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Electric control gas injection valve for engine

A gas injection valve and engine technology, which is applied to engine components, combustion engines, fuel injection devices, etc., can solve the problems of dependence on imports, low matching capabilities of gas injection valves, and the development and industry being controlled by others, so as to achieve long service life and sealing effect Good, compact effect

Active Publication Date: 2017-12-12
CHONGQING HONGJIANG MACHINERY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the supporting capacity of gas injection valves in my country is relatively low, and it is heavily dependent on imports, resulting in an unfavorable situation in which research and development and industry are seriously controlled by others. A series of products with independent intellectual property rights is very necessary and important

Method used

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  • Electric control gas injection valve for engine
  • Electric control gas injection valve for engine
  • Electric control gas injection valve for engine

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Embodiment Construction

[0023] The present technology will be described below in conjunction with the accompanying drawings.

[0024] The electronically controlled gas injection valve is mainly designed for a gas fuel engine or a dual fuel engine with a single cylinder power of 100kW-350kW and multi-point injection. When fully opened, the flow area is 240mm 2 ~260mm 2 , Lift 1.2mm ~ 1.4mm, the maximum intake pressure can reach 8bar, and can withstand the maximum pressure difference between the inlet and outlet of 3bar. According to the pressure difference between the inlet and outlet, the flow rate can be adjusted in the range of 0-200g / s, and it can operate normally in the environment of -20℃~105℃.

[0025] join Figure 1a and Figure 1b , The gas injection valve is composed of the upper cover assembly 1, the gas outlet valve core assembly 3, the filter screen assembly 2 and the valve housing 4 and other parts. It adopts an electric control system to drive the solenoid valve to realize the openin...

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PUM

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Abstract

An electric control gas injection valve for an engine comprises a valve shell, a gas outlet valve element assembly and an upper cover assembly. An inner cavity of the valve shell is divided into a gas inlet chamber, a gas high-pressure work chamber and a gas low-pressure gas outlet chamber. The gas outlet valve element assembly comprises a motion disc, a gas outlet valve element and a gasket. The upper cover assembly comprises an upper cover, an electromagnetic valve, a stop bushing and a spring. The valve opening function is achieved in the manner of driving an armature through the high-speed strong electromagnetic valve. When the electromagnetic valve is powered on, a motion disc assembly bears strong electromagnetic force and lifts rapidly, and the valve is opened to provide gas for the engine. When the electromagnetic valve is powered off, the motion disc assembly rapidly falls back under the action of pre-tightening force of the spring, and the sealing effect is good by combining the pressure difference generated by high-pressure gas on a boss.

Description

technical field [0001] The invention belongs to the technical field of diesel engines, and in particular relates to gas injection valves. Background technique [0002] With the increasingly stringent emission regulations of ships and the rising fuel prices, gas engines and dual-fuel engines are becoming more and more important in the international market. As a key component of gas engines and dual-fuel engines, the fuel injection system's performance directly affects the power and emissions of the engine. The gas injection valve is one of the core components of gas fuel electronically controlled multi-point injection gas engines (including dual-fuel engines). Engine power and emissions have a very important impact. [0003] At present, the supporting capacity of gas injection valves in my country is relatively low, and it is heavily dependent on imports, resulting in an unfavorable situation in which research and development and industry are seriously controlled by others....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M21/02F02M51/06
CPCY02T10/30
Inventor 谢远文肖朝南商荣凯郑石兵张红光冉启燕
Owner CHONGQING HONGJIANG MACHINERY CO LTD
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