-
公开(公告)号：US20250035366A1
公开(公告)日：2025-01-30
申请号：US18358287
申请日：2023-07-25
Applicant: Heatcraft Refrigeration Products LLC
Inventor： Shitong Zha , Douglas S. Cole
Abstract: The disclosure provides a method of operating a refrigeration system. The method includes operating a first low-temperature evaporator in a refrigeration mode, where the first low-temperature evaporator receives refrigerant from a flash tank. The method includes operating a second low-temperature evaporator in a refrigeration mode, where the first low-temperature evaporator receives refrigerant from the flash tank. The method includes causing the first low-temperature evaporator to operate in the defrost mode by: closing a first controllable valve in a refrigerant conduit that couples the first low-temperature evaporator to a low-temperature compressor of the refrigeration system, and directing the refrigerant exiting the first low-temperature evaporator to be received by the second low-temperature evaporator.
-
公开(公告)号：US12203693B2
公开(公告)日：2025-01-21
申请号：US17844668
申请日：2022-06-20
Applicant: Heatcraft Refrigeration Products LLC
Inventor： Shitong Zha
Abstract: A refrigeration system includes pressure-regulating valve positioned between two flash tanks and a heat exchanger is positioned downstream from a medium temperature compressor. After determining that operation of an evaporator in a defrost mode is indicated, the system causes the evaporator to operate in the defrost mode by adjusting the pressure-regulating valve to increase a pressure of a first flash tank relative to a pressure of a second flash tank, allowing flow of refrigerant from the first flash tank to the heat exchanger, and allowing refrigerant heated by the heat exchanger to flow to the first evaporator.
-
公开(公告)号：US12203687B2
公开(公告)日：2025-01-21
申请号：US18527078
申请日：2023-12-01
Applicant: Heatcraft Refrigeration Products LLC
Inventor： Shitong Zha , Douglas Cole
Abstract: A cooling system partially floods the low temperature low side heat exchangers (e.g., freezers) in the system. An accumulator is positioned between the low temperature low side heat exchangers and the low temperature compressor. The accumulator collects the refrigerant (both liquid and vapor) from the flooded low temperature low side heat exchangers. Refrigerant discharged by the low temperature compressor is fed through the accumulator so that heat can be transferred to the refrigerant collected in the accumulator. As a result, the temperature of the refrigerant discharged by the low temperature compressor drops before that refrigerant reaches the medium temperature compressor.
-
公开(公告)号：US12152813B2
公开(公告)日：2024-11-26
申请号：US18478849
申请日：2023-09-29
Applicant: HEATCRAFT REFRIGERATION PRODUCTS LLC
Inventor： Karthick Kuppusamy , Sangameshwaran Sadhasivam
IPC: F25B19/04
Abstract: An adiabatic cooling system includes a condenser coil and at least one mist chamber positioned around the condenser coil such that at least a portion of intake air for the adiabatic cooling system passes through the mist chamber prior to contacting the condenser coil. The at least one mist chamber includes a first cooling pad with a first intake-side face and a first output-side face and a second cooling pad with a first intake-side face and a first output-side face. The second-intake side face of the second cooling pad faces the first output-side face of the first cooling pad and is separated from the first-output side face of the first cooling pad by a gap. The gap includes a mist of water.
-
公开(公告)号：US11982480B2
公开(公告)日：2024-05-14
申请号：US17884243
申请日：2022-08-09
Applicant: HEATCRAFT REFRIGERATION PRODUCTS LLC
Inventor： Douglas Cole , Steve Pfister
CPC classification number: F25B49/022 , F25B31/00 , F25B41/20 , F25B2400/0401 , F25B2400/077 , F25B2500/07 , F25B2500/08
Abstract: A refrigeration system includes a high-pressure side with a gas cooler configured, while the refrigeration system is powered by a main power supply and is operating to provide refrigeration, to cool refrigerant on the high-pressure side. The refrigeration system includes a low-pressure side with one or more evaporators. The refrigeration system includes an auxiliary compressor coupled to a backup power supply. An input of the auxiliary compressor is coupled to fluid conduit of the low-pressure side, and an output of the auxiliary compressor is coupled to fluid conduit of the high-pressure side. A controller is communicatively coupled to the auxiliary compressor. After determining that the main power supply is unavailable, the controller causes the auxiliary compressor to turn on to move refrigerant from the low-pressure side to the high-pressure side.
