Pipe Exterior To Pipe Exterior Patents (Class 165/117)
  • Patent number: 10302319
    Abstract: A storage tank includes a condenser, a tank body having a storage space for storing a liquid phase working fluid, and a condenser core disposed in an interior of the tank body, wherein the tank body includes an upper body and a lower body, wherein a support plate is horizontally arranged within the upper body, wherein the condenser core includes a plurality of core elements, wherein each of the plurality of core elements includes upper end coupled to the upper body, lower end coupled to the support plate, and rear end coupled to a support member, wherein the support member extends to cross the upper body in a widthwise direction of the upper body.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: May 28, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Jung Min Seo
  • Patent number: 10302364
    Abstract: A falling film evaporator includes a plurality of evaporator tubes through which a volume of thermal energy transfer medium is flowed and a separator to separate a flow of liquid refrigerant from a vapor and liquid refrigerant mixture. A distributor distributes a flow of liquid refrigerant over the plurality of evaporator tubes. One or more vents stacks direct a flow of vapor refrigerant from the separator to a vent stack outlet in proximity to a refrigerant pool of the evaporator.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: May 28, 2019
    Assignee: CARRIER CORPORATION
    Inventors: Jack Leon Esformes, Ricardo Munoz
  • Patent number: 10285419
    Abstract: Heat exchange devices, including aseptic cooler devices, and systems including same are provided. Methods of using heat exchange device are also provided. In a general embodiment, the present disclosure provides heat exchangers having an open chamber configuration and including a first section containing a cooling or heating media and a second section containing a food product. The first section includes a level detecting device that is configured to maintain a level of cooling or heating media in the first section, while preventing the cooling or heating media from pressurizing the first section. The open chamber configuration provides an air break at a top portion of the first section that ensures that the cooling or heating media entering the first section is at, or close to, atmospheric pressure.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: May 14, 2019
    Assignee: Nestec S.A.
    Inventors: Ediz Batmaz, Barbara Burzinski Hartliep, Ricardo Reyes-Trevino, Ernst Beutler
  • Patent number: 10103081
    Abstract: A heat sink (100) for an electronic device comprising a first plate (102), a second plate (104) and a pipe (106). One side of the first plate (102) is in thermal contact with the electronic device. The second plate (104) is in thermal contact with the other side of the first plate (102). Further, the second plate (104) includes a hole and placed such that, a gap for airflow maintained between the first plate (102) and the second plate (104). One end the pipe (106) thermally coupled to the second plate (104). Thus facilitating the air flowing into the pipe (106) through the other end escapes the heat sink through the gap maintained between the first plate (102) and the second plate (104) via the hole on the second plate (104).
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: October 16, 2018
    Inventor: Ashwin Bharadwaj
  • Patent number: 9915452
    Abstract: A falling film evaporator for a heating ventilation and air conditioning (HVAC) system includes an evaporator housing and a plurality of evaporator tubes located in the evaporator housing and arranged into one or more tube bundles. A volume of thermal energy transfer medium is flowed through the plurality of evaporator tubes. One or more support sheets located along a length of the plurality of evaporator tubes to position and support the plurality of evaporator tubes in the housing, the one or more support sheets including one or more vapor flow passages to allow flow of vapor refrigerant along a length of the evaporator.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: March 13, 2018
    Assignee: CARRIER CORPORATION
    Inventors: Marcel Christians, Satyam Bendapudi, Jack Leon Esformes
  • Patent number: 9683789
    Abstract: The present invention relates to a method of producing multiple channels for use in a device for exchange of solutes between at least two fluid flows. The invention further relates to such a device. At least a first and a second sheet are comprised. The method comprises the steps of providing at least one of the first and second sheets with at least one profiled surface and joining the first and second sheets together with the profiled surfaces facing against each other. Channels are formed by the shape of the profiled surfaces.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: June 20, 2017
    Assignee: Air to Air Sweden AB
    Inventor: Johan Siverklev
  • Patent number: 9513039
    Abstract: A heat exchanger includes a shell, a refrigerant distribution assembly and a heat transferring unit. The refrigerant distribution assembly includes a first tray part and second tray parts. The first tray part continuously extends generally parallel to the longitudinal center axis of the shell to receive a refrigerant that enters the shell. The second tray parts are disposed below the first tray part to receive the refrigerant discharged from first discharge apertures such that the refrigerant accumulated in the second tray parts does not communicate between the second tray parts. The second tray parts are aligned along a direction generally parallel to the longitudinal center axis of the shell. The heat transferring unit is disposed below the second tray parts so that the refrigerant discharged from second discharge apertures of the second tray parts is supplied to the heat transferring unit.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: December 6, 2016
    Assignee: DAIKIN APPLIED AMERICAS INC.
