Patents Examined by Ljiljana V. Ciric
  • Patent number: 10274211
    Abstract: An air conditioner capable of detecting resonance of a casing of an outdoor or indoor unit of an air conditioner at a low cost with high accuracy is provided. An outdoor unit of the air conditioner includes: a propeller fan that blows air to a heat exchanger; a fan motor that drives the propeller fan; a current detector that detects a current value of the fan motor; a phase detector that detects the magnetic pole position of the fan motor; a fan rotation speed detector that detects the rotation speed of the fan motor; a pulsation detector that detects pulsation of the current value; and a resonance determiner that determines resonance of a system of a casing of the outdoor unit having the fan motor. If the resonance determiner determines resonance, a controller executes resonance avoidance control for increasing or decreasing the fan rotation speed by a predetermined rotation speed.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: April 30, 2019
    Assignee: Hitachi-Johnson Controls Air Conditioning, Inc.
    Inventors: Shuuhei Tada, Katsuaki Nagahashi, Koji Naito, Kazumoto Urata, Hayato Mori
  • Patent number: 10274245
    Abstract: A heat exchange unit includes a first heat exchanger, a second heat exchanger and a water guiding member. The first heat exchanger has a first heat exchange part exchanging heat between a refrigerant flowing in an interior and air passing an exterior. The second heat exchanger has a second heat exchange part disposed below the first heat exchange part and exchanging heat between the refrigerant flowing in an interior and air passing an exterior. The second heat exchanger is integrated with the first heat exchanger. The water guiding member is disposed between the first heat exchange part and the second heat exchange part and guides condensation water generated on the first heat exchange part to the second heat exchange part. The heat exchange unit is preferably part of a refrigeration device that has a two element compression mechanism, an intermediate refrigerant pipe, and a switching mechanism.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: April 30, 2019
    Assignee: Daikin Industries, Ltd.
    Inventors: Ryuhei Kaji, Shun Yoshioka
  • Patent number: 10268219
    Abstract: An adapter to connect an industry standard low-voltage thermostat to a central HVAC system with a mains-voltage fan coil unit. The adapter detects the operating conditions of the thermostat, and only switches a power connection to the fan coil unit on if it is capable of heating while in heating mode or cooling while in cooling mode.
    Type: Grant
    Filed: August 3, 2014
    Date of Patent: April 23, 2019
    Inventor: Oliver Markus Haynold
  • Patent number: 10260792
    Abstract: The dry ice bag for use with a cooler is a device that receives a piece of dry ice, and which is placed inside of a cooler in order to cool said cooler. The dry ice bag includes a mesh opening along a bottom surface that is selectively exposed via a flap member in order to regulate the amount of cold that escapes from the dry ice bag. The dry ice bag also includes a securing member on a top surface such that the entire device is suspended from underneath a top surface of the cooler thereby enabling cold air to descend.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: April 16, 2019
    Inventor: Andrew Kyle Frank
  • Patent number: 10254006
    Abstract: A compressor noise suppressing structure including a dehumidifier. The compressor noise suppressing structure includes an installation member fixed to a base frame to support and accommodate a component installed within a housing, and a noise-proof member attached to the installation member and extending towards a first end of the base so as to cover at least one side of the compressor. According to the configuration of the compressor noise suppressing structure, noise generated when the compressor is operated is simultaneously blocked by the nose-proof member and the housing, and the installation member and the noise-proof member are configured as a single component.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: April 9, 2019
    Assignee: COWAY CO., LTD
    Inventors: Hyun-Jin Hong, Chan-Jung Park, Sang-Woo Kang
  • Patent number: 10240807
    Abstract: A desiccant cooling system includes a desiccant cooler including a desiccant cooling path through which air introduced from the outside passes, a desiccant dehumidifier on the desiccant cooling path to pass through air and remove humidity of the air, and a water cooling portion cooling cooling water by using the low-humidity air that has passed through the desiccant dehumidifier; and a vapor compression cooling device including a water cooled condenser disposed to be cooled by the cooling water cooled by the water cooling portion so as to condense a refrigerant flowing inside the water cooled condenser, wherein the refrigerant is circulated in the water cooled condenser.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: March 26, 2019
    Inventor: Dae Young Lee
  • Patent number: 10240839
    Abstract: An exemplary system includes a compressor, a condenser, an expander, and an evaporator fluidly coupled to form a vapor-compression circuit, and an electric motor configured to drive the compressor. An inverter having a plurality of switching elements is configured to provide an output voltage to the electric motor through operation of the switching elements. A waste heat recovery circuit is configured to transfer waste heat from the inverter to a load. A controller is configured provide switching commands to the switching elements of the inverter. The controller is further configured to sense a condition of the system, determine a heat production requirement based at least in part upon the system condition, and to vary the number of switching commands per unit time based at least in part upon the heat production requirement.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: March 26, 2019
    Assignee: Trane International LLC.
