Abstract: A fluid connection system for a pump or other fluid handling device includes adapters for connecting fluid lines and fittings of different diameters to a fluid port. The system includes a sliding quick disconnect element with an adapter inserting internally of the quick disconnect element into a bore of the port. The adapter includes a cylindrical body with an outer annular groove that receives an O-ring for sealing against the bore of the port. The adapter body includes a first portion having a first inner diameter and a second portion having a second portion having a second diameter for receiving the fitting from the fluid line. The quick disconnect element receives the adapter internally of the quick disconnect to retain the adapter. The adapters having different diameter internal cavities and may be interchanged for using the same port for fluid lines of different sizes and diameters.

Abstract: A rotary fluid device having a housing that defines a pumping chamber, a shaft disposed in the housing, and a rotor disposed in the pumping chamber and engaged with the shaft. The rotor includes a body which defines a bore that includes an oblique tapered surface. A pivot line is disposed along the tapered surface. The pivot line is a circumferential line at which the rotor pivots. A method for manufacturing a rotor includes turning an outer peripheral surface of the rotor. A bore is formed in the rotor. The bore includes an oblique tapered surface that has a pivot line disposed along the tapered surface, wherein the pivot line is a circumferential line at which the rotor pivots.

Abstract: A rotary fluid device having a housing that defines a pumping chamber, a shaft disposed in the housing, and a rotor disposed in the pumping chamber and engaged with the shaft. The rotor includes a body which defines a bore that includes an oblique tapered surface. A pivot line is disposed along the tapered surface. The pivot line is a circumferential line at which the rotor pivots. A method for manufacturing a rotor includes turning an outer peripheral surface of the rotor. A bore is formed in the rotor. The bore includes an oblique tapered surface that has a pivot line disposed along the tapered surface, wherein the pivot line is a circumferential line at which the rotor pivots.