Abstract: A vehicle seat air-conditioner includes a seat on which an occupant sits, a heat exchanger that adjusts the temperature of a conditioned gas, a blower that supplies the conditioned gas to the seat, a seat covering layer provided on a surface of the seat and facing the seated occupant, and a flow channel provided on an underside of the seat covering layer that pass the conditioned gas that is introduced by the blower. The vehicle seat air-conditioner is adapted to convey heat of the conditioned gas to an occupant side of the seat covering layer by directly blowing out a portion of the introduced conditioned gas to the occupant side of the seat covering layer, and to perform heat exchange with the occupant side of the seat covering layer by circulating a portion of a remainder of the conditioned gas through the flow channel.

Abstract: The present invention provides a vehicle air-conditioning system in which an air for air-conditioning is cooled at a first evaporator, is heated at a condenser, and is supplied to a vehicle interior in heating operation. The object of the present invention is to suppress a dew condensation at the first evaporator to prevent a freeze of the dew condensation water even if the temperature of the air for air-conditioning introduced from the outside of the vehicle is low. The above object is achieved by disposing a second evaporator between an automated expansion valve to decompress the refrigerant exhausted from a compressor and the first evaporator so as to reduce the absorbed heat at the first evaporator.

Abstract: The disclosed operation method of a heat pump-type vehicle air conditioning system involves a step for setting a cold operating mode for raising the output air temperature of the air conditioner by means of a heater or a normal operating mode for raising the heating COP; a step for detecting the temperatures inside and outside the vehicle; and a step which, by selecting either the cold operating mode or the normal operating mode on the basis of the detected temperatures inside and outside of the vehicle, is for bypassing a condenser, controlling the opening of an electronic expansion valve contained in a bypass unit connected in series to a gas/liquid separating liquid coolant storage unit downstream of the aforementioned heater, and adjusting the pressure drop applied to the coolant.

Abstract: An air conditioning system for a vehicle is provided with a heat pump circulation path through which a refrigerant body is circulated through a compressor. The heat pump circulation path is provided with a condenser unit, an expansion valve, a first evaporator, a heater, and a second evaporator. The heat pump circulation path is also provided with a bypass means which, in heating operation, bypasses a main condenser for constituting the condenser unit and connects the heater and a gas-liquid separation-type refrigerant body containing section. The configuration provides effects which minimize an increase in the number of dedicated parts required only in a heating mode and which, by effectively utilizing the system in a cooling mode, prevents a reduction in the air conditioning performance caused by the shortage of the refrigerant body.

Abstract: A heat exchanger includes a refrigerant condensing part including tubes and fins. A refrigerant is to flow in the tubes to exchange heat between the refrigerant and an external gas to flow outside the tubes. The fins are connected to the tubes. A gas/liquid separating part is to separate the refrigerant into gas and liquid. A refrigerant supercooling part is to exchange heat between the refrigerant and the external gas. The refrigerant supercooling part includes an inlet and an outlet. The refrigerant is to flow into the refrigerant supercooling part from the inlet. The refrigerant is to flow out of the refrigerant supercooling part from the outlet. The refrigerant flows through the refrigerant condensing part, the gas/liquid separating part, and the refrigerant supercooling part in this order. The external gas flows around the refrigerant supercooling part and then flows around the refrigerant condensing part.

Abstract: A vehicular air-conditioning system has a heat pump circulation passage for circulating a coolant with a compressor. To the heat pump circulation passage, there are connected a condenser for performing a heat exchange between a coolant and ambient air, an expansion valve, a first evaporator, a heater, and a second evaporator. The heat pump circulation passage includes a coolant retrieval passage extending from a divider between the condenser and the gas-liquid separator and connected to the compressor. A second backflow check valve for preventing the coolant from flowing from the compressor to the divider and a solenoid-operated valve are connected to the coolant retrieval passage.

Abstract: A vehicle seat air-conditioner includes a seat on which an occupant sits, a seat temperature adjustment device that adjusts the temperature of a conditioned gas, a blower that supplies the conditioned gas to the seat, a seat covering layer provided on a surface of the seat and facing the seated occupant, and a flow channel provided on an underside of the seat covering layer that pass the conditioned gas that is introduced by the blower. The vehicle seat air-conditioner is adapted to convey heat of the conditioned gas to an occupant side of the seat covering layer by directly blowing out a portion of the introduced conditioned gas to the occupant side of the seat covering layer, and to perform heat exchange with the occupant side of the seat covering layer by circulating a portion of a remainder of the conditioned gas through the flow channel.

Abstract: A vehicle seat air-conditioner includes a seat on which an occupant sits, a seat temperature adjustment device that adjusts the temperature of a conditioned gas, a blower that supplies the conditioned gas to the seat, a seat covering layer provided on a surface of the seat and facing the seated occupant, and a flow channel provided on an underside of the seat covering layer that pass the conditioned gas that is introduced by the blower. The vehicle seat air-conditioner is adapted to convey heat of the conditioned gas to an occupant side of the seat covering layer by directly blowing out a portion of the introduced conditioned gas to the occupant side of the seat covering layer, and to perform heat exchange with the occupant side of the seat covering layer by circulating a portion of a remainder of the conditioned gas through the flow channel.

