Abstract: A device is disclosed for distributing a two-phase refrigerating medium mass flow in a plate evaporator (12). The evaporator has a distribution channel (14) at the inlet side which may receive a refrigerating medium mass flow coming from an expansion valve (10) and several mutually spaced exchanger channels (16) which branch off from the distribution channel (14) in a substantially perpendicular direction. In order to ensure a uniform distribution of the refrigerant medium mass flow (28') among the exchanger channels (16), a porous body (38) is arranged in the distribution channel (14) between the refrigerating medium inlet (26) and the branch-off points of the exchanger channels (16). The porous body (38) is advantageously arranged in an outer throttle insert (32) which extends over at least part of the length of the distribution channel and in whose wall are located additional throttle openings (34) that lead to the exchanger channels (16).

Abstract: The expansion valve has a valve lifter which has an axial capillary bore, a shoulder which abuts the membrane and a tapered end which passes through the membrane with clearance forming a gap. A plunger whose movement is controlled by a magnetic coil is used to close and open the capillary bore.

Abstract: A thermostatic expansion valve assembly, particularly for a refrigerant cycle which includes a compressor, a condensor and an evaporator, operates in response to suction gas of the cycle and the valve assembly includes a housing defining a suction line for passage of the suction gas through the valve assembly. A valve tappet is acted upon by the suction gas for actuation of the valve assembly and a control member responsive to pressure and temperature receives the upper end of the valve tappet, with the suction gas acting on the valve tappet through the control member. The control member is formed in a cup-shaped configuration opening toward the suction line and includes a rim region projecting into the suction line and a circumferential region having a greater wall thickness than the rim region. An annular shoulder is formed on the control member and a cover plate is provided for the valve housing.