Double-medium pressure accumulation device with pressure offset adjusting function

A pressure accumulator and pressure regulation technology, which is applied to fuel injection devices, charging systems, engine components, etc., can solve problems such as high material cost and installation cost, poor fuel stability, and mutual leakage of fuel

Pending Publication Date: 2021-07-30
WUXI WEIFU HIGH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the pipelines used to transport fuel are laid directly, and the interface with the injector needs to be designed according to the product characteristics. The integration of the whole device is low, and the material cost and installation cost are

Method used

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  • Double-medium pressure accumulation device with pressure offset adjusting function
  • Double-medium pressure accumulation device with pressure offset adjusting function
  • Double-medium pressure accumulation device with pressure offset adjusting function

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Embodiment Construction

[0041] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0042] Please refer to the attached figure 1 , the present invention provides a dual-medium pressure accumulator with a pressure bias adjustment function, which includes an integrated accumulator body 1, and the accumulator body 1 is provided with a first accumulator chamber 101 and a second accumulator chamber that are independent of each other. accumulator chamber 102;

[0043] The pressure accumulator body 1 is provided with

[0044] The first medium inlet 104 can communicate with the first pressure storage chamber 101, and is used to introduce the first medium into the first pressure storage ...

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Abstract

The invention provides a double-medium pressure accumulation device with a pressure offset adjusting function. The double-medium pressure accumulation device comprises an integrated pressure accumulator, and a first pressure accumulation cavity and a second pressure accumulation cavity which are independent of each other are formed in the pressure accumulator; the pressure accumulator is provided with a pressure adjusting cavity, a first medium inlet, a first medium injection connector, a second medium inlet and a second medium injection connector; and a pressure adjusting part is arranged in the pressure adjusting cavity, and the pressure adjusting part can move in the pressure adjusting cavity to achieve connection and disconnection between the first pressure accumulation cavity and a first medium pressure relief opening. By adoption of the integrated pressure accumulator, the structural stability and the equipment integration degree are improved, installation is convenient, the material cost and the installation cost are reduced, the pressure adjusting part is used for maintaining the fixed pressure difference between two media, the double-medium pressure accumulation device is suitable for a dual-fuel injection system, and the medium supply stability is improved.

Description

technical field [0001] The invention relates to the technical field of internal combustion engines, in particular to a dual-medium pressure accumulator with pressure bias adjustment function. Background technique [0002] Alternative fuels represented by alcohol ethers and natural gas have occupied a certain market in the domestic automobile consumption market. With the breakthrough of high-pressure direct injection technology, gasoline / diesel is used as auxiliary fuel, and alternative fuels such as methanol and natural gas are used as main combustion fuels. The dual-fuel vehicle ratio will be widely used because of its advantages of high efficiency, cleanliness and reliability. [0003] However, the current status quo is: In vehicles or systems driven by dual fuels, the usual injection methods are: both alternative fuels and traditional fuels are lower than the injection in the intake manifold, such as methanol gasoline dual-fuel vehicles; alternative fuel low-pressure inje...

Claims

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Application Information

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IPC IPC(8): F02M47/02
CPCF02M47/02F02M47/027
Inventor 徐云峰杨涛刘涛冯利军李刚华硕风
Owner WUXI WEIFU HIGH TECH CO LTD
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