
基本信息:
- 专利标题: 风扇驱动系统
- 专利标题(英):Fan drive system
- 申请号:CN200780030859.5 申请日:2007-07-19
- 公开(公告)号:CN101506484B 公开(公告)日:2011-05-25
- 发明人: 片冈丰美 , 福岛纯一 , 丸田和弘 , 石崎直树
- 申请人: 株式会社小松制作所
- 申请人地址: 日本东京都
- 专利权人: 株式会社小松制作所
- 当前专利权人: 株式会社小松制作所
- 当前专利权人地址: 日本东京都
- 代理机构: 中科专利商标代理有限责任公司
- 代理人: 李贵亮
- 优先权: 227681/2006 2006.08.24 JP
- 国际申请: PCT/JP2007/064270 2007.07.19
- 国际公布: WO2008/023516 JA 2008.02.28
- 进入国家日期: 2009-02-19
- 主分类号: F01P7/04
- IPC分类号: F01P7/04 ; E02F9/00 ; E02F9/22 ; F15B11/00 ; F15B21/04
A flow rate control valve (37) controlled based on coolant temperature is placed in an oil path for supplying oil to a hydraulic motor (35) from a variable displacement pump (1) in which the swash plate angle is controlled by a displacement control device (2). A pilot oil path (83) for detecting load pressure of the hydraulic motor (35) is connected to a shuttle valve (29) via a load pressure separation valve (45). To the shuttle valve (29) are led a maximum load pressure in a working machine circuit (33) and load pressure in a pilot oil path (80). High-pressure-side load pressure selected bythe shuttle valve (29) is led to the displacement control device (2) via a pilot oil path (85). The load pressure separation valve (45) is controlled by load pressure from a pilot oil path (79). Whenload pressure is generated in the working machine, the load pressure separation valve (45) shuts off the communication between the pilot oil path (83) and the shuttle valve (29) to supply tank pressure to the shuttle valve (29).
公开/授权文献:
- CN101506484A 风扇驱动系统 公开/授权日:2009-08-12
IPC结构图谱:
F | 机械工程;照明;加热;武器;爆破 |
--F01 | 一般机器或发动机;一般的发动机装置;蒸汽机 |
----F01P | 一般机器或发动机的冷却;内燃机的冷却 |
------F01P7/00 | 冷却剂流量的控制 |
--------F01P7/02 | .用冷却的空气作冷却剂 |
----------F01P7/04 | ..用变化泵速度的方法,如改变泵的传动比 |