Patents by Inventor Zoltan Kardos
Zoltan Kardos 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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Patent number: 12194832Abstract: A thermal management system is disclosed configured to regulate the temperature of a number of vehicle components. The system comprises one expansion tank and two or more coolant circuits each configured to regulate the temperature of a vehicle component of the number of vehicle components. Each coolant circuit of the two or more coolant circuits comprises a heat exchanger configured to regulate the temperature of coolant in the coolant circuit, a coolant pump comprising a pump inlet, and a static line fluidly connecting the pump inlet to the expansion tank. The present disclosure further relates to a vehicle comprising a thermal management system.Type: GrantFiled: June 24, 2021Date of Patent: January 14, 2025Assignee: Scania CV ABInventors: Martin Mohlin, Ola Hall, Zoltan Kardos, Rickard Eriksson
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Publication number: 20230331119Abstract: A coolant distribution manifold for a vehicle propulsion battery cooling system is disclosed. The coolant distribution manifold comprises a coolant inlet configured to receive coolant from a temperature conditioning circuit, a receiving section configured to receive coolant from at least two propulsion battery coolant circuits, and a supplying section configured to supply coolant to the at least two coolant circuits. The supplying section is arranged downstream of the coolant inlet and of the receiving section. The present disclosure further relates to a vehicle propulsion battery cooling system, and a vehicle.Type: ApplicationFiled: March 12, 2021Publication date: October 19, 2023Applicant: Scania CV ABInventors: Zoltan KARDOS, Martin MOHLIN, Ola HALL, Tomas ALSTERDAL
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Publication number: 20230278415Abstract: A thermal management system is disclosed configured to regulate the temperature of a number of vehicle components. The system comprises one expansion tank and two or more coolant circuits each configured to regulate the temperature of a vehicle component of the number of vehicle components. Each coolant circuit of the two or more coolant circuits comprises a heat exchanger configured to regulate the temperature of coolant in the coolant circuit, a coolant pump comprising a pump inlet, and a static line fluidly connecting the pump inlet to the expansion tank. The present disclosure further relates to a vehicle comprising a thermal management system.Type: ApplicationFiled: June 24, 2021Publication date: September 7, 2023Applicant: Scania CV ABInventors: Martin MOHLIN, Ola HALL, Zoltan KARDOS, Rickard ERIKSSON
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Publication number: 20230145211Abstract: Disclosed is a cooling system comprising a cooling circuit with a deaeration device arranged in the cooling circuit for separation of air bubbles from coolant circulating therein. The deaeration device comprises a deaeration chamber having a coolant inlet connected to a feed pipe of the cooling circuit, a first coolant outlet connected to a coolant pump of the cooling circuit, and a second coolant outlet connected to an expansion tank via a static line. The deaeration chamber has a larger cross-sectional dimension than said feed pipe. The second coolant outlet is located in such a position in relation to the coolant inlet and the first coolant outlet that the coolant flow in the deaeration chamber between the coolant inlet and the first coolant outlet will move migrating air bubbles in the longitudinal direction of the deaeration chamber towards the second coolant outlet.Type: ApplicationFiled: May 6, 2021Publication date: May 11, 2023Applicant: Scania CV ABInventors: Martin MOHLIN, Ola HALL, Björn KYLEFORS, Zoltan KARDOS
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Patent number: 11578641Abstract: A thermostat device (8) for a cooling system in a vehicle. The device (8) includes a thermostat housing (15) enclosing a movably arranged valve body (16, 20, 34, 44). The valve body is configured to distribute coolant from a thermostat chamber (15a) to a radiator bypass line (9) and/or a radiator (11) in dependence on the position of the valve body. The device (8) has a first thermal expansion element (31) providing a first stroke of a valve body (16, 20, 34, 44) in response to the temperature of the coolant in a the pilot chamber (14a), and a second thermal expansion element (32) providing a second stroke of the valve body (16, 20, 34, 44) in response to the temperature of the coolant in the thermostat chamber (15a) such that the valve body (16, 20, 34, 44) is moved to a position defined by the strokes from the thermal expansion elements (31, 32). The pilot chamber (14a) has an outlet passage (14b) for directing coolant from the pilot chamber (14a) to the thermostat chamber (15a).Type: GrantFiled: March 14, 2018Date of Patent: February 14, 2023Assignee: Scania CV ABInventors: Zoltan Kardos, Ola Hall
