Patents by Inventor Tobias Haas
Tobias Haas 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: 20190160909Abstract: The invention relates to a multi-zone air conditioning system for vehicles (1) with several air conditioning zones (2), in particular for buses, characterized thereby that an air temperature control unit (3) is implemented to generate simultaneously warm air and cold air, wherein the cold air across a cold air duct (5) and the warm air across a warm air duct (6) extend separated from one another as a double conduit over the length of the vehicle (1) and that decentralized air mixing units (4) with at least one air outlet (20) are disposed along the double conduit and that the air outlets (20) are assigned to the air conditioning zones (2) of the vehicle (1).Type: ApplicationFiled: November 6, 2018Publication date: May 30, 2019Inventors: Martin Hötzel, Gerald Richter, Tobias Haas, Martin Schulze
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Patent number: 10017028Abstract: The present invention relates to the heat exchanger 1 of refrigerant circuitry of an air-conditioning system for a vehicle, which enables a bidirectional pass flow. The air-conditioning system is configured to perform a combined operation of cooling device mode and heat pump mode, the heat exchanger 1 is formed in the form of a multi-pass, and the flow direction of a refrigerant varies depending on operation mode. The first heat exchanger 1 formed in the form of a multi-pass includes header pipes 2 and 3, flow paths assigned to respective passes, and means configured to partition an internal volume space of one or more header pipes 2 and 3 into independent regions. A first pass of the heat exchanger 1 has a greater flow cross section and greater heat exchange surface than the last pass.Type: GrantFiled: November 7, 2013Date of Patent: July 10, 2018Assignee: HANON SYSTEMSInventors: Peter Heyl, Tobias Haas, Marc Graaf, Milan Moravek, Jiri Dobner, Jan Gregus-Kollar
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Patent number: 9346336Abstract: A refrigerant circuit of an air conditioning system for a passenger compartment of a motor vehicle having a primary circuit having a compressor configured to compress a refrigerant, a first heat exchanger in fluid communication with the compressor and configured to transfer heat between a refrigerant and the environment, a first expansion element in fluid communication with the first heat exchanger, and a second heat exchanger in fluid communication with the first expansion element and the compressor, the second heat exchanger configured to dehumidify intake air of the passenger compartment and a secondary circuit having a first flow pathway and a second flow pathway, the first flow pathway having a third heat exchanger in fluid communication with the compressor and configured to transfer heat from the refrigerant to the passenger compartment and a second expansion element in fluid communication with the third heat exchanger, and a third expansion element.Type: GrantFiled: April 25, 2013Date of Patent: May 24, 2016Assignee: Hanon SystemsInventors: Marc Graaf, Tobias Haas
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Patent number: 9170038Abstract: An air conditioning unit for a combined refrigeration plant and heat pump mode of operation for vehicles is disclosed, wherein the air conditioning unit includes a primary circuit and a secondary passage, and a power consumption required by the air conditioning unit to heat the passenger compartment is minimized.Type: GrantFiled: May 30, 2007Date of Patent: October 27, 2015Assignee: Halla Visteon Climate Control CorporationInventors: Roman Heckt, Marc Graaf, Tobias Haas
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Publication number: 20150251517Abstract: The present invention relates to the heat exchanger 1 of refrigerant circuitry of an air-conditioning system for a vehicle, which enables a bidirectional pass flow. The air-conditioning system is configured to perform a combined operation of cooling device mode and heat pump mode, the heat exchanger 1 is formed in the form of a multi-pass, and the flow direction of a refrigerant varies depending on operation mode. The first heat exchanger 1 formed in the form of a multi-pass includes header pipes 2 and 3, flow paths assigned to respective passes, and means configured to partition an internal volume space of one or more header pipes 2 and 3 into independent regions. A first pass of the heat exchanger 1 has a greater flow cross section and greater heat exchange surface than the last pass.Type: ApplicationFiled: November 7, 2013Publication date: September 10, 2015Inventors: Peter Heyl, Tobias Haas, Marc Graaf, Milan Moravek, Jiri Dobner, Jan Gregus-Kollar
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Patent number: 8959936Abstract: A method for operating an HVAC system includes the steps of adjusting a heating temperature of a heat exchanger disposed in a first flow passage, directing a first partial air mass flow through the first flow passage, directing a second partial air mass flow through a second flow passage, and directing the first partial air mass flow and the second partial air mass flow downstream of the first flow passage and the second flow passage, wherein the heating temperature of the heat exchanger required to at least one of achieve and maintain a desired climate in the passenger compartment of the vehicle is set as a maximum heating temperature for the heat exchanger, and wherein only an amount of energy required to at least one of achieve and maintain a desired climate in the passenger compartment of the vehicle is added to the HVAC system.Type: GrantFiled: January 18, 2011Date of Patent: February 24, 2015Assignee: Halla Visteon Climate Control CorporationInventors: Gerald Richter, Tobias Haas, Marc Graaf
