CN103470326B - A kind of engine valve actuating mechanism - Google Patents
A kind of engine valve actuating mechanism Download PDFInfo
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- CN103470326B CN103470326B CN201310429903.7A CN201310429903A CN103470326B CN 103470326 B CN103470326 B CN 103470326B CN 201310429903 A CN201310429903 A CN 201310429903A CN 103470326 B CN103470326 B CN 103470326B
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Abstract
The invention provides a kind of engine valve actuating mechanism being applied to technical field of automobile engine, described engine valve actuating mechanism comprises valve (1), hydraulic tappet (2), roller rocker arms (3), camshaft (4), described camshaft (4) contacts with roller rocker arms (3), roller rocker arms (3) two ends contact with hydraulic tappet (2) with valve (1) respectively, camshaft (4) termination is connected with drive motor (5), and the slot (6) on drive motor (5) is connected with engine wiring harness (9).Engine valve actuating mechanism of the present invention, structure is simple, can guarantee that speed of response is rapider, control more accurate, conventional engine timing belt or chain drive mechanism can be saved, also can solve engine cold-start timing entanglement in winter and timing abnormal sound and other timing system problems simultaneously, also be easy to realize Variable Valve Time function.
Description
Technical field
The invention belongs to technical field of automobile engine, more particularly, relate to a kind of engine valve actuating mechanism.
Background technique
Distribution device is one of two great institutions of key on motor, distribution device is the control mechanism of inlet and outlet, according to the job order of cylinder and the requirement of working procedure, periodically opening and closing inlet and outlet door, to cylinder supply inflammable mixture (petrol engine) or fresh air (diesel engine) and in time combustion gas, meet engine charge exhaust demand, by rational intake and exhaust moment design, meet the performance requirement of motor.When inlet and outlet door is closed, ensure cylinder seal.Distribution device movement parts is many, many by other influences factor, the stressing conditions more complicated of each part in movement process, to the precision of each part and requirement of strength higher, the performance level of distribution device to the power performance of motor and NVH and reliability effect very large.The Design of Valve of current routine be all bent axle by timing chain or belt system drive cam shaft, camshaft Direct driver valve or drive valve by roller rocker arms and hydraulic tappet structure, meets intake and exhaust requirement.Along with adding sternly and the reduction of oil consumption of emission standard, increasing motor adopts and directly sprays supercharging technology, to meet the performance requirement of high-performance enginer, obtains lower engine consumption and the emission standard of Geng Gao simultaneously.In view of these requirements, in engine development process, distribution device is by bent axle by timing chain or belt drives camshaft, and valve mechanism is arranged and adopted TYPE II type rocking arm tappet structure.This bent axle is by timing system drive cam shaft thus driving valve meets engine breathing demand.But the power because of the frictional work consumption of engine between each friction pair of distribution device causes engine performance loss.
Summary of the invention
Technical problem to be solved by this invention is: for deficiency of the prior art, break traditions design concept, utilize brand-new scheme, there is provided a kind of structure simple, guarantee that speed of response is rapider, control more accurate, engine cold-start timing entanglement in winter and timing abnormal sound and other timing system problems can be solved, be easy to the engine valve actuating mechanism engine valve actuating mechanism realizing Variable Valve Time function simultaneously.
Solve above-described technical problem, the technological scheme that the present invention takes is:
The present invention is a kind of engine valve actuating mechanism, comprise valve, hydraulic tappet, roller rocker arms, camshaft, described camshaft contacts with roller rocker arms, and roller rocker arms two ends contact with hydraulic tappet with valve respectively, camshaft termination is connected with drive motor, and the slot on drive motor is connected with engine wiring harness.
Preferably, described drive motor is fixedly mounted on engine cylinder and covers, and the rotor of drive motor is fixedly connected with camshaft front end by bolt, installs phase regulator between drive motor and camshaft, and the cam on described camshaft contacts with roller rocker arms
Preferably, described engine wiring harness is connected with Engine ECU, Engine ECU is connected with the stitch in slot by engine wiring harness, the control module of drive motor is set in Engine ECU, the structure of the electric current that the signal input that the control program in described control module is placed through camshaft phase sensor and crankshaft rotational speed sensor calculates needed for drive motor and control signal, described drive motor is placed through Engine ECU realizes drive motor rotation speed change and structure from valve opening time control to the control signal that engine wiring harness and stitch provide.
