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公开(公告)号：US20180223849A1
公开(公告)日：2018-08-09
申请号：US15425428
申请日：2017-02-06
发明人： Roy J. Doepker , Robert C. Stover
CPC分类号： F04C29/0085 , F04C18/0215 , F04C18/0223 , F04C23/008 , F04C27/001 , F04C2240/40 , F04C2240/50 , F04C2240/60
摘要： A compressor may include a first compression member, a second compression member, and a motor assembly. The second compression member is movable relative to the first compression member and cooperates with the first compression member to define a compression pocket therebetween. The motor assembly drives one of the first and second compression members relative to the other one of the first and second compression members. The motor assembly includes a stator and a rotor. The rotor is rotatable relative to the stator about a rotational axis. The stator surrounds the rotational axis. The rotor may include magnets that are arranged around the rotational axis. The magnets may be spaced apart from the stator in an axial direction that is parallel to the first rotational axis.
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公开(公告)号：US20180223842A1
公开(公告)日：2018-08-09
申请号：US15425374
申请日：2017-02-06
发明人： Robert C. Stover , Roy J. Doepker
CPC分类号： F04C18/023 , F04C23/001 , F04C23/008 , F04C29/0085 , F04C29/02 , F04C29/12 , F04C2240/30 , F04C2240/40 , F04C2240/50 , F04C2240/52 , F04C2240/809
摘要： A compressor may include a shell, first and second compression mechanisms, and first and second motor assemblies. The first compression mechanism may include first and second compression members that are rotatable relative to the shell about first and second rotational axes, respectively. The first motor assembly may be disposed within the shell and may include a first rotor attached to the first compression member and surrounding the first and second compression members. The second compression mechanism may include third and fourth compression members that are rotatable relative to the shell about third and fourth rotational axes, respectively. The second motor assembly may be disposed within the shell and may include a second rotor attached to the third compression member and surrounding the third and fourth compression members.
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公开(公告)号：US20180129233A1
公开(公告)日：2018-05-10
申请号：US15633657
申请日：2017-06-26
发明人： Lawrence KATES
摘要： A monitoring system for a heating, ventilation, or air conditioning (HVAC) system of a residential or commercial building includes an evaporator unit device and four temperature sensors. The evaporator unit device includes an electrical sensor that measures current supplied to a circulator blower of the HVAC system. The measured current from the first electrical sensor is used to diagnose a problem with the circulator blower. The first temperature sensor that measures a temperature of refrigerant flowing between a condenser of the HVAC system and an expansion valve of the HVAC system. The second temperature sensor measures a temperature of refrigerant flowing between an evaporator and a compressor. The third temperature sensor measures a temperature of air flowing away from the evaporator. The fourth temperature sensor measures a temperature of air flowing toward the evaporator. The evaporator unit device transmits sensor data to a remote monitoring service over a data network.
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公开(公告)号：US09964122B2
公开(公告)日：2018-05-08
申请号：US13863744
申请日：2013-04-16
CPC分类号： F04D29/601 , B23P11/005 , B23P15/003 , F04C2/00 , Y10T29/49245
摘要： A compressor is provided and may include a shell having an inner surface and an outer surface and a bearing housing disposed within the shell and having an engagement surface opposing the inner surface. The engagement surface may include a first channel formed substantially perpendicular to a longitudinal axis of the shell and a second channel formed substantially parallel to the longitudinal axis of the shell and in communication with the first channel. The first channel and the second channel may receive a deformed portion of the shell therein to fix a position of the bearing housing relative to the shell.
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公开(公告)号：US09957963B2
公开(公告)日：2018-05-01
申请号：US14498316
申请日：2014-09-26
CPC分类号： F04C18/0284 , B22F5/10 , B22F7/062 , B22F2998/10 , C22C33/0264 , F04C18/0215 , F04C18/0253 , F04C23/008 , F04C27/005 , F04C29/0057 , F04C2230/22 , B22F3/02 , B22F3/1017
摘要： Scroll members for scroll compressors made from one or more near-net shaped powder metal processes, either wholly or partially fabricated together from sections. In certain variations, the involute scroll portion of the scroll member has a modified terminal end region. The terminal end region may include an as-sintered coupling feature comprising a tip component that forms a contact surface for contacting an opposing scroll member during compressor operation. The tip component can be a tip seal or a tip cap received by the as-sintered coupling feature. The tip cap may be sinter-bonded or otherwise coupled to the terminal end region. In other variations, a terminal end region may comprise a second material including a tribological material that forms a contact surface. Methods of making such scroll members for scroll compressors are also provided.
