Patents by Inventor Reinhard Radermacher

Reinhard Radermacher 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).

  • Patent number: 10823465
    Abstract: A system for heating/cooling includes a plurality of thermoelastic modules. Each of the modules includes one or more structures formed of shape memory alloy, which converts from austenite to martensite upon application of a first stress and release latent heat from the conversion. During a first part of a heating/cooling cycle, a first module is stressed to cause conversion. The latent heat released from the first module is rejected to a heat sink while a second unstressed module absorbs heat from a heat source. During a second part of the heating/cooling cycle, the first and second modules are connected together to transfer heat therebetween for heat recovery. The cycle can be repeated indefinitely with the first and second modules alternating roles. Structures of the thermoelastic cooling material and specific applications thereof are also disclosed.
    Type: Grant
    Filed: June 2, 2018
    Date of Patent: November 3, 2020
    Assignee: University of Maryland, College Park
    Inventors: K. Reinhard Radermacher, Ichiro Takeuchi, Yunho Hwang, Yiming Wu, Suxin Qian, Jiazhen Ling
  • Patent number: 10808159
    Abstract: A cooling system based on thermoelastic effect is provided. The system comprises a heat sink, a refrigerated space and a regenerator coupled to the refrigerated space and to the heat sink to pump heat from the refrigerated space to the heat sink. The regenerator comprises solid thermoelastic refrigerant materials capable of absorbing or releasing heat.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: October 20, 2020
    Assignee: University of Maryland, College Park
    Inventors: Ichiro Takeuchi, Jun Cui, Manfred R. Wuttig, Yiming Wu, K. Reinhard Radermacher, Yunho Hwang, Jan Muehlbauer
  • Patent number: 10801750
    Abstract: Despite otherwise uncomfortable conditions in a surrounding environment, a customizable microenvironment can be created around a user to maintain a comfortable temperature and/or humidity level using a comfort unit. For example, the environment may be an office building where conditions are out of the comfortable range to save on energy or for other reasons, a factory/shop environment that is poorly conditioned, or an outdoor location with little to no conditioning. A sensing unit can monitor biometric and environmental data and can determine a comfort level of the user. The comfort unit can then dynamically respond to the determined comfort level and adjust the microenvironment to improve the user's comfort level. The comfort unit can follow the user as the user moves within the macro-environment, or can otherwise move within the macro-environment to achieve certain functions, such as recharging or spatial shifting of thermal load within the overall macro-environment.
    Type: Grant
    Filed: June 11, 2016
    Date of Patent: October 13, 2020
    Assignee: University of Maryland, College Park
    Inventors: K. Reinhard Radermacher, Vikrant C. Aute, Yunho Hwang, Jiazhen Ling, Jelena Srebric, Jan Muehlbauer, Rohit Dhumane, Yilin Du, Daniel Alejandro Dalgo Reyes, Nicholas W. Mattise
  • Publication number: 20200318911
    Abstract: Heat exchangers and methods of producing thereof having fins with slots formed therethrough, and a continuous tube having parallel tube runs connected by reverse bends to define a serpentine coil that traverses back and forth through the slots formed in the fins. Each fin has surface enhancements and is metallurgically joined to corresponding portions of the tube at the slots with brazed joints therebetween.
