Projecting Internal And External Heat Transfer Means Patents (Class 165/179)
  • Patent number: 10281440
    Abstract: The clamping device according to the invention for clamping at least two processing devices for a sample preparation is made up essentially of at least three clamping blocks arranged in the axial direction, at least two of which are designed as movable clamping blocks, and a displacement mechanism for displacing the movable clamping blocks between an open position for inserting the processing devices, and a clamping position in which the at least two processing devices are clamped one on top of the other in the axial direction between two clamping blocks in each case. The displacement mechanism is designed for displacing the at least two movable clamping blocks in opposite directions.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: May 7, 2019
    Assignee: LCTECH GMBH
    Inventor: Martin Brandlhuber
  • Patent number: 10208637
    Abstract: A sump tank for use with a gas turbine engine in offshore conditions is disclosed. In embodiments, the sump tank includes two circuitous lubricant flow paths. Each flow path includes an end compartment, a side compartment, and a tube that feed to a central compartment. The baffles used to form the central compartment are angled so as to cause the lubricant entering from the tubes to swirl, which may increase the residence time of the lubricant and may help ensure that any entrained air is released from the lubricant prior to entering the suction line.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: February 19, 2019
    Assignee: Solar Turbines Incorporated
    Inventor: Mark Justin Mulock
  • Patent number: 9863302
    Abstract: A cooling device includes a base plate to a rear surface side of which an under-floor device is attached. A heat radiating unit is attached to a front surface side of the base plate and radiating heat is conducted from the under-floor device via the base plate. A cover surrounding the heat radiating unit and including a side opening is capable of causing traveling wind to flow therein and thereout, in opposite side surfaces facing a traveling direction of a vehicle. A guide plate guides traveling wind flowing in from the side opening to the heat radiating unit by blocking at least part of a gap area between a surface connecting the opposite side surfaces and the heat radiating unit, the guide plate being provided in a side gap area between a side surface of the cover and the heat radiating unit on a traveling-wind flow-in side.
    Type: Grant
    Filed: November 22, 2012
    Date of Patent: January 9, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroyuki Higashino, Yukio Nakashima, Shigetoshi Ipposhi
  • Patent number: 9855595
    Abstract: Integrated adsorption and heat exchanger devices are provided for solid sorption refrigeration systems (1), together with methods for making such devices. An integrated adsorption and heat exchanger device (20, 30, 45, 52) comprises a solid material having formed therein both a porous adsorption structure (21, 31, 44, 53), which is pervious to an adsorbate of said system (1), and a heat exchanger structure (22, 32), which is impervious to said adsorbate, for heat exchange with the porous adsorption structure in operation of the system (1).
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: January 2, 2018
    Assignee: International Business Machines Corporation
    Inventors: Bruno Michel, Patrick Ruch
  • Patent number: 9851088
    Abstract: A light includes a housing defining a bottom end and a top end, a heat sink disposed within the housing and including a central body that defines a central aperture, and a plurality of arms coupled to the central body and extending outward from the central body, each of the arms including a light receiving surface. A plurality of LEDs is coupled to each of the light receiving surfaces and a hollow tube extends from the bottom of the housing and is coupled to the heat sink to define a cooling air passage that passes through the hollow tube and the central aperture to direct cooling air from the bottom of the housing to the top of the housing.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: December 26, 2017
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventors: Kyle Harvey, Ross McIntyre, David Proeber, Jason Isaacs, Joshua Schermerhorn, Brian Cornell
  • Patent number: 9777824
    Abstract: A cooled gear housing includes a first casing section and a second casing section joined together to define an internal volume of the gear housing assembly. A heat conducting membrane is arranged within the gear housing assembly to hydraulically separate a first portion of the internal volume from a second portion of the internal volume. Two or more meshed gears are located within the first portion of the internal volume. Coolant inlet and outlet ports are arranged on one of the casing sections, and are in fluid communication with the second portion of the internal volume.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: October 3, 2017
    Assignee: Modine Manufacturing Company
    Inventors: Ashutosh Patil, Christopher Chudy, Robert Sherman, Jason Braun, Daniel Raduenz
  • Patent number: 9770794
    Abstract: A vertical bundle air-cooled heat exchanger, In one embodiment, the invention can be a vertical bundle air-cooled condenser comprising: at least one tube bundle assembly comprising; a tube bundle comprising a plurality of finned tubes arranged in a substantially vertical and side-by-side orientation, each of the plurality of finned tubes comprising a cavity; a top header pipe comprising an inlet header cavity operably coupled to a source of steam; a bottom header pipe comprising an outlet header cavity for collecting condensate; top ends of the plurality of finned tubes coupled to the top header pipe and the bottom ends of the plurality of finned tubes coupled to the bottom header pipe; and, a shell having an open, top end and open bottom end, the at least one tube bundle assembly positioned within the shell.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: September 26, 2017
