Fluid control valve assembly

Patent metadata

Field	Value
Publication number	US-2016356203-A1
Application number	US-201615241400-A
Country	US
Kind code	A1
Filing date	Aug 19, 2016
Priority date	Apr 27, 2010
Publication date	Dec 8, 2016
Grant date	—

Abstract

Provided is a fluid control valve assembly which reduces pressure loss as much as possible in a fluid passage line including a fluid control valve, thereby mini-minimizing the pressure for a fluid to pass therethrough and thus ensuring a required amount of flow without upsizing the overall assembly. The fluid control valve assembly is adapted such that an upstream pipe ( 17 ) forming an upstream fluid passageway and tilted at a predetermined angle relative to a valve axis (L) is provided to face an upstream chamber ( 11 ). The upstream chamber is formed upstream of a valve portion ( 12 ) which has a valve seat ( 13 ) and a valve body ( 14 ) in a valve housing ( 10 ) and which can open and close the fluid passageway. The wall surface of the upstream chamber is integrated with a swelling ( 20 ), which is projected in the chamber to thereby rectify and guide the fluid flowing therein through the upstream pipe so that the fluid smoothly flows to the valve portion.

First claim

What is claimed is:

1 . A fluid control valve assembly comprising:
a valve unit configured to open and close a fluid flow path to control an amount of fluid flow; and an upstream chamber disposed upstream of the valve unit, the upstream chamber formed of spherical walls including an inwardly protruding bulge, the upstream chamber defined by the spherical walls, the inwardly protruding bulge, an opening of an upstream pipe configured to supply fluid to the valve unit, and the valve unit, wherein the upstream pipe is disposed on a portion of the upstream chamber and configured to supply fluid to the valve unit.

2 . The fluid control valve assembly according to claim 1 , wherein the fluid is supplied at a predetermined angle to a valve axis of the valve unit.

3 . The fluid control valve assembly according to claim 2 , wherein the inwardly protruding bulge is disposed between a valve seat of the valve unit and the opening of the upstream pipe.

4 . The fluid control valve assembly according to claim 2 , wherein the predetermined angle is non-orthogonal and non-parallel to the valve axis.

5 . The fluid control valve assembly according to claim 2 , wherein the inwardly protruding bulge is disposed on an opposite side of the valve axis from the opening of the upstream pipe.

6 . The fluid control valve assembly according to claim 2 , wherein the inwardly protruding bulge does not intersect the valve axis.

7 . The fluid control valve assembly according to claim 1 , wherein the inwardly protruding bulge has a shape of a portion of an outer surface of a cylinder.

8 . A fluid control valve assembly comprising:
a valve inlet; a valve outlet; and a chamber for transitioning the flow from the valve inlet to the valve outlet and located upstream of a seat of the valve, the chamber being defined by spherical walls intersected by the valve inlet on one side and a first inwardly protruding substantially cylindrical surface on an opposite side.

9 . The fluid control valve assembly according to claim 8 , wherein the valve inlet defines a first flow axis and the valve outlet defines a second flow axis and the chamber transitions the flow from the first axis to the second axis, and
wherein the first cylindrical surface is oriented perpendicularly to the first flow axis and the second flow axis.

10 . The fluid control valve assembly according to claim 9 , wherein the first flow axis is non-parallel and non-orthogonal to the second flow axis.

11 . The fluid control valve assembly according to claim 9 , wherein the first substantially cylindrical surface does not intersect the valve axis.

12 . A fluid control valve assembly comprising:
a valve inlet; a valve outlet; and a chamber for transitioning the flow from the valve inlet to the valve outlet and located upstream of a seat of the valve, the chamber being defined by spherical walls intersected by the valve inlet on one side and a rectifying means for rectifying the fluid flow and reducing pressure loss in the valve assembly.

13 . The fluid control valve assembly according to claim 12 , wherein the valve inlet defines a first flow axis and the valve outlet defines a second flow axis and the chamber transitions the flow from the first axis to the second axis.

14 . The fluid control valve assembly according to claim 13 , wherein the first flow axis is non-parallel and non-orthogonal to the second flow axis.

15 . The fluid control valve assembly according to claim 13 , wherein the rectifying means for rectifying the fluid flow and reducing pressure loss in the valve assembly does not intersect the valve axis.

16 . The fluid control valve assembly according to claim 1 , wherein the predetermined angle is non-parallel to the valve axis.

17 . The fluid control valve assembly according to claim 1 , wherein the predetermined angle is non-orthogonal to the valve axis.

18 . The fluid control valve assembly according to claim 8 , wherein the first flow axis is non-parallel to the second flow axis.

19 . The fluid control valve assembly according to claim 8 , wherein the first flow axis is non-orthogonal to the second flow axis.

20 . The fluid control valve assembly according to claim 12 , wherein the first flow axis is non-parallel to the second flow axis.

21 . The fluid control valve assembly according to claim 12 , wherein the first flow axis is non-orthogonal to the second flow axis.

Assignees

• Nippon Thermostat Kk

Inventors

• Kusakabe Fumito

Classifications

• F01P2007/146

  using valves · CPC title

• F01P7/16 Primary

  by thermostatic control · CPC title

• F16K31/002

  actuated by temperature variation (thermo-electric F16K31/025) · CPC title

• G05D23/022

  the sensing element being placed within a regulating fluid flow · CPC title

• F16K27/02

  of lift valves (for reducing the flow resistance of screw-spindle lift-valves F16K1/06) · CPC title