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Fuel gas supply device of gas engine

A gas engine and gas supply device technology, which is applied to oil supply devices, engine components, combustion engines, etc., can solve problems such as difficult engine air-fuel ratio, inability to accurately control fuel supply, and inability to give full play to the emission performance of natural gas engines, etc. To achieve the effect of promoting combustion and improving efficiency

Inactive Publication Date: 2017-08-18
GUANGXI YUCHAI MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the inability to accurately control the fuel supply and the inability to perform closed-loop control, it is difficult to accurately control the air-fuel ratio of the engine, thus meeting higher emission standards and failing to fully utilize the potential of natural gas to improve engine emission performance

Method used

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  • Fuel gas supply device of gas engine

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Embodiment Construction

[0012] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0013] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0014] like figure 1 As shown, a gas supply device for a gas engine according to a specific embodiment of the present invention includes a mixer 16, a gas inlet pipe (see figure 1 Mark 1 and mark 4) and the injection metering valve 3, wherein one end of the mixer 16 is provided with a first connecting flange 14, the first connecting flange 14 is used to connect with the filter pipe 11, the mixer The other end of 16 is pro...

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Abstract

The invention discloses a fuel gas supply device of a gas engine. The fuel gas supply device comprises a mixer, fuel gas inlet pipes and an injection metering valve. One end of the mixer is provided with a first connecting flange plate which is used for being connected with a filter connecting pipe. The other end of the mixer is provided with a connecting part. The connecting part comprises a second connecting flange plate and a connecting pipe welded to the second connecting flange plate. The connecting pipe is used for being connected with a booster. The first connecting flange plate and the second connecting flange plate are connected to the two ends of the mixer through a double-end stud in a butting mode. The sidewall of the mixer is provided with a flange connector. One fuel gas inlet pipe is connected with the flange connector. The injection metering valve is connected into the fuel gas inlet pipe. The fuel gas supply device can accurately control the input quantity of fuel gas so as to enable the engine to reach up to a reasonable air-fuel ratio, promote combustion and improve the engine efficiency.

Description

technical field [0001] The invention relates to the field of gas engines, in particular to a gas supply device for a gas engine. Background technique [0002] At present, when the form of compressed natural gas and liquefied natural gas is applied to the engine, it has the advantages of small changes to the structure of the internal combustion engine and little change in the working index, and has become an important alternative fuel and has been widely used in the field of internal combustion engines. The existing engine air supply system is generally the air intake pipe mixer air supply mode, the structure is relatively simple, the control is convenient, the price is low, and it is convenient to modify the existing carburetor type gasoline engine. However, due to the inability to accurately control the fuel supply and the inability to perform closed-loop control, it is difficult to accurately control the air-fuel ratio of the engine, thus meeting higher emission standards ...

Claims

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Application Information

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IPC IPC(8): F02M21/02F02M21/04
CPCF02M21/0215F02M21/0218F02M21/023F02M21/04Y02T10/30
Inventor 黄第云
Owner GUANGXI YUCHAI MASCH CO LTD
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