    Inventors: Krishna P. Singh, Indresh Rampall, Joseph Rajkumar, Frank David Sanderlin
  • Patent number: 9103604
    Abstract: The invention relates to a heat exchange unit between a first and a second fluid with the heat exchange unit comprising: at least one interior duct (17) having a plurality of first longitudinal internal channels (21) for the circulation of the first fluid, a hollow exterior envelope (19) wherein is housed the interior duct (17), and at least two ribbed walls (19a) arranged on either side of the interior duct (17), in contact with the interior duct (17) and as well with the exterior envelope (19), in such a way as to delimit a plurality of second longitudinal channels (29) for the circulation of the second fluid, the second channels (29) extending substantially in parallel to the first channels (21). The invention also relates to a heat exchanger incorporating a heat exchange unit as well as a method of manufacturing such a unit.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: August 11, 2015
    Assignee: VALEO SYSTEMES THERMIQUES
    Inventor: Christophe Denoual
  • Patent number: 8979331
    Abstract: The invention discloses a replaceable LED street lamp module, including at least one module portion and a clamping sheet set. The module portion includes an LED module, a lens, an inner radiator, an outer radiator and a heat pipe set, the inner radiator and the outer radiator are sleeved with each other, the heat pipe set is bent and located between the inner radiator and the outer radiator and supports and fixes the LED module, the lens protects the LED module and allows light to be emitted from the LED module, notches are arranged on the outer circle of the outer radiator, and the clamping sheet set is clamped in the notch via two clamping sheets in order to clamp and fix the module portion, thereby being assembled on the opening of the street lamp housing.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: March 17, 2015
    Assignee: Zhongshan Weiqiang Technology Co., Ltd.
    Inventors: Ke-Chin Lee, Hung-Chieh Chen
  • Patent number: 8971695
    Abstract: A heater is provided with a heater core having a source of thermal energy in a heat exchange relationship with a heat exchanger. A fan moves air through the heater core from an air inlet to an air outlet. The heater core is thermally insulated by an air jacket from an exterior case.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: March 3, 2015
    Assignee: Suarez Corporation Industries
    Inventors: Neil R. Tyburk, Patrick M. Nolan
  • Patent number: 8925620
    Abstract: A windshield washer fluid heater for an automotive vehicle has an elongated housing with two open ends and in which the housing defines a housing chamber. A tubular subhousing divides the housing chamber into an outer housing chamber and an inner housing chamber. A core is disposed in the inner housing chamber and this core forms an annular chamber between the core and the subhousing. A pair of end caps is attached to the ends of the housing and these end caps sealingly engage the housing and the subchamber to fluidly separate the outer housing chamber from the annular chamber. The housing includes a washer fluid passageway which fluidly connects a washer fluid port on the end cap with the annular chamber as well as a coolant fluid passageway which fluidly connects a coolant port on each end cap with the housing chamber.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: January 6, 2015
    Assignee: TSM Corporation
    Inventors: Jere Lansinger, Brian Tait
  • Patent number: 8899308
    Abstract: A heat exchanger tube with a tube axis and with a tube wall having a tube outside and a tube inside, axially parallel or helically encircling inner ribs, with a groove which lies in each case between adjacent inner ribs, being formed from the tube wall on the tube inside, the helix angle, measured with respect to the tube axis, of the inner ribs being smaller than or equal to 45°, the region of the inner ribs which is remote from the tube wall being deformed at regular intervals asymmetrically on one side essentially in the tube circumferential direction, the deformed material of the inner ribs forming protrusions above the groove, the protrusions extending in each case over a finite deformation zone along an inner rib, the markedness of the deformation changing continuously within the deformation zone.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: December 2, 2014
    Assignee: Wieland-Werke AG
    Inventors: Andreas Beutler, Jean El Hajal, Ronald Lutz
  • Patent number: 8881797
    Abstract: A heat exchanger includes a housing which maintains a first section that has a first inlet and a first outlet, and a second section that has a second inlet and a second outlet. At least one conductive plate extends between the first section and the second section, wherein the conductive plate transfers heat from a fluid flowing in one of the sections to another fluid flowing in the other of the sections. The sections may be positioned side-by-side such that the fluids' flow is coplanar, or co-curvilinear, and non-intersecting.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: November 11, 2014
    Assignee: Ametek, Inc.
