active dual purge system and active dual purge method

The present invention relates to an active dual purge system and an active dual purge method. The active dual purge system comprises: an intake pipe connecting an air cleaner and a surge tank; a compressor which is mounted on the intake pipe and compresses air; a canister which collects evaporation...

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Bibliographic Details
Main Authors OH YOUNG KYU, PARK KEUM JIN, KIM SE GEUN
Format Patent
LanguageEnglish
Korean
Published 11.05.2021
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Summary:The present invention relates to an active dual purge system and an active dual purge method. The active dual purge system comprises: an intake pipe connecting an air cleaner and a surge tank; a compressor which is mounted on the intake pipe and compresses air; a canister which collects evaporation gas evaporated from a fuel tank; a purge line extended from the canister to the front end of the compressor in the intake pipe; a branch line extended from the purge line to the rear end of a throttle valve body provided on the intake pipe; a purge pump mounted on the purge line to be positioned between a branch point of the branch line and the canister; and a purge valve mounted on the purge line to be positioned between the intake pipe and the branch point of the branch line. The flow of evaporation gas flowing into the front end of the compressor can be actively adjusted through adjustment of opening amounts of the purge valve, a first valve, a second valve, and a differential pressure generation valve and rotation number adjustment of the purge valve. The flow of evaporation gas flowing into the rear end of the throttle valve body can also be actively adjusted. 본 발명은 액티브 듀얼 퍼지 시스템 및 액티브 듀얼 퍼지 방법에 관한 것으로, 에어클리너와 서지탱크를 연결하는 흡기파이프와, 흡기파이프에 장착되고 공기를 압축하는 컴프레셔와, 연료탱크에서 증발된 증발가스를 포집하는 캐니스터와, 캐니스터로부터 흡기파이프 중 컴프레셔 전단으로 연장된 퍼지라인과, 퍼지라인에서 흡기파이프에 구비된 쓰로틀밸브바디 후단으로 연장된 분기라인과, 캐니스터와 분기라인의 분기지점 사이에 위치하도록 퍼지라인에 장착된 퍼지펌프와, 분기라인의 분기지점과 흡기파이프 사이에 위치하도록 퍼지라인에 장착된 퍼지밸브를 포함하며, 퍼지밸브, 제1밸브, 제2밸브, 차압생성밸브의 개도량 조절 및 퍼지펌프의 회전수 조절을 통해서, 컴프레셔 전단에 유입되는 증발가스의 유량을 능동적으로 조절할 수 있을 뿐만 아니라, 쓰로틀밸브바디 후단으로 유입되는 증발가스의 유량도 능동적으로 조절할 수 있는, 액티브 듀얼 퍼지 시스템 및 액티브 듀얼 퍼지 방법을 제공한다.
Bibliography:Application Number: KR20190138500