CN102953781B - Mechanical moving rod sliding system for adjusting engine valve lift - Google Patents
Mechanical moving rod sliding system for adjusting engine valve lift Download PDFInfo
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- CN102953781B CN102953781B CN201210410247.1A CN201210410247A CN102953781B CN 102953781 B CN102953781 B CN 102953781B CN 201210410247 A CN201210410247 A CN 201210410247A CN 102953781 B CN102953781 B CN 102953781B
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- air inlet
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Abstract
The invention relates to a mechanical moving rod sliding system in the technical field of machine design. The mechanical moving rod sliding system comprises an inlet valve, an exhaust valve, a gas compressor, a turbine, a lever, a lifter, a volume cavity, a moving body, a connecting pipe and a spring, wherein the moving body is mounted in the volume cavity and in hermetical contact with the inner wall surface of the volume cavity, a square hole is formed in the upper wall surface of the volume cavity, the lower end of a moving rod penetrates through the square hole in the upper wall surface of the volume cavity and then is fixedly connected with the upper wall surface of the moving body, and the upper end of the moving rod is in contact with the lever. When the pressure in an inlet pipe of an engine is high, the moving body can drive the moving rod to move right and then the lift of the inlet valve is increased; and when the pressure in the inlet pipe is low, the moving body can drive the moving rod to move left, and the lift of the inlet valve is decreased. The mechanical moving rod sliding system disclosed by the invention has the advantages of reasonable design and simple structure and is suitable for valve lift variable systems of the engines.
Description
Technical field
What the present invention relates to is a kind of engine intake valve lift regulating system of mechanical designing technique, particularly a kind of mechanical movable bar sliding system.
Background technique
Traditional petrolic valve lift is fixing immutable, and namely the cam profile of camshaft only has 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 design of cam contour line is that the balance under full operating mode is selected to motor, consequently motor both can not get best high speed efficiency, also can not get best low speed torque, but obtained best balanced performance under full operating mode.The employing of lift range variable, makes motor can be met the valve lift of demand in high velocity and low velocity zone, thereby improves high engine speeds power and low speed torque.
Through the retrieval of prior art document is found, 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 preferably the high and low rotating speed operating mode of motor.But its design needs special control structure, whole system complex structure.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, a kind of mechanical movable bar sliding system is provided, valve lift can realize continuous variable, and does not need special control mechanism.
The present invention is achieved through the following technical solutions, the present invention includes: cylinder, piston, cylinder head, intake duct, air outlet flue, intake valve, exhaust valve, compressor air inlet machine pipe, gas compressor, engine air inlet tube, turbine exhaust pipe, turbine, engine exhaust pipe, lever, tappet, connecting tube, cavity volume, moving body, movement rod and spring, piston is arranged in the space that cylinder surrounds and with the internal face sealing of cylinder and contacts, the air outlet of intake duct, the suction port of air outlet flue is all connected with cylinder head, the lower end surface of intake valve, in the Jun firing chamber, lower end surface of exhaust valve, the air inlet/outlet of gas compressor respectively with the air outlet of compressor air inlet machine pipe, 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 exhaust pipe is connected, and the suction port of engine exhaust pipe is connected with the air outlet of air outlet flue, the two ends of lever respectively with the upper end of intake valve, the upper end of tappet is connected, the cross section of cavity volume is rectangular, moving body is arranged in cavity volume and with the internal face sealing of cavity volume and contacts, the upper wall surface of cavity volume has a square opening, the lower end of movement rod is consolidated with the upper wall surface of moving body after passing the square opening on cavity volume upper wall surface, the upper end of movement rod contacts with lever, the two ends of connecting tube respectively with the lower wall surface of cavity volume, engine air inlet tube is connected, and the left wall of moving body is connected with the left wall of cavity volume by spring.
In the present invention, moving body and movement rod are consolidated, and moving body can move left and right in cavity volume, and movement rod can followed moving body and moved left and right.At high-speed working condition, engine charge overpressure is higher, and the cavity volume internal pressure in moving body left side is also higher, and moving body drives movement rod to move right and extension spring, and it is large that the lever length ratio of movement rod the right and left becomes, thereby makes intake valve lift become large.In low speed operating mode, engine charge overpressure is lower, and the cavity volume internal pressure in moving body left side is also lower, under the stretching action of spring, moving body drives movement rod to be moved to the left, and the lever length ratio of movement rod the right and left diminishes, thereby intake valve lift is diminished.