    Inventors: David M. Melo, Joseph M. Bacino, Manu Z. Joseph
  • Patent number: 8857505
    Abstract: The invention relates to a heat exchanger tube with at least one structured region on the inside of the tube, which has the following features: a) integral internal ribs of height H run on the inside of the tube in axially parallel or helical-line-shaped manner continuously over the circumference at an angle of inclination ?1, measured with respect to the tube axis, with primary grooves being formed, b) the internal ribs are crossed over the entire circumference of the tube by spaced-apart secondary grooves which, parallel to one another at an angle of inclination ?2, measured with respect to the tube axis, have a notch depth T2 and a groove opening angle ?2, c) the internal ribs and the secondary grooves are crossed over the entire circumference of the tube by spaced-apart tertiary grooves which run continuously over the circumference parallel to one another at an angle of inclination ?3, measured with respect to the tube axis, and have a notch depth T3 and a groove opening angle ?3.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: October 14, 2014
    Assignee: Wieland-Werke AG
    Inventors: Andreas Beutler, Jean El Hajal, Markus Revermann, Andreas Schwitalla
  • Patent number: 8809679
    Abstract: A heat sink and method for gaseous cooling of superconducting power devices. Heat sink is formed of a solid material of high thermal conductivity and attached to the area needed to be cooled. Two channels are connected to the heat sink to allow an inlet and an outlet for cryogenic gaseous coolant. Inside the hollow heat sink are fins to increase metal surface in contact with the coolant. The coolant enters through the inlet tube, passes through the finned area inside the heat sink and exits through the outlet tube.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: August 19, 2014
    Assignee: The Florida State University Research Foundation, Inc.
    Inventors: Danny G. Crook, Lukas Graber, Sastry Pamidi
  • Publication number: 20140182828
    Abstract: A heat exchanging device has a single extruded part made as a tubular body with external and internal radial branches. The tubular body has longitudinal round holes in a circumferential direction. At least one mount is on the outer surface of the tubular body. Internal and external radial branches taper from the base to the edge of branches and are made sinusoidal with a constant step and amplitude. They can be of the same width from the base to the edge of branches. The sinusoids of external radial branches can be of a variable amplitude and step from the base to the edge. The external radial sinusoidal branches can be of a different length relative and at different distances from each other. The radial branches can be have additional undulating projections. The round holes are made along the entire circumference of the body at equal distances from each other.
    Type: Application
    Filed: March 6, 2014
    Publication date: July 3, 2014
    Applicant: Obschestvo s ogranichennoi otvetstvennostju "Proryvnye innovatsionnye tekhnologii"
    Inventor: Vsevolod P. LEKHIN
  • Patent number: 8746961
    Abstract: One aspect of the present invention relates to a method for increasing the temperature of a substance which is initially in an at least partly solidified state in a container, where at least one heat exchanger is arranged in the container. One object is to obtain that the temperature of a substance may be changed relatively fast. This is obtained by having pumping means for displacing the substance, exchanging heat between a heat exchanger and the substance, displacing substance with the pumping means for increased heat exchange between the heat exchanger and the substance, as well as stirring the substance with the pumping means by displacing the substance inside the container. When the substance is displaced, then not only stagnant substance is in contact with the heat exchanger for heat exchange. The amount of substance in contact with the heat exchanger is thereby greatly increased, and the heat transfer is less dependent on thermal conductivity of the substance.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: June 10, 2014
    Assignee: Aarhuskarlshamn Denmark A/S
    Inventor: Anders Kromand Hansen
  • Patent number: 8734005
    Abstract: One aspect of the present invention relates to a method for increasing the temperature of a substance which is initially in an at least partly solidified state in a container, where at least one heat exchanger is arranged in the container. One object is to obtain that the temperature of a substance may be changed relatively fast. This is obtained by having pumping means for displacing the substance, exchanging heat between a heat exchanger and the substance, displacing substance with the pumping means for increased heat exchange between the heat exchanger and the substance, as well as stirring the substance with the pumping means by displacing the substance inside the container. When the substance is displaced, then not only stagnant substance is in contact with the heat exchanger for heat exchange. The amount of substance in contact with the heat exchanger is thereby greatly increased, and the heat transfer is less dependent on thermal conductivity of the substance.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: May 27, 2014
    Assignee: Aarbuskarlshamn Denmark A/S
    Inventor: Anders Kromand Hansen
  • Patent number: 8627880
    Abstract: The present invention relates to an exhaust gas cooler (1), in particular for an exhaust gas recirculation system of an internal combustion engine, preferably of a motor vehicle, comprising an exhaust gas inlet (2) which is connected in a communicating manner with an inlet chamber (4), an exhaust gas outlet (3) which is connected in a communicating manner with an outlet chamber (5), a plurality of exhaust gas pipes (7) which are configured as flat pipes, extend parallel to each other through a coolant chamber (8) and are connected in a communicating manner on one side to the inlet chamber (4) and on the other side to the outlet chamber (5), a coolant inlet (9) which is connected in a communicating manner to the coolant chamber (8), and a coolant outlet (10) which is connected in a communicating manner to the coolant chamber (8).
