Fuel evaporation control system of turbocharger

A turbocharger and control system technology, applied in the direction of engine control, fuel injection control, charging system, etc., can solve the problem of low vacuum in the intake manifold, failure to meet the requirements of emission regulations, and failure to normally realize fuel vapor removal. Attach functions and other issues to achieve reasonable design and good effect

Inactive Publication Date: 2017-07-21
CHERY AUTOMOBILE CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Automobile emission regulations are becoming more and more stringent, and the existing fuel evaporation system can no longer meet the increasingly stringent regulatory requirements. At the same time, the application of small turbocharged engines leads to a very low pressure vacuum in the intake manifold, which cannot normally achieve fuel vapor. The desorption function, if the desorption is not clean, the fuel vapor will be discharged into the atmosphere, which cannot meet the requirements of emission regulations

Method used

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  • Fuel evaporation control system of turbocharger

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Embodiment Construction

[0020] The specific implementation manner of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings.

[0021] Such as figure 1 As shown, the fuel evaporation control system of the turbocharger includes a fuel tank 1, an activated carbon canister 7, an engine 20, a turbocharger 18, an intake system 12, an air filter 13 and an exhaust system, wherein the fuel tank A fuel pump 4 is arranged in the middle, and the outlet of the fuel pump 4 is connected with the oil rail injector 21 in the engine through the oil inlet pipe 23, and the air filter and the turbocharger are connected through the intake hose 14, and the turbocharger is set On the exhaust system 19 of the engine, the exhaust pipe 22 of the exhaust system is provided with a catalytic converter 17, the turbocharger is connected to the engine through the intake manifold, and the intake hose is provided with a throttle valve 15 , the desorpti...

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Abstract

The invention discloses a fuel evaporation control system of a turbocharger. The fuel evaporation control system of the turbocharger comprises an oil tank, an activated carbon tank, an engine, a turbocharger body and an air filter. The oil tank and the engine are connected through an oil inlet pipe. The air filter and the turbocharger body are connected through an air inlet hose. The turbocharger body and the engine are connected through an intake manifold. The air inlet hose is provided with a throttle valve. A desorption port of the activated carbon tank is connected with an air inlet hose section between the throttle valve and the turbocharger body through a fuel steam desorption pipe. Through the application of a throttle valve body capable of controlling the air suction flow, vacuum is provided for fuel steam desorption, the fuel steam desorption effect is good, fuel steam is sucked into the engine to be combusted, and exhausting of fuel steam into the atmosphere due to incomplete desorption is avoided.

Description

technical field [0001] The invention relates to the technical field of engine intake control, in particular to a control system for introducing fuel vapor of a turbocharger into an engine intake system. Background technique [0002] Automobile emission regulations are becoming more and more stringent, and the existing fuel evaporation system can no longer meet the increasingly stringent regulatory requirements. At the same time, the application of small turbocharged engines leads to a very low pressure vacuum in the intake manifold, which cannot normally achieve fuel vapor. If the desorption is not clean, the fuel vapor will be discharged into the atmosphere, which cannot meet the requirements of emission regulations. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a fuel evaporation control system for a turbocharger, so as to achieve the purpose of desorbing fuel vapo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M25/08F02D41/00F02B39/00F02B39/16
CPCF02B39/00F02B39/16F02D41/003F02M25/08F02M25/0836Y02T10/40
Inventor 李双燕
Owner CHERY AUTOMOBILE CO LTD
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