Preferably, the valve of described engine valve actuating mechanism, hydraulic tappet, roller rocker arms all arrange multiple, and each valve, hydraulic tappet, roller rocker arms and camshaft form an assembly pneumatic module.
Preferably, described drive motor is connected with car load power supply, drive motor inside is provided with the transmission components changing drive motor rotating speed, transmission components arranges current controller, and transmission components is placed through the size of current of current controller input and engine speed realizes the structure of different rotating speeds.
Adopt technological scheme of the present invention, following beneficial effect can be obtained:
Engine valve actuating mechanism of the present invention, adopts motor drive cam shaft, reduces the frictional loss that brings because of distribution device frictional work to the loss of engine power, improves engine performance, reduce oil consumption.Electronic driving mechanism saves timing system parts thereof, some the NVH problems avoiding correct-timing drive system to bring.Motor drive cam shaft, timing gear transmission need not be passed through in the front end of motor as traditional timing mechanism, and motor head structure is simple, front end smaller volume, the design of timing cover can be simpler, and the general arrangement of complete machine can more succinctly facilitate, and reduces motor cost simultaneously.Motor drives the cover cap sealing problem avoiding bringing because timing chain system needs oil lubricating, avoids the dust-proof of Timing Belt system belt and problem of aging, and winter, the quality problems such as tooth jumped by cold area belt.The inefficacy avoiding camshaft front end to be connected with timing or inordinate wear problem.Electric driving mechanism amount of parts reduces, and engine assembly process is also more simple and convenient, improves engine production efficiency, saves production line manufacture cost.
Accompanying drawing explanation
Brief description is made to the content expressed by each accompanying drawing of this specification and the mark in figure below:
Fig. 1 is the structural representation of engine valve actuating mechanism of the present invention;
Accompanying drawing acceptance of the bid note is respectively: 1, valve; 2, hydraulic tappet; 3, roller rocker arms; 4, camshaft; 5, drive motor; 6, slot; 7, bolt; 8, cam; 9, engine wiring harness; 10, gear; 11, current controller.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the effect and working principle etc. of the specific embodiment of the present invention as the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part are described in further detail:
As shown in Figure 1, the present invention is a kind of engine valve actuating mechanism, comprise valve 1, hydraulic tappet 2, roller rocker arms 3, camshaft 4, described camshaft 4 contacts with roller rocker arms 3, roller rocker arms 3 two ends contact with hydraulic tappet 2 with valve 1 respectively, and camshaft 4 termination is connected with drive motor 5, and the slot 6 on drive motor 5 is connected with engine wiring harness 9.
Preferably, described drive motor 5 is fixedly mounted on engine cylinder and covers, the rotor of drive motor 5 is fixedly connected with camshaft 4 front end by bolt 7, installs phase regulator between drive motor 5 and camshaft 4, and the cam 8 on described camshaft 4 contacts with roller rocker arms 3
Preferably, engine wiring harness 9 is connected with Engine ECU, the control module of drive motor 5 is set in Engine ECU, the structure of the electric current that the signal input that the control program in described control module is placed through camshaft phase sensor and crankshaft rotational speed sensor calculates needed for drive motor 5 and control signal, described drive motor 5 is placed through Engine ECU realizes drive motor 5 rotation speed change and structure from the control of valve 1 start-up time to the control signal that engine wiring harness and stitch provide.Preferably, the valve 1 of described engine valve actuating mechanism, hydraulic tappet 2, roller rocker arms 3 all arrange multiple, and each valve 1, hydraulic tappet 2, roller rocker arms 3 form an assembly pneumatic module with camshaft 4.
Preferably, drive motor 5 is connected with car load power supply, drive motor 5 inside is provided with the transmission components 10 changing drive motor rotating speed, transmission components 10 is arranged current controller 11, transmission components 10 is placed through size of current that current controller 11 inputs and engine speed realizes the structure of different rotating speeds.
