A CN102808671A CN2012103165596A CN201210316559A CN102808671A CN 102808671 A CN102808671 A CN 102808671A CN 2012103165596 A CN2012103165596 A CN 2012103165596A CN 201210316559 A CN201210316559 A CN 201210316559A CN 102808671 A CN102808671 A CN 102808671A
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- intake valve
- pipe
- air intake
- end surface
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Abstract
The invention discloses an air intake valve lift-variable system in an air intake pressure regulating type, belonging to the technical field of internal combustion engines. The system comprises an air intake channel, an air exhaust channel, an air intake valve lower section, an air exhaust valve, an air intake valve upper section, a capacity cavity, a movable body, a perforation pipe, a movable block, an air inlet pipe, a connecting pipe and a spring, wherein the movable body is mounted in the capacity cavity and is contacted with the inner wall face of the capacity cavity in a sealing manner; the perforation pipe perforates the upper wall face and the lower wall face of the movable body; the movable block is mounted in the perforation pipe and is contacted with the inner wall face of the perforation pipe in a sealing manner; the lower end face of the movable block is a plane; the upper end face of the movable block is an inclined face; two ends of the connecting pipe are communicated with the left wall faces of the air intake pipe and the capacity cavity; the right wall face of the movable body is connected with the right wall face of the capacity cavity through the spring; when pressure in the air intake pipe is relatively large, the movable body is moved to right; the air intake valve lift is increased; when the pressure in the air intake pipe is relatively small, the movable body is moved to left; the air intake valve lift is reduced; and the intake valve variable-lift system is characterized by reasonable design and simple structure and is suitable for engine valve lift-variable systems.
Description
Technical field
What the present invention relates to is a kind of engine aspirating system of technical field of internal combustion engines, particularly a kind of suction pressure regulating type intake valve lift variable system.
Background technique
Traditional petrolic valve lift is fixing immutable, and just the cam profile of camshaft has only a kind ofly, and this has just caused 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 is that the cam profile design is that the balance of motor under full operating mode selected; Consequently motor both can not get best high speed efficient; Also can not get best low speed torque, but obtained best balanced performance under the full operating mode.The employing of lift range variable makes motor can both be met the valve lift of demand in high velocity and low velocity zone, thereby improves high engine speeds power and low speed torque.
Retrieval through to the existing technology document is found; Chinese patent 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 that utilizes, and very high to sealing requirements, poorly sealed words cause fluid seepage easily; And because there is certain compressibility in liquid, the speed of response that valve lift changes has certain retardance.
Summary of the invention
The present invention is directed to the deficiency of above-mentioned existing technology, a kind of suction pressure regulating type intake valve lift variable system is provided, the speed of response that valve lift is changed is very fast.
The present invention realizes through following technological scheme; The present invention includes: cylinder, piston, cylinder head, intake duct, air outlet flue, intake valve hypomere, exhaust valve, intake valve epimere, cavity volume, moving body, run through pipe, moving block, suction tude, connecting tube and spring; Piston is installed in the space that cylinder surrounds and with the internal face sealing of cylinder and contacts, and the air outlet of intake duct, the suction port of air outlet flue all are connected with cylinder head, and the lower end surface of intake valve hypomere, the lower end surface of exhaust valve are all in the firing chamber; Moving body is installed in the cavity volume and with the internal face sealing of cavity volume and contacts; Run through two walls up and down that pipe runs through moving body, moving block is installed in to run through in the pipe and with the internal face sealing that runs through pipe and contacts, and the lower end surface of moving block is the plane; The upper-end surface of moving block is the inclined-plane; The intake valve epimere passes the upper wall surface of cavity volume and stretches into and runs through in the pipe, and the lower end surface of intake valve epimere contacts with the sealing of the upper-end surface of moving block, and the intake valve hypomere passes the lower wall surface of cavity volume and stretches into and runs through in the pipe; The upper-end surface of intake valve hypomere contacts with the sealing of the lower end surface of moving block; The air outlet of suction tude is connected with the suction port of intake duct, and the two ends of connecting tube are connected with the left wall of suction tude, cavity volume respectively, and the right wall of moving body is connected with the right wall of cavity volume through spring.
Further, the cross section of cavity volume is a rectangular in the present invention, runs through pipe and is the uniform section pipe.
In the present invention, moving body and moving block can be in cavity volume move left and right, moving block also can in running through pipe, follow the intake valve epimere and the intake valve hypomere moves up and down together.When the suction tude internal pressure is low; Moving body is moved to the left under the elastic reaction of spring, and then moving block also is moved to the left simultaneously, the upper-end surface slide relative of the lower end surface of intake valve epimere and moving block; The intake valve hypomere moves up under the effect of holddown spring, thereby the intake valve lift is diminished.When the suction tude internal pressure is higher; Moving body moves right and pressure spring, and moving block also moves right simultaneously, the upper-end surface slide relative of the lower end surface of intake valve epimere and moving block; The intake valve hypomere moves down under the effect of holddown spring, thereby makes the intake valve lift become big.
