Abstract: The present invention relates to a plate for a heat exchanger, which has beads of refrigerant distributing sections formed asymmetrically and streamlined beads arranged in the same number on flow channels in the form of a zigzag so that refrigerant flowing inside a tank is distributed and introduced to tubes uniformly, thereby increasing a heat radiation amount and enhancing a heat exchange efficiency by forming uniform flow distribution and reducing a pressure drop of refrigerant, and miniaturizing the heat exchanger into a compact size.

Abstract: A condensed water drain structure includes an air conditioning case having an evaporator and a drain for draining condensed water from inside the air case to the exterior of a vehicle body. A drain cap mounted on the drain has a head with a hole for draining condensed water. The hole is shaped as a slot having a height difference toward the air conditioning case in an axial direction of the head. The condensed water is smoothly drained even though there is a narrow space between a plate in the case and structure external to the case, to prevent vehicle exhaust gas or smoke from entering of the vehicle body.

Abstract: The present invention relates to a plate for a heat exchanger, which has beads of refrigerant distributing sections formed asymmetrically and streamlined beads arranged in the same number on flow channels in the form of a zigzag so that refrigerant flowing inside a tank is distributed and introduced to tubes uniformly, thereby increasing a heat radiation amount and enhancing a heat exchange efficiency by forming uniform flow distribution and reducing a pressure drop of refrigerant, and miniaturizing the heat exchanger into a compact size.

Abstract: A power transmission device for a clutchless compressor, in which, when a torque above a preset value is generated in the compressor during power transmission from an engine to the compressor, a breaking member connecting a pulley side with a hub side is broken and also the breaking member is released from the structure, thereby preventing a failure of engine belt and unnecessary noise.

Abstract: The present invention relates to a heat exchanger, in which the flow of a heat exchange medium flowing through tubes is selectively controlled, and opened and closed in order to control heat exchange capability according to cooling and heating loads. More specifically, the invention relates to a heat exchanger, in which one distribution hole is constructed for one tube, so that temperature can be minutely controlled with small temperature deviation in each step, and the opening and closing method of the distribution hole is configured in a sliding type that uses a slide valve, so that the shapes of a header and a tank are simplified, and a clamping operation is also improved.

Abstract: The present invention relates to an assembling structure of field coil, which has a simple mounting structure for a diode and a resistor to cut an off-noise of an electromagnetic clutch and to prevent damage of peripheral parts due to surge voltage generation when power source applied to an electronic coil body is cut off, thereby improving a mounting efficiency, reducing a manufacturing cost by reduction of the number of parts, and realizing an automatic production. The assembling structure of field coil includes an electronic coil body (101), a core ring (110) and a sleeve (120) having a first and second terminals (131) (132), and a case that has a receiving part (135) and a first and second connection parts (136) (137).

Abstract: Guide blades of an axial flow fan shroud for guiding the air blown by an axial flow fan in an axial direction. A guide blade of an axial flow fan shroud has a leading edge for introducing the air blown by an axial flow fan including a plurality of blades; a trailing edge extended from the leading edge to downstream; and an air flow guide surface for guiding the blown air between the leading and trailing edges. A first outlet area a is defined by at a radius r from a root in the total length R of an angle of projection Aout of the guide blade and a second outlet area b is defined by the remainder, the angle of projection Aout increases as approaching a tip with respect to an axial line in the second outlet area b.

Abstract: A cooling system is provided for a battery unit and a motor control unit of a hybrid vehicle. Preferred cooling systems can have a compact structure and can efficiently cool the battery unit and the motor control unit mounted in a vehicle using air, thus ensuring stable operation of the battery unit and the motor control unit and maximizing utilization of space in the vehicle.

Abstract: A car defogging system reduces energy required to defog a windshield glass of the car. A temperature sensor mounted at the windshield glass detects the glass surface temperature, Ts. A humidity sensor spaced from the windshield glass by a predetermined distance detects the humidity, H, around the windshield glass. A temperature sensor mounted inside the windshield glass detects peripheral temperature Te around the glass. A system controller determines if fog is or is not present by comparing the dew point temperature Td with the surface temperature Ts. Dew point temperature Td is derived by the combining values of H and a temperature Tc based on a combination of Ts and Te.

Abstract: A variable capacity air conditioner compressor is controlled by setting a car target indoor temperature; sensing car indoor and outdoor temperatures and solar radiation with sensors at predetermined car positions; calculating a vent target discharge temperature using the target temperature, sensed car temperatures and solar radiation; calculating a target evaporator temperature and blower voltage based on target discharge temperature; calculating a control duty based on the target evaporator temperature; calculating target evaporator temperature and blower voltage change rates; determining whether or not the compressor comes under a sudden variable condition based on the control duty, and target evaporator temperature and blower voltage change rates; and setting a control duty change rate maximum value to an accelerative slew rate greater than and equal to a basic slew rate when sudden and not sudden variable conditions are respectively determined.

Abstract: This invention relates to an expansion valve, which has rectangular flow channels for assembling inlet and outlet pipes of an evaporator with an inlet pipe of a compressor and an outlet pipe of a condenser at an approximate right angle, and a guide part formed on the flow channel, thereby improving a mounting efficiency and reducing flow resistance and noise, and the expansion valve includes a body having at least one or more flow channels, each of which has inlets and outlets whose central lines are at a right angle to each other, and a guide part formed between the inlet and the outlet; a head part mounted on the body and reciprocating a rod in an axial direction by expansion and contraction actions according to a temperature change of the working fluid discharged from an outlet of an evaporator and flowing through the flow channel; and opening means for controlling a flow amount of the working fluid flowing through the flow channel according to the movement of the rod.

