Active desorption device for fuel oil system and automobile

Abstract

The invention discloses an active desorption device for a fuel oil system and an automobile, and relates to the field of automobile fuel oil systems. The active desorption device comprises a fuel oil steam absorption pipeline and a fuel oil steam supply pipeline, and the fuel oil steam absorption pipeline is located between a brake vacuum pump of the automobile and a fuel oil desorption pipeline, and enables the brake vacuum pump of the automobile to be connected with the fuel oil desorption pipeline; the fuel oil steam supply pipeline is located between the brake vacuum pump of the automobile and an engine and enables the brake vacuum pump of the automobile to be connected with the engine; and the brake vacuum pump actively absorbs fuel oil steam in the fuel oil desorption pipeline through the fuel oil steam absorption pipeline and conveys the fuel oil steam actively absorbed from the fuel oil desorption pipeline into the engine through the fuel oil steam supply pipeline. By means of the active desorption device, the fuel oil steam desorption cost can be effectively saved, the automobile manufacturing cost is reduced, and the automobile driving experience is guaranteed.

Description

technical field [0001] The invention relates to the field of vehicle fuel systems, in particular to an active desorption device for a fuel system and an automobile. Background technique [0002] In hybrid and extended-range models, in order to reduce the fuel consumption of the vehicle, the engine usually does not start all the way, so that the solenoid valve of the engine carbon tank cannot be opened in real time, resulting in the fuel vapor stored in the carbon tank in the fuel system not being able to be released in a timely and effective manner. Enter the engine to participate in combustion; at the same time, when the engine is started, the carbon canister solenoid valve is opened. Considering the fuel consumption of the whole vehicle, the negative pressure in the engine intake manifold is small and the pressure difference in the intake hose is small. In this case, the fuel vapor Neither natural suction nor high-pressure desorption can fully and effectively enter the eng...

AI Technical Summary

Problems solved by technology

However, in this way of setting the active desorption pump, when the active desorption pump is working, it blows air into the interior of the vehicle, which makes a lot of noise, and the noise can be transmitted to the cab through the vehicle floor, affecting the driving experience of the vehicle, and the active desorption pump Generally imported products, the price is high, resulting in an increase in the manufacturing cost of the vehicle

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