Patents by Inventor William T. Cousins
William T. Cousins has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11965514Abstract: A refrigerant compressor assembly (20A, 20B, 20C) includes an axial compressor (22B, 22C, 22) that includes at least one axial stage. A downstream compressor (24) is located fluidly downstream of the axial compressor (22B, 22C, 22) and includes one of a mixed-flow impeller (46) or a centrifugal impeller (96). At least one motor (26, 27) is in driving engagement with at least one of the axial compressor (22B, 22C, 22) and the downstream compressor (24).Type: GrantFiled: July 20, 2020Date of Patent: April 23, 2024Assignee: Carrier CorporationInventors: Michael M. Joly, Chaitanya Vishwajit Halbe, Vishnu M. Sishtla, William T. Cousins
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Patent number: 11808277Abstract: An example centrifugal compressor includes a housing that defines an inlet chamber and includes first and second openings that define a recirculation passage in fluid communication with the inlet chamber. An impeller is disposed within the housing and is rotatable about a longitudinal axis to draw fluid into the inlet chamber. The first and second openings are at different axial locations along the longitudinal axis. A plurality of inlet guide vanes are rotatable and situated in the inlet chamber. The centrifugal compressor includes a ring and a controller for moving the ring along the longitudinal axis between a first position and a second position when rotating the inlet guide vanes. The ring obstructs at least one of the first and second openings more in the second position than in the first position.Type: GrantFiled: October 5, 2022Date of Patent: November 7, 2023Assignee: Carrier CorporationInventors: Vishnu M. Sishtla, William T. Cousins
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Patent number: 11739766Abstract: A centrifugal compressor includes an impeller configured to drive fluid along a fluid flowpath via a plurality of discrete passages. Each of the discrete passages includes a discrete passage exit. A diffuser portion is disposed circumferentially about the impeller. The diffuser portion includes a plenum connected to each exit of the discrete passages via a plurality of diffuser inlets and an equalization plenum defined adjacent to the impeller. The equalization plenum is fluidly connected to each discrete passage exit via a corresponding slot.Type: GrantFiled: May 8, 2020Date of Patent: August 29, 2023Assignee: Carrier CorporationInventors: Vishnu M. Sishtla, William T. Cousins
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Patent number: 11592034Abstract: A mixed-flow compressor includes an impeller attached to a shaft and rotatable about a shaft axis. A vaneless diffuser is located axially downstream of the impeller and has a converging portion and a diverging portion. A vaned diffuser is located axially downstream of the vaneless diffuser.Type: GrantFiled: June 16, 2020Date of Patent: February 28, 2023Assignee: CARRIER CORPORATIONInventors: Chaitanya Vishwajit Halbe, Michael M. Joly, William T. Cousins, Vishnu M. Sishtla
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Publication number: 20230025097Abstract: An example centrifugal compressor includes a housing that defines an inlet chamber and includes first and second openings that define a recirculation passage in fluid communication with the inlet chamber. An impeller is disposed within the housing and is rotatable about a longitudinal axis to draw fluid into the inlet chamber. The first and second openings are at different axial locations along the longitudinal axis. A plurality of inlet guide vanes are rotatable and situated in the inlet chamber. The centrifugal compressor includes a ring and a controller for moving the ring along the longitudinal axis between a first position and a second position when rotating the inlet guide vanes. The ring obstructs at least one of the first and second openings more in the second position than in the first position.Type: ApplicationFiled: October 5, 2022Publication date: January 26, 2023Inventors: Vishnu M. Sishtla, William T. Cousins
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Patent number: 11499561Abstract: An example centrifugal compressor includes a housing that defines an inlet chamber and includes first and second openings that define a recirculation passage in fluid communication with the inlet chamber. An impeller is disposed within the housing and is rotatable about a longitudinal axis to draw fluid into the inlet chamber. The first and second openings are at different axial locations along the longitudinal axis. A plurality of inlet guide vanes are rotatable and situated in the inlet chamber. The centrifugal compressor includes a ring and a controller for moving the ring along the longitudinal axis between a first position and a second position when rotating the inlet guide vanes. The ring obstructs at least one of the first and second openings more in the second position than in the first position.Type: GrantFiled: September 23, 2021Date of Patent: November 15, 2022Assignee: Carrier CorporationInventors: Vishnu M. Sishtla, William T. Cousins