Compared with prior art, the present invention has following beneficial effect and is: the present invention is reasonable in design, and is simple in structure, can realize the continuous variable of valve lift, and the speed of response that valve lift is changed is very fast, and does not need special control mechanism.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of A-A section among 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, the intake valve epimere, 9, cavity volume, 10, moving body; 11, run through pipe, 12, moving block, 13, suction tude, 14, connecting tube, 15, spring.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, present embodiment is a prerequisite with technological scheme of the present invention, provided 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, intake valve epimere 8, cavity volume 9, moving body 10, run through pipe 11, moving block 12, suction tude 13, connecting tube 14 and spring 15; Piston 2 is installed in the space that cylinder 1 surrounded and with the internal face sealing of cylinder 1 and contacts, and the suction port of the air outlet of intake duct 4, air outlet flue 5 all is connected with cylinder head, and the lower end surface of the lower end surface of intake valve hypomere 6, exhaust valve 7 is all in the firing chamber; Moving body 10 is installed in the cavity volume 9 and with the internal face sealing of cavity volume 9 and contacts; Run through two walls up and down that pipe 11 runs through moving body 10, moving block 12 is installed in to run through in the pipe 11 and with the internal face sealing that runs through pipe 11 and contacts, and the lower end surface of moving block 12 is the plane; The upper-end surface of moving block 12 is the inclined-plane; Intake valve epimere 8 passes the upper wall surface of cavity volume 9 and stretches into and runs through in the pipe 11, and the lower end surface of intake valve epimere 8 contacts with the upper-end surface sealing of moving block 12, and intake valve hypomere 6 passes the lower wall surface of cavity volume 9 and stretches into and runs through in the pipe 11; The upper-end surface of intake valve hypomere 6 contacts with the lower end surface sealing of moving block 12; The air outlet of suction tude 13 is connected with the suction port of intake duct 4, and the two ends of connecting tube 14 are connected with the left wall of suction tude 13, cavity volume 9 respectively, and the right wall of moving body 10 is connected with the right wall of cavity volume 9 through spring 15; The cross section of cavity volume 9 is a rectangular, and the said pipe 11 that runs through is the uniform section pipe.
In the present invention, moving body 10 and moving block 12 can be cavity volume 9 in move left and right, moving block 12 also can in running through pipe 11, follow intake valve epimere 8 and intake valve hypomere 6 moves up and down together.When suction tude 13 internal pressures are low; Moving body 10 is moved to the left under the elastic reaction of spring 15; Then moving block 12 also is moved to the left simultaneously; The upper-end surface slide relative of the lower end surface of intake valve epimere 8 and moving block 12, intake valve hypomere 6 moves up under the effect of holddown spring, thereby the intake valve lift is diminished.When suction tude 13 internal pressures are higher; Moving body 10 moves right and pressure spring 15; Moving block 12 also moves right simultaneously; The upper-end surface slide relative of the lower end surface of intake valve epimere 8 and 12 moving blocks, intake valve hypomere 6 moves down under the effect of holddown spring, thereby makes the intake valve lift become big.
Claims (2)
1. suction pressure regulating type intake valve lift variable system; Comprise cylinder (1), piston (2), cylinder head (3), intake duct (4), air outlet flue (5), intake valve hypomere (6) and exhaust valve (7); Piston (2) is installed in the space that cylinder (1) surrounded and with the internal face sealing of cylinder (1) and contacts; The suction port of the air outlet of intake duct (4), air outlet flue (5) all is connected with cylinder head; The lower end surface of the lower end surface of intake valve hypomere (6), exhaust valve (7) is all in the firing chamber; It is characterized in that also comprising intake valve epimere (8), cavity volume (9), moving body (10), run through pipe (11), moving block (12), suction tude (13), connecting tube (14) and spring (15); Moving body (10) is installed in the cavity volume (9) and with the internal face sealing of cavity volume (9) and contacts; Run through two walls up and down that pipe (11) runs through moving body (10), moving block (12) is installed in to run through in the pipe (11) and with the internal face sealing that runs through pipe (11) and contacts, and the lower end surface of moving block (12) is the plane; The upper-end surface of moving block (12) is the inclined-plane; Intake valve epimere (8) passes the upper wall surface of cavity volume (9) and stretches into and runs through in the pipe (11), and the lower end surface of intake valve epimere (8) contacts with the upper-end surface sealing of moving block (12), and intake valve hypomere (6) passes the lower wall surface of cavity volume (9) and stretches into and runs through in the pipe (11); The upper-end surface of intake valve hypomere (6) contacts with the lower end surface sealing of moving block (12); The air outlet of suction tude (13) is connected with the suction port of intake duct (4), and the two ends of connecting tube (14) are connected with the left wall of suction tude (13), cavity volume (9) respectively, and the right wall of moving body (10) is connected through the right wall of spring (15) with cavity volume (9).
