Valve device

Patent metadata

Field	Value
Publication number	US-11360496-B2
Application number	US-201916971453-A
Country	US
Kind code	B2
Filing date	Jan 23, 2019
Priority date	Feb 23, 2018
Publication date	Jun 14, 2022
Grant date	Jun 14, 2022

Abstract

The invention relates to a valve device ( 1 ) having a pressure regulator ( 3 ) for a flowing gas and a housing ( 4 ). The pressure regulator ( 3 ) includes a diaphragm ( 31 ), a spring ( 34 ), a control actuator ( 32 ), and a control seat ( 33 ). The control actuator ( 32 ) includes a plate-like portion ( 32 ′) and a rod-like portion ( 32 ″) adjacent to one side of the plate-like portion ( 32 ′), the control seat ( 31 ) encompassing the rod-like portion ( 32 ″) of the control actuator ( 32 ). The diaphragm ( 31 ) and the control actuator ( 32 ) are mechanically coupled to each other such that an axial movement of the control actuator ( 32 ) moves the diaphragm ( 31 ). In addition, the spring ( 34 ) and the control actuator ( 32 ) are mechanically coupled to each other. The control seat ( 33 ) limits a movement of the control actuator ( 32 ). In one state, the control seat ( 33 ) and the control actuator ( 32 ) prevent the gas from flowing. The control seat ( 33 ) is configured as a ring arranged in a recess ( 40 ) of the housing ( 4 ).

First claim

The invention claimed is:

1. A valve device, comprising:
a pressure regulator for a flowing gas and including a housing,
the pressure regulator including a diaphragm, a spring, a control actuator, and a control seat,
the housing and the diaphragm encompassing a flow-through chamber,
the pressure regulator including a regulator cover which is connected to the housing,
the regulator cover and the diaphragm encompassing a compensating chamber,
the control actuator including a plate-like portion and a rod-like portion adjacent to one side of the plate-like portion,
the control seat encompassing the rod-like portion of the control actuator,
the diaphragm and the control actuator being mechanically coupled to each other such that an axial movement of the control actuator moves the diaphragm,
the spring and the control actuator being mechanically coupled to each other in such a way that the spring urges the control actuator toward a face side of the control seat,
the control seat limiting a movement of the control actuator,
the control seat and the control actuator, in one state, preventing the gas from flowing,
the control seat being configured as a ring arranged in a recess of the housing, and
the control seat having at least one interruption in one face side so that two merlons are formed laterally of the interruption and so that a gas communication takes place between an interior of the control seat and the flow-through chamber even in the event that the control actuator rests on the face side, wherein:

a free end of the rod-like portion of the control actuator is connected to a sealing element,
in one position of the control actuator, the sealing element closes a lower face side of the control seat,
a control gap is formed between the sealing element and the lower face side of the control seat, which is dependent on an axial position of the control actuator,
the sealing element is shaped as a hemisphere,
the sealing element includes a chamfer at a transition from a spherical portion to a planar portion of the hemisphere, wherein the planar portion of the hemisphere faces towards the lower face side of the control seat and the chamfer comes into contact with the lower face side of the control seat, and
the control seat has a tapering inner contour.

2. The valve device according to claim 1 , wherein the control seat has a conically tapering inner contour.

3. The valve device according to claim 1 , wherein the regulator cover has a compensating hole which is in communication with a compensating chamber that is encompassed by the regulator cover and the diaphragm.

Assignees

• Truma Geraetetechnik Gmbh & Co Kg

Inventors

• REININGER Dennis

Classifications

• Y10T137/7825

  Rectilinear valve stem rigid with reactor surface · CPC title

• G05D16/0655 Primary

  using one spring-loaded membrane · CPC title

• G05D16/0688

  characterised by the form of the obturator · CPC title

• F16K31/365

  the fluid acting on a diaphragm · CPC title