Patents by Inventor Klaus Harm

Klaus Harm 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).

  • Publication number: 20110108242
    Abstract: A cooling arrangement for cooling a temperature-sensitive assembly, (such as an electrical assembly) of a motor vehicle includes a condenser for liquefying at least a partial volume of a cooling medium in a cooling circuit, and an evaporator disposed downstream of the condenser on which the cooling medium can impinge and to which heat from the electrical assembly (12) can be applied. The cooling arrangement comprises a pump device by which the evaporator can be charged by at least the liquefied partial volume of the cooling medium. A method for cooling a temperature-sensitive assembly, such an electrical assembly, of a motor vehicle is also provided.
    Type: Application
    Filed: February 24, 2009
    Publication date: May 12, 2011
    Applicant: Daimler AG
    Inventors: Bernd Eichberger, Klaus Harm
  • Patent number: 7231776
    Abstract: In an air-conditioning system for a motor vehicle having an internal combustion engine with an engine cooling circuit with a heat exchanger for heating and a heat pump with a refrigerant circuit including a heat exchanger for cooling the interior compartment of the motor vehicle, the refrigerant circuit includes also heat exchanges for heating or for cooling the coolant in the engine cooling circuit.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: June 19, 2007
    Assignee: DiamlerChrysler AG
    Inventors: Roland Cäsar, Jan Gartner, Steffen Geiger, Klaus Harm, Jürgen Wertenbach
  • Patent number: 7228705
    Abstract: The invention relates to an air-conditioning installation, in particular for motor vehicles, having a compression refrigeration circuit of a refrigerant for A/C operation with a high-pressure region, a suction region and a connected stationary air-conditioning circuit, in particular for stationary air-conditioning operation when the compression refrigeration circuit is switched off, having a compressor, an expansion valve, an evaporator as cooler for releasing refrigeration to the environment, and a thermal accumulator comprising a heat storage medium. The thermal accumulator serves as a refrigeration accumulator and as a condenser during stationary air-conditioning operation. The refrigerant which is present serves as heat transfer medium for transferring the refrigeration from the thermal accumulator to the evaporator in the stationary air-conditioning circuit. The evaporator and the thermal accumulator are connected in series in terms of the flow of refrigerant.
    Type: Grant
    Filed: November 8, 2003
    Date of Patent: June 12, 2007
    Assignee: DaimlerChrysler AG
    Inventor: Klaus Harm
  • Publication number: 20060168991
    Abstract: The invention relates to an air-conditioning installation, in particular for motor vehicles, having a compression refrigeration circuit of a refrigerant for A/C operation with a high-pressure region, a suction region and a connected stationary air-conditioning circuit, in particular for stationary air-conditioning operation when the compression refrigeration circuit is switched off, having a compressor, an expansion valve, an evaporator as cooler for releasing refrigeration to the environment, and a thermal accumulator comprising a heat storage medium. The thermal accumulator serves as a refrigeration accumulator and as a condenser during stationary air-conditioning operation. The refrigerant which is present serves as heat transfer medium for transferring the refrigeration from the thermal accumulator to the evaporator in the stationary air-conditioning circuit. The evaporator and the thermal accumulator are connected in series in terms of the flow of refrigerant.
    Type: Application
    Filed: November 8, 2003
    Publication date: August 3, 2006
    Inventor: Klaus Harm
  • Publication number: 20060123824
    Abstract: In an air-conditioning system for a motor vehicle having an internal combustion engine with an engine cooling circuit with a heat exchanger for heating and a heat pump with a refrigerant circuit including a heat exchanger for cooling the interior compartment of the motor vehicle, the refrigerant circuit includes also heat exchanges for heating or for cooling the coolant in the engine cooling circuit.
    Type: Application
    Filed: January 31, 2006
    Publication date: June 15, 2006
    Applicant: Daimlerchrysler AG
    Inventors: Roland Casar, Jan Gartner, Steffen Geiger, Klaus Harm, Jurgen Wertenbach
  • Patent number: 7028501
    Abstract: In an air-conditioning system for a motor vehicle having an integrated heat pump for cooling and heating, in which refrigerant is circulated and which allows heat exchange with the incoming air for the interior compartment of the motor vehicle, the heat transfer is effected either directly, by means of a refrigerant/air heat exchanger through which the air for the interior compartment is conducted, or by means of a secondary refrigerant circuit, which includes two expansion devices and three heat exchangers provided in the refrigerant circuit of the system.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: April 18, 2006
    Assignee: DaimlerChrysler AG
    Inventors: Roland Cäsar, Jan Gartner, Steffen Geiger, Klaus Harm, Jürgen Wertenbach
  • Publication number: 20050039959
    Abstract: In a vehicle having an air-conditioning system and a heat source, wherein a common medium for cooling and heating is used in the air-conditioning system and the heat source, and which includes means for expanding and compressing the medium in a medium circuit, the medium circuit includes a first branch which extends between a combining point and a branching point, where the medium circuit branches off into a first sub-circuit extending through the heat source, and a second sub-circuit extending through the air-conditioning system, and the sub-circuits are combined again at the combining point, and a compressor and a first heat exchanger cooled by ambient air are arranged in the first branch between the combining point and the branch point.
    Type: Application
    Filed: July 16, 2004
    Publication date: February 24, 2005
    Inventors: Frank Fruhauf, Klaus Harm, Alfons Rennefeld, Jurgen Wertenbach
  • Publication number: 20050034473
    Abstract: In an air-conditioning system for a motor vehicle having an integrated heat pump for cooling and heating, in which refrigerant is circulated and which allows heat exchange with the incoming air for the interior compartment of the motor vehicle, the heat transfer is effected either directly, by means of a refrigerant/air heat exchanger through which the air for the interior compartment is conducted, or by means of a secondary refrigerant circuit, which includes two expansion devices and three heat exchangers provided in the refrigerant circuit of the system.
    Type: Application
    Filed: June 21, 2004
    Publication date: February 17, 2005
    Inventors: Roland Casar, Jan Gartner, Steffen Geiger, Klaus Harm, Jurgen Wertenbach
  • Patent number: 6007420
    Abstract: An operating element in a motor vehicle having a hollow gripping section which can be gripped by an occupant, is arranged above the leg space of the motor vehicle and is provided in a ventilatable manner with air outlet openings to which air is guided through an air guiding duct which flows through air outlet openings into the occupant compartment. The air guiding duct starts in the leg space of the occupant compartment, and, from the gripping section heated by the effect of the sun, warmer air can flow off through the air outlet openings into the occupant compartment. By way of the air guiding duct, cooler air from the leg space is taken into the gripping suction.
    Type: Grant
    Filed: August 18, 1998
    Date of Patent: December 28, 1999
    Assignee: DaimlerChrysler AG
    Inventors: Klaus Harm, Thomas Schwarz