CN102953782A - Combined rocker arm type fully variable valve lift mechanism for automobile - Google Patents
Combined rocker arm type fully variable valve lift mechanism for automobile Download PDFInfo
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- CN102953782A CN102953782A CN2012104167387A CN201210416738A CN102953782A CN 102953782 A CN102953782 A CN 102953782A CN 2012104167387 A CN2012104167387 A CN 2012104167387A CN 201210416738 A CN201210416738 A CN 201210416738A CN 102953782 A CN102953782 A CN 102953782A
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- rocking bar
- tappet
- guide rail
- valve lift
- rocking
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Abstract
The invention provides a combined rocker arm type fully variable valve lift mechanism for an automobile, which is used for realizing the best match for engine air input and engine working condition. The mechanism comprises a combined rocker arm, a hydraulic tappet rod unit, a camshaft, a tappet and a valve; the combined rocker arm is in a four-connection-rod structure, the four articulated parts of the four-connection-rod structure are respectively assembled with the hydraulic tappet rod unit in a matching manner, the camshaft, the tappet and the valve; the hydraulic tappet rod unit is fixedly arranged on a fixing mechanism of an engine cylinder cover; and the camshaft, the tappet and the valve are arranged on the engine cylinder cover. By adopting the mechanism provided by the invention, the problem that the pumping damage of conventional engines of which air input is controlled by a throttle is solved, the air input requirement of the engine under different working conditions is met, the combustion efficiency of the engine is improved, and both the power performance and the economic performance of the engine are improved.
Description
Technical field
The present invention relates to the full variable air valve lift range mechanism of a kind of motor car engine, especially a kind of full variable air valve lift range mechanism that makes up rocking arm type belongs to the combustion engine technical field.
Background technique
Along with the progress of society and the development of modern industry, the energy and environment problem becomes the focal issue that people attract attention, and the countries in the world Abgasgesetz is increasingly stringent also, and is also more and more higher to the performance requirement of motor car engine.Conventional gasoline engin adopts the mode of throttle control air inflow, has brought thus the pumping loss problem, and especially when the low engine speed small load condition, because pumping loss is large, combustion efficiency is low, has affected the economic performance of motor.For addressing the above problem, the lift range variable technology is one of effective measures, and it reaches the purpose of operating conditionss couplings different from motor by the regulating and controlling air input of engine by air to the valve opening angle.
Summary of the invention
The object of the invention is to for air input of engine by air and engine operating condition are complementary, a kind of full variable air valve lift range mechanism of motor car engine combination rocking arm type of realizing that cooperates by Engine ECU control, by hydraulic tappet unit and combination rocking arm is provided.
Problem of the present invention realizes with following technical proposals:
The full variable air valve lift range mechanism of a kind of motor car engine combination rocking arm type, it comprises combination rocking arm, hydraulic tappet unit, camshaft, tappet and valve, described combination rocking arm is four-bar linkage structure, its four hinge point are equipped with hydraulic tappet unit, camshaft, tappet and valve respectively, described hydraulic tappet unit is fixed on the cylinder cap fixed mechanism of motor, and described camshaft, tappet and valve are installed in engine cylinder and cover.
The full variable air valve lift range mechanism of above-mentioned motor car engine combination rocking arm type, described combination rocking arm comprises rocker assembly, swift and doffer, described rocker assembly is comprised of the first rocking bar, the second rocking bar, the 3rd rocking bar and the 4th rocking bar, described the first rocking bar front end and the second rocking bar front end are hinged, the first rocking bar and the second rocking bar hinged seat are installed in the upper end of tappet, described the second rocking bar rear end and the 3rd rocking bar front end are hinged, described the 3rd rocking bar rear end and the 4th rocking bar front end are hinged, and described the 4th rocking bar rear end and the first rocking bar rear end are hinged.
The full variable air valve lift range mechanism of above-mentioned motor car engine combination rocking arm type, described swift is installed on the hinged seat of the second rocking bar and the 3rd rocking bar, the outer side wall of swift and camshaft coupling.
