Abstract: The polishing pad according to an embodiment has a chlorine content adjusted to a certain range, whereby it is possible to reduce the size of debris while maintaining excellent physical properties and performance of the polishing pad, thereby minimizing the occurrence of defects and scratches during a chemical mechanical polishing (CMP) process.

Abstract: Provided is a heat exchanger, and more particularly, a heat exchanger including a pair of header tanks formed in parallel, spaced apart from each other by a predetermined distance, a plurality of tubes having both ends fixed to the pair of header tanks to form a channel for a heat exchange medium; a plurality of fins fixed to abut between the tubes, and a plurality of louvers formed at the fins to contact air passing through the circumference of the fins, in which the louvers are formed to be asymmetrical to each other based on a center in a width direction of the fin or louver columns formed at one side or the other side of the fin in an asymmetrical form are alternately formed in a length direction of the fins to improve a flow of cooling air, thereby improving a heat radiation performance.

Abstract: Provided is a heat exchanger, and more particularly, a heat exchanger including a pair of header tanks formed in parallel, spaced apart from each other by a predetermined distance, a plurality of tubes having both ends fixed to the pair of header tanks to form a channel for a heat exchange medium; a plurality of fins fixed to abut between the tubes, and a plurality of louvers formed at the fins to contact air passing through the circumference of the fins, in which the louvers are formed to be asymmetrical to each other based on a center in a width direction of the fin or louver columns formed at one side or the other side of the fin in an asymmetrical form are alternately formed in a length direction of the fins to improve a flow of cooling air, thereby improving a heat radiation performance.

Abstract: Provided is a refrigerant cycle of an air conditioner for vehicles, and more particularly, a refrigerant cycle of an air conditioner for vehicles having a first evaporating unit and a second evaporating unit disposed upstream and downstream in a direction in which air blown from a single blower flows to control an amount of the refrigerant supplied to each evaporating unit, thereby making it possible to obtain optimal radiating performance (cooling performance) and cooling efficiency (COP) through the design of the optimal refrigerant flow ratio depending on the cooling load.

Abstract: Provided is an apparatus for generating perfume for vehicles, and more particularly, an apparatus for generating perfume for vehicles capable of simplifying a configuration and increasing sealing ability to stably control perfume, by easily controlling a flow of air passing through a first perfume generating part and a second perfume generating part using a single rotating shaft.

Abstract: An air freshener generating apparatus of a vehicle air conditioning system includes a body in which an inlet pipe is communicated with an outlet pipe and on a circumferential surface of which ball plungers are mounted at intervals along circumferential lines on which the inlet pipe and the outlet pipe are located respectively, a cartridge rotatably coupled to the body and having at least one partition wall such that at least one air freshener emitter is filled within spaces defined by the partition wall, the cartridge having through-holes facing the ball plungers, and an actuator configured to rotate the cartridge by a predetermined angle. When the cartridge is rotated by the predetermined angle, air is supplied through the through-hole facing the inlet pipe such that one air freshener is discharged through the through-hole facing the outlet pipe, and the ball plungers are configured to block the rest of the through-holes.

Abstract: Provided is an apparatus for generating perfume for vehicles, and more particularly, an apparatus for generating perfume for vehicles capable of simplifying a configuration and increasing sealing ability to stably control perfume, by easily controlling a flow of air passing through a first perfume generating part and a second perfume generating part using a single rotating shaft.

Abstract: The cooling system for a vehicle comprises a heat exchanger in which a condenser 200 comprising a plurality of tubes 112, 220; a pair of tanks 210; and fins 113, 230 and in which a condenser 200 comprised of portions 210B, 220, 230 through which the refrigerant is flowed is integrally formed with a first oil cooler 110 comprised of portions 210A, 112, 113 through which the oil is flowed; a radiator 300 which comprises a plurality of radiator tubes 320; a pair of radiator tanks 310; and radiator fins 330, and which is positioned at a down stream of the condenser 200 in the air blow direction; and a second oil cooler 120 which is provided in one of the radiator tanks 310 of the radiator 300.

Abstract: The invention provides an air freshener generating apparatus of a vehicle air conditioning system adapted to generate and discharge different sorts of air fresheners filled within a cartridge into an interior of a vehicle. The air freshener generating apparatus of a vehicle air conditioning system includes: a body in which an inlet pipe is communicated with an outlet pipe and on which ball plungers are mounted at intervals on a circumferential surface thereof along circumferential lines on which the inlet pipe and the outlet pipe are located respectively; a cartridge coupled to the body and having at least one partition wall such that at least two air fresheners are filled within spaces defined by the partition wall, the cartridge having through-holes at portions of the cartridge corresponding to the spaces defined by the partition wall; and an actuator configured to rotate the cartridge a predetermined angle.

Abstract: Provided is a refrigerant cycle of an air conditioner for vehicles, and more particularly, a refrigerant cycle of an air conditioner for vehicles having a first evaporating unit and a second evaporating unit disposed upstream and downstream in a direction in which air blown from a single blower flows to control an amount of the refrigerant supplied to each evaporating unit, thereby making it possible to obtain optimal radiating performance (cooling performance) and cooling efficiency (COP) through the design of the optimal refrigerant flow ratio depending on the cooling load.

Abstract: Provided is a multi-evaporation system which carries out a multi-evaporation process in an air-conditioning cycle of a vehicle air conditioning system, thereby enhancing system efficiency. The multi-evaporation system includes a compressor 10 which sucks and compresses refrigerant; a condenser 20 which condenses the refrigerant compressed in the compressor 10; an expanding means 30 which receives the refrigerant condensed in the condenser 20 through an inlet port 31, branches the refrigerant into at lest two or more, discharges the refrigerant through at least two or more discharging part 32a to 32n, and throttles the refrigerant before or after the refrigerant is branched; and an evaporator 40 which comprises at least two or more evaporating parts 41 to 4N so as to receive and evaporate the refrigerant discharged from the expanding means 30 and then introduce the evaporated refrigerant into the compressor 10.

Abstract: The cooling system for a vehicle comprises a heat exchanger in which a condenser 200 comprising a plurality of tubes 112, 220; a pair of tanks 210; and fins 113, 230 and in which a condenser 200 comprised of portions 210B, 220, 230 through which the refrigerant is flowed is integrally formed with a first oil cooler 110 comprised of portions 210A, 112, 113 through which the oil is flowed; a radiator 300 which comprises a plurality of radiator tubes 320; a pair of radiator tanks 310; and radiator fins 330, and which is positioned at a down stream of the condenser 200 in the air blow direction; and a second oil cooler 120 which is provided in one of the radiator tanks 310 of the radiator 300.

Abstract: An oil cooler includes a pair of spaced inlet/outlet boss portions; an inlet pipe and an outlet pipe coupled to the inlet/outlet boss portions, respectively; and tubes coupled to the inlet/outlet boss portions through both ends thereof to form an oil flow passage. The tubes are disposed in parallel and in a multi-stage arrangement. Each tube has a portion in fluid flow relationship with the neighboring tube at an area between the inlet and outlet pipes so oil can flow between them.