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Gas valve and gas engine

A gas valve and valve shaft technology, which is applied to combustion engines, internal combustion piston engines, engine components, etc., can solve the problems of valve shaft wear and shorten the service life of disc-shaped gas valves, and achieve the effect of reducing friction and prolonging service life

Pending Publication Date: 2018-04-13
湖南省力宇燃气动力有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a gas valve and a gas engine to improve the friction between the valve shaft and the valve body when the valve shaft rotates in the prior art, which causes the wear of the valve shaft, thereby shortening the life of the disc-shaped gas valve. Technical issues of service life

Method used

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Embodiment Construction

[0029] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear ", etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specif...

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Abstract

The invention provides a gas valve and a gas engine, and relates to the technical field of an engine. The gas valve includes a valve shaft and protective sleeves; the outside of the valve shaft is sleeved with the protective sleeves which are annularly arranged, and the protective sleeves are movably connected with the valve shaft; a first oil inlet hole is formed in one end of the valve shaft, afirst oil outlet hole is formed in the outer wall of the valve shaft, first passages are formed inside the valve shaft, and the first oil inlet hole communicates with the first oil outlet hole throughthe first passages; and the first oil outlet hole is correspondingly arranged with the protective sleeves. When the valve shaft rotates, the protection sleeves can avoid friction between the valve shaft and a valve body to prolong the service life of the valve shaft, and also act as a support limit for the valve shaft; and in addition, the first oil inlet hole, the first passages, and the first oil outlet hole are arranged to facilitate the flow of grease between the valve shaft and the protective sleeves, to reduce the friction between the valve shaft and the protective sleeves, and to prolong the service life of gas valve.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a gas valve and a gas engine. Background technique [0002] The gas valve is a new type of safety supporting device for gas pipeline engineering. It is used to cut off, connect and adjust the gas in the pipeline, and has good control characteristics and closing and sealing performance. It is suitable for various gas medium pipelines such as city gas, liquefied petroleum, natural gas, oxygen, etc. According to the direction in which the closing member moves relative to the valve seat, the gas valve can be divided into: cut-off type, gate type, disc type or slide valve type, etc. Wherein, the closing part of the disc-shaped gas valve is a disc-shaped valve piece, which rotates around the valve shaft in the valve seat. [0003] In the prior art, the valve shaft of the disc-shaped gas valve is installed in the valve body, and the valve plate is arranged in the cavity of the valve ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/226F16K41/10F16N1/00F02D19/02
CPCF02D19/021F16K1/2268F16N1/00Y02T10/30
Inventor 吴振海邓海军
Owner 湖南省力宇燃气动力有限公司
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