The full variable air valve lift range mechanism of above-mentioned motor car engine combination rocking arm type, described doffer is installed on the hinged seat of the 3rd rocking bar and the 4th rocking bar, the outer side wall of doffer and hydraulic tappet units match.
The full variable air valve lift range mechanism of above-mentioned motor car engine combination rocking arm type, described hydraulic tappet unit comprises hydraulic tappet, guide rail connecting base and guide rail, described hydraulic tappet is controlled by Engine ECU, at the front end of hydraulic tappet the guide rail connecting base is set.
The full variable air valve lift range mechanism of above-mentioned motor car engine combination rocking arm type, described guide rail connecting base is sleeved on the guide rail outside, is symmetrical arranged two rollers at guide rail connecting base front end, and described roller and guide rail are equipped.
The full variable air valve lift range mechanism of above-mentioned motor car engine combination rocking arm type, described guide rail is installed in by positioning dowel on the cylinder cap fixed mechanism of motor, and it mates with the outer side wall of doffer.
The present invention is designed to conventional engines distribution device rocking arm on the combination rocking arm of four-bar linkage structure, and the combination rocking arm the second rocking bar and the 3rd rocking bar hinged seat swift is set, cooperate with the swift outer side wall by camshaft overhead cam molded line, drive the action of combination rocking arm, the doffer that is installed on the 3rd rocking bar and the 4th rocking bar hinged seat is slided along guide rail, the first hinged rocking bar rear end of drive and the 4th rocking bar rear end moves up and down, thereby realizes the switching of valve.The present invention is the coupling of realization with engine operating condition, be provided with the hydraulic tappet unit by Engine ECU control, front and back action by hydraulic tappet drives the motion of guide rail connecting base, be symmetrical arranged the guide rail that two rollers drive on the fixed mechanism that is installed in engine cylinder cover by guide rail connecting base front end and rotate around positioning dowel, the movement locus of doffer is changed.When motor is in the low speed small load condition, shortened by Engine ECU control hydraulic tappet, guide rail rotates counterclockwise several angle, and the camber line that causes doffer to be walked is longer, and valve lift reduces, and air input of engine by air reduces; When motor was in the high speed high load working condition, by the elongation of Engine ECU control hydraulic tappet, guide rail clockwise rotated several angle, and the camber line that causes doffer to be walked is shorter, and valve lift increases, and air input of engine by air increases.In a word, the invention solves the conventional engines pumping loss problem by the throttle control air inflow, satisfied the air inflow requirement under the Under Different Work Condition of Engine, improved engine combustion efficiency, improved power performance and the economic performance of motor.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the plan view of hydraulic tappet unit;
Fig. 3 is combination rocker structure schematic diagram;
Fig. 4 is hydraulic tappet maximum opening angle schematic diagram of valve when being in a certain position;
The maximum opening angle schematic diagram of valve when Fig. 5 is the hydraulic tappet shortening;
The maximum opening angle schematic diagram of valve when Fig. 6 is the hydraulic tappet elongation.
Each list of reference numerals is among the figure: 1, camshaft, 2, swift, 3, rocker assembly, 3-1, the first rocking bar, 3-2, the second rocking bar, 3-3, the 3rd rocking bar, 3-4, the 4th rocking bar, 4, tappet, 5, valve, 6, hydraulic tappet, 7, the guide rail connecting base, 7-1, roller, 8, cylinder cap fixed mechanism, 9, guide rail, 10, positioning dowel, 11, doffer, 12, engine inlets.
Embodiment
Referring to Fig. 1, the present invention includes combination rocking arm, hydraulic tappet unit, camshaft 1, tappet 4 and valve 5, described combination rocking arm is four-bar linkage structure, its four hinge point are equipped with hydraulic tappet unit, camshaft 1, tappet 4 and valve 5 respectively, described hydraulic tappet unit is fixed on the cylinder cap fixed mechanism 8 of motor, and described camshaft 1, tappet 4 and valve 5 are installed in engine cylinder and cover.
