Invention Grant
- Patent Title: Hydraulic circuit for working machine
- Patent Title (中): 工作机液压回路
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Application No.: US13061678Application Date: 2009-08-05
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Publication No.: US08713931B2Publication Date: 2014-05-06
- Inventor: Kunihiko Sakamoto , Riki Fujita , Masaaki Yamashita , Nagahiro Ogata , Yousuke Yamashita
- Applicant: Kunihiko Sakamoto , Riki Fujita , Masaaki Yamashita , Nagahiro Ogata , Yousuke Yamashita
- Applicant Address: JP Osaka
- Assignee: Yanmar Co., Ltd.
- Current Assignee: Yanmar Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- Priority: JP2008-225257 20080902
- International Application: PCT/JP2009/063865 WO 20090805
- International Announcement: WO2010/026848 WO 20100311
- Main IPC: F16D31/02
- IPC: F16D31/02
Abstract:
A working vehicle, wherein flows of hydraulic oil delivered under pressure from two or more hydraulic pumps are joined together and the joined hydraulic oil can be taken out. A working vehicle is provided with two hydraulic pumps independent of each other and adapted to deliver hydraulic oil under pressure, a mode switching valve (230) capable of being switched to a flow joining position (K) at which flows of the hydraulic oil delivered under pressure by the two hydraulic pumps are joined together, PTO ports (260, 261) out of which the hydraulic oil is taken, and a PTO switching valve (240) provided downstream of the mode switching valve (230) and switching flow of the hydraulic oil so that the oil can be delivered under pressure to the PTO ports (260, 261).
Public/Granted literature
- US20120048409A9 Hydraulic Circuit For Working Machine Public/Granted day:2012-03-01
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