GB1217638A - A resettable fluidic flip-flop - Google Patents

A resettable fluidic flip-flop

Info

Publication number
GB1217638A
GB1217638A GB23519/69A GB2351969A GB1217638A GB 1217638 A GB1217638 A GB 1217638A GB 23519/69 A GB23519/69 A GB 23519/69A GB 2351969 A GB2351969 A GB 2351969A GB 1217638 A GB1217638 A GB 1217638A
Authority
GB
United Kingdom
Prior art keywords
passage
pulse
flow
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
GB23519/69A
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.)
Bendix Corp
Original Assignee
Bendix Corp
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 Bendix Corp filed Critical Bendix Corp
Publication of GB1217638A publication Critical patent/GB1217638A/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
    • F15C1/08—Boundary-layer devices, e.g. wall-attachment amplifiers coanda effect
    • F15C1/10—Boundary-layer devices, e.g. wall-attachment amplifiers coanda effect for digital operation, e.g. to form a logical flip-flop, OR-gate, NOR-gate, AND-gate; Comparators; Pulse generators
    • 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
    • Y10T137/2136—Pulsating power input and continuous-flow power input
    • 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]
    • Y10T137/2147—To cascaded plural devices
    • Y10T137/2158—With pulsed control-input signal
    • 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]
    • Y10T137/2229—Device including passages having V over T configuration
    • Y10T137/224—With particular characteristics of control input
    • Y10T137/2245—Multiple control-input passages

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)
  • Flow Control (AREA)

Abstract

1,217,638. Fluidic flip-flop. BENDIX CORP. 8 May, 1969 [4 June, 1968], No. 23519/69. Heading G4P. A symmetrical fluidic flip-flop can be set or reset in the absence of a control signal or of a count pulse. It comprises a first stage 10, a second stage 12 fed with pressurized fluid from a source Ps and a feedback loop through pipes 22, 24. If a fluid count pulse is emitted from passage 18 it can go down passages 26 or 28. If it enters passage 26 it is held by fluid attachment wall 25 and, by entering an interaction region 40, deflects fluid from source Ps into passage 46. A pressure gradient is set up across region 40 causing a clockwise flow round loop 22, 24 which is not strong enough to deflect the pulse held to wall 25. If, however, a fresh pulse is emitted from passage 18, the flow deflects it down passage 28, hence resetting the flow from source Ps to passage 44 and reversing the feedback flow. If a set pulse from passage 14 is emitted then the count pulse flows down passage 26 and the output is reset. If no count pulse is present the set pulse flows down passage 22 and resets the output. A reset pulse from passage 16 operates in a similar manner. Vents 30, 32 prevent circulating flow in passages 26, 28 and thus output oscillation, and vents 48, 50 isolate the output from pressure changes downstream.
GB23519/69A 1968-06-04 1969-05-08 A resettable fluidic flip-flop Expired GB1217638A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73428668A 1968-06-04 1968-06-04

Publications (1)

Publication Number Publication Date
GB1217638A true GB1217638A (en) 1970-12-31

Family

ID=24951048

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23519/69A Expired GB1217638A (en) 1968-06-04 1969-05-08 A resettable fluidic flip-flop

Country Status (3)

Country Link
US (1) US3486692A (en)
FR (1) FR2010090B1 (en)
GB (1) GB1217638A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3570515A (en) * 1969-06-19 1971-03-16 Foxboro Co Aminar stream cross-flow fluid diffusion logic gate
US4224964A (en) * 1978-01-26 1980-09-30 The Garrett Corporation Binary fluidic counter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3277913A (en) * 1963-10-31 1966-10-11 Sperry Rand Corp Pure fluid apparatus utilizing triggerable flip-flop
US3219271A (en) * 1963-11-20 1965-11-23 Sperry Rand Corp Binary counter
US3443574A (en) * 1966-04-04 1969-05-13 Honeywell Inc Fluid apparatus
US3378197A (en) * 1966-06-29 1968-04-16 Singer Co Fluonic binary counter using fluid logic units

Also Published As

Publication number Publication date
DE1924515A1 (en) 1970-03-26
FR2010090A1 (en) 1970-02-13
US3486692A (en) 1969-12-30
DE1924515B2 (en) 1973-01-25
FR2010090B1 (en) 1974-02-22

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