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US 10,975,869 B2Granted
Rotary fluid flow device
AssigneeExponential Technologies, Inc.
InventorsAlejandro Juan, Michael Sereda-Mohr, Erik Farrell
Life of this patent
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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.
Claims21
A rotary fluid flow device comprising:
- a housing comprising a concave frusto-spherical inner housing surface;
- a first rotor comprising a convex frusto-spherical first rotor outer surface adjacent the inner housing surface, at least one lobe defining at least one valley, a first rotor center at the radial center of the first rotor outer surface;
- a first rotor hydrostatic bearing formed on the first rotor outer surface;
- the first rotor hydrostatic bearing comprising;
- at least one first rotor fluid port through the first rotor outer surface, a surface defining a first bearing pocket around the first rotor fluid port, at least one first landing around the first bearing pocket;
- the first landing protruding radially outward from the first bearing pocket relative to the center of the first rotor;
- and
- the first landing immediately adjacent the inner housing surface forming a fluid seal thereto.
5 more elements
A rotary fluid flow device comprising:
- a first rotor comprising a convex frusto-spherical first rotor outer surface adjacent an inner housing surface, at least one lobe forming at least one valley, a first rotor center at the radial center of the first rotor outer surface;
- the first rotor comprising a first rotor insert surface at a radial center of the lobe, valley, the first rotor insert surface having an axis substantially parallel to a rotational axis of the first rotor;
- a first insert removably positioned within the first rotor insert surface;
- the first insert comprising a frusto-spherical inner surface;
- and
- a frusto-spherical insert removably inserted into the frusto-spherical inner surface of the first insert and
- the first insert configured to cooperate with a second rotor and form a fluid seal thereto.
4 more elements
A rotary fluid flow device comprising:
- a housing;
- a first rotor having a rotor shaft within the housing, an outer surface with a hydrostatic bearing engaging an inner surface of the housing;
- a collar fitted to the rotor shaft;
- the collar having a forward surface axially facing the first rotor;
- the collar having a rearward surface axially facing away from the first rotor;
- a forward self-compensating hydrostatic bearing engaging the forward surface of the collar;
- the forward self-compensating hydrostatic bearing comprising;
- at least one first rotor fluid port, a surface defining a bearing pocket around the fluid port, at least one landing around the bearing pocket;
- the landing protruding from the bearing pocket;
- the landing immediately adjacent the first rotor outer surface forming a fluid seal thereto:
- and
- wherein the forward self-compensating hydrostatic bearing offsets force exerted by the hydrostatic bearing between the first rotor outer surface and the inner surface of the housing.
9 more elements
Dependencies are inferred from the claim text.