US1582896A - Fluid-pressure regulation - Google Patents

Fluid-pressure regulation Download PDF

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Publication number
US1582896A
US1582896A US616163A US61616323A US1582896A US 1582896 A US1582896 A US 1582896A US 616163 A US616163 A US 616163A US 61616323 A US61616323 A US 61616323A US 1582896 A US1582896 A US 1582896A
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Prior art keywords
pressure
fluid
chamber
diaphragm
mercury
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US616163A
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Joel H Berry
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/22Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
    • F16K3/24Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
    • F16K3/26Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7722Line condition change responsive valves
    • Y10T137/7781With separate connected fluid reactor surface
    • Y10T137/7782With manual or external control for line valve
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7722Line condition change responsive valves
    • Y10T137/7781With separate connected fluid reactor surface
    • Y10T137/7793With opening bias [e.g., pressure regulator]
    • Y10T137/7796Senses inlet pressure
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/86493Multi-way valve unit
    • Y10T137/86718Dividing into parallel flow paths with recombining
    • Y10T137/86759Reciprocating
    • Y10T137/86767Spool

Definitions

  • This invention relates to regulating the pressure of liquid or gaseous fluid through pressure controlling devices which are themselves governed automatically and with almost perfect accuracy by the novel devices herein set forth.
  • I have selected for illustration apparatus suitable for accurately holding boiler pressure at a predetermined degree by regulating the flow of steam to intermediate devices, for example forced draft mechanism of known character.
  • the invention has been used largely andv with perfect satisfactionfor this specific purpose.
  • the steam pressure acts upon a flexible diaphragm which by its movement varies the height of a col umn of mercury and so quickly actuates the intermediate pressure changing mechanism, it being evident that the movement of the mercury and of the diaphragm are practically without friction or material wear.
  • Figure 1 shows in axial section a valve and immediate connections embodying my invention.
  • Figure 2 is a section of a valve cylinder member, the plane of section being axial.
  • Figure 3 is a section on the line 3-3, Fig. 2,
  • 6 represents a valve casing interposed in a steam pipe 7, 7 where constant pressure is desired, the pipe segment 7 opening into a chamber 8 in the easing, into which chamber projects, from the opposite side a. terminally closed cup 9, integral with the casing, 6, and having its open end in free communication with the pipe segment 7.
  • a cylindrical valve member 10, 10 fits and slides transversely through the cup 9 in a suitable way, and has in its end portions deep slots or grooves 11 putting the chamber 8 and the interior of the cup in communication, the permitted passage of fluid in either direction varying as the cylinder is raised or lowered, the device acting under some conditions as a reducing valve.
  • a rod 12 is threaded into the lower part of the cylinder and extends downward throughthe lower wall of the casing.
  • a pipe 19 is fixed in the lower wall of the casing and the middle of the block 18, its interior or bore being a continuation of a passage 13 in the casing and having the smaller rod 12 in its axis,the chamber 8 being thus in free communication with the space above the diaphragm.
  • the lower part of the chamber 15, the pipes 20, 21, 23, and the lower part of the segment 24 are filled with mercury. If any fluid in the chamber 8 be under pressure, the mercury adjusts itself to balance that pressure and is I motionless so long as that pressure is unchanged, and if the mercury column has a length just balancing the desired pressure, the diaphragm will be plane so long as that pressure is unchanged. If that pressure varies, the diaphragm is flexed and the mercury rises or falls.
  • the flexing of the diaphragm raises or lowers the slotted cylindrical valve member, and the fluid allowed to pass in the slots from the chamber 8 into the cup and then out through the pipe 7 is increased, while contrary flexing of the diaphragm has a contrary effect.
  • the fluid or any of the moving parts may actuate the means first mentioned as common in controlling pressure.
  • This apparatus has the advantage that the diaphragm and the mercury are practically without friction and unchangeahle in use, and the control devices are as sensitive as may be desired, for if the passage in the upper segment of the vertical pipe is very small, but not capillary, a. slight variation in pressure and a correspondingly slight movement of the diaphragm will quickly and greatly increase the height of the mercury column and its resulting pressure. If the pipe segment be large, slight variations in, pressure in the chamber 8 vary the mercury column slightly and slowly, so that slight changes in pressure are without practical effect. It is plain that the vertical segment may be changed at will to change the sensitiveness ot the devices.
  • a manually rotatable rod passes into the casing and loosely but non-revolubly engages that member so that rotating the rod raises or lowers that member, changing the eti eetive opening of the slots in the member, because the member is screwed upwardly or downwardly upon the rod 12.
  • transverse valve member litting and slidable in a way through the cup and having in'its periphery an upper and lower series of deep radially open channels terminating at varying distances from one end of said valve member leading from said chamberinto tne cup and means whereby change in pressure in the chamber varies the effectively exposed portions of said channels.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Pressure (AREA)

