发明名称 |
ROTOR FOR PUMP, AND INTERNAL GEAR PUMP USING SAME |
摘要 |
<p>A tooth profile of an inner rotor 2 is formed by an envelope of a group of circular arcs of a locus circle C having a center on a trochoidal curve TC. The envelope of the group of circular arcs is formed by rolling a rolling circle having a predetermined diameter along a base circle without slipping and drawing the trochoidal curve TC based on a point distant from the center of the rolling circle by a distance equivalent to an amount of eccentricity between the two rotors. A diameter d 2 of the locus circle C is constant until one point between an addendum point and a dedendum point of the inner rotor and changes from the one point such that a diameter d 2B at the dedendum point becomes larger than a diameter d 2T at the addendum point of the inner rotor.</p> |
申请公布号 |
EP2759706(A4) |
申请公布日期 |
2015.07.15 |
申请号 |
EP20130777471 |
申请日期 |
2013.02.28 |
申请人 |
SUMITOMO ELECTRIC SINTERED ALLOY, LTD. |
发明人 |
SASAKI, HARUMITSU;YOSHIDA, KENTARO |
分类号 |
F04C2/10;F04C2/08;F04C15/00 |
主分类号 |
F04C2/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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