Oil pump

Details Oil pump Oil pump

2007-03-16

2010-12-07

Denion, Thomas E (Department: 3748)

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

C418S002000, C418S019000, C418S166000, C418S177000, C417S540000, C138S026000

Reexamination Certificate

active

07845920

ABSTRACT:
An oil pump in which pulsation vibration due to the dynamic pressure on the discharge port side can be attenuated. In an oil pump for transporting fluid from a suction port to a discharge port by the rotation of a rotor mounted in a pump casing, a resonator configured from an introduction path and a chamber is formed with respect to a discharge flow channel that communicates with the discharge port in the flow direction of the discharge flow channel. A channel in a direction different to the flow direction of the discharge flow channel is communicatingly formed in the vicinity of the resonator.

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