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GB1140024A - Improvements in or relating to fluid amplifiers - Google Patents

Improvements in or relating to fluid amplifiers

Info

Publication number
GB1140024A
GB1140024A GB334866A GB334866A GB1140024A GB 1140024 A GB1140024 A GB 1140024A GB 334866 A GB334866 A GB 334866A GB 334866 A GB334866 A GB 334866A GB 1140024 A GB1140024 A GB 1140024A
Authority
GB
United Kingdom
Prior art keywords
amplifier
nozzles
output signal
output
fluid
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB334866A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johnson Service Co
Original Assignee
Johnson Service 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 Johnson Service Co filed Critical Johnson Service Co
Publication of GB1140024A publication Critical patent/GB1140024A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
    • F15C1/00—Circuit elements having no moving parts
    • F15C1/20—Direct-impact devices i.e., devices in which two collinear opposing power streams are impacted
    • 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
    • Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
    • Y10T137/212—System comprising plural fluidic devices or stages
    • Y10T137/2125—Plural power inputs [e.g., parallel inputs]
    • Y10T137/2131—Variable or different-value power inputs
    • 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
    • Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
    • Y10T137/2164—Plural power inputs to single device
    • Y10T137/2169—Intersecting at interaction region [e.g., comparator]
    • Y10T137/2174—Co-lineal, oppositely-directed power inputs [e.g., impact modulator]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1,140,024. Fluid amplifiers; fluid-pressure servomotor systems. JOHNSON SERVICE CO. Jan. 25, 1966 [Jan. 25, 1965], No. 3348/66. Headings G3H and G3P. A fluid amplifier comprises an impact modulator having aligned opposed nozzles 16, 17, Fig. 2 opening into chambers 21, 23 which are divided by a control orifice 20, preferably having a sharp edge. Ports 22, 24 are provided leading from the chambers one being a reference pressure port and the other an output signal port connected to the input of an amplifier. Input signal restrictors are connected to the nozzles to modulate the streams to both of these nozzles, the output signal being the sum of the modulated signals and a negative feedback being connected from the amplifier output to one of the nozzles. The output of the modulator is preferably passed through cascade amplifiers. Figs. 7-9 (not shown) provide a proportional, integral and differential amplifier or combination of these controls. Fig. 13 shows the amplifier 70, as described above, used in controlling a heating system. Resistors 87, 88, 89, responsive to outside temperature, set point temperature and water pipe temperature, are arranged in parallel to provide inputs to the amplifier 70 which is also connected to a supply through regulator 94 and resistor 93. The output 77 forms the input of cascade amplifiers 71, 72, 73 the resulting output signal being fed to an amplifier 78 to act on a diaphragm 84 which moves a piston member 82, connected to diaphragm 86, to control a flapper 80. The output signal from chamber 81 controls a steam valve 61 and is also fed through a resistor 15 as a feedback to the nozzle 17.
GB334866A 1965-01-25 1966-01-25 Improvements in or relating to fluid amplifiers Expired GB1140024A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US42758965 US3388713A (en) 1965-01-25 1965-01-25 Pure fluid summing impact modulator and universal amplifiers constructed therewith

Publications (1)

Publication Number Publication Date
GB1140024A true GB1140024A (en) 1969-01-15

Family

ID=23695494

Family Applications (1)

Application Number Title Priority Date Filing Date
GB334866A Expired GB1140024A (en) 1965-01-25 1966-01-25 Improvements in or relating to fluid amplifiers

Country Status (3)

Country Link
US (1) US3388713A (en)
DE (1) DE1523542B2 (en)
GB (1) GB1140024A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3457936A (en) * 1966-11-29 1969-07-29 Us Army Fluid pressure regulator and reference
US3508564A (en) * 1967-04-10 1970-04-28 Trw Inc Electro-fluidic active devices
CH463833A (en) * 1967-12-22 1968-10-15 Eckardt Ag J Transmission link for pressure medium-operated measuring and control devices
US3561464A (en) * 1968-10-22 1971-02-09 Honeywell Inc Fluidic control apparatus
US3612084A (en) * 1969-10-31 1971-10-12 Technicon Corp High reliability flow regulator
US3623497A (en) * 1969-12-08 1971-11-30 Johnson Service Co Fluidic switch
US3682191A (en) * 1970-08-10 1972-08-08 Johnson Service Co Apparatus and method for sensing the position of a surface
GB1355134A (en) * 1970-08-13 1974-06-05 Eckardt Ag J Pneumatic control circuits
US3853617A (en) * 1971-09-29 1974-12-10 Johnson Service Co Fluidic load regulator
JPS4844682A (en) * 1971-10-07 1973-06-27
US3913344A (en) * 1974-10-15 1975-10-21 Johnson Service Co Fluid energy monitoring apparatus
US4479515A (en) * 1979-02-27 1984-10-30 United Kingdom Atomic Energy Authority Fluidic control devices
NZ549455A (en) * 2006-08-24 2009-03-31 Jet Stick Ltd Air amplifier with centered slot pressure inlet

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3250469A (en) * 1963-08-05 1966-05-10 Bowles Eng Corp Pure fluid function generating system
US3279489A (en) * 1963-09-30 1966-10-18 Johnson Service Co Fluid control
US3272215A (en) * 1963-10-29 1966-09-13 Johnson Service Co Fluid control apparatus
US3285263A (en) * 1963-11-01 1966-11-15 Johnson Service Co Input fluid control apparatus

Also Published As

Publication number Publication date
DE1523542B2 (en) 1976-09-30
DE1523542A1 (en) 1969-08-28
US3388713A (en) 1968-06-18

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