초록 ▼

A sliding vane rotary pump having fixed volume hydraulic vane actuation. The pump generally includes a rotor assembly rotatably positioned within a rotor chamber to define at least one pumping chamber. The pumping chamber is divided into a primary chamber and a secondary chamber. The axial walls of

A sliding vane rotary pump having fixed volume hydraulic vane actuation. The pump generally includes a rotor assembly rotatably positioned within a rotor chamber to define at least one pumping chamber. The pumping chamber is divided into a primary chamber and a secondary chamber. The axial walls of the rotor chamber define a plurality of transfer grooves and the rotor defines a plurality of rotor transfer holes. The rotor transfer holes and transfer grooves are arranged to provide a flow path from the secondary chamber to the vane slot of an extending vane each time a vane travels through the secondary chamber.

대표청구항 ▼

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.] A sliding vane rotary pump for pumping a pumpage, comprising:a pump housing defining a primary chamber and a secondary chamber;a rotor assembly mounted within said housing for rota

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.] A sliding vane rotary pump for pumping a pumpage, comprising:a pump housing defining a primary chamber and a secondary chamber;a rotor assembly mounted within said housing for rotation about an axis, said rotor assembly including a rotor and a plurality of vanes carried by said rotor, said vanes adapted to move through said primary chamber and said secondary chamber as said rotor assembly rotates, said primary chamber and said secondary chamber shaped such that said vanes actuate as said rotor assembly rotates, said secondary chamber containing a fixed volume of pumpage; andfixed-volume actuation means for using said fixed volume of pumpage in said secondary chamber to actuate a vane.