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4971139 Heat tube device
328
New Patents
4971138
4971141
BLADDER T H E R M O S Y P H O N
JET S T R E A M INJECTION SYSTEM
Andre Lowenstein assigned to Gas Research Institute A thermosyphon heat exchanger having evaporator and condenser sections is provided which includes an internal bladder capable of defining an internal volume which is substantially equivalent to the internal volume of the thermosyphon, the bladder containing working fluid which acts to transfer heat being delivered to the evaporator section of the thermosyphon to the condenser section of the thermosyphon. The thermosyphon provided, including the internal bladder, is more easily constructed than known thermosyphons due the ease of pressure relief and there being no requirement of extreme cleanliness within the thermosyphon. Also provided is a method of constructing a thermosyphon in accordance with present thermosyphon.
Keisuk Kasahara, Toshio Aihara, Shigena Maruyama, Tokyo, Japan assigned to Kabushiki Kaisha Maekawa Seisakusho A jet stream injection device for use in a heat exchanger of a fluidized-bed type in which a flat jet stream is injected toward a heat transmission coil of the heat exchanger from below this coil so that is runs along said cell so as to form a mixedphase flow of a gas and solid particles around the heat transmission coil. The jet stream injection device has a net with meshes smaller than the size of the particles of a fluidized bed provided over an opening provided on the upstream side of a jet stream generating slit-shaped injection port element. The opening has a larger passage sectional area than the injection port element.
4971142
4971139 HEAT TUBE DEVICE Mukesh Khattar assigned to The United States of America as represented by the Administrator of the National Aeronautics and Space Administration The present invention discloses a heat tube device through which a working fluid can be circulated to transfer heat to air in a conventional air conditioning system. The heat tube device is disposable about a conventional cooling coil of the air conditioning system and includes a plurality of substantially U-shaped tubes connected to a support structure. The support structure includes members for allowing the heat tube device to be readily positioned about the cooling coil. An actuatable adjustment device is connected to the U-shaped tubes for allowing, upon actuation thereof, for the heat tubes to be simultaneously rotated relative to the cooling coil for allowing the heat transfer from the heat tube device to air in the air conditioning system to be selectively varied.
HEAT EXCHANGER A N D HEAT PIPE THEREFOR Thomas Mergler assigned to The Air Preheater Company Inc A heat pipe is formed of two elongated tubular members each having an open end and a closed end and joined at their open ends in gas-tight relationship by means of an annular collar. The annular collar is adapted at one end to fit over the open end of one of the elongated tubular members and at its other end to fit over the open end of other of the elongated tubular members, with the ends of the annular collar being sealably secured, such as by welding, bonding, threading or otherwise, to their respective tubular members thereby providing a gas-tight enclosure within the interconnected tubular which constitutes the working chamber of the heat pipe. Advantageously, the two elongated tubular members may be formed of dissimilar materials. For example, one tubular member may be formed of a more expensive material having a relatively high corrosion resistance and the other tubular member may be formed of a less expensive material having a relatively low corrosion resistance.
New Patents
4971138
4971141
BLADDER T H E R M O S Y P H O N
JET S T R E A M INJECTION SYSTEM
Andre Lowenstein assigned to Gas Research Institute A thermosyphon heat exchanger having evaporator and condenser sections is provided which includes an internal bladder capable of defining an internal volume which is substantially equivalent to the internal volume of the thermosyphon, the bladder containing working fluid which acts to transfer heat being delivered to the evaporator section of the thermosyphon to the condenser section of the thermosyphon. The thermosyphon provided, including the internal bladder, is more easily constructed than known thermosyphons due the ease of pressure relief and there being no requirement of extreme cleanliness within the thermosyphon. Also provided is a method of constructing a thermosyphon in accordance with present thermosyphon.
Keisuk Kasahara, Toshio Aihara, Shigena Maruyama, Tokyo, Japan assigned to Kabushiki Kaisha Maekawa Seisakusho A jet stream injection device for use in a heat exchanger of a fluidized-bed type in which a flat jet stream is injected toward a heat transmission coil of the heat exchanger from below this coil so that is runs along said cell so as to form a mixedphase flow of a gas and solid particles around the heat transmission coil. The jet stream injection device has a net with meshes smaller than the size of the particles of a fluidized bed provided over an opening provided on the upstream side of a jet stream generating slit-shaped injection port element. The opening has a larger passage sectional area than the injection port element.
4971142
4971139 HEAT TUBE DEVICE Mukesh Khattar assigned to The United States of America as represented by the Administrator of the National Aeronautics and Space Administration The present invention discloses a heat tube device through which a working fluid can be circulated to transfer heat to air in a conventional air conditioning system. The heat tube device is disposable about a conventional cooling coil of the air conditioning system and includes a plurality of substantially U-shaped tubes connected to a support structure. The support structure includes members for allowing the heat tube device to be readily positioned about the cooling coil. An actuatable adjustment device is connected to the U-shaped tubes for allowing, upon actuation thereof, for the heat tubes to be simultaneously rotated relative to the cooling coil for allowing the heat transfer from the heat tube device to air in the air conditioning system to be selectively varied.
HEAT EXCHANGER A N D HEAT PIPE THEREFOR Thomas Mergler assigned to The Air Preheater Company Inc A heat pipe is formed of two elongated tubular members each having an open end and a closed end and joined at their open ends in gas-tight relationship by means of an annular collar. The annular collar is adapted at one end to fit over the open end of one of the elongated tubular members and at its other end to fit over the open end of other of the elongated tubular members, with the ends of the annular collar being sealably secured, such as by welding, bonding, threading or otherwise, to their respective tubular members thereby providing a gas-tight enclosure within the interconnected tubular which constitutes the working chamber of the heat pipe. Advantageously, the two elongated tubular members may be formed of dissimilar materials. For example, one tubular member may be formed of a more expensive material having a relatively high corrosion resistance and the other tubular member may be formed of a less expensive material having a relatively low corrosion resistance.