SE350574B - - Google Patents

Info

Publication number: SE350574B
Authority: SE; Sweden

Application number

SE684070A

Inventor

J Byers

Original Assignee

Sanders Associates Inc

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.)

1969-07-01

Filing date

1970-05-19

Publication date

1972-10-30

1970-05-19 Application filed by Sanders Associates Inc filed Critical Sanders Associates Inc

1972-10-30 Publication of SE350574B publication Critical patent/SE350574B/xx

Links

Classifications

- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/09—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by means for actuating valves
- 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
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20538—Type of pump constant capacity
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/255—Flow control functions
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/26—Power control functions
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/329—Directional control characterised by the type of actuation actuated by fluid pressure
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5151—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a directional control valve
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/52—Pressure control characterised by the type of actuation
- F15B2211/528—Pressure control characterised by the type of actuation actuated by fluid pressure
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
- F15B2211/7053—Double-acting output members
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/75—Control of speed of the output member
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/76—Control of force or torque of the output member
- 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
- 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
- Y10T137/86606—Common to plural valve motor chambers
- 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
- Y10T137/86614—Electric

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
General Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Combustion & Propulsion (AREA)
Transportation (AREA)
Servomotors (AREA)
Multiple-Way Valves (AREA)
Fluid-Pressure Circuits (AREA)

SE684070A 1969-07-01 1970-05-19 SE350574B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US83806269A	1969-07-01	1969-07-01

Publications (1)

Publication Number	Publication Date
SE350574B true SE350574B (it)	1972-10-30

Family

ID=25276148

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE684070A SE350574B (it)	1969-07-01	1970-05-19

Country Status (11)

Country	Link
US (1)	US3561488A (it)
JP (1)	JPS5012558B1 (it)
BE (1)	BE752583A (it)
CA (1)	CA931855A (it)
CH (1)	CH538054A (it)
DE (1)	DE2032395C3 (it)
FR (1)	FR2056329A5 (it)
GB (1)	GB1273297A (it)
IL (1)	IL34445A (it)
NL (1)	NL7008883A (it)
SE (1)	SE350574B (it)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2158230C3 (de) *	1971-11-24	1974-04-11	Westinghouse Bremsen- Und Apparatebau Gmbh, 3000 Hannover	Hydraulische Steuereinrichtung
US3742981A (en) *	1972-02-24	1973-07-03	Sanders Associates Inc	Flow control valve with single spool second stage
DE2305835A1 (de) *	1973-02-07	1974-08-15	Danfoss As	Hydraulische steuereinrichtung, insbesondere lenkeinrichtung
DE2305798C3 (de) *	1973-02-07	1975-09-18	Danfoss A/S, Nordborg (Daenemark)	Hydraulische Steuereinrichtung für einen Servomotor, insbesondere für Fahrzeuglenkungen
JPS5838669B2 (ja) *	1974-07-08	1983-08-24	株式会社不二越	アツリヨクホシヨウツキリユウリヨウセイギヨベン
US4094229A (en) *	1974-11-05	1978-06-13	Leonard Willie B	Fluidic repeater
US4215623A (en) *	1978-04-12	1980-08-05	Sanders Associates, Inc.	Hydraulic velocity and acceleration control system
DE2932847C2 (de) *	1979-08-14	1982-05-13	Danfoss A/S, 6430 Nordborg	Hydraulische Steuervorrichtung für einen Servomotor, insbesondere für Fahrzeuglenkungen
DE2941938C2 (de) *	1979-10-17	1982-05-19	Danfoss A/S, 6430 Nordborg	Hydraulischer Verstärker für einen Servomotor
FR2534984B1 (fr) *	1982-10-21	1987-04-17	Bennes Marrel	Dispositif de commande a distance amplifiee pour un circuit hydraulique
CS235845B1 (en) *	1983-04-27	1985-05-15	Bohumil Polacek	Hydraulic two-stage control device for a servomotor
DE3428403A1 (de) *	1983-08-01	1985-04-11	Závody t&ecaron;&zcaron;kého strojírenství Výzkumný ústav stavebních a zemních stroju, Brünn/Brno	Zweistufige, druckkompensierte hydraulische steuereinrichtung fuer mindestens zwei verbraucher
US4664135A (en) *	1984-05-07	1987-05-12	Sanders Associates, Inc.	Pilot valve
US5137254A (en) *	1991-09-03	1992-08-11	Caterpillar Inc.	Pressure compensated flow amplifying poppet valve
WO1999063232A1 (en)	1998-06-05	1999-12-09	J. Otto Byers & Associates	Servo positioning system
US9458905B2 (en)	2012-09-20	2016-10-04	Steelcase Inc.	Spring assembly and method
GB201313804D0 (en) *	2013-08-01	2013-09-18	Moog Controls Ltd	Improvements in hydraulic servovalves
CN109058206A (zh) *	2018-09-29	2018-12-21	吕伟健	一种液压流量控制器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3228423A (en) *	1956-01-23	1966-01-11	Moog Servocontrols Inc	Fluid control valve in which a mechanical motion is transmitted from a dry region to a pressurized fluid filled region
US3054388A (en) *	1961-07-03	1962-09-18	Bell Aerospace Corp	Servo valve with flow rate feedback
US3357444A (en) *	1965-01-21	1967-12-12	Weston Instruments Inc	Fluid flow control
US3363366A (en) *	1965-06-30	1968-01-16	Barnes Drill Co	Abrading machine
US3464318A (en) *	1966-06-03	1969-09-02	Moog Inc	Servomechanism providing static load error washout

