US3291153A - Fluid-actuated oscillators - Google Patents

Fluid-actuated oscillators Download PDF

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Publication number
US3291153A
US3291153A US32950563A US3291153A US 3291153 A US3291153 A US 3291153A US 32950563 A US32950563 A US 32950563A US 3291153 A US3291153 A US 3291153A
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United States
Prior art keywords
pressure
valve
orifices
unit
outlet
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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 - Lifetime
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English (en)
Inventor
Chabrier Henri Pierre
Joanis Andre Saint
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.)
Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/18—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid
    • B06B1/183—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid operating with reciprocating masses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/20—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of a vibrating fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/12—Fluid oscillators or pulse generators
    • 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
    • F15C3/00—Circuit elements having moving parts
    • F15C3/06—Circuit elements having moving parts using balls or pill-shaped disks
    • 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
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2544—Supply and exhaust 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
    • Y10T137/8593—Systems
    • Y10T137/86389—Programmer or timer
    • Y10T137/86405—Repeating cycle
    • Y10T137/86413—Self-cycling
    • 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
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86622—Motor-operated
    • Y10T137/8663—Fluid motor
    • 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
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/8667—Reciprocating valve
    • Y10T137/86686—Plural disk or plug

Definitions

  • the present invention relates to oscillator arrangements actuated by a liquid or ⁇ gas Linder pressure.
  • Such a valve is of the conventional general type comprising a hollow body provided with a supply inlet orifice in communication with a source of fiuid pressure, an outlet orifice adapted for connection to a point of use, a reference pressure orifice, and a control pressure inlet, valve means movable between la first position connecting the sup-ply inlet and outlet orifices, While disconnecting the outlet and reference pressure orifices and a second position connecting the reference pressure and outlet orifices, While disconnecting the supply inlet and outlet orifices.
  • this fluidactuated valve has the feature that said hollow body has a chamber therein, with first, second, third and fourth mutually ⁇ adjacent chamber portions having in the respective walls thereof the four respective orifices, at least two seatings and at least one spherical valve closing member in the chamber and adapted to seat lagainst the seatings for :closing the communication between the respective rst, second and third chamber portions.
  • This particular feature of the ⁇ said valve enables one to establish the communication either between the supply inlet and the outlet orifices, or between the outlet and the reference pressure orifices Iand t-o obtain the switching from one position to the other in a very simple way.
  • the oscillator arrangement according tto this invention further includes motor ymeans of a remarkably simple design, responsive to fluid pressure from the control inlet orifice and operatively connected to said spherical valve cl-osing member to move the latter from the first to the second position upon a predetermined increase in pressure at the control inlet orifice, and time delay means connecting the outlet orifice to the control inlet orifice.
  • FG. l is a .block diagram of a particularly versatile oscillator arrangement embodying the present invention.
  • FIG. 2 shows Ian embodi-ment of a fiuidactuated valve adapted for use in the oscillator arrangement illustrated in FIG. l;
  • FIG. 3 illustrates, in one of its stable operating positions, another embodiment of a Valve Iadapted for use in the arrangement of FIG. l;
  • FIG. 4 illustrates the valve of FIG. 3 in the stable operating position other than the one of FIG. 3;
  • FIG. 5 is a block diagram of another oscillator arrangement according to the invention. :and
  • FIG. 6 illustrates a liquid-actuated oscillator arrangement according to this invention.
  • FIG. l there is shown a fluid-actuated valve schematically illustrated as la rectangle l comprising a supply inlet A, a control inlet E, a reference pressure outlet O and an active loutlet S.
  • This valve is built in such a way that the pressure PA of the fluid prevailing at the supply inlet A is transferred to the outlet S only when the control inlet E is not submitted to la pressure higher than a predetermined level.
  • the active outlet S of the valve l is connected to the control inlet by means of a line connected therein, preferably including means for delaying the fluid flow, such as a fiuid resistance rl, a valve lor duct capable of introducing a pressure drop, for instance, -or a liuid capacity C1, i.e. a buffer chamber.
  • Valve 1 ofthe arrangement of FIG. l will, for instance, be of the type which is illustrated in FIG. 2.