2. suction pressure regulating type intake valve lift variable system according to claim 1, the cross section that it is characterized in that said cavity volume (9) is a rectangular, the said pipe (11) that runs through is the uniform section pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210316559.6A CN102808671B (en) | 2012-08-30 | 2012-08-30 | Air intake valve lift-variable system in air intake pressure regulating type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210316559.6A CN102808671B (en) | 2012-08-30 | 2012-08-30 | Air intake valve lift-variable system in air intake pressure regulating type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102808671A true CN102808671A (en) | 2012-12-05 |
| CN102808671B CN102808671B (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210316559.6A Expired - Fee Related CN102808671B (en) | 2012-08-30 | 2012-08-30 | Air intake valve lift-variable system in air intake pressure regulating type |
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| CN (1) | CN102808671B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233794A (en) * | 2013-04-07 | 2013-08-07 | 上海交通大学 | Valve adjusting mechanism with groove structure |
| CN103233793A (en) * | 2013-04-07 | 2013-08-07 | 上海交通大学 | Valve control mechanism with stepping motor |
| CN103233791A (en) * | 2013-04-07 | 2013-08-07 | 上海交通大学 | Differential pressure type valve lift control system |
| CN103277164A (en) * | 2013-05-09 | 2013-09-04 | 上海交通大学 | Push-pull valve height variable system |
| CN106050348A (en) * | 2016-07-13 | 2016-10-26 | 孙志国 | Movable type slope dislocation adjusting mechanism |
| CN108252522A (en) * | 2018-04-12 | 2018-07-06 | 张敏 | A kind of injection apparatus |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990014505A1 (en) * | 1989-05-25 | 1990-11-29 | William Bulens | Device for automobile motor timing system with variable valve lifts |
| US5253621A (en) * | 1992-08-14 | 1993-10-19 | Group Lotus Plc | Valve control means |
| JP2000161035A (en) * | 1998-11-26 | 2000-06-13 | Nippon Soken Inc | Variable valve lift control device at the time of starting |
| JP2004116365A (en) * | 2002-09-25 | 2004-04-15 | Toyota Motor Corp | Controller for variable valve system |
| US20070089698A1 (en) * | 2005-10-24 | 2007-04-26 | Eaton Corporation | Lash adjuster and valve system |
| DE102006053703A1 (en) * | 2006-11-15 | 2008-06-05 | Uwe Hammer | Valve i.e. gas exchange valve, mechanism for use in internal combustion engine of motor vehicle, has control shaft with control contour rotated with cam shaft and actuating control valve, which controls oil flow |
| CN101907001A (en) * | 2010-07-23 | 2010-12-08 | 高伟 | Stepless variable valve lift mechanism |
-
2012
- 2012-08-30 CN CN201210316559.6A patent/CN102808671B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990014505A1 (en) * | 1989-05-25 | 1990-11-29 | William Bulens | Device for automobile motor timing system with variable valve lifts |
| US5253621A (en) * | 1992-08-14 | 1993-10-19 | Group Lotus Plc | Valve control means |
| JP2000161035A (en) * | 1998-11-26 | 2000-06-13 | Nippon Soken Inc | Variable valve lift control device at the time of starting |
| JP2004116365A (en) * | 2002-09-25 | 2004-04-15 | Toyota Motor Corp | Controller for variable valve system |
| US20070089698A1 (en) * | 2005-10-24 | 2007-04-26 | Eaton Corporation | Lash adjuster and valve system |
| DE102006053703A1 (en) * | 2006-11-15 | 2008-06-05 | Uwe Hammer | Valve i.e. gas exchange valve, mechanism for use in internal combustion engine of motor vehicle, has control shaft with control contour rotated with cam shaft and actuating control valve, which controls oil flow |
| CN101907001A (en) * | 2010-07-23 | 2010-12-08 | 高伟 | Stepless variable valve lift mechanism |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233794A (en) * | 2013-04-07 | 2013-08-07 | 上海交通大学 | Valve adjusting mechanism with groove structure |
| CN103233793A (en) * | 2013-04-07 | 2013-08-07 | 上海交通大学 | Valve control mechanism with stepping motor |
| CN103233791A (en) * | 2013-04-07 | 2013-08-07 | 上海交通大学 | Differential pressure type valve lift control system |
| CN103277164A (en) * | 2013-05-09 | 2013-09-04 | 上海交通大学 | Push-pull valve height variable system |
| CN106050348A (en) * | 2016-07-13 | 2016-10-26 | 孙志国 | Movable type slope dislocation adjusting mechanism |
| CN108252522A (en) * | 2018-04-12 | 2018-07-06 | 张敏 | A kind of injection apparatus |
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| Publication number | Publication date |
|---|---|
| CN102808671B (en) | 2014-08-06 |
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Granted publication date: 20140806 Termination date: 20170830 |
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| CF01 | Termination of patent right due to non-payment of annual fee |