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公开(公告)号：US11578901B2
公开(公告)日：2023-02-14
申请号：US17200083
申请日：2021-03-12
发明人： Joseph M. Heger
摘要： An electric motor for a vapor compression system is disclosed. The electric motor is provided with a working fluid. The electric motor includes a housing forming cavity therein. The housing includes a rotor, a stator, and a shaft. The rotor is secured to the shaft and the stator surrounds at least a portion of the rotor. An airgap is formed between the rotor and the stator. An inlet of the housing receives the working fluid and is in fluid communication with the airgap. An outlet of the housing is in fluid communication with the airgap and receives the working fluid from the airgap. The electric motor further includes an impeller that induces flow of the working fluid between the inlet and the outlet.
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公开(公告)号：US20210273525A1
公开(公告)日：2021-09-02
申请号：US17320989
申请日：2021-05-14
摘要： Disclosed is a hermetic AC electric motor that includes harmonics shunting such that high frequency harmonics are shunted from the AC electric motor without the use of one or more high frequency filters in the associated motor drive. A related method of operating an AC electric motor includes shunting high frequency harmonics to a fluid passing through the AC electric motor. Also disclosed is a simplified variable speed motor drive system which eliminates the need for a filter for removing high frequency harmonics.
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公开(公告)号：US11892031B2
公开(公告)日：2024-02-06
申请号：US18161409
申请日：2023-01-30
CPC分类号： F16C17/024 , F16C17/042 , F16C21/00 , F16C27/02 , F16C17/20 , F16C2360/00 , F25B31/026 , F25B2400/07
摘要： A compressor includes a housing, a shaft that is rotated relative to the housing to compress a working fluid, and a foil bearing that supports the shaft. The foil bearing includes a top foil. The foil bearing is a foil gas bearing that is backed up by a ball bearing, or a mesh foil bearing with an actuator to compress a wire mesh dampener. A heat transfer circuit includes a compressor and a working fluid. The compressor includes a shaft that is rotated to compress the working fluid, and a foil bearing for supporting the shaft as it rotates.
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公开(公告)号：US11031848B2
公开(公告)日：2021-06-08
申请号：US15635637
申请日：2017-06-28
摘要： Disclosed is a hermetic AC electric motor that includes harmonics shunting such that high frequency harmonics are shunted from the AC electric motor without the use of one or more high frequency filters in the associated motor drive. A related method of operating an AC electric motor includes shunting high frequency harmonics to a fluid passing through the AC electric motor. Also disclosed is a simplified variable speed motor drive system which eliminates the need for a filter for removing high frequency harmonics.
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公开(公告)号：US10197059B2
公开(公告)日：2019-02-05
申请号：US15463218
申请日：2017-03-20
发明人： Jerry Allen Rood , Scott Joseph Smerud , Keith Adam Novak , Joseph M. Heger , Derrick Lepak , Michael Gerard Benco
IPC分类号： F03C2/00 , F03C4/00 , F04C2/00 , F04C18/00 , F04C29/02 , F04C18/02 , F04C29/00 , F01C21/02 , F01C1/02 , F04C23/00
摘要： A scroll compressor orbiting scroll bearing lubrication system includes a scroll compressor crankshaft having a lubricating fluid gallery extending therethrough between a first stage orbiting scroll and a second stage orbiting scroll. The first stage employs an orbiting scroll radial bearing and an orbiting scroll hydrodynamic thrust bearing, while the second stage employs an orbiting scroll radial bearing and an orbiting scroll hydrostatic thrust bearing. Lubricating fluid is supplied to the second stage orbiting scroll radial bearing via the lubricating fluid gallery.
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公开(公告)号：US11916444B2
公开(公告)日：2024-02-27
申请号：US17320989
申请日：2021-05-14
CPC分类号： H02K11/028 , F25B31/006 , H02K1/278 , H02K3/16 , H02K9/12 , H02K9/20
摘要： Disclosed is a hermetic AC electric motor that includes harmonics shunting such that high frequency harmonics are shunted from the AC electric motor without the use of one or more high frequency filters in the associated motor drive. A related method of operating an AC electric motor includes shunting high frequency harmonics to a fluid passing through the AC electric motor. Also disclosed is a simplified variable speed motor drive system which eliminates the need for a filter for removing high frequency harmonics.
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公开(公告)号：US20230366600A1
公开(公告)日：2023-11-16
申请号：US17743317
申请日：2022-05-12
CPC分类号： F25B49/022 , F25B31/026
摘要： Re-calibrating a bearing system of a compressor includes analyzing environmental data pertaining to a compressor to detect occurrence of a calibration threshold event, and re-calibrating the bearing system based on the detected calibration threshold event by controlling placement of a shaft relative to the bearing system of the compressor.
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公开(公告)号：US09657737B2
公开(公告)日：2017-05-23
申请号：US14448382
申请日：2014-07-31
发明人： Scott Joseph Smerud , John Robert Sauls , Michael Gerard Benco , Jerry Allen Rood , Keith Adam Novak , Derrick Lepak , Joseph M. Heger
CPC分类号： F04C27/005 , F04C18/0215 , F04C23/001 , F04C23/008
摘要： A scroll compressor includes an orbiting scroll member disposed within a compressor housing. The orbiting scroll member has a substantially circular baseplate and a generally spiral wrap extending from its base. A first seal is disposed proximal to the outer periphery of the orbiting scroll baseplate to provide an external seal between the baseplate and the housing. A second seal is disposed radially inward from the first seal to provide an internal seal between the baseplate and the housing. A space between the internal seal and the external seal defines a balance piston chamber. The balance piston chamber is pressurized via a high or intermediate pressure oil source to reduce thrust loading on the baseplate caused by an axial pressure differential across the baseplate.
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9.发明申请公开(公告)号：US20200378657A1
公开(公告)日：2020-12-03
申请号：US16427763
申请日：2019-05-31
摘要： A heat transfer circuit that includes a compressor with a gas bearing, a condenser, an expander, an evaporator, a lubricant stream, and a heat source. The lubricant stream receives a portion of the working fluid and supplies the portion of the working fluid to the gas bearing of the compressor. A method of supplying lubricant to a gas bearing of a compressor in a heat transfer circuit includes compressing and further heating at least a portion of the working fluid heated in the evaporator, and supplying the compressed and further heated working fluid to the gas bearing of the compressor. A method of the supplying lubricant to a gas bearing of a compressor in a heat circuit includes generating compressed gaseous working fluid within a lubricant stream.
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公开(公告)号：US20190063461A1
公开(公告)日：2019-02-28
申请号：US15873560
申请日：2018-01-17
发明人： Christopher Espelien , Joseph M. Heger , Daniel A. Strange , Russell T. Abbott , Robert S. Bakkestuen
IPC分类号： F04D29/58 , F04D29/058
摘要： A variable orifice flow device controls the flow of refrigerant into a compressor motor housing in a compressor. The variable orifice flow device may include, for example, an electronic expansion valve, a thermal expansion valve, or a shuttling valve controlling the flow of refrigerant into a compressor motor housing. One or more flows of refrigerant may be through a fixed orifice, a valve seat of the variable orifice flow device, or leakage through a seal of the compressor motor housing, providing a baseline refrigerant flow to the inside of the compressor motor housing in addition to the flow through the variable orifice flow device.
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