| 摘要 |
An internal gear pump provided with a pump rotor (4) in which the point of engagement between an inner rotor (2) having n teeth and an outer rotor (3) having (n+1) teeth is positioned rearward, with respect to the direction of rotor rotation, relative to an eccentric axis (CL) on which the inner rotor center (OI) and the outer rotor center (OO) are arranged. An internal gear pump in which the tooth surface curve in the vicinity of the portion of engagement of the outer rotor (3) is configured by transferring the tooth surface shape in the vicinity of the portion of engagement of the inner rotor (2). |
