发明授权
- 专利标题: Work vehicle hydraulic system
- 专利标题(中): 作业车液压系统
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申请号: US10811042申请日: 2004-03-27
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公开(公告)号: US07251934B2公开(公告)日: 2007-08-07
- 发明人: Richard J. Lech , Matthew J. Hennemann
- 申请人: Richard J. Lech , Matthew J. Hennemann
- 申请人地址: US PA New Holland
- 专利权人: CNH America LLC
- 当前专利权人: CNH America LLC
- 当前专利权人地址: US PA New Holland
- 代理商 John William Stader; Michael G. Harms
- 主分类号: F16D31/02
- IPC分类号: F16D31/02
摘要:
A hybrid hydraulic system for a work vehicle is provided that includes a first fixed displacement hydraulic pump whose outlet is connected to a priority valve. The priority valve, in turn, directs the pump's flow to a first group of closed center backhoe valves on a primary circuit and a second group of open center loader valves on a secondary circuit. A second hydraulic pump is provided with independent load sensing capability to supplement fluid flow provided by the first pump.
公开/授权文献
- US20050210871A1 Work vehicle hydraulic system 公开/授权日:2005-09-29
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