CN102966398A - Lever operation angle different pressure type regulation system - Google Patents
Lever operation angle different pressure type regulation system Download PDFInfo
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- CN102966398A CN102966398A CN2012104799584A CN201210479958A CN102966398A CN 102966398 A CN102966398 A CN 102966398A CN 2012104799584 A CN2012104799584 A CN 2012104799584A CN 201210479958 A CN201210479958 A CN 201210479958A CN 102966398 A CN102966398 A CN 102966398A
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Abstract
A lever operation angle different pressure type regulation system in the technical field of mechanical designs comprises an intake valve, an exhaust valve, a compressor, a turbine, a lever, a tappet, a volume cavity, a mover and connecting pipes, the mover is mounted in the volume cavity and is in tight contact with the inner wall of the volume cavity, the top wall of the volume cavity is provided with a round hole, the lower end of a movable rod runs through the round hole on the top wall of the volume cavity and is then fixedly connected with the top wall of the mover, and the upper end of the movable rod is in contact with the lever. When the pressure in an intake pipe of an engine is high, the movable rod is driven by the mover to move downwards, and as a result, the lift of the intake valve is increased; when the pressure in an exhaust pipe of the engine is high, the movable rod is driven by the mover to move upwards, and as a result, the lift of the intake valve is decreased. The lever operation angle different pressure type regulation system is reasonably design, has a simple structure, and is applicable to valve lift-variable systems of 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 the differential regulating system of a kind of lever operation angle.
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 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.
Find through the retrieval to the 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 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, provide a kind of lever operation angle differential regulating system, 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, the compressor air inlet machine pipe, gas compressor, engine air inlet tube, turbine exhaust pipe, turbine, engine exhaust pipe, lever, tappet, the first connecting tube, cavity volume, moving body, movement rod and the second connecting tube, piston is installed 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 all is connected with cylinder head, the lower end surface of intake valve, the lower end surface of exhaust valve is all in the firing chamber, 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, 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, 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 installed in the cavity volume and with the internal face sealing of cavity volume and contacts, the upper wall surface of cavity volume has a circular hole, the upper wall surface that the lower end of movement rod is passed behind the circular hole on the cavity volume upper wall surface with moving body is consolidated, circular-hole internal-wall sealing on movement rod and the cavity volume upper wall surface contacts, the upper end of movement rod contacts with lever, the two ends of the first connecting tube respectively with the upper wall surface of cavity volume, engine air inlet tube is connected, the two ends of the second connecting tube respectively with the lower wall surface of cavity volume, engine exhaust pipe is connected.
In the present invention, moving body and movement rod are consolidated, and moving body can move up and down in cavity volume, and movement rod can followed moving body and moved up and down, and the operation angle of lever can change along with moving up and down of movement rod.When the pressure in the engine air inlet tube during greater than the pressure in the engine exhaust pipe, the pressure in the cavity volume of moving body top is greater than the pressure in the cavity volume of moving body below, and moving body drives movement rod and moves down, thereby makes the intake valve lift become large.When the pressure in the engine air inlet tube during less than the pressure in the engine exhaust pipe, the pressure in the cavity volume of moving body top is less than the pressure in the cavity volume of moving body below, and moving body drives movement rod and moves up, thereby the 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, and is simple in structure, can realize the continuous variable of valve lift, do not need again special control mechanism.
Description of drawings
Fig. 1 is 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, 7, exhaust valve, 8, the 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, the 16, first connecting tube, 17, cavity volume, 18, moving body, 19, movement rod, the 20, second connecting tube.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, present embodiment provided detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment take technical solution of the present invention as prerequisite.
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, the first connecting tube 16, cavity volume 17, moving body 18, movement rod 19 and the second connecting tube 20, piston 2 is installed 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 all is connected with cylinder head, the lower end surface of intake valve 6, the lower end surface of exhaust valve 7 is all in the firing chamber, 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, 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, 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 installed in the 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 circular hole, the upper wall surface that the lower end of movement rod 19 is passed behind the circular hole on cavity volume 17 upper wall surfaces with moving body 18 is consolidated, circular-hole internal-wall sealing on movement rod 19 and cavity volume 19 upper wall surfaces contacts, the upper end of movement rod 19 contacts with lever 14, the two ends of the first connecting tube 16 respectively with the upper wall surface of cavity volume 17, engine air inlet tube 10 is connected, the two ends of the second connecting tube 20 respectively with the lower wall surface of cavity volume 17, engine exhaust pipe 13 is connected.
In the present invention, moving body 18 and movement rod 19 are consolidated, moving body 18 can move up and down in cavity volume 17, and movement rod 19 can followed moving body 18 and moved up and down, and the operation angle of lever 14 can change along with moving up and down of movement rod 19.When the pressure in the engine air inlet tube 10 during greater than the pressure in the engine exhaust pipe 13, pressure in the moving body 18 top cavity volumes is greater than the pressure in the moving body 18 below cavity volumes, moving body 18 drives movement rod 19 and moves down, thereby makes the intake valve lift become large.When the pressure in the engine air inlet tube 10 during less than the pressure in the engine exhaust pipe 13, pressure in the moving body 18 top cavity volumes is less than the pressure in the moving body 18 below cavity volumes, moving body 18 drives movement rod 19 and moves up, thereby the intake valve lift is diminished.
