With Leakage Collector Patents (Class 165/70)
  • Patent number: 10495542
    Abstract: A monitoring system for a multiple-walled fluid system with a first walled region including a flowing or stagnant fluid and at least one second walled region at least partially surrounding the first walled region. The first walled region and the at least one second walled region forming the multiple-walled fluid system, the first walled region being in fluid communication with the at least one second walled region, the at least one second walled region also being in fluid communication with the ambient environment. A data processing device for monitoring at least one pressure difference between a pressure in at least one a control volume and at least one second pressure in the at least one second walled region, a first control volume in fluid connection with the first walled region and the ambient environment. The at least one pressure difference indicating the status of the multiple-walled fluid system.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: December 3, 2019
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventor: Paul Julian Wells
  • Patent number: 10286502
    Abstract: A method and arrangement for repairing a leaking point in a plate pack of a plate heat exchanger (1), in which a space between adjacent plate pairs of the plate pack (4), with which the leaking point is in connection, is closed by arranging a separate strip (9) or sealing tape (10) into the space between the plate pairs on the whole length of the outer perimeter of the plate pack.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: May 14, 2019
    Assignee: VAHTERUS OY
    Inventor: Timo Henriksson
  • Patent number: 9927186
    Abstract: To provide a plate heat exchanger free from degradation of gaskets which form a flow path through which a high-temperature fluid flows. In the plate heat exchanger, a plurality of heat transfer plates 20 each provided with passage holes 21, 22, 23, and 24 in corners are stacked; a flow-path forming gasket 31 is interposed between peripheries of each adjacent ones of the heat transfer plates 20; communicating-path forming gaskets 32 are installed, surrounding the passage holes 21 in each adjacent ones of the heat transfer plates 20 alternately; and thereby a first flow path 1 adapted to pass a high-temperature fluid H, a second flow path adapted to pass a low-temperature fluid C, and communicating paths 3 adapted to cause the high-temperature fluid H and the low-temperature fluid C, respectively, to flow in and out of the first flow path 1 and the second flow path 2 are formed alternately on opposite sides of each of the heat transfer plates 20.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: March 27, 2018
    Assignees: Hisaka Works, Ltd., Hitachi-GE Nuclear Energy, Ltd.
    Inventors: Isamu Hiwatashi, Mana Iwaki, Kenji Kusunoki, Seiichi Matsumura, Kiyoshi Ishihama, Funabiki Takahisa
  • Patent number: 9596785
    Abstract: A heat exchanger useful for mounting to an electronic component housing or other system requiring heat exchange. The heat exchanger has a manifold having a cross-sectional configured for providing an unequal coolant flow to an array of cooling channels fed by the manifold, thereby providing for preferential amounts of heat exchange over a given heat exchange surface of the heat exchanger. A safety channel may surround the channels carrying the coolant to prevent potential leakage outside of the heat exchanger.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: March 14, 2017
    Assignee: Pratt & Whitney Canada Corp.
    Inventor: Joseph H. Brand
  • Patent number: 9371578
    Abstract: Provided is a tantalum coil for sputtering disposed between a substrate and a sputtering target, wherein the tantalum coil has irregularities so that the surface roughness Rz of the tantalum coil is 150 ?m or more and the number of threads is 15 to 30 TPI (Threads per inch) in a transverse direction and 10 to 30 TPI in a vertical direction. An object of the present invention is to take measures to prevent the sputtered grains accumulated on the surface of a tantalum coil from flaking so as to prevent the generation of particles and arcing that is caused by the flaking of the sputtered grains accumulated on the surface of the coil disposed between a substrate and a sputtering target, and the adhesion of the scattered flakes onto the substrate surface; and thereby to provide a technology of improving the quality and productivity of electronic components and stably providing semiconductor elements and devices.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: June 21, 2016
    Assignee: JX Nippon Mining & Metals Corporation
    Inventor: Shiro Tsukamoto
  • Patent number: 9284841
    Abstract: A disposable heat exchanger system including a sterile disposable bag assembly and sets of modular stainless steel heating/cooling plate assemblies is disclosed. The sterile disposable bags are manifolded together via disposable tubing and are installed and filled in place with cell culture or protein containing process fluid between the stainless steel heating/cooling plates. The stainless steel heating/cooling plates are manifolded together in a modular fashion with stainless steel tubing. Both the sterile disposable bag assembly and the heating/cooling plates are configured to have a serpentine flow pattern. The process fluid within the sterile disposable bag assembly and heating/cooling fluid within the modular stainless steel heating/cooling plates flow in opposite directions in order to provide counter-current flow for efficient heating or cooling.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: March 15, 2016
    Inventor: Julie C. Vickers
  • Patent number: 9163882
    Abstract: A double-wall heat exchanger includes a plurality of heat exchange plate pairs. Each heat exchange plate pair forms a double-wall structure including two heat exchange plates that are at least partially separated by a leak space. At least one weep hole is disposed through the plurality of heat exchange plate pairs and intersects the leak spaces of the plurality of plate pairs to channel leaking fluid from the leak spaces to a location outside of the heat exchanger. The at least one weep hole is positioned on a surface of the heat exchanger at a location that is spaced from a side boundary of the heat exchanger thereby enabling an operator of the heat exchanger to observe a leakage on the surface of the heat exchanger.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: October 20, 2015
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventor: Gary A. Crawford
  • Patent number: 9161480
    Abstract: A reliable, leak tolerant liquid cooling system with a backup air-cooling system for computers is provided. The system may use a vacuum pump and a liquid pump in combination to provide negative fluid pressure so that liquid does not leak out of the system near electrical components. The system distributes flow and pressure with a series of pressure regulating valves so that an array of computers can be serviced by a single cooling system. The system provides both air and liquid cooling so that if the liquid cooling system does not provide adequate cooling, the air cooling system will be automatically activated. A connector system is provided to automatically evacuate the liquid from the heat exchangers before they are disconnected.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: October 13, 2015
    Assignee: Chilldyne, Inc.