    Type: Application
    Filed: December 14, 2018
    Publication date: October 8, 2020
    Inventors: Yoram L. SHABTAY, Daniel BACELLAR, Cara S. MARTIN, Dennis M. NASUTA, Reinhard RADERMACHER, John R.H. BLACK
  • Patent number: 10119059
    Abstract: A cooling system based on thermoelastic effect is provided. The system comprises a heat sink, a refrigerated space and a regenerator coupled to the refrigerated space and to the heat sink to pump heat from the refrigerated space to the heat sink. The regenerator comprises solid thermoelastic refrigerant materials capable of absorbing or releasing heat.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: November 6, 2018
    Assignees: THE UNIVERSITY OF MARYLAND
    Inventors: Jun Cui, Ichiro Takeuchi, Manfred Wuttig, Yiming Wu, Reinhard Radermacher, Yunho Hwang, Jan Muehlbauer
  • Publication number: 20160209090
    Abstract: A heat transfer apparatus (102) including: (i) an evaporation chamber (116) in heat transfer communication with a first heat source, wherein the first heat source causes a liquid in the evaporation chamber (116) to evaporate into a gas; (ii) an adsorption/absorption chamber (134) in fluid communication with the evaporation chamber (116) and in heat transfer communication with a cooling source, the adsorption/absorption chamber (134) containing a microemulsion which adsorbs/absorbs the gas, when cooled, as droplets of the liquid sequestered within the microemulsion to form a used microemulsion; and (iii) a desorption chamber (136) in fluid communication with the adsorption/absorption chamber (134) and the evaporation chamber (116), and in heat transfer communication with a second heat source capable of desorbing the liquid droplets out of the used microemulsion as the liquid, without vaporizing the liquid, to form a regenerated microemulsion. Also, methods of using the heat transfer apparatus.
    Type: Application
    Filed: August 19, 2014
    Publication date: July 21, 2016
    Inventors: Bao YANG, Reinhard RADERMACHER, Baolan (Jessica) SHI
  • Publication number: 20160200591
    Abstract: A heat transfer apparatus (104) comprising: (i) an adsorption/absorption chamber (122) in fluid communication with an exhaust stream (118) from a wet-cooling tower (112) and in heat transfer communication with a cooling source (120), the adsorption/absorption chamber (122) containing a microemulsion (124) which adsorbs/absorbs water vapor present in the exhaust stream (118), when cooled, as water droplets sequestered within the microemulsion (124) to form a used microemulsion (126); and (ii) a desorption chamber (134) in fluid communication with the adsorption/absorption chamber (122) and the wet-cooling tower (112), and in heat transfer communication with a heat source capable of desorbing the water droplets out of the used microemulsion (126) as liquid water (140), without vaporizing the water, to form a regenerated microemulsion (138). Also, methods of using the heat transfer apparatus.
    Type: Application
    Filed: August 19, 2014
    Publication date: July 14, 2016
    Applicant: University of Maryland
    Inventors: Bao YANG, Reinhard RADERMACHER, Fangyu CAO, Baolan (Jessica) SHI
  • Publication number: 20140223939
    Abstract: A centralized heat exchange system for controlling a plurality of heat exchangers in heat pump cycle includes a plurality of heat exchanging units; a compressor; a network of refrigerant piping connected to each of the plurality of heat exchanging units and the compressor; and a controller configured to receive signals from sensors to monitor temperature or the like of spaces/compartments to be controlled. The controller controls the compressor and a reversing valve and expansion valves installed in the network of refrigerant piping to establish, in the network of refrigerant piping, one or more of a heat-pump loop that constitutes a vapor-compression cycle through an arrangement of a compressor, a condenser, an expansion valve, and an evaporator in accordance with a preset or user settable priority scheme that assigns at least one of the controlled spaces/compartments higher priority in control than the others.
    Type: Application
    Filed: December 21, 2012
    Publication date: August 14, 2014
    Applicant: OPTIMIZED THERMAL SYSTEMS, INC.
