US3512558A - Fluid control device - Google Patents

Fluid control device Download PDF

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Publication number
US3512558A
US3512558A US632619A US3512558DA US3512558A US 3512558 A US3512558 A US 3512558A US 632619 A US632619 A US 632619A US 3512558D A US3512558D A US 3512558DA US 3512558 A US3512558 A US 3512558A
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United States
Prior art keywords
fluid
control
input
plate
control device
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Expired - Lifetime
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US632619A
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English (en)
Inventor
Robert F O'keefe
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Pitney Bowes Inc
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Pitney Bowes Inc
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    • 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
    • F15C1/18—Turbulence devices, i.e. devices in which a controlling stream will cause a laminar flow to become turbulent ; Diffusion amplifiers
    • 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
    • F15C5/00—Manufacture of fluid circuit elements; Manufacture of assemblages of such elements integrated circuits
    • 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]
    • 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]
    • Y10T137/2224—Structure of body of device
    • 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]
    • Y10T137/2273—Device including linearly-aligned power stream emitter and power stream collector

Definitions

  • a substantially flat, laminar plate-like device having a plurality of identical fluid control elements formed therein and sealed from atmosphere except for main fluid inlet and outlet passageways and auxiliary control fluid inlet passageways, and having access means on one surface of the plate which communicate with all the passageways and which can be selectively interconnected to achieve a variety of fluid logic circuits between the air inlet and outlet passageways, the latter being utilized for control functions.
  • This invention relates generally to improvements in fluid control devices and particularly to improved means providing for selective interconnection of a plurality of fluid control elements whereby a wide variety of fluid logic circuits can be readily obtained.
  • Principles of the invention are illustrated, by Way of a preferred embodiment, in a multi-layer panel-like structure having a base plate, one surface of which is grooved to form a pattern of channels which define a plurality of substantially identical fluid control elements.
  • Each element has input mean-s and output means which communicate through the base plate with the surface thereof opposite to the surface in which the fluid logic elements are formed. Means are provided on the said opposite surface for facilitating easy and rapid interchangeable connection of selected input and output means of the several fluid control elements to obtain a desired fluid logic circuit.
  • Another plate is superposed on the first mentioned surface of the base plate, with a suitable sealing gasket, interposed betweed the plates to effectively seal the fluid control elements from atmosphere except through the above-mentioned inlet and outlet means.
  • the control device herein disclosed is provided with a connecting means for the fluid output line of each control element, which connecting means may have provision for connection to more than one external fluid conducting conduit, and an individual connecting means for each auxiliary fluid input line of each fluid control element.
  • the base plate is provided with an input pressure fluid manifold which is grooved into the surface of the base plate and communicates with a main input line of each control element, the input manifold having a single connecting means on the opposite surface of the base plate for connection to a source of pressure fluid.
  • the present invention thus provides a simple, compact and highly eflicient means for confining a large number of individual fluid control elements which can be Selectively interconnected to form fluid logic circuits, such as multiple control signal input gates having a desired on or off output control signal depending on the nature of control input signals.
  • a device according to the present invention possesses certain distinctive advantages over heretofore known structures.
  • a device of the type disclosed in the above-mentioned application Ser. No. 564,305 in which a plurality of fluid control elements are internally interconnected by channels formed in plates which form part of a multi-layer structure, lacks fiexability once it is designed and assembled, and it must be rearranged with different preformed plates in order to change the fluid logic circuitry.