    Inventor: Steve Harrington
  • Patent number: 9109614
    Abstract: Embodiments of the present invention use compressed air to store and deliver electrical, mechanical, and/or thermal power with high round-trip efficiency. Various embodiments may be scalable for use in a variety of environments—from wind farms to power plants to motor vehicles. An energy storage system according to the present invention can operate as a stand-alone storage system that connects electrically to the grid, it can be tightly integrated with a wind turbine, and/or it can be co-located with a thermal power generation facility and operate with even higher efficiency by scavenging low-grade waste heat.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: August 18, 2015
    Assignee: LightSail Energy, Inc.
    Inventors: Danielle A. Fong, Stephen E. Crane, Edwin P. Berlin, Jr., AmirHossein Pourmousa Abkenar
  • Patent number: 9033026
    Abstract: A plate heat exchanger (10) of the double plate type having a plurality of stacked plate elements, each comprising a first plate (1) and a second plate (9). At least the first plate (1) is provided with a surface pattern with a plurality of dimples (5) defining a first distance to a plate plane (8), and a plurality of canal parts (6) defining a second, smaller, distance to the plate plane (8). The first plate (1) and the second plate (9) are joined in such a manner that the protruding areas (5, 6) in combination form flow paths (11) being fluidly connected to rim portions (3) of the plates (1, 9). The heat exchanger (10) provides efficient leakage detection via the flow paths (11) while ensuring a good thermal contact between heat exchanging fluids through the plates (1, 9) via flat portions (7) between the protruding parts (5, 6).
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: May 19, 2015
    Assignees: Danfoss A/S, EP Technology AB
    Inventor: Lars Persson
  • Patent number: 8985192
    Abstract: A plate fin heat exchanger of the present invention includes a heat exchange part including a heat exchange part main body including layers of plural flow passages, and heat transfer members each of which is disposed within each flow passage of the heat exchange part main body to transfer the heat of fluid flowing in each of the flow passages to each partition walls opposed across the flow passage; and sensing parts connected to both the outsides of the heat exchange part respectively. Each of the sensing parts includes plural sealed spaces, and a sensor wall disposed to separate the outermost sealed space from the sealed space on the inner side thereof. The plate fin heat exchanger further includes a detection means for detecting damage of the sensor wall of the sensing part. According to such a structure, external leak of the fluid performing the heat exchange can be prevented while suppressing deterioration of performance or increase in size or weight.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: March 24, 2015
    Assignee: Kobe Steel, Ltd.
