Flow Line Connected Transfer Fluid Supply And Heat Exchanger Patents (Class 62/434)
  • Patent number: 6334331
    Abstract: An uninterrupted sub-loop water cooling system for supplying cooling water to a process machine during a short-term power interruption and a method for utilizing such system are disclosed. In the system, a buffer tank is provided for storing a quantity of cooling water maintained at a temperature of about 15° C. The buffer tank is provided with conduits for fluid communication with a process machine and at least one pump means operable by an uninterrupted power system such as a battery back-up system for pumping cooling water from the buffer tank to the process machine and then return to the buffer tank forming a sub-loop when a power shortage has occurred. The present invention system is effective in bridging a time gap between the occurrence of a power outage and the start of an emergency power generating system which amounts to between about 30 seconds and about 2 minutes such that cooling water supply to a process machine is not interrupted.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: January 1, 2002
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd
    Inventors: Ming-Chung Chen, Min-Ter Lai
  • Patent number: 6332335
    Abstract: By supplying a refrigerant utilized for cooling brine at a brine chiller unit (4) to a cooler (21) of a blast chiller (2), the internal space at the blast chiller (2) is cooled. In addition, the brine cooled at the brine chiller unit (4) is supplied to an ice heat storage tank (23) during the night and is supplied to a cold trap (7) during the daytime by switching a three way reversing valve (17). Thus, ice-making and chilled water storage are achieved at the ice heat storage tank (23) during the nighttime so that a tumble chiller (3) performs cooling during the daytime by using the chilled water that has been stored at the ice heat storage tank (23). Consequently, during the daytime, three coolers, i.e., the vacuum cooler (1), the blast chiller (2) and the tumble chiller (3), can be operated with a single brine chiller unit (4).
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: December 25, 2001
    Assignee: K E Corporation Co., Ltd.
    Inventors: Takeki Kajimoto, Tsuneo Harukawa
  • Patent number: 6330809
    Abstract: A generator/motor cooling apparatus comprising a cooler for cooling gas used to cool the generator/motor, the gas flowing serially across first and second heat exchangers that are supplied with water from an ambient source; and a chiller having an evaporator and a condenser with a closed refrigerant circuit between the evaporator and condenser; wherein water supplied to the second heat exchanger is chilled in the evaporator and returned to the second heat exchanger and water from the ambient source acts as the heat sink for the condenser side of the chiller.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: December 18, 2001
    Assignee: General Electric Company
    Inventors: William Hunter Boardman, IV, Dewey Reed Bosley, Edward Paul Sapiro
  • Patent number: 6327871
    Abstract: A refrigerator with at least one medium/low temperature-freezing compartment and a compression refrigeration system with a thermal storage, and a method of operating the refrigeration system with a thermal storage are provided. The refrigeration system includes a compressor, a condenser, a thermal storage, a medium/low temperature evaporator, a first expansion device, a second expansion device, a bypass line to bypass the second expansion device, a refrigerant valve to direct refrigerant flow after the thermal storage either to the bypass line or to the second expansion device, and control means to control temperature in the compartments, the compressor and the valve operations. The method comprises steps of charge and discharge of the thermal storage. During the thermal storage discharge refrigerant evaporates in the medium/low temperature evaporator providing refrigeration to the freezing compartment.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: December 11, 2001
    Inventor: Alexander P. Rafalovich
  • Publication number: 20010041210
    Abstract: Slush ice is produced in a liquid by adding a freezing point-depressing agent and particles to the liquid to form a liquid mix, and then cooling the liquid mix by heat exchange with a refrigeration circuit, ice crystals being formed in the liquid mix at nucleation sites provided by the particles. A slush ice of nonfrozen liquid and ice particles is produced and ice formation on the conduit in which the liquid mix flows is avoided.
    Type: Application
    Filed: April 19, 2001
    Publication date: November 15, 2001
    Inventors: Michael Kauffeld, Kaj Rosenstedt, Lars Bay Moller, Frank Elefsen
  • Patent number: 6311510
    Abstract: Refrigerant cooling coils inserted within a passage of brine in a heat exchanger are so deformed into a shape of flat elliptical cylinder that long axis of ellipse is parallel to a condensing surface, and a side or two sides of a pair of flat faces formed by deformation machining are fitted within the passage, closely contacted with an inner wall of the passage of the brine, in order to increase the contact surface between the refrigerant cooling ellipse coils and the inner wall of the passage of brine in the vapor trap plate and in order to enhance boundary film convection heat transfer coefficient of the brine circulated in the passage of said heat exchanger so as to provide excellent heat transfer property and great vapor condensing capability.
    Type: Grant
    Filed: April 11, 2000
    Date of Patent: November 6, 2001
    Assignee: Kyowa Vacuum Engineering, Ltd.
