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公开(公告)号:US11808264B2
公开(公告)日:2023-11-07
申请号:US17253810
申请日:2019-08-27
Applicant: Carrier Corporation
Inventor: Ramons A. Reba , Duane C. McCormick , David M. Rockwell , Mark W. Wilson
CPC classification number: F04C29/065 , F04C18/16 , F04C29/06 , F04C29/068 , F04C29/12 , F04C2240/20 , F04C2270/155
Abstract: A compressor has an inlet port and a discharge port. The discharge port communicates into a resonator chamber. The resonator chamber includes a first stage resonator array and a second stage resonator array downstream of the first stage resonator array with a connecting passage intermediate the first and second resonator array. Each of the resonator arrays includes a pair of spaced resonator arrays sub-portions, with each of the sub-portions including a plurality of cells extending into a housing member, and have a bottom wall and an open outer wall communicating with the flow passage, with a plurality of orifices extending into each of the cells. The orifices have a smaller diameter than a hydraulic diameter of the cells.
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公开(公告)号:US11959484B2
公开(公告)日:2024-04-16
申请号:US16973710
申请日:2020-05-20
Applicant: Carrier Corporation
Inventor: Yifan Qiu , David M. Rockwell , Amit Vaidya
CPC classification number: F04C29/02 , F04C18/16 , F25B31/002 , F04C2240/20 , F04C2240/30 , F04C2240/50
Abstract: Disclosed is a direct-drive refrigerant screw compressor, having: a housing; a compression chamber in the housing; a pair of rotors, each rotor of the pair of rotors being rotationally disposed in the compression chamber and including an outer surface with a screw-geared profile; wherein, for each rotor, the compressor includes: a plurality of bearing packs disposed within a respective plurality of bearing chambers; a working fluid disposed within each of the plurality of bearing chambers, the working fluid providing oil-free lubrication to the plurality of bearing packs; a plurality of bearing lubrication ports extending through the housing and into each of the plurality of bearing chambers, and configured for injecting the working fluid into each of the plurality of bearing chambers when the compressor is running.
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公开(公告)号:US11898561B2
公开(公告)日:2024-02-13
申请号:US16973724
申请日:2020-05-19
Applicant: Carrier Corporation
Inventor: Yifan Qiu , Amit Vaidya , Ulf J. Jonsson , Zaffir A. Chaudhry , David M. Rockwell
CPC classification number: F04C29/02 , F04C18/16 , F04C29/023 , F04C29/028 , F04C29/026 , F04C2210/10 , F04C2210/14 , F04C2240/20 , F04C2240/50 , F25B1/047
Abstract: Disclosed is a direct-drive refrigerant screw compressor, having: a housing; a compression chamber in the housing; a pair of rotors, each rotor of the pair of rotors being rotationally disposed in the compression chamber and including an outer surface with a screw-geared profile; a fluid being disposed in the compression chamber, the fluid consisting of a working fluid for providing lubrication to each rotor; a first port extending through the housing and configured for directing the fluid toward the compression chamber; and when the compressor is activated, each rotor rotates and the fluid is distributed about each rotor to lubricate each rotor.
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公开(公告)号:US10941776B2
公开(公告)日:2021-03-09
申请号:US15760273
申请日:2016-08-11
Applicant: Carrier Corporation
Inventor: Ramons A. Reba , Arthur Blanc , Duane C. McCormick , Mark W. Wilson , David M. Rockwell , Benjamin J. Blechman
Abstract: A compressor has a housing assembly having a plurality of ports including a suction port and a discharge A male rotor is mounted for rotation about an axis. A female rotor is enmeshed with the male rotor and mounted in the housing for rotation about an axis for drawing a flow from the suction port, compressing the flow, and discharging the compressed flow through the discharge port. A cavity group is between the discharge port and the male rotor and female rotor. The cavity group has a first member separating a plurality of cells and a foraminate cover member atop the first member.
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公开(公告)号:US10260783B2
公开(公告)日:2019-04-16
申请号:US15508420
申请日:2015-09-09
Applicant: Carrier Corporation
Inventor: Scott M. MacBain , David M. Rockwell , Ulf J. Jonsson
Abstract: In one aspect, a refrigeration system is provided. The refrigeration system includes a compressor coupled to a variable frequency drive (VFD), a condenser, an evaporator, an oil separator, and an oil conditioning circuit. The oil conditioning circuit is thermally coupled to the VFD and configured to heat oil from the oil separator with heat produced by the VFD.
