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US 2021/0301825 A1Published application
Rotary Fluid Flow Device
OwnerAlejandro Juan, Michael Sereda-Mohr +1inventors
InventorsAlejandro Juan, Michael Sereda-Mohr, Erik Farrell
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Abstract
A positive displacement device that converts energy, namely positive displacement compressors that rotate in a single rotational direction to displace working fluid contained in operating chambers. The device described herein is particularity advantageous for the ability to achieve high compression ratios in combination with high discharge pressure and high volumetric throughput in a single stage.
Claims20
A rotary fluid flow device (20) comprising:
- a housing (55);
- a first rotor (76) having a rotor shaft (64) within the housing (55), an outer surface with a hydrostatic bearing (134) engaging an inner surface (114) of the housing;
- a collar (38) fitted to the rotor shaft (64);
- the collar (38) having a forward surface axially facing the first rotor (76);
- the collar (38) having a rearward surface axially facing away from the first rotor (76);
- a forward self-compensating hydrostatic bearing (118) engaging the forward surface of the collar (38);
- and
- wherein the forward self-compensating hydrostatic bearing (118) offsets force exerted by the hydrostatic bearing (134) between the first rotor outer surface and the inner surface (114) of housing (55).
5 more elements
A first hydrostatic bearing (620) comprising:
- a first outer bearing landing (290) surrounding at least one bearing pocket (284);
- an abutting component (671) having an abutting surface (671′) immediately adjacent the first outer bearing landing (290);
- wherein the first hydrostatic bearing (620) is configured to move relative to the abutting surface (671) of abutting component (671);
- at least one first fluid port (270/394) surrounded by the first bearing landing;
- and
- first fluid port (270) configured to supply bearing fluid under pressure through the first hydrostatic bearing (620) between the bearing pocket (284) and the surface (671′).
3 more elements
A rotary fluid flow device (20) comprising:
- a first rotor (76) comprising at least one lobe (78B), at least one valley (82B), an axis of rotation (639);
- a second rotor (28) comprising at least one lobe (78A), at least one valley (82A), an axis of rotation (637) offset from and intersecting the axis of rotation of the first rotor;
- the lobe of the first rotor, the valley of the second rotor forming a first rotor chamber (144A);
- the lobe of the second rotor, the valley of the first rotor forming a second rotor chamber (144B);
- and
- a groove (661) in a first rotor axial face (83B) forming a fluid conduit between the first rotor chamber (144A) and the second rotor chamber (144B).
3 more elements
Dependencies are inferred from the claim text.