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Gas injection device for automobile

A technology for injection devices and automobiles, which is applied in the direction of oil supply devices, charging systems, combustion engines, etc. It can solve the problems that affect the normal use of the gas system, the difficulty of opening the gas injection rail, and increase the difficulty of maintenance, so as to reduce heat dissipation. , Stable placement and low heating cost

Inactive Publication Date: 2016-05-25
CHENGDU DUJIA ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The gas injection rail is a necessary equipment on CNG-gasoline dual-fuel vehicles, but when the temperature is low, the low temperature causes the gas in the low-pressure pipeline to shrink, forming a negative pressure between the gas common rail and the filter, so that the gas injection rail opens It is not easy and affects the normal use of the gas system; we use water heating to heat the gas injection rail to make it work normally, but it is necessary to install a waterway, which increases pipeline interference, is prone to liquid leakage, and increases the difficulty of maintenance

Method used

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Embodiment 1

[0027] Such as Figure 1~Figure 5As shown, this embodiment includes an air intake pipe 1 and a hollow pipe 2 communicating with it. A plurality of injection holes 3 are opened on the upper end of the hollow pipe 2, and a solenoid valve 6 is correspondingly installed on the injection holes 3. The inner wall of the hollow tube 2 is provided with a groove 4 with a superior arc in section, and the injection hole 3 is facing the arc bottom of the groove 4, and a plurality of electric heating tubes 7 are installed in the groove 4, A guide block 13 is installed at the bottom of the electric heating tube 7, and a guide groove matched with the guide block 13 is opened at the bottom of the groove 4. The electric heating tube 7 includes a tube body 10, an insulating material 11 filled inside the tube body 10, and a The heating wire 12 inside the pipe body 10, the end of the heating wire 12 is connected with a terminal 15, the end of the groove 4 away from the intake pipe 1 has a small ho...

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Abstract

The invention discloses a gas injection device for an automobile. The gas injection device comprises a gas inlet pipe and a hollow pipe, wherein a groove of which the section is a major arc is formed in the inner wall of the hollow pipe; injection holes are just opposite to the arc bottom of the groove; a plurality of electric heating tubes are arranged in the groove; a guide block is arranged at the bottoms of the electric heating tubes; a guide groove matched with the guide block is formed in the bottom of the groove; each electric heating tube comprises a tube body, an insulated material filling the inside of the tube body and an electric heating wire arranged inside the tube body; a binding post is connected to the tail end of each electric heating wire, penetrates through a small hole and is connected with a wiring plug board; a heat conducting board covers the opening end of the groove. The plurality of electric heating tubes are arranged in the arc groove; the side end of the groove is sealed by the wiring plug board, so that the heat dissipation can be reduced; meanwhile, the electric hating tubes are favorably taken and placed, i.e., a user can determine the number of the electric heating tubes in real time according to the supply amount of gas, so that stable operation for gas output flow is finished at the minimum heating cost.

Description

technical field [0001] The invention relates to a gas injection rail, in particular to a gas injection device for automobiles. Background technique [0002] The gas injection rail is a necessary equipment on CNG-gasoline dual-fuel vehicles, but when the temperature is low, the low temperature causes the gas in the low-pressure pipeline to shrink, forming a negative pressure between the gas common rail and the filter, so that the gas injection rail opens It is not easy and affects the normal use of the gas system; we use water heating to heat the gas injection rail to make it work normally, but it is necessary to install a waterway, which increases pipeline interference, is prone to liquid leakage, and increases the difficulty of maintenance. Contents of the invention [0003] The purpose of the present invention is to provide a gas injection device for automobiles, which can ensure the normal passage of gas and avoid liquid in the gas pipeline. [0004] The object of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M21/06F02M21/02
CPCF02M21/0203F02M21/0218F02M21/023F02M21/06Y02T10/30
Inventor 谢成忠
Owner CHENGDU DUJIA ELECTRICAL
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