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: January 14, 2014
    Assignee: Mahle International GmbH
    Inventors: Jörg Dittmann, Holger Peters, Harald Rieger, Bernhard Schwalk
  • Patent number: 8573286
    Abstract: The invention relates to a heat exchanger for a motor vehicle, comprising a first flow path (1), a deflection region (13) located downstream of the first flow path (1) and a second flow path (2) that is located downstream of the deflection region (13). The first and second flow paths (1, 2) can be traversed by a fluid to be cooled and can be surrounded by a coolant to dissipate heat. The second flow path (2) has a flow resistance that differs from that of the first flow path (1).
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: November 5, 2013
    Assignee: Behr GmbH & Co. KG
    Inventors: Christian Domes, Peter Geskes
  • Publication number: 20130276476
    Abstract: An air conditioning system includes a multiple effect evaporative condenser, at least one compressor, at least one heat exchanger, an expansion valve, and at least one multiple-effect evaporative condensers. The multiple effect evaporative condenser and the heat exchanger utilize a highly efficient heat exchanging pipe for performing heat exchange between water and refrigerant.
    Type: Application
    Filed: April 21, 2012
    Publication date: October 24, 2013
    Inventor: Lee Wa Wong
  • Patent number: 8550152
    Abstract: A metallic heat exchanger tube (1) with a tube wall (2) and with integrally formed ribs (3) which run around on the tube outside (21) and which have a rib foot (31), rib flanks (32) and a rib tip (33), the rib foot (31) projecting essentially radially from the tube wall (2), and the rib flanks (32) being provided with additional structural elements which are formed as material projections (4) arranged laterally on the rib flank (32), the material projections (4) having a plurality of boundary faces (41, 42), at least one of the boundary faces (42) of at least one material projection (4) being curved convexly.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: October 8, 2013
    Assignee: Wieland-Werke AG
    Inventors: Andreas Beutler, Jean El Hajal, Achim Gotterbarm, Ronald Lutz
  • Patent number: 8550147
    Abstract: A windshield washer fluid heater having a housing which defines a housing chamber. A subhousing is disposed in the housing chamber. This subhousing is constructed of a thermally conductive material and divides the housing chamber into an outer housing chamber between the housing and the subhousing, and an inner housing chamber inside the subchamber. The outer housing chamber and inner housing chambers are fluidly isolated from each other. A core is disposed in the inner housing chamber thus forming an annular fluid chamber between the core and the subhousing. A washer fluid inlet on the housing is open to one end of the annular chamber while a washer fluid outlet at the other end is open to the other end of the annular chamber. An engine coolant inlet is open to the outer chamber while an engine coolant outlet is also open to the outer chamber at a position spaced from the inlet so that fluid flow into the coolant inlet flows through the outer housing chamber and to the coolant outlet.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: October 8, 2013
    Assignee: Clear Vision Associates, LLC
    Inventor: Jere R. Lansinger
  • Patent number: 8534349
    Abstract: A heat exchanger tube (1), wherein a plurality of refrigerant passages (5) extending in the longitudinal direction of the tube are formed in a flat tube body (2) with a specified length parallel with each other in the lateral direction of the tube and, where the overall cross sectional area of the tube body (2) is (At), the overall cross sectional area of the refrigerant passage (5) is (Ac), the outer peripheral length of the tube body (2) is (L), and the overall inner peripheral length of the refrigerant passage (5) is (P), set so that the relation of Ac/At×100=30 to 55 and P/L×100=150 to 325 can be established, whereby a heat exchanging performance can be increased.