  • valve 1 of the arrangement of FIG. l could also be of the type illustrated in FIGS. 3 and 4.
  • this embodiment there is 'only one ball B1 which is capable of obturating either seating 32 (in the position represented in FIG. 3) or seating 33 (in the position represented in FIG. 4).
  • This ball is pushed by a rod 34
  • FIG. illustrates an oscillator arrangement constituted by three valve units 51, 52 and 53 supplied in parallel, .the control inlet of each valve being connected to the active outlet of the preceding one, by means of a feedback loop c-omprisin-g a capacity C5 -and a fiuid resistance 1'5 being connected between the general outlet S of the arrangement and the inlet El of the first valve unit.
  • an oscillat-or arrangement of the type as illustrated in FIG. 5 comprises yan odd number of valve units: this is a condition for the signal .r3 at the outlet S3 to be the logical inverse of signal e1, which is applied to inlet E1.
  • the pressure .transferred ⁇ from S to E1 be sufficiently high to switch valve 51
  • in practice units 51, 52 and 53 should -be built so as to operate -as amplifiers. This will be obtained by properly dimensioning these units, as explained in the patent application already referred to. l
  • the one of FIG. 5 possesses the advantage of being more stable at comparatively low frequencies, not exceeding 1 Hertz, for instance, and of being more easy to adjust.
  • This devi-ce will preferably consist of a bistable unit having a variable switching threshold level, either positive -or negative, per-forming the function of delivering at its outlet S6 a pressure having a rectangular waveform, said pressure being supplied from the common supply source A, as soon as the pressure at its inlet E6, issued from the pressure in S, exceeds a predetermined threshold level, this threshold level being as close Ias desired to the common supply pressure.
  • Such a bistable unit will for instance consist of a direct acting amplifying relay -as disclosed in the U.S. Patent No. 2,772,688, patented December 4, 1956, and illustrated in FIG. l of ⁇ the said patent, under reference numeral 14.
  • a negative threshold bistable unit means have to be provided for re-establishing the phase reversal between S and E1.
  • These means will, for instance, consist of a valve unit as the one of FIG. 1.
  • the -oscillat-or arrangement of FIG. 5 is :apt to provide at outlets S1, S2 land S3, als well pulsatory signals such as pressure signals Without any flow, as la pulsatory flow of the supply ⁇ fi-uid, this pulsatory fiow being delivered under pressure.
  • the arrangement behaves likes an adjustable pulsatory fiow pump, the flow being determined by the supply pressure ⁇ and by the delay due to the feedback loop 1'5, C5, 56.
  • FIGURE 5 may be equipped with valve units of one of the .two types respectively illustrated in FIGURES 1 and 3, or, more generally, of the general type which has been defined hereinabove.
  • FIGURE 6 illustrates an embodiment of liquid-actuated oscillator utilising for instance five valve units 71-75. These valve units are supplied in parallel from rotary pump 77, the inlet of each of them being connected to the outlet of the preceding one, and ⁇ a feedback loop comprising a capacity C7 and a fluid resistance f7, connecting inlet El, of the first unit to outlet S of .the whole arrangement.
  • Such an arrangement may be .utilised ras Aa periodic pressure oil generator.
  • the oil flows ⁇ along a closed circuit lost at the discharge orifices O1 t-o O5 being recovered at the bottom of the casing 78 of the assembly.
  • the arrangement may also be used as an alternating volumetric pump, a gate 79 in that case controlling the -outlet flow and a charge tank 80 providing the oil supply.
  • oscillators according to this invention function correctly with both a compressible fluid, compressed air for instance, and with an incompressible fiuid.
  • the capacities will preferably consist of a chamber having slightly elastic walls, such yas a bellows.
  • some of ⁇ the connections between valves other than the feedback loop between the outlet of the last one and t-he inlet of the first may comprise fiuid capacit-ies or resistances. Also, some connections between the valve units may comprise devices which modify the .form or the amplit-u-de of the signal.
  • a fluid actuated oscillator comprising an odd number of 'at least three successive actuated valve units, each valve unit consisting of a hollow body having at least four orifices, a first orifice being an inlet orifice adapted Ifor connection to a source of pressure, a second being an active outlet orifice adapted for connection to a point of use, a third being a ⁇ reference pressure outlet, and a fourth being a control pressure inlet, valve means movable between -a first position connecting the first and second orifices while disconnecting the second and third orifices and a second position connecting the second and third orifices While disconnecting the first and second orifices, motor means responsive to 4fiuid pressure from the control inlet orifice and operatively connected to the valve means to move the latter from the ⁇ first to the second position upon a predetermined increase in pressure at the control inlet orifice, the inlet orifice of each unit being connected to a common source of fiuid pressure,

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Control Of Fluid Pressure (AREA)
  • Reciprocating Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)
US32950563 1962-12-11 1963-12-10 Fluid-actuated oscillators Expired - Lifetime US3291153A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR918142A FR1350744A (fr) 1962-12-11 1962-12-11 Oscillateurs à fluides

Publications (1)

Publication Number Publication Date
US3291153A true US3291153A (en) 1966-12-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
US32950563 Expired - Lifetime US3291153A (en) 1962-12-11 1963-12-10 Fluid-actuated oscillators

Country Status (6)

Country Link
US (1) US3291153A (xx)
CH (1) CH441833A (xx)
FR (1) FR1350744A (xx)
GB (1) GB1016689A (xx)
LU (1) LU44842A1 (xx)
NL (1) NL301684A (xx)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3419315A (en) * 1966-12-30 1968-12-31 Wagner Electric Corp Control valve
US3424184A (en) * 1966-10-18 1969-01-28 Richard Brimley Venting antisiphon rotary plug valve with drainage means
US3451429A (en) * 1966-09-28 1969-06-24 Bendix Corp Control valve providing means for minimizing seat wear
US3489180A (en) * 1966-06-21 1970-01-13 Ciotat La Process for the installation of a timelag device with pneumatic logical relays and a device for its operation
US3506035A (en) * 1966-12-16 1970-04-14 Setaram Soc D Etudes D Automat Distributor device for fluids
US3509899A (en) * 1963-05-01 1970-05-05 Carl E Hewson Heart and lung resuscitator
DE2127335A1 (de) * 1970-06-02 1971-12-16 Plessey Handel Investment Ag Fluidischer Rechtecksignalgenerator, insbesondere zur Bestimmung von Druckverhältnissen
US3710825A (en) * 1970-08-13 1973-01-16 Siemens Ag Reversing pneumatic amplifier
DE2756966A1 (de) * 1977-12-21 1979-06-28 Dornier Gmbh Hydraulisches zeitschaltventil
US4921215A (en) * 1985-10-30 1990-05-01 Tlv Co., Ltd. Reducing valve assembly with spherically shaped operating part
DE10321848A1 (de) * 2003-05-15 2004-12-02 Mahle Filtersysteme Gmbh Vorrichtung und Verfahren zur Erzeugung einer Gasströmung
US20070209723A1 (en) * 2006-03-07 2007-09-13 Santos Burrola Actuating valve with ball column actuation
US20150283874A1 (en) * 2014-04-08 2015-10-08 MAHLE Behr GmbH & Co. KG Battery cooling device and associated operating method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2470853A1 (fr) * 1979-11-30 1981-06-12 Chevalier Claude Vibreur pneumatique lineaire

