Patents by Inventor Noureddine Khelifa
Noureddine Khelifa 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: 9506701Abstract: A cold and/or heat accumulator has a first heat exchanger and preferably a second heat exchanger. The first heat exchanger may, in particular, be provided to be perfused by a refrigerant while the second heat exchanger is preferably perfused by brine. The first heat exchanger and preferably also the second heat exchanger are engaged in a heat-exchanging relationship with carrier elements charged with a cold or heat storage medium and may, in particular, be formed by graphite strips.Type: GrantFiled: May 29, 2006Date of Patent: November 29, 2016Assignee: WEBASTO AGInventors: Noureddine Khelifa, Wolfgang Krämer, Steffen Korfmann, Thomas Peters
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Patent number: 9421845Abstract: The invention relates to a heating and air-conditioning system (10) for a motor vehicle, in particular a utility vehicle, in order to heat or cool the inside of a motor vehicle during a journey and when the motor vehicle is stationary. The inside of the motor vehicle is divided into a front region and a back region, which can be heated and cooled separately, and comprises a front system (12) which is used to heat and cool the front region during a journey of the motor vehicle, a rear system (14) which is used to heat and cool the rear region during a journey of the motor vehicle and a stationary system (16) which is used to heat and to cool at least the rear region when the motor vehicle is stationary. According to the invention, the stationary system is integrated into the rear system. The invention further relates to a method for heating and air-conditioning a motor vehicle by means of a heating and air-conditioning system (10).Type: GrantFiled: April 15, 2005Date of Patent: August 23, 2016Assignee: WEBASTO AGInventors: Noureddine Khelifa, Wolfgang Kraemer
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Publication number: 20100018667Abstract: The invention relates to a cold and/or heat accumulator comprising a first heat exchanger and preferably a second heat exchanger. The first heat exchanger may, in particular, be provided to be perfused by a refrigerant while the second heat exchanger is preferably perfused by brine. The first heat exchanger and preferably also the second heat exchanger are engaged in a heat-exchanging relationship with carrier elements charged with a cold or heat storage medium and may, in particular, be formed by graphite strips. The cooling energy and/or heat accumulator according to the invention exhibits a good heat conduction, short charging times, a high cooling or heating performance, low pressure losses as well as a good cooling agent distribution. Further its integration options are manifold due to the selected fixation means.Type: ApplicationFiled: May 29, 2006Publication date: January 28, 2010Applicant: WEBASTO AGInventors: Noureddine Khelifa, Wolfgang Krämer, Steffen Korfmann, Thomas Peters
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Publication number: 20080257622Abstract: The invention relates to a mortor vehicle comprising an air-conditioning unit (10) that is provided with an electrically operated compressor (12). Said motor vehicle further comprises a generator (16) which can be operated by a vehicle drive unit (14) in order to generate electric power, a battery (18) that can be charged by means of the electric power generated by the generator, and a solar module (22) for generating electric power, the motor vehicle especially being a hybrid vehicle. According to the invention, another battery is provided which can be charged using the power generated by the solar module (22) while the electrically operated compressor (12) can be operated using power stored in the first battery (18) and/or power stored in the additional battery (20).Type: ApplicationFiled: January 22, 2007Publication date: October 23, 2008Applicant: WEBASTO AGInventors: Helmut Teschner, Noureddine Khelifa, Rupert Kogler
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Patent number: 7434609Abstract: A system with an internal combustion engine which has a heat transfer circuit, a fuel cell and a climate control unit which is accommodated in the heat transfer circuit of the internal combustion engine. The system has a heat transfer arrangement for transferring the exhaust heat of the fuel cell to the heat transfer circuit and a bypass for bridging a segment of the heat transfer circuit which runs through the internal combustion engine so that, in the bypassed operating state, an isolated circuit is formed. In stationary operation, this enables an optimized operating mode since the internal combustion engine is no longer heated and the exhaust heat of the fuel cell is fully available for heating purposes.Type: GrantFiled: May 2, 2006Date of Patent: October 14, 2008Assignee: Webasto Thermosysteme International GmbHInventors: Oliver Horn, Noureddine Khelifa, Alexander Kolb
