Abstract: A cooling system for a hybrid vehicle in which power from an engine and a motor can be transmitted to driving wheels through a clutch and a transmission mechanism may include a heater core fluid-connected to the engine to heat the interior of the hybrid vehicle, using cooling water from the engine, and a heat exchanger which may be arranged in parallel with the heater core and fluid-connected to the engine to receive the cooling water from the engine together with the heater core, and through which ATF (Automatic Transmission Fluid) that has cooled the motor and the transmission mechanism exchanges heat with the cooling water from the engine.

Abstract: A suction check valve of an air-con compressor of a vehicle, may include a valve housing fixed in an intake port of the air-con compressor and having at least a housing hole, a valve core elastically supported upwards by an elastic member in the valve housing to reciprocate in the longitudinal direction of the valve housing and having at least a core groove formed along outer circumference thereof, and a valve cap connected to an upper end of the valve housing to prevent the valve core from separating from the valve housing and having a cap hole connected the intake port with the valve housing.