Description

J. H. BERRY FLUID PRESSURE REGULATION Filed Jan. 31, 1923 Patented May 4, 1926.
UNITED STATES JOEL H. BERRY,- OF NORFOLK, VIRGINIA.
FLUID-PRESSURE REGULATION.
Application filed January 31, 1923. Serial No. 616,163.
To all whom, it may concern:
Be it known that I, JOEL H. BElfliY, a citizen of the United States, and resident of Norfolk, in the county of Norfolk and State of Virginia, have invented'certain new and useful Improvements in .Fluid-Pressure Regulation, of which the following is a specification, reference being had therein to the accompanying drawing;
This invention relates to regulating the pressure of liquid or gaseous fluid through pressure controlling devices which are themselves governed automatically and with almost perfect accuracy by the novel devices herein set forth.
I have selected for illustration apparatus suitable for accurately holding boiler pressure at a predetermined degree by regulating the flow of steam to intermediate devices, for example forced draft mechanism of known character. In fact, the invention has been used largely andv with perfect satisfactionfor this specific purpose.
In this selected apparatus, the steam pressure acts upon a flexible diaphragm which by its movement varies the height of a col umn of mercury and so quickly actuates the intermediate pressure changing mechanism, it being evident that the movement of the mercury and of the diaphragm are practically without friction or material wear.
In the largely diagrammatic drawings,
Figure 1 shows in axial section a valve and immediate connections embodying my invention.
Figure 2 is a section of a valve cylinder member, the plane of section being axial.
Figure 3 is a section on the line 3-3, Fig. 2,
In these figures, 6 represents a valve casing interposed in a steam pipe 7, 7 where constant pressure is desired, the pipe segment 7 opening into a chamber 8 in the easing, into which chamber projects, from the opposite side a. terminally closed cup 9, integral with the casing, 6, and having its open end in free communication with the pipe segment 7. A cylindrical valve member 10, 10 fits and slides transversely through the cup 9 in a suitable way, and has in its end portions deep slots or grooves 11 putting the chamber 8 and the interior of the cup in communication, the permitted passage of fluid in either direction varying as the cylinder is raised or lowered, the device acting under some conditions as a reducing valve. A rod 12 is threaded into the lower part of the cylinder and extends downward throughthe lower wall of the casing. and at some distance from the latter has its lower end attached centrally to a broad flexible diaphragm 1 1 which divides into two parts a broad chamber 15 formed in a two part block, the parts of which are numbered 18, 17, respectively. A pipe 19 is fixed in the lower wall of the casing and the middle of the block 18, its interior or bore being a continuation of a passage 13 in the casing and having the smaller rod 12 in its axis,the chamber 8 being thus in free communication with the space above the diaphragm. From the closed space below the diaphragm, lead pipes 20, 21 .detachably connected at 22 with a vertical pipe 23 of predetermined or adjustable length detachably connected above with a short replaceable pipe segment 9/1 of different internal diameter. The lower part of the chamber 15, the pipes 20, 21, 23, and the lower part of the segment 24 are filled with mercury. If any fluid in the chamber 8 be under pressure, the mercury adjusts itself to balance that pressure and is I motionless so long as that pressure is unchanged, and if the mercury column has a length just balancing the desired pressure, the diaphragm will be plane so long as that pressure is unchanged. If that pressure varies, the diaphragm is flexed and the mercury rises or falls.
Obviously, the flexing of the diaphragm raises or lowers the slotted cylindrical valve member, and the fluid allowed to pass in the slots from the chamber 8 into the cup and then out through the pipe 7 is increased, while contrary flexing of the diaphragm has a contrary effect. The fluid or any of the moving parts may actuate the means first mentioned as common in controlling pressure.
This apparatus has the advantage that the diaphragm and the mercury are practically without friction and unchangeahle in use, and the control devices are as sensitive as may be desired, for if the passage in the upper segment of the vertical pipe is very small, but not capillary, a. slight variation in pressure and a correspondingly slight movement of the diaphragm will quickly and greatly increase the height of the mercury column and its resulting pressure. If the pipe segment be large, slight variations in, pressure in the chamber 8 vary the mercury column slightly and slowly, so that slight changes in pressure are without practical effect. It is plain that the vertical segment may be changed at will to change the sensitiveness ot the devices.
