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Air distribution device of engine

A technology of engine and rotational connection, applied in the direction of engine components, machines/engines, valve devices, etc., can solve the problems of affecting the closing force of the outward opening valve body, the closing force damages the outward opening valve body, and leakage of the normal operation of the engine, and achieves structural Simple, efficient, low power consumption effect

Inactive Publication Date: 2013-03-27
ZEROQ SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cold and heat deformation, wear and machining errors of the outwardly opening valve body will seriously affect the closing force of the outwardly opening valve body, which will eventually cause excessive closing force to damage the outwardly opening valve body, or insufficient closing force to cause leakage and affect the normal operation of the engine. A newer engine valve train needs to be invented

Method used

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  • Air distribution device of engine
  • Air distribution device of engine
  • Air distribution device of engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 The engine gas distribution device shown is a two-link gas distribution mechanism for an engine, including an outwardly opening valve body 1, and the outwardly opening valve body 1 is connected to a structure 4 through a connecting rod group. Specifically, the connecting rod group Including connecting rod A 2 and connecting rod B 3, the outward opening valve body 1 is rotatably connected with one end of the connecting rod A 2 through the valve body pin 1020, and the other end of the connecting rod A 2 is connected through the middle pin 23 It is rotatably connected with one end of the connecting rod B3, and the other end of the connecting rod B3 is rotatably connected with the structure 4 through the structure pin 34, and the structure 4 is set as the column of the constant pressure hydraulic device 5 Plug; below the plunger as the structure 4, specifically at the lower port of the constant pressure hydraulic device 5, a stopper protrusion 51 as a stopp...

Embodiment 2

[0042] Such as figure 2 Shown engine air distribution device, its difference with embodiment 1 is:

[0043] The timing control device 2000 is specifically configured to be composed of a cam 7, a cam slider 8, a spring slider 9 and a spring 10, and the cam slider 8 and the spring slider 9 are simultaneously connected with the two linkages 2030 The middle part of the connection between the connecting rod A 2 and the connecting rod B 3 is in sliding contact, the spring slider 9 is controlled by the spring 10, and the cam slider 8 is controlled by the cam 7 control.

Embodiment 3

[0045] Such as image 3 Shown engine air distribution device, its difference with embodiment 1 is:

[0046] The timing control device 2000 is specifically configured to be composed of a cam 7, a cam slider 8, a spring 10, a spring ball rod 11 and a guide rail 12. In the rod system 2030, the spring ball hole 110 at the middle part of the connection between the connecting rod A 2 and the connecting rod B 3 is in spherical rotational contact, and the other end of the spring ball head rod 11 is in contact with the guide rail 12 Slidingly connected, the guide rail 12 is rotationally connected with the engine body, and the cam slider 8 is controlled by the cam 7;

[0047] Under the structure of this example, as a changeable embodiment, the spring ball head rod 11 can be changed into a spring stud rod 111, and correspondingly, the connecting rod A 2 and the connecting rod B 3 The spring ball hole 110 at the connection is replaced with a spring column groove 1110, so that the column...

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PUM

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Abstract

The invention discloses an air distribution device of an engine. The air distribution device comprises an outward-opening valve body, the outward-opening valve body is connected with a structural body through a connecting rod group or a tappet group, and the upper part of the structural body is subject to action of a constant pressure device; the connecting rod group or the tappet group is controlled by a timing control device to open or close the outward-opening valve body; and a limit device for limiting downward movement of the structural body is arranged under the structural body. By adopting the air distribution device of the engine, special requirements of rapid opening and closing response of the valve body, high accuracy of air distribution, dynamic cylinder deactivation, and dynamic switching between a two-stroke mode and a four-stroke mode and the like can be satisfied, and the efficiency of the engine can be improved.

Description

technical field [0001] The invention relates to the field of engines, in particular to an engine gas distribution device. Background technique [0002] The performance of the engine valve train is very important to the efficiency and low emission of the engine. Research and development in this area has been active over the past few decades, however to date, most engines have valvetrains that use either rotating cams or rotating cam rocker arms with return springs. This structure dominates the engine field and is a very mature technology. However, with the continuous improvement of people's requirements for engine efficiency and environmental protection, higher requirements are also put forward for engine valve trains. For this reason, the present inventor has applied for a time-difference crank-link mechanism (patent application numbers: 200710164142.1 and 200720177683.3) and an externally opened valve engine (patent application numbers: 200910143221.3 and 200920154748.1)....

Claims

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Application Information

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IPC IPC(8): F01L13/00
Inventor 靳北彪
Owner ZEROQ SCI & TECH