公开(公告)号：US20180216749A1

公开(公告)日：2018-08-02

申请号：US15747231

申请日：2016-07-25

Applicant: Danfoss A/S

Inventor： Anders Pedersen ,  Leo Finn Jensen

IPC: F16K31/40

Abstract: The invention relates to a valve (1) comprising a main valve (2), a pilot valve (3), a housing (4), an inlet (5) and an outlet (8). Opening and closing of the main valve (2) is controlled by the pilot valve (3). A pilot valve seat (10) is arranged in a diaphragm (6). A pilot chamber (11) is arranged in the housing (4) separated from the inlet (5) and the outlet (8) by the diaphragm (6). Task of the invention is to provide a valve with a lower cost. According to the invention a support member (17) supports the diaphragm (6), wherein the support member (17) is guided in the housing, and wherein a radial gap (26) is arranged between the radially outer end of the diaphragm (6) and the housing (4) in a radial direction perpendicular to the opening direction of the pilot valve (3). Thereby, a cheaper, less resistant material for the diaphragm can be used.

公开(公告)号：US12117216B2

公开(公告)日：2024-10-15

申请号：US17785200

申请日：2020-12-15

Applicant: Danfoss A/S

Inventor： Hans Kurt Petersen ,  Leo Finn Jensen ,  Anders Pedersen ,  Detlet Matzen ,  Alexandra Papadimitriou

IPC: F25B41/35 ,  F16K1/02 ,  F16K1/04 ,  F16K1/12

CPC classification number: F25B41/35 ,  F16K1/02 ,  F16K1/04 ,  F16K1/12 ,  F25B2341/06 ,  Y02B30/70

Abstract: 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.

公开(公告)号：US10767786B2

公开(公告)日：2020-09-08

申请号：US15747231

申请日：2016-07-25

Applicant: Danfoss A/S

Inventor： Anders Pedersen ,  Leo Finn Jensen

IPC: F16K31/40

Abstract: The invention relates to a valve (1) comprising a main valve (2), a pilot valve (3), a housing (4), an inlet (5) and an outlet (8). Opening and closing of the main valve (2) is controlled by the pilot valve (3). A pilot valve seat (10) is arranged in a diaphragm (6). A pilot chamber (11) is arranged in the housing (4) separated from the inlet (5) and the outlet (8) by the diaphragm (6). Task of the invention is to provide a valve with a lower cost. According to the invention a support member (17) supports the diaphragm (6), wherein the support member (17) is guided in the housing, and wherein a radial gap (26) is arranged between the radially outer end of the diaphragm (6) and the housing (4) in a radial direction perpendicular to the opening direction of the pilot valve (3). Thereby, a cheaper, less resistant material for the diaphragm can be used.

公开(公告)号：US10948105B2

公开(公告)日：2021-03-16

申请号：US16076877

申请日：2017-02-07

Applicant: Danfoss A/S

Inventor： Jesper Schmidt Hansen ,  Leo Finn Jensen ,  Anders Pedersen

IPC: F16K47/14 ,  F16K31/40

Abstract: A valve arrangement comprising a valve housing, a valve inlet, a valve outlet and a diaphragm assembly for controlling a fluid flow through the valve housing from the valve inlet to the valve outlet, the diaphragm assembly comprising a diaphragm and a diaphragm plate at least partially covering the diaphragm, the diaphragm comprising one or more equalization holes passing through the diaphragm and the diaphragm plate comprising one or more equalization openings passing through the diaphragm plate, the equalization holes being aligned with the equalization openings. The diaphragm assembly comprises an engagement zone engaging the diaphragm in order to rotationally fix the diaphragm and the diaphragm plate with respect to each other so that the equalization holes will keep aligned with the equalization openings to ensure proper function of the valve arrangement at all times.

公开(公告)号：US20160153576A1

公开(公告)日：2016-06-02

申请号：US14900669

申请日：2014-06-26

Applicant: DANFOSS A/S

Inventor： Ole Mortensen ,  Michael Birkelund ,  Ole Holst Christensen ,  Kristjan Arnor Gretarsson ,  Anders Pedersen

IPC: F16K31/06

CPC classification number: F16K31/06 ,  F16F1/047 ,  F16K31/404

Abstract: The invention relates to a solenoid valve with a housing as well as an inlet and an outlet, wherein the solenoid valve further comprises a valve element and an orifice, wherein the orifice comprises an orifice inlet and an orifice outlet. In order to increase the maximum operating pressure differential of the solenoid valve the orifice is provided in a membrane and the orifice has a diffuser characteristic in a direction from the orifice inlet to the orifice outlet.

Abstract translation: 本发明涉及具有壳体以及入口和出口的电磁阀，其中电磁阀还包括阀元件和孔口，其中孔口包括孔口入口和孔口出口。 为了增加电磁阀的最大工作压差，孔口设置在膜中，并且孔口在从孔口入口到孔口出口的方向上具有扩散器特性。