| 摘要 |
An internal gear pump in which an inner rotor (1) and an outer rotor (2) are arranged in a rotor housing chamber. A deepest meshing section (S1) is located in the vicinity of a line connecting a center (P1) of the inner rotor and a center (P2) of the outer rotor. A center of the rotor housing chamber is offset, from a position in which the center and the center of the outer rotor coincide with each other, to the deepest meshing section side by an amount smaller than a tip clearance, which is a gap between the tooth tip of the inner rotor and the tooth tip of the outer rotor in the vicinity of a seal land between a terminal end side of an intake port and a start end side of a discharge port. |