    Type: Grant
    Filed: November 22, 2001
    Date of Patent: September 17, 2013
    Assignee: Keihin Thermal Technology Corporation
    Inventors: Naoki Nishikawa, Koichiro Take, Noboru Ogasawara
  • Patent number: 8453718
    Abstract: A sintered heat pipe, a manufacturing method thereof and a manufacturing method for a groove tube thereof are provided. The sintered heat pipe includes a groove tube, a sintered powder layer and a working fluid. The groove tube has a plurality of grooves and a first end and a second end opposite to the first end. Each groove extends along an axial direction of the groove tube. The first end and the second end are closed. The sintered powder layer is formed on an inside wall of the groove tube, and the groove tube is filled with the working fluid. The size of each powder in the sintered powder layer is greater than a width of each of the grooves.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: June 4, 2013
    Assignee: Zhongshan Weiqiang Technology Co., Ltd.
    Inventors: Ke-Chin Lee, Shu-Lung Chung
  • Patent number: 8448698
    Abstract: A tube for a heat exchanger includes a first and a second plate portions disposed opposite each other. At least the first plate portion includes a base plate portion bonded to the second plate portion by brazing and multiple protruding portions, which protrude from the base plate portion toward an opposite side from the second plate portion, having a first and a second protruding portions. A protruding dimension of the first protruding portion is larger than that of the second protruding portion. The base plate portion and the protruding portions extend straightly in a tube longitudinal direction. The second plate portion and the protruding portions have a clearance therebetween defining an internal fluid passage. The second protruding portion and the base plate portion are configured to define an external fluid passage extending in a tube width direction.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: May 28, 2013
    Assignee: Denso Corporation
    Inventors: Hiroyuki Genda, Ryoichi Sanada, Akira Itoh, Masahiro Omae
  • Patent number: 8418753
    Abstract: A heat exchange tube is constructed by forming, on a cylindrical tube peripheral wall, a plurality of projecting portions which project to an inside of the tube peripheral wall, and which are formed by pushing. The plurality of projecting portions are formed, respectively, into conical shapes across a tube axis, and are arranged along virtual spirals on the tube peripheral wall. Accordingly, it is possible to provide a heat exchange tube which facilitates formation of a plurality of projecting portions with the thickness hardly changed and without formation of protruded portions, and which is capable of contributing to enhancement of heat exchanging efficiency.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: April 16, 2013
    Assignees: Yutaka Giken Co., Ltd., Honda Motor Co., Ltd.
    Inventors: Isao Hirokawa, Tetsuaki Nakayama, Yasuyuki Watanabe, Toshihiro Kondo, Atsumu Naoi, Hideyuki Ushiyama
  • Patent number: 8398245
    Abstract: A heat exchanger which is hollow and contains a plurality of small flow paths includes: a plurality of partition walls disposed in parallel with one another in the width direction of the heat exchanger to form the plural small flow paths; and an inlet unit and an outlet unit configured to communicate with the inside and the outside of the heat exchanger, and allow cooling liquid to flow into and out of the heat exchanger through the inlet unit and the outlet unit, the inlet unit and the outlet unit extend in directions opposite to each other along the width direction from a pair of center positions located approximately at the centers of inner side surfaces of the heat exchanger in the width direction and opposed to each other, and penetrate outer side surfaces of the heat exchanger.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: March 19, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Yoshiyuki Yanagisawa, Yasunaga Momose
  • Patent number: 8387251
    Abstract: There is provided a production method of an internally ribbed steel tube, capable of forming spiral ribs stably so as to reduce troubles at the time of cold drawing for forming the spiral ribs of the steel tube. In this production method, the spiral ribs can be formed stably so as to reduce troubles at the time of cold drawing for forming the spiral ribs by straightening bends of a blank tube before the cold drawing for forming the spiral ribs, by optimizing the direction of the spiral rib formation after the bend straightening, and by correcting the drawing schedule depending on the blank tube. The obtained internally ribbed steel tube is well applicable to an increased capacity and a higher temperature/higher pressure operation of a boiler because the steel tube is provided with high formability and excellent quality as a boiler steel tube.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: March 5, 2013
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventor: Kenichi Beppu
  • Publication number: 20120312512
    Abstract: The invention relates to a heat exchanger, in particular for a synthesis gas installation, for the heat exchange between a first and a second medium (W, G), comprising a shell (10), which is made to extend along a longitudinal axis (L) and bounds a shell space (M) for receiving the first medium (W), a tube space (R), which is surrounded by the shell space (M), for receiving the second medium (W), and a pass baffle (20), which is arranged in the shell space (M) and made to extend along the longitudinal axis (L), for directing the first medium (W), carried in the shell space (M), along the longitudinal axis (L). According to the invention, it is provided that the pass baffle (20) is welded to the shell (10).
