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公开(公告)号：US20180187937A1
公开(公告)日：2018-07-05
申请号：US15858861
申请日：2017-12-29
Applicant: TRANE INTERNATIONAL INC.
Inventor： Stephen A. Kujak
CPC classification number: F25B49/005 , F04B43/009 , F24F11/36 , F25B45/00 , F25B2500/222 , G01M3/26
Abstract: A detection system and method of detection directed towards the detection of refrigerant leaking from a refrigerant circuit in a heating, ventilation, air condition, and refrigeration (HVACR) system. The system including a refrigerant circuit utilizes a working fluid that also contains an additive fluid. The system also includes a detection device that can detect the additional fluid external to the refrigerant circuit. A method of detecting leaking refrigerant is includes adding a detectable fluid to a refrigerant circuit.
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公开(公告)号：US09868888B2
公开(公告)日：2018-01-16
申请号：US15419037
申请日：2017-01-30
Applicant: TRANE INTERNATIONAL INC.
Inventor： Stephen A. Kujak , Kenneth J. Schultz
IPC: C09K5/04
CPC classification number: C09K5/045 , C09K2205/122 , C09K2205/126 , C09K2205/22 , C09K2205/40
Abstract: Refrigerant compositions are described, which can be used for example, in refrigeration, air conditioning, and/or heat pump systems which for example, can be incorporated into a heating, ventilation and air conditioning (HVAC) system or unit. The refrigerant composition includes an amount of a R125 refrigerant, an amount of a R32 refrigerant, and an amount of a R1234yf refrigerant, where the R32 refrigerant has higher flammability than the R125 refrigerant, and the R1234yf refrigerant has higher flammability than the R125 refrigerant.
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公开(公告)号：US20250026974A1
公开(公告)日：2025-01-23
申请号：US18779799
申请日：2024-07-22
Applicant: TRANE INTERNATIONAL INC.
Inventor： Michael PETERSEN , Stephen A. Kujak , Kenneth J. Schultz , Alexander Schmig
Abstract: A refrigerant composition includes R1132(E) refrigerant, a second refrigerant, and a third refrigerant. The second refrigerant is one of R1234ze(E) refrigerant, R134a refrigerant, or R1234yf refrigerant. The third refrigerant is one of R32 refrigerant, R1132a refrigerant, R1123 refrigerant, and CO2. The refrigerant composition has a GWP of at or about or less than 750. A method of making a refrigerant composition for an HVACR system includes mixing an amount of R1132(E) refrigerant, an amount of a second refrigerant, and an amount of a third refrigerant. A method of retrofitting an HVACR system having an existing refrigerant composition includes adding at least one of R1132(E) refrigerant, a second refrigerant, and a third refrigerant to the existing refrigerant composition to obtain a retrofit refrigerant composition.
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公开(公告)号：US20240288206A1
公开(公告)日：2024-08-29
申请号：US18656840
申请日：2024-05-07
Applicant: TRANE INTERNATIONAL INC.
Inventor： Dermott Crombie , Stephen A. Kujak
CPC classification number: F25B43/00 , F25B45/00 , F25B2345/002
Abstract: Methods, systems and apparatuses are described that are directed to on-site recovery and/or repurposing of refrigerant, where an original refrigerant is converted into a refrigerant different from the original refrigerant. The refrigerant different from the original refrigerant can have relatively lower global warming potential (GWP) than the original refrigerant. The recovery and/or repurposing can be implemented for example in a refrigeration circuit, such as for example in general cooling and/or heating applications, which may be embodied in a heating, venting, and air conditioning (HVAC) system and/or unit, in a transport refrigeration system and/or unit, as well as in commercial, residential and/or industrial cooling and/or heating applications.
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公开(公告)号：US20240084181A1
公开(公告)日：2024-03-14
申请号：US17942661
申请日：2022-09-12
Applicant: TRANE INTERNATIONAL INC.