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公开(公告)号：US09938977B2
公开(公告)日：2018-04-10
申请号：US14994352
申请日：2016-01-13
CPC分类号： F04C29/025 , F04C18/0215 , F04C23/008
摘要： A compressor is provided and may include a shell, a motor assembly, a driveshaft, a pump housing, and a pumping mechanism. The motor assembly may be disposed within the shell. The driveshaft may be drivingly engaged with the motor assembly. The pump housing may be rotatably supported by the driveshaft for rotation relative to the shell. The pumping mechanism may be disposed within the pump housing and rotating with or orbiting about the driveshaft.
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公开(公告)号：US09933842B2
公开(公告)日：2018-04-03
申请号：US15487426
申请日：2017-04-13
CPC分类号： G06F1/3287 , G06F8/61 , G06F8/654 , G06F9/223 , G06F12/0246 , G06F13/4022 , G06F13/4282 , G06F2212/7201 , H02M1/32 , H02M1/36 , H02M1/42 , H02M1/4225 , H02M2001/0012 , H02M2001/327 , H02M2001/4291 , H02P29/02
摘要： A circuit for driving a motor of a compressor includes a microcontroller, which includes an op-amp, a comparator, a first serial interface, and a first dedicated pin. The op-amp amplifies a value indicating current in a power factor correction converter, which includes a power switch. The comparator asserts a comparison signal in response to the amplified value exceeding a reference value. The comparison signal is output on the first dedicated pin. A programmable logic device (PLD) includes a second serial interface in communication with the first serial interface and a second dedicated pin. The comparison signal is received on the second dedicated pin and the PLD receives control messages from the microcontroller via the second serial interface. The PLD sets a value in an off-time register based on a control message from the microcontroller. The PLD controls the power switch according to the comparison signal and the off-time register.
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公开(公告)号：US09912263B2
公开(公告)日：2018-03-06
申请号：US15645983
申请日：2017-07-10
CPC分类号： H02P6/06 , H02M1/4225 , H02M3/1584 , H02P6/20 , H02P6/34 , Y02B70/126
摘要： A control system for a refrigeration system motor includes an angle determination module that generates an output rotor angle indicating a desired angle of a rotor of the motor. A control module controls the motor based on the output rotor angle. An estimator module determines an estimated rotor angle. A transition module generates a transition signal in response to convergence of the estimator module. Upon startup, the angle determination module generates the output rotor angle based on a first rotor angle. Upon generation of the transition signal, the angle determination module generates the output rotor angle based on the first rotor angle and the estimated rotor angle. After generation of the transition signal, the angle determination module reduces a contribution of the first rotor angle to the output rotor angle over time until the output rotor angle is based on the estimated rotor angle independent of the first rotor angle.
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公开(公告)号：US20180001740A1
公开(公告)日：2018-01-04
申请号：US15635779
申请日：2017-06-28
CPC分类号： B60H1/3205 , B60H1/005 , B60H2001/3272 , B60H2001/3292 , F25B49/022 , F25B2500/26 , F25B2500/29 , F25B2600/0252
摘要： A refrigeration system includes a startup mode control module that receives at least one parameter associated with operation of a compressor of the refrigeration system, determines whether the at least one parameter indicates that the compressor is in a high ambient temperature startup condition, and selects, based on the determination, between a normal startup mode and a high ambient temperature startup mode. A compressor control module operates the compressor in the normal startup mode in response to the startup mode control module selecting the normal startup mode, operates the compressor in the high ambient temperature startup mode in response to the startup mode control module selecting the high ambient temperature startup mode, and transitions from the high ambient temperature startup mode to the normal startup mode after a predetermined period associated with operating in the high ambient temperature startup mode.
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公开(公告)号：US20180001738A1
公开(公告)日：2018-01-04
申请号：US15635688
申请日：2017-06-28
CPC分类号： B60H1/3205 , B60H1/005 , B60H1/3216 , B60H2001/3238 , B60H2001/3258 , B60H2001/3272 , F04B35/04 , F04B49/02 , F04B49/20 , F04B2207/03 , F04C18/0215 , F04C28/06 , F04C28/08 , F25B49/022 , F25B2500/26 , F25B2500/28 , F25B2500/31 , F25B2600/0252
摘要： A refrigeration system includes a startup mode control module that receives an off time of a compressor of the refrigeration system and an ambient temperature, determines whether the off time and the ambient temperature indicate that the compressor is in a flooded condition, and selects, based on the determination, between a normal startup mode and a flooded startup mode. A compressor control module operates the compressor in the normal startup mode in response to the startup mode control module selecting the normal startup mode, in the flooded startup mode in response to the startup mode control module selecting the flooded startup mode, and transitions from the flooded startup mode to the normal startup mode after a predetermined period associated with operating in the flooded startup mode. The compressor is operated at a first speed in the normal startup mode and at a second speed in the flooded startup mode.
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