    Inventors: Ryouji Sunama, Airu Yao
  • Patent number: 6308530
    Abstract: Ice-filled cold storage means for the repeated freezing and, accompanied by the cooling of air or a cooling fluid, melting of the ice, with an elastic sleeve (2) for an ice supply, which is kept by a substantially dimensionally stable jacket (3) under close heat transfer contact at the location of an air or fluid guide and which is set up for moving air to be cooled or dehumidified or a cooling fluid past the ice supply.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: October 30, 2001
    Assignee: Integral Energietechnik GmbH
    Inventor: Joachim Paul
  • Patent number: 6302094
    Abstract: A heat exchanging coil is immersed in water in a heating pod heated over a fire or other heat source. Flexible tubing connected to the coil transmits heated water or other fluid under pressure from a water pump in a reservoir connected to the tubing. Loops of the tubing pass through various items used in outdoor activity including sleeping bags, tents, heaters, bowls, chairs, and even a shower. The heated water is pumped intermittently in a continuously recirculating flow through the system from the heating coil through the item(s) and back again through the heating coil. A timer connected to the pump allows flow of the heated water bolus at any desired timed interval. Alternately, cold water may be circulated through the system for cooling in conditions of extreme heat. Ice or snow or cold water may be used in the heating pod and the pump activated to circulate the chilled water.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: October 16, 2001
    Inventors: John D. Wehrly, Agnes A. Wehrly
  • Patent number: 6295837
    Abstract: The object of the present invention is to separate air at low power cost to produce high-pressure nitrogen gas and oxygen gas by utilizing cold of liquefied natural gas. Feed air is pre-purified and then introduced into a cryogenic separation unit, so that oxygen gas and nitrogen gas are separated. The nitrogen gas separated in the cryogenic separation unit is introduced into a second heat exchanger, and cooled by indirect heat exchange with a refrigerant. The nitrogen gas thus cooled is compressed in a low-temperature nitrogen compressor and supplied through a heater to an external plant for consumption. LNG is introduced into a first heat exchanger as a cold source. In the first heat exchanger, LNG cools and liquefies the refrigerant by indirect heat exchange. The liquefied refrigerant is sent to the second heat exchanger. The refrigerant is vaporized by indirect heat exchange with the nitrogen gas in the second heat exchanger. The vaporized refrigerant is returned to the first heat exchanger.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: October 2, 2001
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Ryo Den, Shinji Tomita
  • Publication number: 20010017035
    Abstract: A cooling device for cooling an object to be processed to a target temperature comprises a plurality of contact members mounted on a placing table, for supporting the object such that the object opposes a top surface of the placing table with an interval, temperature sensors for outputting temperature information of the object supported by the contact members, a first cooling unit for cooling the placing table to a temperature lower than the target temperature to cool the object, a second cooling unit for heating the object cooled by the first cooling unit to a temperature almost equal to the target temperature, and a contrast circuit for performing a switching operation between cooling by the first cooling unit and heating by the second cooling unit on the basis of the temperature information from the temperature sensors.
    Type: Application
    Filed: March 8, 2001
    Publication date: August 30, 2001
    Inventors: Tetsuya Sada, Osamu Hirose, Kiyohisa Tateyama
  • Publication number: 20010015075
    Abstract: A brine cooling apparatus is provided which addresses an environmental problem by not contributing to global warming and can prevent brine from freezing within a heat exchanger. The apparatus is structured such that a screw compressor, a condenser, a main expansion valve and an evaporator are connected by a pipe so as to cool brine flowing through the evaporator. The refrigerant is an ammonia refrigerant, the evaporator is a plate type heat exchanger constructed by laying a plural sheets of plates, and capacity control means is provided in such a manner as to control a capacity of the screw compressor in accordance with the flow amount of the brine.
    Type: Application
    Filed: April 30, 2001
    Publication date: August 23, 2001
    Inventors: Yoshifumi Ichikawa, Tsuneji Morohoshi
  • Patent number: 6276161
    Abstract: A modular air conditioning system comprises a self-contained refrigeration power cell, a heat exchanger remotely located from the refrigeration power cell, and a low pressure refrigerant communication circuit operably coupling the refrigeration power cell to the heat exchanger. The refrigeration power cell comprises a compressor, a condenser, an expansion device, and an evaporator which are serially coupled to form a high pressure closed refrigeration circuit. A drive mechanism, such as an electric or hydraulic motor, or conventional belt, is coupled to the compressor. The low pressure refrigerant communication circuit thermally interfaces with the condenser to remove heat from the high pressure closed refrigeration circuit. Alternatively, this circuit thermally interfaces with the evaporator to remove heat from the low pressure refrigerant. This heat exchanger is adapted to mount in the cabin of an over-the-road or off-road vehicle.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: August 21, 2001
    Assignee: Bergstrom, Inc.
