Abstract: A water purifier and a filter for the water purifier are provided. The water purifier includes a raw water flow path formed to bring in raw water from the outside, a purified water flow path connected to the raw water flow path for the raw water to flow in a first direction, a filter located in the purified water flow path to filter the raw water, a bypass flow path branched from the purified water flow path for the raw water to bypass the filter and connected to the purified water flow path on a downstream side of the filter in the first direction, a washing flow path branched from the bypass flow path and connected to the purified water flow path on a downstream side of the filter in the first direction, and a drain flow path connected to the filter to guide the raw water flowing into the filter to a second direction.

Abstract: Disclosed are a pulley structure and a damper pulley that prevent corrosion. The pulley structure may include a hub part that is fitted on a crankshaft rotated by power from an engine and rotates with the crankshaft and a pulley part coupled with the hub part to rotate with the hub part and connected with a power transmission member. The hub part may include a pulley contact surface facing the pulley part, and pulley coupling portions formed at the pulley contact surface to secure coupling members. The pulley part may include a hub contact surface facing the pulley contact surface of the hub part, hub coupling portions coupled to the pulley coupling portions by securing the coupling members, and coupling grooves recessed from the hub coupling portions to insert the coupling members. Washers made of an insulator may be fitted on the coupling members between the pulley coupling portions and the hub coupling portions.

Abstract: A method for controlling a heat pump system is provided with air conditioning means connected to a controller and including a plurality of valves and expansion valves connected to each other through a refrigerant line and a bypass line, a compressor, an accumulator, an evaporator, an exterior condenser, an interior condenser, and an HVAC module having a PTC heater and a door at a warming mode, a cooling mode, a dehumidification mode, a dehumidification/defrosting mode, or an extremely low temperature dehumidification/defrosting mode according to selection of a driver.

Abstract: Disclosed are a pulley structure and a damper pulley that prevent corrosion. The pulley structure may include a hub part that is fitted on a crankshaft rotated by power from an engine and rotates with the crankshaft and a pulley part coupled with the hub part to rotate with the hub part and connected with a power transmission member. The hub part may include a pulley contact surface facing the pulley part, and pulley coupling portions formed at the pulley contact surface to secure coupling members. The pulley part may include a hub contact surface facing the pulley contact surface of the hub part, hub coupling portions coupled to the pulley coupling portions by securing the coupling members, and coupling grooves recessed from the hub coupling portions to insert the coupling members. Washers made of an insulator may be fitted on the coupling members between the pulley coupling portions and the hub coupling portions.

Abstract: A heat pump system for a vehicle includes a water cooled condenser that uses a coolant as a heat exchange media and uses waste heat generated from a motor and an electronic device to improve heating performance, efficiency, and dehumidifying performance. A control method is also described.

Abstract: The heat exchanger may include a pipe unit mounted on a refrigerant line connecting a compressor with an evaporator of an air conditioning and adapted to flow a refrigerant and a LPG fuel returned from the engine, a first connecting member mounted at an end of the pipe unit to connect the pipe unit with the refrigerant line where the refrigerant line is connected to the compressor, and a second connecting member mounted at the other end of the pipe unit to connect the pipe unit with the refrigerant line where the refrigerant line is connected to the evaporator. The heat exchanger is configured so that the high-temperature LPG fuel is capable of exchanging heat with the refrigerant.

Abstract: A heat storage device of a vehicle may include an insulation container, a coolant passage connected to an engine, a heat exchanger having a fin formed on the coolant passage inside the insulation container, a phase change material charged in the insulation container to exchange heat with flowing coolant, a phase change material temperature sensor, a pressure sensor, an engine coolant temperature sensor, and a control portion that circulates the coolant according to the driving condition of the engine and the coolant temperature such that the coolant exchanges heat with the phase change material. Accordingly, fuel for warming an engine or heating an interior room is reduced, a separate heating device or a warm up device such as a PTC heater can be replaced, quality of the exhaust gas is quickly improved, and there is a merit in overcoming environmental regulations.

Abstract: A heat storage device of a vehicle may include an insulation container, a coolant passage connected to an engine, a heat exchanger having a fin formed on the coolant passage inside the insulation container, a phase change material charged in the insulation container to exchange heat with flowing coolant, a phase change material temperature sensor, a pressure sensor, an engine coolant temperature sensor, and a control portion that circulates the coolant according to the driving condition of the engine and the coolant temperature such that the coolant exchanges heat with the phase change material. Accordingly, fuel for warming an engine or heating an interior room is reduced, a separate heating device or a warm up device such as a PTC heater can be replaced, quality of the exhaust gas is quickly improved, and there is a merit in overcoming environmental regulations.

Abstract: The heat exchanger may include a pipe unit mounted on a refrigerant line connecting a compressor with an evaporator of an air conditioning and adapted to flow a refrigerant and a LPG fuel returned from the engine, a first connecting member mounted at an end of the pipe unit to connect the pipe unit with the refrigerant line where the refrigerant line is connected to the compressor, and a second connecting member mounted at the other end of the pipe unit to connect the pipe unit with the refrigerant line where the refrigerant line is connected to the evaporator. The heat exchanger is configured so that the high-temperature LPG fuel is capable of exchanging heat with the refrigerant.

Abstract: A method for controlling a heat pump system is provided with air conditioning means connected to a controller and including a plurality of valves and expansion valves connected to each other through a refrigerant line and a bypass line, a compressor, an accumulator, an evaporator, an exterior condenser, an interior condenser, and an HVAC module having a PTC heater and a door at a warming mode, a cooling mode, a dehumidification mode, a dehumidification/defrosting mode, or an extremely low temperature dehumidification/defrosting mode according to selection of a driver.

Abstract: A heat pump system may include a cooling assembly disposed on a vehicle to circulate electric devices with coolant through a cooling line, wherein the cooling assembly includes a radiator disposed at a front side of the vehicle, uses a water pump to circulate coolant through the cooling line, and cools the supplied coolant through heat exchange with outside air, and a cooling fan that blows wind through the radiator, an air conditioning assembly connected to a refrigerant line connected to the cooling assembly to control heating and cooling, and a heat exchanger connected to the cooling line such that the coolant is circulated therein, selectively uses the waste heat generated from the electric devices according to modes to vary the temperature of the coolant, and is connected to the refrigerant line of the air conditioning assembly such that an inflow refrigerant exchanges heat with the coolant.

Abstract: A heat pump system for a vehicle includes a water cooled condenser that uses a coolant as a heat exchange media and uses waste heat generated from a motor and an electronic device to improve heating performance, efficiency, and dehumidifying performance. A control method is also described.