Patent ID: 11879461
Assignee: TOYODA GOSEI CO., LTD.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. An oil pump comprising:
a shaft member configured to rotate by drive of a drive source;
an inner rotor having external teeth and configured to rotate integrally with the shaft member;
an outer rotor having internal teeth meshing with the external teeth, configured to rotate as the inner rotor rotates, and forming a rotor chamber into which oil is sucked from a suction passage and from which the oil is discharged toward a discharge passage, between the inner rotor and the outer rotor;
a body member having a recess-shaped housing chamber in which the inner rotor and the outer rotor are housed so as to be rotatable about an axis; and
a cover member having at least a part of the suction passage and attached so as to close the housing chamber, wherein
the rotor chamber has a first suction port and a second suction port through each of which the oil to be sucked from the suction passage into the rotor chamber passes, and
the oil pump comprises a straightening member branching the suction passage from a main path to the first suction port and the second suction port, and configured to straighten the oil guided from the main path to the first suction port and the oil guided from the main path to the second suction port,
wherein the straightening member is formed and disposed such that an axial end face of the straightening member is opposed to an axial end face of the outer rotor in an axial direction without interruption from one end to another end thereof in a direction different from a thickness direction of the straightening member.