Abstract: A heat transfer device for installation in a system having a heat generating element within the system away from which heat is to be transferred is described. The heat transfer device includes a heat pipe having a first portion, a second portion, and a working fluid contained within the heat pipe for transferring heat from the first portion to the second portion. The first portion is disposed in proximity with the heat generating element. The second portion is coupled to the first portion. At least part of the second portion is disposed outside the system to dissipate heat from the heat generating element and the second portion may be variably extended outside the system.

Abstract: A service water heating unit (2), provided for use in a heating installation, includes at least one heat exchanger (6), defining a first flow path (10) for a heating medium and a second flow path (12) for service water to be heated. The two flow paths (10, 12) are guided relative to one another in a first portion (A) in a countercurrent arrangement with directions of flow oriented in opposite directions, and in a second portion (B) connecting downstream, viewed in the direction of flow of the service water, in a co-current arrangement with directions of flow oriented in the same direction.

Abstract: A refrigerant distribution unit for an air conditioner, includes: a pipe unit for distributing a refrigerant from a refrigerant pipe on an outdoor unit to branch refrigerant pipes on indoor units; and a main body including: upper and lower seal case which include first edge portions around the upper seal case and second edge portions around the lower seal case, and engage the second edge portions with the first edge portions for sealing an inside of the first and second seal cases to store the pipe unit; upper and lower insulator cases for covering the upper and lower seal cases; and upper and lower case constituting a contour of the refrigerant distribution unit. The pipe unit is fixed to a pipe mounting portion of the upper seal case using a pipe holder and a pipe hanging bracket.

Abstract: A thermostatic valve aggregate for a motor vehicle cooling system, having a valve housing containing a valve seat, further having an expansible drive element which is configured in the valve housing and is coupled to a valve element, and a spring biasing the valve element against the valve seat, one coolant hookup on each side of the valve seat, a bypass valve element prestressed by a bypass valve spring in the direction of a bypass valve seat in order to selectively link one bypass hookup to the valve housing to one of the other hookups, characterized in that an electromagnet is mounted on the valve housing and comprises a core extending as far as the bypass valve seat, in that the bypass valve element is fitted with a magnetically effective armature element resting against or nearly reaching the core when the bypass valve rests against the bypass valve seat.

Abstract: A vehicular battery cooling device in which a rear seat is disposed on the upper surface of a rear floor panel, a battery pack is disposed on the upper surface of the rear floor panel at the rear of the rear seat, and an air intake duct extending from the battery pack to the vehicle front is installed between the cushion part of the rear seat and the rear floor panel. A concave part extending in the vehicle longitudinal direction is formed in the lower surface of the cushion part in the central portion in the vehicle width direction, an opening is formed at the front end of the air intake duct, and the air intake duct is formed so as to have a strength capable of supporting the weight of a passenger and is brought into contact with the lower surface of the cushion part.

Abstract: A method for controlling power consumption of a compressor of an automotive vehicle climate system may include identifying an energy source providing energy to power the compressor and selecting an operating parameter of the climate system based on the identified energy source to control power consumption of the compressor.

Abstract: A control system is disclosed for a house HVAC system including a thermostat, supply and return air plenums and an HVAC fan. The thermostat selectively controls the HVAC system to maintain the desired temperature and resulting in a variable operating cycle period between successive on times. A fresh air intake duct is between an exterior intake vent and the return air plenum. A stale air exhaust duct is between the return air plenum and an exterior exhaust vent. The control system comprises a controllable intake damper in the fresh air intake duct and a controllable exhaust damper in the stale air exhaust duct. A controller is operatively connected to the house HVAC fan and the controllable dampers. The controller predicts an upcoming cycle period for a next successive operating cycle and calculates a fresh air vent time.

Abstract: A power steering waste heat recovery system for a vehicle and method of operating is disclosed. The system may include a power steering system and a waste heat absorption system. The power steering system may include a power steering pump, a liquid-to-liquid heat exchanger located downstream of the power steering pump and configured to allow power steering fluid flow therethrough, and a steering rack operatively engaging the heat exchanger to receive the power steering fluid therefrom. The waste heat absorption system may include an auxiliary heater loop configured to direct a liquid through the heat exchanger; and an automatically controllable heat control valve having an inlet, a first outlet for directing the liquid to bypass the auxiliary heater loop, and a second outlet for directing the liquid through the heat exchanger in the auxiliary heater loop.

Abstract: A climate control system for a vehicle having a plurality of modes includes an evaporator having a downstream face. The system also includes at least one blower that blows air across the evaporator. The air downstream of the blower has a pressure distribution defined generally along the downstream face. The pressure distribution along the downstream face is variable depending on which of the plurality of modes the climate control system is currently set.

Abstract: A rear HVAC system for a motor vehicle including a housing, an airflow generator, an evaporator, and a heater. The housing is configured to be mounted adjacent to a rear wheel well and a D-pillar of the motor vehicle. The evaporator and the heater are mounted within the housing. Both the evaporator and the heater are between a vehicle floor and a line that is both generally parallel to the floor and tangent to an upper surface of the rear wheel well when the housing is installed in the vehicle.

Abstract: A heat exchanger for an aircraft engine includes: a body including a plate-like first member and a plate-like second member that are stacked in a thickness direction of the first and second members and joined together, and a channel which is defined in the body and in which the cooling target fluid flows; and a corrugated fin plate disposed in the channel in the body. The body is bent along a curved surface to which the heat exchanger is attached. A plurality of heat dissipation fins stand on an outer surface of at least one of the first member or the second member.

