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.

Date of Patent:
Aug. 20, 1991

Filed:

Aug. 03, 1990
Applicant:
Inventors:

Junichi Okita, Iwakuni, JP;

Ryoji Abe, Hiroshima, JP;

Masakazu Tokuyama, Hiroshima, JP;

Assignee:

Mazda Motor Corporation, Hiroshima, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01P / ;
U.S. Cl.
CPC ...
123 4146 ; 123 4144 ;
Abstract

A cooling apparatus for a V-type internal combustion engine has a water pump disposed at a central portion of a front end surface of an engine cylinder block. A cooling water inlet passage, provided between the radiator and water pump for introducing cooling water into the water pump, includes an external pipe extending along the front end of the engine cylinder block and turning into a V-shaped space defined by and between elongated first and second cylinder banks set at an angle relative to each other and an internal passageway formed in the cylinder block. The internal passageway has one end communicated with the water pump and its other end opening to the bottom of the V-shaped space and connected to the external pipe.


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