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公开(公告)号：US20240068725A1
公开(公告)日：2024-02-29
申请号：US17823832
申请日：2022-08-31
申请人： Carrier Corporation
CPC分类号： F25B49/022 , F16C32/0474
摘要： A vapor compression system and method for operating the vapor compression system are provided. The vapor compression system includes a compressor, a condenser, and at least one check valve disposed between the compressor and the condenser. The method provides for the transmitting of a shutdown command to the compressor, the compressor including a rotating shaft and a magnetic bearing, the magnetic bearing having an active mode and an inactive mode, the magnetic bearing levitating the rotating shaft in the active mode. The method further provides for the maintaining of the magnetic bearing in the active mode during a minimum time period, the magnetic bearing switching from the active mode to the inactive mode after the minimum time period is reached.
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公开(公告)号：US10823198B2
公开(公告)日：2020-11-03
申请号：US16343958
申请日：2017-10-23
申请人： Carrier Corporation
发明人： Vishnu M. Sishtla , Kai Deng , Zhanbo Du , Xili Liu , Scott A. Nieforth , Biao Shu , Danni Yuan
摘要： A diffuser for a centrifugal compressor and a centrifugal compressor having the same. The diffuser (100) comprises a drive component (110), a transmission assembly (120), an adjustment assembly (130), a spool valve assembly (140) and a rear wall (150); wherein the transmission assembly is used for transmitting power produced by the drive component to the adjustment assembly, the adjustment assembly is capable of circumferentially reciprocating with respect to the rear wall and driving the spool valve assembly to reciprocate axially; and wherein a rolling element (160) is provided between the adjustment assembly and the rear wall. Intervention of a mechanism for adjusting a flow passage width is better achieved by such an arrangement in combination with an existing configuration of the diffuser; and a low-friction fit between the adjustment assembly and the rear wall is achieved by the rolling element.
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公开(公告)号：US20190271491A1
公开(公告)日：2019-09-05
申请号：US16320278
申请日：2017-08-09
申请人： Carrier Corporation
IPC分类号： F25B31/00 , F25B1/053 , F04D29/063 , F04D25/06 , F04D29/42
摘要： A vapor compression system (20, 400, 420, 440, 460, 480) has: a compressor (22) having a suction port (40) and a discharge port (42); a heat rejection heat exchanger (58) coupled to the discharge port to receive compressed refrigerant; a heat absorption heat exchanger (88); a first lubricant flowpath (120, 126; 120) from the heat rejection heat exchanger to the compressor; a second lubricant flowpath (121, 126; 121) from the heat absorption heat exchanger to the compressor; at least one lubricant pump (190; 190, 191); at least one liquid level sensor (180, 181; 180, 181, 330); and a controller (900) configured to control lubricant flow along the first lubricant flowpath and the second lubricant flowpath based output based on output of the at least one liquid level sensor.
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公开(公告)号：US20210364209A1
公开(公告)日：2021-11-25
申请号：US17045861
申请日：2019-04-08
申请人： CARRIER CORPORATION
摘要： A method of operating a heat exchanger system in which a compressor, which is drivable by a motor, is fluidly interposed between an evaporator and a condenser following receipt of a shutdown command is provided. The method includes positioning inlet guide vanes (IGVs) of the compressor in a first position in the event of at least one of a first precondition being in effect and the first and a second precondition both not being in effect. The method further includes positioning the IGVs in a second position in an event the first precondition is not in effect but the second precondition is in effect, ramping a speed of the compressor down until a third precondition takes effect, removing power from the motor and positioning the IGVs in the first position once power is removed from the motor.
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公开(公告)号：US11098934B2
公开(公告)日：2021-08-24
申请号：US16249117
申请日：2019-01-16
申请人： Carrier Corporation
发明人： Michael A. Stark , Scott A. Nieforth , Kai Deng , Haiping Ding , Yuling Shi , HongYi Li
摘要： The present utility model relates to a deflector for a condenser. The condenser has an inlet in communication with a compressor, and a deflector for guiding a refrigerant gas flow from the compressor is arranged in the condenser and at a position close to the inlet. The deflector is provided with a deflecting structure projecting toward the inlet, and the deflecting structure is configured as impermeable to the refrigerant gas flow. The present utility model further provides a condenser having the deflector for a condenser and a refrigeration system equipped with the condenser. The deflector for a condenser according to the present utility model not only can alleviate the impact of high-temperature high-pressure gas from the compressor but also can reduce noise and vibration.
