Abstract: A reversing heat exchanger of the plate and fin type having multiple aluminum parting sheets in a stacked arrangement with corrugated fins separating the sheets to form multiple flow paths, means for closing the ends of the sheets, an input manifold arrangement of headers for the warm end of the exchanger and an output manifold arrangement for the cold end of the exchanger with the input air feed stream header and the waste gas exhaust header having an alloy of zinc and aluminum coated on the inside surface for providing corrosion protection to the stack.

Abstract: A horizontal feedwater heater for use in heat power stations, of the type having a shell, a plurality of U-bent heat transfer tubes extended in the longitudinal direction of the shell and a vent tube extended in the longitudinal direction of the shell substantially at the center of the latter and adapted for extracting and discharging non-condensed gas. The feedwater heater has a baffle disposed at each side of the vent tube and having a horizontal plate portion extended horizontally from the vent tube and an inclined plate portion inclined downwardly from the end of the horizontal plate portion at an obtuse angle to the latter.

Abstract: Waste water heat transfer apparatus (10) is disclosed in which the waste hot water from residential or commercial uses such as washing, etc., is passed into a separate drain (24) and then into a heat exchanger (17) which includes a waste water conduit (40) therein, and then to the sewer drain (29). A supply water conduit (70) extends through the heat exchanger (11) generally paralleling the waste water conduit (40) and has fresh water run therethrough in a direction opposite to that of the flow of waste water to an outlet end, after which the supply water is provided to a water heater (20). The heat exchanger interior is filled with a heat transfer liquid (39), and is so divided by baffles (75, 76) that a temperature gradient is formed in the heat transfer liquid adjacent to the waste water conduit (40), with the liquid being warmest adjacent the inlet (68) of the waste water conduit and decreasing in temperature toward the outlet (69) of the conduit.

Abstract: The specification discloses a heat exchanger of particular construction and methods of using same, the exchanger having pairs of sealing elements through which a circulating fluid is passed. The circulating fluid can be used for leak detection, cooling, or sterilization. The exchanger has a plurality of coaxially arranged tubes of thermally conductive material, the tubes being spaced apart radially by a pair of end manifolds to form annular fluid flow passages at least one of the manifolds having first and second sealing elements for forming seals between the manifold and the ends of the tubes, circumferential fluid passages being defined between the first and second sealing elements, circulating fluid inlet means for admitting a circulating fluid at first locations in the passages, and circulating fluid outlet means for discharge of said circulating fluid at second locations in said passages, the first and second locations being circumferentially spaced for each passage.

Abstract: An air conditioner for an automotive vehicle having (1) a duct having at its one end an air inlet, at the upper part of its other end a ventilation outlet, and at the lower part of its other end a floor outlet linked to a defroster outlet; (2) a blower disposed at the air inlet for introducing air into the duct; (3) an evaporator disposed downstream of the duct for cooling the air introduced by the blower; (4) a heater core disposed downstream of the evaporator whose upper side is provided with a first bypass for bypassing the cooled air from the evaporator; (5) an air mixing door disposed upstream of the heater core for adjusting the amount of air passing through the heater core; (6) an air mixing chamber disposed downstream of the heater core and first bypass for mixing the air from the first bypass and heater core, the ratio of the air depending on the angle of the air mixing door; (7) a second bypass disposed between the heater core and the floor outlet for introducing part of the heated air from the heat

Abstract: A thin-walled resilient sleeve is disposed between each group of support plates and a pipe at the center of the pipe coils. One end of the sleeve is secured to the central pipe while the other end of the sleeve is secured to the support plates.The sleeves enable the support plates, which in operation become hotter than the pipe coils, to expand towards the central pipe, with a consequent appreciable reduction in heat expansion of the pipe coils and therefore in bending stressing thereof.

Abstract: A heat exchanger for an engine cooling circuit, comprising first and second liquid circuits formed in parallel in the exchanger, and a temperature sensitive valve for controlling the flow of liquid through said circuits, wherein passages formed between both circuits are adapted to be closed and opened by a single sealing member on which act the said valve and a return spring.

Abstract: Apparatus for condensing vapors at reduced pressure including a cooled vapor condenser having a liquid level sensor therein with a vacuum pump being connected by way of a control valve for drawing vapor from the vapor chamber of the condenser. The liquid level sensor opens and closes the control valve to control drawing of vapor from the vapor chamber in accordance with the level of liquid in the condenser.

