Novel rotary valve shaft and processing method thereof
A rotary valve, a new type of technology, applied in the direction of engine control, machine/engine, mechanical equipment, etc., can solve the problems of valve shaft thermal expansion, valve shaft scraping lubricating oil, etc., and achieve the effect of increasing elasticity
Active Publication Date: 2015-08-26
盐城滨瀚新材料科技有限公司
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Problems solved by technology
[0003] The present invention overcomes the deficiencies in the prior art, and provides a new type of rotary valve shaft and its processing method which has simple structure, high efficiency, good elasticity and can well solve the problems of thermal expansion of the existing valve shaft and lubricating oil scraping of the valve shaft.
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[0023] like Figure 1-Figure 4 As shown, the new rotary valve shaft includes a valve shaft body 1, the valve shaft body 1 is in the shape of a round tube as a whole, the axial connection of the valve shaft body 1 adopts movable lap joints and the overlapping parts can be elastically stretched, and the valve shaft body 1 is internally set There is a circular partition 2, the middle elastic expansion ring 3 is arranged on both sides of the circular partition 2, a rectangular air inlet 4 is arranged on the inner wall of the circular tube on one side of the circular partition 2, and a circular air inlet 4 is arranged on the other side of the circular partition. The inner wall of the pipe is provided with a rectangular exhaust port 5, and the air inlet 4 and the exhaust port 5 are axially dislocated in the round pipe. The round pipe at the end of the air inlet 4 is provided with an air intake elastic expansion ring 6, and the round pipe The outside is connected with a timing belt p...
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The invention belongs to the field of rotary valves, particularly discloses a novel rotary valve shaft and a processing method thereof, overcomes the defects in the prior art, and provides a novel rotary valve shaft which is simple in structure, high in efficiency and good in elasticity, and can solve the problems that the conventional valve shaft expands after being heated and scrapes lubricating oil, as well as a processing method of the novel rotary valve shaft. The novel rotary valve shaft comprises a valve shaft body, wherein the valve shaft body is integrally shaped like a round pipe; the axial connection part of the valve shaft body adopts a movable lap joint, and the overlapped part can elastically stretch and retract; a round partition plate is arranged inside the valve shaft body, an air inlet is formed in the round pipe inner wall on one side of the round partition plate, an air outlet is formed in the round pipe inner wall on the other side of the round partition plate, and the air inlet and the air outlet are arranged in the axial direction of the round pipe in a stagger manner; an air inlet elastic expansion ring is arranged in the part, at the end part of the air inlet, of the round pipe; a timing belt pulley is connected to the outer part of the round pipe; an air outlet elastic expansion ring is arranged in the part, at the end part of the air outlet, of the round pipe.
Description
technical field [0001] The invention belongs to the field of rotary valves, in particular to a novel rotary valve shaft and a processing method thereof. Background technique [0002] Because the rotary shaft valve has no reciprocating motion, less energy loss and simple structure, it has always been the direction of engine technology research and development. However, due to the contradiction between the shaft seal and heat dissipation performance of the rotary shaft valve, the problem of burning oil has not been well solved. Mass production is still not widespread. Contents of the invention [0003] The invention overcomes the deficiencies of the prior art, and provides a novel rotary valve shaft and a processing method thereof, which have simple structure, high efficiency, good elasticity and can well solve the problems of thermal expansion of the existing valve shaft and lubricating oil scraping of the valve shaft. [0004] In order to solve the above-mentioned technic...
Claims
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IPC IPC(8): F02D9/08
Inventor 陈飞雁陈旭军
Owner 盐城滨瀚新材料科技有限公司