    Inventors: Mitsuharu Numata, Kazushige Kasai
  • Patent number: 9377226
    Abstract: An evaporator and a turbo chiller including the evaporator are provided. The evaporator may be a falling film evaporator which may distribute refrigerant to a heat pipe uniformly and which may also control two-phase flow by lowering dynamic pressures of gas refrigerant and liquid refrigerant, and separate the liquid refrigerant and the gas refrigerant from each other to enhance heat exchange efficiency.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: June 28, 2016
    Assignee: LG ELECTRONICS INC.
    Inventor: Jungho Kang
  • Patent number: 9360104
    Abstract: A vehicle includes axle housing, a differential and a ring gear, a scraper port, and a reservoir. The housing has a cover forming a heat exchanger having a coolant side and a lubricant side. The differential and ring gear are configured to pump a lubricating fluid. The scraper port is disposed at a bottom of the heat exchanger adjacent to the ring gear and is configured to direct the lubricating fluid through the lubricant side of the heat exchanger. The reservoir is disposed at a top of the heat exchanger and is configured to receive and store the lubricating fluid from the lubricant side of the heat exchanger.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: June 7, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Robert Scott Lippert, John Edward Brevick, Mathew John Fast, Lawrence Marshall, Andreas E. Perakes, Danrich Henry Demitroff, W. Cary Cole, Furqan Zafar Shaikh, Michael Levin
  • Patent number: 9267737
    Abstract: The present disclosure is directed to heat exchangers with flow distribution manifolds divided into an inlet section and a distribution section by a distributor. The inlet section may have a relatively small cross-sectional area that promotes mixed phase flow of liquid and vapor refrigerant. The manifolds may be used with multichannel tubes with flow path inlet sections that allow refrigerant to enter the flow paths through an outer wall of the tubes. In certain embodiments, a portion of the outer wall is removed to expose the flow paths to a distribution chamber within the inlet manifold. The multichannel tubes extend into the distribution section to partition the distribution section into a series of distribution chambers defined by a pair of adjacent tubes, the distributor, and the inlet manifold. Within each distribution chamber, the refrigerant may be directed into the multichannel tubes through the inlet sections of the multichannel tubes.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: February 23, 2016
    Assignee: Johnson Controls Technology Company
    Inventors: Jerome Anthony Matter, III, Jeffrey Lee Tucker
  • Patent number: 8944152
    Abstract: A compact evaporator including a suction baffle system is provided for use in a refrigeration system. The suction baffle system includes a suction baffle and a passageway. The suction baffle includes a plurality of walls and is adjacent to the interior wall of shell. The passageway extends below one of the walls of the suction baffle toward the lower portion of the shell and is adjacent to the interior wall of the shell. A suction tube having an inlet is attached to the evaporator shell and the inlet is adjacent to the passageway and located partially below the suction baffle. The passageway minimizes the possibility of liquid carry-over in the suction tube that feeds into the compressor.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: February 3, 2015
    Assignee: Johnson Controls Technology Company
    Inventors: Satheesh Kulankara, Michael Lee Buckley, Mustafa Kemal Yanik
  • Patent number: 8636053
    Abstract: This invention relates to an internal jet impingement type shell and tube heat exchanger in which the jet cooling tubes and the heating tubes in shell and tube heat exchanger are formed either as a staggered tube bundle or as a square tube bundle, and the orifices on each jet cooling tube are provided according to the arrangement of tube bundle. Thus, the heat transfer performance of jet impingement type shell and tube heat exchanger is remarkably enhanced.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: January 28, 2014
    Assignee: Southern Taiwan University of Technology
    Inventor: Tong-Bou Chang
  • Patent number: 8051900
    Abstract: This invention relates to an internal jet impingement type shell and tube heat exchanger in which the jet cooling tubes and the heating tubes in shell and tube heat exchanger are formed either as a staggered tube bundle or as a square tube bundle, and the orifices on each jet cooling tube are provided according to the arrangement of tube bundle. Thus, the heat transfer performance of jet impingement type shell and tube heat exchanger is remarkably enhanced.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: November 8, 2011
