Abstract: A cooling apparatus of a vehicle includes a single radiator and an air conditioner condenser. The single radiator is partitioned into a cooling portion of an engine cooling system and a cooling portion of a second cooling system which is to be kept at a lower temperature than the engine cooling system. The air conditioner condenser includes a condensing portion and a sub-cool portion. The condensing portion of the air conditioner condenser and the cooling portion of the second cooling system of the single radiator are offset from each other in a vertical direction such that the condensing portion of the air conditioner condenser and the cooling portion of the second cooling system of the single radiator are not overlapped when viewed in a front-to-rear direction of the vehicle.

Abstract: An HVAC assembly includes an HVAC case having a first inlet adapted to accept air in a first configuration suitable for a right hand drive vehicle and a second inlet adapted to accept air in a second configuration suitable for a left hand drive vehicle. The HVAC case includes at least one outlet for delivering air to a vehicle cabin. A deflector plate is adapted to cooperate with the HVAC case in the first configuration whereby the deflector plate allows air to pass through the first inlet and inhibits air passage through the second inlet. The air deflector plate is adapted to cooperate with the HVAC case in the second configuration whereby the deflector plate allows air to pass through the second inlet and inhibits air passage through the first inlet.

Abstract: A method for humidifying and controlling the temperature of a process gas stream comprising the steps of super-saturating and heating the process gas stream with steam until it reaches a first pre-set temperature; cooling the process gas stream until it reaches a second pre-set temperature; removing excess condensed water from the process gas stream; and heating the process gas stream until it reaches a third pre-set temperature. An apparatus for implementing this method is also disclosed.

Abstract: An air conditioner for a vehicle is provided. An internal air passage in a case of the air conditioner includes a first passage which guides a portion of the air from a blower unit to flow through an auxiliary cooling portion of the evaporator, a second passage, which guides the remaining portion of the air from the blower unit to bypass the auxiliary cooling portion of the evaporator, an air mixing portion in which the air passed through the first passage and the air passed through the second passage flow together, and a third passage, which is connected to the air mixing portion and guides the air passed through the air mixing portion to flow through a main cooling portion of the evaporator. In the air conditioner a portion of the air that flows in is cooled twice while passing through the auxiliary cooling portion and the main cooling portion of the evaporator, so that a higher cooling efficiency requirement, especially regarding the early stage cooling performance, is satisfied.

Abstract: There are provided a water-refrigerant heat exchanger 30 for exchanging heat between refrigerant discharged from a compressor 21 and engine-cooling water circulating an engine-cooling water circuit 10, prior to being fed into the radiator 22, and a bypass 25 for guiding the refrigerant prior to being fed into the evaporator 24 to the water-coolant heat exchanger 30 while bypassing the evaporator 24 and the compressor 21. When it is desired to accelerate the warming-up of the engine 11, the bypass 25 is closed to operate the compressor 21 to heat the engine-cooling water by high-pressure refrigerant, and when it is desired to complement the capacity of the radiator 12, the bypass 25 is open to guide the liquid-phase refrigerant to the water-refrigerant heat exchanger 30 to effectively cool the refrigerant by using the phase change of the refrigerant.

Abstract: A constant temperature refrigeration system for extensive temperature range application comprising a refrigerator, a low-temperature heat exchanger, a medium-temperature heat exchanger, a high-temperature heat exchanger, a pump, a first solenoid valve, a second solenoid valve, a third solenoid valve, a temperature sensor, a power regulator and a controller, the temperature sensor is utilized for determining the working fluid temperature and compare the actual input temperature, the actual output temperature and the predetermined temperature, and the controller is utilized for controlling the first solenoid valve, the second solenoid valve and the third solenoid valve for conveying the fluid to flow through various heat exchangers so that the working fluid is heated or cooled, with the result being that the working fluid temperature outputted is to reach the predetermined temperature, so as to acquire the working fluid having the exactly and precisely predetermined low temperature (?40° C. to 25° C.

Abstract: A header for a heat exchanger, the header having a beveled closed end portion.

