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Leakage diagnosis device, oil tank leakage diagnosis system and vehicle

A diagnostic device and chamber technology, applied in the field of leakage diagnosis, can solve problems such as complex structures, and achieve the effect of simplifying structural complexity

Pending Publication Date: 2022-05-13
DATRO AUTO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the fuel tank leakage diagnosis system in the prior art needs to be equipped with a control unit for controlling the air supply valve, and the structure is relatively complicated

Method used

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  • Leakage diagnosis device, oil tank leakage diagnosis system and vehicle
  • Leakage diagnosis device, oil tank leakage diagnosis system and vehicle
  • Leakage diagnosis device, oil tank leakage diagnosis system and vehicle

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Embodiment Construction

[0052] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0053] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.

[0054] It should be understood that "fir...

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PUM

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Abstract

The invention provides a leakage diagnosis device, an oil tank leakage diagnosis system and a vehicle. The leakage diagnostic device includes a body. The body comprises a shell, a first cavity, a gulp valve and a movement mechanism. The shell is provided with a first opening used for being connected with pumping equipment and a second opening used for being connected with equipment to be diagnosed. The first chamber is arranged in the shell and is communicated with the first opening; and the gulp valve is used for communicating the second opening with the atmosphere. The movement mechanism is located in the shell and can move in the shell to control opening and closing of the gulp valve. The oil tank leakage diagnosis system comprises the leakage diagnosis device. The vehicle comprises the fuel tank leakage diagnosis system.

Description

technical field [0001] The present application relates to the technical field of leakage diagnosis, in particular to a leakage diagnosis device, a fuel tank leakage diagnosis system and a vehicle. Background technique [0002] With the improvement of living standards, automobiles have become a common means of transportation. When the fuel tank of a car leaks, the gasoline in the fuel tank volatilizes into the air, causing air pollution, which is not conducive to environmental protection. Therefore, it is necessary to detect whether the fuel tank leaks. [0003] The fuel tank leakage diagnosis system in the prior art includes an air supply valve and a control unit for connecting the fuel tank with the atmosphere, and the closing and opening of the air supply valve is controlled by the control unit. When the control unit controls the air supply valve to open, the air in the atmosphere can enter the fuel tank to balance the pressure inside the fuel tank, and when the control u...

Claims

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Application Information

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IPC IPC(8): G01M3/32B60K15/03
CPCG01M3/3272B60K15/03
Inventor 贾维新
Owner DATRO AUTO TECH CO LTD