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Patent number: 11499569Abstract: A compressor includes a housing. An impeller is located within the housing and rotatable about an impeller axis in a first rotational direction. A rotor section is rotatable about the impeller axis in a second rotational direction opposite the first rotational direction.Type: GrantFiled: June 16, 2020Date of Patent: November 15, 2022Inventors: Michael M. Joly, Chaitanya Vishwajit Halbe, William T. Cousins, Vishnu M. Sishtla
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Patent number: 11498660Abstract: A hybrid wing aircraft has an engine embedded into a body of the hybrid wing aircraft. The embedded engine has a fan that is received within a nacelle. The body of the aircraft provides a boundary layer over a circumferential portion of a fan. A system delivers additional air to correct fan stability issues raised by the boundary layer.Type: GrantFiled: October 23, 2018Date of Patent: November 15, 2022Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Razvan Virgil Florea, William T. Cousins, Thomas G. Tillman, David J. Arend, John D. Wolter
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Patent number: 11421708Abstract: An impeller mountable within a centrifugal compressor includes a hub having a front side and a back side, the hub being rotatable about an axis of rotation and a plurality of vanes extending outwardly from the front side of the hub such that a plurality of passages is defined between adjacent vanes. The plurality of vanes is oriented such that a flow output from the plurality of passages adjacent the back side of the impeller is arranged at an angle to the axis of rotation of less than 20 degrees.Type: GrantFiled: January 9, 2019Date of Patent: August 23, 2022Assignee: CARRIER CORPORATIONInventors: William T. Cousins, Vishnu M. Sishtla, Michael M. Joly
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Publication number: 20220228593Abstract: A refrigerant compressor assembly (20A, 20B, 20C) includes an axial compressor (22B, 22C, 22) that includes at least one axial stage. A downstream compressor (24) is located fluidly downstream of the axial compressor (22B, 22C, 22) and includes one of a mixed-flow impeller (46) or a centrifugal impeller (96). At least one motor (26, 27) is in driving engagement with at least one of the axial compressor (22B, 22C, 22) and the downstream compressor (24).Type: ApplicationFiled: July 20, 2020Publication date: July 21, 2022Inventors: Michael M. Joly, Chaitanya Vishwajit Halbe, Vishnu M. Sishtla, William T. Cousins
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Patent number: 11346366Abstract: A centrifugal compressor includes a shaft defining an axis, an impeller mounted to the shaft for rotation about the axis, and a diffuser section including a first wall, a second wall, and an opening defined between the first wall and the second wall. The opening of the diffuser section is arranged in fluid communication with the impeller. The first wall is rotatable about the axis and rotation of the first wall about the axis is mechanically driven.Type: GrantFiled: January 31, 2020Date of Patent: May 31, 2022Assignee: CARRIER CORPORATIONInventors: Michael M. Joly, Xiaodan Cai, Chaitanya V. Halbe, William T. Cousins, Vishnu M. Sishtla
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Publication number: 20220065256Abstract: A compressor includes a housing, a first compression stage defined within the housing, a second compression stage defined within the housing, and a motor disposed between the first compression stage and the second compression stage relative to a flow of fluid through the compressor. The first compression component of the first compression stage has a mixed-flow configuration and the second compression component of the second compression stage has a radial-flow configuration.Type: ApplicationFiled: May 15, 2020Publication date: March 3, 2022Inventors: Vishnu Sishtla, William T. Cousins, Michael M. Joly
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Publication number: 20220049717Abstract: A compressor includes a housing. An impeller is located within the housing and rotatable about an impeller axis in a first rotational direction. A rotor section is rotatable about the impeller axis in a second rotational direction opposite the first rotational direction.Type: ApplicationFiled: June 16, 2020Publication date: February 17, 2022Inventors: Michael M. Joly, Chaitanya Vishwajit Halbe, William T. Cousins, Vishnu M. Sishtla
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Publication number: 20220049716Abstract: A mixed-flow compressor includes an impeller attached to a shaft and rotatable about a shaft axis. A vaneless diffuser is located axially downstream of the impeller and has a converging portion and a diverging portion. A vaned diffuser is located axially downstream of the vaneless diffuser.Type: ApplicationFiled: June 16, 2020Publication date: February 17, 2022Inventors: Chaitanya Vishwajit Halbe, Michael M. Joly, William T. Cousins, Vishnu M. Sishtla