    Inventors: Benjamin James Sykora, Nathan Thomas West, Pavak Mehta
  • Patent number: 10234180
    Abstract: A flow control cartridge is used with a cold plate to form a cold plate assembly within which a refrigerant circulates for cooling at least one heat generating device. The cartridge includes a thermal expansion valve and a sensing portion that with a bellows-type actuator within the cartridge. The bellows-type actuator is located directly in a stream of the refrigerant exiting the cold plate. The thermal expansion valve is comprised of a main body having an inlet orifice arranged to receive refrigerant that has been subcooled from a condenser of a vapor compression system or a recuperative heat exchanger, and a needle arranged in an expanded section of the main body in association with discharge ports in the expanded section for discharging the refrigerant in a two-phase state into the cold plate.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: March 19, 2019
    Inventors: David M. Sykes, Joshua C. Dominico, Robert P. Scaringe, Gregory S. Cole, Daniel A. Staples
  • Patent number: 10190814
    Abstract: The condensate evaporator has a pan for collecting condensate and a heating element that is integral with the pan. The heating element includes a U-shaped copper tube and an electrically conductive wire that extends through the tube with each end thereof extending from the tube for connection to an electrical circuit.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: January 29, 2019
    Assignee: Component Hardware Group, Inc.
    Inventors: Stanley Szprengiel, Thomas Graham
  • Patent number: 10183550
    Abstract: Methods and systems for providing controlling environmental conditions in a passenger compartment of a vehicle are presented. In one example, various low cost expansion valves are included in a system that has a receiver positioned downstream of an exterior heat exchanger to provide a climate control system with heating, cooling, dehumidification, and de-icing modes.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: January 22, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: James George Gebbie, Clay Wesley Maranville, Timothy Noah Blatchley
  • Patent number: 10174977
    Abstract: A system including a setpoint module, a summer, a control module, and an expansion valve module. The setpoint module is configured to indirectly control sub-cooling of a condenser by adjusting a superheat setpoint based on (i) a return air temperature setpoint or a supply air temperature setpoint, and (ii) an outdoor ambient temperature. The summer is configured to determine an error between the superheat setpoint and a superheat level of a compressor. The control module is configured to generate a control signal based on the error. The expansion valve module is configured to electronically control a state of an expansion valve based on the control signal.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: January 8, 2019
    Assignee: Vertiv Corporation
    Inventors: Zhiyong Lin, Benedict J. Dolcich, John F. Judge
  • Patent number: 8434323
    Abstract: A cooling system for a motor powering a compressor in a vapor compression system includes a housing enclosing the motor and a cavity located within the housing. A fluid circuit circulates a cooling fluid in the motor, and includes a first connection in the housing to receive cooling fluid and a second connection in the housing to remove cooling fluid. The fluid circuit includes a passageway for cooling fluid positioned in an internal chamber formed in a motor shaft.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: May 7, 2013
    Assignee: Johnson Controls Technology Company
    Inventors: Andrew M Welch, Steven J Estes, John C Hansen, Steven T Sommer, Gregory K Beaverson
  • Patent number: 7971631
    Abstract: A heat exchanger unit for motor vehicles includes one first heat exchanger and one second heat exchanger. Each heat exchanger includes two collector pipes which are arranged at a distance from each other. One collector pipe of the first heat exchanger is arranged substantially adjacent to one collector pipe of the second heat exchanger. Also, the other collector pipe of the first heat exchanger is arranged substantially adjacent to the other collector pipe of the second heat exchanger.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: July 5, 2011
    Assignee: Behr GmbH & Co. KG
    Inventors: Manuel Alcaine, Klaus Hassdenteufel, Markus Höglinger, Wolfgang Reier, Rainer Ruoff, Michael Spieth
  • Patent number: 7607475
    Abstract: An apparatus includes heat-generating structure disposed in an environment having an ambient pressure, and a cooling system for removing heat from the heat-generating structure. The cooling system includes a fluid coolant, structure which reduces a pressure of the coolant to a subambient pressure at which the coolant has a boiling temperature less than a temperature of the heat-generating structure; and structure which directs a flow of the liquid coolant at the subambient pressure so that it is brought into thermal communication with the heat-generating structure, the coolant then absorbing heat and changing to a vapor.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: October 27, 2009