Abstract: A pulley is made by fixing an edge of an opening of a plate by using a first upper mandrel ring installed at a lower end of a first supporting pin of a first forming device. A supporting block disposed around an upper end of a first spindle is rotated with the first spindle. An inner hub of the pulley is formed by inwardly pressing an upper surface of the plate against a first pressing roller to reduce the thickness of the plate while drawing the plate around a first mandrel ring. The plate is fixed to a second spindle of a second forming device, so the plate rotates with the second spindle. An outer hub is formed by pressing a convex bead toward the inner hub by using a fourth pressing roller and by drawing the outer hub.

Abstract: The present invention relates to a controlling method of an air conditioning system for vehicles. The method of the present invention includes the steps of: setting up a target indoor temperature of a vehicle determined by a user; inputting the indoor and outdoor temperature of the vehicle and solar radiation with referencing to a sensor mounted on a certain position of the vehicle; calculating a target discharge temperature (T1) of a vent; inputting the maximum evaporator temperature (T2); setting up a target evaporator temperature by comparing the T1 with the T2; calculating the opening degree of a temperature control door; measuring actual evaporator temperature while controlling the discharge capacity of a compressor; calculating an output value of each operation part by using the actual evaporator temperature and the opening degree of the temperature control door determined by the target discharge temperature; and outputting the calculated output value of the operation part.

Abstract: A compressor that inhales refrigerant gas from an external refrigerant circuit, compresses the inhaled refrigerant gas and discharges the compressed refrigerant gas, comprising a cylinder block having a plurality of bores, and a suction muffler chamber having a suction port connected to an external refrigerant circuit installed on the outer circumferential surface of the cylinder block, a front housing coupled to the front side of the cylinder block and forming a crank chamber, a driving shaft supported so as to freely rotate with respect to the cylinder block and the front housing, a single-headed piston connected to a slanting plate element mounted on the driving shaft and linearly reciprocating inside the bores of the cylinder block, and a rear housing connected to and closing the rear side of the cylinder block, having a discharge chamber and a suction chamber, and having two or more suction chamber connecting passages at an upstream side of the suction chamber.

Abstract: An air conditioning system for an automobile prevents leakage of condensed water by locating two drain parts respectively on an air conditioning case and a protective cover having a drain structure beneath the air conditioning case. A drain hose, connected to and communicating with the drain parts, discharges the condensed water to the outside of the automobile without dispersion of the condensed water by forming a condensed water discharge pipe positioned on the protective cover. The protective cover, mounted on the bottom surface of the air conditioning case, surrounds the inflow and outflow pipes and has an auxiliary drain part formed at a side thereof. The drain hose connects the drain part of the air conditioning case with the auxiliary drain part of the protective cover.

Abstract: A compressor with an electromotive swash plate includes a front housing having a front discharge chamber for discharging a firstly compressed refrigerant, a rear housing having a rear suction chamber communicating with the front discharge chamber to receive the firstly compressed refrigerant and a rear discharge chamber for discharging a secondly compressed refrigerant, the rear suction chamber and the rear discharge chamber being divided by a partition, a cylinder block disposed between the front and rear housings, the cylinder block being provided with a swash plate chamber receiving the swash plate, a plurality of bores in which respective pistons are slidably installed, a discharge gas passage for assigning refrigerant flow between the front and rear housings, a driving shaft mounted in the cylinder block, the driving shaft being rotated by a motor received in a motor chamber formed adjacent to one of the front and rear housings, and a plurality of dual-head pistons reciprocating in the bore due to the in

Abstract: An automotive vehicle defogging system prevents dissipation of energy required to defog the automotive vehicle wind shield. A surface temperature sensor mounted on the wind shield detects the glass surface temperature. A humidity sensor spaced from the wind shield glass by a predetermined distance detects the humidity around the wind shield. A peripheral temperature sensor mounted inside from the wind shield glass detects peripheral temperature around the glass. Dew point temperature is obtained in response to the detected humidity H and a temperature value based on the temperatures detected by the surface and peripheral temperature sensors. The presence of fog is detected by comparing the dew point temperature with the surface temperature Ts.

Abstract: Provided is an air conditioner for a vehicle, including a blower unit that blows air, an air conditioning case including an evaporator and a heater core, which are sequentially disposed in an airflow path, and an air inlet path that allows air to flow to an evaporator from the blower unit, wherein the airflow path includes a first path that allows air entered from the air inlet path to flow to a lower part of the evaporator and second and third paths that allow the air to flow to the lower part of the evaporator after passing through both sides of the evaporator. The air conditioner increases an amount of airflow and reduces airflow resistance since airflow paths are formed on both sides of the evaporator in addition to a direction perpendicular to the separator. Consequently, the airflow entering a lower part of the evaporator can be uniformly distributed.

Abstract: The present invention relates to a blower for air conditioner of automotive vehicles capable of striving to increase the blowing volume and reduce noise, and simplifying the structure of the blower by distributing the air come into the inside of an intake duct effectively to an upper blowing wheel and a lower blowing wheel.

Abstract: The present invention relates to a door actuator having a dual output shaft for an air conditioner of a vehicle, which includes a modulated feedback sensor having a hollow and fit to one of two output shafts of an output gear through the hollow for recognizing and controlling a feedback output value without using a circuit board, thereby minimizing deterioration of quality caused by soldering, reducing the number of parts, and minimizing an operational error.