    Inventors: Kenichiro Mitsuhashi, Susumu Terada, Koji Noishiki
  • Patent number: 8944154
    Abstract: A heat exchanger has partitioning means for dividing a header tank such that a first space and a second space of a tank main body are arranged in a longitudinal direction of the header tank. An annular outer peripheral seal surface is provided around a tube bonding surface of a core plate of the header tank over an entire perimeter thereof and is provided with a gasket. A partitioning seal surface is provided to the tube bonding surface at a position corresponding to the partitioning means, and is provided with the gasket. The gasket seals between the core plate and the partitioning means. The partitioning seal surface is positioned on a plane identical with a plane of the outer peripheral seal surface. A part of the gasket, which is held by the core plate and the tank main body therebetween, has a uniform thickness.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: February 3, 2015
    Assignee: Denso Corporation
    Inventors: Eizou Takahashi, Mitsuru Kimata, Akira Yamanaka, Masaya Nakamura, Yasuhiro Mizuno
  • Patent number: 8925622
    Abstract: A cooling plate includes a casing being internally divided into an upper chamber and a lower chamber; an air inlet deposited on at least one lateral wall of the casing enclosing the upper chamber; a plurality of through holes being formed on the partition board and such arranged that the through holes closer to the air inlet are smaller in diameter and the through holes farther from the air inlet are larger in diameter, wherein the upper chamber and the lower chamber are communicated to each other via the through holes; and a plurality of air outlets provided on a lower board below the lower chamber for communicating the lower chamber to an exterior of the casing, wherein the air outlets are identical in diameter and arranged into a matrix-like pattern.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: January 6, 2015
    Assignee: ADPV Technology Limited
    Inventors: Shiezen Steven Huang, Jhao-Lung Zeng
  • Patent number: 8925621
    Abstract: In one embodiment, a system includes a telecom utility cabinet and an air-based geothermal cooling system for the telecom utility cabinet. The system also includes a leak detector for the air-based geothermal cooling system. In another embodiment, a method includes detecting a leak in an air-based geothermal cooling system. The method also includes activating a liquid pump for the air-based geothermal cooling system in response to the leak detection.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: January 6, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventors: Pedro Fernandez, Shanjiu Chi, Amit Kulkarni, Liqian Zhai, Kelly C. Johnson, Yong Lu, Mahmoud Elkenaney
  • Publication number: 20140138050
    Abstract: A dry heat exchanger coil having a plurality of straight inner tubes connected by a plurality of return bends. The return bends are located outside of the air flow passing over the coil. The inner tubes are situated within a corresponding outer or “safety” tube. The outer tubes do not contain and are not connected to return bends, but the ends of the outer tubes are located outside of the air flow path. Leaks in the inner tubes are captured by the outer tubes and the leaking fluid will flow in the space between the inner and outer tubes, flow out the end of the outer tube, to be captured in a drip pan at the bottom of the coil housing. Leaks occurring in the return bends will also be captured in drip pan.
    Type: Application
    Filed: April 25, 2013
    Publication date: May 22, 2014
    Applicant: Evapco, Inc.
    Inventor: Evapco, Inc.
  • Publication number: 20140083649
    Abstract: Body air outlets of an air-conditioning-apparatus indoor unit each has a substantially trapezoidal shape in plan view and are each defined by a body-air-outlet outer side wall, a body-air-outlet inner side wall, and a pair of body-air-outlet end walls. The body-air-outlet outer side wall is provided with a deflection guide at each of long-side ends thereof. The body-air-outlet end walls are each provided with a sloping guide. The deflection guide has a deflection-guide upper surface that gradually projects toward the body-air-outlet inner side wall in a direction toward a body open face (toward a downstream side) and in a direction toward the central part of the body air outlet. The sloping guide has a sloping-guide upper surface that gradually projects toward the central part of the body air outlet as the sloping guide extends closer to the body open face (toward the downstream side).
    Type: Application
    Filed: April 26, 2012
    Publication date: March 27, 2014
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takashi Ikeda, Masahiko Takagi, Makoto Kurihara
  • Publication number: 20140027093
    Abstract: An air conditioning apparatus for use in information/data centers is provided, including a housing assembly, a wind-blowing device, a heat exchanger, and a separating mechanism. The housing assembly has a first housing and a second housing. The wind-blowing device is disposed in the housing assembly for guiding airflow into the housing assembly for heat exchange. The separating mechanism is used for dismembering the housing assembly in order to move the first housing or the second housing, and for incorporating the housing assembly to enable the heat exchanger to exchange heat.
    Type: Application
    Filed: December 20, 2012
    Publication date: January 30, 2014
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Hsi-Sheng WU, Hsu-Cheng CHIANG
  • Publication number: 20130340972
    Abstract: An object of the invention is to provide an indoor unit of an air-conditioning apparatus, which facilitates a change of the position from which a pipe is taken out. A heat exchanger unit is inverted back to front in a state in which the relationship between the bottom surface and the upper surface of the heat exchanger unit is maintained, so that a pair of opening portions can be selectively connected to an air outlet of an air-sending unit. The air-sending unit is inverted upside down so that an air outlet can be connected to a selected opening portion from among the pair of opening portions of the heat exchanger unit.
    Type: Application
    Filed: December 11, 2012
    Publication date: December 26, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Kazuhiro FUKUDA
  • Publication number: 20130277008
    Abstract: In a liquid cooling system having a structure in which a joint is attached or detached while inserting or removing a card board, when a liquid is leaked from a connection portion of the joint, the leaked liquid confined within a housing is prevented from spilling out and scattering to surrounding electronic components when the card board is disconnected. The liquid cooling system includes male and female joints, and housings that fix those joints to each other. A water absorptive material is disposed on an inner wall of the housing of the male joint, and a seal member is disposed on an inner wall of the housing of the female joint. The liquid cooling system includes a liquid leakage detection function. When the liquid cooling system detects the liquid leakage, the liquid cooling system stops the operation of a pump, and prevents the liquid from being further leaked.
