Title:
EXHAUST GAS RECIRCULATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/065723
Kind Code:
A1
Abstract:
An exhaust gas recirculation device 80 comprises a plurality of systems of recirculation channels 81 and 82 that branch from an exhaust system of an engine 10 and merge with an intake system of the engine 10, thereby recirculating at least part of exhaust gases to the intake system, wherein, of the plurality of systems of recirculation channels 81 and 82, at least two systems of recirculation channels 81 and 82 are formed with channel lengths that differ from each other, and of the recirculation channels 81 and 82 with different channel lengths, at a predetermined portion of the shorter recirculation channel 81, a reduced-diameter portion 40 that reduces the channel diameter of the shorter recirculation channel 81 is provided.
Inventors:
OKUBO YUKIHIRO (JP)
WAKO EIJI (JP)
YAMANAKA KYOSHIRO (JP)
YAMAMOTO YASUHIRO (JP)
WAKO EIJI (JP)
YAMANAKA KYOSHIRO (JP)
YAMAMOTO YASUHIRO (JP)
Application Number:
PCT/JP2020/036290
Publication Date:
April 08, 2021
Filing Date:
September 25, 2020
Export Citation:
Assignee:
ISUZU MOTORS LTD (JP)
International Classes:
F02M26/05; F02M26/38; F02M26/42
Foreign References:
| JPH11210560A | 1999-08-03 | |||
| JP2016044584A | 2016-04-04 | |||
| JP2006329051A | 2006-12-07 | |||
| JP2000064912A | 2000-03-03 | |||
| JPS54155018U | 1979-10-27 | |||
| JP2000045878A | 2000-02-15 | |||
| JPH07208273A | 1995-08-08 | |||
| US20060021328A1 | 2006-02-02 | |||
| JPH09264202A | 1997-10-07 |
Attorney, Agent or Firm:
HIBIYA Yukihiko et al. (JP)
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