Carbon canister desorption heat addition device, carbon canister desorption system, vehicle and carbon canister desorption method

Abstract

The invention discloses a carbon tank desorption heating device. The carbon tank desorption heating device comprises an air inlet heater (11), a control valve (13), and a pipeline connector (14), wherein the air inlet heater (11) is provided with an air inlet (15) and an air outlet (16), the pipeline connector (14) at least comprises a first port (141), a second port (142), and an atmosphere communicating port, the air outlet (16) of the air inlet heater (11) is connected with a first valve port of the control valve (13), a second valve port of the control valve (13) is connected to the first port (141) of the pipeline connector (14), and the control valve (13) is controlled to communicate or cut off the first valve port and the second valve port. After the carbon tank desorption heating device is installed onto a carbon tank, fuel molecules in the carbon tank can be fully desorbed when carbon tank desorption is performed, so that activities of activated carbon are improved, and service life of the carbon tank is prolonged.

Description

technical field [0001] The invention relates to the technical field of carbon canister desorption, in particular, to a carbon canister desorption and additional heating device. In addition, the present invention also relates to a carbon canister desorption system and a vehicle comprising the above-mentioned canister desorption and heating device. In addition, the present invention further provides a carbon canister desorption method. Background technique [0002] In the prior art, the carbon canister generally includes an adsorption port, a desorption port and an air vent, the adsorption port communicates with the fuel tank, the desorption port is connected to the intake manifold of the engine, and the connection between the desorption port and the intake manifold is The communication between them is controlled by the carbon canister solenoid valve, and the air port makes the interior of the carbon canister communicate with the atmosphere, and the gasoline vapor in the fuel...

AI Technical Summary

Problems solved by technology

It can be seen that the carbon canister adsorption process can only be performed when the carbon canister solenoid valve is turned on, but the carbon canister adsorption is always happening

[0003] Usually, the higher the temperature of the carbon canister desorption, the more conducive to the volatilization of fuel molecules. The desorption of the carbon canister in the prior art is carried out at ambient temperature, and the desorption effect is limited by the fact that the ambient temperature cannot reach the ideal state. The fuel molecules adsorbed on the activated carbon cannot be fully desorbed. If things go on like this, some fuel molecules will permanently occupy the pores of the activated carbon, thereby reducing the adsorption capacity of the activated carbon, and the activity of the activated carbon is thus reduced. Therefore, when the carbon tank is saturated, the fuel molecules are easy to overflow. cause air pollution

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