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公开(公告)号：US20210239372A1
公开(公告)日：2021-08-05
申请号：US17236414
申请日：2021-04-21
申请人： Carrier Corporation
发明人： Michael A. Stark , Scott A. Nieforth , Kai Deng , Haiping Ding , Yuling Shi , HongYi Li
摘要： A deflector for a condenser. The condenser has an inlet in communication with a compressor, and a deflector for guiding a refrigerant gas flow from the compressor is arranged in the condenser and at a position close to the inlet. The deflector is provided with a deflecting structure projecting toward the inlet, and the deflecting structure is configured as impermeable to the refrigerant gas flow.
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公开(公告)号：US11923746B2
公开(公告)日：2024-03-05
申请号：US17248031
申请日：2021-01-06
申请人： Carrier Corporation
发明人： Scott A. Nieforth , Vishnu Sishtla
CPC分类号： H02K5/08 , F04C2/02 , F04C18/02 , F04D25/06 , F04D29/5806 , H02K5/1735 , H02K9/19
摘要： A shield for controlling the cooling within a hermetically cooled motor, and a compressor incorporating the shield are provided. The shield includes an insulator, at least one fastener, and a venting aperture. The insulator restricts the flow of a working fluid between a first side and a second side. The at least one fastener secures the insulator. The venting aperture controls a pressure differential between the first side and the second side. The venting aperture may include at least one hole through the insulator. The venting aperture may be provided as a hole through the insulator for the rotating shaft of the compressor.
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公开(公告)号：US11499767B2
公开(公告)日：2022-11-15
申请号：US17045861
申请日：2019-04-08
申请人： CARRIER CORPORATION
摘要： A method of operating a heat exchanger system in which a compressor, which is drivable by a motor, is fluidly interposed between an evaporator and a condenser following receipt of a shutdown command is provided. The method includes positioning inlet guide vanes (IGVs) of the compressor in a first position in the event of at least one of a first precondition being in effect and the first and a second precondition both not being in effect. The method further includes positioning the IGVs in a second position in an event the first precondition is not in effect but the second precondition is in effect, ramping a speed of the compressor down until a third precondition takes effect, removing power from the motor and positioning the IGVs in the first position once power is removed from the motor.
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公开(公告)号：US11112148B2
公开(公告)日：2021-09-07
申请号：US16320802
申请日：2017-08-10
申请人： Carrier Corporation
摘要： A vapor compression system (20; 400; 420) comprises: a compressor (22) having a suction port (40) and a discharge port (42); a heat rejection heat exchanger (58) coupled to the discharge port to receive compressed refrigerant; a heat absorption heat exchanger (88); a first lubricant flowpath (120, 126) from the heat rejection heat exchanger to the compressor; a second lubricant flowpath (121, 126) from the heat absorption heat exchanger to the compressor; at least one lubricant pump (190); and a controller (900) configured to control lubricant flow along the first lubricant flowpath and the second lubricant flowpath based on a sensed fluctuation.
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公开(公告)号：US20190219314A1
公开(公告)日：2019-07-18
申请号：US16249117
申请日：2019-01-16
申请人： Carrier Corporation
发明人： Michael A. Stark , Scott A. Nieforth , Kai Deng , Haiping Ding , Yuling Shi , HongYi Li
IPC分类号： F25B39/04
CPC分类号： F25B39/04 , F25B2339/04 , F25B2339/046 , F25B2500/12 , F25B2500/13 , F28D3/02 , F28F9/026 , F28F9/22 , F28F2265/28 , F28F2265/30
摘要： The present utility model relates to a deflector for a condenser. The condenser has an inlet in communication with a compressor, and a deflector for guiding a refrigerant gas flow from the compressor is arranged in the condenser and at a position close to the inlet. The deflector is provided with a deflecting structure projecting toward the inlet, and the deflecting structure is configured as impermeable to the refrigerant gas flow. The present utility model further provides a condenser having the deflector for a condenser and a refrigeration system equipped with the condenser. The deflector for a condenser according to the present utility model not only can alleviate the impact of high-temperature high-pressure gas from the compressor but also can reduce noise and vibration.
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