    Assignee: Southern Taiwan University of Technology
    Inventor: Tong-Bou Chang
  • Publication number: 20100108301
    Abstract: Cooling performance of a cooler for pre-cooling humid gas supplied to a gas turbine power generation plant, etc. is improved by increasing heat transfer efficiency between the humid gas and cooling liquid flowing in heat exchanger tubes with utilization of condensed liquid generated due to the cooling of the humid gas. In a heat exchanger for cooling humid gas a flowing surrounding heat exchanger tubes 8 of the tube groups 9a and 9b by flowing cooling liquid r in the tubes, the liquid droplets cl generated by condensation of moisture contained in the humid gas are gathered and sprinkled or fallen in drops on a part of the heat exchanger tube group 9b, which results in increased heat exchange efficiency.
    Type: Application
    Filed: November 3, 2008
    Publication date: May 6, 2010
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Satoshi HIRAOKA, Koichi INOUE
  • Patent number: 7345320
    Abstract: The present invention provides a method and apparatus for using light emitting diodes for curing and various solid state lighting applications. The method includes a novel method for cooling the light emitting diodes and mounting the same on heat pipe in a manner which delivers ultra high power in UV, visible and IR regions. Furthermore, the unique LED packaging technology of the present invention utilizes heat pipes that perform very efficiently in very compact space. Much more closely spaced LEDs operating at higher power levels and brightness are possible because the thermal energy is transported in an axial direction down the heat pipe and away from the light-emitting direction rather than a radial direction in nearly the same plane as the “p-n” junction.
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: March 18, 2008
    Inventor: Jonathan S. Dahm
  • Patent number: 7255156
    Abstract: A heat exchanger including a housing having a base and defining an interior. A plurality of coils are located in the interior of the housing and are arranged to extend upwardly from the base to define a coil depth. A blower is adapted to move air through the plurality of coils in a direction of the coil depth. A water distribution system is preferably located around a circumferential periphery of the plurality of coils to spray water on an outer surface of the plurality of coils along substantially the entire coil depth thereof. At least one air inlet opening is located in the housing to allow airflow across the plurality of coils. Additional embodiments of improved heat exchangers are disclosed herein.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: August 14, 2007
    Assignee: PowerCold Corporation
    Inventors: Dean Calton, Henry Mark
  • Patent number: 7096931
    Abstract: Ribbed heat exchange tubes in which the aspect ratio of the ribs is less than 5, provide greater indirect heat exchange than conventional heat exchange tubes with or without fins, when used in a slurry comprising a liquid phase, in which is dispersed flowing gas bubbles or particulate solids and flowing gas bubbles. The ribs, and typically also the longitudinal axis of the heat exchange tubes, are aligned in a direction parallel to, or spirally along the gas bubble flow direction. This is useful to increase either (i) the productivity of a slurry Fischer-Tropsch hydrocarbon synthesis reactor without an increase in the temperature in the reactor or (ii) increasing the production of higher molecular weight hydrocarbons by reducing the reaction temperature at a given feed conversion.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: August 29, 2006
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Min Chang, Richard Frank Bauman
  • Patent number: 6997284
    Abstract: In a driven axle assembly (12) for a motor vehicle that includes a differential housing located substantially in the center of the axle and tubes (16, 17) extending laterally from the differential, surrounding axle shafts (20) and opening into a lubricant reservoir (60) in the differential housing, a system for circulating and cooling axle lubricant includes a cover (26) for closing and sealing the housing having a first aperture into the housing where a ring gear rotates through the lubricant reservoir. The aperture in the cover opens to a chamber that holds lubricant carried through the aperture by the rotating ring gear. Conduit (72) connected by a hydraulic fitting to the chamber has its opposite end connected to an oil cooler mounted on the axle tube. Conduit (78) returns the lubricant to the reservoir in the differential housing.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: February 14, 2006
    Assignee: Spicer Technology, Inc.
