Commercial vehicle exhaust brake valve high-temperature durability test device and method

An exhaust brake valve, durability test technology, applied in the direction of mechanical valve testing, etc., can solve the problems of inability to accurately simulate the working conditions and environment, difficult adjustment and control of test conditions, low accuracy of test results, etc., to achieve real-time Detection and control, reduced test cycle, high accuracy effect

Pending Publication Date: 2021-01-05
DONGFENG COMML VEHICLE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The engine provides high-temperature exhaust gas medium and back pressure conditions for the butterfly valve inside the exhaust brake valve body. One engine can only be tested for one exhaust brake valve. The test cost is high, the test period is long, and the test conditions are not easy to adjust and Control, cannot accurately simulate the working conditions and environment in actual use, and the accuracy of the test results is low

Method used

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  • Commercial vehicle exhaust brake valve high-temperature durability test device and method

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention, but they do not limit the present invention.

[0032] Such as figure 1 The high-temperature durability test device for a commercial vehicle exhaust brake valve includes a power control unit and a compressed air heating unit; the power control unit includes a first air source 1, a first pressure reducing valve 2, a first storage Gas tank 3, first pressure gauge 4, solenoid valve 5, first exhaust brake valve 6, second exhaust brake valve 7 and electric control box 18; the first gas source 1, the first pressure reducing valve 2. The first gas storage tank 3, the first pressure gauge 4, and the solenoid valve 5 are sequentially connected. The normally closed position outlet of the solenoid valve 5 is connected to the first exhaust brake valve 6. The outlet of the solenoid valve 5 ...

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Abstract

The invention discloses a commercial vehicle exhaust brake valve high-temperature durability test device and method. The device comprises a power control unit and a compressed air heating unit. The power control unit comprises a first air source, a first pressure reducing valve, a first air storage tank, a first pressure gauge, an electromagnetic valve, a first exhaust brake valve and a second exhaust brake valve; the compressed air heating unit comprises a second air source, a second pressure reducing valve, a second air storage tank, a second pressure gauge, a stop valve, a temperature detection display device, a heat insulation device, a compressed air heater, a high-temperature-resistant temperature detection display device and a high-temperature-resistant air pressure detection display device. The commercial vehicle exhaust brake valve high-temperature durability test device can be controlled and adjusted according to the high-temperature and back-pressure conditions of the exhaust brake valve in the actual vehicle use condition, the work condition and environment of the exhaust brake valve in actual use can be simulated, the product durability can be effectively verified, thetest period can be shortened, and the test cost can be reduced.

Description

technical field [0001] The invention belongs to the technical field of auto parts testing, and in particular relates to a high-temperature durability test device and method for a commercial vehicle exhaust brake valve. Background technique [0002] The exhaust brake valve is assembled between the engine exhaust pipe and the muffler, and it needs to carry the engine on the engine test bench for high temperature durability test. The engine provides high-temperature exhaust gas medium and back pressure conditions for the butterfly valve inside the exhaust brake valve body. One engine can only be tested for one exhaust brake valve. The test cost is high, the test period is long, and the test conditions are not easy to adjust and Control, cannot accurately simulate the working conditions and environment in actual use, and the accuracy of the test results is low. [0003] Therefore, it is necessary to establish a set of test devices and test methods for high-temperature durabilit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/003
CPCG01M13/003
Inventor 万小兵刘超林余谭振王建东
Owner DONGFENG COMML VEHICLE CO LTD
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