    Inventors: Larry Peiffer, Terry Zeigler, William G. Guo
  • Patent number: 6260376
    Abstract: Air conditioning installation for a motor vehicle with a cold reservoir, which can be charged via an evaporator of a primary circuit, and with a heat exchanger which can deliver cold stored in the cold reservoir via a secondary circuit to the interior of the vehicle, in which the secondary circuit contains at least one further heat exchanger, which is in a heat-exchanging relationship with the evaporator of the primary circuit and preferably also with the cold reservoir.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: July 17, 2001
    Assignee: Valeo Klimasysteme GmbH
    Inventors: Noureddine Khelifa, Horst Riehl
  • Patent number: 6253566
    Abstract: A brine cooling apparatus is provided which addresses to an environmental problem by not contributing to global warming and can prevent brine from freezing within a heat exchange. The apparatus is structured such that a screw compressor, a condenser, a main expansion valve and an evaporator are connected by a pipe so as to cool brine flowing through the evaporator. The refrigerant is an ammonia refrigerant, the evaporator is a plate type heat exchanger constructed by laying a plural sheets of plates, and capacity control means is provided in such a manner as to control a capacity of the screw compressor in accordance with the flow amount of the brine.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: July 3, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Yoshifumi Ichikawa, Tsuneji Morohoshi
  • Patent number: 6253567
    Abstract: An ice thermal storage type air conditioner includes an outdoor unit 14 equipped with a compressor 12 and an outdoor heat exchanger 13, an indoor unit 17 equipped with an indoor heat exchanger 16 and an expansion valve 18b, and an ice thermal storage tank 5. The ice thermal storage tank is equipped with a heat exchanger exchanger used as a condenser when the accumulated heat is used. The heat exchanger has a pipe-shaped heat transfer tube 1 and a plate-shaped fin 2 installed to the heat transfer tube. The fin is installed vertically, and a plurality of rows of the heat transfer tubes and the fins are arranged.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: July 3, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Masao Imanari, Toshihiko Fukushima, Sachio Sekiya, Katsumi Matsubara, Kenji Tokusa, Yoshihiko Mochizuki
  • Patent number: 6247324
    Abstract: An air conditioning apparatus includes a case body, and an air cooling coil disposed in the case body to cool an air stream flowing thereacross. A blower is disposed in the case body, and is driven by an output shaft of a motor to blow the air stream across the air cooling coil and deliver cooled air stream forwardly and outwardly of the case body. A drain pane is disposed under the air cooling coil to collect droplets of condensate, and has a first outlet to drain water therein. A water pump includes a pump body with an accommodation chamber, and an impeller received in the chamber and provided with a driven shaft. The driven shaft extends outwardly of the pump body to form a coupling end to be coupled with the output shaft so as to enable the motor to drive the impeller to rotate.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: June 19, 2001
    Inventor: Chien-Chih Hsu
  • Patent number: 6234207
    Abstract: A device for changing the flow of an operating medium in an air conditioning system, comprises a casing including a first port connected to an outlet or inlet port of a compressor, a second port connected to an indoor heat exchanger, a third port connected to an outdoor heat exchanger, and a fourth port connected to the outlet or inlet port of the compressor, a drive mechanism arranged in the casing, and a valve body rotatably supported by the drive mechanism and including a first flow passageway extending between a first selectively positionable opening and a second selectively positionable opening and a second flow passageway extending between the first selectively positionable opening and a third selectively positionable opening. The valve body is reversibly rotated to a predetermined angle to allow the operating medium to selectively flow through the first flow passageway or through the second flow passageway.
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: May 22, 2001
    Assignee: Fuji Injector Corporation
    Inventor: Isamu Toyama
  • Patent number: 6230514
    Abstract: An energy transfer system is provided for a household or commercial refrigeration appliance. The energy transfer system includes a fluid passage disposed in the housing of the appliance for enabling the transfer of a fluid into, through, and out of the housing. The fluid is circulated through a heat exchanger which can be disposed outside of a home or commercial building or underground so that the fluid is cooled by the outside air or by the ground. The cooling fluid is also utilized to cool the compressor of an air conditioning unit. A heat exchanger is also utilized for transferring heat from the cooling fluid to an interior of a building.
    Type: Grant
    Filed: July 19, 1999
    Date of Patent: May 15, 2001
    Inventors: Edward R. Schulak, J. Benjamin Horvay, Joseph A. Pietsch
  • Patent number: 6230508
    Abstract: An automotive air conditioning system includes a primary, refrigerant loop (10,12,14) and a low pressure secondary loop (22, 24, 26, 28) across which heat is exchanged by a chiller (16). A liquid coolant reservoir (24, 42) in the secondary loop has a provision to allow the majority of its volume to be incorporated incrementally into the system at start up after the reservoir (24, 42) has sat long enough to become heated, so as not to delay the attainment of a suitable passenger comfort level.