    Assignee: Raytheon Company
    Inventor: Richard M. Weber
  • Patent number: 7134483
    Abstract: A heat exchanger having an air/air heat exchanger, an air/refrigerant heat exchanger coupled to the air/air heat exchanger by a connecting tube, and a phase change material. The air/refrigerant heat exchanger having a series of stacked plates, such that the phase change material is contained within a first gap between one of the stacked plates and another of the stacked plates.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: November 14, 2006
    Assignee: Flair Corporation
    Inventor: James W. Barnwell
  • Patent number: 6971443
    Abstract: A thermal module with temporary heat storage. The thermal module includes a heat storage, a heat absorber, a heat dissipater, and a heat pipe for rapidly transferring heat from the heat absorber to the heat dissipater. The heat storage includes a phase change material and is in contact with the heat pipe. When heat quantities generated by the system are greater than a predefined reasonable thermal target, heat in excess of the thermal target is temporarily absorbed into the heat storage through the melting of the PCM. When the heat quantities generated by the system are again less than the thermal target, the PCM re-freezes, releasing the stored heat to be dissipated normally.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: December 6, 2005
    Assignee: Compal Electronics, Inc.
    Inventors: Shao-Tsu Kung, Chen-Hua Liu
  • Patent number: 6739389
    Abstract: The absence or shortage of a heat transfer medium can be detected without any time lag. While the medium is circulated through a water jacket and an exhaust gas heat exchanger which receives heat from the exhaust gas, heat generated by the engine can be recovered. A first sensor is provided at a waste heat recovering location in a circulation path of the medium. A second sensor is provided at a downstream side of sensor. When the medium is absent, a difference in measured temperature develops between sensor and sensor. A heat transfer medium shortage signal is outputted when the difference in the measured temperature between the first sensor and the second sensor exceeds a predetermined reference level.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: May 25, 2004
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yoshinori Nakagawa, Keiichirou Bungo
  • Patent number: 6408771
    Abstract: Methods are presented to increase the throughput of a recovery boiler equipped with at least primary and secondary levels of injection of air. The methods comprise operating the recovery boiler with a third level of oxidant injection below or at the same level as the secondary level, and oxygen enrichment applied to at least the secondary level and said third level.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: June 25, 2002
    Assignees: Air Liquide America Corporation, American Air Liquide, L'Air Liquide Societe Anonyme pour l'Etude et, l'Exploitation des Procedes Georges Claude, Jansen Combustion and Boiler Technologies, Inc.
    Inventors: Louis C. Philippe, Eric L. Duchateau, David R. Scheeff, Arie Verloop, Edward C. Dye
  • Patent number: 6347988
    Abstract: A slide door unit for an automotive air conditioner, has a door housing which has a concave inner surface and laterally opposed side walls. The side walls have arcuate guide grooves respectively. A slide door member has a convex outer surface slidable on and along the concave inner surface of the door housing. The slide door member has a concave inner surface. Racks are provided on laterally opposed sides of the concave inner surface of the slide door member. Guide pins are secured to laterally opposed ends of the slide door member. The guide pins are slidably engaged with the arcuate guide grooves of the door housing. A pinion gear unit includes two pinion gears and a shaft by which the pinion gears are connected. The pinion gear unit is rotatably held by the laterally opposed side walls of the door housing having the two pinion gears meshed with the racks respectively. A resilient structure is further provided, which is defined by each of the pinion gears of the pinion gear unit.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: February 19, 2002
    Assignee: Calsonic Kansei Corporation
    Inventors: Katsuhiro Kurokawa, Akihiro Tsurushima, Yukio Tanaka
  • Patent number: 6330910
    Abstract: A heat exchanger for a motor vehicle exhaust includes a tubular body having a first end, a second end, a peripheral sidewall, and at least two flow passages that extend between the first end and the second end. The at least two flow passages include at least one heat exchange fluid flow passage and at least one bypass fluid flow passage. A heat exchange coil is positioned in the at least one heat exchange fluid flow passage. The heat exchange coil has an inlet and an outlet extending through the sidewall of the tubular body. A valve is provided for selecting between the at least one heat exchange fluid flow passage and the at least one bypass fluid flow passage.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: December 18, 2001
    Inventor: Easton Bennett