    Type: Application
    Filed: February 27, 2013
    Publication date: October 24, 2013
    Applicant: HITACHI, LTD.
    Inventors: Mitsuo ISHIKURA, Nobuhiro TAMAYAMA
  • Publication number: 20130105114
    Abstract: An air conditioner having a structure capable of variably installing an indoor unit of the air conditioner in a vertical or horizontal direction, the air conditioner including a body configured to be variably installed in a vertical or a horizontal direction, a heat exchanging device installed inside the body, and a drain assembly provided to collect condensation water generated from the heat exchanging device, wherein the drain assembly includes a first drain tray provided at a lower portion of a traverse (length) side of the heat exchanging device to collect the condensation water falling along the surface of the heat exchanging device when the body is horizontally installed, and a second drain tray provided at a lower portion of a longitudinal (height) side of the heat exchanging device to collect the condensation water falling along the surface of the heat exchanging device when the body is vertically installed.
    Type: Application
    Filed: October 31, 2012
    Publication date: May 2, 2013
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Samsung Electronics Co., Ltd.
  • Publication number: 20130068421
    Abstract: A leakage shield for an air to liquid heat exchanger includes a drain pan, a liquid header panel, and a closure bar. The drain pan has a first side and a second side opposite the first side. The liquid header panel has a lower end attached to the first side of the drain pan, and extends vertically upwards from the first side of the drain pan. The closure bar panel has a lower end attached to the second side of the drain pan, and extends vertically upwards from the second side of the drain pan.
    Type: Application
    Filed: September 20, 2011
    Publication date: March 21, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Steven D. Army
  • Patent number: 8240358
    Abstract: A heat exchange apparatus includes first and second sections, and further includes a first cross-flow fluid passageway disposed at least partially within the first section, defined by an internal surface of the first section, and including an inlet and outlet. The apparatus also includes a second cross-flow fluid passageway disposed at least partially within the second section and including an inlet and an outlet. The apparatus includes an interior fluid passageway with at least one tube disposed at least partially within the first section and at least partially within the second section, extending at least partially through the first passageway and at least partially through the second passageway, and including at least an inlet and an outlet. A sealing zone is disposed between the first section and the second section. The sealing zone isolates the first section from the second section either or both mechanically and in fluid communication.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: August 14, 2012
    Assignee: L'Air Liquide Societe Anonyme pour l'Etude Et l'Exploitation des Procedes Georges Claude
    Inventors: Franklin D. Lomax, Christopher H. Van Dyke
  • Patent number: 8198539
    Abstract: A heat radiator 1 includes an insulating substrate 3 whose first side serves as a heat-generating-element-mounting side, and a heat sink 5 fixed to a second side of the insulating substrate 3. A metal layer 7 is formed on the second side of the insulating substrate 3 opposite the heat-generating-element-mounting side. A stress relaxation member 4 formed of a high-thermal-conduction material intervenes between the metal layer 7 of the insulating substrate 3 and the heat sink 5 and includes a plate-like body 10 and a plurality of projections 11 formed at intervals on one side of the plate-like body 10. The end faces of the projections 11 of the stress relaxation member 4 are brazed to the metal layer 7, whereas the side of the plate-like body 10 on which the projections 11 are not formed is brazed to the heat sink 5. This heat radiator 1 is low in material cost and exhibits excellent heat radiation performance.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: June 12, 2012
    Assignees: Kabushiki Kaisha Toyota Jidoshokki, Showa Denko K.K.
    Inventors: Kota Otoshi, Eiji Kono, Keiji Toh, Katsufumi Tanaka, Yuichi Furukawa, Shinobu Yamauchi, Ryoichi Hoshino, Nobuhiro Wakabayashi, Shintaro Nakagawa
  • Patent number: 8162034
    Abstract: An elongated structure (100) for the transmission of fluid-based compositions at non-ambient temperatures comprising a first conduit (130) for the transmission of a fluid-based composition, at least one flexible, elongated and inflatable temperature control conduit (110a, 110b) for the transmission of a temperature control fluid, the temperature control conduit (110a, 110b) having a relatively rigid elongated reinforcement member (116a, 116b); and elongated cover (140) holding said temperature control conduit (100a, 110b) in thermal communication with the first conduit (130).
