FLUID CONTROL VALVE

• US 3,805,835 A
• Filed: 05/12/1972
• Issued: 04/23/1974
• Est. Priority Date: 05/12/1972
• Status: Expired due to Term

• Current Assignee: Harvey B. Jansen
• Original Assignee: Harvey B. Jansen
• Inventors: Jansen, Harvey B.
• Primary Examiner(s): Rosenthal, Arnold
• Application Number:
  US05/252,782
• Time in Patent Office: 711 Days
• Field of Search: 137/625.3,625.61,625.62 251/282,61 138/46
• US Class Current: 137/625.3
• CPC Class Codes: F16K 3/00 Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing F16K5/00 takes precedence; in barrages or weirs E02B8/04
• CPC Class Codes: F16K 39/04 for sliding valves
• CPC Class Codes: Y10T 137/86734 With metering feature

Abstract

A valve for metering fluid flow having a metering post with a central fluid passage open at one end and having opposed metering openings connected with the central passage at the other end. Bifurcated movable metering element straddling the metering post for opening and closing said metering openings in response to control signals.

Claims

1. A fluid control valve comprising:

a body member having a fluid passage therein said passage being open at one end and having opposed metering openings at the other end communicating with said passage;

movable metering means having portions in registry with said metering openings and spaced apart from said body member for covering and uncovering said metering openings in response to movement of said metering means said metering means being arranged to provide balanced flow from said metering openings;

second metering means for adjusting the size of the metering openings; and

actuation means for moving said metering means in response to control signals.

2. A fluid control valve according to claim 1 wherein said metering means is a bifurcated element said bifurcations being in registry with said metering openings.

3. A fluid control valve according to claim 1 wherein the signals for controlling said actuation means are fluid pressure signals.

4. A fluid control valve according to claim 1 wherein said actuation means is an electro-mechanical means.

5. A fluid control valve comprising:

a body member having a fluid inlet passage, a fluid outlet passage and a central cavity in communication with said passages;

a metering post mounted in said body member having a central passage therein open at one end and in communication with one of said passages and opposed metering openings at the other end in communication with said central opening and said cavity, said metering openings lying on an axis transverse to the longitudinal axis of said central passage;

a movabLe metering member mounted in said body member and having portions thereof in registry with and spaced apart from said metering openings and arranged with respect to said metering post to provide balanced flow from said metering openings; and

actuation means mounted in said body member for moving said metering member with respect to said metering post for varying the fluid flow between said metering post and said cavity.

6. A fluid control valve according to claim 5 wherein said metering post is movable within said housing for adjusting the registration between said metering member and said metering openings.

7. A fluid control valve according to claim 5 wherein the central passage of said metering post is in communication with the outlet passage of said body member.

8. A fluid control valve according to claim 5 wherein said metering member is a bifurcated member having its bifurcated portions on either side of said metering post in registry with said metering openings.

9. A fluid control valve according to claim 8 and further comprising:

a metering shaft movably mounted in said body member having its longitudinal axis substantially parallel to the longitudinal axis of the central passage in said metering post and operably connected to said actuation means; and

means for rotatably mounting said metering means on said metering shaft for rotation about the longitudinal axis of said shaft.

10. A fluid control valve according to claim 9 and further comprising:

a source of pressurized control fluid;

a second fluid cavity in said body member separated from said first cavity and having a control fluid inlet opening therein;

fluid actuation means responsive to said control fluid pressure in said second cavity and operably connected to said metering shaft; and

means connected to said metering shaft for opposing the action of said actuating means for restoring said metering means to a neutral position when said actuating means is not energized.

11. A fluid control valve according to claim 10 wherein said means for opposing the action of said actuating means comprises:

a first spring for urging said metering shaft in one direction; and

a second spring for urging said metering means in the other direction, one of said springs having a spring rate higher than the other of said springs and said springs being of material having different coefficient of expansion whereby the net spring rate of said first and second springs is constant over a specified temperature range.

12. A fluid control valve comprising:

a body member having a central opening therethrough and a fluid passage connected to said opening;

a metering post mounted in the central opening of said body member and having a fluid passage extending along its longitudinal axis and in communication with the fluid passage of said body member at one end and having opposed metering openings at the other end, said metering openings lying on an axis transverse to the longitudinal axis of said post;

metering means having portions in registry with said metering openings and spaced apart from said metering post;

means for adjusting the size of the metering openings for calibration thereof; and

actuation means operably connected to said metering means for varying the size of said metering openings in response to control signals, said metering means and said metering openings being arranged to provide balanced fluid flow from said metering openings.

13. A fluid control valve according to claim 12 wherein said metering means is a bifurcated member having its bifurcated portions in registry with said metering openings and a shaft portion connected to said actuating means.

14. A fluid control valve according to claim 13 wherein said actuation means is a rotational actuator operably connected to said metering means for rotating said metering means about an axis substantially parallel to the axis of the metering openings.

15. A fluid control vaLve according to claim 12 wherein said adjusting means comprises an adjustable piston member mounted in the fluid passage of said metering post and having a piston head in registry with said metering openings, said piston member being movably connected to said body member for adjustment of the degree of registry of said piston head with said metering openings.