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Valve driving device and method of engine

A driving device and engine technology, which is applied in the direction of engine components, machines/engines, valve devices, etc., can solve the problems of changing the layout of the engine valve mechanism, adding additional parts, complex structure, etc., to achieve good cold start performance at idle speed and ensure stability Sex, good effect

Pending Publication Date: 2021-10-15
庄辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a mechanical engine valve drive device, which will solve the deficiencies of the variable valve lift technology in the prior art, such as the existing complex structure that leads to the addition of many extra parts , making major changes and adjustments to the arrangement of the engine's valve train

Method used

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  • Valve driving device and method of engine
  • Valve driving device and method of engine
  • Valve driving device and method of engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Such as image 3 As shown, the engine valve driving device 100 of the present invention includes a casing 105, connecting rods (upper connecting rod 310 and lower connecting rod 320) and a working piston 330, and a drive reset assembly 290 (the drive reset device here has a drive piston 280 and reset piston 210 form). Such as figure 1 with 2 As shown, the box body 105 is a rocker arm, and the rocker arm is assembled on the rocker arm shaft (not shown) of the engine through the rocker arm hole (not shown); the box body 105 is provided with a vertical channel 140 and a horizontal channel 130 that vertically intersect. The oil channel 110 and the assembly step 170 (located on the vertical channel 140 ), the bottom 190 and the positioning hole 180 of the horizontal channel 130 .

[0061] Such as image 3 As shown, the vertical passage 140 is provided with an upper connecting rod 310, a lower connecting rod 320, and a limit block 220; The lower end of the upper connecti...

Embodiment 2

[0078] Such as Figure 11 As shown, the engine valve driving device 100 of this embodiment is a modification of Embodiment 1, including a box body 105 ( figure 1 , the box shown is the rocker arm, the rocker arm is assembled on the rocker arm shaft (not shown) of the engine through the rocker arm hole (not shown), the upper link 310 and the lower link 320, the working piston 330 and the drive reset Assembly 290 (the drive reset assembly here has elephant foot 280, and ball pin 288 and pin 282 form). The casing 105 is provided with a vertical passage 140 and a horizontal passage 130 (see figure 1 ).

[0079] Such as Figure 11 As shown, the vertical passage 140 is provided with an upper connecting rod 310 , a lower connecting rod 3201 , and a limit block 220 ; the upper end of the vertical passage 140 is provided with an adjusting bolt 300 , and the lower end is provided with a working piston 330 and a compression spring 340 . The lower connecting rod 3201 is V-shaped, wher...

Embodiment 3

[0095] Such as Figure 16 As shown, the engine valve driving device 100 of this embodiment is a modification of Embodiment 1, including a box body 105 ( figure 1 , the box shown is the rocker arm, the rocker arm is assembled on the rocker arm shaft (not shown) of the engine through the rocker arm hole (not shown), the upper link 310 and the lower link 320, the working piston 330 and the drive reset Component 290 (as Figure 13 with 14 As can be seen, the drive reset assembly here consists of a piston 2822, a locking bolt 283 and a push-pull rod 2882). The casing 105 is provided with a vertical passage 140 and a horizontal passage 130 (see figure 1 ).

[0096]An upper connecting rod 310 and a lower connecting rod 320 are arranged in the vertical passage, a limit block 220 is arranged in the vertical passage 140 , and a working piston 330 is arranged at the lower end. The horizontal channel 130 is provided with a drive reset assembly 290 , a reset spring 270 and a positioni...

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Abstract

The invention relates to a valve driving device and method of an engine. The valve driving device is composed of a box body, connecting rods, a working piston and a driving reset assembly, wherein the connecting rods comprise an upper connecting rod and a lower connecting rod, a vertical channel and a horizontal channel which are in communication are formed in the box body, the upper connecting rod, the lower connecting rod and the working piston are arranged on the lower portion of the vertical channel, a driving piston and a return piston are arranged in the horizontal channel, revolute pairs are arranged among the box body, the upper connecting rod, the lower connecting rod and the working piston, an engine oil path is arranged in the box body to enable the horizontal channel to communicate with the engine oil path, and the driving reset assembly is controlled by opening and closing the engine oil path to adjust the positions of the upper connecting rod and the lower connecting rod, so that the upper connecting rod and the lower connecting rod are in different length states, extension and retraction of the working piston are achieved, and then different valve lifts are achieved. According to the valve driving device and method of the engine, a connecting rod crank arm structure of a mechanical linkage structure is adopted, and the connecting rod crank arm structure and a rocker arm of an engine valve mechanism are integrated, so that the variable valve lift can be achieved, and the fuel economy and maneuvering performance of the engine are improved.

Description

technical field [0001] The invention relates to the field of engines, in particular to a valve driving device for an engine brake and a driving method thereof. Background technique [0002] As environmental problems and energy problems become more and more serious, engines, as the main "consumers" of petroleum energy in the world, are the first to receive special attention. Internal combustion engines are currently the most widely used power machinery in the world and cannot be replaced in a short period of time. Therefore, How to make the internal combustion engine cleaner and more economical is the goal pursued by the world's major automobile manufacturers in recent years. [0003] The maximum valve lift of a traditional engine is fixed and invariable during normal operation, that is, there is only one cam profile of the camshaft. This makes it impossible for the lift to make the engine respond well in both high-speed and low-speed areas. The valve lift of the traditiona...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L1/344
CPCF01L1/3442F01L2001/34423
Inventor 庄辉
Owner 庄辉
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