Abstract: An incoming air duct (9) and an exhaust air duct (12) which connect an incoming air inlet (14) and an exhaust air outlet (10), respectively, in an outside side-wall (1b) to an incoming air outlet (13) and an exhaust air inlet (11) in a room-facing side wall (1a) are arranged side by side, separated only by partitions (8) of aluminium sheet, to permit heat exchange between the exhaust air flow and the opposite incoming air flow over a plurality of straight sections (6a, 6b, 6c, 6d, 6e) of a double duct which are connected by deflections (7a, 7b, 7c, 7d) of in each case 180°.

Abstract: A vehicle air conditioner selectively switches one of a cooling mode in which an interior heat exchanger of a refrigerant cycle is operated as an evaporator for cooling air, and a heating mode in which the interior heat exchanger is operated as a radiator for heating air. In the vehicle air conditioner, an accumulator, for separating gas refrigerant and liquid refrigerant from each other and for storing the separated liquid refrigerant therein, is disposed between an outlet of the interior heat exchanger and a suction port of a compressor. Further, the accumulator includes a heating device for heating the liquid refrigerant stored in the accumulator in the heating mode. Therefore, heating performance for heating air in heating mode can be efficiently improved.

Abstract: A method of controlling a hydronic system is provided. The hydronic system includes a plurality of fluid heat exchange units for feeding a load, and a bypass valve for bypassing the load. The method includes operating at least a first and a second fluid heat exchange unit in the hydronic system to heat or cool a fluid. An output fluid flow of each of the operating fluid heat exchange units is monitored. The monitored output fluid flow of each fluid heat exchange unit is compared to a predetermined fluid flow setpoint. The output fluid flow of each of the operating fluid heat exchange units is adjusted towards the predetermined fluid flow setpoint if the monitored output flow is different from the predetermined fluid flow setpoint by at least a predetermined margin. A combined output fluid flow of the operating fluid heat exchange units is also monitored. The bypass valve is at least partially opened if the combined output fluid flow is below a predetermined minimum combined output fluid flow.

Abstract: This cleaning system includes a compressor driven by a motor, a condenser; a cooling fan for directing an air stream at the condenser during normal operation, a motor drive system for driving the fan, and a timing device for reversing the rotational direction of the fan motor to direct the stream of cooling air away from the condenser to remove debris collected on the condenser and clean the condenser during a cleaning cycle. The fan is driven by drive system having a solid state commutated motor or a drive system having a reversible permanent split capacitor motor. The timing device includes a timer for controlling the time periods during the normal operation (cooling) cycle and during the cleaning cycle.

Abstract: A vehicle air-conditioning system adjusts the temperature at an outlet by a combined amount of air flowing through a first bypass passage adjusted by an air mixing door and air flowing through a second bypass passage adjusted by a cool air adjusting door independently of the first bypass. A cool air adjusting door control unit adjusts the opening of the cool air adjusting door so that the temperature detected by a discharge temperature sensor comes closer to a target discharge temperature for precise control of discharge temperature, and also causes the cool air adjusting door to be fully open when the opening of the air mixing door determined by an air mixing door opening setting unit is equal to or smaller than a predetermined degree of opening, so as to maintain a steady amount of air discharged from the outlet.

Abstract: A vehicle air conditioner selectively switches one of a cooling mode in which an interior heat exchanger of a refrigerant cycle is operated as an evaporator for cooling air, and a hot-gas heating mode in which the interior heat exchanger is operated as a radiator for heating air. The cooling mode is selected by turning on an air-conditioning switch, and the hot-gas heating mode is selected by turning on a hot gas switch. When both the switches are turned on at the same time, a control unit determines a priority mode having a higher necessity among the hot-gas heating mode and the cooling mode. Specifically, the hot-gas heating mode is automatically set by the control unit when the outside air temperature is lower than a predetermined temperature, and the cooling mode is automatically set by the control unit when the outside air temperature is higher than the predetermined temperature.

