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Variable valve timing mechanism with intermediate lock function

A technology of valve timing and intermediate lock, which is applied in the direction of mechanical equipment, engine components, machines/engines, etc. It can solve the problems of uncoordinated engine intake and exhaust work, change of valve timing, and low combustion efficiency, so as to facilitate assembly , increase the area, improve the effect of combustion efficiency

Active Publication Date: 2017-02-01
宁波太平洋电控系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The valve timing of the existing valve timing mechanism is a fixed value, and the valve timing cannot be changed through the timing mechanism, resulting in uncoordinated intake and exhaust work of the engine, uncoordinated cycle, and low combustion efficiency

Method used

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  • Variable valve timing mechanism with intermediate lock function
  • Variable valve timing mechanism with intermediate lock function
  • Variable valve timing mechanism with intermediate lock function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: as figure 1 , 2 As shown, a variable valve timing mechanism with an intermediate locking function includes a sprocket 1, a stator 2 and a rotor 3 are arranged coaxially inside the sprocket, and the rotor 2 is located in the stator 3. The inner wall of the stator is provided with four adjustable accommodation cavities 4, which are fan-shaped, and the outer wall of the rotor is integrally connected with four adjustable rotating arms 5, and the four adjustable rotating arms are respectively located in the four adjustable accommodation cavities. Radial oil passages 7 are arranged on the rotor. A locking mechanism 6 is arranged on the rotor, and the locking mechanism is a threaded fixed disk, which is threadedly connected with the rotor and conflicts with the bottom surface of the adjustable accommodating cavity. The bottom surface of the adjustable accommodating cavity is a guiding inclined surface, which is inclined towards the axis of the stator, and the b...

Embodiment 2

[0021] Embodiment 2: The structure of this embodiment is basically the same as that of Embodiment 1, the difference is that, as image 3 , 4 As shown, there are two slide grooves 8 on the bottom surface of the adjustable accommodating chamber, the slide grooves are arc-shaped grooves with the axial center of the stator as the center of the circle, and the bottom surface of the adjustable rotating arm is provided with a raised slide rail 9. slots to match. The cross section of the chute is "V" shaped, and the cross section of the slide rail is the same as that of the chute and fitted together.

[0022]The bottom surface of the adjustable accommodating cavity is provided with at least one chute, the chute is an arc-shaped groove centered on the axis of the stator, the bottom surface of the adjustable arm is provided with a raised slide rail, the slide rail cooperates with the chute, and the The contact surface between the adjustable rotating arm and the bottom surface of the a...

Embodiment 3

[0023] Embodiment 3: The structure of this embodiment is basically the same as that of Embodiment 1 or 2, the difference is that, as Figure 5 As shown, the bottom surface of the adjustable accommodating chamber is a guiding slope, and the guiding slope is inclined toward the axis of the stator, and the thickness of the guiding slope increases from the axis toward the outer edge. . The bottom surface of the adjustable accommodating cavity is provided with two slide grooves, the slide grooves are arc grooves with the axis of the stator as the center, and the bottom surface of the adjustable rotating arm is provided with a protruding slide rail, and the slide rails cooperate with the slide grooves. The cross section of the chute is "V" shaped, and the cross section of the slide rail is the same as that of the chute and fitted together.

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PUM

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Abstract

The invention relates to an engine component, in particular to a variable valve timing mechanism with the middle locking function. The variable valve timing mechanism with the middle locking function comprises a chain wheel, a stator and a rotor are coaxially arranged in the chain wheel, the rotor is located in the stator, four adjustable containing cavities are formed in the inner wall of the stator, four adjustable rotating arms are arranged on the outer wall of the rotor, the four adjustable rotating arms are located in the four adjustable containing cavities respectively, the rotor is provided with a radial oil path, and the rotor is provided with a locking mechanism. The variable valve timing mechanism has the advantages that timing of a valve can be adjusted and changed in two directions, the air inlet and outlet amount coordination and circulation coordination of an engine can be effectively improved, and the combustion efficiency can be improved.

Description

technical field [0001] The invention relates to an engine component, in particular to a variable valve timing mechanism with an intermediate locking function. Background technique [0002] The valve timing mechanism of the engine is responsible for providing the fresh air necessary for the combustion of gasoline to the cylinder and discharging the exhaust gas after combustion. The main function of the valve timing mechanism is to open and close the intake and exhaust valves of each cylinder according to a certain time limit, so as to realize the whole process of engine cylinder ventilation and replenishment. The valve lift is used as the opening angle, and the valve timing is used as the opening time. The intake and exhaust volume per unit time are determined by the valve lift and valve timing. The valve timing of the existing valve timing mechanism is a fixed value, and the valve timing cannot be changed through the timing mechanism, resulting in uncoordinated intake and e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L1/34
CPCF01L1/34
Inventor 黄浩黄涛
Owner 宁波太平洋电控系统有限公司
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