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: April 24, 2012
    Inventor: Michael R. Bonner
  • Patent number: 8047164
    Abstract: A water heater. The water heater includes a water tank having a tank wall defining an interior space and adapted to contain water to be heated, a tank extension having an extension wall detachably mounted to the tank wall, the extension wall defining extension space communicating with the interior space, and defining an extension axis, an air inlet at least partially in the extension space extending through the extension wall at a radial angle to extension axis of tank extension, a combustor at least partially in the extension space and in fluid communication with the air inlet, and a plurality of heat exchange tubes configured to receive products of combustion from combustor and extending into interior space of the water tank. The extension space is configured to be flooded with water from the water tank.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: November 1, 2011
    Assignee: AOS Holding Company
    Inventor: Dennis R. Hughes
  • Publication number: 20110226445
    Abstract: A heat exchanger useful for mounting to an electronic component housing or other system requiring heat exchange. The heat exchanger has a manifold having a cross-sectional configured for providing an unequal coolant flow to an array of cooling channels fed by the manifold, thereby providing for preferential amounts of heat exchange over a given heat exchange surface of the heat exchanger. A safety channel may surround the channels carrying the coolant to prevent potential leakage outside of the heat exchanger.
    Type: Application
    Filed: March 22, 2010
    Publication date: September 22, 2011
    Inventor: Joseph H. Brand
  • Patent number: 7984639
    Abstract: According to one embodiment, a liquid leak sensing structure is provided with a casing including a lower wall, a circulation unit received in the casing and providing circulation of a liquid, a liquid leak sensor interposed between the lower wall of the casing and the circulation unit, and a liquid absorbing member interposed between the liquid leak sensor and the circulation unit. The liquid absorbing member permits part of a liquid from the circulation unit to flow therethrough toward the liquid leak sensor.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: July 26, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Masashi Shiozawa
  • Patent number: 7779893
    Abstract: A combination heat exchanger comprising of a heat exchange core having a plurality tubes, wherein the core having at least one core end; an end tank having two side walls and two end walls, two bulkheads the cavity defining a least a first chamber, a second chamber, and a third chamber, a perimeter edge defined by exterior edges of said side walls, exterior edges of said two end walls, and exterior edges of said two bulkheads; a header plate engaged between said end tank and said core end; and a gasket between said perimeter edge and contact surface of said header plate, wherein the compression ratio of the gasket is varied along the contact surfaces of the perimeter edge and contact surface of the end plate.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: August 24, 2010
    Assignee: Delphi Technologies, Inc.
    Inventors: Frank Joseph Leitch, Brian J. Coyle, Robert Charles Gmerek
  • Patent number: 7726391
    Abstract: A vehicle air conditioner casing has defrost, face, and front seat floor vents variably communicating with a mixing chamber. Air passageways in the casing include an evaporator and heater core. A rear seat console vent communicates with a warm air passageway including the heater core and a cool air passageway through a console side cool air bypass passageway on the casing bottom surface, under the heater core. A front seat temperature adjusting door adjusts variably opens cool air passageway outlets and the warm air passageway with respect to the mixing chamber. A rear seat main temperature adjusting door variably opens warm air passageway inlets and the console side cool air bypass passageway. A rear seat auxiliary temperature variably adjusts the openings of warm air passageway outlets and the console cool air bypass passageway with respect to the rear seat console vent.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: June 1, 2010
    Assignee: Halla Climate Control Corp.
    Inventors: Yong-Eun Seo, Sang-Chul Byun, Sung-Ho Kang, Seong-Seok Han, Yong-Sang Kim
  • Patent number: 7712517
    Abstract: A tube bundle apparatus for thermal exchange operations at high pressures and temperatures, under conditions of high aggressiveness of process fluids. The tube bundle includes a series of tubes whose internal wall includes a material selected from titanium, zirconium, or an alloy thereof, resistant to aggression of fluids, in which at least one of access chambers to the tube bundle is delimited by a wall including at least the following three metallic layers in succession: a) an external layer for tolerating pressure load, subject to corrosion by contact with the highly aggressive process fluid; b) an intermediate layer of stainless steel; (c) an anticorrosive lining in contact with the highly corrosive fluid, of a material selected from titanium, zirconium, or an alloy thereof. The apparatus can be particularly used as an exchanger/reactor, for example as a stripper, in the high pressure cycle of synthesis processes of urea.
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: May 11, 2010
    Assignee: Snamprogetti S.p.A.