  • the circuitry may be changed without any modification of the basic panel constituting the fluid control device, and this may be accomplished with a minimum of time and effort when the need for change of circuitry arises.
  • Another object is to provide a fluid control device in which a plurality of fluid control element-s having external readily accessible fluid input and output terminals are formed in a compact unitary plate-like assembly which is suitable for installation in small areas and for convenient mounting in groups where two or more such devices are required.
  • Another object is to provide a fluid control device which is highly reliable in operation, is inexpensive to manufacture and requires little or no maintenance.
  • FIG. 1 is a plan view, with intermediate portions broken away for clarity, of a fluid control device constructed in accordance with the principles of the present invention
  • FIG. 2 is a sectional view taken on the line 22 of FIG. 1;
  • FIG. 3 is a plan view, broken as in FIG. 1, of the reverse side of the device of FIG. 1;
  • FIG. 4 is a fragmentary diagrammatic plan view of several illustrative fluid logic circuits.
  • the fluid control device comprises a generally flat substantially rectangular multi-layer panel 10, which, as best seen in FIG. 2, comprises a grooved and perforate base plate '12 and an imperforate cover means comprising a thin sheet of incompressible plastic film .1-4, a compressible sealing gasket 16, and a rigid cover plate 18.
  • the sheet 14 of incompressible plastic is transparent while the sealing gasket 16 is made of cork and therefore is not transparent.
  • both of these layers as well as the cover layer 18 are illustrated as being transparent to reveal the details of the fluid elements.
  • the layers 12, 14, 16 and 18 are secured together to form the panel by means of a plurality of rivets 22 which extend through aligned bores formed in the several layers.
  • the incompressible plastic sheet 14 and the compressible gasket 16 are that the sheet 14, which directly overlies the channel forming grooves of the fluid control elements hereinafter to be described, is sufficiently incompressible so that it will not depress into the channels when it is squeezed by the rivets 22, and yet is flexible enough to follow the contours of the plate 12 if the latter is not absolutely flat.
  • the cork layer 16 is compressible to assure an airtight seal between the plate 12 and the incompressible layer 14 in the event that the contours of the adjacent surfaces of the plate 12, the sheet 14 and the cover plate do not match perfectly.
  • the base plate 12 is of prime importance to the present invention since it contains the essential components of the fluid control device.
  • the upper surface 24 of the base plate 12 is grooved to form a series of channels and cavities which effectively define a plurality of fluid control elements, all of the elements being generally elongate and disposed on the surface of the plate in spaced substantially parallel relationship. All of the elements are identical and comprise an elongate fluid interaction chamber 26 having a main fluid input line 28 communicating with one end thereof and a fluid output line 30 axially aligned with the input line 28 and communicating with the opposite end of the chamber 26. It will be observed from FIG. 2 that the chamber 26 is substantially greater in depth within the plate 12 than the fluid lines 28 and 30, as is also true of other lines hereinafter to be described.
  • the output line 30 communicates with a bore 32 extends laterally through the plate 12 to the rear surface 34 thereof.
  • the chamber 26 is also provided with a pair of bores 36 and 38 disposed adjacent to the output end of the chamber 26, these bores also extending laterally through the plate 12 to the rear surface thereof. These bores are adapted to communicate with the ambient atmosphere as will be more readily apparent hereinafter.
  • a plurality of auxiliary control fluid input lines 40, 42. 44 and 46 are provided which communicate laterally with the chamber 26 adjacent the input end thereof, these channels also communicating respectively with bores 50, 52, 54 and 56 which extend laterally through the plate 12 to the rear face thereof.
  • the lines 40, 42, 44 and 46 are control lines for applying a control input signal from a command souce of pressure fluid, and function to change the mode of operation of the fluid control element as will be more clearly explained hereinafter.