The present invention is a kind of engine valve actuating mechanism, and the rotor of drive motor 5 is connected with camshaft 4 front end by bolt 7, transmitting torque, and other valve mechanism component such as camshaft 4 and valve 1 need according to design the layout still taking to meet designing requirement.In engine assembly process, traditional timing method is still continued to use in timing position.During engine operation, the signal input of camshaft 4 and crankshaft signal wheel, ECU calculates time of ignition and rotating speed, by being inserted in engine wiring harness in the slot 6 of drive motor 59 to motor signal, stitch definition in slot 6 controls to need to define different parameters according to valve mechanism, according to the ignition order of motor, drive motor 5 realizes the change of rotating speed and the control of valve opening time by the signal of Engine ECU.Drive motor 5 has variable speed drive function, inside has transmission components 10, and transmission components 10 can guarantee that transmission components exports different rotating speeds as required.
Drive motor 5 Direct driver valve mechanism, response can be more rapid, and controlling can be more accurate.Motor drives can adapt to various ambient temperature, also can solve the problem of engine cold-start difficulty in winter.If the motor mating this mechanism need increase VVT (Variable Valve Time) technology, phase regulator can be increased between drive motor and camshaft, just be easy to the function realizing Variable Valve Time.
In actual applications, the power supply of drive motor 5 from car load power supply, by current controller 11 control inputs to the size of current in motor, engine wiring harness connect and arrangement simple and convenient, do not need additional aids, only need drive motor.Drive motor has general adaptability, motor can be developed as standard piece.Cover conventional engine speed range, easy to install and use, maintenance cost is low.
Engine valve actuating mechanism of the present invention, adopts motor drive cam shaft, reduces the frictional loss that brings because of distribution device frictional work to the loss of engine power, improves engine performance, reduce oil consumption.Electronic driving mechanism saves timing system parts thereof, some the NVH problems avoiding correct-timing drive system to bring.Motor drive cam shaft, timing gear transmission need not be passed through in the front end of motor as traditional timing mechanism, and motor head structure is simple, front end smaller volume, the design of timing cover can be simpler, and the general arrangement of complete machine can more succinctly facilitate, and reduces motor cost simultaneously.Motor drives the cover cap sealing problem avoiding bringing because timing chain system needs oil lubricating, avoids the dust-proof of Timing Belt system belt and problem of aging, and winter, the quality problems such as tooth jumped by cold area belt.The inefficacy avoiding camshaft front end to be connected with timing or inordinate wear problem.Electric driving mechanism amount of parts reduces, and engine assembly process is also more simple and convenient, improves engine production efficiency, saves production line manufacture cost.
Above by reference to the accompanying drawings to invention has been exemplary description; the concrete realization of obvious the present invention is not subject to the restrictions described above; as long as have employed the various improvement that method of the present invention is conceived and technological scheme is carried out; or design of the present invention and technological scheme directly applied to other occasions, all in protection scope of the present invention without to improve.
Claims (3)
1. an engine valve actuating mechanism, comprise valve (1), hydraulic tappet (2), roller rocker arms (3), camshaft (4), described camshaft (4) contacts with roller rocker arms (3), roller rocker arms (3) two ends contact with hydraulic tappet (2) with valve (1) respectively, camshaft (4) termination is connected with drive motor (5), and the slot (6) on drive motor (5) is connected with engine wiring harness (9);
It is characterized in that: described drive motor (5) is fixedly mounted on engine cylinder and covers, the rotor of drive motor (5) is fixedly connected with camshaft (4) front end by bolt (7), install phase regulator between described drive motor (5) and camshaft (4), the cam (8) on described camshaft (4) contacts with roller rocker arms (3);
Described engine wiring harness (9) is connected with Engine ECU, Engine ECU is connected with the stitch in slot (6) by engine wiring harness (9), the control module of drive motor (5) is set in Engine ECU, the structure of the electric current that the signal input that the control program in described control module is placed through camshaft phase sensor and crankshaft rotational speed sensor calculates needed for drive motor (5) and control signal, described drive motor (5) is placed through Engine ECU realizes drive motor (5) rotation speed change and structure from the control of valve (1) start-up time to the control signal that engine wiring harness and stitch provide.