    Inventor: Thomas Nahrwold
  • Patent number: 6808016
    Abstract: An evaporative heat exchanger of a medium condenser of a air/conditioning system with less cooling fins or even without cooling fins. The evaporative heat exchanger is composed of a plurality of streamline cross sectional tubes used instead of conventional round tubes for providing an evaporative efficiency, and being easy to clean and maintain.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: October 26, 2004
    Assignee: Air Tech Co., Ltd.
    Inventors: Ho Hsin Wu, Dean Ding
  • Publication number: 20040094295
    Abstract: An evaporative heat exchanger of a medium condenser of a air condition system with less cooling fins even without cooling fins which a novel coil assembly composed of a plurality of streamline cross sectional tubes is used to instead of conventional round tubes for providing an ultra high evaporative efficiency therefore, and having the further improvement of easy to clean and convenient for maintenance.
    Type: Application
    Filed: January 23, 2003
    Publication date: May 20, 2004
    Applicant: Air Tech. Co., Ltd.
    Inventors: Ho Hsin Wu, Charles Y. Dean
  • Patent number: 6702004
    Abstract: An apparatus for use in a counter flow heat exchange assembly that provides increased heat exchange. The apparatus includes a plurality of adjacently spaced arrays, each array having a plurality of cooling conduits that are connected to one another through the utilization of connector portions. The adjacent vertical arrays have a centerline-to-centerline distance extending between them that is greater than the diameter of each of the conduits employed. In addition, the apparatus includes a vertical partition that extends between some or all conduits of each array.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: March 9, 2004
    Assignee: Marley Cooling Technologies, Inc.
    Inventors: Jason Stratman, Jidong Yang
  • Publication number: 20040007349
    Abstract: A heater exchanger used to condense a refrigerant in a refrigeration system. The heat exchanger is designed to perform a heat exchanging operation by the use of latent heat of water vaporization, thus having improved heat exchanging efficiency as well as a reduced size.
    Type: Application
    Filed: October 24, 2002
    Publication date: January 15, 2004
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Baek Youn, Jeung-Hoon Kim, Young-Saeng Kim
  • Patent number: 6564864
    Abstract: A method of exchanging heat is disclosed. Process fluid is passed through a dry indirect contact heat exchange section while a main air stream is also passed through that section. The process fluid is passed through a second indirect contact heat exchange section while a second air stream is passed through that section. A third air stream is passed through a direct contact heat exchange section and mixed with the second air stream to define the main air stream. Evaporative liquid is selectively distributed over the second indirect contact heat exchange section and over the direct heat exchange section. The distribution of evaporative liquid over one section is independent of the distribution of evaporative liquid over the other section.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: May 20, 2003
    Assignee: Baltimore Aircoil Company, Inc.
    Inventors: Thomas P. Carter, Branislav Korenic
  • Publication number: 20010002620
    Abstract: A method of exchanging heat is disclosed. Process fluid is passed through a dry indirect contact heat exchange section while a main air stream is also passed through that section. The process fluid is passed through a second indirect contact heat exchange section while a second air stream is passed through that section. A third air stream is passed through a direct contact heat exchange section and mixed with the second air stream to define the main air stream. Evaporative liquid is selectively distributed over the second indirect contact heat exchange section and over the direct heat exchange section. The distribution of evaporative liquid over one section is independent of the distribution of evaporative liquid over the other section.