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Publication number: 20220234420Abstract: A thermal management system for a vehicle is disclosed, wherein the vehicle comprises an occupant compartment and a propulsion system configured to provide motive power to the vehicle. The system comprises a propulsion coolant circuit configured to cool at least a portion of the propulsion system, a heating circuit configured to heat the occupant compartment, and a heat pump circuit comprising a first evaporator in the propulsion coolant circuit and a condenser in the heating circuit. The propulsion coolant circuit comprises a connecting conduit connecting the propulsion coolant circuit to the heating circuit at a position upstream of the condenser, and a first valve configured to control flow of coolant through the connecting conduit. The present disclosure further relates to a powertrain for a vehicle, as well as a vehicle.Type: ApplicationFiled: June 10, 2020Publication date: July 28, 2022Applicant: Scania CV ABInventors: Ola HALL, Martin MOHLIN, Zoltan KARDOS, Rickard ERIKSSON
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Patent number: 11220931Abstract: A cooling system includes a first circuit (A) configured to cool a combustion engine (2) and a second circuit (B) configured to cool a condenser (19) in a WHR system. The second circuit (B) has a second radiator (16), a first inlet opening (B1i) at which the second circuit (B) receives a coolant from a first position of the first circuit (A), a condenser inlet line (18) configured to direct coolant to the condenser (19) and an outlet opening (Bo) at which the coolant is directed back to the first circuit (A). The second circuit (B) further has a second radiator bypass line (14) directing coolant past the second radiator (16), and a second valve device (13, 13?) configured to distribute the coolant between the second radiator (16) and the second radiator bypass line (14) such that a coolant mixture is received in the condenser inlet line (18) which is able to cool the working medium in the condenser (19) to a desired condensation temperature.Type: GrantFiled: June 1, 2018Date of Patent: January 11, 2022Inventors: Zoltan Kardos, Thomas Sederholm
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Patent number: 11215101Abstract: The present invention relates to an arrangement comprising a waste heat recovery system (WHR-system) and a method for controlling the arrangement. The arrangement comprises an expansion tank having a constant inner volume, first cooling means configured to cool the working fluid in the condenser and a control unit configured to control the first cooling means such that the working fluid is cooled to a desired condensation temperature in the condenser during operation of the WHR system. The arrangement comprises further a sub-cooler arranged in a position downstream of the condenser and second cooling means configured to cool the working fluid in the sub-cooler, and that the control unit is configured to control the second cooling means such that the working fluid receives a determined subcooling in the sub-cooler during operation of the WHR system.Type: GrantFiled: June 17, 2019Date of Patent: January 4, 2022Assignee: Scania CV ABInventors: Zoltan Kardos, Ola Hall, Thomas Sederholm
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Patent number: 11199125Abstract: The present invention relates to a cooling system comprising a first cooling circuit cooling a first object, a second cooling circuit cooling a second object, an expansion tank, a first deaeration line directing coolant and air from the first cooling circuit to the expansion tank, and a second deaeration line directing coolant and air from the second cooling circuit to the expansion tank. The cooling system comprises further a deaeration valve configured to control the flow through the first deaeration line, a single expansion tank outlet line configured to direct all coolant in the expansion tank to the second cooling circuit and a connection line configured to direct coolant from the second cooling circuit to the first cooling circuit.Type: GrantFiled: April 17, 2018Date of Patent: December 14, 2021Assignee: Scania CV ABInventors: Zoltan Kardos, Ola Hall
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Publication number: 20210215082Abstract: The present invention relates to an arrangement comprising a waste heat recovery system (WHR-system) and a method for controlling the arrangement. The arrangement comprises an expansion tank having a constant inner volume, first cooling means configured to cool the working fluid in the condenser and a control unit configured to control the first cooling means such that the working fluid is cooled to a desired condensation temperature in the condenser during operation of the WHR system. The arrangement comprises further a sub-cooler arranged in a position downstream of the condenser and second cooling means configured to cool the working fluid in the sub-cooler, and that the control unit is configured to control the second cooling means such that the working fluid receives a determined subcooling in the sub-cooler during operation of the WHR system.Type: ApplicationFiled: June 17, 2019Publication date: July 15, 2021Applicant: Scania CV ABInventors: Zoltan KARDOS, Ola HALL, Thomas SEDERHOLM
