COOLING DEVICE FOR WATER-COOLED INTERNAL COMBUSTION ENGINE

Japanese Patent JP3731696

B2

PROBLEM TO BE SOLVED: To reduce required pumping power while shortening a flow passage of a cooling water system and reducing passage resistance, facilitate manufacture and reduce a cost while reducing number of component items and working man-hours.
SOLUTION: A cooling device for a water-cooled internal combustion engine is provided as follows: a cam shaft 18 is arranged on an upper side of a cylinder head 5 for driving a valve system of the internal combustion engine; the cam shaft 18 is rotationally driven by a crank shaft through a transmitting mechanism 23: and a cooling water pump 50 which is rotationally driven by the cam shaft 18 is arranged on an outer side of the transmitting mechanism 23. In such a cooling device, a cooling water passage is lead from the cooling water pump 50 to the internal combustion engine (water jackets 44, 45 formed on cylinder blocks 4, 5), through a passage laid over a transmitting mechanism chamber 62. The transmitting mechanism 23 has an endless structure. A communication pipe 61 composing the passage laid over the transmitting mechanism chamber 62 supports an idle pulley 25 of the endless transmitting mechanism.

Masatoshi Fukamachi
Yoshihisa Kanno

JP21361397A

January 05, 2006

August 07, 1997

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Honda motor industry stock company

F01P5/12; F02B67/06; F01P11/04; F02F7/00; (IPC1-7): F01P5/12; F01P11/04; F02B67/06; F02F7/00

JP7174022A
JP4203325A
JP8260964A
JP60159899U

Nozomi Gangwon
Nakamura Kun
Kuniyoshi Obata

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