US 5,396,918 A · Water pressure regulator and method for regulating pressure through a valve

Abstract

An improved high volume, straight through, low turbulent flow pressure regulating valve is provided by utilizing a hallow cylindrical valve which is selectively and telescopically disposed over an aligned conforming biscuit around which biscuit and through which valve the fluid flows. The valve does not contact the biscuit so that valve chatter is impossible. Furthermore, the absence of a valve seat or other lip reduces the turbulence introduced into fluid flow within the valve body thereby also increasing flow volume capacity. Movement of the valve is controlled in response to pressure within the valve body by means of rolling diaphragm, which is fluidically communicated to the interior of the valve body. The diaphragm, which acts as a piston, is connected between the valve body and the valve member. Increased pressure within the valve acts against the diaphragm forcing the valve member over the biscuit to reduce flow and pressure. The diaphragm, acting as a piston, acts against a prebiased spring. The amount of bias on the spring is adjusted by a collar threadably connected on the exterior of the valve. The collar is manually accessible and adjusted by turning the collar on its threaded connection to the valve body and then compressing or relaxing the compression spring against which the diaphragm acts.

Claims19

Dependent claims

An improvement in a fluidic pressure regulator having an output and comprising a valve body having a single in-line flow path defined therethrough for passage of fluid through which all fluid flows, and a movable valve member, said valve member being tubular, and a passage defined through said valve member for flow of said fluid, said valve member having an end with an inner radial dimension, said valve body having a biscuit connected thereto within said flow of fluid through said valve body, said biscuit having an outer radial dimension, said improvement comprising:

valve movement means for telescopically and selectively disposing said end of said valve member over and around said biscuit, said inner radial dimension of said valve member conforming with and being greater in each radial direction than the outer radial dimension of said biscuit over which said movable valve member is selectively disposed to define a minimum predetermined clearance therebetween, so that no contact with said biscuit occurs and so that flow of fluid through said pressure regulator continues although being selectively restricted by said valve member, but never being shut off, said valve movement means communicating only with said in-line flow path downstream from said valve member to respond to pressure at said output of said pressure regulator;
and
control means for selectively controlling disposition of said valve member over said biscuit in response to a selected degree of pressure regulation desired for fluid flowing through said valve body,
whereby a straight through, high volume, flow through regulator is provided.

1 more element

An improvement in a fluidic pressure regulator comprising a body having an in-line flow path defined therethrough for passage of fluid, and a movable valve member, said valve member being tubular, and a passage defined through said valve member for flow of said fluid, said valve member having an end with an inner radial dimension, said valve body having a biscuit connected thereto within said flow of fluid through said valve body, said biscuit having an outer radial dimension, said improvement comprising:

valve movement means for telescopically and selectively disclosing said end of said valve member over and around said biscuit, said inner radial dimension of said valve member conforming with and being greater in each radial direction than the outer radial dimension Of said biscuit over which said movable valve member is selectively disposed, wherein at least a portion of said biscuit juxtaposed to said movable valve member has an outer diameter, and where said end of said movable valve member has an opening defined therein communicating with said passage for said fluid therethrough, said opening having a fixed inner diameter, said inner diameter of said valve member freely sliding over said outer diameter of said biscuit;
and
control means for selectively disposing said valve member over said biscuit according to a selectively predetermined degree of pressure regulation of fluid flowing through said valve body,
wherein said movable valve member is a cylindrical tube and wherein said valve movement means for telescopically disposing said movable valve member over said biscuit comprises a diaphragm fiuidically communicated with said fluid flow within said body and coupled between said valve member and said valve body, said diaphragm acting as a piston to force said valve member in a predetermined direction within said valve body over said biscuit, said valve member being supported by and longitudinally slidable within said valve body along said longitudinal axis of said valve member, said diaphragm being fiuidically communicated with said flow within said valve body by a fiuidic resistance means for providing dampening between response of said diaphragm acting as a piston and pressure fluctuations of said fluid within said valve body,
whereby a straight through, high volume, flow through regulator is provided.

2 more elements

An improvement in a fiuidic pressure regulator comprising a body having an in-line flow path defined therethrough for passage of fluid, and a movable valve member, said valve member being tubular, and a passage defined through said valve member for flow of said fluid, said valve member having an end with an inner radial dimension, said valve body having a biscuit connected thereto within said flow of fluid through said valve body, said biscuit having an outer radial dimension, said improvement comprising:

valve movement means for telescopically and selectively disposing said end of said valve member over and around said biscuit, said inner radial dimension of said valve member conforming with and being greater in each radial direction than the outer radial dimension of said biscuit over which said movable valve member is selectively disposed;
and
control means for selectively disposing said valve member over said biscuit according to a selectively predetermined degree of pressure regulation of fluid flowing through said valve body,
wherein said control means comprises adjustment means for varying the degree of control applied to said valve movement means by said control means according to the magnitude of pressure communicated to said valve movement means from said flow within said valve body;
and
wherein said adjustment means is manually manipulated and accessible outside side valve body to permit arbitrarily variable control of pressure regulation by said valve movement means,
whereby a straight through, high volume, flow through regulator is provided.

4 more elements

Dependencies are inferred from the claim text.

Water pressure regulator and method for regulating pressure through a valve

Life of this patent

Water pressure regulator and method for regulating pressure through a valve

Life of this patent

Abstract

Claims19