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US 11,236,764 B2Granted
Pump with housing having internal grooves
AssigneeAerojet Rocketdyne, Inc.
InventorsKhin Phui, Sen Meng
Life of this patent
Estimating the term…
Abstract
A pump includes an axial inducer. The axial inducer includes a housing that has an internal surface that defines an axial fluid passage. A rotor is disposed about a central axis in the fluid passage. The rotor includes at least one blade that defines at least one blade tip. The internal surface of the housing defines a plurality of grooves adjacent the at least one blade tip. The grooves are elongated in a circumferential direction.
Claims13
A pump comprising:
- an axial inducer including
- a housing having an internal surface defining an axial fluid passage, and
- a rotor disposed about a central axis in the fluid passage of the housing and having at least one blade defining at least one blade tip,
- the internal surface of the housing defining a plurality of grooves adjacent the at least one blade tip, the plurality of grooves being elongated in a circumferential direction, the plurality of grooves including an endless groove and an ended groove aft of the endless groove.
1 more element
A pump comprising:
- an axial inducer including
- a housing having an internal surface defining an axial fluid passage, and
- a rotor disposed about a central axis in the fluid passage of the housing and having at least one blade defining at least one blade tip,
- the internal surface of the housing defining a plurality of grooves adjacent the at least one blade tip, the plurality of grooves defining, with respect to a reference plane perpendicular to the central axis, a forward pitch angle and the at least one blade defining, with respect to the reference plane, an aft pitch angle, the plurality of grooves including an endless groove and an ended groove aft of the endless groove.
1 more element
A pump comprising:
- an axial inducer including
- a housing having an internal surface defining an axial fluid passage, and
- a rotor disposed about a central axis in the fluid passage of the housing and having at least one blade defining at least one blade tip,
- the internal surface of the housing defining a plurality of grooves adjacent the at least one blade tip, each of the grooves defining, with respect to a reference plane perpendicular to the central axis, a pitch angle that varies along the groove, the plurality of grooves including an endless groove and an ended groove aft of the endless groove.
1 more element
Dependencies are inferred from the claim text.