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Multi-point injection intake pipe of gas engine

A gas engine and intake pipe technology, which is applied to combustion engines, internal combustion piston engines, engine components, etc., can solve the problems of difficulty in extending the nozzle, inability to install, and delayed gas injection, so as to reduce the risk of fire and explosion, installation and maintenance. handy effect

Active Publication Date: 2015-01-21
广西玉柴船电动力有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But, for above-mentioned two kinds of multi-point injection systems, the biggest shortcoming of the first scheme is that nozzle pipe installation is difficult, can only slowly stretch into from the outside of intake pipe, and the length of nozzle pipe is severely restricted (length is too long and can't be installed)
For the second method, due to the limitation of the intake pipe structure, it is difficult for the nozzle to penetrate deep into the air passage of the cylinder head, resulting in gas injection delay and slow engine response
In addition, the arrangement of the nozzle will disturb the air intake flow, affecting the air flow rate and intake quality

Method used

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Embodiment Construction

[0026] 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.

[0027] 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.

[0028] Such as image 3 and Figure 4 As shown, a gas engine multi-point injection intake pipe according to a specific embodiment of the present invention includes an intake pipe body 1, which has an intake manifold 11 that can be connected to the intake port of the gas engine cylinder head, and the intake air A gas channel 12 is integrally cast on the inner side of the bottom pipe wall of the manifold 11, the outlet 121 ...

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Abstract

The invention discloses a multi-point injection intake pipe of a gas engine. The multi-point injection intake pipe of the gas engine comprises an intake pipe body and a fuel gas spraying pipe. The intake pipe body is provided with an intake manifold which can be communicated with an intake channel of a cylinder cover of the gas engine. A fuel gas channel is integrally cast on the inner side of the bottom pipe wall of the intake manifold. The outlet of the fuel gas channel is located in the intake manifold. The inlet of the fuel gas channel is used for being connected with a fuel gas control valve of the gas engine. One end of the fuel gas spraying pipe is connected with the outlet of the fuel gas channel, and the other end of the fuel gas spraying pipe is used for stretching into the intake channel of the cylinder cover of the gas engine. According to the multi-point injection intake pipe of the gas engine, fuel gas can be directly sprayed into the gas channels of all cylinders, the amount of residual fuel gas in an intake main pipe can be reduced to the maximum extent, generation of flame back and explosion is avoided, and the operation safety of the gas engine is improved greatly.

Description

technical field [0001] The invention relates to the field of gas engines, in particular to a multi-point injection intake pipe of a gas engine. Background technique [0002] With the adjustment of the energy structure of the country's "oil to gas" and the vigorous promotion of new technologies for energy saving and emission reduction, the research and development and application of gas engines have attracted more and more attention and attention. Gas intake schemes for gas engines are usually divided into premixed (single-point injection) and direct-injection (multi-point injection). The single-point injection system is widely used in engine "oil to gas" transformation due to its convenient layout and easy transformation. However, since the single-point injection system is mixed in the intake manifold, there is a risk of the intake manifold catching fire and exploding, especially for large-displacement engines, and the explosion of the intake manifold will cause irreparable...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M35/104F02M21/02
CPCY02T10/30
Inventor 邓亚鹏曾志龙李佑长蔡晓霞
Owner 广西玉柴船电动力有限公司
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