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公开(公告)号：US11220620B2
公开(公告)日：2022-01-11
申请号：US16891900
申请日：2020-06-03
Applicant: TRANE INTERNATIONAL INC.
Inventor： Kenneth J. Schultz , Stephen A. Kujak
Abstract: Refrigerant compositions for an HVACR system that includes R1123, R32 and at least one more refrigerant. The refrigerant composition has a reduced GWP of about or less than 1500. Some of the refrigerant composition may be suitable for replacing R410A, R32, and/or R22. Methods for making the refrigerant composition including mixing an amount of R1123, and amount of R32, and an amount of at least one more refrigerant. Methods of retrofitting an existing refrigerant composition include adding an amount of at least one refrigerant to an existing refrigerant composition to produce a retrofitted refrigerant composition. The retrofitted refrigerant composition includes at least R1123 and R32.
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公开(公告)号：US20210341190A1
公开(公告)日：2021-11-04
申请号：US17246233
申请日：2021-04-30
Applicant: TRANE INTERNATIONAL INC.
Inventor： Ryan E. Doud , Marcos Eric Perez-Blanco , Elyse M. Sorenson , Abolfazl Maneshi , Lee L. Sibik , Erica L. Gallant , John R. Wold , Kenneth J. Schultz
Abstract: Purge systems for heating, ventilation, air conditioning, and refrigeration (HVACR) circuits in chillers can use adsorbent and/or membranes to separate refrigerant from non-condensable gases, allowing the non-condensables to be exhausted while the working fluid can be recovered and returned to the HVACR circuit. The purge systems can include one or more separation chambers including either an adsorbent material or a selectively permeable membrane. The selectively permeable membrane can be solubility-based for its selectivity. Optionally, a pusher pump can be upstream of the separation chambers to pressurize the purge gas through the purge system, including in the separation chamber. The purge system can be controlled using a model correlating pressure differentials in the purge system with purge gas conditions such as non-condensable and working fluid concentrations.
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公开(公告)号：US20170137681A1
公开(公告)日：2017-05-18
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：US11231205B2
公开(公告)日：2022-01-25
申请号：US15781943
申请日：2016-12-08
Applicant: TRANE INTERNATIONAL INC.
Inventor： Ronald Maurice Cosby, II , Stephen A. Kujak , Kenneth J. Schultz
Abstract: Heat is recovered from a heat source to heat water to high temperatures. Apparatuses, systems and methods are described to heat water to a high temperature by using heat, such as may be considered in some instances as waste heat, recovered from a heat source. The methods, systems, and apparatuses described utilize low pressure refrigerant(s) as a fluid to provide a refrigeration cycle that utilizes a source of heat to heat water to a high temperature. The refrigeration cycle can be with or without a cascade cycle. The refrigerant cycle in some examples uses an oil free compressor.
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公开(公告)号：US11078392B2
公开(公告)日：2021-08-03
申请号：US15858896
申请日：2017-12-29
Applicant: TRANE INTERNATIONAL INC.
Inventor： Kenneth J. Schultz , Stephen A. Kujak
Abstract: A non-flammable refrigerant composition for a HVACR system that includes R134a refrigerant, a hydrofluorocarbon refrigerant that has a global warming potential (GWP) of less than 150 or a hydrofluoroolefin refrigerant, and CF3I. A method of making a refrigerant composition for a HVACR system that includes selecting an amount of a first refrigerant that is a hydrofluorocarbon refrigerant or a hydrofluoroolefin refrigerant, selecting an amount of CF3I, and selecting an amount of R134a refrigerant. A method of retrofitting a refrigerant composition in an HVACR system that includes adding one or more compounds to the refrigerant composition. The retrofitted composition including R134a refrigerant, a hydrofluorocarbon refrigerant having a GWP of less than 150, and CF3I, or R134a refrigerant, a hydrofluoroolefin refrigerant, and CF3I.
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Patent Agency Ranking
公开(公告)号：US10969148B2
公开(公告)日：2021-04-06
申请号：US15714620
申请日：2017-09-25
Applicant: TRANE INTERNATIONAL INC.
Inventor： Stephen Anthony Kujak , Julie Ann Majurin , Randal Newton , Kenneth J. Schultz
IPC: G01N29/024 , F25B49/00 , G01N33/00 , G01N25/18 , G01N30/66
Abstract: A system for detecting if a refrigerant in an HVACR system is contaminated. The system includes a detector that detectes a property of a refrigerant gas in a vapor space and compares the detected property with a reference property for uncontaminated refrigerant gas. The detector determines that a contaminant is present in the refrigerant gas if the detected property is different from the reference property. The property detected by the dectector can be either a speed of sound through the refrigerant gas or a thermal conductivity of the refrigerant gas. Also disclosed is a method for detecting contamination of refrigerant gas in a HVACR system that includes detecting, by a detector, a property of refrigerant gas in a vapor space of the HVACR system.
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公开(公告)号：US20190203091A1
公开(公告)日：2019-07-04
申请号：US15858896
申请日：2017-12-29
Applicant: TRANE INTERNATIONAL INC.
Inventor： Kenneth J. Schultz , Stephen A. Kujak
CPC classification number: C09K5/044 , C09K5/045 , C09K2205/122 , C09K2205/126 , C09K2205/22 , C09K2205/40
Abstract: A non-flammable refrigerant composition for a HVACR system that includes R134a refrigerant, a hydrofluorocarbon refrigerant that has a global warming potential (GWP) of less than 150 or a hydrofluoroolefin refrigerant, and CF3I. A method of making a refrigerant composition for a HVACR system that includes selecting an amount of a first refrigerant that is a hydrofluorocarbon refrigerant or a hydrofluoroolefin refrigerant, selecting an amount of CF3I, and selecting an amount of R134a refrigerant. A method of retrofitting a refrigerant composition in an HVACR system that includes adding one or more compounds to the refrigerant composition. The retrofitted composition including R134a refrigerant, a hydrofluorocarbon refrigerant having a GWP of less than 150, and CF3I, or R134a refrigerant, a hydrofluoroolefin refrigerant, and CF3I.
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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：US11198805B2
公开(公告)日：2021-12-14
申请号：US16600963
申请日：2019-10-14
Applicant: TRANE INTERNATIONAL INC.
Inventor： Stephen A. Kujak , Kenneth J. Schultz
Abstract: Compositions and methods are configured to reduce flammability in a heating, ventilation, and air conditioning (HVAC) system having R32 refrigerant included in the refrigerant composition. Refrigerant compositions and methods 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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公开(公告)号：US11008493B2
公开(公告)日：2021-05-18
申请号：US16564060
申请日：2019-09-09
Applicant: TRANE INTERNATIONAL INC.
Inventor： Stephen A. Kujak , Kenneth J. Schultz
Abstract: A refrigeration system is disclosed. The system includes a compressor, a condenser, an expansion device, and an evaporator fluidly connected to form a refrigeration circuit. A refrigerant composition including an environmentally-suitable chiller refrigerant that has a 100 year direct global warming potential (GWP) of less than 150 is included. The refrigerant composition includes a mixture including R-1336mzz-(Z) and R-1130-(E), wherein an amount of R-1336mzz-(Z) in the mixture is in a range from at or about 69% by weight to at or about 81% by weight, and an amount of R-1130-(E) in the mixture is in a range from at or about 31% by weight to at or about 19% by weight.
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