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公开(公告)号：US11942851B2
公开(公告)日：2024-03-26
申请号：US16755108
申请日：2018-10-10
Applicant: Johnson Controls Technology Company
Inventor： Katelynn Louise Crissman , Ian Michael Casper , David Andrew Bradshaw , Matthew Lee Heisey , Tyler Alexander Wolgemuth , Paul William Snell
CPC classification number: H02K5/203 , H02K1/20 , H02K9/19 , F25B1/04 , F25B31/006 , F25B49/025
Abstract: A system for cooling a hermetic motor includes a motor cooling refrigerant flow path configured to direct refrigerant from a condenser disposed along a refrigerant loop to a hermetic motor, and from the hermetic motor back to the refrigerant loop, and a housing of the hermetic motor disposed along the motor cooling refrigerant flow path and configured to receive the refrigerant from the condenser, wherein the housing of the hermetic motor comprises an annulus surrounding at least a portion of a stator of the hermetic motor, and wherein the annulus comprises a plurality of openings configured to direct refrigerant toward the stator and into a cavity of the housing of the hermetic motor.
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Patent Agency Ranking
公开(公告)号：US20200240685A1
公开(公告)日：2020-07-30
申请号：US16652581
申请日：2018-10-04
Applicant: Johnson Controls Technology Company
Inventor： David Andrew Bradshaw , Andrew Michael Welch , Curtis C. Crane , Calvin Andrew Nelson
Abstract: Embodiments of the present disclosure are directed toward purge units of vapor compression systems, and methods of control thereof, that improve efficiency by selectively activating and deactivating the purge unit in response to one or more conditions to, for example, enable refrigerant-to-air ratios within the purge unit within certain industry standards while still minimizing the durations of the purge cycles. For example, in certain embodiments, these conditions may include conditions within the chiller condenser, time since last purge activation, time since last venting of non-condensables, and combinations thereof. By reducing an amount of time that the purge unit would be active without removing a substantial amount non-condensables from the vapor compression system, present embodiments reduce the power consumption of the purge unit, as well as the vapor compression system as a whole, while still being responsive to prevent or mitigate a loss of efficiency due to a substantial accumulation of non-condensables in the condenser of the vapor compression system.
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公开(公告)号：US11466912B2
公开(公告)日：2022-10-11
申请号：US16652587
申请日：2018-10-04
Applicant: Johnson Controls Technology Company
Inventor： David Andrew Bradshaw , Andrew Michael Welch , Curtis C. Crane , Calvin Andrew Nelson
Abstract: Embodiments of the present disclosure are directed toward purge units of vapor compression systems, and methods of control thereof, that selectively activate and deactivate the purge unit in response to one or more conditions to, for example, control refrigerant-to-air ratios while still minimizing the durations of the purge cycles. For example, in certain embodiments, these conditions may include conditions within the chiller condenser, time since last purge activation, time since last venting of non-condensables, and combinations thereof. By reducing an amount of time that the purge unit would be active without removing a substantial amount non-condensables from the vapor compression system, present embodiments reduce the power consumption of the purge unit, as well as the vapor compression system as a whole, while still being responsive to prevent or mitigate a loss of efficiency due to a substantial accumulation of non-condensables in the condenser of the vapor compression system.
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公开(公告)号：US20200240690A1
公开(公告)日：2020-07-30
申请号：US16652587
申请日：2018-10-04
Applicant: Johnson Controls Technology Company
Inventor： David Andrew Bradshaw , Andrew Michael Welch , Curtis C. Crane , Calvin Andrew Nelson
Abstract: Embodiments of the present disclosure are directed toward purge units of vapor compression systems, and methods of control thereof, that improve efficiency by selectively activating and deactivating the purge unit in response to one or more conditions to, for example, enable refrigerant-to-air ratios within the purge unit within certain industry standards while still minimizing the durations of the purge cycles. For example, in certain embodiments, these conditions may include conditions within the chiller condenser, time since last purge activation, time since last venting of non-condensables, and combinations thereof. By reducing an amount of time that the purge unit would be active without removing a substantial amount non-condensables from the vapor compression system, present embodiments reduce the power consumption of the purge unit, as well as the vapor compression system as a whole, while still being responsive to prevent or mitigate a loss of efficiency due to a substantial accumulation of non-condensables in the condenser of the vapor compression system.
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公开(公告)号：US20200240677A1
公开(公告)日：2020-07-30
申请号：US16755108
申请日：2018-10-10
Applicant: Johnson Controls Technology Company
Inventor： Katelynn Louise Crissman , Ian Michael Casper , David Andrew Bradshaw , Matthew Lee Heisey , Tyler Alexander Wolgemuth , Paul William Snell
Abstract: A system for cooling a hermetic motor includes a motor cooling refrigerant flow path configured to direct refrigerant from a condenser disposed along a refrigerant loop to a hermetic motor, and from the hermetic motor back to the refrigerant loop, and a housing of the hermetic motor disposed along the motor cooling refrigerant flow path and configured to receive the refrigerant from the condenser, wherein the housing of the hermetic motor comprises an annulus surrounding at least a portion of a stator of the hermetic motor, and wherein the annulus comprises a plurality of openings configured to direct refrigerant toward the stator and into a cavity of the housing of the hermetic motor.
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公开(公告)号：US11635238B2
公开(公告)日：2023-04-25
申请号：US16652581
申请日：2018-10-04
Applicant: Johnson Controls Technology Company
Inventor： David Andrew Bradshaw , Andrew Michael Welch , Curtis C. Crane , Calvin Andrew Nelson
Abstract: Embodiments of the present disclosure are directed toward purge units of vapor compression systems, and methods of control thereof, that improve efficiency by selectively activating and deactivating the purge unit in response to one or more conditions to, for example, enable refrigerant-to-air ratios within the purge unit within certain industry standards while still minimizing the durations of the purge cycles. For example, in certain embodiments, these conditions may include conditions within the chiller condenser, time since last purge activation, time since last venting of non-condensables, and combinations thereof. By reducing an amount of time that the purge unit would be active without removing a substantial amount non-condensables from the vapor compression system, present embodiments reduce the power consumption of the purge unit, as well as the vapor compression system as a whole.
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