Abstract: A method and apparatus to recover thermal energy from the exhaust air from a paint spray booth for painting of automobile chasses, whereby heat from the relatively warm exhaust air is transferred to the relatively cold supply air to the booth. The outgoing air is mixed with water or other heat-exchange liquid, and the liquid is then separated in a separation-chamber (7) adjacent the ventilation outlet (6) of the booth (5), and is circulated between the chamber and a heat exchanger (2'), through which the supply air flows.

Abstract: A coolant recirculating system permits water from a municipal source to be circulated continuously in a dry cleaning plant in order to perform necessary cooling and condensing operations. The water is permitted to be dumped from the closed system only upon exceeding a temperature at which its cooling function has reduced efficiency. An additional benefit of the inventive closed circulating coolant loop is that the preheated water may be employed to supply a boiler in the dry cleaning plant and also that the loop water may be utilized in the lavatory facilities of the dry cleaning plant and in the laundry facilities of such dry cleaning plant.

Abstract: A support structure for transmitting large forces between a superconducting magnet winding which is cooled to a very low temperature and an abutment which is at a higher temperature level and takes up the forces, especially in an energy storage device, contains support elements which point, at least approximately, in the direction of force transmission and between which stiffening elements are attached, and at least one sheet-like heat shield. This support structure has high buckling stiffness and nevertheless results in low losses due to heat transfer by making all support elements and all stiffening elements of the support structure of a really extended design formed in a honeycomb-like structure and using at least one plane of stiffening elements to form the heat shield which is kept at a predetermined intermediate temperature by means of a coolant conducted through cooling canals.

Abstract: The invention relates to heat exchange devices for cooling the wall and the refractory of a blast-furnace. Such a device comprises a body shaped substantially as a body of revolution and having first and second end walls and a curved wall extending therebetween, the first end wall being a heat-transfer wall, a supply port and a discharge port for heat-transfer fluid, the ports being spaced-apart radially, the supply port being adapted for tangentially supplying the heat-transfer fluid into the body and the discharge port being adapted for tangentially discharging the heat-transfer fluid from the body, so that, in use, the fluid flows between the ports in a spiral path over the inner surface of the first end wall, the body having no internal obstacle to such flow. (FIG.

Abstract: The process of protecting heat sensitive regions of textile material webs from damage during thermo-treatment by preliminarily subjecting such regions to a suitable cooling or chilling agent selectively applied to such regions in order to lower the temperature thereof sufficiently so that the ultimate elevation caused by the normal subsequent thermo-treatment will not be adequate to bring about damage to the heat sensitive regions.

Abstract: The invention is an improvement in the economical generation of energy by providing a system for utilizing the wave action of bodies of water, such as ocean waves. The system consists of a pair of floating units, each separately connected to a shaft member by a connecting arm, a ratchet-like gear affixed to the shaft member is indexed forward alternately or concurrently by spring loaded pawls affixed to each of the connecting arms from the floating units to the shaft members. The wave action alternately raising and lowering the floating units concurrently turns the ratchet-like gear through the action of the pawls. Thus, the turning shaft, properly geared can turn an electric generator, air compressor, or other device of generating another form of energy which can be used or stored for future use.

Abstract: A plate heat exchanger is provided which includes a plurality of plates mounted in abutting face-to-face relation. Interposed adjacent plates is a sealing gasket. The plates are held in assembled relation by an adjustable press. Each plate is provided with an extruded first section having second sections secured to opposite peripheral segments thereof. Each section is provided with broad opposed exterior surfaces. The first section has a plurality of internal passages formed therein defining first flow-paths for a first heat exchange medium. The opposed broad exterior surfaces of adjacent plates coact with the sealing gasket to define second flow-paths for a second heat exchange medium. The pressure exerted on the plates by the press to maintain same in abutting relation is determined by the maximum pressure generated by the second heat exchange medium within the second flow-paths during operation of the plate heat exchanger.

Abstract: In a heat exchanger for heat transfer between ammonia converter effluent recycle gases and water, a plurality of U-shaped tubes have their inlet and outlet ends connected to a tubesheet which divides the interior of a shell into a pressure chamber and a heat exchange chamber containing the tubes. The pressure chamber is divided into an inlet chamber and an outlet chamber with the cooled recycle gases flowing into the outlet chamber and cooling the inlet chamber. The tubes are formed of ferritic steel and are welded to the tubesheet. A tubular cladding of nitriding-resistant material extends through the tubesheet at the inlets to the tubes and spaces the recycle gases from the tubes at the inlet ends.