Referring to Fig. 1, Fig. 2, Fig. 3, the present invention is designed to conventional engines distribution device rocking arm on the combination rocking arm of four-bar linkage structure, and at the second rocking bar and the 3rd rocking bar hinged seat of combination rocking arm rocker assembly 3 swift 2 is set, cooperate with swift 2 outer side walls by camshaft 1 overhead cam molded line, drive the action of combination rocking arm, the doffer 11 that is installed on the 3rd rocking bar and the 4th rocking bar hinged seat is slided along guide rail 9, the first hinged rocking bar 3-1 rear end of drive and the 4th rocking bar 3-4 rear end moves up and down, thereby realizes the switching of valve 5.The present invention is the coupling of realization with engine operating condition, be provided with the hydraulic tappet unit by Engine ECU control, front and back action by hydraulic tappet 6 drives 7 motions of guide rail connecting base, being symmetrical arranged the guide rail 9 of two roller 7-1 drive installation on engine cylinder cover holding mechanism 8 by guide rail connecting base 7 front ends rotates around positioning dowel 10, the movement locus of doffer 11 is changed, realize the change of valve lift, thereby change the air inflow of motor.
Referring to Fig. 5, when motor is in the low speed small load condition, shortened by Engine ECU control hydraulic tappet 6, guide rail 9 rotates counterclockwise several angle, the camber line that causes doffer 11 to be walked is longer, and valve lift reduces, and the air quantity that is entered engine cylinder-body by engine inlets 12 reduces.
Referring to Fig. 6, when motor is in the high speed high load working condition, by 6 elongations of Engine ECU control hydraulic tappet, guide rail 9 clockwise rotates several angle, the camber line that causes doffer 11 to be walked is shorter, and valve lift increases, and the air quantity that is entered engine cylinder-body by engine inlets 12 increases.
Claims (7)
1. a motor car engine makes up the full variable air valve lift range mechanism of rocking arm type, it is characterized in that, it comprises combination rocking arm, hydraulic tappet unit, camshaft (1), tappet (4) and valve (5), described combination rocking arm is four-bar linkage structure, its four hinge point are equipped with hydraulic tappet unit, camshaft (1), tappet (4) and valve (5) respectively, described hydraulic tappet unit is fixed on the cylinder cap fixed mechanism (8) of motor, and described camshaft (1), tappet (4) and valve (5) are installed in engine cylinder and cover.
2. a kind of motor car engine according to claim 1 makes up the full variable air valve lift range mechanism of rocking arm type, it is characterized in that, described combination rocking arm comprises rocker assembly (3), swift (2) and doffer (11), described rocker assembly (3) is by the first rocking bar (3-1), the second rocking bar (3-2), the 3rd rocking bar (3-3) and the 4th rocking bar (3-4) form, described the first rocking bar (3-1) front end and the second rocking bar (3-2) front end are hinged, the first rocking bar and the second rocking bar hinged seat are installed in the upper end of tappet (4), described the second rocking bar (3-2) rear end and the 3rd rocking bar (3-3) front end are hinged, described the 3rd rocking bar (3-3) rear end and the 4th rocking bar (3-4) front end are hinged, and described the 4th rocking bar (3-4) rear end and the first rocking bar (3-1) rear end are hinged.
3. a kind of motor car engine according to claim 2 makes up the full variable air valve lift range mechanism of rocking arm type, it is characterized in that, described swift (2) is installed on the hinged seat of the second rocking bar and the 3rd rocking bar, the outer side wall of swift (2) and camshaft (1) coupling.
4. a kind of motor car engine according to claim 3 makes up the full variable air valve lift range mechanism of rocking arm type, it is characterized in that, described doffer (11) is installed on the hinged seat of the 3rd rocking bar and the 4th rocking bar, the outer side wall of doffer (11) and hydraulic tappet units match.
5. a kind of motor car engine according to claim 4 makes up the full variable air valve lift range mechanism of rocking arm type, it is characterized in that, described hydraulic tappet unit comprises hydraulic tappet (6), guide rail connecting base (7) and guide rail (9), described hydraulic tappet (6) is controlled by Engine ECU, at the front end of hydraulic tappet (6) guide rail connecting base (7) is set.