    Type: Application
    Filed: June 7, 2012
    Publication date: December 13, 2012
    Applicant: LINDE AKTIENGESELLSCHAFT
    Inventors: Joachim CONRAD, Bjorn NEUBER, Mariya NACHEVA
  • Patent number: 8302307
    Abstract: A method of forming a plurality of protrusions on the inner surface of a tube to reduce tube side resistance and improve overall heat transfer performance. The method includes cutting through ridges on the inner surface of the tube to create ridge layers and lifting the ridge layers to form the protrusions. In this way, the protrusions are formed without removal of metal from the inner surface of the tube, thereby eliminating debris which can damage the equipment in which the tubes are used.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: November 6, 2012
    Assignee: Wolverine Tube, Inc.
    Inventors: Petur Thors, Nikolai Zoubkov
  • Patent number: 8298493
    Abstract: The heat exchange apparatus provides a flow passage for the heat exchange fluid comprising a succession of flow passage chamber portions separated from one another by intervening throttle forming passage portions of smaller cross section, and therefore of smaller flow capacity, transverse to the flow direction, so that the heat exchange fluid moves at a higher velocity in the throttle forming portions than in the chamber portions. The fluid is moved at a rate such that its velocity in the throttle forming portions is high enough to reduce the thickness of the fluid boundary layer on the passage wall and thereby facilitate the heat exchange. Alternatively, or in addition, the velocity is high enough to at least reduce the rate of fouling of the passage wall surface. Alternatively, or in addition, the fluid flows as eddy vortices, the spacing of the chamber portions along the passage being such that wake interference flow is established which enhances the rate of heat exchange.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: October 30, 2012
    Inventor: Richard A. Holl
  • Patent number: 8267163
    Abstract: A tube for a heat exchanger is disclosed, the tube including a plurality of protuberances formed on an inner surface of the tube. The protuberances are arranged in a pattern that maintains a substantially constant cross sectional hydraulic area along a length of the tube.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: September 18, 2012
    Assignee: Visteon Global Technologies, Inc.
    Inventor: Graeme Stewart
  • Patent number: 8235098
    Abstract: A flat tube for a heat exchanger having a stack of such flat tubes. The flat tube has a plurality of spaced-apart dimples formed on each of its opposite faces. At least some of the dimples on each face have an elongate plan shape, at least some of the elongate dimples being obliquely oriented such that their major axes form oblique angles with a longitudinal axis of the tube. The obliquely oriented elongate dimples are positioned such that when two of the tubes are stacked, the obliquely oriented elongate dimples on opposing faces of the tubes contact one another and the major axes of each contacting pair of elongate dimples are non-parallel to each other. Each contacting pair of elongate dimples of adjacent tubes thus forms a “cross” or “X”.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: August 7, 2012
    Assignee: Honeywell International Inc.
    Inventor: Keith Agee
  • Patent number: 8215380
    Abstract: The present invention relates to a hot water heat transfer pipe that exchanges heat between its interior and exterior. A plurality of projections, each having a height in the range of 0.8-2.0 mm or 0.1-0.25 times the inner diameter, is provided in at least one part of an inner surface of a portion of the heat transfer pipe positioned in a section where the Reynolds number of the fluid flowing in the interior is less than 7,000 to improve the heat transfer performance in the low Reynolds number zone and minimize pressure loss inside the pipe.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: July 10, 2012
    Assignees: Tsinghua University, Daikin Industries, Ltd.
    Inventors: Zhi xin Li, Ji an Meng, Mitsuharu Numata, Kazushige Kasai
  • Patent number: 8201621
    Abstract: A hollow passage in a machine element for enhancing the heat exchanging properties between the machine element and a fluid flowing through the hollow passage; the hollow passage including a helicoidal groove. In some embodiments, the machine element comprises a heated machine element and the fluid comprises a coolant. In some embodiments, the machine element comprises a stator blade or a rotor blade of a gas turbine engine and the coolant comprises compressed air. In some embodiments, the helicoidal groove comprises a depression in an outer wall of the hollow passage that extends axially along the hollow passage to form a helicoidal or swirling path.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: June 19, 2012
    Assignee: General Electric Company
    Inventor: Anca Hatman
  • Patent number: 8129662
    Abstract: A portable heater (100) is provided. The portable heater (100) comprises an air inlet (108) and an air outlet (118). The portable heater (100) also comprises a heating chamber (115) including one or more heating elements (230). A preheating chamber (114) is provided that is located between the air inlet (108) and a heating chamber inlet (116).
