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公开(公告)号：US11821663B2
公开(公告)日：2023-11-21
申请号：US17383177
申请日：2021-07-22
Applicant: Purdue Research Foundation
Inventor： James Edward Braun , Eckhard Achim Groll , William Travis Horton , Orkan Kurtulus , Vatsal Shah
CPC classification number: F25B31/004 , G01F23/0007 , G01K3/005
Abstract: A system for measuring oil circulation ratio in a vapor-compression refrigeration system (VCRS) is provided. The system may include an oil separator configured to receive the refrigerant and oil flow from the low-pressure line of the VCRS and output a oil flow and a refrigerant flow. The system may further include an oil collector configured to receive the separated oil flow provided by the oil separator. A valve may control an oil flow from the oil collector to the low-pressure line. A level sensor may measure oil level in the oil collector. The system may close, in response to the oil being at or less than a first level, the valve to collect oil in the oil collector. The system may open, in response to the oil being at or greater than a second level, the valve to release oil from the oil collector to the low-pressure line.
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公开(公告)号：US20210164713A1
公开(公告)日：2021-06-03
申请号：US17095828
申请日：2020-11-12
Applicant: Purdue Research Foundation
Inventor： James Edward Braun , Eckhard Achim Groll , Davide Ziviani , Akash Patil , Changkuan Liang , Orkan Kurtulus
IPC: F25B45/00
Abstract: The present disclosure relates to a novel portable apparatus suitable for providing an optimized amount of refrigerant to a refrigeration system, and to methods of using the novel portable apparatus.
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Patent Agency Ranking
公开(公告)号：US12173941B2
公开(公告)日：2024-12-24
申请号：US17829002
申请日：2022-05-31
Applicant: Purdue Research Foundation
Inventor： Eckhard Achim Groll , James Edward Braun , Orkan Kurtulus , Parveen Dhillon , Vatsal Manilal Shah
Abstract: System and methods for oil circulation ratio (OCR) sensing with a suction-line accumulator are provided. The accumulator may include a sensor configured to detect the level of oil. The accumulator may further include a valve which opens when oil is at a high-level and closes when oil is at a low-level. The accumulator may measure a mass flow rate of oil in the vapor compression cycle system based on an amount of time taken to fill a portion of the accumulator. The accumulator may further determine an oil circulation ratio based on the measured time taken to fill the portion of the accumulator. The smart accumulator may output the oil circulation ratio.
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公开(公告)号：US20220026121A1
公开(公告)日：2022-01-27
申请号：US17383177
申请日：2021-07-22
Applicant: Purdue Research Foundation
Inventor： James Edward Braun , Eckhard Achim Groll , William Travis Horton , Orkan Kurtulus , Vatsal Shah
Abstract: A system for measuring oil circulation ratio in a vapor-compression refrigeration system (VCRS) is provided. The system may include an oil separator configured to receive the refrigerant and oil flow from the low-pressure line of the VCRS and output a oil flow and a refrigerant flow. The system may further include an oil collector configured to receive the separated oil flow provided by the oil separator. A valve may control an oil flow from the oil collector to the low-pressure line. A level sensor may measure oil level in the oil collector. The system may close, in response to the oil being at or less than a first level, the valve to collect oil in the oil collector. The system may open, in response to the oil being at or greater than a second level, the valve to release oil from the oil collector to the low-pressure line.
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公开(公告)号：US20250116441A1
公开(公告)日：2025-04-10
申请号：US18988769
申请日：2024-12-19
Applicant: Purdue Research Foundation
Inventor： Eckhard Achim Groll , James Edward Braun , Orkan Kurtulus , Parveen Dhillon , Vatsal Manilal Shah
Abstract: System and methods for oil circulation ratio (OCR) sensing with a suction-line accumulator are provided. The accumulator may include a sensor configured to detect the level of oil. The accumulator may further include a valve which opens when oil is at a high-level and closes when oil is at a low-level. The valve may release accumulated oil into the suction-line based on a level-sensor inside the accumulator.
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公开(公告)号：US11644224B2
公开(公告)日：2023-05-09
申请号：US17095828
申请日：2020-11-12
Applicant: Purdue Research Foundation
Inventor： James Edward Braun , Eckhard Achim Groll , Davide Ziviani , Akash Patil , Changkuan Liang , Orkan Kurtulus
IPC: F25B45/00
CPC classification number: F25B45/00 , F25B2345/003 , F25B2345/006
Abstract: An apparatus for providing an optimized amount of refrigerant to a refrigeration system includes three valves coupled with a fluid coupling, the first valve being coupled between the fluid coupling and an inlet of a refrigerant source, the second valve being coupled between the fluid coupling and an outlet of the refrigerant source, the third valve being coupled between the fluid coupling and the refrigeration system, the fluid coupling having a refrigerant chamber operable to store a volume of refrigerant to selectively provide the volume of refrigerant to the refrigeration system upon operation of the first, second, and third valves.
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公开(公告)号：US20220390156A1
公开(公告)日：2022-12-08
申请号：US17829002
申请日：2022-05-31
Applicant: Purdue Research Foundation
Inventor： Eckhard Achim Groll , James Edward Braun , Orkan Kurtulus , Parveen Dhillon , Vatsal Manilal Shah
Abstract: System and methods for OCR sensing with a suction-line accumulator are provided. The accumulator may include a sensor configured to detect the level of oil. The accumulator may further include a valve which opens when oil is at a high-level and closes when oil is at a low-level. The accumulator may measure a mass flow rate of oil in the vapor compression cycle system based on an amount of time taken to fill a portion of the accumulator. The accumulator may further determine an oil circulation ratio based on the measured time taken to fill the portion of the accumulator. The smart accumulator may output the oil circulation ratio.
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