发明名称 |
A SINTERED ROTOR FOR A ROTARY PUMP AND A MANUFACTURING METHOD FOR THE ROTOR |
摘要 |
<p>A sintered outer rotor for a rotary pump utilizing the trochoidal curve and a manufacturing method for the rotor, the rotor being formed to make a combinational gap between an inner rotor and the outer rotor as small and constant as possible in order that both the inner and outer rotors are rotatable. The rotor is formed with an eccentricity ratio less than a limit based upon an experimentally obtained function of the ratio of the diameter of the base circle to that of the rolling circle used to form the trochoidal curve, and with corrected circular arcs of the tooth portions such that ¦ DELTA b¦+¦ DELTA c¦<0.3 mm and DELTA b> DELTA c, wherein DELTA b and DELTA c are respectively the corrections to the centers of the circular arcs and the radii of the circular arcs. The ratio of the base circle to that of the rolling circle is not an integer and therefore is not equal to the number of outer rotor teeth as in the conventional outer rotor.</p> |
申请公布号 |
EP0099950(A3) |
申请公布日期 |
1984.05.02 |
申请号 |
EP19820306783 |
申请日期 |
1982.12.20 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES LIMITED |
发明人 |
SAEGUSA, YASUYOSHI C/O ITAMI WORKS |
分类号 |
B22F5/00;F04C2/08;F04C2/10;(IPC1-7):04C2/10 |
主分类号 |
B22F5/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|