Compared with prior art, the present invention has following beneficial effect and is: the present invention is reasonable in design, simple in structure, can realize the continuous variable of valve lift, does not need again 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, 7, exhaust valve, 8, compressor air inlet machine pipe, 9, gas compressor, 10, engine air inlet tube, 11, turbine exhaust pipe, 12, turbine, 13, engine exhaust pipe, 14, lever, 15, tappet, 16, connecting tube, 17, cavity volume, 18, moving body, 19, movement rod, 20, spring.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, the present embodiment be take technical solution of the present invention as prerequisite, 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: cylinder 1, piston 2, cylinder head 3, intake duct 4, air outlet flue 5, intake valve 6, exhaust valve 7, compressor air inlet machine pipe 8, gas compressor 9, engine air inlet tube 10, turbine exhaust pipe 11, turbine 12, engine exhaust pipe 13, lever 14, tappet 15, connecting tube 16, cavity volume 17, moving body 18, movement rod 19 and spring 20, piston 2 is arranged in the space that cylinder 1 surrounds and with the internal face sealing 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, the lower end surface of intake valve 6, in the Jun firing chamber, lower end surface of exhaust valve 7, the air inlet/outlet of gas compressor 9 respectively with the air outlet of compressor air inlet machine pipe 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 13, the suction port of turbine exhaust pipe 11 is connected, and the suction port of engine exhaust pipe 13 is connected with the air outlet of air outlet flue 5, the two ends of lever 14 respectively with the upper end of intake valve 6, the upper end of tappet 15 is connected, the cross section of cavity volume 17 is rectangular, moving body 18 is arranged in cavity volume 17 and with the internal face sealing of cavity volume 17 and contacts, the upper wall surface of cavity volume 17 has a square opening, the lower end of movement rod 19 is consolidated with the upper wall surface of moving body 18 after passing the square opening on cavity volume 17 upper wall surfaces, the upper end of movement rod 19 contacts with lever 14, the two ends of connecting tube 16 respectively with the lower wall surface of cavity volume 17, engine air inlet tube 10 is connected, and the left wall of moving body 18 is connected with the left wall of cavity volume 17 by spring 20.
In the present invention, moving body 18 and movement rod 19 are consolidated, and moving body 18 can move left and right in cavity volume 17, and movement rod 19 can followed moving body 18 and moved left and right.At high-speed working condition, engine air inlet tube 10 internal pressures are higher, and cavity volume 17 internal pressures in moving body 18 left sides are also higher, and moving body 18 drives movement rod 19 to move right and extension spring 20, it is large that the lever length ratio of movement rod 19 the right and lefts becomes, thereby make intake valve lift become large.In low speed operating mode, engine air inlet tube 10 internal pressures are lower, and cavity volume 17 internal pressures in moving body 18 left sides are also lower, under the stretching action of spring 20, moving body 18 drives movement rod 19 to be moved to the left, and the lever length ratio of movement rod 19 the right and lefts diminishes, thereby intake valve lift is diminished.
