Abstract: An internal heat exchanger unit for use in refrigerant circuits of automotive air conditioning systems. The internal heat exchanger includes a casing within which is located an accumulator, spaced thereapart so as to define a gap between the two components. Located within the gap is a coil-shaped fin tube. The fins of the fin tube include bend end portions at spaced apart locations about the fins, and the bent end portions defining an outer dimension of the fins that substantially corresponds to the gap width.

Abstract: A refrigerant accumulator for refrigerant circuits having a container with an inlet for a two-phase mixture and an outlet for the refrigerant vapor. The accumulator includes a baffle provided as a separator in the upper part of the refrigerant accumulator. The baffle includes means for the collection of liquid refrigerant, by which the liquid refrigerant is leadable into the lower region of the refrigerant accumulator.

Abstract: Pressure-regulating valve having a throttle mounted in a tube section such that it can be pivoted about a pivot axis from an open position into a closed position. The throttle having a pressure relief valve mounted therein.

Abstract: An exhaust-gas heat recovery appliance having a heat-exchanger line and a bypass line and a heat exchanger being arranged in the region of the heat-exchanger line. At least one valve device, for the purpose of influencing the mass flow of exhaust gas, is provided in the heat-exchanger line and the bypass line. Further, at least the heat-exchanger line has a slope in the direction of flow of the exhaust gas in the installed position.

Abstract: The invention provides a device for heating, ventilating and air conditioning in vehicles and includes a temperature flap arranged rotatable in the region of a hot air channel and a cold air channel. The temperature flap is designed to largely reduce the temperature dip of the mixed air in an outlet channel, with reference to an associated temperature/rotational position curve. The temperature flap includes a rotational plate with at least one flap opening and at least one dosing element assigned to the flap opening. In the region of the closing element, an opening mechanism, dependent on the rotational position of the temperature flap, actuates the dosing element and opens the flap opening.

Abstract: Pressure-regulating valve having a throttle mounted in a tube section such that it can be pivoted about a pivot axis from an open position into a closed position. The throttle having a pressure relief valve mounted therein.

Abstract: An exhaust-gas heat recovery appliance having a heat-exchanger line and a bypass line and a heat exchanger being arranged in the region of the heat-exchanger line. At least one valve device, for the purpose of influencing the mass flow of exhaust gas, is provided in the heat-exchanger line and the bypass line. Further, at least the heat-exchanger line has a slope in the direction of flow of the exhaust gas in the installed position.