    Inventors: Giorgio Gandolfi, Giuseppe Merelli, Andrea Scotto, Gian Pietro Testa
  • Patent number: 7669643
    Abstract: A device, including a heat exchanger plate and a plate package (2) of heat exchanger plates (1) which are provided beside each other to form a plate interspace between adjacent plates. The plate interspaces form, in an alternating order, first passages (3) for a first medium and second passages (4) for a second medium which cools the first medium. Each heat exchanger plate has at least two portholes forming a first inlet port channel and a first outlet port channel (7), which extend through the plate package to a first inlet and a first outlet, respectively, for the first medium to and from the first passages (3). The first outlet forms a gas outlet (31) for discharging a gaseous portion of the first medium and a liquid outlet (32) for discharge of liquid of the first medium. The liquid outlet (32) is separated from the gas outlet (31) to permit separate discharge of the liquid and gaseous portions.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: March 2, 2010
    Assignee: Alfa Laval Corporate AB
    Inventors: Rolf Ekelund, Rolf Christensen, Ingvar Lindholm
  • Publication number: 20090229784
    Abstract: Systems and methods for determining liquid depth information in a condensate pan of a climate control unit are provided. The systems and methods radiate a light beam into a liquid contained in a condensate pan associated with a climate control unit. The light beam is detected at a point of the condensate pan that is below a surface of the liquid. Information related to the depth of the liquid is determined based at least in part on the detected light beam. The systems and methods disclosed herein can determine if liquid depth in a condensate pan is greater than a threshold depth and can control evacuation of the liquid from the condensate pan.
    Type: Application
    Filed: March 13, 2008
    Publication date: September 17, 2009
    Applicant: AMERICAN POWER CONVERSION CORPORATION
    Inventor: Daniel J. Rohr
  • Patent number: 7523782
    Abstract: There is disclosed a heat exchanger for transferring heat between at least two fluids and a method for forming the heat exchanger. The heat exchanger preferably includes one or more end tanks, one or more inlets and outlets, one or more tubes, one or more fins, and one or more improved baffle combinations including at least one single piece double baffle. The improved single piece double baffles act as part of a baffle system, with advantages over multiple-piece only double baffle systems due to being assembled in one piece.
    Type: Grant
    Filed: July 31, 2004
    Date of Patent: April 28, 2009
    Assignee: Valeo, Inc.
    Inventors: Jay Lorentz, Bradley A. Smith
  • Patent number: 7520295
    Abstract: In a capillary carrier with an inlet and an outlet, a channel is formed and extends between the inlet and the outlet. At least one capillary tube is arranged within the channel, and sealing elements, by which the capillary tube is sealingly fixed to the channel, are arranged at least near an inlet portion and an outlet portion of the capillary tube. An area is formed limited by a part of the channel, the sealing elements and the exterior of the capillary tube, which is in connection with the exterior of the carrier through a fluid communication pad, whereby a possible fluid leak across the sealing elements will be led to this area, and from there to the exterior of the carrier.
    Type: Grant
    Filed: January 24, 2004
    Date of Patent: April 21, 2009
    Assignees: Cequr Aps., Diramo A/S
    Inventors: Per Brandt Rasmussen, Heiko Arndt
  • Patent number: 7497245
    Abstract: A heat exchanger assembly includes a core with a header, an end tank and a joint between the header and the end tank. A seal between the header and the end tank is in an area at the joint between the header and the end tank. The seal normally produces a permanent seal except when a misalignment of the seal at the joint between the header and the end tank produces a temporary seal. At least one groove or channel is defined in the header or the end tank at the joint between the header and the end tank, for detecting the temporary seal. The at least one groove or channel extends beyond a highest point at which the temporary seal is formed. The groove or channel functions as a positive leak path between the temporary seal and the header and/or the end tank in the area at the joint between the header and the end tank.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: March 3, 2009
    Assignee: Valeo, Inc.
    Inventors: Jay Lorentz, Stephen J. Gunn
  • Patent number: 7430896
    Abstract: According to one embodiment, a liquid leak sensing structure is provided with a casing including a lower wall, a circulation unit received in the casing and providing circulation of a liquid, a liquid leak sensor interposed between the lower wall of the casing and the circulation unit, and a liquid absorbing member interposed between the liquid leak sensor and the circulation unit. The liquid absorbing member permits part of a liquid from the circulation unit to flow therethrough toward the liquid leak sensor.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: October 7, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Masashi Shiozawa
  • Publication number: 20080169085
    Abstract: The present invention relates to a heat exchanger, and more particularly, to a heat exchanger in which a partition wall integrally formed with a header is fixedly inserted into a partition inserting groove of a tank and it is easy to check leakage of a heat exchange medium between the tank and the partition wall through a leakage checking hole formed in the partition inserting groove.
    Type: Application
    Filed: January 11, 2008
    Publication date: July 17, 2008
    Applicant: Halla Climate Control Corp.