    Inventors: Dennis Michael Nasuta, Kurt Reinhard Radermacher
  • Patent number: 8584479
    Abstract: An air conditioner having a refrigeration cycle including a compressor, a radiator, a pressure-reducing device and an evaporator, a total heat exchanger for performing heat-exchange between outdoor air and air under cooling operation using the evaporator for a room to be air-conditioned, and for ventilating the room to be air-conditioned, and a desiccant rotor having a moisture adsorbing area for adsorbing moisture in the outdoor air when the outdoor air is introduced, and regenerating the moisture adsorbing area by heat of the radiator, the outdoor air successively flowing through the total heat exchanger, the evaporator and the moisture adsorbing area in this order and then entering the room to be air-conditioned.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: November 19, 2013
    Assignees: Sanyo Electric Co., Ltd., University of Maryland
    Inventors: Osamu Kuwabara, Reinhard Radermacher, Yunho Hwang, Jiazhen Ling
  • Publication number: 20120273158
    Abstract: A cooling system based on thermoelastic effect is provided. The system comprises a heat sink, a refrigerated space and a regenerator coupled to the refrigerated space and to the heat sink to pump heat from the refrigerated space to the heat sink. The regenerator comprises solid thermoelastic refrigerant materials capable of absorbing or releasing heat.
    Type: Application
    Filed: March 27, 2012
    Publication date: November 1, 2012
    Applicants: The University of Maryland
    Inventors: Jun Cui, Ichiro Takeuchi, Manfred Wuttig, Yiming Wu, Reinhard Radermacher, Yunho Hwang, Jan Muehlbauer
  • Publication number: 20120031133
    Abstract: An air conditioner having a refrigeration cycle including a compressor, a radiator, a pressure-reducing device and an evaporator, a total heat exchanger for performing heat-exchange between outdoor air and air under cooling operation using the evaporator for a room to be air-conditioned, and for ventilating the room to be air-conditioned, and a desiccant rotor having a moisture adsorbing area for adsorbing moisture in the outdoor air when the outdoor air is introduced, and regenerating the moisture adsorbing area by heat of the radiator, the outdoor air successively flowing through the total heat exchanger, the evaporator and the moisture adsorbing area in this order and then entering the room to be air-conditioned.
    Type: Application
    Filed: August 5, 2010
    Publication date: February 9, 2012
    Inventors: Osamu Kuwabara, Reinhard Radermacher, Yunho Hwang, Jiazhen Ling
  • Publication number: 20100090356
    Abstract: A dehumidification and regeneration system is described. A liquid desiccant solution may be used to extracts moisture from ambient air in a first location within a dehumidifier with a base. A regenerator in fluid communication with the dehumidifier may extract moisture from the liquid desiccant solution. One or more pumps may circulate the liquid desiccant through the dehumidifier. One or more pumps may circulate the liquid desiccant through the regenerator. The base may expose the liquid desiccant solution at least partially to the ambient air.
    Type: Application
    Filed: October 9, 2009
    Publication date: April 15, 2010
    Applicant: LDWorks, LLC
    Inventors: William Tyler Sines, Reinhard Radermacher, Anthony Giampapa, Kaye L. Brubaker, Matthew William Caplins, Amy E. Gardner, John Kucia
  • Patent number: 7631510
    Abstract: A multi-stage refrigeration system is provided. The refrigeration system includes a first compression element which produces a first compressed refrigerant stream. A mixer combines the first compressed refrigerant stream with an auxiliary refrigerant stream. A second compression element is coupled to the mixer and produces a second compressed refrigerant stream. A first heat exchanger receives the second compressed refrigerant stream and generates a cooled stream. A stream splitter receives the cooled stream and provides first and second output streams. A first expansion valve receives the first output stream and controls the flow of the first output stream and a second expansion valve receives the second output stream and controls the flow of the second output stream. A second heat exchanger generates the auxiliary refrigerant stream provided to the mixer.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: December 15, 2009
    Assignees: Thermal Analysis Partners, LLC., Sanyo Electric Co., Ltd.