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Publication number: 20210156297Abstract: The present invention relates to a cooling system comprising a first cooling circuit cooling a first object, a second cooling circuit cooling a second object, an expansion tank, a first deaeration line directing coolant and air from the first cooling circuit to the expansion tank, and a second deaeration line directing coolant and air from the second cooling circuit to the expansion tank. The cooling system comprises further a deaeration valve configured to control the flow through the first deaeration line, a single expansion tank outlet line configured to direct all coolant in the expansion tank to the second cooling circuit and a connection line configured to direct coolant from the second cooling circuit to the first cooling circuit.Type: ApplicationFiled: April 17, 2018Publication date: May 27, 2021Applicant: Scania CV ABInventors: Zoltan KARDOS, Ola HALL
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Publication number: 20210025315Abstract: A thermostat device (8) for a cooling system in a vehicle. The device (8) includes a thermostat housing (15) enclosing a movably arranged valve body (16, 20, 34, 44). The valve body is configured to distribute coolant from a thermostat chamber (15a) to a radiator bypass line (9) and/or a radiator (11) in dependence on the position of the valve body. The device (8) has a first thermal expansion element (31) providing a first stroke of a valve body (16, 20, 34, 44) in response to the temperature of the coolant in a the pilot chamber (14a), and a second thermal expansion element (32) providing a second stroke of the valve body (16, 20, 34, 44) in response to the temperature of the coolant in the thermostat chamber (15a) such that the valve body (16, 20, 34, 44) is moved to a position defined by the strokes from the thermal expansion elements (31, 32). The pilot chamber (14a) has an outlet passage (14b) for directing coolant from the pilot chamber (14a) to the thermostat chamber (15a).Type: ApplicationFiled: March 14, 2018Publication date: January 28, 2021Inventors: Zoltan KARDOS, Ola HALL
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Publication number: 20210003040Abstract: An arrangement and a method for controlling a shutdown phase of a WHR-system. The WHR system includes a main circuit (4) which includes a pump (3), an evaporator (5), an expander (7) and a condenser (10), and a compensation tank (12) which is configured to compensate for volume changes of a working fluid in the main circuit (4) during operation of the WHR system. The arrangement includes a control unit (26) configured to receive information when the shutdown phase of the WHR system is to be initiated and a flow device able to supply working fluid from the compensation tank (12) to the main circuit (4). The control unit (26) is configured to activate the flow device such that working fluid is supplied from the compensation tank (12) to the main circuit (4) when it receives information indication that the shutdown phase of the WHR system is to be initiated.Type: ApplicationFiled: March 19, 2019Publication date: January 7, 2021Inventors: Thomas SEDERHOLM, Zoltan KARDOS
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Patent number: 10830121Abstract: A cooling system for a combustion engine and a WHR-system in a vehicle (1) includes a first line (23) directing coolant at a first temperature (T1) to a condenser (18) of the WHR system, a second line (24) directing coolant at a second temperature (T2) to the condenser (18), a valve arrangement (25, 26, 29) by which the flow rate of the coolant in at least one of the lines (23, 24) is adjustable and a control unit (20) configured to control the valve arrangement (25, 26, 29) such that the coolant directed to the condenser (18) from the lines (23, 24) has a temperature and a flow rate which results in a cooling of the working medium in the condenser (18) to a predetermined condensation temperature/pressure at the actual operating condition.Type: GrantFiled: January 11, 2017Date of Patent: November 10, 2020Assignee: SCANIA CV ABInventors: Zoltan Kardos, Ola Hall
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Publication number: 20200309017Abstract: A cooling system configured to cool a combustion engine (2) and at least one further object (18) in a vehicle (1) includes a main radiator (8), a main radiator bypass line (9) directing coolant past the main radiator (8), a first valve device (6) receiving coolant from a coolant line (5) and directing it to the main radiator line (7) and the main radiator bypass line (9), an auxiliary circuit (14) directing coolant to the further object (13, 28), a main radiator outlet line (7b) directing at least a part of the coolant leaving the main radiator (8) to the auxiliary circuit (14), and a second valve device (20) receiving coolant from the main radiator (11) and/or the main radiator bypass line (9) and directing it to the auxiliary circuit (14) and/or the engine inlet line (3).Type: ApplicationFiled: May 11, 2017Publication date: October 1, 2020Inventors: Zoltan KARDOS, Ola HALL, Mats EKMAN
