基本信息:
- 专利标题： OIL PUMP
- 专利标题（中）：油泵
- 申请号：EP16768222.8 申请日：2016-02-16
- 公开(公告)号：EP3276176A1 公开(公告)日：2018-01-31
- 发明人： IDE, Atsuyuki
- 申请人： Jatco Ltd.
- 申请人地址： 700-1, Imaizumi Fuji-shi Shizuoka 417-8585 JP
- 专利权人： Jatco Ltd.
- 当前专利权人： Jatco Ltd.
- 当前专利权人地址： 700-1, Imaizumi Fuji-shi Shizuoka 417-8585 JP
- 代理机构： Grünecker Patent- und Rechtsanwälte PartG mbB
- 优先权： JP2015063701 20150326
- 国际公布： WO2016152319 20160929
- 主分类号： F04C2/10
- IPC分类号： F04C2/10 ; F04C15/06
摘要：
An oil pump (1) is provided with an inner rotor (22) configured to rotate integral with a shaft (20), an outer rotor (23) disposed in a loose-fit state within a pump chamber (31) and having an internal toothed portion provided on an inner periphery of the outer rotor and meshed with an external toothed portion provided on an outer periphery of the inner rotor (22), a ring-shaped pressure chamber (34) provided adjacent to the pump chamber (31) in a direction of a rotation axis (X), a discharge opening (241) for connecting the pump chamber (31) and the pressure chamber (34), and a discharge passage (35) having one end (35b) connected to the pressure chamber (34) and the other end serving as a connection opening (35a). The discharge passage (35) is formed to have a circular cross-sectional shape when viewed in the rotation axis X direction, and is provided at a position bridging the inside and outside of the outer periphery of the pressure chamber (34) when viewed in the rotation axis (X) direction. The one end (35b) of the discharge passage (35) is provided at a position reaching to a middle of the pressure chamber (34) when viewed in a radial direction of the rotation axis (X), and the discharge passage (35) and the pressure chamber (34) are in direct communication with each other.
摘要（中）：
本发明提供一种油泵（1），其具有与轴（20）一体旋转的内转子（22），在泵室（31）内以松配合状态配置的内转子（23） 设置在所述外转子的内周上并且与设置在所述内转子的外周上的外齿部啮合的环形压力室;邻近所述泵室设置的环形压力室， （X）的方向，用于连接泵室（31）和压力室（34）的排出口（241）以及具有与压力室（34）连接的一端（35b）的排出通道（35） （34），另一端用作连接开口（35a）。 当从旋转轴线X方向看时，排出通道（35）形成为具有圆形的横截面形状，并且设置在当观察时在压力室（34）的外周的内外桥接的位置处 旋转轴（X）方向。 从排出通路35的径向观察，排出通路35的一端35b设置在到达压力室34的中途的位置， 和压力室（34）彼此直接连通。