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Publication number: 20140331710Abstract: The invention relates to a compact vehicle HVAC system including an evaporator unit, a condenser unit, and a component unit, as well as a refrigerant circuit. The evaporator unit and the condenser unit each are provided with air-passed heat exchangers and a fan in a casing. Further circuit components are displaced within the component unit. The casings of the evaporator unit, the condenser unit, and the component unit advantageously establish a connected compact casing arrangement. The heat exchangers are displaced within the compact casing arrangement. The refrigerant circuit is established for a combined refrigeration plant and heat pump operation as well as an afterheating operation, whereby in the afterheating operational mode the heating power of the afterheater established as condenser/gas cooler and the cooling power of the evaporator are controllable independently of each other.Type: ApplicationFiled: July 25, 2014Publication date: November 13, 2014Inventors: Jörn Fröhling, Marc Graaf, Felix Girmscheid, Gerald Richter, Gerd Vondahlen, Florian Wieschollek, Tobias Haas
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Patent number: 8823945Abstract: The invention relates to a measuring device for determining a vegetation index value (REIP) of plants. The measuring device comprises a plurality of light emitting elements, each of which emits substantially monochromatic light at a predetermined wavelength, a light receiving element which receives light from the light emitting elements reflected by the plants and generates a signal indicating the respective intensity of the received light, and a control means which successively activates the light emitting elements in a cyclical sequence, determines the respective intensity of the reflected light based on the output signal of the light receiving element, and calculates the vegetation index value based on the determined intensities of the overall measurement cycle. According to the invention, a light frequency converter is provided as the light receiving element.Type: GrantFiled: August 4, 2010Date of Patent: September 2, 2014Assignee: Georg Fritzmeier GmbH & Co. KGInventor: Tobias Haas
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Publication number: 20130250487Abstract: A switch bay for a high-voltage switchgear assembly includes three gas-insulated circuit breakers each for corresponding one of first, second and third current phases. The circuit breakers are arranged parallel to one another along an x direction. Three switch disconnectors are provided for a corresponding one of the first, second and third current phases. The switch disconnectors each have a corresponding isolating gap. The isolating gaps are arranged parallel to one another. A first busbar phase conductor section of the first current phase and a second busbar phase conductor section of the second current phase extend parallel to one another along a y direction, which runs transversely with respect to the x direction. A busbar connection is provided for connection of a third busbar phase conductor section of the third current phase.Type: ApplicationFiled: May 16, 2013Publication date: September 26, 2013Applicant: ABB Technology AGInventors: Walter HOLAUS, Alexander Troeger, Tobias Haas, Dieter Fuechsle
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Publication number: 20130120753Abstract: The invention relates to a measuring device for determining a vegetation index value (REIP) of plants. The measuring device comprises a plurality of light emitting elements, each of which emits substantially monochromatic light at a predetermined wavelength, a light receiving element which receives light from the light emitting elements reflected by the plants and generates a signal indicating the respective intensity of the received light, and a control means which successively activates the light emitting elements in a cyclical sequence, determines the respective intensity of the reflected light based on the output signal of the light receiving element, and calculates the vegetation index value based on the determined intensities of the overall measurement cycle. According to the invention, a light frequency converter is provided as the light receiving element.Type: ApplicationFiled: August 4, 2010Publication date: May 16, 2013Inventor: Tobias Haas
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Publication number: 20130025311Abstract: A fluid conditioning system includes a refrigeration circuit and a heat pump circuit. The refrigeration circuit includes a heat exchanger and an evaporator. The heat pump circuit includes a condenser, a chiller serially connected to the evaporator, and a first expansion member in fluid communication with the chiller, wherein the heat pump circuit is configured to utilize heat from ambient air and a cooling agent circuit for heating a passenger compartment of a vehicle.Type: ApplicationFiled: July 18, 2012Publication date: January 31, 2013Applicant: VISTEON GLOBAL TECHNOLOGIES, INC.Inventors: Marc Graaf, Tobias Haas
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Patent number: 8037698Abstract: An air conditioning unit is disclosed for motor vehicles. The air conditioning unit includes with a compression refrigerant circuit where a refrigerant circulates, comprising comprehensively switched in series with respect to fluid flow at least one compressor upstream of a heat-delivering heat exchanger, and an expansion element upstream of a heat-absorbing heat exchanger, whereby into the flow path leading from the outlet of the heat-delivering heat exchanger to the expansion element an additional heat exchanger is integrated thermally coupled to at least one cooling means the temperature of which can be put to values below the temperature of the refrigerant in the compression refrigeration circuit at the position of the refrigerant's outflow from the heat-delivering heat exchanger, and a method for its operation.Type: GrantFiled: July 17, 2008Date of Patent: October 18, 2011Assignee: Visteon Global Technologies, Inc.Inventors: Roman Heckt, Marc Graaf, Tobias Haas
