Gas regulator

Claim 2

In a gas pressure regulator for regulating the pressure of a gas stream flowing through it so that the pressure is substantially constant on the outlet side despite variations in pressure on the inlet side and in the rate of flow through the regulator, a housing having a diaphragm chamber with a vertical axis and a gas passage spaced from the chamber and located substantially along a horizontal line perpendicular to said chamBer axis, said housing having a valve seat intersecting an intermediate portion of said passage and dividing it into an inlet section and an outlet section, a diaphragm operatively mounted in said chamber, a valve secured to the diaphragm for movement therewith along said chamber axis, said valve being located in said gas passage and cooperating with said valve seat to regulate the pressure in the outlet section, and means providing a plurality of sensing passages opening respectively at one end into different and substantially separated points of said outlet section and at the other end into said diaphragm chamber to expose one side of said diaphragm to the pressure in different points of said outlet section, said one side of said diaphragm being isolated from said passage except for communication with it through said sensing passages, said sensing passages being angularly displaced from each other by about 90*.

Claim 3

A regulator as set forth in claim 1 wherein one of said sensing passages is located in substantially the 12 o''clock position with respect to the midplane of the regulator.

Claim 4

In a gas pressure regulator for regulating the pressure of a gas stream flowing through it so that the pressure is substantially constant on the outlet side despite variations in pressure on the inlet side and in the rate of flow through the regulator, a housing having a diaphragm chamber with a vertical axis and a gas passage spaced from the chamber and located substantially along a horizontal line perpendicular to said chamber axis, said housing having a valve seat intersecting an intermediate portion of said passage and dividing it into an inlet section and an outlet section, a diaphragm operatively mounted in said chamber, a valve secured to the diaphragm for movement therewith along said chamber axis, said valve being located in said gas passage and cooperating with said valve seat to regulate the pressure in the outlet section, said valve and seat being substantially conical and the axis of the cone being substantially coaxial with the chamber axis, and means providing at least two sensing passages opening respectively at one end into different and substantially separated points of said outlet section and at the other end into said diaphragm chamber to expose one side of said diaphragm to the pressure in different points of said outlet section, each of said separated points being located transversely of said vertical axis a substantial distance downstream from said vertical axis, said one side of said diaphragm being isolated from said passage except for communication with it through said sensing passages.

Claim 5

In a gas pressure regulator for regulating the pressure of a gas stream flowing through it so that the pressure is substantially constant on the outlet side despite variations in pressure on the inlet side and in the rate of flow through the regulator, a housing having a diaphragm chamber with a vertical axis and a gas passage spaced from the chamber and located substantially along a horizontal line perpendicular to said chamber axis, said housing having a valve seat intersecting an intermediate portion of said passage and dividing it into an inlet section and an outlet section, a diaphragm operatively mounted in said chamber, a valve secured to the diaphragm for movement therewith along said chamber axis, said valve being located in said gas passage and cooperating with said valve seat to regulate the pressure in the outlet section, said valve and seat being substantially conical and the axis of the cone being substantially coaxial with the chamber axis, and means providing at least two sensing passages opening respectively at one end into different and substantially separated points of said outlet section and at the other end into said diaphragm chamber to expose one side of said diaphragm to the pressure in different points of said outlet section, each of said separated points being located transversely of said vertical axis a substantial distance downstream from said vertical axis, said one side of said diaphragm being isolated from said passage except for communication with it through said sensing passages.

Claim 6

A regulator as set forth in claim 3 wherein said housing includes a wall forming the bottom of the diaphragm chamber and an upper part of the gas passage and a substantially cylindrical section extending substantially at right angles to said vertical axis to form said outlet section, said sensing passages being formed in and extending through said wall into said cylindrical section.

Claim 7

In a gas pressure regulator for regulating the pressure of a gas stream flowing through it so that the pressure is substantially constant on the outlet side despite variations in pressure on the inlet side and in the rate of flow through the regulator, a housing having a diaphragm chamber with a vertical axis and a gas passage spaced from the chamber and located substantially along a horizontal line perpendicular to said chamber axis, said housing having a valve seat intersecting an intermediate portion of said passage and dividing it into an inlet section and an outlet section, a diaphragm operatively mounted in said chamber, a valve secured to the diaphragm for movement therewith along said chamber axis, said valve being located in said gas passage and cooperating with said valve seat to regulate the pressure in the outlet section, and means providing a plurality of sensing passages opening at one end respectively angularly different and substantially separated points of sAid outlet section and at the other end into said diaphragm chamber to expose one side of said diaphragm to the pressure in substantially different points of said outlet section, said one side of said diaphragm being isolated from said passage except for communication with it through said sensing passages.

Claim 8

In a gas pressure regulator for regulating the pressure of a gas stream flowing through it so that the pressure is substantially constant on the outlet side despite variations in pressure on the inlet side and in the rate of flow through the regulator, a housing having a diaphragm chamber with a vertical axis and a gas passage spaced from the chamber and located substantially along a horizontal line perpendicular to said chamber axis, said housing having a valve seat intersecting an intermediate portion of said passage and dividing it into an inlet section and an outlet section, a diaphragm operatively mounted in said chamber, a valve secured to the diaphragm for movement therewith along said chamber axis, said valve being located in said gas passage and cooperating with said valve seat to regulate the pressure in the outlet section, and means providing a plurality of sensing passages opening at one end respectively angularly different and substantially separated points of sAid outlet section and at the other end into said diaphragm chamber to expose one side of said diaphragm to the pressure in substantially different points of said outlet section, said one side of said diaphragm being isolated from said passage except for communication with it through said sensing passages.

Claim 9

In a gas pressure regulator, a housing having a gas flow passage in it, a valve chamber in said gas passage and dividing said passage into an inlet section and an outlet section, a valve in the valve chamber and movable along an axis perpendicular to said sections for controlling flow between said inlet and outlet sections, pressure responsive means for controlling axial movement of the valve so that the axial position of the valve is determined by pressure on the pressure responsive means, a pressure sensing chamber associated with the pressure responsive means and providing the control pressure on said pressure responsive means, said outlet section having a first pressure sensing point where the pressure is substantially average for the outlet section and a second pressure sensing point where the pressure is below average for the outlet section, both said pressure points being located substantially distances downstream from said axis, and passage means connecting said first and said second pressure sensing points respectively to said pressure sensing chamber so that the pressure at each said point is reflected in said chamber to form said control pressure.

Claim 10

In a gas pressure regulator, a housing having a gas flow passage in it, a valve chamber in said gas passage and dividing said passage into an inlet section and an outlet section, a valve in the valve chamber and movable along an axis perpendicular to said sections for controlling flow between said inlet and outlet sections, pressure responsive means for controlling axial movement of the valve so that the axial position of the valve is determined by pressure on the pressure responsive means, a pressure sensing chamber associated with the pressure responsive means and providing the control pressure on said pressure responsive means, said outlet section having a first pressure sensing point where the pressure is substantially average for the outlet section and a second pressure sensing point where the pressure is below average for the outlet section, both said pressure points being located substantially distances downstream from said axis, and passage means connecting said first and said second pressure sensing points respectively to said pressure sensing chamber so that the pressure at each said point is reflected in said chamber to form said control pressure.