公开(公告)号：US20230011997A1

公开(公告)日：2023-01-12

申请号：US17785200

申请日：2020-12-15

申请人： Danfoss A/S

发明人： Hans Kurt PETERSEN ,  Leo Finn JENSEN ,  Anders PEDERSEN ,  Detlet MATZEN ,  Alexandra PAPADIMITRIOU

IPC分类号： F25B41/35

摘要： An expansion valve (1) is described to include a housing (2) having in inlet port (3) and an outlet port (4), a valve seat (5) arranged between the inlet port (3) and the outlet port (4), a valve element (6) movable over an operating stroke between a closed position at the valve seat (5) and an opened position away from the valve seat (5), and an actuator (7), wherein the actuator (7) has an electric rotary motor (8) acting on the valve element (5) by means of a threaded spindle (10) and a nut (9), wherein one of spindle (10) and nut (9) is rotatably driven by the motor (8) and the other one is rotatably fixed. Such an expansion valve should have the possibility for a simple assembly. To this end, in a disassembled condition of housing (2) and actuator (7), the actuator (7) has a mounting stroke which is at least two times the operating stroke, wherein the mounting stoke extends the operating stroke.