Abstract: A coolant tank (15) has a bottom (16) and a tubular side wall (17) extending upright from an outer peripheral edge of the bottom (16). The side wall (17) has a plurality of outwardly protruding protrusions (18a, 18b, 18c, and 18d) formed thereon at predetermined intervals in the vertical direction. Providing the protrusions (18a, 18b, 18c, and 18d) increases the surface area of the side wall (17), whereby heat exchange with outside air is facilitated so that a coolant in the tank (15) is cooled down efficiently.

Abstract: An air conditioning apparatus includes a refrigerating cycle supplying the supercritical refrigerant pressurized by the variable displacement compressor to the outdoor heat exchanger, the expansion valve and the indoor heat exchanger, in sequence and subsequently return the supercritical refrigerant to the variable displacement compressor. The apparatus further includes a displacement control unit that establishes a limit value derived from the engine speed and further controls a discharge volume of the compressor prior to the control in the opening degree of the expansion valve, on a basis of the so-established limit value.

Abstract: A steering apparatus for a vehicle has: a steering shaft rotatable with a steering force applied from a steering wheel; a cable unit for transmitting a rotational force with an output member and a pair of cable wires; and a speed reducing gear disposed between the steering shaft and the cable unit. The output member makes a rotation in such a manner that the pair of the cable wires are pulled relative to each other. The rotational force is transmitted from the steering shaft to a side having a tire-and-wheel.

Abstract: An air conditioning apparatus includes a refrigerating cycle supplying the supercritical refrigerant pressurized by the variable displacement compressor to the outdoor heat exchanger, the expansion valve and the indoor heat exchanger, in sequence and subsequently return the supercritical refrigerant to the variable displacement compressor. The apparatus further includes a displacement control unit that establishes a limit value derived from the engine speed and further controls a discharge volume of the compressor prior to the control in the opening degree of the expansion valve, on a basis of the so-established limit value.

Abstract: A cooling cycle with a high-pressure side operating in a supercritical area of refrigerant includes a temperature sensor for sensing a temperature of cooled refrigerant between a gas cooler and an internal heat exchanger, a pressure sensor for sensing a pressure of cooled refrigerant between the two, and a controller for controlling at least one of a compressor and a throttling device in accordance with the sensed temperature and the sensed pressure.

Abstract: A steering apparatus for a vehicle has: a steering shaft rotatable with a steering force applied from a steering wheel; a cable unit for transmitting a rotational force with an output member and a pair of cable wires; and a speed reducing gear disposed between the steering shaft and the cable unit. The output member makes a rotation in such a manner that the pair of the cable wires are pulled relative to each other. The rotational force is transmitted from the steering shaft to a side having a tire-and-wheel.

Abstract: A heat pump type air conditioner for a vehicle has a refrigeration cycle constituted by a compressor, an external heat exchanger, a refrigerant valve unit and an internal heat exchanger unit. The refrigerant valve unit includes first and second flow control valves, and the internal heat exchanger unit includes an auxiliary internal heat exchanger and a main internal heat exchanger. In the refrigeration cycle, the first flow control valve, the auxiliary internal heat exchanger, the second flow control valve and the main internal heat exchanger are serially connected in the order of mention. The main and auxiliary internal heat exchangers change their function between an evaporator and a condenser according to the controlled state of the first and second flow control valve.

Abstract: A cooling cycle with a high-pressure side operating in a supercritical area of refrigerant includes a temperature sensor for sensing a temperature of cooled refrigerant between a gas cooler and an internal heat exchanger, a pressure sensor for sensing a pressure of cooled refrigerant between the two, and a controller for controlling at least one of a compressor and a throttling device in accordance with the sensed temperature and the sensed pressure.

Abstract: A heat pump type air conditioning system (A) for an automotive vehicle. The heat type air conditioning system (A) comprises a first unit (10) including a heater core (11) through which an engine coolant of an engine flows, and a first heat exchanger (12) which forms part of a refrigeration cycle including a compressor (1) and a first condenser (3), in which a refrigerant circulates in the refrigeration cycle. A second unit (20) is provided including a second condenser (21) and a second heat exchanger (22) which are fluidly connected in parallel with the first heat exchanger (12). A valve (V2) is fluidly connected in series with the second condenser (21) and disposed such that a part of the refrigerant is introduced through the valve into the second condenser (21) and the second heat exchanger (22).

Abstract: A heat pump type air conditioning system (A) for an automotive vehicle. The heat type air conditioning system (A) comprises a first unit (10) including a heater core (11) through which an engine coolant of an engine flows, and a first heat exchanger (12) which forms part of a refrigeration cycle including a compressor (1) and a first condenser (3), in which a refrigerant circulates in the refrigeration cycle. A second unit (20) is provided including a second condenser (21) and a second heat exchanger (22) which are fluidly connected in parallel with the first heat exchanger (12). A valve (V2) is fluidly connected in series with the second condenser (21) and disposed such that a part of the refrigerant is introduced through the valve into the second condenser (21) and the second heat exchanger (22).