  • bosses are integrally formed on the rear surface 34 of the plate 12. Specifically, a boss 60 having a bore 62 is positioned to have its bore aligned with the bore 32 connecting with the output line 30; and bosses 63, 65, 67 and 69 are positioned to have their bores 70, 72, 74 and 76 respectively aligned with the bores 50, 52, 54 and 56 of the four auxiliary control fluid input lines. These bosses are adapted to have external fluid conducting conduits, such as flexible plastic tubes or the like, removably connected thereto so as to interconnect various parts of the several fluid logic elements or for connection to external devices.
  • external fluid conducting conduits such as flexible plastic tubes or the like
  • all of the fluid control elements are identical in configuration on both faces of the base plate 12.
  • a significant feature of the present fluid control device is the provision of a common fluid input manifold incorporated into the plate 12 which interconnects the main fluid input lines 28 of all of the fluid control elements with a single source of fluid pressure.
  • the upper face 24 of the plate 12 is grooved to provide an elongate channel 80 which is generally rectangular and extends substantially the length of the panel 10, the channel 80 being wide enough to have suflicient volumetric capacity to simultaneously supply all of the fluid logic elements with an ample flow of fluid to operate properly.
  • a bore 82 extending laterally through the plate 12 to the rear surface, and a boss 84 having a bore 86 aligned with the bore 82 is integrally formed on the rear surfact for connection to a fluid conducting conduit which in turn is connected to a suitable source of fluid pressure.
  • connector means are provided to facilitate the connection of the several bosses above described to the external fluid conducting conduits, the connector means preferably taking the form of adaptors shaped to fit over the bosses and having a reduced diameter portion over which the end of the fluid conducting conduit is placed.
  • the adaptor 90 shown on the auxiliary control input boss 69 has only one reduced diameter extension 92, the latter having a bore 94 communicating with the bore 86 in the boss 84.
  • Another feature of the present invention is the provision of a number of adaptors which have more than one such reduced diameter portion so that more than one fluid conducting conduit can be connected to the output line of a single fluid control element.
  • the adaptor 96 shown on the output boss 60 has two reduced diameter portions 98, each having a bore communicating with the output bore 62.
  • a plurality of a single connection adaptors are provided which are shaped to fit over the bosses 63, 65, 67 and 69 of the auxiliary control fluid input bores 50, 52, 54 and 56 respectively, whereby the output of any one control element can be connected to an auxiliary control fluid input line of more than one other control element or to more than one fluid pressure responsive controlled device.
  • Each individual fluid control element operates in the following manner. Fluid, gas or liquid under suitable pressure is admitted into the main input line 28 from the manifold 80 and flows therefrom into the interaction chamber 26 with a substantially laminar flow characteristic that impinges directly upon the output line 30 with substantial pressure in relation to the input pressure. Thus a fluid flow of relatively high pressure is obtained at the output line 30 which may be directed as desired by the boss 60 and bore 62. However, if a control input signal from a command source is introduced by fluid flow in any of the auxiliary input lines 40, 42, 44 or 46, the laminar flow through the chamber 26 of the air from the main input line 28 is changed to a constrained turbulent flow and the fluid now impinges on the output line 30 with very little or substantially no pressure recovery.
  • the air from input line 28 and the auxiliary fluid input line is vented to atmosphere via the holes 36 and 38.
  • the introduction of the control input signal has changed the mode of operation of the fluid control element from laminar to constrained turbulent flow with a resulting pressure reduction at the output line 30.
  • the pressure differential existing at the output line 30 between laminar and constrained turbulent flow in the interaction chamber 26 may be sensed and utilized for any desired control function.
  • the fluid flow in chamber 26 remains turbulent so long as the control input signal through any of the lines 40, 42, 44 or 46 continues. However, upon termination of the control input signal, the flow of fluid in the interaction chamber 26 returns to laminar, thus again changing the mode of operation of the fluid control element. It will thus be seen that the fluid amplifier is monostable, and in terms of logic constitutes a NOR gate for the reason that an on signal existing in any of the auxiliary control input lines 40, 42, 44 or 46 is effective to produce an off signal at the output line 30.