1969
- 1969-07-01 US US3561488D patent/US3561488A/en not_active Expired - Lifetime
1970
- 1970-05-04 IL IL34445A patent/IL34445A/en unknown
- 1970-05-04 CA CA081780A patent/CA931855A/en not_active Expired
- 1970-05-19 SE SE684070A patent/SE350574B/xx unknown
- 1970-06-09 GB GB2796070A patent/GB1273297A/en not_active Expired
- 1970-06-16 CH CH914270A patent/CH538054A/it not_active IP Right Cessation
- 1970-06-17 NL NL7008883A patent/NL7008883A/xx not_active Application Discontinuation
- 1970-06-20 JP JP5398770A patent/JPS5012558B1/ja active Pending
- 1970-06-24 FR FR7023359A patent/FR2056329A5/fr not_active Expired
- 1970-06-26 BE BE752583D patent/BE752583A/xx unknown
- 1970-06-30 DE DE2032395A patent/DE2032395C3/de not_active Expired

Also Published As

Publication number	Publication date
IL34445A0 (en)	1970-07-19
GB1273297A (en)	1972-05-03
CA931855A (en)	1973-08-14
IL34445A (en)	1973-02-28
JPS5012558B1 (it)	1975-05-13
DE2032395C3 (de)	1978-08-31
BE752583A (fr)	1970-12-01
CH538054A (it)	1973-06-15
DE2032395B2 (de)	1978-01-05
NL7008883A (it)	1971-01-05
US3561488A (en)	1971-02-09
FR2056329A5 (it)	1971-05-14
DE2032395A1 (de)	1971-01-14

Publication	Publication Date	Title
AU2270770A (it)	1972-06-01
FR2056329A5 (it)	1971-05-14
AU465452B2 (it)	1975-09-11
AU429630B2 (it)	1972-10-26
AU5712069A (it)	1971-01-07
CS153568B2 (it)	1974-02-25
AU427401B2 (it)	1972-08-17
AU410358B2 (it)	1971-02-09
AU442357B2 (it)	1973-11-07
AU425297B2 (it)	1972-03-26
AT308690B (it)	1973-06-15
AU442322B2 (it)	1973-11-02
AU470661B1 (it)	1970-10-05
AU442535B2 (it)	1973-11-12
AU428129B2 (it)	1972-09-12
AU438128B2 (it)	1973-07-16
AU428074B2 (it)	1972-09-11
AU442285B2 (it)	1973-11-02
AU6144869A (it)	1971-04-01
AR203167Q (it)	1975-08-22
AU4923469A (it)	1970-07-23
AU6261969A (it)	1971-04-22
AU6254169A (it)	1969-12-04
AU5079269A (it)	1971-07-01
AU5988769A (it)	1971-02-25