Abstract: The invention relates to a controlling method of the discharge of coolant medium, and more particularly to a controlling method of the discharge of coolant medium in the heat exchange wind box. By mainly controlling the discharge of coolant medium in the heat exchange wind box, it is able to directly control the volume of discharged coolant medium that supplies the circulation need of the heat exchange tube according to the variations of the target volumes of environmental heat energy in the freezing and air-conditioning area. Therefore, it increases the operation efficiency of the freezing and air-conditioning equipment and achieves the heat balance stability of the freezing and air-conditioning area. Furthermore, by saving the circulated volume of the coolant medium, it achieves the energy saving objective.

Abstract: An automotive air conditioning system includes: an air conditioning duct having an outlet; an evaporator; a heater core; an air mix door that divides air passing through the air conditioning duct into to pass through the heater core and to bypass the heater core; an outlet air temperature sensor; a control unit; a primary bypass passageway defined by the air mix door; a secondary bypass passageway different from the primary bypass passageway; and a cold air controlling door that controls an air flow rate in the secondary bypass passageway. The control unit sets an opening for the air mix door to obtain air conditioned to the target outlet air temperature when the cold air controlling door is opened to an initial opening and controls the opening to cause a temperature detected by the outlet air temperature sensor to approach a target outlet air temperature.

Abstract: An exhaust-gas heat recovery appliance having a heat-exchanger line and a bypass line and a heat exchanger being arranged in the region of the heat-exchanger line. At least one valve device, for the purpose of influencing the mass flow of exhaust gas, is provided in the heat-exchanger line and the bypass line. Further, at least the heat-exchanger line has a slope in the direction of flow of the exhaust gas in the installed position.

Abstract: An air conditioner includes a compressor for compressing refrigerant, an exterior heat exchanger for performing heat exchange between refrigerant and outside air, an interior heat exchanger for performing heat exchange between the refrigerant and air to be blown into the compartment, an ejector for decompressing high-pressure refrigerant, a heater core for heating air using a high-temperature fluid as a heating source, and a fluid-refrigerant heat exchanger that heats the fluid flowing to the heater core using high-temperature refrigerant discharged from the compressor as a heating source. In a dehumidifying and heating operation, refrigerant in the interior heat exchanger absorbs heat from air so that the air is cooled and dehumidified, and the dehumidified and cooled air can be further heated in the heater core by indirectly using the heating source from the high-temperature refrigerant.

Abstract: A heating and air-conditioning system has an auxiliary engine for heating and cooling of a vehicle while the primary engine of the vehicle is not operating. The vehicle has a sleeper compartment with a sleeper compartment air conditioning unit powered by the main engine. An auxiliary air conditioning system located exterior of the sleeper compartment is powered by the auxiliary engine. An auxiliary supply duct extends into the sleeper compartment and joins the duct of the sleeper compartment air conditioning unit. A valve operated by air pressure blocks air flow from the sleeper compartment air conditioning unit into the auxiliary duct while in the main position. In the auxiliary position, the valve blocks air flow from the auxiliary duct into the sleeper compartment air conditioning unit.

Abstract: A rotary compressor machine, such as a combustion air charger, includes a rotatable shaft (18) having at least one compressor wheel (20,22) thereon and disposed within a housing (12,14). A donut-shaped heat exchanger (36) is located within the housing (12,14) between the compressor wheel (22) and an outlet (32) from the housing and has radially inner and outer peripheries (40,42). The outer periphery (40) defines an inlet for the heat exchanger (36) for gas discharged by the compressor wheel (20). The heat exchanger is provided with radially inner and outer flow paths defined by tubes (92) and includes a combined manifold and tank (44) which is secured and sealed to a header plate (88) receiving the tubes (92). The combined manifold and tank (44) includes first, second and third axially spaced walls (96,98,100) with each having a central opening (110,112,114).

Abstract: In an air passage switching device using a film-type sliding door for an air-conditioning unit for a vehicle. A grid member is provided in an air passage to extend parallel with the sliding direction of a sliding door and divide an opening of the air passage into a plurality of smaller openings. The sliding door has a film member, a door plate supporting the film member, and elastic pressing means for pressing the film member against edge seal faces of the air passage. A grill spacing between the door plate and the end face of the grid member, is larger than an edge seal face spacing between the door plate and the edge seal faces.

Abstract: A cooling system is provided with a heat exchanger that has a thermally conductive tube over-molded with a plurality of thermally conductive fins. To form the heat exchanger, a thermally conductive tube is provided. Insert molding, over molding or injection molding is utilized to incorporate thermally conductive fins with the thermally conductive tubes. The molding process may also simultaneously create any required features, such as mounting features and fittings for tubing to be connected to the heat exchanger.

Abstract: In a vehicle air conditioner, a case member of an inside/outside air switching portion is disposed at an approximate center in an interior unit in a vehicle width direction, to define an air passage extending in the vehicle width direction. An outside air suction port is provided in the case member, and first and second openings are opened in the case member at both side ends of the air passage in the vehicle width direction. One of the first and second openings is used as an inside air suction port, and the other one thereof is used as an outlet passage port. In addition, the outlet passage port of the case member is coupled to a suction port of a blower through a connection duct.