  • FIG. 3 shows a plan view of the device as seen from the rear surface 34 of the plate 12. It will be seen that the boss 60 aligned with the output bore 30 and the bosses 63, 65, 67 and 69, aligned respectively with the auxiliary control fluid input bores 50, 52, 54 and 56, for any given control element are all located in an area 100 of the surface 34 delineated by lines 102, 104, 106, and 108, referring particularly to the area indicated as #1.
  • the four rows of bosses 63, 65, 67 and 69 communicating with the control input bores are labeled A, B, C and D at each end of the plate 12. This indicia greatly facilitates the interconnection of the output bore of any one or more control elements with selected auxiliary input bores of any one or more other elements as more particularly described hereinafter in connection with FIG. 4.
  • FIG. 4 shows diagrammatically a number of illustrative ways in which the individual fluid amplifiers may be interconnected to achieve a variety of logic circuits, it being understood that the circuits shown are merely exemplary of the great variety of circuits available to perform a desired control function.
  • fluid amplifiers 1, 2, 3 and 4 are each connected to the input manifold via their respective input lines 28a, 28b, 28c and 28d, and their respective output lines 30a, 30b, 30c and 30d are connected via external fluid conducting conduits 31a, 31b, 31c and 31d to the four auxiliary control input lines c, 42c, 44c and 460 respectively of fluid amplifier 5, the main input line 28e of which is also connected to the input manifold 80.
  • an output signal from any of the amplifiers 1, 2, 3, or 4 constitutes a control input signal for amplifier 5.
  • Control input signals are provided to the auxiliary control input lines 46a, 46b, 46c and 46d of amplifiers 1, 2, 3 and 4 respectively via external fluid conducting conduits 33a, 33b, 33c and 33d which are connected to any suitable devices capable of effecting fluid flow in the conduits 33a, 33b, 330 or 33d in response to the occurance or non-occurance of an event, as the case may be.
  • amplifiers 1 through 5 constitute an AND gate since it requires an on signal at each of the four command sources to produce an on signal at the output line 30a of amplifier 5.
  • the AND gate made up of amplifiers 1 through 5 may be readily converted to a NAND gate simply by connecting the output line 30c of amplfiier 5 to any one of the auxiliary input lines, such as 42 of amplifier 6 by means of external conduit 312. It will now be seen that an on signal at all of the command sources, i.e., control input lines 33a, 33b, 33c and 33d will produce an effective off signal at the output line 30 and in the conduit 31; connected to any desired controlled device.
  • each of the fluid logic elements constitutes a NOR gate for the reason that an on signal at any auxiliary control input line produces an effective olf" signal at the element output line.
  • the NOR gate may be converted to an OR gate merely by connecting the output line of one amplifier to an auxiliary input line of another.
  • fluid amplifier 12 constitutes a NOR gate at its output line 30g since fluid flow in any of the control lines 33g will change the operative mode of the amplifier from laminar to constrained turbulent and thereby produce an effective off signal at the output line 30g.
  • a fluid control device comprising:
  • (C) means formed in said plate for interconnecting all said main fluid input lines to a common source of fluid under pressure
  • (E) means formed integrally with said plate and communicating with the opposite surface of said plate for removably connecting external fluid conducting conduits to said interconnecting means for the main fluid input lines, to said control fluid input lines and to said fluid output lines whereby said plurality of fluid control elements may be selectively and interchangeably interconnected to form fluid logic circuits.
  • a fluid control device as set forth in claim 1 wherein said means communicating with the opposite surface of said plate for connecting external fluid conducting conduits comprises lateral bores extending through said plate from said means for interconnecting said main fluid input lines, from said fluid output lines and from said control fluid input lines, and hollow bosses formed integrally with said opposite surface of said plate and communicating with said lateral bores, said bosses being adapted for connection to the external fluid conducting conduits.
  • a laminated fluid control device comprising:
  • first board means having a plurality of grooves formed in one face thereof so as to effectively define a plurality of individual and separate'fluid control elements each having an emitter port, a collector port, a venting port, at least one control port, and a substantially enclosed fluid interaction chamber connecting all said ports, said elements being generally elongate and being arranged in side by side parallel relationship on said plate,

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Valve Housings (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Flow Control (AREA)
US632619A 1967-04-21 1967-04-21 Fluid control device Expired - Lifetime US3512558A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63261967A 1967-04-21 1967-04-21

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US3512558A true US3512558A (en) 1970-05-19

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US632619A Expired - Lifetime US3512558A (en) 1967-04-21 1967-04-21 Fluid control device

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US (1) US3512558A (ja)
JP (1) JPS49713B1 (ja)
CH (1) CH465414A (ja)
DE (2) DE1750318C3 (ja)
FR (1) FR1581513A (ja)
GB (1) GB1222107A (ja)
SE (1) SE342293B (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664383A (en) * 1970-06-11 1972-05-23 Jerry M Minchey Pneumatic control mechanism for looms and the like
US3680575A (en) * 1969-07-26 1972-08-01 Fujikoshi Kk Fluidic amplifier
FR2134680A1 (ja) * 1971-04-30 1972-12-08 Automatic Switch Co
US8491791B2 (en) * 2005-05-25 2013-07-23 Bio-Rad Laboratories, Inc. Fluidics device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915417A1 (de) * 1979-04-17 1980-10-30 Orgaresin Ag Verfahren zum verbinden von bau- oder konstruktionselementen und nach dem verfahren hergestellte bau- und konstruktionselemente
DE3602293A1 (de) * 1986-01-25 1987-08-06 Audi Ag Verbindung von zwei einen hohlraum einschliessenden kunststoffteilen durch klebung, insbesondere klappe fuer eine kraftfahrzeugkarosserie
JPH08121442A (ja) * 1994-10-26 1996-05-14 Mitsubishi Electric Corp 接着接合体及びその接合方法並びにリベット

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3076473A (en) * 1960-08-15 1963-02-05 Sperry Rand Corp Program control devices for fluid apparatus
US3080886A (en) * 1961-09-18 1963-03-12 Honeywell Regulator Co Fluid amplifier
US3171421A (en) * 1961-12-07 1965-03-02 Honeywell Inc Fluid amplifier control system
US3229705A (en) * 1963-03-29 1966-01-18 Ibm Fluid memory
US3362422A (en) * 1964-12-21 1968-01-09 Gen Electric Fluid amplifier
US3416551A (en) * 1967-03-07 1968-12-17 Foxboro Co Fluid diffusion logic system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3076473A (en) * 1960-08-15 1963-02-05 Sperry Rand Corp Program control devices for fluid apparatus
US3080886A (en) * 1961-09-18 1963-03-12 Honeywell Regulator Co Fluid amplifier
US3171421A (en) * 1961-12-07 1965-03-02 Honeywell Inc Fluid amplifier control system
US3229705A (en) * 1963-03-29 1966-01-18 Ibm Fluid memory
US3362422A (en) * 1964-12-21 1968-01-09 Gen Electric Fluid amplifier
US3416551A (en) * 1967-03-07 1968-12-17 Foxboro Co Fluid diffusion logic system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680575A (en) * 1969-07-26 1972-08-01 Fujikoshi Kk Fluidic amplifier
US3664383A (en) * 1970-06-11 1972-05-23 Jerry M Minchey Pneumatic control mechanism for looms and the like
FR2134680A1 (ja) * 1971-04-30 1972-12-08 Automatic Switch Co
US3712320A (en) * 1971-04-30 1973-01-23 Pitney Bowes Inc An annular fluidic control device
US8491791B2 (en) * 2005-05-25 2013-07-23 Bio-Rad Laboratories, Inc. Fluidics device

Also Published As

Publication number Publication date
DE1750318C3 (de) 1978-04-20
CH465414A (de) 1968-11-15
JPS49713B1 (ja) 1974-01-09
FR1581513A (ja) 1969-09-19
DE1799027A1 (de) 1976-05-13
DE1750318B2 (de) 1977-09-15
DE1750318A1 (de) 1971-07-01
GB1222107A (en) 1971-02-10
SE342293B (ja) 1972-01-31

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