US3054416A - Primary stage of two-stage hydraulic distributor - Google Patents

Primary stage of two-stage hydraulic distributor Download PDF

Info

Publication number
US3054416A
US3054416A US9115161A US3054416A US 3054416 A US3054416 A US 3054416A US 9115161 A US9115161 A US 9115161A US 3054416 A US3054416 A US 3054416A
Authority
US
United States
Prior art keywords
blade
tube
stage
nozzles
jet nozzles
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 - Lifetime
Application number
Other languages
English (en)
Inventor
Lucien Rene
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.)
Recherches Etudes Production REP SARL
Original Assignee
Rech Etudes Prod
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 Rech Etudes Prod filed Critical Rech Etudes Prod
Application granted granted Critical
Publication of US3054416A publication Critical patent/US3054416A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F15C3/00—Circuit elements having moving parts
    • F15C3/10—Circuit elements having moving parts using nozzles or jet pipes
    • F15C3/14—Circuit elements having moving parts using nozzles or jet pipes the jet the nozzle being intercepted by a flap
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
    • F15B13/0438—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves the pilot valves being of the nozzle-flapper 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
    • Y10T137/2278—Pressure modulating relays or followers
    • 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
    • Y10T137/86582—Pilot-actuated
    • Y10T137/8659—Variable orifice-type modulator
    • Y10T137/86598—Opposed orifices; interposed modulator