6. a kind of motor car engine according to claim 5 makes up the full variable air valve lift range mechanism of rocking arm type, it is characterized in that, described guide rail connecting base (7) is sleeved on guide rail (9) outside, be symmetrical arranged two rollers (7-1) at guide rail connecting base (7) front end, described roller (7-1) is equipped with guide rail (9).
7. a kind of motor car engine according to claim 6 makes up the full variable air valve lift range mechanism of rocking arm type, it is characterized in that, described guide rail (9) is installed in by positioning dowel (10) on the cylinder cap fixed mechanism (8) of motor, the outer side wall coupling of it and doffer (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210416738.7A CN102953782B (en) | 2012-10-28 | 2012-10-28 | Combined rocker arm type fully variable valve lift mechanism for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210416738.7A CN102953782B (en) | 2012-10-28 | 2012-10-28 | Combined rocker arm type fully variable valve lift mechanism for automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102953782A true CN102953782A (en) | 2013-03-06 |
| CN102953782B CN102953782B (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210416738.7A Expired - Fee Related CN102953782B (en) | 2012-10-28 | 2012-10-28 | Combined rocker arm type fully variable valve lift mechanism for automobile |
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| CN (1) | CN102953782B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321708A (en) * | 2013-06-06 | 2013-09-25 | 浙江吉利汽车研究院有限公司杭州分公司 | Stepless variable-valve-lift mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1637236A (en) * | 2003-12-26 | 2005-07-13 | 本田技研工业株式会社 | Transfer bar mechanism for internal combustion engine valve system |
| CN1764770A (en) * | 2003-03-24 | 2006-04-26 | 泰森克鲁普汽车股份公司 | Device for the variable actuation of the gas exchange valves of internal combustion engines. |
| EP1696287A1 (en) * | 2005-02-23 | 2006-08-30 | HONDA MOTOR CO., Ltd. | Control apparatus |
| US20090025666A1 (en) * | 2005-05-11 | 2009-01-29 | Toyota Jidosha Kabushiki Kaisha | Variable valve-operating device |
| CN201554511U (en) * | 2009-10-23 | 2010-08-18 | 上海汽车集团股份有限公司 | Mechanical continuous variable valve lift driving device |
| US20120227694A1 (en) * | 2011-03-10 | 2012-09-13 | Jesper Frickmann | Continuously variable valve actuation apparatus for an internal combustion engine |
-
2012
- 2012-10-28 CN CN201210416738.7A patent/CN102953782B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1764770A (en) * | 2003-03-24 | 2006-04-26 | 泰森克鲁普汽车股份公司 | Device for the variable actuation of the gas exchange valves of internal combustion engines. |
| CN1637236A (en) * | 2003-12-26 | 2005-07-13 | 本田技研工业株式会社 | Transfer bar mechanism for internal combustion engine valve system |
| EP1696287A1 (en) * | 2005-02-23 | 2006-08-30 | HONDA MOTOR CO., Ltd. | Control apparatus |
| CN1824925A (en) * | 2005-02-23 | 2006-08-30 | 本田技研工业株式会社 | Control apparatus |
| US20090025666A1 (en) * | 2005-05-11 | 2009-01-29 | Toyota Jidosha Kabushiki Kaisha | Variable valve-operating device |
| CN201554511U (en) * | 2009-10-23 | 2010-08-18 | 上海汽车集团股份有限公司 | Mechanical continuous variable valve lift driving device |
| US20120227694A1 (en) * | 2011-03-10 | 2012-09-13 | Jesper Frickmann | Continuously variable valve actuation apparatus for an internal combustion engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321708A (en) * | 2013-06-06 | 2013-09-25 | 浙江吉利汽车研究院有限公司杭州分公司 | Stepless variable-valve-lift mechanism |
| CN103321708B (en) * | 2013-06-06 | 2016-06-15 | 浙江吉利汽车研究院有限公司杭州分公司 | Stepless variable valve lift mechanism |
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| CN102953782B (en) | 2015-07-01 |
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Granted publication date: 20150701 Termination date: 20211028 |