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公开(公告)号：WO2020127062A1
公开(公告)日：2020-06-25
申请号：PCT/EP2019/085364
申请日：2019-12-16
申请人： DANFOSS A/S
发明人： LARSEN, Sigurd , HARCK, Kurt , KRISTENSEN, Søren Sottrup , REESE, Birthe Nissen , VAGNSHOLDT, Charlotte Vibeke Pingel
摘要： Electric expansion valve (1) comprising a valve housing (12), a valve seat (2), a valve element (3) cooperating with the valve seat (2), a drive driving the valve element (3) and comprising a rotary motor (4) having an axis (17) of rotation. The valve element (3) is connected to the motor (4) and has a possibility of radial displacement between the rotor (6) and the valve element (3) with respect to the axis (17) of rotation. Such an expansion valve should ensure a long lifetime with low production costs. To this end the valve element (3) is connected to the motor (4) by means of a fixing element (16) which guarantees a defined position of the valve element (3) in axial direction while allowing the radial displacement between the axis (17) of rotation and the valve element (3).
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公开(公告)号：WO2020126203A1
公开(公告)日：2020-06-25
申请号：PCT/EP2019/080574
申请日：2019-11-07
申请人： DANFOSS A/S
摘要： Valve (1), in particular expansion valve, is described comprising a valve element driven by an actuator and being arranged in a valve housing arrangement (4, 5, 15), wherein the valve housing arrangement (4, 5, 15) comprises a housing (4), a tube (15) connected to the housing (4) and at least one connector (5) extending from the housing (4), wherein the actuator comprises a rotary motor having a stator and a rotor, the rotor being arranged inside the tube (15) and the stator being arranged outside the tube (15). A simple way is needed to position the stator and the rotor relative to each other. To this end the stator is fixed to a stator holder (16) which is arranged around the tube (15) and connected to the housing arrangement (4, 5, 15).
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