    Inventors: Kwang Hun Oh, Hong-Young Lim, Ji-Yong Park
  • Patent number: 7377307
    Abstract: A vertical heat exchanger is described, which allows efficient elimination of the gas generated therein and efficient removal of the sludge accumulated therein. The vertical heat exchanger has at least part of one end of a vent pipe formed of an upper tube sheet part (an upper cover part in the case of a spiral heat exchanger) and the other end thereof connected outside the heat exchanger to an immediately adjacent fluid passing port passing the same fluid as the vent and/or at least part of one end of a drain pipe formed of a lower tube sheet part (a lower cover part in the case of a spiral heat exchanger) and the other end thereof connected outside the heat exchanger to an immediately adjacent fluid passing port passing the same fluid as the drain.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: May 27, 2008
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Yuichi Ijiri, Takeshi Nishimura, Kazuhiko Sakamoto, Osamu Dodo
  • Patent number: 7337836
    Abstract: A heat exchanger with a leakage vent. A fully brazed heat exchanger has an arrangement preventing the two media inside the heat exchanger from mixing in case of leakage. The heat exchanger includes plates having a pattern of grooves and inlet and outlet connections. The plates are placed in a pack and brazed together so as to form separate channels for two media between alternating pairs of plates. A separation zone is created around the connection so as so block off the medium that is not to reach the respective connection. The other medium can flow on by. A leakage vent to the exterior is provided in the separation zone so as to allow detection of any leakage.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: March 4, 2008
    Assignee: EP Technology AB
    Inventor: Lars Persson
  • Publication number: 20080047687
    Abstract: A combination heat exchanger comprising of a heat exchange core having a plurality tubes, wherein the core having at least one core end; an end tank having two side walls and two end walls, two bulkheads the cavity defining a least a first chamber, a second chamber, and a third chamber, a perimeter edge defined by exterior edges of said side walls, exterior edges of said two end walls, and exterior edges of said two bulkheads; a header plate engaged between said end tank and said core end; and a gasket between said perimeter edge and contact surface of said header plate, wherein the compression ratio of the gasket is varied along the contact surfaces of the perimeter edge and contact surface of the end plate.
    Type: Application
    Filed: August 22, 2006
    Publication date: February 28, 2008
    Inventors: Frank Joseph Leitch, Brian J. Coyle, Robert Charles Gmerek
  • Patent number: 7320359
    Abstract: The invention relates to a liquid cooling element for cooling heat generating elements of frequency converters, in particular, and an arrangement for connecting the liquid cooling element. The liquid cooling element 2 is provided with two channel systems: horizontal channels 3, 4 and transverse channels 5 connecting said horizontal channels. The liquid cooling element 2 is characterized by consisting of one integral piece, the transverse channels 5 being arranged eccentrically to the horizontal channels 3, 4 such that the longitudinal axis of the transverse channel 5 is closer to the lateral face of the cooling element than the longitudinal axis of the horizontal channel 3, 4 and the outer edge of the transverse channel 5 extends closer to the lateral face of the cooling element than the outer edge of the horizontal channel 3, 4.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: January 22, 2008
    Assignee: Vacon Oyj
    Inventors: Osmo Miettinen, Matti Pussinen
  • Publication number: 20070187067
    Abstract: A heat transfer tube is formed with a corrugated water tube to be used in a heat exchanger, and satisfying 0.04?Hc/OD, where Hc is the corrugated groove depth of the corrugated tube and OD is the corrugation outside diameter thereof.
    Type: Application
    Filed: September 18, 2006
    Publication date: August 16, 2007
    Applicant: HITACHI CABLE, LTD.
    Inventors: Ken Horiguchi, Kenichi Kikuchi, Ryuichi Kobayashi, Mamoru Hofuku, Kenji Kodama, Katsumi Nomura
  • Patent number: 7204297
    Abstract: The invention relates to a plate-type heat exchanger comprising a stack of double-walled heat exchanger plates (30–32) which are permanently interconnected and each include two plate members (33, 34) having a central heat transfer portion (35) and an edge portion (36) bent upwardly with respect to the plane of the central heat transfer portion (35), separate flow passage spaces for at least two heat exchange fluids being defined between the double-walled heat exchanger plates (30–32), the two plate members (33, 34) entering into close mutual engagement at least partly in the area of the central heat transfer portion (35) and the upwardly bent edge portion (36) yet permitting heat exchange fluid between the plate members which gets to the upwardly bent edge portions (36) to exit through an aperture between the upwardly bent edge portions (36), the upwardly bent edge portions (36) being formed respectively with an outer edge (33a, 34a).
