Rotary variable expansible chamber-kinetic hybrid pump

A mechanical positive rotary pump in which all parts move in exact and precise orbits at all operational speeds and pressures, having a first housing member with a rotor mounted for rotation, with the rotor and the first housing member sharing a common planar face, and mating in a sealing manner with a second housing member, also with a planar face, which has a cavity which is approximately annular in shape and which, when mating with the first housing member, forms an enclosed chamber bounded by the first housing member with a rotor planar wall, and by the second housing member, having an axially inner arcuate surface boundary, an axially outer arcuate surface boundary, and a planar end surface boundary, which is parallel to the first housing planar surface;

• and having abutments which extend across the chamber and seal on all chamber surfaces, inner arcuate surface, outer arcuate surface, and planar surfaces and the abutments being the only members which seal and divide the chambers into sub-chambers, the abutments being positively held both by the surfaces of the chamber and by connections to the rotor face, and which connections neither divide nor seal the chamber, but serve to drive the abutments around the chamber;
• and the abutments requiring neither additional springs, centrifugal force, or pressure forces to seal the chamber, and such that the pressure forces pass through the center of the abutment in approximately the torque direction by fluid pressure, so that the abutments are not fluid pressure loaded to either arcuate surface, but the pressure is delivered to the abutment connection as torque;
• and the second housing member having an intake port entering axially into the center hub described by the axially inner arcuate surface, and whereupon the intake duct is curved so as to direct the intake fluid radially outward through an intake port though the axially inner arcuate surface into the chamber, and such that at all times the inner arcuate surface communicates freely, and without obstruction, with the outer axially arcuate surface which has a discharge port exiting tangentially from the chamber, by the diminishing volumes of the sub-chambers as well as by momentum so that, in the absence of excessive head pressure, the fluid within the sub-chamber exits tangentially by both means, such that as a cycle, fluid is drawn in through the intake chamber into the sub-chambers, where it is contained and displaced to the discharge port, where the fluid exits by both the diminishing of sub-chamber size and by momentum, since the abutments divide the chamber into sub-chambers, which, during rotation, may change their volumes such that the maximum sub-chamber volume minus the minimum sub-chamber volume is the sub-chamber displacement, but the remaining volume is acted on by centrifugal force and momentum to provide a pumping component which is dependent on rotational velocity, which I shall refer to as a positive displacement tangential kinetic pump component.