Patents by Inventor Stephan Köster
Stephan Köster has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230408157Abstract: A combination of a refrigerant accumulator and an internal heat exchanger includes a central portion with fluid portions to which the accumulator and heat exchanger are attachable. A connection component includes at least four fluid ports, and components of a refrigerant circuit, in particular an accumulator and/or a heat exchanger, can be mounted thereto on at least two opposite sides.Type: ApplicationFiled: January 19, 2022Publication date: December 21, 2023Inventors: Stephan Koester, Felix Girmscheid, Dominik Sernetz
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Publication number: 20230341159Abstract: A device for separating a gaseous and a liquid phase of a working medium and for storing the liquid phase. The device has a volume enclosing wall with closed end faces, an inlet and an outlet, as well as a suction pipe. A partition element is arranged within the volume, which divides the volume in a separation volume and a storage volume. The separation volume is formed above the partition element in a direction z of gravity, while the storage volume is formed below the partition element. The suction pipe opens into the separation volume.Type: ApplicationFiled: November 11, 2021Publication date: October 26, 2023Inventors: Stephan Köster, Andreas Roeder, Christian Sett, Rene Cezanne
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Publication number: 20220307500Abstract: A compressor module for a refrigerant circuit of a motor vehicle air-conditioning system, exhibiting a modular multi-part housing with a low-pressure refrigerant inlet, a high-pressure refrigerant outlet and a compressor, characterized in that an inner heat exchanger of the refrigerant circuit is produced such that it is integrated into the compressor module, wherein the housing of the compressor module fully encloses the inner heat exchanger.Type: ApplicationFiled: August 26, 2020Publication date: September 29, 2022Inventors: Toni Spies, Philipp Kozalla, Roman Heckt, Thomas Klotten, Jörn Fröhling, Torsten Gehm, Stephan Köster, Felix Girmscheid
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Patent number: 11365918Abstract: A device for storing refrigerant of a refrigeration circuit and a method of operating the device, in particular for an air conditioning system of a motor vehicle. The device has a housing having a volume-enclosing wall with an inlet for introducing a refrigerant-oil mixture, and an outlet, a refrigerant discharge line arranged in the interior of the housing with an inlet opening arranged above a liquid level of the refrigerant for receiving gaseous refrigerant, and a system for returning oil to a compressor having at least one through hole formed below the liquid level of the refrigerant, in particular below a filling level of the oil, in the refrigerant discharge line. In addition, at least one through hole formed in the refrigerant discharge line is formed with an adjustable through-flow cross section, which can be varied by means of a closing apparatus.Type: GrantFiled: August 21, 2019Date of Patent: June 21, 2022Assignee: HANON SYSTEMSInventors: Stephan Köster, Dominik Sernetz
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Patent number: 11002487Abstract: A counter flow heat exchanger: has an inner container with radially outwardly projecting helical webs, a cylindrical housing, wherein an inner circumferential surface of the housing and the radially outer edges of the helical webs of the inner container are in contact such that a flow path is developed in which a first heat transfer fluid can flow between the helical webs of the inner container and the inner circumferential surface of the housing; a helical heat exchanger tube extending between the helical webs of the inner container such that a second heat transfer fluid can flow within this heat exchanger tube counter to the direction of flow of the first heat transfer fluid. A method for the production of a counter flow heat exchanger is also provided.Type: GrantFiled: October 23, 2018Date of Patent: May 11, 2021Assignee: Hanon SystemsInventors: Stephan Koester, Dominik Sernetz
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Patent number: 10876659Abstract: An arrangement for fluid-tight connecting of lines including a first and second connection element. The connection elements are aligned with each other and connected by a fastening mechanism. The arrangement includes an intermediate element between the connection elements and a holding element and a second sealing element. A first sealing element is arranged in the holding element between the sealing surfaces of the connection elements. The holding element has a hollow wall with a first and second edge. The second sealing element is connected to the holding element on the second edge. The intermediate element includes an indentation extending from a first end to a second end formed near the first sealing element. The first end has a conical shape, wherein oppositely arranged side walls of the indentation rest on one another on the outer side of the sealing element.Type: GrantFiled: September 10, 2018Date of Patent: December 29, 2020Assignee: HANON SYSTEMSInventors: Stephan Köster, Ibrahim Jamaladin, Dominik Sernetz