-
Patent Agency Ranking
公开(公告)号：US20240125528A1
公开(公告)日：2024-04-18
申请号：US18393212
申请日：2023-12-21
Applicant: Heatcraft Refrigeration Products LLC
Inventor： Nataraj Hariharan
CPC classification number: F25B47/02 , F25B39/00 , F25B41/20 , F25B41/31 , F25B49/02 , F25B2347/02 , F25B2600/2515 , F25B2700/197 , F25B2700/21175
Abstract: An HVAC system includes a unit cooler, which includes a first evaporator coil, a second evaporator coil, and a blower. The HVAC system further includes a first sensor, a second sensor, a first valve, a second valve, and a controller. The controller actuates the blower to direct air to flow over the first evaporator coil and the second evaporator coil, receives measurements from the first sensor and the second sensor, initiates a defrost cycle for the first evaporator coil by transmitting instructions to close the first valve to prevent the flow of refrigerant into the first evaporator coil, transmits instructions to open the first valve when the defrost cycle for the first evaporator coil has terminated, and initiates a defrost cycle for the second evaporator coil by transmitting instructions to close the second valve to prevent the flow of refrigerant into the second evaporator coil.
-
公开(公告)号：US20240077241A1
公开(公告)日：2024-03-07
申请号：US18497815
申请日：2023-10-30
Applicant: Heatcraft Refrigeration Products LLC
Inventor： Karthick Kuppusamy
CPC classification number: F25B49/027 , F25B39/04 , F28G7/00 , F25B2700/195
Abstract: An adiabatic cooling system includes a condenser coil and one or more adiabatic pads positioned such that intake air for the adiabatic cooling system passes through the pads prior to contacting the condenser coil. The adiabatic cooling system includes a vibration device attached to each adiabatic pad. A controller is communicatively coupled to the vibration device for each of the adiabatic pads. The controller determines that cleaning of the adiabatic pads is needed. In response to detecting cleaning is needed, the controller causes the vibration device attached to each adiabatic pad to vibrate.
-
公开(公告)号：US11920840B2
公开(公告)日：2024-03-05
申请号：US17085003
申请日：2020-10-30
Applicant: Heatcraft Refrigeration Products LLC
Inventor： Nataraj Hariharan
CPC classification number: F25B47/02 , F25B39/00 , F25B41/20 , F25B41/31 , F25B49/02 , F25B2347/02 , F25B2600/2515 , F25B2700/197 , F25B2700/21175
Abstract: An HVAC system includes a unit cooler, which includes a first evaporator coil, a second evaporator coil, and a blower. The HVAC system further includes a first sensor, a second sensor, a first valve, a second valve, and a controller. The controller actuates the blower to direct air to flow over the first evaporator coil and the second evaporator coil, receives measurements from the first sensor and the second sensor, initiates a defrost cycle for the first evaporator coil by transmitting instructions to close the first valve to prevent the flow of refrigerant into the first evaporator coil, transmits instructions to open the first valve when the defrost cycle for the first evaporator coil has terminated, and initiates a defrost cycle for the second evaporator coil by transmitting instructions to close the second valve to prevent the flow of refrigerant into the second evaporator coil.
-
公开(公告)号：US20240027108A1
公开(公告)日：2024-01-25
申请号：US18478849
申请日：2023-09-29
Applicant: HEATCRAFT REFRIGERATION PRODUCTS LLC
Inventor： Karthick Kuppusamy , Sangameshwaran Sadhasivam
IPC: F25B19/04
CPC classification number: F25B19/04
Abstract: An adiabatic cooling system includes a condenser coil and at least one mist chamber positioned around the condenser coil such that at least a portion of intake air for the adiabatic cooling system passes through the mist chamber prior to contacting the condenser coil. The at least one mist chamber includes a first cooling pad with a first intake-side face and a first output-side face and a second cooling pad with a first intake-side face and a first output-side face. The second-intake side face of the second cooling pad faces the first output-side face of the first cooling pad and is separated from the first-output side face of the first cooling pad by a gap. The gap includes a mist of water.
-
公开(公告)号：US20240011685A1
公开(公告)日：2024-01-11
申请号：US17857429
申请日：2022-07-05
Applicant: Heatcraft Refrigeration Products LLC
Inventor： Saravana Vaithilingam Sakthivel
IPC: F25B47/02
CPC classification number: F25B47/022 , F25B2400/23 , F25B9/008
Abstract: A refrigeration system comprises a gas cooler, a flash tank, a work recovery device located downstream from the gas cooler, one or more evaporators unit located downstream from a second outlet of the work recovery device, and a controller communicatively coupled to the work recovery device.
-
-
-
-
-
-
-
-
-
Search Results
287
records
(took 0.037 seconds)
