CN201496115U - Continuous variable gas distribution control system of spark ignition engine - Google Patents
Continuous variable gas distribution control system of spark ignition engine Download PDFInfo
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- CN201496115U CN201496115U CN2009202350786U CN200920235078U CN201496115U CN 201496115 U CN201496115 U CN 201496115U CN 2009202350786 U CN2009202350786 U CN 2009202350786U CN 200920235078 U CN200920235078 U CN 200920235078U CN 201496115 U CN201496115 U CN 201496115U
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Abstract
The utility model discloses a continuous variable gas distribution control system of a spark ignition engine. A crank and connecting rod mechanism is connected with a piston; an intake manifold and an exhaust pipe are communicated with a cylinder body of the engine; an intake valve arranged at the connection part of the intake manifold and the cylinder body of the engine is connected with a hydraulic piston push rod of an intake hydraulic control component through an intake valve spring; and an exhaust valve arranged at the connection part of the exhaust pipe and the cylinder body of the engine is connected with the hydraulic piston push rod of the intake hydraulic control component through an exhaust valve spring. The system can continuously optimize the open-and-close time (timing), the open-and-close speed and stroke, the-open and-close time length (crank angle), and the coincidence angle of the intake and the exhaust valves according to the requirement of the rotating speed and the load of the engine, thereby achieving continuous variable gas distribution control, and fully playing and improving the power performance, the economic performance and the exhaust performance of the engine.
Description
Technical field
The utility model relates to a kind of continuous and variable gas distribution control system of spark ignition engine.
Background technique
Present ignition internal combustion engine distribution control system mainly is to adopt the cam on the power drive control camshaft to drive the opening and closing of inlet and outlet door.The control of so-called variable air inlet also be by employing make motor under different rotating speed operating modes by different cam control, and then the aperture and the time that influence intake valve control; Or make admission cam shaft with respect to angle of toothed belt rotation, and then reach the purpose that intake valve postpones switching, the intake lag angle during in order to the increase high speed, thus the charging efficiency that improves cylinder realizes.Present ignition internal combustion engine is to adopt closure to control motor all, does not have rotating speed and the load of closure with regard to uncontrollable motor, and the control of this motor is to control the rotating speed of motor and load by the aperture size of closure.This control is carried out stage by stage, and the control of the timing of its inlet and outlet door and open and close angle can not be controlled arbitrarily.
Summary of the invention
The purpose of this utility model provides a kind of continuous and variable gas distribution control system of spark ignition engine, this engine air distribution system can continuous variable control, can be according to the demand of the rotating speed and the load of motor, optimize the open and close time (timing) of (arbitrarily) control intake valve and exhaust valve, open and close speed and stroke, coincidence angle of open and close duration (crank angle) and inlet and exhaust valve or the like.
The purpose of this utility model is achieved through the following technical solutions:
A kind of continuous and variable gas distribution control system of spark ignition engine, comprise connecting rod, piston, intake manifold, intake valve spring, spark plug, exhaust valve spring, outlet pipe and engine cylinder-body, connecting rod is connected with piston, and piston is arranged in the engine cylinder-body, intake manifold and outlet pipe all communicate with engine cylinder-body, it is characterized in that: the joint at intake manifold and engine cylinder-body is provided with intake valve, and intake valve is connected with the hydraulic piston push rod of air inlet Hydraulic Conirol Unit by the intake valve spring; Joint at outlet pipe and engine cylinder-body is provided with exhaust valve, and exhaust valve is connected with the hydraulic piston push rod of exhaust Hydraulic Conirol Unit by the exhaust valve spring.
In the utility model, cylinder body in the air inlet Hydraulic Conirol Unit comprises A chamber and B chamber, the elastic force of the pressure difference in A chamber and B chamber and intake valve spring is suitable, by accurate control A chamber and the pressure difference in B chamber and the balance of intake valve spring force opening speed, stroke, the opening time of intake valve are carried out continuous control, finish continuous control air inlet gas distribution system; Cylinder body in the exhaust Hydraulic Conirol Unit comprises C chamber and D chamber, the elastic force of the pressure difference in C chamber and D chamber and exhaust valve spring is suitable, by accurate control C chamber and the pressure difference in D chamber and the balance of exhaust valve spring force opening speed, stroke, the opening time of exhaust valve are carried out continuous control, finish continuous control exhaust gas distribution system.