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Publication number: 20220010802Abstract: An example centrifugal compressor includes a housing that defines an inlet chamber and includes first and second openings that define a recirculation passage in fluid communication with the inlet chamber. An impeller is disposed within the housing and is rotatable about a longitudinal axis to draw fluid into the inlet chamber. The first and second openings are at different axial locations along the longitudinal axis. A plurality of inlet guide vanes are rotatable and situated in the inlet chamber. The centrifugal compressor includes a ring and a controller for moving the ring along the longitudinal axis between a first position and a second position when rotating the inlet guide vanes. The ring obstructs at least one of the first and second openings more in the second position than in the first position.Type: ApplicationFiled: September 23, 2021Publication date: January 13, 2022Inventors: Vishnu M. Sishtla, William T. Cousins
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Patent number: 11156226Abstract: An example centrifugal compressor includes a housing that defines an inlet chamber and includes first and second openings that define a recirculation passage in fluid communication with the inlet chamber. An impeller is disposed within the housing and is rotatable about a longitudinal axis to draw fluid into the inlet chamber. The first and second openings are at different axial locations along the longitudinal axis. A plurality of inlet guide vanes are rotatable and situated in the inlet chamber. The centrifugal compressor includes a ring and a controller for moving the ring along the longitudinal axis between a first position and a second position when rotating the inlet guide vanes. The ring obstructs at least one of the first and second openings more in the second position than in the first position.Type: GrantFiled: February 11, 2019Date of Patent: October 26, 2021Assignee: CARRIER CORPORATIONInventors: Vishnu M. Sishtla, William T. Cousins
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Publication number: 20210270289Abstract: A centrifugal compressor includes an impeller configured to drive fluid along a fluid flowpath via a plurality of discrete passages. Each of the discrete passages includes a discrete passage exit. A diffuser portion is disposed circumferentially about the impeller. The diffuser portion includes a plenum connected to each exit of the discrete passages via a plurality of diffuser inlets and an equalization plenum defined adjacent to the impeller. The equalization plenum is fluidly connected to each discrete passage exit via a corresponding slot.Type: ApplicationFiled: July 10, 2020Publication date: September 2, 2021Inventors: Vishnu M. Sishtla, William T. Cousins
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Publication number: 20210270279Abstract: An exemplary compressor system includes a compressor having a fluid inlet and a fluid outlet. An isolation valve connects the fluid outlet of the compressor to a condenser. A controller is communicatively coupled to the isolation valve and the compressor. The controller includes a memory storing instructions configured to cause the controller to detect one of a surge event and a surge event precursor and restrict an opening in the isolation valve in response.Type: ApplicationFiled: May 11, 2020Publication date: September 2, 2021Inventors: Vishnu M. Sishtla, William T. Cousins
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Patent number: 11053950Abstract: A centrifugal compressor impeller (60; 160) has a hub (62; 162) having a gaspath surface (64; 164) extending from a leading end to a trailing end. A plurality of blades (70A, 70B; 170) extend from the hub gaspath surface and each have: a leading edge (72A, 72B; 172); a trailing edge (74A, 74B; 174); a first face (80A, 80B; 180); a second face (82A, 82B; 182); and a tip (78A, 78B; 178). A plurality of flow splitter segments (120, 122; 320, 322) extend between associated twos of the blades and each spaced from both the hub gaspath surface and the tips of the associated two blades.Type: GrantFiled: February 20, 2019Date of Patent: July 6, 2021Assignee: Carrier CorporationInventors: Vishnu M. Sishtla, William T. Cousins
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Publication number: 20210164489Abstract: A ported shroud (60) for use in a compressor includes a body having a first end (42) and a second opposite end (46). The body is disposed concentrically about an axial passageway (50) and includes an inlet (40) for receiving a fluid flow formed adjacent the first end (42) and an outlet port (70) for discharging the fluid flow formed adjacent the second end (46). A toroidal volute (74) is disposed within the interior of the body and fluidly couples the inlet and the outlet.Type: ApplicationFiled: April 10, 2019Publication date: June 3, 2021Inventors: Michael M. Joly, Ulf J. Jonsson, William T. Cousins, Vishnu M. Sishtla