US 2022/0178460 A1Published application

Valve arrangement

AssigneeNeoperl GmbH

InventorsYichao BIAN, Marc TEMPEL

Life of this patent

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Abstract

A valve arrangement having a main valve and having a pilot valve which is provided for controlling the main valve and which is inserted into a pilot valve receptacle in an insertion direction, wherein, through closure of the pilot valve, a pressure is able to be built up within a pressure chamber which is closed off by a diaphragm, whereby a valve seat between a main valve inlet and a main valve outlet is able to be closed off. By opening the pilot valve, it is possible to set a release of pressure within the pressure chamber by water flowing away via an inflow, connected to the pressure chamber, of the pilot valve receptacle and via a pilot valve inlet, adjoining the latter and formed by a main body of the pilot valve. A pilot valve outlet, formed by the main body, and via an outflow, adjoining said pilot valve outlet, into the main valve outlet, opens into the main valve outlet on the outflow side of the diaphragm. The pilot valve inlet and the pilot valve outlet are arranged offset from one another along a longitudinal axis of the pilot valve.

Claims23

Dependent claims

A valve arrangement (1, 50, 75, 100), comprising:

a main valve (2) including a valve seat (3) between a main valve inlet (4) and a main valve outlet (5), a diaphragm (6) which selectively closes off and opens up the valve seat (3), and a pressure chamber (7) which is closed off by the diaphragm (6) and by which the diaphragm (6) is switchable via application of pressure;
a pilot valve receptacle formed on or connected to the main housing
a pilot valve (8) configured to control a release of pressure of the pressure chamber (7) into the main valve outlet (5) of the main valve (2), the pilot valve (8) including a main body (9) on which a pilot valve inlet (10) and a pilot valve outlet (11) are formed, the pilot valve inlet (10) is, via the pilot valve (8), selectively connectable to the pilot valve outlet (11) and separable therefrom, and the main body (9) is inserted into the pilot valve receptacle (12) in an insertion direction (13);
wherein the pilot valve receptacle (12) has an inflow (14) corresponding to the pilot valve inlet (10) and has an outflow (15) corresponding to the pilot valve outlet (11), the inflow (14) is connected to the pressure chamber (7) and the outflow (15) opens into the main valve outlet (5) on the outflow side of the diaphragm (6);
wherein the pilot valve inlet (10) and the pilot valve outlet (11) are arranged offset from one another at least in the insertion direction (13);
and a sealing element (16) is arranged, at least in a position of use, between the pilot valve inlet (10) and the pilot valve outlet (11), the sealing element (16) being insertable with the pilot valve in and acting at least partially along the insertion direction (13), and the sealing element (16) forms at least an axial seal between the pilot valve inlet (10) and the pilot valve outlet (11) between the main body (9) and the pilot valve receptacle (12).

3 more elements

A valve arrangement (1, 50, 75, 100), comprising:

a main valve (2) including a valve seat (3) between a main valve inlet (4) and a main valve outlet (5), a diaphragm (6) which selectively closes off and opens up the valve seat (3), and a pressure chamber (7) which is closed off by the diaphragm (6) and by which the diaphragm (6) is switchable via application of pressure;
a pilot valve receptacle formed on or connected to the main housing
a pilot valve (8) configured to control a release of pressure of the pressure chamber (7) into the main valve outlet (5) of the main valve (2), the pilot valve (8) including a main body (9) on which a pilot valve inlet (10) and a pilot valve outlet (11) are formed, the pilot valve inlet (10) is, via the pilot valve (8), selectively connectable to the pilot valve outlet (11) and separable therefrom, and the main body (9) is inserted into the pilot valve receptacle (12) in an insertion direction (13);
wherein the pilot valve receptacle (12) has an inflow (14) corresponding to the pilot valve inlet (10) and has an outflow (15) corresponding to the pilot valve outlet (11), the inflow (14) is connected to the pressure chamber (7) and the outflow (15) opens into the main valve outlet (5) on the outflow side of the diaphragm (6);
wherein the pilot valve inlet (10) and the pilot valve outlet (11) are arranged offset from one another at least in the insertion direction (13);
wherein the pilot valve (8) further includes a valve plunger (23);
and at least one of (a) a seal (29) of an elastically deformable material arranged between the pilot valve inlet (10) and at least one of the pilot valve outlet (11) or a valve seat (33) of the pilot valve (8), or (b) a seal, at least in a closed state of the pilot valve (8), in sealing cooperation with the valve plunger (23).

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/679,269Filed 24 Feb 2022
Priority: DE 202017105426.87 Sep 2017
Published: 9 Jun 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

F16K 31/365
In which fluid from the circuit is constantly supplied to the fluid motor: the fluid acting on a diaphragm
F16K 7/17
Arranged to be deformed against a flat seat: the diaphragm being actuated by fluid pressure
F16K 27/0236
Of lift valves: diaphragm cut-off apparatus
F16K
Valves

Family

Application16/638,331Continuation in part · filed 11 Feb 2020
Application17/679,269Continuation in part
US 11,287,052 B2Related patent
US 11,892,094 B2Related patent
US 2020/0362983 A1Published application
US 2022/0178460 A1This patent

From the US filing history. Foreign family members aren’t listed.