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Publication number: 20080196862Abstract: The invention relates to a reservoir (10) for cold or heat with a porous body (12) to house a storage medium and a first heat exchanger (14) embedded in the porous body comprising at least one metal tube (16, 18, 20) through which a heat transfer medium may flow to charge the reservoir with heat or cold. According to the invention, a second heat exchanger (22) is embedded in the porous body (12) for discharge of the reservoir which comprises at least one metal tube (24, 26, 28), the porous body is at least partly made from foamed metal, said foamed metal being essentially the same metal as the metal tubes (16, 18, 20, 24, 26, 28).Type: ApplicationFiled: August 22, 2006Publication date: August 21, 2008Inventors: Wolfgang Kramer, Noureddine Khelifa
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Publication number: 20080173029Abstract: An air conditioning system for a motor vehicle having a coolant circuit (1) that contains an electrically driven compressor (2), a condenser (4), an expansion valve (10) and a latent cold accumulator (12). Heat is removed from the latent cold accumulator (12) by the cooling circuit (1); this is referred to as the charging of the latent cold accumulator (12). The system is also equipped with an arrangement for cooling air, which are configured in such a way that heat is removed from the air and supplied to the latent cold accumulator (12). Thus, a cost-effective, efficient air conditioning system can be used, in particular, when the vehicle is stationary.Type: ApplicationFiled: January 14, 2005Publication date: July 24, 2008Applicant: Webasto AGInventors: Wolfgang Kraemer, Noureddine Khelifa, Oliver Horn
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Patent number: 7290599Abstract: A system for heating and cooling the interior of a motor vehicle includes a first climate control device designed to heat or cool a front area of the interior, and a second climate control device designed to heat or cool a rear area of the interior. A first evaporator connectable to a first cooling agent circuit assigned to the first climate control device and a second evaporator is connectable to a second cooling agent circuit assigned to the second climate control device. The second evaporator is located in a latent storage in order to charge the latent storage with cold and the second climate control device contains a first heat exchanger designed to transfer the cold removed via a heat transfer medium circuit or the second cooling agent circuit from the latent storage for cooling the rear area of the interior by an air flow.Type: GrantFiled: May 2, 2006Date of Patent: November 6, 2007Assignee: Webasto Thermosysteme International GmbHInventors: Oliver Horn, Noureddine Khelifa, Steffen Korfmann
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Patent number: 7240725Abstract: A device for climate control of a vehicle is provided which includes a coolant circuit in which coolant flows through a compressor, a condenser, and an evaporator; a heat transfer medium circuit in which heat transfer medium flows through a heat source and a heat exchanger; and a heat/cold reservoir in which the evaporator and the heat exchanger are located. The device of the present invention provides an improved and comparatively economical approach to climate control in the area of a driver's bed in a motor vehicle interior by, at least in part, using a heating/cooling surface for a driver's bed and/or vehicle interior wall, which is integrated into the heat transfer medium circuit such that the heat transfer medium can flow selectively through the heating/cooling surface, or the heat transfer medium which is conveyed by the heat source can flow through the heating/cooling surface.Type: GrantFiled: September 10, 2003Date of Patent: July 10, 2007Assignee: Webasto Thermosysteme GmbHInventors: Oliver Horn, Noureddine Khelifa, Wolfgang Kraemer
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Publication number: 20070125514Abstract: A device for climate control of a vehicle is provided which includes a coolant circuit in which coolant flows through a compressor, a condenser, and an evaporator; a heat transfer medium circuit in which heat transfer medium flows through a heat source and a heat exchanger; and a heat/cold reservoir in which the evaporator and the heat exchanger are located. The device provides an improved and comparatively economical approach to climate control in the area of a driver's bed in a motor vehicle interior by, at least in part, using multiple heating/cooling surfaces for a driver's bed and/or vehicle interior wall, which is integrated into the heat transfer medium circuit in a parallel relationship to each other such that the heat transfer medium can flow selectively through the heating/cooling surfaces, or the heat transfer medium which is conveyed by the heat source can flow through the heating/cooling surfaces.Type: ApplicationFiled: February 1, 2007Publication date: June 7, 2007Applicant: WEBASTO THERMOSYSTEME GMBHInventors: Oliver HORN, Noureddine KHELIFA, Wolfgang KRAMER