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1063548A (en) * 1912-02-07 1913-06-03 Gen Electric Regulating mechanism for steam-turbines.
US1779252A (en) * 1927-11-12 1930-10-21 Ingersoll Rand Co Control mechanism for pressure-fluid-supply lines
US1912447A (en) * 1930-12-15 1933-06-06 Drift O Cock Corp Cylinder cock
US1926076A (en) * 1927-12-15 1933-09-12 William H Whalen Track sprinkler
US2611218A (en) * 1946-10-11 1952-09-23 Spence Engineering Company Inc Pilot-operated valve
US2760511A (en) * 1953-03-04 1956-08-28 Du Pont Pneumatic cycle timer
US2772688A (en) * 1954-09-13 1956-12-04 Du Pont Pneumatic cycle timer
US2887125A (en) * 1956-03-16 1959-05-19 Sarl Rech S Etudes Production Electro-valve distributor
US3031846A (en) * 1961-04-05 1962-05-01 David E Wiegand Hydraulic servo
US3057551A (en) * 1957-02-19 1962-10-09 Trg Inc Fluid pressure digital computer
US3151623A (en) * 1962-11-28 1964-10-06 Gen Precision Inc Pneumatic computer element and circuits

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1063548A (en) * 1912-02-07 1913-06-03 Gen Electric Regulating mechanism for steam-turbines.
US1779252A (en) * 1927-11-12 1930-10-21 Ingersoll Rand Co Control mechanism for pressure-fluid-supply lines
US1926076A (en) * 1927-12-15 1933-09-12 William H Whalen Track sprinkler
US1912447A (en) * 1930-12-15 1933-06-06 Drift O Cock Corp Cylinder cock
US2611218A (en) * 1946-10-11 1952-09-23 Spence Engineering Company Inc Pilot-operated valve
US2760511A (en) * 1953-03-04 1956-08-28 Du Pont Pneumatic cycle timer
US2772688A (en) * 1954-09-13 1956-12-04 Du Pont Pneumatic cycle timer
US2887125A (en) * 1956-03-16 1959-05-19 Sarl Rech S Etudes Production Electro-valve distributor
US3057551A (en) * 1957-02-19 1962-10-09 Trg Inc Fluid pressure digital computer
US3031846A (en) * 1961-04-05 1962-05-01 David E Wiegand Hydraulic servo
US3151623A (en) * 1962-11-28 1964-10-06 Gen Precision Inc Pneumatic computer element and circuits

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509899A (en) * 1963-05-01 1970-05-05 Carl E Hewson Heart and lung resuscitator
US3489180A (en) * 1966-06-21 1970-01-13 Ciotat La Process for the installation of a timelag device with pneumatic logical relays and a device for its operation
US3451429A (en) * 1966-09-28 1969-06-24 Bendix Corp Control valve providing means for minimizing seat wear
US3424184A (en) * 1966-10-18 1969-01-28 Richard Brimley Venting antisiphon rotary plug valve with drainage means
US3506035A (en) * 1966-12-16 1970-04-14 Setaram Soc D Etudes D Automat Distributor device for fluids
US3419315A (en) * 1966-12-30 1968-12-31 Wagner Electric Corp Control valve
DE2127335A1 (de) * 1970-06-02 1971-12-16 Plessey Handel Investment Ag Fluidischer Rechtecksignalgenerator, insbesondere zur Bestimmung von Druckverhältnissen
US3710825A (en) * 1970-08-13 1973-01-16 Siemens Ag Reversing pneumatic amplifier
DE2756966A1 (de) * 1977-12-21 1979-06-28 Dornier Gmbh Hydraulisches zeitschaltventil
US4921215A (en) * 1985-10-30 1990-05-01 Tlv Co., Ltd. Reducing valve assembly with spherically shaped operating part
DE10321848A1 (de) * 2003-05-15 2004-12-02 Mahle Filtersysteme Gmbh Vorrichtung und Verfahren zur Erzeugung einer Gasströmung
US20070209723A1 (en) * 2006-03-07 2007-09-13 Santos Burrola Actuating valve with ball column actuation
US20150283874A1 (en) * 2014-04-08 2015-10-08 MAHLE Behr GmbH & Co. KG Battery cooling device and associated operating method
US10562366B2 (en) * 2014-04-08 2020-02-18 MAHLE Behr GmbH & Co. KG Battery cooling device and associated operating method

Also Published As

Publication number Publication date
NL301684A (xx) 1900-01-01
GB1016689A (en) 1966-01-12
LU44842A1 (xx) 1964-01-20
FR1350744A (fr) 1964-01-31
CH441833A (fr) 1967-08-15

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