Abstract: A heat sink or heat transfer device particularly for integrated circuits, uses a phase change working fluid in a cyclic flow path having at least one evaporator that serves multiple heat sources. The evaporator can be an integral vessel made of thermally conductive material to which the multiple heat sources are coupled, preferably at evaporation points that are placed on opposite sides of a fluid reservoir for the liquid phase of the working fluid that feeds the evaporation points via capillary flow through a wicking material.

Abstract: An air conditioning system for a vehicle includes a heat exchanger, a case clamping an outer peripheral part of the heat exchanger in its thickness direction, and an elastic body disposed at the outer peripheral part of the heat exchanger between the case and the heat exchange. The opposite side of the exchanger is held directly by the case. The elastic body is compressively deformed between the case and the heat exchanger to clamp the heat exchanger. A region of the outer peripheral part of the exchanger includes a planar portion at least on one side of the exchanger. The case includes an air stop rib at a position of the case opposed to the planar portion in the thickness direction of the exchanger. The air stop rib is located adjacent to the planar portion to limit an air leak.

Abstract: A loop heat pipe for dissipating heat generated by a heat source includes a pipe, a first capillary structure, a second capillary structure, and a working fluid in the pipe. The pipe has a condensing section, an evaporating section adapted to contact the heat source thermally, and an obstructing section adjacent to the evaporating section. The first capillary structure on an inner surface of the pipe is disposed between the condensing section and the obstructing section. The second capillary structure has a first and a second parts connected with each other. The first part on the inner surface of the pipe is extended from the evaporating section to the obstructing section. The second part passing through the obstructing section is extended from the obstructing section to the condensing section. A space between the first capillary structure and the second part of the second capillary structure defines a compensation room.

Abstract: A plate (20) for a heat transfer tube (4) made from a metal sheet includes a peripheral outer wall (10) and having at least one first cavity (24) and least one second cavity (26) respectively formed in the metal sheet. The first cavity (24) is in contact with the peripheral outer wall (10) and the second cavity (26) is arranged at a distance from the outer wall (10). A heat transfer tube (4) of a heat exchanger (1) includes a pair of such plates (20) and a heat exchanger (1) includes a plurality of such tubes (4).

Abstract: Coated membranes comprise a porous desiccant-loaded polymer substrate that is coated on one surface with a thin layer of water permeable polymer. Such membranes are particularly suitable for use in enthalpy exchangers and other applications involving exchange of moisture and optionally heat between gas streams with little or no mixing of the gas streams through the membrane. Such membranes have favorable heat and humidity transfer properties, have suitable mechanical properties, are resistant to the crossover of gases when the membranes are either wet or dry, and are generally low cost.

Abstract: A vehicle thermal management system is provided that includes two or more heat exchangers configured in a non-stacked arrangement, where separate air inlets corresponding to each of the heat exchangers allow a direct intake of ambient air. Active louver systems consisting of sets of adjustable louvers and a control actuator are used to control and regulate air flowing directly into one or more of the heat exchangers, where the adjustable louvers are either adjustable between two positions, i.e., opened and closed, or adjustable over a range of positions. Air ducts may be used to couple the output from one heat exchanger to the input of a different heat exchanger.

Abstract: A heat exchanger has a plurality of intermediate plates arranged one atop the other to form a stack having first and second ends. At least one first fluid channel through conducts a first fluid and at least one second fluid channel through conducts a second fluid. The intermediate plates are geometrically configured to define at least a portion of each of the first and second fluid channels. An end plate is arranged on one of the ends of the stack and a first inlet opening communicates with the first fluid channel for introducing the first fluid and a first outlet opening communicates with the first fluid channel for conducting the first fluid out of the heat exchanger. A second inlet opening communicates with the second fluid channel for introducing the second fluid and a second outlet opening communicates with the second fluid channel for conducting the second fluid away from the heat exchanger. The end plate has at least one expansion zone for reducing the stiffness thereof.

Abstract: Heat is indirectly transferred between a process fluid and ambient air in apparatus that includes an evaporative heat transfer cell operative in a wet mode or a dry mode, a dry heat transfer cell and a fan. The air may bypass the dry heat transfer cell to flow through a first air passage or may flow through a second air passage through the dry heat transfer cell and in either event, then through the evaporative heat transfer cell. The air may partially flow through and partially bypass the dry heat transfer cell, and then through the evaporative heat transfer cell. The evaporative heat transfer cell optionally may include a direct contact evaporative heat exchanger.

Abstract: A cooling device includes: a cooling fan; a shroud provided at an outer circumferential side of the cooling fan; an inner circumferential wall provided on the shroud and adjacent to the outer circumference of the cooling fan so as to surround the cooling fan; an outer circumferential wall provided to surround the inner circumferential wall. An air-flow-direction downstream side end of the outer circumferential wall is positioned at a further downstream position in an air flow direction than an air-flow-direction downstream side end of the inner circumferential wall. The cooling fan is rotatable within a space provided on a radially inner side of the inner circumferential wall. The air-flow-direction downstream side end of the outer circumferential wall is provided at a further upstream position in the air flow direction than an air-flow-direction downstream side end of the cooling fan.