    Type: Application
    Filed: January 12, 2001
    Publication date: June 7, 2001
    Inventors: Thomas P. Carter, Branislav Korenic
  • Patent number: 6213200
    Abstract: A system and method of exchanging heat are disclosed. Three heat exchange sections are used: a dry indirect contact heat exchange section, a second indirect contact heat exchange section that is operable in either a wet or dry mode, and a direct contact heat exchange section. The three sections are next to each other in an apparatus to reduce the overall height of the apparatus. The dry and second indirect contact heat exchange sections receive a process fluid in series or in parallel. Separate ambient air streams pass through the second indirect and direct contact heat exchange sections before mixing and entering the dry indirect contact heat exchange section. Another ambient air stream is mixed in upstream of the dry indirect contact heat exchange section when the system is operated in the dry mode. Two independent evaporative liquid distribution systems are included. One selectively distributes evaporative liquid over the second indirect contact heat exchange section.
    Type: Grant
    Filed: March 8, 1999
    Date of Patent: April 10, 2001
    Assignee: Baltimore Aircoil Company, Inc.
    Inventors: Thomas P. Carter, Branislav Korenic
  • Patent number: 6142219
    Abstract: A system and methods of extracting heat are disclosed. The system may be arranged as a fluid cooler or as a fluid condenser. Three heat exchange sections are provided: a dry indirect contact heat exchange section; a second indirect contact heat exchange section that is operable in either a wet or dry mode; and a direct contact heat exchange section. As a fluid cooler, a connecting flow path connects the dry indirect contact heat exchange section to the second indirect contact heat exchange section. A bypass flow path extends from the dry indirect contact heat exchange section to the process fluid outlet.
    Type: Grant
    Filed: March 8, 1999
    Date of Patent: November 7, 2000
    Assignee: Amstead Industries Incorporated
    Inventors: Branislav Korenic, Thomas P. Carter
  • Patent number: 5950445
    Abstract: A compound condensing device to be used in an air conditioner having at least two condensing stages, one behind another, along the blowing direction of a common air blower to reduce the temperature and pressure of the refrigerant in the coiled pipe extending from the exiting end of the compressor and input end of the expanding device. In both condensing stages, coiled pipe sections are arranged in an up-and-down array, and evaporative cooling liquid droplets are distributed over the coiled pipe to extract heat from the refrigerant in the coiled pipe. Furthermore, fins and water-retaining material wrapping around the coiled pipe are used to increase the efficiency of evaporation. With the arrangement of two or more condensing stages, the exiting air from the compound condensing device has a temperature of about 28.5.degree. C.