Inventor： Michael Petersen , Stephen A. Kujak , Kenneth J. Schultz
IPC: C09K5/04
CPC classification number: C09K5/045 , C09K2205/122
Abstract: A refrigerant composition includes R1225ye(E) refrigerant, a second refrigerant that is one of R1234ze(E) refrigerant and R32 refrigerant, and a third refrigerant that is one of R227ea refrigerant, R125 refrigerant, and R1234yf refrigerant. The refrigerant composition has a GWP of at or less than about 2000. A method of making a refrigerant composition includes mixing at least an amount of R1225ye(E) refrigerant, an amount of a second refrigerant, and an amount of a third refrigerant to obtain a refrigerant composition that has a GWP of at or about or less than 2000. A method of retrofitting a refrigerant composition in an HVACR system includes adding an amount of at least one refrigerant to a refrigerant composition to produce a retrofit refrigerant composition that includes R1225ye(E) refrigerant, a second refrigerant, and a third refrigerant.
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Patent Agency Ranking
公开(公告)号：US20230394601A1
公开(公告)日：2023-12-07
申请号：US18177629
申请日：2023-03-02
Applicant: Trane International Inc.
Inventor： Michael Sean Day , Matthew M. Corulli , Stephen A. Kujak , Ronald Maurice Cosby
CPC classification number: G06Q50/06 , G06F1/3203 , H02J3/38 , H02J3/466 , H02J13/00028 , H02J3/004 , H02J3/003 , H02J2300/24 , H02J2203/20
Abstract: Embodiments of systems and methods for power demand management are described herein. More specifically, embodiments comprise systems and methods for powering, controlling, and/or operating various types of controllable load for integration with power fluctuations from intermittent power generation plants, such as photovoltaic arrays and wind turbine farms.
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公开(公告)号：US11162720B2
公开(公告)日：2021-11-02
申请号：US15750732
申请日：2016-08-11
Applicant: TRANE INTERNATIONAL INC.
Inventor： Dermott Crombie , Stephen A. Kujak
Abstract: A method of converting a refrigerant includes recovering a refrigerant from a refrigeration unit with an evacuation pump and containing the recovered refrigerant in a container. The method also includes testing the recovered refrigerant and converting the recovered refrigerant. The converted refrigerant is different from the recovered refrigerant. A system for converting a refrigerant includes an evacuation pump, a container, and one or more refrigerant containers. The evacuation pump and container are configured to recover a refrigerant from a refrigeration unit. The one or more containers deliver one or more refrigerant components into the container to convert the recovered refrigerant.
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公开(公告)号：US20210033323A1
公开(公告)日：2021-02-04
申请号：US16527909
申请日：2019-07-31
Applicant: TRANE INTERNATIONAL INC.
Inventor： Stephen A. Kujak , Kenneth J. Schultz , Elyse M. Sorenson , Morgan Elizabeth Herried Leehey
Abstract: A heat transfer circuit that includes a main flow path for a working fluid that extends through a compressor, a condenser, an expander, and an evaporator. The working fluid includes CF3I. The heat transfer circuit also includes an additive stream configured to supply additive for the CF3I to the working fluid in the main flow path based on a discharge temperature of the compressor. A method for operating a heat transfer circuit that includes directing a working fluid including CF3I through a main flow path of the heat transfer circuit. The method also includes changing a concentration of additive for the CF3I based on a discharge temperature of the working fluid from the compressor.
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公开(公告)号：US10443900B2
公开(公告)日：2019-10-15
申请号：US15311777
申请日：2016-01-08
Applicant: TRANE INTERNATIONAL INC.
Inventor： Stephen A. Kujak , Kenneth J. Schultz , Ronald Maurice Cosby, II
Abstract: Embodiments as disclosed herein are directed to a heat pump that employs at least two different refrigerants, each of which is optimized for either a cooling operation mode or a heating operation mode. The embodiments as disclosed herein can help increase the capacity and/or efficiency of a heat pump in both the cooling operation mode and the heating operation mode. In addition, the embodiments as disclosed herein may also eliminate the need for a ground source in a relatively low ambient temperature environment.
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公开(公告)号：US10214670B2
公开(公告)日：2019-02-26
申请号：US14938991
申请日：2015-11-12
Applicant: TRANE INTERNATIONAL INC.
Inventor： Stephen A. Kujak , Kenneth J. Schultz
Abstract: Compositions and methods are described for reducing flammability in a heating, ventilation, and air conditioning (HVAC) system having R32 refrigerant included in the refrigerant composition. Refrigerant compositions and methods of use are described which can be used for retrofitting, servicing, controlling flammability, improving performance, lubricant solubility and miscibility, and improving the safety of an HVAC system.
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