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Publication number: 20200064029Abstract: A device for storing refrigerant of a refrigeration circuit and a method of operating the device, in particular for an air conditioning system of a motor vehicle. The device has a housing having a volume-enclosing wall with an inlet for introducing a refrigerant-oil mixture, and an outlet, a refrigerant discharge line arranged in the interior of the housing with an inlet opening arranged above a liquid level of the refrigerant for receiving gaseous refrigerant, and a system for returning oil to a compressor having at least one through hole formed below the liquid level of the refrigerant, in particular below a filling level of the oil, in the refrigerant discharge line. In addition, at least one through hole formed in the refrigerant discharge line is formed with an adjustable through-flow cross section, which can be varied by means of a closing apparatus.Type: ApplicationFiled: August 21, 2019Publication date: February 27, 2020Inventors: Stephan Köster, Dominik Sernetz
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Publication number: 20190120560Abstract: A counter flow heat exchanger comprising: an inner container with radially outwardly projecting helical webs, a cylindrical housing, wherein an inner circumferential surface of the housing and the radially outer edges of the helical webs of the inner container are in contact such that a flow path is developed in which a first heat transfer fluid can flow between the helical webs of the inner container and the inner circumferential surface of the housing; a helical heat exchanger tube extending between the helical webs of the inner container such that a second heat transfer fluid can flow within this heat exchanger tube counter to the direction of flow of the first heat transfer fluid. Further disclosed is a method for the production of a counter flow heat exchanger.Type: ApplicationFiled: October 23, 2018Publication date: April 25, 2019Inventors: Stephan Koester, Dominik Sernetz
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Publication number: 20190086004Abstract: An arrangement for fluid-tight connecting of lines including a first and second connection element. The connection elements are aligned with each other and are connected by fastening means. The arrangement includes an intermediate element between the connection elements and a holding element and a second sealing element. A first sealing element is arranged in the holding element between the sealing surfaces of the connection elements. The holding element has a hollow wall with a first and second edge. The second sealing element is connected to the holding element on the second edge. The intermediate element includes an indentation extending from a first end formed on an outer side of the second sealing element to a second end formed near the first sealing element. The first end has a conical shape, wherein oppositely arranged side walls of the indentation rest on one another on the outer side of the sealing element.Type: ApplicationFiled: September 10, 2018Publication date: March 21, 2019Inventors: Stephan Köster, Ibrahim Jamaladin, Dominik Sernetz
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Patent number: 9897356Abstract: A refrigeration plant with refrigerant evaporator arrangement and process for parallel air and battery contact cooling. The refrigeration plant includes a refrigerant evaporator arrangement for parallel air and battery contact cooling, having with a refrigerant compressor and a condenser An evaporator with an assigned controllable expansion member for air cooling and an evaporator as a battery contact cooler with an assigned controllable expansion member for battery cooling are provided. A throttling member is located between the evaporator and the tap of the assigned controllable expansion member.Type: GrantFiled: November 23, 2011Date of Patent: February 20, 2018Assignee: HANON SYSTEMSInventors: Marc Graaf, Andreas Emmerich, Stephan Köster, Felix Girmscheid, Peter Heyl, Dominik Prinz
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Patent number: 9647251Abstract: A device for cooling batteries includes a cooling plate for receiving at least one battery thereon and at least one heat transfer element in heat transfer relationship with the cooling plate. A mechanical stress produced by a contact force causes the at least one heat transfer element to thermally abut the cooling plate.Type: GrantFiled: April 13, 2012Date of Patent: May 9, 2017Assignee: HANON SYSTEMSInventors: Dominik Prinz, Stephan Koester, Andreas Emmerich, Jens Talmon
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Publication number: 20150345844Abstract: A coolant accumulator including an accumulation tank with a suction pipe assembly, wherein the suction pipe assembly includes an external suction pipe and an internal suction pipe which are positioned coaxially and at a distance from each other, and connected with each other by way of a connecting piece at the respective lower ends of the suction pipes to form a flow path, and wherein the connecting piece features a radially positioned oil balancing bore which connects an oil sump region of the accumulation tank with the flow path in the suction pipe assembly.Type: ApplicationFiled: February 2, 2015Publication date: December 3, 2015Inventors: Stephan Köster, Marc Graaf, Felix Girmscheid
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Patent number: 8551632Abstract: A battery cooling system includes a battery and a plurality of battery cooler pipes disposed adjacent the battery. Each of the battery cooler pipes is spaced apart and substantially parallel to an adjacent one of the battery cooler pipes. A clamping element is disposed adjacent at least one of the battery cooler pipes. The clamping element configured to urge the battery cooler pipes against at least a portion of the battery. The clamping element includes a plurality of clamping wings extending outwardly from a center portion of the clamping element. Each of the clamping wings of the clamping element is disposed adjacent at least one of the battery cooler pipes. The battery cooling system may further include a carrier disposed adjacent the center portion of the clamping element to absorb spring forces of the clamping wings.Type: GrantFiled: September 19, 2012Date of Patent: October 8, 2013Assignee: Visteon Global Technologies, Inc.Inventors: Stephan Koester, Felix Girmscheid, Andreas Emmerich, Jens Talmon