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Publication number: 20110174000Abstract: A method for operating an HVAC system includes the steps of adjusting a heating temperature of a heat exchanger disposed in a first flow passage, directing a first partial air mass flow through the first flow passage, directing a second partial air mass flow through a second flow passage, and directing the first partial air mass flow and the second partial air mass flow downstream of the first flow passage and the second flow passage, wherein the heating temperature of the heat exchanger required to at least one of achieve and maintain a desired climate in the passenger compartment of the vehicle is set as a maximum heating temperature for the heat exchanger, and wherein only an amount of energy required to at least one of achieve and maintain a desired climate in the passenger compartment of the vehicle is added to the HVAC system.Type: ApplicationFiled: January 18, 2011Publication date: July 21, 2011Applicant: VISTEON GLOBAL TECHNOLOGIES, INC.Inventors: Gerald Richter, Tobias Haas, Marc Graaf
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Publication number: 20110036117Abstract: The invention relates to a compact vehicle HVAC system including an evaporator unit, a condenser unit, and a component unit, as well as a refrigerant circuit. The evaporator unit and the condenser unit each are provided with air-passed heat exchangers and a fan in a casing. Further circuit components are displaced within the component unit. The casings of the evaporator unit, the condenser unit, and the component unit advantageously establish a connected compact casing arrangement. The heat exchangers are displaced within the compact casing arrangement. The refrigerant circuit is established for a combined refrigeration plant and heat pump operation as well as an afterheating operation, whereby in the afterheating operational mode the heating power of the afterheater established as condenser/gas cooler and the cooling power of the evaporator are controllable independently of each other.Type: ApplicationFiled: August 4, 2010Publication date: February 17, 2011Applicant: VISTEON GLOBAL TECHNOLOGIES, INC.Inventors: Jörn Fröhling, Marc Graaf, Felix Girmscheid, Gerald Richter, Gerd Vondahlen, Florian Wieschollek, Tobias Haas
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Patent number: 7520133Abstract: A thermodynamic engine converts the superheated steam of at least one working medium into kinetic energy using a decompression device. Said engine includes a low-temperature circuit, in which a first working medium is transported through a first heat exchanger and subsequently through the decompression device and a high-temperature circuit, in which a second working medium is transported through a second heat exchanger and subsequently through the decompression device. The first heat exchanger and the second heat exchanger are located in the exhaust system of an internal combustion engine, and the internal combustion engine a coolant circuit can be used to heat the working mediums in separate collection containers.Type: GrantFiled: June 20, 2005Date of Patent: April 21, 2009Assignee: Bayerische Motoren Werke AktiengesellschaftInventors: Michael Hoetger, Herbert Clemens, Tobias Haas, Gunnar Freitag, Michael Preis, Raymond Freymann, Andreas Obieglo
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Publication number: 20090019861Abstract: An air conditioning unit is disclosed for motor vehicles. The air conditioning unit includes with a compression refrigerant circuit where a refrigerant circulates, comprising comprehensively switched in series with respect to fluid flow at least one compressor upstream of a heat-delivering heat exchanger, and an expansion element upstream of a heat-absorbing heat exchanger, whereby into the flow path leading from the outlet of the heat-delivering heat exchanger to the expansion element an additional heat exchanger is integrated thermally coupled to at least one cooling means the temperature of which can be put to values below the temperature of the refrigerant in the compression refrigeration circuit at the position of the refrigerant's outflow from the heat-delivering heat exchanger, and a method for its operation.Type: ApplicationFiled: July 17, 2008Publication date: January 22, 2009Inventors: Roman Heckt, Marc Graaf, Tobias Haas
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Publication number: 20070283703Abstract: An air conditioning unit for a combined refrigeration plant and heat pump mode of operation for vehicles is disclosed, wherein the air conditioning unit includes a primary circuit and a secondary passage, and a power consumption required by the air conditioning unit to heat the passenger compartment is minimized.Type: ApplicationFiled: May 30, 2007Publication date: December 13, 2007Inventors: Roman Heckt, Marc Graaf, Tobias Haas
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Publication number: 20050229595Abstract: A thermodynamic engine converts the superheated steam of at least one working medium into kinetic energy using a decompression device. Said engine includes a low-temperature circuit, in which a first working medium is transported through a first heat exchanger and subsequently through the decompression device and a high-temperature circuit, in which a second working medium is transported through a second heat exchanger and subsequently through the decompression device. The first heat exchanger and the second heat exchanger are located in the exhaust system of an internal combustion engine, and the internal combustion engine a coolant circuit can be used to heat the working mediums in separate collection containers.Type: ApplicationFiled: June 20, 2005Publication date: October 20, 2005Applicant: Bayerische Motoren Werke AGInventors: Michael Hoetger, Herbert Clemens, Tobias Haas, Gunner Freitag, Michael Preis, Raymond Freymann, Andreas Obieglo
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Patent number: D688633Type: GrantFiled: November 11, 2011Date of Patent: August 27, 2013Assignee: ABB Technology AGInventors: Walter Holaus, Tobias Haas, Urs Kruesi
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Patent number: D703152Type: GrantFiled: July 10, 2013Date of Patent: April 22, 2014Assignee: ABB Technology AGInventors: Walter Holaus, Tobias Haas, Urs Kruesi