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:
Mar. 25, 2014
Filed:
Dec. 22, 2008
Kenichi Ogasawara, Oyama, JP;
Kazuhiro Maruta, Kawaguchi, JP;
Mutsumi Ono, Oyama, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
A hydraulic motorof the invention includes a detected unitformed on an outer circumferential surface of a cylinder blockand a rotation sensorarranged opposed to the detected unitfor detecting the detected unit. The rotation sensoris provided on a position corresponding to a position between a deepest portionof a cylinder holeand a rear end faceof the cylinder block in an axial direction of the cylinder block. A fan driving deviceis provided with the hydraulic motor, a bracketto which the hydraulic motor is attached in a state in which a tip end of the rotational shaftis arranged on a surface side thereof through a through-holeand a fanattached to the rotational shaftand is driven by the hydraulic motor.