2. engine valve actuating mechanism according to claim 1, it is characterized in that: the valve (1) of described engine valve actuating mechanism, hydraulic tappet (2), roller rocker arms (3) all arrange multiple, each valve (1), hydraulic tappet (2), roller rocker arms (3) and camshaft (4) form an assembly pneumatic module.
3. engine valve actuating mechanism according to claim 1, it is characterized in that: described drive motor (5) is connected with car load power supply, drive motor (5) inside is provided with the transmission components (10) changing drive motor rotating speed, transmission components (10) is arranged current controller (11), transmission components (10) is placed through current controller (11) and is input to the structure that size of current in transmission components (10) and engine speed realize different rotating speeds.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310429903.7A CN103470326B (en) | 2013-09-18 | 2013-09-18 | A kind of engine valve actuating mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310429903.7A CN103470326B (en) | 2013-09-18 | 2013-09-18 | A kind of engine valve actuating mechanism |
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| CN103470326A CN103470326A (en) | 2013-12-25 |
| CN103470326B true CN103470326B (en) | 2015-10-28 |
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| CN108386247A (en) * | 2018-04-03 | 2018-08-10 | 南京世界村汽车动力有限公司 | A kind of valve actuating mechanism of automobile engine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1061239A2 (en) * | 1999-06-14 | 2000-12-20 | Toyota Jidosha Kabushiki Kaisha | Combustion control apparatus for internal combustion engine |
| CN1543533A (en) * | 2001-08-17 | 2004-11-03 | �����ɷ� | Rotary actuator device for controlling the stroke of a gas-shuttle poppet valve in the cylinder head of an internal combustion engine |
| CN1900491A (en) * | 2006-07-20 | 2007-01-24 | 姬腾飞 | Timing and lift continuous changeable device for engine air valve |
| CN1965150A (en) * | 2004-06-03 | 2007-05-16 | 丰田自动车株式会社 | Valve gear for multi-cylinder internal combustion engine |
| WO2008142559A1 (en) * | 2007-05-24 | 2008-11-27 | Toyota Jidosha Kabushiki Kaisha | Control apparatus and control method for internal combustion engine |
| CN101907001A (en) * | 2010-07-23 | 2010-12-08 | 高伟 | Stepless variable valve lift mechanism |
| CN102906401A (en) * | 2010-06-10 | 2013-01-30 | 丰田自动车株式会社 | Method and apparatus for controlling variable valve system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4475222B2 (en) * | 2005-11-07 | 2010-06-09 | トヨタ自動車株式会社 | Valve timing control device |
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2013
- 2013-09-18 CN CN201310429903.7A patent/CN103470326B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1061239A2 (en) * | 1999-06-14 | 2000-12-20 | Toyota Jidosha Kabushiki Kaisha | Combustion control apparatus for internal combustion engine |
| CN1543533A (en) * | 2001-08-17 | 2004-11-03 | �����ɷ� | Rotary actuator device for controlling the stroke of a gas-shuttle poppet valve in the cylinder head of an internal combustion engine |
| CN1965150A (en) * | 2004-06-03 | 2007-05-16 | 丰田自动车株式会社 | Valve gear for multi-cylinder internal combustion engine |
| CN1900491A (en) * | 2006-07-20 | 2007-01-24 | 姬腾飞 | Timing and lift continuous changeable device for engine air valve |
| WO2008142559A1 (en) * | 2007-05-24 | 2008-11-27 | Toyota Jidosha Kabushiki Kaisha | Control apparatus and control method for internal combustion engine |
| CN102906401A (en) * | 2010-06-10 | 2013-01-30 | 丰田自动车株式会社 | Method and apparatus for controlling variable valve system |
| CN101907001A (en) * | 2010-07-23 | 2010-12-08 | 高伟 | Stepless variable valve lift mechanism |
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