Abstract: An air conditioner includes a compressor for compressing refrigerant, an exterior heat exchanger for performing heat exchange between refrigerant and outside air, an interior heat exchanger for performing heat exchange between the refrigerant and air to be blown into the compartment, a decompression unit for decompressing high-pressure refrigerant, and a heater that heats air using high-temperature refrigerant discharged from the compressor as a heating source. In a dehumidifying and heating operation, refrigerant in the interior heat exchanger absorbs heat from air so that the air is cooled and dehumidified, and the heater heats air having been dehumidified and cooled by using the heating source, so that low-humidity and high-temperature air is supplied into the compartment. The heater can be disposed to indirectly heat air by heating a fluid flowing through a heater core for heating air, or to directly heat air to be blown into the compartment.

Abstract: An air treatment module, in particular for thermal treatment of air to be introduced into the vehicle interior of a vehicle, includes a support arrangement to be fixed to a vehicle, a fan arrangement supported by the support arrangement, a first heat exchanger arrangement, supported on the support arrangement, for thermal treatment of air forwarded by the fan arrangement, further including a heating device and a second heat exchanger arrangement receiving heat from the heating device, the heating device and the second heat exchanger arrangement being supported on the support arrangement.

Abstract: A circulating path 12 is provided for circulating a heat transfer medium across the cooling section 6A and an exhaust heat exchanger 9. The circulating path 12 is communicated to an output heat exchanger which is mounted on a hot water storage. The heat transfer medium is circulated by a pump 10 from the exhaust heat exchanger 9 to the oil heat exchanger 5 and the cooling section 6A. The heat transfer medium to be introduced into the exhaust heat exchanger 9 is so controlled in the flow rate that a temperature of the water vapor in the exhaust gas is declined to a temperature lower than the dew point. The heat transfer medium when having received heat directly from the exhaust gas and heat generated by condensation of the exhaust heat is conveyed to the cooling section 6A where its temperature soars up further.

Abstract: Vehicle air-conditioning system, in particular CO2 air conditioner, the refrigerant cycle of which comprises the following components: a compressor, a refrigerant cooler, an internal heat exchanger between the refrigerant-cooler side and the evaporator side, an expansion valve, and an evaporator. To switch the air-conditioning system from cooling-mode operation to heating-mode operation, between the compressor and the refrigerant cooler there is integrated an auxiliary heat exchanger corresponding to a cooling circulation on the engine side, such that downstream of the auxiliary heat exchanger there is disposed an expansion valve by means of which during heating-mode operation the refrigerant can be throttled to a lower pressure.

Abstract: In order to improve the heat-conducting connection between a contact element (3) and a ceiling panel (1) which are adhesively bonded to one another, the contact panel (5) of the contact element (3) is provided with an adhesive depression (10) in the contact surface (6), said depression taking up only part of said contact surface, while the remaining part of the latter rests directly against the upper side of the ceiling panel (1). The contact panel (5) may be elastically or plastically deformable, e.g. along a bending groove (9), with the result that it adapts more easily to irregularities, such as those caused, for example, by slight sagging of the ceiling panel (1). This permits larger widths of the contact panel (5) without impairing the thermal contact. In order to ensure close abutment of the parts of the contact surface (6) which are not adhesively bonded to the upper side of the ceiling panel (1), the contact panel (5) can be appropriately prestressed.

Abstract: A horizontal rooftop engine cooling system includes one or more radiator units horizontally mountable to the rooftop of a bus and including a radiator interconnected to one or more passages of an engine of the bus to allow coolant to flow between the engine and the rooftop cooling system to cool the engine. The cooling system can incorporate a fan mounting shroud, a ram-air aerodynamic shroud, and/or an ornamental aesthetic appearance shroud.

Abstract: A heat pump system includes a compressor, a heat rejecting heat exchanger, an expansion device, and a heat accepting heat exchanger. A storage tank stores the water that cools the refrigerant in the heat rejecting heat exchanger. A mechanical interface plate positioned between a hot water reservoir and a cold water reservoir in the storage tank reduces heat transfer between the hot water and the cold water. During a water heating mode, cold water from the cold reservoir flows into the heat sink to cool the refrigerant in the heat rejecting heat exchanger. As the water exchanges heat with the refrigerant, the water is heated in the heat sink, exits the heat sink, and flows into the hot reservoir of the storage tank. During a water discharge mode, the hot water in the hot reservoir is removed from the storage tank and flows into a hot water discharge. Cold water from a water source flows into the cold reservoir of the storage tank to refill the storage tank.

Abstract: A chuck body mounts a substrate within a vacuum chamber. Contiguous portions of the substrate and the chuck body form a heat-transfer interface. An intermediate sealing structure seals the chuck body to the substrate independently of any contact between the chuck body and the substrate and forms a separately pressurizable region within the vacuum chamber. A control system promotes flows of fluid through a periphery of the heat-transfer interface within the separately pressurizable region for controlling fluid pressures and related transfers of heat at the heat-transfer interface according to an overall aim of regulating the substrate temperature.

Abstract: Apparatus for abstracting heat comprises a container charged with a first liquid and with small auxiliary containers free to circulate in the first liquid. Each of the small auxiliary containers is charged with a second liquid. The first and second liquids each have a selected temperature of transformation that facilitates use of the apparatus to heat or cool a substance contacted by the apparatus.

Abstract: Reinforcement holes and tube holes are formed so as to be of the same size, and the interval between the reinforcement hole and the tube hole adjacent to the reinforcement hole is made equal to the interval between the adjacent tube holes.

Abstract: A keel cooler having a standard header with an internal beveled bottom wall, with orifices on the inner wall of the exterior tubes extending into the header, the orifices being in the natural flow path of the coolant flow. The orifices are sufficiently large so as not to restrict the flow of coolant. A fluid flow diverter is additionally provided in the header of the keel cooler for facilitating coolant flow towards both the interior tubes and also towards the exterior tubes.