    Type: Grant
    Filed: October 3, 2000
    Date of Patent: May 15, 2001
    Assignee: Delphi Technologies, Inc.
    Inventors: James Allen Baker, Mahmoud Ghodbane
  • Patent number: 6223558
    Abstract: This invention relates to a method of refrigeration purification and power generation of industrial gas and apparatus therefor. The apparatus is comprised of two parts, the front part of which is constituted by a multi-stage phase changeable refrigeration cycle of pure-phase changeable non-heat refrigeration technique for effectively obtaining cool quantity; the rear part of which makes use of the feature that the toxic and harmful gas in the waste gas has the higher boiling point than clean gas, the waste gas is firstly condensed and liquefied to be separated; the liquefied clean gas and the liquid refrigeration medium of the last stage absorb heat from waste gas in order to be evaporated into steam to drive expansion turbine groups respectively to work, while collecting a mechanical power in a negative compression region and adding a mechanical energy loss of initial cooled waste gas during compression.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: May 1, 2001
    Inventor: Yuanming Yi
  • Patent number: 6220048
    Abstract: A method and apparatus for controlling the temperature of a freeze drying chamber shelves and chamber in a refrigeration system having a condenser operatively associated therewith using the circulation of a cryogen through the condenser and of a cryogenically cooled heat transfer fluid through the chamber shelves for controlling the temperature therein, and also where the temperature of the cryogenically cooled heat transfer fluid having been regulated by an exchange of heat with the cryogen.
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: April 24, 2001
    Assignee: Praxair Technology, Inc.
    Inventors: Donald Stuart Finan, Sr., Alan Tat Yan Cheng
  • Patent number: 6220046
    Abstract: Equipment for working a hard material includes a housing (2), a driving motor (1), located within the housing, a cooling duct (3) within the housing surrounding the driving motor, a tool (5) for working the hard material connected to the driving motor and at least one electronic component (19) mounted on a cooling device (8). A coolant supply source (6) supplies coolant under pressure to the cooling device (8) and then to an upstream end of the cooling duct (3). A first coolant discharge pipeline (13) is connected to a downstream end of the cooling duct (3). The first coolant discharge pipeline (13) flows the coolant into a reversible distributor (10).
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: April 24, 2001
    Assignee: Hilti Aktiengesellschaft
    Inventors: Ferdinand Kristen, Hans-Werner Bongers-Ambrosius, Josef Schitti, Erwin Reisinger
  • Patent number: 6216486
    Abstract: The present invention provides a planned array tubes and circuits in a cooling coil for a thermal storage unit to maintain at least some of the vertical aisles between adjacent circuits or sets of circuits to provide communication through the coil to present more ice-contact surface area to the heat transfer fluid for maintenance of a fluid temperature at about the desired output temperature and to provide a circuit having a means to monitor and control termination of the ice build in a thermal storage unit.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: April 17, 2001
    Assignee: Baltimore Aircoil Company, Inc.
    Inventors: David A. Aaron, Frank T. Morrison
  • Patent number: 6216469
    Abstract: Devices and methods for rapid chilling of products, articles and devices, including both perishable and non-perishable goods are provided. These devices and methods store thermal energy by ice and/or slush formation and employ the heat of the product to be chilled to help harvest the ice.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: April 17, 2001
    Inventor: Bruce Miller
  • Patent number: 6216475
    Abstract: A cooling device for cooling an object to be processed to a target temperature comprises a plurality of contact members mounted on a placing table, for supporting the object such that the object opposes a top surface of the placing table with an interval, temperature sensors for outputting temperature information of the object supported by the contact members, a first cooling unit for cooling the placing table to a temperature lower than the target temperature to cool the object, a second cooling unit for heating the object cooled by the first cooling unit to a temperature almost equal to the target temperature, and a contrast circuit for performing a switching operation between cooling by the first cooling unit and heating by the second cooling unit on the basis of the temperature information from the temperature sensors.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: April 17, 2001
    Assignee: Tokyo Electron Limited
    Inventors: Tetsuya Sada, Osamu Hirose, Kiyohisa Tateyama
  • Patent number: 6212895
    Abstract: A cooling system has an ethylene glycol coolant transport loop which is cooled by the existing plant ammonia based refrigeration system. The coolant loop employs ethylene glycol to transport heat between an ammonia evaporator and the hydraulic systems of individual machines. The ethylene glycol coolant is supplied from a supply header which is connected to a return side header by individual cooling loops which pass through the heat exchangers mounted on individual machines for cooling the machine hydraulic fluid. The supply header is also connected to the return header by a regulating valve set to maintain a constant pressure drop between the supply header and the return header. Each machine coolant fluid flow can be adjusted by a regulating valve which is adjusted by reference to a flow meter on a particular coolant loop.