The utility model can also can be provided with connecting rod with the inlet and exhaust valve bar of the spark-ignition engine push rod as hydraulic piston on intake valve, the hydraulic piston push rod is fixedlyed connected with connecting rod, drives the inlet and exhaust valve bar with the push rod of hydraulic piston.
In the utility model, the inlet and exhaust valve of motor adopts hydraulic control, controls its hydraulic piston push rod or speed, stroke and the operating time of inlet and exhaust valve bar (or crank angle of work) by control hydraulic piston pressure inside size.
The utility model is by accurately controlling the pressure in A, B chamber in the Hydraulic Conirol Unit, pressure difference by A, B chamber and intake valve spring equilibrium of forces carry out continuous control to the opening speed of intake valve, stroke, opening time etc., thereby realize continuous control air inlet gas distribution system.
The utility model is by accurately controlling the pressure in C, D chamber in the Hydraulic Conirol Unit, pressure difference by C, D chamber and exhaust valve spring equilibrium of forces carry out continuous control to the opening speed of exhaust valve, stroke, opening time etc., thereby realize continuous control exhaust gas distribution system.
The utility model passes through the control of speed, stroke and operating time (or crank angle of work) to the inlet and outlet door, can be according to the demand of the rotating speed and the load of motor, the open and close time (timing) of continuous optimization control intake valve and exhaust valve, open and close speed and stroke, coincidence angle of open and close duration (crank angle) and inlet and exhaust valve or the like.Realize truly " continuous and variable gas distribution control ".
A kind of continuous and variable gas distribution control system of spark ignition engine that the utility model provides, the method of this control intake valve and exhaust valve matches with other control function of motor, can save " closure " of ignition internal combustion engine, promptly do not need closure just can directly control the load of motor, become " non-air throttle spark-ignition engine ", further reduced the resistance of gas handling system, improved every circuit charging efficiency, thereby made that power character, Economy and the emission performance of motor obtain unprecedented give full play to and improving.And the utility model is simple in structure, and oil consumption is low.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is another an embodiment's of the present utility model structural representation.
Embodiment
A kind of continuous and variable gas distribution control system of spark ignition engine described in the utility model, see Fig. 1, comprise connecting rod 1, piston 2, intake manifold 3, intake valve spring 5, spark plug 6, exhaust valve spring 8, outlet pipe 9 and engine cylinder-body 10, connecting rod 1 is connected with piston 2, and piston 2 is arranged in the engine cylinder-body 10, and intake manifold 3 and outlet pipe 9 all communicate with engine cylinder-body 10.Joint at intake manifold 3 and engine cylinder-body 10 is provided with intake valve 31, intake valve 31 is connected with the hydraulic piston push rod 41 of air inlet Hydraulic Conirol Unit 4 by intake valve spring 5, at this moment, with the intake valve bar of ignition internal combustion engine push rod as hydraulic piston.Joint at outlet pipe 9 and engine cylinder-body 10 is provided with exhaust valve 91, and exhaust valve 91 is connected with the hydraulic piston push rod 71 of exhaust Hydraulic Conirol Unit 7 by exhaust valve spring 8, at this moment with the exhaust valve rod of the ignition internal combustion engine push rod as hydraulic piston.
Cylinder body in the air inlet Hydraulic Conirol Unit 4 comprises A chamber and B chamber, by accurate control A chamber and the pressure difference in B chamber and the balance of intake valve spring 5 elastic force opening speed, stroke, the opening time of intake valve 31 are carried out continuous control, finish continuous control air inlet gas distribution system.Cylinder body in the exhaust Hydraulic Conirol Unit 7 comprises C chamber and D chamber, by accurate control C chamber and the pressure difference in D chamber and the balance of exhaust valve spring 8 elastic force opening speed, stroke, the opening time of exhaust valve 91 are carried out continuous control, finish continuous control exhaust gas distribution system.
In the utility model, the inlet and exhaust valve of motor adopts hydraulic control, controls its hydraulic piston push rod or speed, stroke and the operating time of inlet and exhaust valve bar (or crank angle of work) by control hydraulic piston pressure inside size.
Fig. 2 is another an embodiment's of the present utility model structural representation.At this moment, be provided with connecting rod 311 on intake valve 31, hydraulic piston push rod 41 is fixedlyed connected with connecting rod 311.Be provided with connecting rod 911 on exhaust valve 91, hydraulic piston push rod 71 is fixedlyed connected with connecting rod 911.
