The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 02, 2007
Filed:
Mar. 08, 2006
Satoshi Sugimoto, Sakai, JP;
Masahiro Aketa, Sakai, JP;
Tetsuya Kosaka, Sakai, JP;
Yukimasa Kabe, Sakai, JP;
Shuichi Yamada, Sakai, JP;
Satoshi Sugimoto, Sakai, JP;
Masahiro Aketa, Sakai, JP;
Tetsuya Kosaka, Sakai, JP;
Yukimasa Kabe, Sakai, JP;
Shuichi Yamada, Sakai, JP;
Kubota Corporation, Osaka, JP;
Abstract
The present invention provides a multi-cylinder engine capable of inhibiting an EGR cooler from being damaged and at the same time making the EGR cooler compact. On the assumption that a direction where a crank shaft spans is taken as a front and rear direction and a widthwise direction of a cylinder head perpendicular to this front and rear direction is deemed as a lateral direction, an intake-air distributing passage wall is attached to one lateral side surface of the cylinder head and an exhaust-gas converging passage wall ached to the other lateral side of the cylinder head, the exhaust-gas converging passage wall having an interior area communicated with an interior area of the intake-air distributing passage wall through the EGR cooler. In this multi-cylinder engine, an intake-air inlet pipe is made to stand up at an upper portion of the intake air distributing passage wall and the EGR cooler is above the intake-air distributing passage wall. Further, the intake-air inlet pipe is arranged side by side with the EGR cooler.