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4842049 Heat exchanging apparatus for cooling and condensing by evaporation
Heat Recover.;" St,stems & CHP Vol. 10, No. 3, pp. i-xviii, 1990 Printed in Great Britain
08904332/90 $3.00 + .00 Pergamon Press pie
NEW PATENTS
This Section contains abstracts and, where appropriate, illustrations of recently issued United States patents and published patent applications filed from over 30 countries under the Patent Cooperation Treaty. This information was obtained from recent additions to the Pergamon PATSEARCH ~ online database in accordance with interest profiles developed by the Editors. Further information about Pergamon PATSEARCH~ can be obtained from Pergamon Orbit InfoLine Inc., 8000 Westpark Drive, McLean, Virginia 22102 U.S.A. Copies of complete patents announced in this Section are available from Pergamon Orbit InfoLine Inc. for $8 per copy. Payment with order is required. Orders outside North America add $2 for air postage. Order by patent number for Pergamon Orbit In'foLine only.
4842045 EXPANDABLE RADIATOR Donald L Reinmuller assigned to The United States of America as represented by the Secretary of the Air Force An expandable heat rejection system for radiating heat from a source of heat on a spacecraft or like vehicle is described and comprises a fluid heat exchange medium in operative circulating heat exchange relationship with the source for absorbing heat by evaporation of a liquid phase or the medium, an elongate inflatable sleeve defining an expandable and collapsible volume closed at a first end and including an inlet and outlet at a second end and further defining a condensation surface on the inner surface of the sleeve and a heat radiating surface on the outer surface of the sleeve, a reel attachable to the vehicle and operatively attached to the first end of the sleeve for selectively winding and unwinding the sleeve in response to pressure generated within the system.
4842049 HEAT EXCHANGING APPARATUS FOR COOLING AND CONDENSING BY EVAPORATION Diego E F Dodds, Buenos Aires, Argentina assigned to Dodds-Oboler Inc A heat exchange apparatus having a first header for receiving fluid from a source, flexible thinwalled 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 ex-
change zone. Support elements are provided, supporting and rigidifying the flexible thinwalled 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.
4842053 HEAT EXCHANGER USING HEAT PIPES Motohar Yatsuhashi, Masataka Mochizuki, Shinich Sugihara, Funabashi, Japan assigned to Fujikura Ltd; Doryokuro Kakunenryo Kaihatsu Jigyod Herein disclosed is a heat pipe type heat exchanger which comprises: a container for conraining a first heating medium therein or causing the same to flow therethrough; at least one heat pipe extending liquid-tight with a substantially horizontal axis through the container; and a tube extending gas-tight and axially through the heat pipe for causing a second heating medium to flow therethrough, whereby the heat exchange is effected between the first and second heating mediums through the walls of the heat pipe and the tube. In case a plurality of heat pipes are provided, the individual tubes extending axially through the corresponding heat pipes are connected at their ends to each other by means of bends such that they make a zigzag or meandering piping. This retains a wide heat exchanging area. Since the first and second heating mediums to have their heats exchanged with each other are isolated from each other by the heat pipes and the tubes, they are kept away from directly contacting or mixing with each other even if pin holes are formed in either the heat pipes or the tubes. This structure is effective for the heat exchanger between metallic sodium
08904332/90 $3.00 + .00 Pergamon Press pie
NEW PATENTS
This Section contains abstracts and, where appropriate, illustrations of recently issued United States patents and published patent applications filed from over 30 countries under the Patent Cooperation Treaty. This information was obtained from recent additions to the Pergamon PATSEARCH ~ online database in accordance with interest profiles developed by the Editors. Further information about Pergamon PATSEARCH~ can be obtained from Pergamon Orbit InfoLine Inc., 8000 Westpark Drive, McLean, Virginia 22102 U.S.A. Copies of complete patents announced in this Section are available from Pergamon Orbit InfoLine Inc. for $8 per copy. Payment with order is required. Orders outside North America add $2 for air postage. Order by patent number for Pergamon Orbit In'foLine only.
4842045 EXPANDABLE RADIATOR Donald L Reinmuller assigned to The United States of America as represented by the Secretary of the Air Force An expandable heat rejection system for radiating heat from a source of heat on a spacecraft or like vehicle is described and comprises a fluid heat exchange medium in operative circulating heat exchange relationship with the source for absorbing heat by evaporation of a liquid phase or the medium, an elongate inflatable sleeve defining an expandable and collapsible volume closed at a first end and including an inlet and outlet at a second end and further defining a condensation surface on the inner surface of the sleeve and a heat radiating surface on the outer surface of the sleeve, a reel attachable to the vehicle and operatively attached to the first end of the sleeve for selectively winding and unwinding the sleeve in response to pressure generated within the system.
4842049 HEAT EXCHANGING APPARATUS FOR COOLING AND CONDENSING BY EVAPORATION Diego E F Dodds, Buenos Aires, Argentina assigned to Dodds-Oboler Inc A heat exchange apparatus having a first header for receiving fluid from a source, flexible thinwalled 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 ex-
change zone. Support elements are provided, supporting and rigidifying the flexible thinwalled 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.
4842053 HEAT EXCHANGER USING HEAT PIPES Motohar Yatsuhashi, Masataka Mochizuki, Shinich Sugihara, Funabashi, Japan assigned to Fujikura Ltd; Doryokuro Kakunenryo Kaihatsu Jigyod Herein disclosed is a heat pipe type heat exchanger which comprises: a container for conraining a first heating medium therein or causing the same to flow therethrough; at least one heat pipe extending liquid-tight with a substantially horizontal axis through the container; and a tube extending gas-tight and axially through the heat pipe for causing a second heating medium to flow therethrough, whereby the heat exchange is effected between the first and second heating mediums through the walls of the heat pipe and the tube. In case a plurality of heat pipes are provided, the individual tubes extending axially through the corresponding heat pipes are connected at their ends to each other by means of bends such that they make a zigzag or meandering piping. This retains a wide heat exchanging area. Since the first and second heating mediums to have their heats exchanged with each other are isolated from each other by the heat pipes and the tubes, they are kept away from directly contacting or mixing with each other even if pin holes are formed in either the heat pipes or the tubes. This structure is effective for the heat exchanger between metallic sodium