CN204200298U - A kind of motor electrolyte type variable valve actuation mechanism having cam - Google Patents
A kind of motor electrolyte type variable valve actuation mechanism having cam Download PDFInfo
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- CN204200298U CN204200298U CN201420592246.8U CN201420592246U CN204200298U CN 204200298 U CN204200298 U CN 204200298U CN 201420592246 U CN201420592246 U CN 201420592246U CN 204200298 U CN204200298 U CN 204200298U
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Abstract
The utility model relates to a kind of motor electrolyte type variable valve actuation mechanism having cam, it is characterized in that: in each cylinder, be furnished with two valve assemblies, a solenoid valve, a cam, each connection driven plunger piston assembly above two valve assemblies, cam is connected on camshaft, cam contacts with roller tappet bottom surface, roller tappet top is connected with active plunger piston assembly, solenoid valve periphery is connected with active plunger piston assembly by active plunger high-pressure oil passage, solenoid valve periphery is connected with two driven plunger piston assembly by two driven plunger high-pressure oil passages, solenoid valve base is connected with low pressure oil way, low pressure oil way in each cylinder is independent mutually, low pressure oil way is connected with the shoe cream room in its place cylinder, it belongs to the one of electrolyte type, and uses actuated by cams, and namely transmit cam force by machine oil and drive valve, control flexibly, a solenoid valve all arranged by every cylinder, thus realizes every cylinder and control separately, realizes cylinder deactivation function, each component structural is all fairly simple in addition, can realize generalization and modular design.
Description
Technical field
The utility model relates to a kind of motor electrolyte type variable valve actuation mechanism having cam, belongs to engine valve actuating mechanism design field.
Background technique
Along with the increasingly stringent of Abgasgesetz, changeable air valve technology becomes the hot technology reducing pumping loss, improvement burning, emissions reduction, reduction oil consumption gradually.The ripe application of Variable Valve Timing in changeable air valve technology on most engines.Lift range variable technology has also started to be applied on some volume production motor.
Lift range variable technology is divided into section variable formula (abbreviation segmented) and continuous variable formula (abbreviation continous way), and continous way can be divided into Electromechanical and electrolyte type again.Current segmented has the Vario Cam Plus of VTEC, Porsche company of Honda company and the MIVEC etc. of Mitsubishi company, these technology can only realize two sections of valve lift or three sections variable, the demand of Under Different Work Condition of Engine for different lift can only be met to a certain extent.Current continous way has BMW Valvetronic and Nissan VVEL etc., and these technology all belong to Electromechanical; The patent US20060037568A1 of Nissan, Intake valve control system and method for internal combustion engine, the distance between the oscillation center of rocking arm and drive axis is changed by a Control Shaft, thus the equivalent Rocker Ratio changed between driving cam and valve, then change valve lift, this mechanism controls the valve lift of all cylinders by a driven by servomotor Control Shaft; Current Electromechanical variable valve actuation mechanism structure is too complicated, and Electromechanical structure not easily realizes modularization, each type part used can not be general, can not realize the independent control of each cylinder, control mode underaction, can not realize the function of cylinder deactivation of engine.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to provide a kind of motor electrolyte type variable valve actuation mechanism having cam, it belongs to the one of electrolyte type, and use actuated by cams, namely transmit cam force by machine oil and drive valve, control flexibly, a solenoid valve all arranged by every cylinder, thus realize every cylinder and control separately, realize cylinder deactivation function; Each component structural is all fairly simple in addition, can realize generalization and modular design.
The technical solution of the utility model is achieved in that a kind of motor electrolyte type variable valve actuation mechanism having cam, it is characterized in that: in each cylinder, be furnished with two valve assemblies, a solenoid valve, a cam, each connection driven plunger piston assembly above two valve assemblies, cam is connected on camshaft, cam contacts with roller tappet bottom surface, roller tappet top is connected with active plunger piston assembly, solenoid valve periphery is connected with active plunger piston assembly by active plunger high-pressure oil passage, solenoid valve periphery is connected with two driven plunger piston assembly by two driven plunger high-pressure oil passages, solenoid valve base is connected with low pressure oil way, low pressure oil way in each cylinder is independent mutually, low pressure oil way is connected with the shoe cream room in its place cylinder, the main oil feeding line of system oil feeding line separates respectively cylinder cap and draw oil circuit, point oil feeding line and secondary oil feeding line, cylinder cap draws oil circuit and is connected with variable valve actuation mechanism, secondary oil feeding line is connected with clearance adjuster oil feeding line, main oil feeding line is furnished with one-way valve with a point oil feeding line, oil feeding line is divided to be connected with the low pressure oil way in each cylinder of motor, clearance adjuster oil feeding line divides and has roller tappet lubricating oil path, roller tappet lubricating oil path is connected with roller tappet.