Definitions

  • the present invention relates to an improved primary stage of a two-stage hydraulic distributor.
  • the present invention relates to a primary stage, of the type having a blade and a torsion tube.
  • FIG. 1 is a diagrammatic illustration of a first embodiment of the invention
  • FIG. 2 is a portion of the embodiment in FIG. 1 shown on enlarged scale
  • FIG. 3 is a perspective view with parts broken away and partial cross-sections, of the general arrangement of the distributors of the embodiment of FIG. 1;
  • FIG. 4 is a cross-section in plan, taken along the broken line IVIV of FIG. 5;
  • FIG. 5 is a cross-section in elevation, taken along the line VV of FIG. 4, or along the line V-V of FIG. 6;
  • FIG. 6 is a cross-section in elevation following the broken line VIVI of FIG. 4;
  • FIG. 7 is a diagrammatic illustration of a second embodiment of the invention.
  • FIG. 8 shows a portion of FIG. 7 in section and on enlarged scale.
  • the motor of the distributor is of the type generally known as a torque-motor, and essentially comprises a magnetic blade 1 oscillating about an axis XX in the air-gaps 2 and 3 of a magnetic circuit formed in two parts 4 and 5, polarized by a permanent magnet 6, under the effect of two windings 7 and 8 surrounding the blade 1 and receiving the control current or currents.
  • the magnetic blade 1 is coupled to the blade 9 of the jets by a rigid shaft 10 which is the physical embodiment of the axis XX, formed in the manner indicated in detail in FIG. 2.
  • the rigid shaft 10 is surrounded by a cylindrical tube 11 which forms an integral part of a fixed base member 12.
  • a coupling joins together the three members, namely: a screw 13 couples together the magnetic blade 1, the rigid shaft 10 and the tube 11, while a screw 14 couples the blade 9 of the jets, the shaft 10 and the tube 11.
  • These parts are dimensioned in such manner that the tube 11, by its two halves, constitutes a torsion bar between the fixed point 12 and each of the two blades 1 and 9, while the rigid shaft 10 couples the two blades 1 and 9 in torsion.
  • the whole system serves at the same time as a suspension for the two blades, and also as a hermetic closure device, as will be described below.
  • the jet blade 9 oscillates about the axis XX between two pairs of jets 1516, 1718.
  • the jet nozzles 15 and 17 are connected together through a piping system 19; similarly, the jet nozzles 16 and 18 are connected together through a piping system 29.
  • Each of these piping systems 19 or 20 is connected on the one hand to a chamber 21 or 22 which actuates the slide-valve 23 of the secondary stage of the distributor, and on the other hand through a Staes atent calibrated orifice 24 or 25 to the inlet 26 of the fluid under pressure.
  • the arrangement with two jet nozzles may be more advantageous.
  • a mechanical device for resisting the force developed by the nozzles in a plane perpendicular to the axis of the tube to avoid shear and bending stresses in the tube.
  • FIG. 7 corresponds to FIG. 1 with the same reference numbers designating the same members
  • FIG. 8 which is a detail in cross-section of FIG. 7.
  • the two jet nozzles 16 and 17 apply hydro-dynamic reactions to the blade 9 which are orientated in the direction of the arrows 29 and 39.
  • the resultant of these two reactions is taken up by a mechanical device, such for example as a thin short blade 31, coupled on the one hand to the jet blade 9 and on the other to the fixed portion 32.
  • the invention provides that the blade 9 should be constructed in such manner that its two active faces 33 and 34, facing the jet nozzles 16 and 17 and co-operating therewith, are in a plane passing through the axis XX of the rigid shaft it), this plane being represented by the line Y-Y shown in FIG. 8.
  • a primary stage for a multistage distributor comprising a torsion tube adapted for rotation about an axis, a blade on said tube, means coupled to said tube to rotate the same, a pair of parallel jet nozzles adjacent said blade and controlling said distributor in accordance with the distance of said jet nozzles to said blade, said jet nozzles being on opposite sides of said axis of rotation and lying in a plane directed perpendicularly to said axis, such that said jet nozzles apply an unbalanced force in a plane perpendicular to the axis of rotation of said tube With the jet nozzles connected to a supply of a pressure medium, said unbalanced force normally producing shear and bending forces on said tube and means operatively coupled to said tube to resist said unbalanced force in the plane thereof to prevent the application of shear and bending forces on said tube.
  • a primary stage as claimed in claim 2 wherein the means resisting said unbalanced force comprises a nozzle aligned with each of the first said nozzles and on a side of the blade opposite to that of the first said nozzles.
  • a primary stage as claimed in claim 3 comprising means coupling nozzles on opposite sides of said blade and on opposite sides of said axis together for connection to a source of pressure medium.
  • a primary stage as claimed in claim 1 wherein said means for rotating the tube comprises a magnetic blade on said tube and a torque motor operatively coupled to said magnetic blade for rotating the same.
  • said torsion tube comprises a rigid shaft and a pair of tubes in end to end relation concentrically surrounding said rigid shaft, said blades being on different tubes and at ends remote from the adjacent ends of said tubes, means rigidly connecting said blades to the corresponding tube and to the rigid shaft, and means supporting said tubes at their adjacent ends.
  • a primary stage as claimed in claim 1 wherein said means resisting said unbalanced force comprises a thin blade perpendicular to the axis of said tube and having one end coupled to the first said blade and an opposite end which is fixedly supported with respect to said torsion tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Magnetically Actuated Valves (AREA)
US9115161 1960-03-02 1961-02-23 Primary stage of two-stage hydraulic distributor Expired - Lifetime US3054416A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR820125A FR1258366A (fr) 1960-03-02 1960-03-02 étage primaire à palette et tube de torsion pour distributeur hydraulique à deux étages
FR852924A FR80411E (fr) 1960-03-02 1961-02-16 étage primaire à palette et tube de torsion pour distributeur hydraulique à deux étages

Publications (1)

Publication Number Publication Date
US3054416A true US3054416A (en) 1962-09-18

Family

ID=26185146

Family Applications (1)

Application Number Title Priority Date Filing Date
US9115161 Expired - Lifetime US3054416A (en) 1960-03-02 1961-02-23 Primary stage of two-stage hydraulic distributor

Country Status (5)

Country Link
US (1) US3054416A (fr)
CH (1) CH373204A (fr)
DE (1) DE1156283B (fr)
FR (2) FR1258366A (fr)
GB (1) GB928616A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3095002A (en) * 1961-06-20 1963-06-25 Bendix Corp Dry type hydraulic servo valve
US3257911A (en) * 1963-08-15 1966-06-28 Moog Inc Fluid powered servomechanism of a redundant, majority voting type
US3703185A (en) * 1970-04-07 1972-11-21 E Systems Inc Force balancing flapper valve
US3756262A (en) * 1971-04-09 1973-09-04 Sperry Rand Corp Power transmission
US3878866A (en) * 1965-05-07 1975-04-22 Rech Etudes Production R E P Electro-hydraulic transducer amplifier with a plurality of control inputs, and associated methods
US3892260A (en) * 1972-12-29 1975-07-01 Rene Lucien Electro-hydraulic servo-distributor
US4362182A (en) * 1981-01-14 1982-12-07 Sundstrand Corporation Nozzle force feedback for pilot stage flapper