    Type: Grant
    Filed: November 19, 1999
    Date of Patent: April 10, 2001
    Assignee: Emmpak Foods Inc.
    Inventor: Curt D Richardson
  • Patent number: 6205795
    Abstract: A secondary loop refrigeration system includes plural refrigeration zones serially connected in a secondary cooling loop using a liquid refrigerant in increasing order of operating temperatures, the secondary cooling loop being in heat exchange relationship with a primary cooling loop using direct expansion refrigerants. The primary cooling loop may be selectively isolated allowing the latent heat of the units in the zones to increase the circulating temperature of the secondary refrigerant sufficient to defrost the cooling coils.
    Type: Grant
    Filed: May 21, 1999
    Date of Patent: March 27, 2001
    Inventors: Thomas J. Backman, James Roomburg
  • Patent number: 6185951
    Abstract: Case includes at least one compartment for product storage, at least one access opening providing entrance to said compartment and at least one shelf within the compartment for holding product. Refrigeration is provided operatively associated with the compartment for maintaining a selected temperature therein including at least one of (1) transparent cooling coils above the shelf with a cooling medium flowing therethrough, and (2) cooling within the shelf with a cooling medium therein, whereby a cooled, temperature controlled environment is provided for the products.
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: February 13, 2001
    Assignee: In-Store Products Ltd.
    Inventors: Mark Lane, Michael B. Davidson
  • Patent number: 6185941
    Abstract: With an object to provide a thermoelectric converter excellent in performance, this invention provides a thermoelectric converter provided with a first thermal converter 1, a blocked second thermal conductor 2 connected to a predetermined position of the first conductor 1, a frame 6 made of a synthetic resin and surrounding the second conductor 2, a thermally-conductive substrate 5 with the frame 6 fixed at a basal end portion 8 thereof on the substrate and also with a group of thermoelectric elements 4 supported inside the substrate, and a heat-insulating layer 31 interposed between the first thermal conductor 1 and the thermally-conductive substrate 5 such that the frame 6 is surrounded at an outer periphery thereof by the heat-insulating layer. The second thermal conductor 2 and the thermally-conductive substrate 5 are opposing each other and are maintained in close contact with each other via the group of thermoelectric elements 4.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: February 13, 2001
    Assignee: ECO 21, Inc.
    Inventors: Hideo Watanabe, Fumikazu Kiya
  • Patent number: 6178770
    Abstract: An increased capacity thermal storage apparatus for forming frozen storage liquid during a storage cycle is provided. The apparatus comprises a container for holding a pool of storage liquid. A coil assembly having a plurality of tubes is immersed in the pool storage liquid. The tubes are adapted to transport a refrigerant therethrough to create a tubular envelope of frozen storage liquid around each tube during the storage cycle. Each tube has a non-circular cross-section with a horizontal dimension and a vertical dimension. The vertical dimension is greater than or equal to the horizontal dimension. The tubes are oriented generally horizontally and are arranged in a plurality of spaced apart, generally vertical rows. Neighboring tubes in adjacent vertical rows are horizontally spaced apart sufficiently such that unfrozen, generally vertical passageways remain between the envelopes of frozen storage liquid.
    Type: Grant
    Filed: October 22, 1998
    Date of Patent: January 30, 2001
    Assignee: Evapco International, Inc.
    Inventors: Wilson E. Bradley, Jr., Richard P. Merrill, George R. Shriver
  • Patent number: 6158236
    Abstract: A refrigeration capacity accumulator including a set of parallel transversely spaced tubes arranged in layers. Each tube is closed at both ends and contains a static liquid that solidifies into ice when the tube is exposed to a below-zero temperature. Each tube compensates for the expansion of the static liquid during solidification. Specifically, the tube is arranged in a horizontal position, an expansion space is provided in the gap between the static liquid and the cylindrical wall of the tube, and two internally hemispherical end walls are provided. According to the method, the accumulator is operated and a zigzagging flow of a dynamic fluid is fed through the spaces between and around the tubes. The accumulator may be connected to a refrigeration unit and/or an operating apparatus.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: December 12, 2000
    Inventor: Thai Nguyen Viet
  • Patent number: 6158499
    Abstract: Methods and apparatus for extracting stored thermal energy using a combined internal and external melt cycle are disclosed. The present invention relates, in one aspect, to a heat exchange system which uses both an internal melt cycle and an external melt cycle to extract stored thermal energy. The heat exchange system includes a thermal energy storage medium and a heat exchanger which is in communication with the thermal energy storage medium. The heat exchanger is arranged to hold a heat exchange liquid and to facilitate the indirect transfer of heat between the heat exchange liquid and the thermal energy storage medium. The heat exchange system further includes a fluid supply which provides a fluid which directly contacts the thermal energy storage medium to transfer heat between the fluid and the thermal energy storage medium.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: December 12, 2000
    Assignee: Fafco, Inc.
