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Title:
内燃機関の吸気装置
Document Type and Number:
Japanese Patent JP4974994
Kind Code:
B2
Abstract:

To provide an intake device for an internal combustion engine, suppressing deterioration of a combustion state caused by exhaust gas recirculated to an intake pipe.

This intake device for the internal combustion engine includes a tumble control valve (TCV) 23 controlling an intake flow in the internal combustion engine provided with an EGR device 40 recirculating a part of the exhaust gas, arranged in an intake pipe 21, and adjusting the intake flow, and a control device 50 controlling the TCV 23. The TCV 23 has a valve end portion 23T as a part thereof positioned closest to the introducing portion 44 of the EGR pipe 41 with respect to the intake pipe 21 when the TCV is in a predetermined opening, thereby forming a portion provided to the portion of the introducing portion 44 on the side of an intake passage and having pressure lower than the intake air upstream side and intake air downstream side of the portion thereof. The control device 50 performs separation control so that when a reduction in the amount of EGR gas is requested and the TCV 23 is in the predetermined opening, the TCV 23 is driven in a direction where the valve end portion 23T of the TCV 23 is separated from the introducing portion 44 before the reduction is requested.

COPYRIGHT: (C)2010,JPO&INPIT


Inventors:
Toshiaki Uda
Application Number:
JP2008259525A
Publication Date:
July 11, 2012
Filing Date:
October 06, 2008
Export Citation:
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Assignee:
トヨタ自動車株式会社
株式会社デンソー
International Classes:
F02M25/07; F02B31/00
Domestic Patent References:
JP8319901A
JP2005048716A
JP11002158A
Foreign References:
WO2010071013A1
Attorney, Agent or Firm:
Hironobu Onda
Makoto Onda