Title:
ＥＧＲ付エンジン
Document Type and Number:
Japanese Patent JP6839646
Kind Code:
B2
Abstract:
To provide an EGR-equipped engine in which a structure of an engine case, an arrangement of an EGR pipe, and the like are comprehensively reviewed and devised to make the EGR pipe cooled more easily and enable suppressing an increase of an engine length.SOLUTION: In an EGR-equipped engine, an EGR pipe 6 for introducing EGR gas g into an intake path 5 is arranged through an engine case k with the EGR pipe 6 facing a cooling water passage w within the engine case k, and a cooling enhancement means D constituted by increasing circumferential length or surface area of the EGR pipe 6 is provided. The cooling enhancement means D is constituted by employing an irregular shape pipe 8A in the EGR pipe 6.SELECTED DRAWING: Figure 1
Inventors:
Nohwa Takemoto
Hideyuki Goto
Takato Hamasaki
Kentaro Nagai
Tomoya Akihasa
Kumiko Sakaguchi
Hideyuki Goto
Takato Hamasaki
Kentaro Nagai
Tomoya Akihasa
Kumiko Sakaguchi
Application Number:
JP2017254890A
Publication Date:
March 10, 2021
Filing Date:
December 28, 2017
Export Citation:
Assignee:
Kubota Corporation
International Classes:
F02M26/41; F02M35/10
Domestic Patent References:
| JP2017008923A | ||||
| JP2011252441A | ||||
| JP2000161871A | ||||
| JP2000265908A | ||||
| JP2004346919A | ||||
| JP10002256A | ||||
| JP2014043772A | ||||
| JP2000345926A |
Foreign References:
| KR1020070065054A |
Attorney, Agent or Firm:
Shoji Suzue