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Patent number: 10787935Abstract: A cooling arrangement for a WHR-system in a vehicle, includes a first cooling circuit including a first radiator in which a circulating coolant is cooled, and a second cooling circuit including a second radiator in which a coolant is cooled to a lower temperature than the coolant in the first radiator. A condenser inlet line directs coolant from one of the cooling circuits to a condenser to provide cooling for a working medium flowing therethrough. A cooling adjusting device adjusts the temperature of the coolant in the inlet line to the condenser by the coolant in the other cooling circuit based on information received about the coolant such that the coolant in the condenser inlet line provides the estimated suitable cooling of the working medium in the condenser.Type: GrantFiled: November 4, 2015Date of Patent: September 29, 2020Assignee: SCANIA CV ABInventors: Zoltan Kardos, Ola Hall
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Publication number: 20200300153Abstract: A fan arrangement for a cooling module in a vehicle. The vehicle (6) has a radiator fan (10) providing an air flow through a flow passage (5) and the cooling module in an intended flow direction. The cooling module includes a radiator (3) and at least one further cooler (1, 2) arranged in an upstream position of the radiator (3) with respect to the intended flow direction through the flow passage (5). The fan arrangement includes at least one additional electrically driven fan (4). The additional electrically driven fan (4) is arranged in the flow passage (5) in a position downstream of the radiator (3) and upstream of the radiator fan (10) with respect to the intended flow direction through the flow passage (5). The electrically driven fan (4) is configured to provide an air flow through a restricted portion (18) of the flow passage (5) and the cooling module during certain occasions when the operating conditions include the radiator fan not being in operation.Type: ApplicationFiled: December 13, 2016Publication date: September 24, 2020Inventors: Zoltan KARDOS, Ola HALL
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Publication number: 20200149436Abstract: A cooling system includes a first circuit (A) configured to cool a combustion engine (2) and a second circuit (B) configured to cool a condenser (19) in a WHR system. The second circuit (B) has a second radiator (16), a first inlet opening (B1i) at which the second circuit (B) receives a coolant from a first position of the first circuit (A), a condenser inlet line (18) configured to direct coolant to the condenser (19) and an outlet opening (Bo) at which the coolant is directed back to the first circuit (A). The second circuit (B) further has a second radiator bypass line (14) directing coolant past the second radiator (16), and a second valve device (13, 13?) configured to distribute the coolant between the second radiator (16) and the second radiator bypass line (14) such that a coolant mixture is received in the condenser inlet line (18) which is able to cool the working medium in the condenser (19) to a desired condensation temperature.Type: ApplicationFiled: June 1, 2018Publication date: May 14, 2020Inventors: Zoltan KARDOS, Thomas SEDERHOLM
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Patent number: 10634037Abstract: Disclosed is a cooler arrangement for cooling a cylinder of a combustion engine. The cylinder has a cylinder head and a cylinder liner. The arrangement comprises a cooling circuit with a first flow passage which leads coolant through a lower part of the cylinder head, a second flow passage which leads coolant through an upper part of the cylinder head, and a third flow passage which leads coolant through an upper part of the cylinder liner. The cooling circuit is adapted to initially leading coolant through the first flow passage before it is led in parallel through the second flow passage and the third flow passage.Type: GrantFiled: December 3, 2014Date of Patent: April 28, 2020Assignee: Scania CV ABInventors: Mats Ekman, Zoltan Kardos, Richard Jansson, Stig Hildahl, Magnus Carlsson
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Patent number: 10508589Abstract: A method for controlling a cooling system delivering coolant to a heat exchanger (18) in a vehicle (1). During operating conditions when a thermostat (6) in the cooling system is in the partly open position, the method comprises the steps of estimating a desired cooling temperature (T) of a medium in the heat exchanger (18), calculating the coolant flow rate ({dot over (m)}1) through a radiator (7b) and the coolant flow rate ({dot over (m)}2) through a radiator bypass line (9), calculating a coolant flow rate ({dot over (m)}3) and coolant temperature (t3) combination at 10 at which the medium in the heat exchanger (18) is cooled to a desired temperature (T), adjusting the flow regulating mechanism (23) such that coolant at the selected flow rate ({dot over (m)}3) and temperature (t3) combination is directed to the heat exchanger (18).Type: GrantFiled: January 11, 2017Date of Patent: December 17, 2019Assignee: SCANIA CV ABInventors: Zoltan Kardos, Ola Hall