To provide an oil pump etc. capable of easily securing the accuracy of the clearance between both teeth of an outer rotor and an inner rotor.
In this oil pump 1, a cam ring 23 is arranged to be gripped and held between a pump body 21 and a cover member 22 provided in a butted state which are integrally connected with a plurality of bolts 20. Adopting a structure of independently fixing the cam ring 23 to the pump body 21 with the small diameter bolts 31, 31 separately from the joint fastening and fixing to the cover member 22 with the bolts 20 so as to fix the cam ring 23 to the pump body 21 beforehand in mounting the pump can arrange the cam ring 23 in a proper diameter direction and at a proper position without depending on the processing accuracy of these components. By this, the oil pump having a stable ejection characteristic can be obtained, and the steering feeling of the power steering device can be improved.
SAKAKI TOSHIMITSU
| JPS57119192A | 1982-07-24 | |||
| JPH0693979A | 1994-04-05 | |||
| JP2005047296A | 2005-02-24 | |||
| JPH01162096A | 1989-06-26 |
Hiromichi Kobayashi
Tomioka Kiyoshi