    Type: Grant
    Filed: January 6, 2009
    Date of Patent: March 6, 2012
    Assignee: Reliable Products International
    Inventors: Norman Cameron, Dennis Cook
  • Patent number: 8122856
    Abstract: Disclosed is a steam generator pipe which can be produced in a simple and economical manner and which has a particularly good heat transitional behavior having a large band width with various operational conditions. According to the invention, at least one insert is arranged in the inner chamber of the pipe in order to form a swirl-generating inner profile. The insert comprises a plurality of wires which wind, in a screw-like manner, along the inner wall of the pipe in the form of a multi-path thread.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: February 28, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Joachim Franke, Oliver Herbst, Holger Schmidt
  • Patent number: 8057047
    Abstract: A heat radiation structure for a portable micro projector that enables efficient radiation of heat generated therein. A projector module irradiates light of high intensity using a lamp to project an image to an external screen. A thermally conductive plate having a plate-like shape, the projector module being attached to one surface of the thermally conductive plate to transfer heat generated in the projector module. A heat radiation case to which the thermally conductive plate to which the projector module is attached is coupled therein to emit the heat transferred through the thermally conductive plate outside.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: November 15, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong Kwan Kim, Du Chang Heo, Jung Kee Lee
  • Patent number: 8059254
    Abstract: A transmissive beam steering aperture includes a common superstrate provided from an optical material and having first and second opposing surfaces with at least one of the first and second surfaces having an electrode coating provided thereon to provide the at least one surface as a common electrode surface and having a first plurality of electrically isolated common electrodes. One or more electrode containing substrates is disposed over respective ones of the first plurality of electrically isolated common electrodes to form one or more one liquid crystal (LC) cells. In one embodiment, the transmissive beam steering aperture is used as an aperture in an optical phased array.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: November 15, 2011
    Assignee: Raytheon Company
    Inventors: Robert D. O'Shea, Michael R. Benoit
  • Patent number: 8056616
    Abstract: An exhaust heat recovery apparatus includes an evaporation unit and a condensation unit communicated with the evaporation unit such that an operation fluid circulates therein. The evaporation unit is disposed in a first fluid passage through which a first fluid flows, and performs heat exchange between the first fluid and the operation fluid, thereby evaporating the operation fluid. The condensation unit is disposed in a second fluid passage through which a second fluid flows, and performs heat exchange between the second fluid and the operation fluid. The exhaust heat recovery apparatus further includes a wet area increasing member in a tube of the evaporation unit for increasing a wet area of the operation fluid due to surface tension of the operation fluid. The wet area increasing member is disposed adjacent to an inner surface of the tube and has extension surfaces extending in directions intersecting with the inner surface.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: November 15, 2011
    Assignee: Denso Corporation
    Inventors: Masashi Miyagawa, Kimio Kohara
  • Patent number: 8037930
    Abstract: A tube is composed of a first plate and a second plate which are opposed and engaged with each other. In a first region on both end sides of the tube, the first plate is formed into a shape in which an edge portion of the first plate is laid along a bent portion of the second plate so that an outer wall face of the tube forms a continuous face. In a second region of the tube, the first plate is formed into a shape in which the edge portion of the first plate is laid between the edge portion of the second plate and the bent portion of the second plate.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: October 18, 2011
    Assignee: Denso Corporation
    Inventors: Haruhiko Watanabe, Yuuji Sako, Kyoujirou Nakata
  • Patent number: 7963318
    Abstract: A finned tube for the thermal cracking of hydrocarbons in the presence of steam is defined by a tube axis and includes a plurality of inner fins. The fins are inclined at an angle of 20° to 40° in relation to the tube axis and have a flank angle of 16° to 25°.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: June 21, 2011
    Assignee: Schmidt + Clemens GmbH + Co., KG
    Inventors: Peter Wölpert, Benno Ganser, Dietlinde Jakobi, Rolf Kirchheiner
  • Patent number: 7913750
    Abstract: A heat exchanger assembly includes an upper and lower manifold. A plurality of tubes have flat sides and extend between the upper and lower manifold. A plurality of fins extend back and forth between and along the flat sides of adjacent ones of the tubes forming a continuous serpentine path. Each of the fins include a plurality of legs that extend between the adjacent ones of the tubes. A plurality of end portions extend along the tube sides so that adjacent legs are connected by one of the end portions to define a tube space between said adjacent legs. Each of the tubes include a plurality of spaced protrusions extending outwardly from both of the flat sides of said tubes into the tube space between the legs. A plurality of spaced projections extend inwardly from said end portions of said fins between said legs for interrupting air flow.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: March 29, 2011
    Assignee: Delphi Technologies, Inc.
