发明公开
- 专利标题： Hydraulic pump
- 专利标题（中）： 液压泵
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申请号： EP09012111.2申请日： 2009-09-23
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公开(公告)号： EP2169235A2公开(公告)日： 2010-03-31
- 发明人: Horie, Toshio , Shimizu, Fumio , Igarashi, Shintaro , Mori, Hiroyuki , Suzuki, Kenichi , Yamamoto, Yuji , Nakano, Yoshiaki
- 申请人： Aisin Seiki Kabushiki Kaisha
- 申请人地址： 1, Asahi-machi 2-chome Kariya-shi Aichi-ken 448-8650 JP
- 专利权人： Aisin Seiki Kabushiki Kaisha
- 当前专利权人： Aisin Seiki Kabushiki Kaisha
- 当前专利权人地址： 1, Asahi-machi 2-chome Kariya-shi Aichi-ken 448-8650 JP
- 代理机构： Kramer - Barske - Schmidtchen
- 优先权： JP2008249669 20080929
- 主分类号： F04D13/06
- IPC分类号： F04D13/06 ; F04D15/00 ; F04D29/02 ; C23F13/02
摘要：
A hydraulic pump (90, 1) includes a housing (91, 100) including an inlet port (91i, 51), an outlet port (91 e, 52), and a fluid chamber (91f, 80), a shaft (92p, 20) fixed to the housing, a rotor (93, 30) including an impeller portion (93P, 32), a fixed portion (91s, 42, 53) provided at the housing and made of an aluminum alloy, the fixed portion securing the shaft (92p, 20), a short-circuit portion (92s, 22, 23) provided at the shaft and made of a stainless steel having a nitrided layer at a surface, the short-circuit portion being supplied with a protection current from the fixed portion (91s, 42, 53), and a support portion (92p, 21) formed by extending from the short-circuit portion (92s, 22, 23), an outer peripheral surface of the support portion being covered with an amorphous carbon film of which a main component is carbon and which includes silicon.
公开/授权文献
- EP2169235A3 Hydraulic pump 公开/授权日：2012-06-27
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