Good effect of the present utility model is that its structure is simple, controls valve lift, control flexibly by the open and close of Controlling solenoid valve, and every cylinder all can arrange a solenoid valve, thus realizes every cylinder and control separately, realizes cylinder deactivation function; Each component structural is all fairly simple in addition, can realize generalization and modular design.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present utility model.
Fig. 2 is oil circuit complete layout of the present utility model.
Fig. 3 is the integral arrangement structural drawing of the utility model in three cylinder engine.
Embodiment
Specific embodiments of the present utility model is described in detail below in conjunction with accompanying drawing.As shown in Fig. 1-3, a kind of motor electrolyte type variable valve actuation mechanism having cam, it is characterized in that: in each cylinder, be furnished with two valve assemblies 3, a solenoid valve 4, a cam 2, each connection driven plunger piston assembly 8 above two valve assemblies 3, cam 2 is connected on camshaft 1, cam 2 contacts with roller tappet 12 bottom surface, roller tappet 12 top is connected with active plunger piston assembly 7, solenoid valve 4 periphery is connected with active plunger piston assembly 7 by active plunger high-pressure oil passage 5, solenoid valve 4 periphery is connected with two driven plunger piston assembly 8 by two driven plunger high-pressure oil passages 6, be connected with low pressure oil way 9 bottom solenoid valve 4, low pressure oil way 9 in each cylinder is independent mutually, low pressure oil way 9 is connected with the shoe cream room 11 in its place cylinder, the main oil feeding line 10-3 of system oil feeding line 10 separates respectively cylinder cap and draw oil circuit 10-1, point oil feeding line 10-4 and secondary oil feeding line 10-2, cylinder cap draws oil circuit 10-1 and is connected with variable valve actuation mechanism, secondary oil feeding line 10-2 is connected with clearance adjuster oil feeding line 13, main oil feeding line 10-3 is furnished with one-way valve with a point oil feeding line 10-4, oil feeding line 10-4 is divided to be connected with the low pressure oil way 9 in each cylinder of motor, clearance adjuster oil feeding line 13 divides and has roller tappet lubricating oil path 13-1, roller tappet lubricating oil path 13-1 is connected with roller tappet 12.
Camshaft 1 there are three cams 2, each cam 2 drives two valve assemblies 3 of same cylinder by electricity Ye mechanism, a solenoid valve 4 arranged by every cylinder, solenoid valve 4 periphery is connected with active plunger piston assembly 7 by a high-pressure oil passage 5, and by two high-pressure oil passages 6 respectively plunger piston assembly 8 driven with two be connected, the end of solenoid valve 4 is communicated with low pressure oil way 9, and the low pressure oil way 9 of each cylinder is independent mutually, and low pressure oil way 9 is connected with the shoe cream room 11 of each cylinder respectively.A shoe cream room 9 arranged by every cylinder.
Driven plunger piston assembly 8 inside comprises hydraulic lash adjuster parts and the slow mechanism part of taking a seat of valve.