Claims (1)
1. differential regulating system of lever operation angle, comprise 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 installed 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) all is connected with cylinder head, the lower end surface of intake valve (6), the lower end surface of exhaust valve (7) is all in the firing chamber, 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, 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, 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, characterized by further comprising the first connecting tube (16), cavity volume (17), moving body (18), movement rod (19) and the second connecting tube (20), the cross section of cavity volume (17) is rectangular, moving body (18) is installed in the 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 circular hole, the upper wall surface that the lower end of movement rod (19) is passed behind the circular hole on cavity volume (17) upper wall surface with moving body (18) is consolidated, circular-hole internal-wall sealing on movement rod (19) and cavity volume (19) upper wall surface contacts, the upper end of movement rod (19) contacts with lever (14), the two ends of the first connecting tube (16) respectively with the upper wall surface of cavity volume (17), engine air inlet tube (10) is connected, the two ends of the second connecting tube (20) respectively with the lower wall surface of cavity volume (17), engine exhaust pipe (13) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210479958.4A CN102966398B (en) | 2012-11-22 | 2012-11-22 | Lever operation angle different pressure type regulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210479958.4A CN102966398B (en) | 2012-11-22 | 2012-11-22 | Lever operation angle different pressure type regulation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102966398A true CN102966398A (en) | 2013-03-13 |
| CN102966398B CN102966398B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210479958.4A Expired - Fee Related CN102966398B (en) | 2012-11-22 | 2012-11-22 | Lever operation angle different pressure type regulation system |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3808542C2 (en) * | 1987-03-26 | 1994-03-24 | Volkswagen Ag | Valve train for a gas exchange valve of an internal combustion engine |
| US5664531A (en) * | 1994-08-29 | 1997-09-09 | Hyundai Motor Co., Ltd. | Device for adjusting valve duration using external air supply |
| FR2821387A1 (en) * | 2001-02-28 | 2002-08-30 | Inst Francais Du Petrole | Device for introduction of fuel mixture into two-stroke engine combustion chamber comprises valve and element connected to valve delimiting upper and lower chambers, pressurized air supply and fluidic communication between chambers |
| JP2004116365A (en) * | 2002-09-25 | 2004-04-15 | Toyota Motor Corp | Controller for variable valve system |
| KR20060041543A (en) * | 2004-11-09 | 2006-05-12 | 현대자동차주식회사 | Swing arm finger follower of a variable valve lift apparatus |
| WO2008118838A1 (en) * | 2007-03-26 | 2008-10-02 | Illinois Tool Works Inc. | Exhaust check valve and piston return system |
| CN101429882A (en) * | 2008-12-12 | 2009-05-13 | 奇瑞汽车股份有限公司 | Continuous variable air valve lift apparatus |
| DE102008059391A1 (en) * | 2008-06-03 | 2009-12-10 | Schwier, Helmut, Dipl.-Ing. | Valve e.g. inlet valve, arrangement for petrol engine, has annular groove, and valve including closure body with upper side facing valve opening and covered by cap that is slidably and axially guided relative to shaft |
-
2012
- 2012-11-22 CN CN201210479958.4A patent/CN102966398B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3808542C2 (en) * | 1987-03-26 | 1994-03-24 | Volkswagen Ag | Valve train for a gas exchange valve of an internal combustion engine |
| US5664531A (en) * | 1994-08-29 | 1997-09-09 | Hyundai Motor Co., Ltd. | Device for adjusting valve duration using external air supply |
| FR2821387A1 (en) * | 2001-02-28 | 2002-08-30 | Inst Francais Du Petrole | Device for introduction of fuel mixture into two-stroke engine combustion chamber comprises valve and element connected to valve delimiting upper and lower chambers, pressurized air supply and fluidic communication between chambers |
| JP2004116365A (en) * | 2002-09-25 | 2004-04-15 | Toyota Motor Corp | Controller for variable valve system |
| KR20060041543A (en) * | 2004-11-09 | 2006-05-12 | 현대자동차주식회사 | Swing arm finger follower of a variable valve lift apparatus |
| WO2008118838A1 (en) * | 2007-03-26 | 2008-10-02 | Illinois Tool Works Inc. | Exhaust check valve and piston return system |
| DE102008059391A1 (en) * | 2008-06-03 | 2009-12-10 | Schwier, Helmut, Dipl.-Ing. | Valve e.g. inlet valve, arrangement for petrol engine, has annular groove, and valve including closure body with upper side facing valve opening and covered by cap that is slidably and axially guided relative to shaft |
| CN101429882A (en) * | 2008-12-12 | 2009-05-13 | 奇瑞汽车股份有限公司 | Continuous variable air valve lift apparatus |
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| CN102966398B (en) | 2014-12-10 |
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Granted publication date: 20141210 Termination date: 20171122 |