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, 2012
Filed:
Jul. 28, 2010
Hideo Misao, Amagasaki, JP;
Hideo Misao, Amagasaki, JP;
Yanmar Co., Ltd., Osaka, JP;
Abstract
An object of the present invention is to provide an outdrive unit that allows space to be saved in the positioning of a hydraulic circuit for trolling, and enables easy maintenance of the hydraulic circuit for trolling. The invention provides an outdrive unit mounted outside of a boat, including: a propeller for propulsion; a hydraulic clutch that controls driving of the propeller; a transmission mechanism that transmits drive power from the hydraulic clutch to the propeller; a hydraulic circuit that operates the hydraulic clutch, the hydraulic circuit comprising a switching valve that switches a rotational direction of the propeller, a pressure-reducing valve for trolling that reduces a pressure of a pressurized oil supplied to the hydraulic clutch, a filter for the pressurized oil introduced to the pressure-reducing valve, and a hydraulic pump that supplies the pressurized oil to the hydraulic clutch; a housing that houses at least one of the hydraulic clutch, transmission mechanism, and hydraulic circuit; a base on which the switching valve, pressure-reducing valve, and filter are mounted, the base being detachably mounted in the housing.