    Inventors: Richard O. Rhodes, Hollend F. Bishop
  • Patent number: 6148909
    Abstract: A temperature control system which performs control of an object whose temperature is to be controlled as accurately as possible. The system comprises: a chiller located in a fluid circulating and supplying system, for cooling a thermal fluid returning from a vacuum chamber, a first flow control valve located in the fluid circulating and supplying system in a position between the chiller and the vacuum chamber, a bypass passage for splitting and supplying thermal fluid returning from the vacuum chamber to a position between the first flow control valve and the vacuum chamber, before it reaches the chiller, a second flow control valve located in the bypass passage, and a halogen lamp heater located in the fluid circulating and supplying system in a position between a confluence point of the bypass passage and the vacuum chamber, for adjusting the temperature of the thermal fluid passing therethrough to a set temperature.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: November 21, 2000
    Assignee: Komatsu Ltd.
    Inventors: Masashi Osanai, Shunsuke Miyamoto, Tomohisa Sato, Hiroaki Takechi, Tsutomu Hatanaka, Norio Takahashi, Toshiyuki Kamei, Takumi Sugihara, Isao Shibata, Hironori Akiba
  • Patent number: 6148634
    Abstract: A multistage refrigeration system is disclosed, and particularly a system with a thermal storage reservoir disposed in a secondary refrigeration loop of the system. The reservoir stores thermal reservoir material in heat exchange relation with the refrigerant in that secondary refrigeration loop. A primary refrigeration loop transfers heat from the secondary refrigeration loop to ambient. A third refrigeration loop absorbs heat from a product to be cooled and transfers that heat to the secondary refrigeration loop. The thermal reservoir material may undergo a liquid/solid phase change, and preferably has a freezing point at about 20.degree. F. (-7.degree. C.). The multistage refrigeration system of the present invention is particularly adapted for use in stadium or arena settings, where rapid cooling of mass quantities of canned or bottled beverages for immediate consumption is desired.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: November 21, 2000
    Assignee: 3M Innovative Properties Company
    Inventor: Gregory J. Sherwood
  • Patent number: 6138472
    Abstract: An ice-storing tank for an air conditioner with an ice-storing tank includes a temperature-preserving tank and a spiral pipe set positioned in the tank. The spiral pipe set consists of a bottom base, a plurality of upright long posts spaced around an outer circumferential edge of the bottom base, and a plurality of independent spiral pipe units orderly placed on the bottom base. Each spiral pipe unit consists of supporting rods radially arranged and a spiral pipe supported on the supporting rods. The outer end of each supporting rod is fixed with the upright long post, and two ends of each pipe have a joint. A vertical inlet pipe and a vertical outlet pipe are provided to stand just outside the bottom base, having a plurality of connecting mouths to connect to the joints of each pipe and their upper ends extending out of the temperature-preserving tank to function as an inlet and an outlet for freezing liquid.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: October 31, 2000
    Assignee: Chi-Li Industry Co., Ltd.
    Inventor: Chung-Ping Huang
  • Patent number: 6125635
    Abstract: A temperature adjusting device has an air-tight container. A thermoelectric element is disposed in the air-tight container and has first and second opposite surfaces each capable of radiating and absorbing heat through a Peltier effect. A first heat exchanger is disposed in the air-tight container for performing heat exchange between a thermally conductive first medium and the first surface of the thermoelectric element. A tank is disposed in the air-tight container and is connected to an inlet side of the first heat exchanger for storing the first medium. A second heat exchanger is disposed in the air-tight container for performing heat exchange between a thermally conductive second medium and the second surface of the thermoelectric element. A pump circulates the first medium through the first heat exchanger. A temperature sensor detects a temperature of the first medium circulated by the pump.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: October 3, 2000
    Assignee: Seiko Seiki Kabushiki Kaisha
    Inventors: Shinichi Nomura, Shinji Koyano, Yuichi Kinoshita
  • Patent number: 6119478
    Abstract: All components of an existing R22 refrigeration apparatus, exclusive of an indoor unit (A) and an existing line (21b), are removed. A refrigerant--refrigerant heat exchanger (2) and a refrigerant pump (23) are connected to the existing line (21b) to form a secondary refrigerant circuit (20). The R--R heat exchanger (2) is connected to a primary refrigerant circuit (10). Both the circuits (10) and (20) are charged with an R407C refrigerant. It is arranged such that the design pressure of the primary line (11) exceeds that of a secondary line (21) which was designed for a R22 refrigerant.
    Type: Grant
    Filed: August 18, 1998
    Date of Patent: September 19, 2000
    Assignee: Daikin Industries, Ltd.
