A gas injection device

An injection device and gas technology, which is applied to the oil supply device, charging system, combustion engine, etc., can solve the problems of slow transient response speed of the engine, flashback and explosion of the intake pipe, uneven operation of each cylinder, etc. Risk of fire explosion, increase in service life, effect of compensating for poor responsiveness

Active Publication Date: 2019-01-11
广西玉柴船电动力有限公司
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AI Technical Summary

Problems solved by technology

[0007] The technical route of multi-point injection of the existing branch pipe intake gas is injected into the intake manifold. Since there is still a certain distance between the manifold and the air passage in the cylinder head, when the engine load changes rapidly, the transient response speed of the engine will be reduced. Second, due to the gas residue in the intake manifold, the residual gas will enter the next cylinder with the air during the valve overlap period, which causes uneven work of each cylinder; finally, the residual gas in the intake manifold still exists Risk of tracheal flashback explosion

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  • A gas injection device
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Embodiment Construction

[0024] 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.

[0025] The specific embodiment of the present invention is like this: as Figure 1-2 As shown, a gas injection device includes a common rail pipe body 1 with a gas channel 19 inside. One side of the common rail pipe body 1 is protruded with a plurality of gas inlets and inlet ports on the cylinder head. Each transition tube seat 2 connected to each gas outlet on the gas manifold, each transition tube seat 2 is provided with an outwardly protruding gas injection pipe 3 connecting the gas channel 19 with the cylinder head intake channel, and the gas injection system device Installed between the intake manifold and the cylinder head, where one end of the transition pipe seat 2 of the common rail pipe body 1 is connected t...

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Abstract

The invention discloses a fuel gas jetting device. The device comprises a shared-rail pipe body of which the interior is hollow, one side of the shared-rail pipe body is provided with multiple transition pipe bases making all air inlets in an air cylinder cover and all air outlets in an intake manifold communicated respectively in a protrusion mode, each transition pipe base is provided with a gas ejector pipe which is protruded outside and communicate the inner cavity of the shared-rail pipe body with an air inlet channel of the air cylinder cover, an accommodating cavity which extends in the lengthwise direction of the pipe body and can be sealed is formed in the other side of the shared-rail pipe body in an inward-sunken mode, exhaust ends communicated with the inner cavity of the shared-rail pipe body and multiple jetting metering valves making the gas ejector pipes and the inner cavity of the shared-rail pipe body communicated respectively, and a double-layer venting structure and an anti-leaking fuel gas structure are arranged on the shared-rail pipe body. The fuel gas jetting device can effectively prevent fuel gas from leaking into an engine room, which makes fuel gas combustion safe and reliable.

Description

technical field [0001] The invention relates to the field of internal combustion engines, more specifically, it relates to a gas injection device. Background technique [0002] With the gradual implementation of my country's energy structure adjustment and energy conservation and emission reduction strategies, natural gas engines have begun to be used more and more in inland waterway ships. However, due to the lagging progress in the construction of infrastructure such as inland gas filling stations, and the incompleteness of relevant technical specifications and management specifications, it is difficult to promote single-fuel gas engines for a period of time. As a transitional power, the dual-fuel gas engine has a positive role in promoting the exploration and development of the application of natural gas in the water transportation industry. The dual-fuel gas engine can be completed by adding gas supply devices, gas injection devices, and gas control parts to existing fue...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): F02M21/02
CPCF02M21/0245F02M21/0248Y02T10/30
Inventor曾志龙刘宁毛平安金伟蔡晓霞曾敏陈土润
Owner广西玉柴船电动力有限公司