    Inventors: Lin-Jie Huang, Laurent Art
  • Patent number: 7878233
    Abstract: An air-to-air aftercooler may include at least one tube body configured to direct a flow of charged air, wherein the at least one tube body includes a first material. The air-to-air aftercooler may also include a header assembly coupled to ends of the at least one tube body. The header assembly may include a second different material.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: February 1, 2011
    Assignee: Caterpillar Inc
    Inventors: Kent C. Bates, Jiubo Ma, Rishabh Sinha
  • Patent number: 7814898
    Abstract: A high capacity snow melting apparatus has a hopper with one or a plurality of dedicated heater/blower units coupled to a plurality of commingled heat radiant conduits for contact with snow, ice and water, and manifolds connected to the conduits for additional heat exchange and to direct heated air onto snow in the hopper. Terminal sections of the conduits are elevated to an upper region of the hopper and have downwardly directed exhaust ports for substantial and efficient preheating of new snow loads. Heat exchanger passages through the heated air conduits allow water to flow in the path of heated air in the conduits to substantially increase snow and ice melting efficiency of the conduits. A water bath in the bottom of the hopper is level controlled to cover the conduits and drain water from the hopper.
    Type: Grant
    Filed: August 8, 2005
    Date of Patent: October 19, 2010
    Assignee: Snow Dragon LLC
    Inventor: Kenneth F. Rumbaugh
  • Patent number: 7748438
    Abstract: A heat exchanger for medical use, comprising a tube bundle formed by a plurality of tubes having a straight axis for the conveyance of a primary fluid, which are embedded at their ends in disks located at the end faces of an outer jacket which is adapted to delimit, together with the disks, a portion of space for the containment of the tube bundle which is designed to be crossed by a secondary fluid, each tube having, at least at a portion of its length, a plurality of consecutive crimps adapted to determine a progressive variation of the shape of the passage section.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: July 6, 2010
    Assignee: Eurosets S.R.L.
    Inventors: Nicola Ghelli, Edgardo Costa Maianti, Roberto Balanzoni
  • Patent number: 7726345
    Abstract: A flexible cable may include an elongated shaped strip helically wound around itself to form a generally tubular body having at least one interior passageway and at least one conductor at least partially disposed within the interior passageway. The elongated shaped strip may include a non-rectangular cross-sectional thickness having a central portion disposed between a first and a second end portion. The first and second end portions may extend generally outwardly from the central portion from generally opposite sides. At least a portion of the central portion may include a cross-sectional thickness TC which is less than a maximum cross-sectional thickness TM of the elongated shaped strip. The first and second end portions may include a first and a second cross-section thickness TS1, TS2, respectively, wherein at least one of the first and second cross-section thicknesses TS1, TS2 is greater than the cross-sectional thickness TC.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: June 1, 2010
    Inventor: Allan Stikeleather
  • Publication number: 20100043442
    Abstract: Disclosed is a fin tube for thermal energy transfer of turbomachine exhaust including a tube disposable in an exhaust stream of a turbomachine and a plurality of fins extending from an outer surface of the tube. Each fin includes a plurality of adjacent fin segments which are separated by a serration. At least one fin segment of the plurality of fin segments includes at least one dimple thereon. The at least one dimple increases a turbulence of exhaust flow across the at least one fin segment and increases a surface area of the at least one fin segment thereby increasing a thermal energy transfer capability of the fin tube. Further disclosed is a combined cycle power plant utilizing the fin tube and a method for operating the combined cycle power plant.
    Type: Application
    Filed: August 19, 2008
    Publication date: February 25, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Hua Zhang, Sal Albert Leone, Thomas Francis Taylor
  • Patent number: 7637012
    Abstract: A method of forming a plurality of protrusions on the inner surface of a tube to reduce tube side resistance and improve overall heat transfer performance. The method includes cutting through ridges on the inner surface of the tube to create ridge layers and lifting the ridge layers to form the protrusions. In this way, the protrusions are formed without removal of metal from the inner surface of the tube, thereby eliminating debris which can damage the equipment in which the tubes are used.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: December 29, 2009
    Assignee: Wolverine Tube, Inc.
    Inventors: Petur Thors, Nikolai Zoubkov