Patent ID: 9605673
Date: 2017-03-28
CPC Classifications: F01C,F04C,H01R,H02K

Claim:
1. A pump comprising: a rotor attached to a motor that rotates the rotor; wherein the rotor being located in a cavity; a plurality of vanes each pivotally coupled to the rotor so as the rotor rotates, the vanes selectively push fluid from an inlet port out through an outlet port; wherein the plurality of vanes each having an end selected from the group consisting, of a lobe, no lobe, and a rod located in the lobe; wherein each of the plurality of vanes includes a pivot pin configured to fit in a corresponding receptacle located in the rotor so that each of the plurality of vanes is pivotable with respect to the rotor inside the cavity; and wherein the pump does not include a bypass valve, but herein the plurality of vanes are pivotable with respect to the rotor and are configured to not engage a cavity wall when the outlet port is sealed, so when the rotor is still rotating, the vanes will not move fluid toward the outlet port to build pressure.