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1302520A (fr) * 1961-07-17 1962-08-31 Rech Etudes Prod étage primaire perfectionné pour distributeur hydraulique
US3290997A (en) * 1964-09-24 1966-12-13 Pneumo Dvnamics Corp Low pressure pneumatic proportional control system
FR1442527A (fr) * 1965-05-07 1966-06-17 Rech Etudes Prod Transducteur-amplificateur électro-hydraulique à pluralité d'entrées de commande
NL182337C (nl) * 1977-03-11 1988-02-16 Foxboro Co Elektro-pneumatische stuursignaalomzetter.
DE3630200A1 (de) * 1986-09-04 1988-03-17 Rexroth Mannesmann Gmbh Hydraulisches servoventil
DE3812769C2 (de) * 1988-04-16 1995-06-29 Hengstler Gmbh Pneumatisches Ventil zur Steuerung von Druckluftströmen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1827560A (en) * 1928-10-29 1931-10-13 George S Binckley Means for transmission of motion
US2835265A (en) * 1955-11-16 1958-05-20 Bendix Aviat Corp Transfer valve

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1050795A (fr) * 1952-02-13 1954-01-11 Rech S Etudes Distributeur électro-magnétique de fluide à action progressive
FR1137106A (fr) * 1955-11-28 1957-05-23 Rech S Etudes Distributeur hydraulique, notamment à commande électromagnétique
DE1069972B (fr) * 1957-01-30 1959-11-26

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1827560A (en) * 1928-10-29 1931-10-13 George S Binckley Means for transmission of motion
US2835265A (en) * 1955-11-16 1958-05-20 Bendix Aviat Corp Transfer valve

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3095002A (en) * 1961-06-20 1963-06-25 Bendix Corp Dry type hydraulic servo valve
US3257911A (en) * 1963-08-15 1966-06-28 Moog Inc Fluid powered servomechanism of a redundant, majority voting type
US3878866A (en) * 1965-05-07 1975-04-22 Rech Etudes Production R E P Electro-hydraulic transducer amplifier with a plurality of control inputs, and associated methods
US3703185A (en) * 1970-04-07 1972-11-21 E Systems Inc Force balancing flapper valve
US3756262A (en) * 1971-04-09 1973-09-04 Sperry Rand Corp Power transmission
US3892260A (en) * 1972-12-29 1975-07-01 Rene Lucien Electro-hydraulic servo-distributor
US4362182A (en) * 1981-01-14 1982-12-07 Sundstrand Corporation Nozzle force feedback for pilot stage flapper

Also Published As

Publication number Publication date
FR1258366A (fr) 1961-04-14
FR80411E (fr) 1963-04-26
GB928616A (en) 1963-06-12
DE1156283B (de) 1963-10-24
CH373204A (fr) 1963-11-15

Similar Documents

Publication Publication Date Title
US3054416A (en) Primary stage of two-stage hydraulic distributor
US2835265A (en) Transfer valve
US2962611A (en) Electromagnetic actuator
US3081787A (en) Hydraulic control valve
US3101650A (en) Hydromechanical rate damped servo system
US3279323A (en) Electrohydraulic actuator
US4343329A (en) Bistable fuel valve
EP0057969A1 (fr) Vannes de commande
US3311130A (en) Thrust vectoring system and control valve therefor
US3257911A (en) Fluid powered servomechanism of a redundant, majority voting type
US3042005A (en) Dynamic pressure feedback servo valve
US3245424A (en) Servo valve
US3455330A (en) Single-stage proportional control servovalve
US2930945A (en) Power transmission
US4325412A (en) Single stage hydraulic valve
US3028880A (en) Fluid flow control valve
US3212473A (en) Hydroacoustic transducer
US3137309A (en) Frictionless zero spring rate seal
US2345169A (en) Angular rate gyroscope for automatic steering
US3033232A (en) Control valves
US3217728A (en) Torque motor servo valve assembly
US2972338A (en) Pressure derivative feedback valve
US3774644A (en) Converter for converting electrical signals into fluid signals
US3473548A (en) Electrohydraulic servo mechanism
US2945478A (en) High frequency response valve