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Patent number: 8524387Abstract: A battery unit for hybrid or electric vehicles comprising a cell module including a plurality of storage cells, each accommodated in a prismatic cell casing with two large surfaces arranged parallel to each other and four narrow side surfaces. The prismatic cell casings with their parallel arranged large surfaces are stacked adjacent to each other. One of the narrow side surfaces, the cell casing bottom of each storage cell. A cooling device comprising a plate-shaped cooling body with one or several recesses, and one or several fastening mechanisms integrated into the cell module bottom that agree with a corresponding number of recesses of the cooling body, are configured to couple the cooling body to the cell module.Type: GrantFiled: July 1, 2010Date of Patent: September 3, 2013Assignee: Visteon Global Technologies, Inc.Inventors: Marc Graaf, Stephan Köster, Florian Wieschollek
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Publication number: 20130071707Abstract: A battery cooling system includes a battery and a plurality of battery cooler pipes disposed adjacent the battery. Each of the battery cooler pipes is spaced apart and substantially parallel to an adjacent one of the battery cooler pipes. A clamping element is disposed adjacent at least one of the battery cooler pipes. The clamping element configured to urge the battery cooler pipes against at least a portion of the battery. The clamping element includes a plurality of clamping wings extending outwardly from a center portion of the clamping element. Each of the clamping wings of the clamping element is disposed adjacent at least one of the battery cooler pipes. The battery cooling system may further include a carrier disposed adjacent the center portion of the clamping element to absorb spring forces of the clamping wings.Type: ApplicationFiled: September 19, 2012Publication date: March 21, 2013Applicant: VISTEON GLOBAL TECHNOLOGIES, INC.Inventors: Stephan Koester, Felix Girmscheid, Andreas Emmerich, Jens Talmon
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Publication number: 20120261107Abstract: A device for cooling batteries includes a cooling plate for receiving at least one battery thereon and at least one heat transfer element in heat transfer relationship with the cooling plate. A mechanical stress produced by a contact force causes the at least one heat transfer element to thermally abut the cooling plate.Type: ApplicationFiled: April 13, 2012Publication date: October 18, 2012Applicant: VISTEON GLOBAL TECHNOLOGIES, INC.Inventors: Dominik Prinz, Stephan Koester, Andreas Emmerich, Jens Talmon
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Publication number: 20120125032Abstract: A refrigeration plant with refrigerant evaporator arrangement and process for parallel air and battery contact cooling. The refrigeration plant includes a refrigerant evaporator arrangement for parallel air and battery contact cooling, having with a refrigerant compressor and a condenser An evaporator with an assigned controllable expansion member for air cooling and an evaporator as a battery contact cooler with an assigned controllable expansion member for battery cooling are provided. A throttling member is located between the evaporator and the tap of the assigned controllable expansion member.Type: ApplicationFiled: November 23, 2011Publication date: May 24, 2012Applicant: VISTEON GLOBAL TECHNOLOGIES, INC.Inventors: Marc Graaf, Andreas Emmerich, Stephan Köster, Felix Girmscheid, Peter Heyl, Dominik Prinz
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Patent number: 7918107Abstract: An internal heat exchanger including an integrated accumulator is disclosed, wherein the heat exchanger is used in refrigerant circuits, particularly in motor vehicle heating, ventilation, and air conditioning systems.Type: GrantFiled: June 28, 2007Date of Patent: April 5, 2011Assignee: Visteon Global Technologies, Inc.Inventors: Thomas Klotten, Roman Heckt, Stephan Köster
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Publication number: 20110003187Abstract: A battery unit for hybrid or electric vehicles comprising a cell module including a plurality of storage cells, each accommodated in a prismatic cell casing with two large surfaces arranged parallel to each other and four narrow side surfaces. The prismatic cell casings with their parallel arranged large surfaces are stacked adjacent to each other. One of the narrow side surfaces, the cell casing bottom of each storage cell. A cooling device comprising a plate-shaped cooling body with one or several recesses, and one or several fastening mechanisms integrated into the cell module bottom that agree with a corresponding number of recesses of the cooling body, are configured to couple the cooling body to the cell module.Type: ApplicationFiled: July 1, 2010Publication date: January 6, 2011Applicant: VISTEON GLOBAL TECHNOLOGIES, INC.Inventors: Marc Graaf, Stephan Köster, Florian Wieschollek
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Publication number: 20070144207Abstract: A refrigerant accumulator for refrigerant circuits having a container with an inlet for a two-phase mixture and an outlet for the refrigerant vapor. The accumulator includes a baffle provided as a separator in the upper part of the refrigerant accumulator. The baffle includes means for the collection of liquid refrigerant, by which the liquid refrigerant is leadable into the lower region of the refrigerant accumulator.Type: ApplicationFiled: December 7, 2006Publication date: June 28, 2007Inventors: Thomas Klotten, Marc Graaf, Stephan Koester