    Inventors: Shinri Sada, Osamu Tanaka
  • Patent number: 6112544
    Abstract: In a generator cooling system (10) for a generator used for current generation in a power station, said generator having a generator cooler (11) which is arranged, together with further coolers (12, . . . , 17), in a closed intermediate cooling circuit (18) which transfers heat to a main cooling water system via at least one intermediate cooler (19, 20), increased capability is achieved by providing, in the intermediate cooling circuit (18), means (32) which improve the transmission of heat from the generator cooler (11) into the main cooling water system.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: September 5, 2000
    Assignee: ABB Alstom Power (Switzerland) Ltd
    Inventors: Richard Blatter, Philipp Elkuch, Kurt Fischer, Erhard Liebig
  • Patent number: 6112545
    Abstract: Multiple coil fittings are connected in series to a closed loop single pipe circuit. Each coil fitting provides a paralleled chilled water flow to a fan coil servicing an enclosure. The coil fitting has a housing enclosing a first tubing for directing chilled water to the fan coil and a second tubing for directing return water to the pipe circuit. A baffle is mounted radially on the end of the second tubing proximal to the pipe circuit causing a portion of the chilled water in the pipe circuit to flow into the first pipe with the return water entering the pipe circuit below the baffle so there is no mixing of return water with the chilled water entering the first tubing regardless of the direction of flow in the pipe circuit. A humidistat mounted near the load coil farthest from the chiller sends a relative humidity signal to a diverter valve that changes the direction of chilled water flow in the pipe circuit.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: September 5, 2000
    Assignee: Taco, Inc.
    Inventor: Walter C. Stethem
  • Patent number: 6101837
    Abstract: An ice thermal storage type air-conditioner and an ice thermal storage tank, in which unused portions in the ice thermal storage tank is reduced to enhance an ice filling rate in the ice thermal storage tank or to prevent excessive icing from damaging a heat transfer unit.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: August 15, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Masao Imanari, Toshihiko Fukushima, Toshio Hatada, Katsumi Matsubara, Naoto Katsumata
  • Patent number: 6094933
    Abstract: An ice storage element (28) with at least one profiled body (29B) surrounded by an exterior wall (37) for forming at least one storage space (34) for an ice storage medium which can be brought into heat-exchange connection with a refrigerant. For more economical configuration of this ice storage element and improved heat transfer, at least one refrigerant pipe (30) is integrated into the profiled body (29B) and the profiled body is formed of a metal. The profiled body (29B) is preferably made as an extruded aluminum section with integrated inside ribs (33) and/or external ribs (31, 32).
    Type: Grant
    Filed: September 9, 1998
    Date of Patent: August 1, 2000
    Assignee: Webasto Thermosysteme GmbH
    Inventors: Wolfgang Forsthuber, Andreas Krompass, Gunther Hammerschmid
  • Patent number: 6092381
    Abstract: A refrigerator mounted in a motor vehicle and connected to a refrigerant circulating system of the motor vehicle, having a liquid refrigerating medium container at a bottom side thereof the liquid refrigerating medium container holding a liquid refrigerating medium and a coil in the liquid refrigerating medium, the coil being connected in series to the circulating loop of the refrigerant circulating system of the motor vehicle through which a refrigerant is circulated.
    Type: Grant
    Filed: October 27, 1998
    Date of Patent: July 25, 2000
    Assignee: Hsinlon A/C Systems Limited
    Inventors: Chia-Long Hsiao, Wan Fu Kuo, Shueh-Cheng Lu, King-Chun Kao
  • Patent number: 6085536
    Abstract: An environmentally adaptable exterior heat exchange unit with a pot like base and a vertical component extending from the base. An artificial plant is incorporated into the structure to blend the unit with its environmental surroundings. The unit could resemble a fir tree, a shrub, a bush, a tree or the like. A compressor and condensing coil are located within the base which will reduce noise levels and increase efficiency of heat exchange. A set of vertically extending heat exchange coils circulate a second coolant and extend upward from the base and can be moved relative to the base without disturbing coolant flow or the components housed within the base. The unit can be operated with the lid off and mainatin refrigerant and coolant circulation. The refrigerant coil is run within the coolant coil in a tube-in-tube arrangement within the base to enhance heat exchange. The coolant tubes then carry the heat outside the base.
    Type: Grant
    Filed: August 12, 1999
    Date of Patent: July 11, 2000
    Inventor: Fred Evans, Sr.