    Type: Grant
    Filed: June 3, 1998
    Date of Patent: September 14, 1999
    Inventor: Huai-Wei Wang
  • Patent number: 5946932
    Abstract: A multistage condensing structure using a liquid dispensing means to transfer droplets of evaporative cooling liquid onto an air-cooled condenser, taking advantage of the conventional air-cooled condensing method and the evaporation method using a liquid coolant. To further increase the efficiency of the air conditioner, two or more condensing units can be arranged in tandem along the blowing direction of a common air blower. With two or more condensing units arranged in tandem, the contacting area between the evaporation surfaces and the air flow can be enlarged to increase the evaporation efficiency without significantly increasing the size of the air conditioner. The multistage condensing structure, with its continuous heat-exchange along the flow of the refrigerant in the coiled pipe, causes an increase in the subcooling condition in the refrigerant. This condensing structure can, therefore, achieve a much higher E.E.R. than the known method of air cooling.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: September 7, 1999
    Inventor: Huai-Wei Wang
  • Patent number: 5839294
    Abstract: A vapor compression refrigeration system for cooling a liquid in which there is a spray dispenser for distributing liquid refrigerant over the tubes in a shell-and-tube type evaporator. The differential pressure in the refrigerant flow loop across the evaporator is the sole means of producing a flow through the spray dispenser. The evaporator is operated as a hybrid falling film heat exchanger, that is, in a semi-flooded condition. The lower portion of the evaporator shell is flooded with liquid refrigerant to wet the lower tubes in the tube bundle while the tubes in the upper portion are wetted only by refrigerant spray from the spray dispenser. The system is operated in a steady state condition whereby at least twenty-five percent (25%) of the tubes in the evaporator operate in a flooded heat transfer mode. The system allows a reduction in the amount of refrigerant charge in the system while at the same time avoiding the use of a recirculating system and pump.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: November 24, 1998
    Assignee: Carrier Corporation
    Inventors: Robert H. L. Chiang, Jack L. Esformes, Edward A. Huenniger
  • Patent number: 5816318
    Abstract: A heat exchange apparatus is provided with an indirect evaporative heat exchange section and a direct evaporative heat exchange section. A uniform temperature evaporative liquid is downwardly sprayed into the indirect section to indirectly exchange sensible heat with a hot fluid stream flowing within a series of enclosed circuits which comprise the indirect evaporative heat exchange section. After the evaporative fluid descends through the entire indirect heat exchange section and absorbs heat, it is distributed across fill media within the direct evaporative heat exchange section for cooling. Separate streams of ambient cooling air are simultaneously drawn into each of the heat exchange sections crosscurrently to evaporatively cool the evaporative liquid flowing within each section. The water cooled in the direct heat exchange section is then collected in a sump where it is allowed to mix and resultantly become uniform in temperature before being redistributed.
    Type: Grant
    Filed: February 15, 1995
    Date of Patent: October 6, 1998
    Assignee: Baltimore Aircoil Company, Inc.
    Inventor: Thomas P. Carter
  • Patent number: 5645124
    Abstract: A liquid refrigerant distributor for use within a heat exchanger having a body of heat exchange tubes. The distributor comprises a mesh screen and a liquid refrigerant sprayer. The liquid refrigerant sprayer is adapted to spray refrigerant on the mesh screen. The mesh screen being adapted to pass liquid and vaporous refrigerant but also to direct liquid refrigerant onto the heat exchange tubes.
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: July 8, 1997
    Assignee: American Standard Inc.
    Inventors: Jon P. Hartfield, Duane F. Sanborn
  • Patent number: 5603377
    Abstract: A heat pipe includes: a pipe barrel; and a large number of fins disposed on the peripheral surface of the pipe barrel at least on either a heat collecting section side or a radiating section side, each of the fins is attached to the pipe barrel on a plane perpendicular to the axis of the pipe barrel, and each of the fins is composed of a metal plate and net-like material adhered to both surfaces of the metal plate.A heat exchanger of gas-liquid contacting plate type includes: a plurality of heat transfer plates, disposed vertically at certain intervals, defining air flow passages therebetween which allow air to rise, and each of the plates has a heat medium flowing passage thereinside for allowing a heat medium to flow therethrough while the side surfaces of each of the heat transfer plates, which define the air flow passages, are adhered with nets for allowing a liquid to flow downward along the nets and plates.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: February 18, 1997
    Assignees: The Kansai Electric Power Co., Inc., Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Masumi Fujii, Taiichiro Suda, Yoshitsugu Hotta, Koichi Kitamura, Yukihiro Jinno, Tomio Mimura, Shigeru Shimojo, Masaki Iijima, Shigeaki Mitsuoka
  • Patent number: 5588596
    Abstract: Compression refrigeration apparatus for removing heat from a heat load using a falling film evaporator, operated with an azeotropic refrigerant and utilizing a spray tree distribution system that distributes a refrigerant film on a heat exchange surface by spraying liquid refrigerant onto a surface and allowing the refrigerant to drip onto the primary heat exchange surface. The apparatus allows for efficient recovery of lubricant deposited in the evaporator without redistributing the lubricant within the evaporator. In an alternative embodiment, liquid refrigerant is sprayed onto a mesh screen where it drips onto the primary heat exchange surface.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: December 31, 1996
    Assignee: American Standard Inc.