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Publication number: 20070083295Abstract: The invention relates to a heating and air-conditioning system (10) for a motor vehicle, in particular a utility vehicle, in order to heat or cool the inside of a motor vehicle during a journey and when the motor vehicle is stationary. The inside of the motor vehicle is divided into a front region and a back region, which can be heated and cooled separately, and comprises a front system (12) which is used to heat and cool the front region during a journey of the motor vehicle, a rear system (14) which is used to heat and cool the rear region during a journey of the motor vehicle and a stationary system (16) which is used to heat and to cool at least the rear region when the motor vehicle is stationary. According to the invention, the stationary system is integrated into the rear system. The invention further relates to a method for heating and air-conditioning a motor vehicle by means of a heating and air-conditioning system (10).Type: ApplicationFiled: April 15, 2005Publication date: April 12, 2007Inventors: Noureddine Khelifa, Wolfgang Kramer
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Publication number: 20070044951Abstract: Climate control system for the interior of a motor vehicle, with a refrigerating circuit, a first climate control device for at least cooling an interior area of the motor vehicle, and a latent cold storage for at least cooling the interior area of the motor vehicle. The first climate control device has an engine-driven compressor, and the second climate control device has a heat transfer circuit connected to a latent cold storage device. The second climate control device cools the interior area with the engine-driven compressor turned off. A control unit connected to an engine sensor and to a vehicle speedometer can turn off the compressor and cause discharging of cold from the latent cold storage in response to detection of both a vehicle speed below a predetermined vehicle speed value and an engine rpm below a predetermined engine rpm value or a exceeding of a defined high speed rpm.Type: ApplicationFiled: July 28, 2006Publication date: March 1, 2007Applicant: Webasto AGInventors: Oliver Horn, Noureddine Khelifa, Wolfgang Kraemer
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Publication number: 20060191676Abstract: A system with an internal combustion engine which has a heat transfer circuit, a fuel cell and a climate control unit which is accommodated in the heat transfer circuit of the internal combustion engine. The system has a heat transfer arrangement for transferring the exhaust heat of the fuel cell to the heat transfer circuit and a bypass for bridging a segment of the heat transfer circuit which runs through the internal combustion engine so that, in the bypassed operating state, an isolated circuit is formed. In stationary operation, this enables an optimized operating mode since the internal combustion engine is no longer heated and the exhaust heat of the fuel cell is fully available for heating purposes.Type: ApplicationFiled: May 2, 2006Publication date: August 31, 2006Applicant: Webasto Thermosysteme International GmbHInventors: Oliver HORN, Noureddine Khelifa, Alexander Kolb
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Publication number: 20060185837Abstract: A system for heating and cooling the interior of a motor vehicle includes a first climate control device designed to heat or cool a front area of the interior, and a second climate control device designed to heat or cool a rear area of the interior. A first evaporator connectable to a first cooling agent circuit assigned to the first climate control device and a second evaporator is connectable to a second cooling agent circuit assigned to the second climate control device. The second evaporator is located in a latent storage in order to charge the latent storage with cold and the second climate control device contains a first heat exchanger designed to transfer the cold removed via a heat transfer medium circuit or the second cooling agent circuit from the latent storage for cooling the rear area of the interior by an air flow.Type: ApplicationFiled: May 2, 2006Publication date: August 24, 2006Applicant: Webasto Thermosysteme International GmbHInventors: Oliver HORN, Noureddine Khelifa, Steffen Korfmann
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Patent number: 7063139Abstract: A system for heating and cooling the interior of a motor vehicle includes a first climate control device designed to heat or cool the front area of the interior, and a second climate control device designed to heat or cool the rear area of the interior. A first evaporator is connectable to a cooling circuit assigned to the first climate control device and a second evaporator is connectable to a second cooling circuit assigned to the second climate control device. The second evaporator is located in a latent storage in order to charge the latent storage with cold and the second climate control device contains a first heat exchanger designed to transfer the cold removed via the heat transfer medium circuit or the second cooling agent circuit from the latent storage for cooling of the rear area of the interior by an air flow.Type: GrantFiled: April 1, 2003Date of Patent: June 20, 2006Assignee: Webasto Thermosysteme International GmbHInventors: Oliver Horn, Noureddine Khelifa, Steffen Korfmann
