Title:
多気筒エンジンの排気還流装置
Document Type and Number:
Japanese Patent JP5891942
Kind Code:
B2
Abstract:
An exhaust gas recirculation device is provided. The device recirculates, from an exhaust system to an intake system, a part of exhaust gas from a plurality of cylinders of a multi-cylinder engine as EGR gas. The device includes a single EGR pipe extending from the exhaust system toward the intake system, an EGR manifold branching from a downstream end portion of the EGR pipe toward each cylinder, and an EGR valve for adjusting an EGR gas amount. The EGR manifold has one or more common EGR passages having a single pipe portion and branched pipe portions, and one or more independent EGR passages. Each shape of the common and independent EGR passages is set so that a communicating path in the EGR manifold communicating an arbitrary cylinder with a cylinder where combustion is performed subsequently thereto has the same volume for any cylinder combination having the adjacent combustion order.
Inventors:
Tatsuya Koga
Application Number:
JP2012114629A
Publication Date:
March 23, 2016
Filing Date:
May 18, 2012
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02M26/17; F02B23/10; F02M26/00
Domestic Patent References:
| JP6108928A | ||||
| JP2005083312A | ||||
| JP2000008968A | ||||
| JP8232734A |
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Ko Sato
Masataka Otani
Ko Sato
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