ZA817424B - Multi-stage pressure reducing system - Google Patents

Multi-stage pressure reducing system

Info

Publication number
ZA817424B
ZA817424B ZA817424A ZA817424A ZA817424B ZA 817424 B ZA817424 B ZA 817424B ZA 817424 A ZA817424 A ZA 817424A ZA 817424 A ZA817424 A ZA 817424A ZA 817424 B ZA817424 B ZA 817424B
Authority
ZA
South Africa
Prior art keywords
pressure reducing
stage pressure
reducing system
stage
reducing
Prior art date
Application number
ZA817424A
Other languages
English (en)
Inventor
Peter C M Chow
Walter L Connolly
Original Assignee
Grove Valve & Regulator Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Grove Valve & Regulator Co filed Critical Grove Valve & Regulator Co
Publication of ZA817424B publication Critical patent/ZA817424B/xx

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/02—Modifications to reduce the effects of instability, e.g. due to vibrations, friction, abnormal temperature, overloading or imbalance
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/0402—Control of fluid pressure without auxiliary power with two or more controllers mounted in series
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/14—Control of fluid pressure with auxiliary non-electric power
    • G05D16/16—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid
    • G05D16/163—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid using membranes within the main valve
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7759—Responsive to change in rate of fluid flow
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7762—Fluid pressure type
    • Y10T137/7764—Choked or throttled pressure type
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7762—Fluid pressure type
    • Y10T137/7769—Single acting fluid servo
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Control Of Fluid Pressure (AREA)
  • Pipe Accessories (AREA)
  • Pipeline Systems (AREA)
ZA817424A 1980-10-28 1981-10-27 Multi-stage pressure reducing system ZA817424B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/201,444 US4566488A (en) 1980-10-28 1980-10-28 Multi-stage pressure reducing system

Publications (1)

Publication Number Publication Date
ZA817424B true ZA817424B (en) 1982-10-27

Family

ID=22745839

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA817424A ZA817424B (en) 1980-10-28 1981-10-27 Multi-stage pressure reducing system

Country Status (6)

Country Link
US (1) US4566488A (xx)
EP (1) EP0051388B1 (xx)
JP (1) JPS57104000A (xx)
CA (1) CA1181318A (xx)
DE (1) DE3172445D1 (xx)
ZA (1) ZA817424B (xx)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5649929A (en) * 1995-07-10 1997-07-22 Callaway; George Hadley Knee joint flexion-gap distraction device
US5669914A (en) * 1996-02-16 1997-09-23 Board Of Regents Of The University Of Colorado Rotation alignment instrument
DE10215358B4 (de) * 2002-04-08 2007-03-08 Mathys Medizinaltechnik Ag Bänderspannvorrichtung mit Schnittlehre
US8220479B1 (en) * 2008-06-03 2012-07-17 A+ Manufacturing LLC Multi-stage ratio pressure regulator system
US8616228B1 (en) 2008-06-03 2013-12-31 A+ Manufacturing, Llc Multi-stage ratio pressure regulator system
US10073071B2 (en) 2010-06-07 2018-09-11 David Deng Heating system
US9739389B2 (en) 2011-04-08 2017-08-22 David Deng Heating system
US10222057B2 (en) 2011-04-08 2019-03-05 David Deng Dual fuel heater with selector valve
CN102506198B (zh) 2011-10-20 2013-05-22 南京普鲁卡姆电器有限公司 双气源燃气自适应主控阀
US9022064B2 (en) 2012-05-10 2015-05-05 David Deng Dual fuel control device with auxiliary backline pressure regulator
US9678513B2 (en) * 2015-04-06 2017-06-13 Tescom Corporation Fluid regulating unit
CN105347460B (zh) * 2015-11-25 2018-01-09 新奥科技发展有限公司 一种超临界水反应系统、及其压强控制方法和装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2650607A (en) * 1949-02-23 1953-09-01 M & J Engineering Co Gas flow control apparatus
US2741262A (en) * 1950-11-24 1956-04-10 Exxon Research Engineering Co Apparatus for controlling and releasing pressure
DE2002439A1 (de) * 1970-01-21 1971-07-29 Augsburg Nuernberg Ag Zweignie Rohr-OElsystem fuer hydraulische Einrichtungen,insbesondere zur Erzeugung eines Regelimpulsdruckes bei Regeleinrichtungen
FR2180215A5 (xx) * 1972-04-13 1973-11-23 Electricite De France
US3972364A (en) * 1972-05-24 1976-08-03 Grove Valve And Regulator Company Pressure surge relief system
US4016898A (en) * 1975-05-27 1977-04-12 Sperry Rand Corporation Means for suppressing cavitation in a high pressure relief valve
DE2649514A1 (de) * 1975-11-06 1977-05-12 Grove Valve & Regulator Co Pilotventil
US4026513A (en) * 1975-11-06 1977-05-31 Grove Valve And Regulator Company Pilot valve

Also Published As

Publication number Publication date
US4566488A (en) 1986-01-28
CA1181318A (en) 1985-01-22
JPS57104000A (en) 1982-06-28
EP0051388A1 (en) 1982-05-12
EP0051388B1 (en) 1985-09-25
DE3172445D1 (en) 1985-10-31

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