GB1343403A - Pure fluidic devices - Google Patents

Pure fluidic devices

Info

Publication number
GB1343403A
GB1343403A GB2367170A GB1343403DA GB1343403A GB 1343403 A GB1343403 A GB 1343403A GB 2367170 A GB2367170 A GB 2367170A GB 1343403D A GB1343403D A GB 1343403DA GB 1343403 A GB1343403 A GB 1343403A
Authority
GB
United Kingdom
Prior art keywords
switch
tappings
saw
venturi nozzles
venturi
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
GB2367170A
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.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
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 Plessey Co Ltd filed Critical Plessey Co Ltd
Publication of GB1343403A publication Critical patent/GB1343403A/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
    • F15C1/22—Oscillators
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Volume Flow (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

1343403 Fluid regulation PLESSEY CO Ltd 10 May 1971 [15 May 1970] 23671/70 Heading G3H An oscillator from which two different outputs may be tapped, one of a square-wave form and the other of a saw-tooth wave form, comprises a bi-stable Coanda-type fluidic switch 1 whose output branches 7 and 8 are each connected via Venturi nozzles 3 and 3a to capacitors 4 and 4a, respectively, the throats of the Venturi nozzles being in turn connected via lines 10 and 11 to the switch control inlets. Thus, if the flow supplied to the switch input 9 enters the branch 7, a signal develops, after a certain lapse of time Fig. 3 (not shown), within line 10 and this signal serves to switch the input flow to branch 8. A square-wave is obtained from the difference between the two pressures existing at tappings 12 and 13 provided respectively at the inlet of the two Venturi nozzles 3. A saw-tooth waveform, Fig. 5, (not shown ) is obtained from the difference between the two Venturi nozzle tappings 10 and 11. Varying the location of the nozzle tappings may be utilized to alter the saw-tooth waveform, Fig. 4 (not shown).
GB2367170A 1970-05-15 1970-05-15 Pure fluidic devices Expired GB1343403A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2367170 1970-05-15

Publications (1)

Publication Number Publication Date
GB1343403A true GB1343403A (en) 1974-01-10

Family

ID=10199401

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2367170A Expired GB1343403A (en) 1970-05-15 1970-05-15 Pure fluidic devices

Country Status (4)

Country Link
US (1) US3717166A (en)
DE (1) DE2124162C3 (en)
FR (1) FR2090049B1 (en)
GB (1) GB1343403A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5165438A (en) * 1992-05-26 1992-11-24 Facteau David M Fluidic oscillator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO2948624T3 (en) * 2013-03-15 2018-03-31
GB201711950D0 (en) * 2017-07-25 2017-09-06 Rolls Royce Plc Fluidic device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429324A (en) * 1965-02-16 1969-02-25 Corning Glass Works Fluid operated apparatus
US3444879A (en) * 1967-06-09 1969-05-20 Corning Glass Works Fluid pulsed oscillator
US3528442A (en) * 1967-07-14 1970-09-15 Us Army Fluid modulator system
US3557815A (en) * 1967-08-28 1971-01-26 Honeywell Inc Control apparatus
US3515158A (en) * 1967-11-24 1970-06-02 Us Navy Pure fluidic flow regulating system
US3575187A (en) * 1968-06-13 1971-04-20 Garrett Corp Fluidic pressure-insensitive oscillator
US3576294A (en) * 1969-02-26 1971-04-27 Bendix Corp Fluidic cleansing device
US3605778A (en) * 1969-03-04 1971-09-20 Bowles Fluidics Corp Variable delay line oscillator
US3633160A (en) * 1969-11-10 1972-01-04 Gen Motors Corp Warning-lamp pulsator
US3628774A (en) * 1971-03-17 1971-12-21 Bendix Corp Fluidic fluid-metering system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5165438A (en) * 1992-05-26 1992-11-24 Facteau David M Fluidic oscillator

Also Published As

Publication number Publication date
DE2124162C3 (en) 1980-03-27
FR2090049B1 (en) 1976-02-06
US3717166A (en) 1973-02-20
DE2124162A1 (en) 1971-11-25
DE2124162B2 (en) 1979-07-19
FR2090049A1 (en) 1972-01-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee