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High-pressure common rail pipe and high-pressure common rail system

A high-pressure common rail system and high-pressure common rail technology, applied in the field of common rail, can solve problems such as poor working stability, high price, and small volume, and achieve the effects of high pressure resistance, stable working performance, and large volume

Inactive Publication Date: 2020-03-17
泰安军辉汽车维修设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the high-pressure common rail pipes used in China mainly rely on foreign imports, and the price is relatively high
Moreover, the existing high-pressure common rail pipe has a small volume and poor pressure resistance performance, so the working stability is poor

Method used

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Embodiment Construction

[0008] 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 embodiments and accompanying drawings.

[0009] In the embodiment of the present invention, the test bench mainly includes: fuel tank and internal accessories of the fuel tank (including heater, temperature sensor, liquid level sensor), refrigerator, drive motor, high-pressure common rail system (including common rail pump and connectors, high-pressure common rail pipe, ECU control system, common rail injector) filter, pressure sensor, and HPV regulator valve. Wherein, the common rail pump may be a CP4 common rail pump.

[0010] The working principle of the test bench includes: heating the fuel, the temperature is fed back through the temperature sensor in the fuel tank, and cooperates with the refrigerator to control the temperature within the range of 40±2°C. If the temperature exceeds ...

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Abstract

The invention discloses a high-pressure common rail pipe and a high-pressure common rail system. The high-pressure common rail pipe comprises a high-pressure volume cavity and a sealing ring, whereinthe volume of the high-pressure volume cavity is 150-2000 ml, and the sealing ring adopts a flexible seal mode. By means of the scheme, the high-pressure common rail pipe and the high-pressure commonrail system provided by the invention have larger volume, higher pressure resistance and more stable working performance.

Description

technical field [0001] The invention relates to the technical field of common rail, in particular to a high-pressure common-rail pipe and a high-pressure common-rail system. Background technique [0002] The high-pressure common rail system is a set of fuel injection system developed to achieve energy saving, emission reduction and efficiency improvement, among which the high-pressure common rail pipe is an important part of the system. At present, the high-pressure common rail pipes used in China mainly rely on foreign imports, and the price is relatively high. Moreover, the volume of the existing high-pressure common rail pipe is small, and the pressure resistance performance is poor, so the working stability is poor. Contents of the invention [0003] The invention provides a high-pressure common rail pipe and a high-pressure common rail system, which have higher pressure resistance, larger volume and more stable performance. [0004] A high-pressure common rail pipe ...

Claims

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Application Information

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IPC IPC(8): F02M55/02F02M55/00
CPCF02M55/005F02M55/025
Inventor 刘锋
Owner 泰安军辉汽车维修设备有限公司
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