Patent ID: 6368090
Filing Date: 2002-04-09
Classification: F01C,F04C

Abstract:
An automotive vane pump for generating anti-centrifugal force, the pump comprising:a stator housing a rotor radiately equipped with a plurality of blades variably withdrawn according to size of centrifugal force generated by being rotated and coupled to a shaft received in a housing having inlet/outlet structure for operation oil in coupling with a pulley driven by an engine; a cover coupled to the housing mounted with the stator for sealing up the housing; and centrifugal force generating means corresponding to each said blade mounted at the rotor and operatively connected to the corresponding blade for generating centrifugal force in order to pull the corresponding blade into the rotor against radial withdrawal of the corresponding blade, where each centrifugal force generating means further comprises: a resilient member constituting a spring radiately formed in the rotor, equipped at a slot accepting the corresponding blade and compressed by movement of the corresponding blade; and a ball pendulum exposed to a centrally-opened communicating groove through a connecting groove connected to the slot where the corresponding blade is accommodated.