    Inventors: Jon P. Hartfield, Duane F. Sanborn
  • Patent number: 5561987
    Abstract: Compression refrigeration apparatus for removing heat from a heat load using a falling film evaporator, operated with an azeotropic refrigerant and utilizing a vapor-liquid separator, preferably inside the evaporator vessel. In one embodiment, two types of heat exchange surfaces are utilized--one for maximizing the axial distribution of refrigerant film on a heat exchange surface, the other for encouraging liquid refrigerant in contact with a heat exchange surface to boil and evaporate. The apparatus allows for efficient recovery of lubricant deposited in the evaporator without redistributing the lubricant within the evaporator.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: October 8, 1996
    Assignee: American Standard Inc.
    Inventors: Jon P. Hartfield, Duane F. Sanborn
  • Patent number: 5435382
    Abstract: A heat exchange apparatus is provided with an indirect evaporative heat exchange section and a direct evaporative heat exchange section. A uniform temperature evaporative liquid is downwardly sprayed into the indirect section to indirectly exchange sensible heat with a hot fluid stream flowing within a series of enclosed circuits which comprise the indirect evaporative heat exchange section. After the evaporative fluid descends through the entire indirect heat exchange section and absorbs heat, it is distributed across fill media within the direct evaporative heat exchange section for cooling. Separate streams of ambient cooling air are simultaneously drawn into each of the heat exchange sections to evaporatively cool the evaporative liquid flowing within each section. The water cooled in the direct heat exchange section is then collected in a sump where it is allowed to mix and resultantly become uniform in temperature before being redistributed.
    Type: Grant
    Filed: June 16, 1993
    Date of Patent: July 25, 1995
    Assignee: Baltimore Aircoil Company, Inc.
    Inventor: Thomas P. Carter
  • Patent number: 5217065
    Abstract: A feeder tube (26) for outputting a liquid evenly along its length is formed of an inner tube (40) and an outer tube (42), each having a split (48,50) along at least part of their lengths. The splits (48,50) are positioned away from each other thus allowing liquid in the inner and outer tubes (40,42) through the split (48) in the inner tube (40) and into a gap (44) between the inner and outer tubes (40,42). The liquid is then output from the feeder tube (26) through the split (50) in the outer tuber (42). The feeder tube (26) is incorporated in apparatus for enabling heat transfer between a fluid and an elongate element (22). In the apparatus at least one feeder tube (26) is positioned above and at least in part parallel to the elongate element (22), whereby an even film of the fluid in liquid form is formed on at least a part of the elongate element (22).
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: June 8, 1993
    Assignee: Electricity Association Technology Limited
    Inventors: Robert H. Green, William J. Lewis
  • Patent number: 5088550
    Abstract: A heat exchanger for fluids is disclosed having a support assembly for the coil bundle which comprises two vertically spaced-apart support members between which the coil bundle of the exchanger is positioned. The bundle comprises a plurality of vertically spaced tubes each having a number of convolutions which slope upwardly and proceed outwardly to form the bundle. A bridge member having spaced-apart scalloped portions is provided which separate the convolutions of each tube to permit air and water to circulate therebetween. The support members have means for varying the slope of the bridge members depending on the nature of the fluid entering the exchanger.
    Type: Grant
    Filed: April 16, 1991
    Date of Patent: February 18, 1992
    Inventors: Joseph R. Tippman, Vincent P. Tippmann
  • Patent number: 4918944
    Abstract: This invention relates to a falling film evaporator which is arranged to cause a liquid film to flow downward to thereby effect heat exchange using evaporation. In a space of an evaporating compartment, a gas-liquid separator is disposed to communicate with a compressor which constitutes a part of a refrigeration cycle.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: April 24, 1990
    Assignee: Hitachi, Ltd.