  • Patent number: 6085541
    Abstract: A multiplicity of water passage pipes (4) are received in a horizontal, cylindrical-shaped drum (3), which is provided at an upper portion thereof with a discharge port (3a) and an inflow port (3b) for a refrigerant. Fixed to both ends of the drum (3) are a water introduction cylinder (6) and a discharge cylinder (7), which is bent downward to be substantially L-shaped. A heat exchanger (1) is secured such that en end thereof on a side of the discharge cylinder (7) is disposed above a cold water tank (2). An interior of the cold water tank (2) is divided into a first tank (2a) and a second tank (2b) by a partition (8), over which water can flow. A piping for supplying a cold water to a facility for utilization of the cold water is connected to a bottom or a lower portion of the first tank (2a), on which the cold water from the heat exchanger (1) falls. A path for water recovery from the facility for utilization of the cold water is connected to the second tank (2b) through a return piping (11).
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: July 11, 2000
    Assignee: K E Corporation Co., Ltd.
    Inventor: Tsuneo Harukawa
  • Patent number: 6067814
    Abstract: The invention concerns a method for cooling containers, wherein cold is generated in a primary circuit containing a cooling medium. Cold is supplied via a heat exchanger to a cold carrier in a secondary circuit. The secondary circuit's cold carrier flows into a container through pipes with releasable couplings, transferring cold to the container through a heat exchanger. Cold is stored in one or more cold stores in the secondary circuit, in or outside the container, for subsequent emission in the event of an interruption in the cold supply. The invention also concerns a cooling system for implementation of the method.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: May 30, 2000
    Assignee: Kvaerner ASA
    Inventor: K.ang.re Bjorn Imeland
  • Patent number: 6062035
    Abstract: By using a heat storage circuit or a refrigerating cycle as a heat source, cold heat or hot heat is applied from the heat source to secondary refrigerant in a main refrigerant circuit (20). By a heating or a cooling action of a small-sized refrigerating machine (40), a moving force is given to refrigerant in the main refrigerant circuit (20). Thereby, the secondary refrigerant in the main refrigerant circuit (20) circulates between a heat source-side heat exchanger (21) and an indoor heat exchanger (22) to heat or cool a room.
    Type: Grant
    Filed: April 22, 1998
    Date of Patent: May 16, 2000
    Assignee: Daikin Industries, Ltd.
    Inventor: Takeo Ueno
  • Patent number: 6059016
    Abstract: Described is a thermal energy storage and delivery system for delivering thermal energy to both a passenger compartment of a vehicle and a component, such as a battery, located externally of the passenger compartment. The system capitalizes on excess capacity stored in a thermal energy storage apparatus, to heat the external component in addition to the passenger compartment.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: May 9, 2000
    Assignee: Store Heat and Produce Energy, Inc.
    Inventors: Alexander P. Rafalovich, Gilbert P. Keller, T. Craig Schmidter
  • Patent number: 6053006
    Abstract: The ice storage reservoir (1) comprises a container (2) filled with water (3) and containing first heat exchangers (4) through which a cooled medium flows when the ice storage reservoir is charged. The water in the container thus turns to ice. For discharging the ice storage reservoir, a medium can be conveyed through the first heat exchangers which is passed through a second heat exchanger (11). Coolable in the second heat exchanger is a working medium which circulates in a working-medium circuit (14) and can be supplied after cooling to a cooling plant. At the same time, during the discharge operation water is withdrawn from the container via drainage facilities (22), conveyed over a third heat exchanger (18), and returned to the container through supply facilities (27). The working medium precooled by the second heat exchanger is led through the third heat exchanger in which further heat is withdrawn from the working medium.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: April 25, 2000
    Assignee: Delroc SA
    Inventor: Gunnar Kimborn
  • Patent number: 6050083
    Abstract: A fueled refrigeration and generating system comprised of a Brayton cycle gas turbine producing shaft power preferably driving a refrigeration compressor. Heat is recovered from the high-temperature exhaust of the turbine by a heat exchanger using a high temperature-resistant heat transfer medium. The heat-transfer medium is used to produce high-temperature water and steam. A steam turbine is operated by the steam and produces shaft power for driving an electrical generator. Each of the turbines individually operates refrigeration and/or chiller compressors, or by gearing, drive a common power shaft. The system produces, selectively, hot water, steam, chilled water, ice and electrical energy.
    Type: Grant
    Filed: April 22, 1996
    Date of Patent: April 18, 2000
    Inventor: Milton Meckler
  • Patent number: 6044903
    Abstract: A drop-in, portable, water conditioning assembly for use in a tank containing water is disclosed. The water conditioning assembly includes a refrigeration unit having a compressor assembly, a condenser and at least one depending evaporator coil for insertion into the tank water. A heating element also ends downwardly from a base and a temperature controller is operatively connected to both the refrigeration unit and the heating element for controlling both the heating and cooling of the water. A motor drives a depending shaft which mounts a blade. The blade both aerates and circulates water within the tank.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: April 4, 2000
    Assignee: Frigid Units, Inc.
    Inventors: Dawn M. Heilman, Mark S. Heilman