hc adsorption device

An adsorption device and power device technology, applied in the direction of charging system, fuel air filter, combustion air/combustion-air treatment, etc., can solve the problem of increasing intake resistance, increasing intake system intake resistance, adsorption Low efficiency and other problems to achieve the effect of avoiding air intake resistance, ensuring the use effect, and good use effect
CN107435603BActive Publication Date: 2019-12-17GREAT WALL MOTOR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GREAT WALL MOTOR CO LTD
Publication Date
2019-12-17

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Abstract

The invention provides an HC adsorption device which is arranged on an air inlet pipeline of a vehicle air intake system in a matched mode. The HC adsorption device comprises a blocking part matched with the air inlet pipeline and a driving mechanism, and the driving mechanism is fixedly arranged relative to a vehicle and is in driving connection with the blocking part. The blocking part is provided with a blocking surface with the area not less than the cross sectional area of the air inlet pipeline. When the engine operates, the blocking part is driven by the driving mechanism to completely open the air inlet pipeline so as to enable air flow to go into an opening state without blockage. When the engine stops operating, the blocking part is driven by the driving mechanism to enable the air inlet pipeline to be blocked through the blocking surface in a closed state. The HC adsorption device cannot affect air intake of the air intake system, can prevent hydrocarbon from being evaporated outwards when the engine stops, can avoid the defects of increased air intake resistance, poor control effect and the like existing in an existing adsorption structure and accordingly has a good using effect.
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Description

technical field

[0001] The invention relates to the technical field of automotive air intake system components, in particular to an HC adsorption device. Background technique

[0002] With the increasing requirements of vehicle emission regulations, controlling the amount of hydrocarbons (HC) evaporated from the intake system when the vehicle is stopped has become an important research topic for various vehicle manufacturers. At present, the control of the evaporation of hydrocarbons in the intake system is mainly realized by means of adsorption, and the arrangement of the adsorption structure in the intake system mainly includes three types: filter element type, pipe insertion type and inner wall type. Although the above-mentioned adsorption structures can achieve the purpose of reducing the discharge of hydrocarbons, the filter element structure will increase the intake resistance of the intake system during use, and the insertion pipe type also has the problem of increasi...

Claims

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