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公开(公告)号:US12055143B2
公开(公告)日:2024-08-06
申请号:US17767243
申请日:2020-10-07
Applicant: CARRIER CORPORATION
Inventor: David Okhman , David M. Rockwell , Amit Vaidya , Yifan Qiu , Brandon Schwoeppe , Joshua S. Lavoie
CPC classification number: F04C18/16 , F04C28/10 , F04C29/12 , F04C2230/60 , F04C2240/30 , F04C2240/805
Abstract: A screw compressor includes an outlet housing. The outlet housing includes a passage that is configured to communicate compressed fluid from a screw rotor to a discharge. A removable cover plate is configured to cover a portion of the passage. A method of varying a volume index for a screw compressor is also disclosed.
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公开(公告)号:US20220372978A1
公开(公告)日:2022-11-24
申请号:US17767243
申请日:2020-10-07
Applicant: CARRIER CORPORATION
Inventor: David Okhman , David M. Rockwell , Amit Vaidya , Yifan Qiu , Brandon Schwoeppe , Joshua S. Lavoie
Abstract: A screw compressor includes an outlet housing. The outlet housing includes a passage that is configured to communicate compressed fluid from a screw rotor to a discharge. A removable cover plate is configured to cover a portion of the passage. A method of varying a volume index for a screw compressor is also disclosed.
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公开(公告)号:US20180216619A1
公开(公告)日:2018-08-02
申请号:US15746664
申请日:2016-08-11
Applicant: Carrier Corporation
Inventor: Scott M. MacBain , David M. Rockwell , Benjamin J. Blechman
Abstract: A compressor (20) comprises: a housing assembly (22) having a plurality of ports including a suction port (24) and a discharge port (26); a male rotor (30) mounted for rotation about an axis (500); a female rotor (32) enmeshed with the male rotor and mounted in the housing for rotation about an axis (502) for drawing a flow from the e suction port, compressing the flow, and discharging the compressed flow through the discharge port. The housing assembly comprises: a motor case (54); and a cover (60) bearing the suction port. The cover comprises a unitary piece forming: a mounting portion (63) mounted to an adjacent end (55) of the motor case, said adjacent end being large enough to pass the motor; and a fitting portion (62) extending to a rim (66) at the suction port and bearing an external groove (200).
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公开(公告)号:US11959673B2
公开(公告)日:2024-04-16
申请号:US17251062
申请日:2018-06-26
Applicant: Carrier Corporation
Inventor: Jeremy Wallet-Laily , Ulf J. Jonsson , Charbel Rahhal , Nicolas Fonte , Zaffir A. Chaudhry , David M. Rockwell , Amit Vaidya , Scott M. MacBain , Yifan Qiu , Benjamin J. Blechman
CPC classification number: F25B43/02 , F25B31/004 , F25B2341/0014 , F25B2341/0015 , F25B2341/0016
Abstract: A refrigeration system includes a compressor for compressing a refrigerant, a condenser for cooling the refrigerant, an evaporator for heating the refrigerant, and a lubrication system for providing a lubricant mist to a movable component of the compressor. The lubrication system includes an ejector arranged in fluid communication with the compressor and the evaporator, wherein the lubricant mist is carried by the refrigerant to the movable component.
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公开(公告)号:US20210247115A1
公开(公告)日:2021-08-12
申请号:US17251062
申请日:2018-06-26
Applicant: Carrier Corporation
Inventor: Jeremy Wallet-Laily , Ulf J. Jonsson , Charbel Rahhal , Nicolas Fonte , Zaffir A. Chaudhry , David M. Rockwell , Amit Vaidya , Scott M. MacBain , Yifan Qiu , Benjamin J. Blechman
Abstract: A refrigeration system includes a compressor for compressing a refrigerant, a condenser for cooling the refrigerant, an evaporator for heating the refrigerant, and a lubrication system for providing a lubricant mist to a movable component of the compressor. The lubrication system includes an ejector arranged in fluid communication with the compressor and the evaporator, wherein the lubricant mist is carried by the refrigerant to the movable component.
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