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: April 17, 2007
    Assignee: GEA WTT GmbH
    Inventor: Peter Rehberg
  • Patent number: 7096932
    Abstract: A multi-fluid heat exchanger having separate fluid flow paths for two fluid streams to be heated or cooled by a third fluid stream includes first and second elongated, parallel tubular headers (10, 12), having opposed ends (14), generally uniformly spaced elongated tube slots (16) in each of the headers (10, 12) with the tube slots (16) in one header (10) facing-and aligned with the tube slots (16) and the other header (12), a plurality of flattened tubes (20) extending between the headers (10, 12) and having ends (22) received in aligned ones of the tube slots (16), one tube slot (24) in each header being unoccupied by any of the flattened tubes (20), the one tube slots (24) being aligned with each other and located at a predetermined location between the ends (14) of the headers (10, 12) and between two groups (A, B) of the flattened tubes (20) so there are two groups of the flattened tubes (20) on each side of the one tube slot (24), a pair of baffles (30) in each header (10, 12) with one on each side of t
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: August 29, 2006
    Assignee: Modine Manufacturing Company
    Inventors: David M. Scoville, Ken Nakayama, Richard T. Gebhard
  • Patent number: 7063133
    Abstract: A water heater including a tank having a wall defining an interior for holding water is provided. A heat exchange assembly is positioned at least partially within the interior of the tank. The heat exchange assembly has an outer tube extending within the interior of the tank. The outer tube has a wall with an inner surface. An inner tube extends within the outer tube. The inner tube has a wall with an outer surface. A gap is defined between the outer surface of the inner tube and the inner surface of the outer tube. Heat conducting fluid is contained within the gap. The fluid facilitates the transfer of heat between the inner tube and the outer tube.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: June 20, 2006
    Assignee: Bradford White Corporation
    Inventors: Michael Gordon, Wade W. Bernreuter
  • Patent number: 7063132
    Abstract: A water heater including a tank having a wall defining an interior for holding water is provided. A heat exchange assembly is positioned at least partially within the interior of the tank. The heat exchange assembly includes a metallic outer tube positioned within the interior of the tank. The outer tube has a wall with an inner surface and end portions positioned within the interior of the tank. The heat exchange assembly further includes a metallic inner tube extending within the outer tube and having end portions extending through the wall of the tank. A portion of the outer surface of the inner tube contacts a portion of the inner surface of the outer tube. An elongated passageway is defined between a portion of the outer surface of the inner tube and a portion of the inner surface of the outer tube to facilitate a flow of fluid.
    Type: Grant
    Filed: December 29, 2003
    Date of Patent: June 20, 2006
    Assignee: Bradford White Corporation
    Inventors: Michael Gordon, Wade W. Bernreuter
  • Patent number: 7040387
    Abstract: An apparatus for transferring heat from a first fluid to a second fluid, which is separated from the first fluid, having a stack-like or saucer-like structure comprising at least two plies (1, 2, 3), in particular plates (1, 2, 3), whereby each ply (1, 2, 3) comprises a heat-transferring area that has numerous passages (11, 12, 13), an inlet area located in front of the heat-transferring area in the direction of flow, and an exit area located behind the heat-transferring area in the direction of flow is proposed in which a relatively large heat-transferring surface area is realized in a small volume, hereby ensuring uninterrupted operation, even when the pressure differential between the two fluids is great. This is achieved according to the invention in that the inlet and/or exit area comprises at least one support element (18).
    Type: Grant
    Filed: June 9, 2001
    Date of Patent: May 9, 2006
    Assignee: Robert Bosch GmbH
    Inventors: Stephan Leuthner, Petra Beil
  • Patent number: 6973961
    Abstract: The invention relates to a plate-type heat exchanger (20) comprising a stack (21) of heat exchanger plates which are permanently interconnected and between which separate flow passage spaces are defined for at least two heat exchange fluids. One part of the heat exchanger plates is designed as single-walled heat exchanger plates each, having one plate member, while another part of the heat exchanger plates is designed as double-walled heat exchanger plates each, having two plate members.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: December 13, 2005
    Assignee: WTT-Wilchwitzer Thermo-Technik GmbH
    Inventors: Peter Rehberg, Ralf Lauer
  • Patent number: 6942014
    Abstract: The present invention is directed to a heat exchanger for an automotive vehicle. The heat exchanger includes a first end tank divided into a first portion and a second portion by a baffle, the first end tank including a through-hole. The baffle system includes a baffle or baffles with a central portion and at least one flanged peripheral portion, the flanged peripheral portion having a peripheral channel. Additionally, the baffle preferably is disposed within the end tank so that the peripheral channel is substantially juxtaposed with the through-hole in the end tank for providing a visual leak indicator.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: September 13, 2005
    Assignee: Valeo, Inc.
    Inventor: Pascal Bonnet
  • Patent number: 6938675
    Abstract: In order to enhance the working efficiency of assembling a heat exchanger in which two types of heat exchangers are integrated, there is provided a heat exchanger in which the size of the dummy tubes, which are the third tubes arranged in the portion between the first and the second radiator, and that of the first and the second tubes are made to be the same and further the size of the fins arranged between the dummy tubes and that of the first and the second fins are made to be the same. In order to reduce the occurrence of defective brazing of the separator to the header tank and in order to make it possible to easily repair the defective brazing portion, there is provided a hole in a portion of the header tank.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: September 6, 2005
    Assignee: DENSO Corporation
    Inventors: Hiroshi Kokubunji, Tsukasa Arimura, Yoshitake Hoshino