Electric control valve mechanism, engine and automobile
A valve mechanism and engine technology, applied in the direction of machines/engines, engine components, non-mechanically actuated valves, etc., can solve the problems that the engine cannot obtain high-speed efficiency, cannot adjust the valve lift, and cannot obtain low-speed torque. Achieve the effects of improving inflation efficiency, high load capacity and increasing possibility
Active Publication Date: 2019-03-26
SAIC MOTOR
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The valve structure of the traditional gasoline engine is as follows: figure 1 As shown, it consists of valve 1', valve spring 2', camshaft 3' and timing sprocket 4', etc. The valve timing that can be adjusted is limited, and the valve lift cannot be adjusted. The valve lift is fixed and cannot be changed. Yes, that is, there is only one cam profile of the camshaft
[0008] The cam profile design of the traditional gasoline engine is a balanced choice for the engine under all working conditions. As a result, the engine can neither get the best high-speed efficiency nor the best low-speed torque, and it is impossible to make the engine run at high speed. Both the low-speed zone and the low-speed zone are well-responsive
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0035] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0036] In this article, terms such as "upper, lower, left, right" are established based on the positional relationship shown in the drawings, and the corresponding positional relationship may also change accordingly depending on the drawings. It is understood as an absolute limitation on the scope of protection; moreover, relative terms such as "first" and "second" are only used to distinguish one from another component with the same name, and do not necessarily require or No such actual relationship or order between these components is implied.
[0037] Please refer to figure 2 , image 3 , Figure 4 , figure 2 A schematic structural diagram of an electronically controlled valve mechanism provided by an embodiment of the pres...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an electric control valve mechanism, an engine and an automobile. The electric control valve mechanism comprises a valve (1), a valve driving mechanism and a valve spring (2),wherein the valve driving mechanism comprises a shell (3), a motor (4), a planetary roller screw (5) and a push rod (6). The planetary roller screw (5) comprises a screw (51), a roller (52) and a nut(53) arranged at the periphery of the roller, wherein the roller (52) is in engaged transmission with the screw (51), and the nut (53) is in engaged transmission with the roller (52); a power output shaft of the motor (4) is connected with the screw (51), the nut (53) is connected with the push rod (6), and a guide mechanism is arranged between the nut (53) and the shell (3); and the lower end ofthe push rod (6) pushes the valve (1) to act. The electronic control valve mechanism can adjust valve timing and valve lift according to actual operation conditions, so that the engine performance isimproved, and oil consumption and pollutant emission are reduced.
Description
technical field [0001] The invention relates to the technical field of automobile valve mechanism, in particular to the electric control valve mechanism of automobile. The invention also relates to an engine and an automobile provided with the electronically controlled valve mechanism. Background technique [0002] In the future, internal combustion engines will have to meet increasingly stringent requirements for CO2 emissions and exhaust pollutants, which will make valve trains play a very important role. On the one hand, the valve train must enable the lowest possible losses in the gas exchange cycle; on the other hand, the valve train must achieve the best possible in-cylinder mixing for optimum efficiency and low emissions during the combustion process. In addition, by adjusting the compression ratio and the amount of residual exhaust gas in the cylinder within a certain range, the combustion process can be directly affected. [0003] Therefore, in the past few years,...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): F01L9/04F01L1/12F01L9/20
CPCF01L1/12F01L9/22F01L9/20
Inventor 徐旭初朱新星陶林杰张伯平李玄玄
Owner SAIC MOTOR