Mechanism is full of oil by system oil feeding line 10 by this mechanism when using first time, in using process subsequently, in-house machine oil has leakage to a certain degree, and system oil feeding line 10 can machine oil at any time in replenishment system, ensures to be full of machine oil in each oil pocket oil circuit in mechanism.System oil feeding line 10 draws oil circuit 10-1 by cylinder cap and machine oil is guided to variable valve actuation mechanism, and by main oil feeding line 10-3 by oil delivery to each cylinder, then by dividing an oil feeding line 10-4 to be each cylinder fuel feeding respectively, one-way valve is arranged between main oil feeding line 10-3 and point oil feeding line 10-4, machine oil is made can freely to flow to low pressure oil way 9 by system oil feeding line 10, and be full of each oil circuit and oil pocket in mechanism, and machine oil can not flow to system confession by low pressure oil way 9
Oil oil circuit 10.Secondary oil feeding line 10-2 is connected to clearance adjuster oil feeding line 13 fuel feeding with main oil feeding line 10-3.Roller tappet 12 is lubricated by roller tappet lubricating oil path 13-1, and roller tappet lubricating oil path 13-1 is connected with clearance adjuster oil feeding line 13.
Valve assembly 3 adopts long engine valve stem valve, and engine valve stem is extended to more than camshaft, and to ensure in engine operation process, driven plunger piston assembly 8 is not interfered with camshaft.
Engine operation process cam 2 driving rolls tappet 12, roller tappet 12 drives initiatively plunger piston assembly 7, if now solenoid valve 4 is closed condition, then initiatively plunger piston assembly 7 drives machine oil to flow to high-pressure oil passage 6 by high-pressure oil passage 5, then driving force is delivered to the driven plunger piston assembly 8 be connected with high-pressure oil passage 6, thus drives valve assembly 3; If solenoid valve 4 is opening state, high-pressure oil passage 5 and high-pressure oil passage 6 are communicated with low pressure oil way 9, initiatively plunger piston assembly 7 drives machine oil to flow to low pressure oil way 9 by high-pressure oil passage 5, then the shoe cream room 11 be connected with low pressure oil way 9 is flowed to, driving force cannot be fully transmitted to valve assembly 3, does not drive valve assembly.Engine ECU realizes different valve lifts according to operating conditions solenoid valve 4 close moment of motor from the duration of closedown.
Claims (1)
1. one kind has the motor electrolyte type variable valve actuation mechanism of cam, it is characterized in that: in each cylinder, be furnished with two valve assemblies, a solenoid valve, a cam, each connection driven plunger piston assembly above two valve assemblies, cam is connected on camshaft, cam contacts with roller tappet bottom surface, roller tappet top is connected with active plunger piston assembly, solenoid valve periphery is connected with active plunger piston assembly by active plunger high-pressure oil passage, solenoid valve periphery is connected with two driven plunger piston assembly by two driven plunger high-pressure oil passages, solenoid valve base is connected with low pressure oil way, low pressure oil way in each cylinder is independent mutually, low pressure oil way is connected with the shoe cream room in its place cylinder, the main oil feeding line of system oil feeding line separates respectively cylinder cap and draw oil circuit, point oil feeding line and secondary oil feeding line, cylinder cap draws oil circuit and is connected with variable valve actuation mechanism, secondary oil feeding line is connected with clearance adjuster oil feeding line, main oil feeding line is furnished with one-way valve with a point oil feeding line, oil feeding line is divided to be connected with the low pressure oil way in each cylinder of motor, clearance adjuster oil feeding line divides and has roller tappet lubricating oil path, roller tappet lubricating oil path is connected with roller tappet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420592246.8U CN204200298U (en) | 2014-10-14 | 2014-10-14 | A kind of motor electrolyte type variable valve actuation mechanism having cam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420592246.8U CN204200298U (en) | 2014-10-14 | 2014-10-14 | A kind of motor electrolyte type variable valve actuation mechanism having cam |
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| Publication Number | Publication Date |
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| CN204200298U true CN204200298U (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420592246.8U Expired - Fee Related CN204200298U (en) | 2014-10-14 | 2014-10-14 | A kind of motor electrolyte type variable valve actuation mechanism having cam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361088A (en) * | 2018-04-19 | 2018-08-03 | 龙口中宇热管理系统科技有限公司 | A kind of diesel engine hydraulic variable valve actuator for air and working method |
-
2014
- 2014-10-14 CN CN201420592246.8U patent/CN204200298U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361088A (en) * | 2018-04-19 | 2018-08-03 | 龙口中宇热管理系统科技有限公司 | A kind of diesel engine hydraulic variable valve actuator for air and working method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20191014 |
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| CF01 | Termination of patent right due to non-payment of annual fee |