Title:
EVAPORATION GAS PURGE CONTROL DEVICE AND METHOD FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2018/182247
Kind Code:
A1
Abstract:
The present invention relates to an evaporation gas purge control device and method for an internal combustion engine, the device comprising: a turbocharger including a turbine rotated by exhaust gas discharged from an engine, and a compressor rotated by the turbine so as to compress intake gas to be supplied to the engine; a canister for collecting evaporation gas generated in a fuel tank; a canister purge valve for switching the flow of evaporation gas collected in the canister to any one of an intake manifold of the engine and the front end of the compressor so as to purge the evaporation gas; a differential pressure generation valve for generating differential pressure between the pressure of the front end of the compressor and atmospheric pressure; and a control unit for controlling a switching operation of the canister purge valve depending on whether an exhaust gas recirculation (EGR) mode for recirculating exhaust gas is activated, and whether the differential pressure generation valve is operated, so as to perform control such that evaporation gas collected in the canister is purged through any one of the intake manifold and the front end of the compressor.
Inventors:
PARK HAN YONG (KR)
LIM JONG SUK (KR)
KIM DO WAN (KR)
LIM JONG SUK (KR)
KIM DO WAN (KR)
Application Number:
PCT/KR2018/003481
Publication Date:
October 04, 2018
Filing Date:
March 23, 2018
Export Citation:
Assignee:
CONTINENTAL AUTOMOTIVE SYS CORP (KR)
International Classes:
F02D41/00; F02M25/08
Foreign References:
| JP2017031936A | 2017-02-09 | |||
| JP2007315371A | 2007-12-06 | |||
| JP2012184755A | 2012-09-27 | |||
| KR970035645U | 1997-07-26 | |||
| KR19980036338U | 1998-09-15 |
Attorney, Agent or Firm:
AJU KIM CHANG & LEE (KR)
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