The utility model at load hour, such as in, when low speed and idling, can make part inlet and outlet door (multivalve engine) even motor partial cylinders whole inlet and outlet door contract fullys and do not work, and have only partial cylinders work, thereby reach best energy-saving effect.Such as: 4 Cylinder engines when the idling, can have only 3 cylinder operation, 5 cylinders or 6 Cylinder engines also can have only 3 cylinders, 4 cylinders or 5 cylinder workings when idling, control system can be optimized control according to energy-conservation optimum efficiency according to the demand of the rotating speed and the load of motor.
In other working state, can be according to the demand of the rotating speed and the load of motor, optimize the open and close time (timing) of (arbitrarily) control intake valve and exhaust valve, open and close speed and stroke, coincidence angle of open and close duration (crank angle) and inlet and exhaust valve or the like.Thereby make that power character, Economy and the emission performance of motor obtain unprecedented give full play to and improving.
Spark-ignition engine variable gas distribution control system of the present utility model not only can change stroke, timing and the open and close angle of inlet and exhaust valve arbitrarily, can also change the coincidence angle of distribution arbitrarily.Realize truly " variable gas distribution control ".
Spark-ignition engine variable gas distribution control system of the present utility model, the method of this control intake valve and exhaust valve matches with other control function of motor, can save " closure " of ignition internal combustion engine, promptly do not need closure just can directly control the load of motor, become " non-air throttle spark-ignition engine ", further reduced the resistance of gas handling system, improved every circuit charging efficiency, made power character, Economy and the emission performance of motor be fully played like this and improve.7
Claims (4)
1. continuous and variable gas distribution control system of spark ignition engine, comprise connecting rod (1), piston (2), intake manifold (3), intake valve spring (5), spark plug (6), exhaust valve spring (8), outlet pipe (9) and engine cylinder-body (10), connecting rod (1) is connected with piston (2), and piston (2) is arranged in the engine cylinder-body (10), intake manifold (3) and outlet pipe (9) all communicate with engine cylinder-body (10), it is characterized in that: the joint at intake manifold (3) and engine cylinder-body (10) is provided with intake valve (31), and intake valve (31) is connected with the hydraulic piston push rod (41) of air inlet Hydraulic Conirol Unit (4) by intake valve spring (5); Joint at outlet pipe (9) and engine cylinder-body (10) is provided with exhaust valve (91), and exhaust valve (91) is connected with the hydraulic piston push rod (71) of exhaust Hydraulic Conirol Unit (7) by exhaust valve spring (8).
2. continuous and variable gas distribution control system of spark ignition engine according to claim 1 is characterized in that: the cylinder body in the air inlet Hydraulic Conirol Unit (4) comprises A chamber and B chamber, and the elastic force of the pressure difference in A chamber and B chamber and intake valve spring (5) is suitable; Cylinder body in the exhaust Hydraulic Conirol Unit (7) comprises C chamber and D chamber, and the elastic force of the pressure difference in C chamber and D chamber and exhaust valve spring (8) is suitable.
3. continuous and variable gas distribution control system of spark ignition engine according to claim 1 is characterized in that: be provided with connecting rod (311) on intake valve (31), hydraulic piston push rod (41) is fixedlyed connected with connecting rod (311).
4. continuous and variable gas distribution control system of spark ignition engine according to claim 1 is characterized in that: be provided with connecting rod (911) on exhaust valve (91), hydraulic piston push rod (71) is fixedlyed connected with connecting rod (911).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202350786U CN201496115U (en) | 2009-08-19 | 2009-08-19 | Continuous variable gas distribution control system of spark ignition engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202350786U CN201496115U (en) | 2009-08-19 | 2009-08-19 | Continuous variable gas distribution control system of spark ignition engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201496115U true CN201496115U (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202350786U Expired - Fee Related CN201496115U (en) | 2009-08-19 | 2009-08-19 | Continuous variable gas distribution control system of spark ignition engine |
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| Country | Link |
|---|---|
| CN (1) | CN201496115U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863658A (en) * | 2015-05-10 | 2015-08-26 | 吴丹阳 | Mechanical force-balancing device |
-
2009
- 2009-08-19 CN CN2009202350786U patent/CN201496115U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863658A (en) * | 2015-05-10 | 2015-08-26 | 吴丹阳 | Mechanical force-balancing device |
| CN104863658B (en) * | 2015-05-10 | 2017-09-08 | 昆山市易泰汽车科技有限公司 | Mechanical stress balancing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20120819 |