Abstract: The present invention provides a vehicle air-conditioning system in which an air for air-conditioning is cooled at a first evaporator, is heated at a condenser, and is supplied to a vehicle interior in heating operation. The object of the present invention is to suppress a dew condensation at the first evaporator to prevent a freeze of the dew condensation water even if the temperature of the air for air-conditioning introduced from the outside of the vehicle is low. The above object is achieved by disposing a second evaporator between an automated expansion valve to decompress the refrigerant exhausted from a compressor and the first evaporator so as to reduce the absorbed heat at the first evaporator.

Abstract: A vehicle seat air-conditioner includes a seat on which an occupant sits, a seat temperature adjustment device that adjusts a temperature of a conditioned gas, a blower that supplies the conditioned gas to the seat, a seat covering layer provided on a surface of the seat and facing the seated occupant, and a flow channel provided on an underside of the seat covering layer that pass the conditioned gas that is introduced by the blower. The vehicle seat air-conditioner is adapted to convey heat of the conditioned gas to an occupant side by directly blowing out a portion of the introduced conditioned gas to the occupant side, and to perform heat exchange with the occupant side via the seat covering layer by circulating a portion of a remainder of the conditioned gas through the flow channel.

Abstract: Connection of the leads for a thermoelectric module is readily accomplished, and after connection, the tensile strength of the connection is enhanced. One ends of the front and back side lead patterns for the thermoelectric module, formed on a support plate, are connected by solder to a Cu rod provided at an end of a group of thermoelectric semiconductor elements affixed to the support plate. After the front end of the lead for the thermoelectric module is bent and passed from the side of the front lead pattern through a through hole formed between the front and back side lead patterns, the front end is connected to the back side lead pattern by solder.

Abstract: A vehicle air-conditioning system includes a controller for controlling operation of an air-conditioner unit and operation of a seat heating and cooling device in interlocked relation such that operating conditions of the air-conditioner unit are automatically changed on the basis of the temperature of a vehicle seat, operating conditions of the seat heating and cooling device, or setting information of the seat heating and cooling device, or alternatively operating conditions of the seat heating and cooling device are automatically changed on the basis of the operating conditions of the air-conditioner unit or setting information of the air-conditioner unit.

Abstract: A vehicle seat temperature conditioner includes a Peltier element, a heat exchanger for performing a heat exchange between heat generated or absorbed by the Peltier element and air transferred from a blower, and a case housing the Peltier element and heat exchanger together so as to provide the temperature conditioner as an independent self-contained unit or module. The housing case is made of a resilient and flexible material and functions also as a connector for coupling with an air intake pipe to introduce air from a blower into the vehicle seat temperature conditioner and with an air discharge pipe to discharge temperature-conditioned air from the temperature conditioner to air holes formed in the vehicle seat.

Abstract: A frame member for the front of the interior of an automobile is in the form of a casting and has a cross-sectional shape with an opening which opens at least downwardly. The frame member has, integrally formed therewith, a steering component support, an air-conditioner support and structural section, and an ECU support and structural section. The frame member also has an electrical harness passage and an air bag inflator module attachment disposed on an upper portion thereof.

Abstract: In an air conditioning device having an air passage device that extends inside an instrument panel in a lateral direction of the body of a motor vehicle, the air passage device has a substantially L-shaped slit for attachment and detachment of an air filter, the slit being formed of a first slit opening downwardly and a second slit opening rearwardly of the vehicle body and a gap is provided between the second slit and a front end portion of a glove box. This permits the air filter of a square plate shape to be attached to and detached from the slit without interfering with the glove box, while being rotated slightly along the floor and toe board of the passenger compartment.

Abstract: A stack type evaporator according to the invention comprises a plurality of plate-shaped tubular elements stacked in a direction of their width with a fin member interposed between two of such tubular elements which have inlet header portions at their ends and outlet header portions at their further ends so that coolant can flow straight within said tubular elements, a pair of dish-shaped core plates which constitute each tubular element having inner surfaces provided with ribs arranged at regular intervals in a direction of coolant flow, wherein an end surface of each rib protruding from one core plate is alternately bonded to a flat body of the other core plate whereby the coolant paths within each tubular element are formed parallel with each other and straight from the inlet header portion toward the outlet header portion.

Abstract: A control device for a variable displacement swashplate type compressor, said compressor comprising a control piston connected to a sleeve and moved in response to pressure of a control pressure chamber in order to adjust an operating stroke of an operating piston by varying a position of angular displacement around the axis of the support shaft of an holder and a swashplate, a control valve being interposed among an intake chamber and a discharge chamber of said compressor and said control pressure chamber in order to control the discharge capacity of the compressor in response to intake pressure, wherein the control valve comprises a first valve mechanism capable of putting the discharge chamber and the control pressure chamber into and out of communication with each other and a second valve mechanism capable of putting the control pressure chamber and the intake chamber into and out of communication with each other, said first valve mechanism being opened when the pressure of the intake chamber is less tha