    Inventors: Reinhard Radermacher, Toshikazu Ishihara, Hans Huff, Yunho Hwang, Masahisa Otake, Hiroshi Mukaiyama, Osamu Kuwabara, Ichiro Kamimura
  • Publication number: 20060191288
    Abstract: A multi-stage refrigeration system is provided. The refrigeration system includes a first compression element which produces a first compressed refrigerant stream. A mixer combines the first compressed refrigerant stream with an auxiliary refrigerant stream. A second compression element is coupled to the mixer and produces a second compressed refrigerant stream. A first heat exchanger receives the second compressed refrigerant stream and generates a cooled stream. A stream splitter receives the cooled stream and provides first and second output streams. A first expansion valve receives the first output stream and controls the flow of the first output stream and a second expansion valve receives the second output stream and controls the flow of the second output stream. A second heat exchanger generates the auxiliary refrigerant stream provided to the mixer.
    Type: Application
    Filed: February 28, 2005
    Publication date: August 31, 2006
    Inventors: Reinhard Radermacher, Toshikazu Ishihara, Hans Huff, Yunho Hwang, Masahisa Otake, Hiroshi Mukaiyama, Osamu Kuwabara, Ichiro Kamimura
  • Patent number: 5243837
    Abstract: An improved subcooling system for nonazeotropic working fluid leaving a condenser in a multi-compartment system passes the fluid leaving the condenser in heat exchange relationship with fluid evaporating within the evaporator. The heat exchange relationship can be effected by an internal subcooler in which the fluid leaving the condenser is directed through a conduit within the tube of a fin-tube evaporator, the conduit being of smaller dimension than the tube of the evaporator.
    Type: Grant
    Filed: March 6, 1992
    Date of Patent: September 14, 1993
    Assignee: The University of Maryland
    Inventors: Reinhard Radermacher, Dongsoo Jung
  • Patent number: 5235820
    Abstract: A refrigeration system for refrigerators having two or more compartments maintained at different temperatures comprises separate cycles for each compartment, each cycle in turn comprising separate evaporator means, heat exchanger means and compressor. To provide for cycle separation, the condenser may be split into separate units, connected by phase separators where appropriate. The system is particularly designed for use in connection with mixed, nonazeotropic refrigerants.
    Type: Grant
    Filed: November 19, 1991
    Date of Patent: August 17, 1993
    Assignee: The University of Maryland
    Inventors: Reinhard Radermacher, Dongsoo Jung
  • Patent number: 5207077
    Abstract: A dual evaporator refrigeration system cooling separate compartments at different temperatures employs specific combinations of environmentally safe refrigerants as working fluids. Each of the working fluids is a binary or ternary combination which yields enhanced efficiency in the dual evaporator system.
    Type: Grant
    Filed: March 6, 1992
    Date of Patent: May 4, 1993
    Assignee: The University of Maryland
    Inventors: Reinhard Radermacher, Dongsoo Jung
  • Patent number: 5092138
    Abstract: A dual evaporator refrigeration system cooling separate compartments at different temperatures employ specific combinations of refrigerants as working fluids. Each of the working fluids is a binary combination which yields enhanced efficiency in the dual evaporator system.
    Type: Grant
    Filed: July 10, 1990
    Date of Patent: March 3, 1992
    Assignee: The University of Maryland
    Inventors: Reinhard Radermacher, Dongsoo Jung
  • Patent number: 4926650
    Abstract: A refrigerant fluid and system containing and utilizing such fluid in which the fluid consists essentially of a mixture of trichloromonofluoromethane and 1-chloro-1,1-difluoroethane.
    Type: Grant
    Filed: May 18, 1988
    Date of Patent: May 22, 1990
    Assignee: Pennwalt Corporation
    Inventors: Douglas D. Dawn, Reinhard Radermacher
  • Patent number: 4724679
    Abstract: A process for transferring heat from a lower temperature material to a higher temperature material utilizes a non-azeotropic working fluid mixture and overlapping temperatures in the evaporator (desorber) and condenser (absorber). An apparatus for effectuating the process thermally couples the evaporator (desorber) and condenser (absorber).
    Type: Grant
    Filed: July 2, 1986
    Date of Patent: February 16, 1988
    Inventor: Reinhard Radermacher