Claims (1)
1. the mechanical movable bar sliding system regulating for engine intake valve lift, comprises cylinder (1), piston (2), cylinder head (3), intake duct (4), air outlet flue (5), intake valve (6), exhaust valve (7), compressor air inlet machine pipe (8), gas compressor (9), engine air inlet tube (10), turbine exhaust pipe (11), turbine (12), engine exhaust pipe (13), lever (14) and tappet (15), piston (2) is arranged in the space that cylinder (1) surrounds and with the internal face sealing 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, the lower end surface of intake valve (6), in the Jun firing chamber, lower end surface of exhaust valve (7), the air inlet/outlet of gas compressor (9) respectively with the air outlet of compressor air inlet machine pipe (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 (13), the suction port of turbine exhaust pipe (11) is connected, and the suction port of engine exhaust pipe (13) is connected with the air outlet of air outlet flue (5), the two ends of lever (14) respectively with the upper end of intake valve (6), the upper end of tappet (15) is connected, and characterized by further comprising connecting tube (16), cavity volume (17), moving body (18), movement rod (19) and spring (20), the cross section of cavity volume (17) is rectangular, moving body (18) is arranged in cavity volume (17) and with the internal face sealing of cavity volume (17) and contacts, the upper wall surface of cavity volume (17) has a square opening, the lower end of movement rod (19) is consolidated with the upper wall surface of moving body (18) after passing the square opening on cavity volume (17) upper wall surface, the upper end of movement rod (19) contacts with lever (14), the two ends of connecting tube (16) respectively with the lower wall surface of cavity volume (17), engine air inlet tube (10) is connected, and the left wall of moving body (18) is connected with the left wall of cavity volume (17) by spring (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210410247.1A CN102953781B (en) | 2012-10-24 | 2012-10-24 | Mechanical moving rod sliding system for adjusting engine valve lift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210410247.1A CN102953781B (en) | 2012-10-24 | 2012-10-24 | Mechanical moving rod sliding system for adjusting engine valve lift |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102953781A CN102953781A (en) | 2013-03-06 |
| CN102953781B true CN102953781B (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210410247.1A Expired - Fee Related CN102953781B (en) | 2012-10-24 | 2012-10-24 | Mechanical moving rod sliding system for adjusting engine valve lift |
Country Status (1)
| Country | Link |
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| CN (1) | CN102953781B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291405A (en) * | 2013-05-09 | 2013-09-11 | 上海交通大学 | Electrical lever-proportion adjusting mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1395851A (en) * | 1921-02-08 | 1921-11-01 | Mclean Francis Byron | Valve-operating mechanism |
| US4519345A (en) * | 1984-03-05 | 1985-05-28 | Bob Walter | Adjustable ratio rocker arm |
| US4723516A (en) * | 1985-11-25 | 1988-02-09 | Slagley Michael W | Valve open duration and timing controller |
| DE19641068A1 (en) * | 1996-10-04 | 1997-08-28 | Klonder Armin Dipl Ing Fh | Rocker arm for valve control in piston pumps and internal combustion engines |
| CN101429882A (en) * | 2008-12-12 | 2009-05-13 | 奇瑞汽车股份有限公司 | Continuous variable air valve lift apparatus |
| CN101994536A (en) * | 2009-08-13 | 2011-03-30 | 万国引擎知识产权有限责任公司 | Intake valve closing hydraulic adjuster |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11210416A (en) * | 1998-01-29 | 1999-08-03 | Aisin Seiki Co Ltd | Valve driving device |
| US6591797B2 (en) * | 2001-03-23 | 2003-07-15 | William W. Entzminger | Variable fulcrum rocker arm |
| US7322325B1 (en) * | 2006-10-10 | 2008-01-29 | Ideal Engine Incorporated | Apparatus and methods for varying valve lift in an internal combustion engine |
-
2012
- 2012-10-24 CN CN201210410247.1A patent/CN102953781B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1395851A (en) * | 1921-02-08 | 1921-11-01 | Mclean Francis Byron | Valve-operating mechanism |
| US4519345A (en) * | 1984-03-05 | 1985-05-28 | Bob Walter | Adjustable ratio rocker arm |
| US4723516A (en) * | 1985-11-25 | 1988-02-09 | Slagley Michael W | Valve open duration and timing controller |
| DE19641068A1 (en) * | 1996-10-04 | 1997-08-28 | Klonder Armin Dipl Ing Fh | Rocker arm for valve control in piston pumps and internal combustion engines |
| CN101429882A (en) * | 2008-12-12 | 2009-05-13 | 奇瑞汽车股份有限公司 | Continuous variable air valve lift apparatus |
| CN101994536A (en) * | 2009-08-13 | 2011-03-30 | 万国引擎知识产权有限责任公司 | Intake valve closing hydraulic adjuster |
Non-Patent Citations (1)
| Title |
|---|
| JP特開平11-210416A 1999.08.03 * |
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| CN102953781A (en) | 2013-03-06 |
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