基本信息:
- 专利标题： 齿轮泵
- 专利标题（英）：GEAR PUMP
- 申请号：CN201680050919.9 申请日：2016-09-06
- 公开(公告)号：CN107923390A 公开(公告)日：2018-04-17
- 发明人： 服部雅士 , 武田光博 , 木村雅幸
- 申请人： 爱信艾达株式会社
- 申请人地址： 日本爱知县
- 专利权人： 爱信艾达株式会社
- 当前专利权人： 爱信艾达株式会社
- 当前专利权人地址： 日本爱知县
- 代理机构： 隆天知识产权代理有限公司
- 代理人： 向勇; 董雅会
- 优先权： 2015-175874 2015.09.07 JP
- 国际申请： PCT/JP2016/076157 2016.09.06
- 国际公布： WO2017/043478 JA 2017.03.16
- 进入国家日期： 2018-03-02
- 主分类号： F04C2/10
- IPC分类号： F04C2/10
A gear pump (1) comprises: an intake port (6); a first and a second discharge ports (7), (8); an inner rotor (2) including a plurality of outer teeth (20); an outer rotor (3) including a plurality ofinner teeth (30) of which the number is greater than the number of the outer teeth (20) of the inner rotor (2); and a plurality of inter-teeth chambers (5) defined by the plurality of outer teeth (20)and the plurality of inner teeth (30), wherein the first and second discharge ports (7), (8) communicate with the inter-teeth chambers (5), of which the volume (V) decreases as the inner rotor (2) and the like rotate, and the inter-teeth chambers (5x) that have ceased to communicate with the second discharge port (8) communicate with the intake port (6) while the volume (V) decreases, wherein thevolume (V) of the inter-teeth chambers (5x) that have ceased to communicate with the second discharge port (8) increases after at least some of the inter-teeth chambers (5x) come to communicate withthe intake port (6).
公开/授权文献:
- CN107923390B 齿轮泵 公开/授权日：2019-05-07