Abstract: The invention relates to a ventilation device for ventilation room by room and/or zone by zone and comprises: a) a device casing (12), which is provided in or adjacent an outer wall of a building or the like and which connects room air to outside air, b) a heat-exchange (22) of counter flow type, provided in the casing (12) and transferring heat from the outgoing and in-going airflows, respectively, c) two fans (18,20) arranged in said casing (12), of which one is connected to the ingoing air duct (14) of the heat-exchanger (22) and the other to the outgoing air duct (16) of the heat-exchanger (22), d) at least one sensor (30) for determination of the airflow's relative deviation in velocity from a neutral value of the airflows passing through each respective duct (14, 16), and e) a control means (32), which, depending on the values given by the sensor (30), is arranged to regulate the rotation speed of the fans (18, 20), for the purpose of substantially balancing the airflow, so that it is substantially equa

Abstract: A motor-fan shroud is formed at its lower portion with a supporting portion having a hole and at its upper portion with a first and second clip portions arranged apart from each other in a width direction. A reservoir tank is formed at its lower portion with a projection extending downward and insertable into the hole of the supporting portion and at its upper portion with a first and second ear portions insertable from above into the first and second clip portions, respectively. A first clipping surface of the first clip portion has a substantial half-ball shaped projection to be fitted in a hole of the first ear portion, while the second ear portion has a claw to be latched by the second clip portion so that unlatch, in an upward direction, of them can be prevented.

Abstract: An integrated engine guard oil cooler is mounted to a motorcycle. The cooler is a hollow tube having an inlet, an outlet, a plurality of cross-sectional restrictions in its interior, and a plurality of radial cooling fins on its exterior. The tube has a shape such that, when the inlet and the outlet are mounted on opposite sides of the lower frame of a motorcycle, the tube extends outwardly from each side of the frame, then extends upwardly, and then extends inwardly to join and form an enclosed passageway. When the inlet and the outlet communicate with the oil reservoir of the engine, oil flows through the tube with successive pressure increases and pressure decreases as it passes the cross-sectional restrictions and heat from the oil is transferred to the ambient air through the radial cooling fins.

Abstract: An air conditioner for an occupant compartment of a vehicle having a forward vehicle space and a rearward vehicle space with right and left seat zones includes an air conditioning box, in which an evaporator and a heat exchanger are arranged, as well as a cold air space situated between the evaporator and the heat exchanger. A warm air space is arranged behind the heat exchanger and air mixing spaces are constructed for supplying the forward vehicle space and the rearward vehicle space with conditioned air. To provide a mutually independent temperature adjustment in the forward vehicle space and the rearward vehicle space, a separate air mixing space is assigned to each seat zone. The four air mixing spaces are connected with the warm and cold air spaces by one warm and one cold air flap respectively.

Abstract: In an automotive air conditioner, there is provided an air guide arrangement for achieving an effective mixing between cooled air from an evaporator and warmed air from a heater under a bi-level mode. The air guide arrangement is placed in the vicinity of an outlet opening of a warmed air passage extending from the heater. The air guide arrangement forces a warmed air from the outlet opening of the warmed air passage to effectively mix with a cooled air which flows in a direction from the evaporator toward a ventilation air outlet opening.

Abstract: A thermal reservoir for a two-pipe hydronic air-conditioning system is disclosed. Said thermal reservoir includes a well-insulated tank for alternatively storing hot and cold water. Said thermal reservoir contains plurality of valves for directing hot water stored therein into the two-pipe hydronic air-conditioning system, thereby causing cold water within the two-pipe hydronic air-conditioning system to be displaced therefrom and into well insulated storage tank. Said process is fully reversible in that cold water displaced from the two-pipe hydronic air-condition system into said thermal reservoir may be subsequently directed from the thermal reservoir and restored to the two-pipe hydronic air-conditioning system and hot water therefrom directed back into storage. Accordingly a two-pipe hydronic air-conditioning system may be switched between heating and cooling modes with rapidity and without waste of the energy content of said hot water and said cold water.

Abstract: The sample temperature regulator is provided with a heating block (3) having a sample container holder (6) and a temperature-controllable heater (7) and with a cooling block (4) having a cooling mechanism (11). These two blocks are combined with each other through a connecting plate (15) made of a material having a thermal conductivity lower than those of these blocks. This constitution can reduce heat transfer between the heating block and the cooling block and allows them to have wide temperature regulating ranges, as well as increased heating capacity and cooling capacity, respectively. Further, this constitution makes the structure of the temperature regulator simple and compact, so that the regulator has increased durability and can be offered at a low price.