    Inventors: Kenji Takahashi, Takuji Torii, Takao Senshu, Tetsuji Yamashita, Shizuo Zushi
  • Patent number: 4693302
    Abstract: A heat exchange apparatus having a first header for receiving fluid from a source, flexible thin-walled tubular plastic heat exchange elements defining a plurality of passages through a heat exchange zone and second header means for receiving fluid from said plastic heat exchange elements after passing through said heat exchange zone. Support elements are provided, supporting and rigidifying the flexible thin-walled tubular plastic heat exchange member. The plastic heat exchange element defining said plurality of passages is radially expandable by pressure of fluid from said source to avoid scale formation.
    Type: Grant
    Filed: November 14, 1985
    Date of Patent: September 15, 1987
    Assignee: Leonard Oboler
    Inventor: Diego E. F. Dodds
  • Patent number: 4655977
    Abstract: A heat exchanger comprises a plurality of coil units to form a substantially rectangular prism. Each of the coil units is supported by a pair of supporting frame members through a pair of electrically insulating spacers without direct contact with the supporting frame members.
    Type: Grant
    Filed: October 8, 1985
    Date of Patent: April 7, 1987
    Assignee: Shinwa Sangyo Co., Ltd.
    Inventors: Jujiro Komiya, Yuji Kikuchi, Katsuaki Suzuki
  • Patent number: 4440216
    Abstract: An improved finned heat exchanger tube wherein the upper circumferential portions of the fins are foreshortened to enhance axial movement of liquid introduced onto the top of the finned tube. Accordingly, the liquid can gravitate both axially and circumferentially of the finned tube and thoroughly wet the entire external surface thereof.
    Type: Grant
    Filed: July 12, 1982
    Date of Patent: April 3, 1984
    Assignee: Lockheed Missiles & Space Company, Inc.
    Inventor: Raul J. Conti
  • Patent number: 4252108
    Abstract: Set out herein is a solar heating panel adapted to exchange solar heat with fluids, the panel including a translucent upper surface covering the top of a rectangular enclosure, the enclosure further supporting on stand-offs a heat exchange panel. The heat exchange panel is provided with a plurality of tubular segments attached to the exposed surface thereof by which the solar rays received in the panel are reflected repeatedly until absorbed. It is contemplated to convey fluid around the tubular segments, the fluid thus exchanging heat therewith.
    Type: Grant
    Filed: January 29, 1979
    Date of Patent: February 24, 1981
    Inventor: John P. Drow
  • Patent number: 4201262
    Abstract: A cooler for chilling a working fluid used in a manufacturing or production process comprised of a tank having a reservoir in the bottom and one or more cooling coils mounted above the reservoir. A metering plate is inserted in the tank above the cooling coils to distribute the working fluid to be cooled over the refrigerant-containing coil at a predetermined rate. The metering plate has a plurality of tapered metering holes in a circular pattern aligned with each coil of the cooling coils mounted in the tank. The metering holes evenly distribute the hot working fluid over the cooling coils. Distribution and overflow barriers are provided on the metering plate to provide a constant maximum flow of hot working fluid through the cooling tank. Refrigerant is pumped through the cooling coils from the bottom to the top in a counterflow action with respect to the hot working fluid to be cooled.
    Type: Grant
    Filed: August 7, 1978
    Date of Patent: May 6, 1980
    Inventor: Stanley A. Goldstein
  • Patent number: 4141410
    Abstract: A process for evaporation comprises the step of introducing high-temperature steam successively into separate bundles of horizontal heat-transfer tubes and spraying feed-liquid over the tubes. The number of the tubes in each bundle is smaller than that in the next lower bundle. The steam is first introduced into the tubes of the bottom bundle after cooled by subjection to condensate produced in the tubes of the middle bundle. An evaporator is also disclosed.
    Type: Grant
    Filed: April 18, 1977
    Date of Patent: February 27, 1979
    Assignee: Sasakura Engineering Company, Limited
    Inventor: Masahura Takada