发明授权
- 专利标题: Hydraulic control device for automatic transmission
- 专利标题(中): 液压控制装置自动变速器
-
申请号: US12871216申请日: 2010-08-30
-
公开(公告)号: US08616355B2公开(公告)日: 2013-12-31
- 发明人: Tomomi Ishikawa , Tetsuya Shimizu , Kazunori Ishikawa
- 申请人: Tomomi Ishikawa , Tetsuya Shimizu , Kazunori Ishikawa
- 申请人地址: JP Aichi-ken
- 专利权人: Aisin AW Co., Ltd.
- 当前专利权人: Aisin AW Co., Ltd.
- 当前专利权人地址: JP Aichi-ken
- 代理机构: Sughrue Mion, PLLC
- 优先权: JP2009-228737 20090930
- 主分类号: F16D33/00
- IPC分类号: F16D33/00
摘要:
A hydraulic control device used in an automatic transmission includes an oil pump, a working pressure regulating portion, a first lubricant supply passage, a lockup switch mechanism, and a second lubricant supply passage. The oil pump is driven in accordance with rotation of a driving source. The working pressure regulating portion regulates a working pressure based on an oil pressure generated by the oil pump. The first lubricant supply passage supplies a back pressure of the working pressure to a lubricant passage. The lockup switch mechanism turns on/off a lockup clutch of the automatic transmission by switching a supply/discharge path of the working pressure to/from a fluid transmission apparatus of the automatic transmission. The second lubricant supply passage supplies the working pressure to the lubricant passage and is disconnected when a lockup clutch of the automatic transmission is turned on by the lockup switch mechanism.
公开/授权文献
- US20110073427A1 HYDRAULIC CONTROL DEVICE FOR AUTOMATIC TRANSMISSION 公开/授权日:2011-03-31