It is sometimes desired to change the primary adjustment of the cylindrical valve member and the normal flow through the valve, and for this purpose a manually rotatable rod passes into the casing and loosely but non-revolubly engages that member so that rotating the rod raises or lowers that member, changing the eti eetive opening of the slots in the member, because the member is screwed upwardly or downwardly upon the rod 12.
What I claim is:
1. The combination with a chamber for containing fluid under a predetermined normal pressure and a balanced cylindrical valve member having in its periphery a. plurality of channels terminated at varying distances trom one end of said cylinder controlling the passage oi 'l'luid from the chamber and having an axial extension. of a inercury column arranged for rising and falling in a. conduit and for balancing said pressure, and a flexible diaphragm directly attached to said axial extension separating said fluid from the mercury.
2. The combination with a chamber for containing fluid under pressure and a balanced cylindrical valve member having a plurality of deep peripheral channels controlling the escape of fluid from the chamber ot a column of mercury arranged by pressure directly applied to an extension of said valve to balance automatically varying pressure in the chamber, a flexible diaphragm separating the fluid from the mercury, and means for at will adjusting the valve for desired pressure and flow of the fluid.
a. ne con'ibination with a chamber for -l;. The combination with a conduit for fluid under pressure, of a valve interposed therein and having in one end of its casing a chamber into which one part of the conduit opens and in the other end a cup primarily closed inwardly projecting into said chamber and outwardly in open communication with the other portion of the conduit, a:
transverse valve member litting and slidable in a way through the cup and having in'its periphery an upper and lower series of deep radially open channels terminating at varying distances from one end of said valve member leading from said chamberinto tne cup and means whereby change in pressure in the chamber varies the effectively exposed portions of said channels.
The combination with achamber 'for thud under a predetermined normal pressure, -ot a second chamber divided by .a flexible diaphragm and having one of itsdivisional parts in tree communication with said chamber lirst mentioned, a mercury column acting on the opposite side of said diaphrag 1 to balance said normal pressureyand means whereby variation in the normal pres sure and the consequent moving of the diaphragm "overns discharge of fluid through B said chamber.
In testimony whereol I hereunto afiiX my signature.
JOEL H, BERRY.
US616163A 1923-01-31 1923-01-31 Fluid-pressure regulation Expired - Lifetime US1582896A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732858A (en) * 1956-01-31 Flow controlling apparatus
US3316927A (en) * 1964-12-21 1967-05-02 Keith M Burton Apparatus for regulating the differential pressure of a hollow submerged body
US3791413A (en) * 1972-03-23 1974-02-12 Leslie Co Pressure reducing valve spool
US6367248B1 (en) 1999-10-22 2002-04-09 Honeywell International Inc. Active hydraulic control pressure system for adverse “G” flight conditions
US6397890B1 (en) * 1999-02-15 2002-06-04 Case Corp. Variable metering fluid control valve
US20130276924A1 (en) * 2012-04-24 2013-10-24 Control Components, Inc. Multi-stage fluid flow control device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732858A (en) * 1956-01-31 Flow controlling apparatus
US3316927A (en) * 1964-12-21 1967-05-02 Keith M Burton Apparatus for regulating the differential pressure of a hollow submerged body
US3791413A (en) * 1972-03-23 1974-02-12 Leslie Co Pressure reducing valve spool
US6397890B1 (en) * 1999-02-15 2002-06-04 Case Corp. Variable metering fluid control valve
US6367248B1 (en) 1999-10-22 2002-04-09 Honeywell International Inc. Active hydraulic control pressure system for adverse “G” flight conditions
US20130276924A1 (en) * 2012-04-24 2013-10-24 Control Components, Inc. Multi-stage fluid flow control device
US9022071B2 (en) * 2012-04-24 2015-05-05 Control Components, Inc. Multi-stage fluid flow control device

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