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Patent number: 7055337Abstract: A system with an internal combustion engine which has a heat transfer circuit, a fuel cell and a climate control unit which is accommodated in the heat transfer circuit of the internal combustion engine. The system has a heat transfer arrangement for transferring the exhaust heat of the fuel cell to the heat transfer circuit and a bypass for bridging a segment of the heat transfer circuit which runs through the internal combustion engine so that, in the bypassed operating state, an isolated circuit is formed. In stationary operation, this enables an optimized operating mode since the internal combustion engine is no longer heated and the exhaust heat of the fuel cell is fully available for heating purposes.Type: GrantFiled: February 4, 2005Date of Patent: June 6, 2006Assignee: Webasto Thermosysteme International GmbHInventors: Oliver Horn, Noureddine Khelifa, Alexander Kolb
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Publication number: 20050218135Abstract: A climate control device for stationary control of the climate in a motor vehicle has a heat pump circuit with a first heat exchanger for taking up ambient heat and a second heat exchanger for discharging heat into the vehicle interior and an electrically or mechanically drivable compressor which is located in the flow direction of the heat pump circuit between the first and the second heat exchanger, and a booster set for producing electrical or mechanical power, the electrical or mechanical power being used at least in part to drive the compressor. In addition, there is a third heat exchanger by which the exhaust heat of the booster set is transferred to the heat pump circuit. In this way, good efficiency is ensured for the climate control device in heating operation in stationary operation.Type: ApplicationFiled: January 18, 2005Publication date: October 6, 2005Applicant: Webasto AGInventors: Wolfgang Kraemer, Noureddine Khelifa, Oliver Horn
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Publication number: 20050178537Abstract: An air-conditioning system for a motor vehicle has a coolant circuit which comprises an electrically driven compressor, a condenser, an expansion valve and a latent cold holdover. Heat extracted from the latent cold holdover by the coolant circuit. This is referred to as charging the latent cold holdover. In addition, an air cooling mechanism is provided that extracts heat from the air and is fed to the latent cold holdover. The air-conditioning system can thus be particularly compact and effective as an air-conditioning system for operation in a stationary vehicle.Type: ApplicationFiled: February 17, 2004Publication date: August 18, 2005Applicant: Webasto AGInventors: Oliver Horn, Wolfgang Kramer, Noureddine Khelifa
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Publication number: 20050126195Abstract: A system with an internal combustion engine which has a heat transfer circuit, a fuel cell and a climate control unit which is accommodated in the heat transfer circuit of the internal combustion engine. The system has a heat transfer arrangement for transferring the exhaust heat of the fuel cell to the heat transfer circuit and a bypass for bridging a segment of the heat transfer circuit which runs through the internal combustion engine so that, in the bypassed operating state, an isolated circuit is formed. In stationary operation, this enables an optimized operating mode since the internal combustion engine is no longer heated and the exhaust heat of the fuel cell is fully available for heating purposes.Type: ApplicationFiled: February 4, 2005Publication date: June 16, 2005Applicant: Webasto Thermosysteme International GmbHInventors: Oliver Horn, Noureddine Khelifa, Alexander Kolb
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Publication number: 20050087333Abstract: A system for heating and cooling the interior of a motor vehicle, having a refrigerating circuit with a first climate control device (10) which is designed to heat or cool the front area of the interior, and with a second climate control device (12) which is designed to heat or cool the rear area of the interior. The first climate control device (10) has a first evaporator (14) and the second climate control device (12) has a second evaporator (16). The second climate control device (12) also has a first heat exchanger (18) which is connected via a heat transfer medium circuit (30) to a latent cold storage device (20) which can be charged with cold by a third evaporator (22) which can be connected to the refrigerating circuit.Type: ApplicationFiled: September 20, 2004Publication date: April 28, 2005Applicant: Webasto AGInventors: Oliver Horn, Noureddine Khelifa, Wolfgang Kramer