IT1114036B - Servovalvola a blocco per guasto - Google Patents

Servovalvola a blocco per guasto

Info

Publication number: IT1114036B
Authority: IT; Italy
Prior art keywords: failure; servo valve; valve lock; lock; servo
Prior art date: 1978-09-25

Application number

IT2294479A

Other languages

English (en)

Other versions

IT7922944A0 (it

Original Assignee

Gen Electric

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.)

1978-09-25

Filing date

1979-05-24

Publication date

1986-01-27

1979-05-24 Application filed by Gen Electric filed Critical Gen Electric

1979-05-24 Publication of IT7922944A0 publication Critical patent/IT7922944A0/it

1986-01-27 Application granted granted Critical

1986-01-27 Publication of IT1114036B publication Critical patent/IT1114036B/it

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
- 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
- F15B13/0436—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 steerable jet 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
- Y10T137/86493—Multi-way valve unit
- Y10T137/86574—Supply and exhaust
- Y10T137/86582—Pilot-actuated
- Y10T137/8659—Variable orifice-type 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
- Y10T137/8659—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
- Y10T137/86614—Electric
- 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
- Y10T137/86694—Piston valve
- Y10T137/8671—With annular passage [e.g., spool]

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Servomotors (AREA)
Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

IT2294479A 1978-09-25 1979-05-24 Servovalvola a blocco per guasto IT1114036B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/945,165 US4227443A (en)	1978-09-25	1978-09-25	Fail-fixed servovalve

Publications (2)

Publication Number	Publication Date
IT7922944A0 IT7922944A0 (it)	1979-05-24
IT1114036B true IT1114036B (it)	1986-01-27

Family

ID=25482735

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT2294479A IT1114036B (it)	1978-09-25	1979-05-24	Servovalvola a blocco per guasto

Country Status (7)

Country	Link
US (1)	US4227443A (it)
JP (1)	JPS5544173A (it)
CA (1)	CA1112540A (it)
DE (1)	DE2921030A1 (it)
FR (1)	FR2436926A1 (it)
GB (1)	GB2030325B (it)
IT (1)	IT1114036B (it)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4267862A (en) *	1979-02-21	1981-05-19	Mac Valves, Inc.	Directional control valve with flow path through valve spool
US4378031A (en) *	1979-05-22	1983-03-29	Koehring Company	Electrohydraulic servovalve
US4381702A (en) *	1980-11-21	1983-05-03	Sundstrand Corporation	Displacement control for a hydraulic pump or motor with failure override
US4470337A (en) *	1982-07-06	1984-09-11	General Electric Company	Fail-fixed servovalve with positive fluid feedback
JPS5954873A (ja) *	1982-09-21	1984-03-29	Aisin Seiki Co Ltd	電動式流量比例制御弁
US4510848A (en) *	1982-09-30	1985-04-16	General Electric Company	Shear-type fail-fixed servovalve
US4538504A (en) *	1983-11-18	1985-09-03	General Electric Company	Fail-safe servovalve system
US4827981A (en) *	1988-01-25	1989-05-09	Moog Inc.	Fail-fixed servovalve with controlled hard-over leakage
DE59305886D1 (de) *	1993-07-29	1997-04-24	Moog Gmbh	Hydraulischer Verstärker, insbesondere für Steuerventile
US5553827A (en) *	1993-11-17	1996-09-10	Alliedsignal Inc.	Low current electro-hydraulic metering module
FR2818331B1 (fr) *	2000-12-19	2003-03-14	Snecma Moteurs	Servo-valve a memoire de position
US7093607B2 (en) *	2004-03-23	2006-08-22	Hr Textron, Inc.	Methods and apparatus for maintaining pressure gain in a servovalve assembly
FR2873828B1 (fr) *	2004-07-27	2006-10-20	In Lhc Soc Par Actions Simplif	Servovalve de regulation de pression a debit de fuite reduit
US7455074B2 (en) *	2005-07-28	2008-11-25	Honeywell International Inc.	Latchable electrohydraulic servovalve
FR2914030B1 (fr) *	2007-03-21	2009-07-03	Hispano Suiza Sa	Dispositif de commande de position d'un actionneur par une servovalve a memoire de position en cas de panne
US9447797B2 (en) *	2011-03-15	2016-09-20	Moog Controls Ltd.	Servovalve actuation
FR2981133B1 (fr) *	2011-10-10	2013-10-25	In Lhc	Procede de detection de defaillance d'une servovalve et servovalve faisant application.
EP2889491B1 (en) *	2013-12-24	2018-06-06	Goodrich Actuation Systems SAS	Servo valves
FR3024505B1 (fr) *	2014-07-31	2016-08-05	Zodiac Hydraulics	Servovalve a ensemble mobile double
EP3023647B1 (en) *	2014-11-24	2020-07-08	Goodrich Actuation Systems SAS	Servovalve jet pipe
EP3208473B1 (en) *	2016-02-19	2019-04-03	Hamilton Sundstrand Corporation	Jet pipe arrangement for a servo valve
EP3321516B1 (en) *	2016-11-09	2020-05-13	Hamilton Sundstrand Corporation	Servovalve
EP3431780B1 (en) *	2017-07-20	2020-04-15	Hamilton Sundstrand Corporation	Servovalve
US11473598B2 (en) *	2019-10-25	2022-10-18	Woodward, Inc.	Failsafe electro-hydraulic servo valve

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2742022A (en) *	1952-04-24	1956-04-17	Askania Regulator Co	Proportional fluid delivery relay jet pipe regulator
GB928802A (en) *	1959-03-12	1963-06-12	Normalair Ltd	Improvements in and relating to fluid-pressure servomotor control systems
NL121227C (it) *	1959-06-04	1900-01-01
US3028880A (en) *	1960-04-05	1962-04-10	Sperry Rand Corp	Fluid flow control valve
DE1175553B (de) *	1960-11-08	1964-08-06	Continental Elektro Ind Ag	Elektro-hydraulischer oder elektro-pneumatischer Stellantrieb mit Verstellmoeglichkeit von Hand
DE2339124A1 (de) *	1973-08-02	1975-02-20	Daimler Benz Ag	Hitzdraht-gesteuerte vorsteuerdrossel
US3922955A (en) *	1974-01-29	1975-12-02	Gen Electric	Fail-fixed servovalve

1978
- 1978-09-25 US US05/945,165 patent/US4227443A/en not_active Expired - Lifetime
1979
- 1979-05-15 GB GB7916757A patent/GB2030325B/en not_active Expired
- 1979-05-23 DE DE19792921030 patent/DE2921030A1/de not_active Ceased
- 1979-05-23 FR FR7913172A patent/FR2436926A1/fr active Granted
- 1979-05-24 IT IT2294479A patent/IT1114036B/it active
- 1979-05-24 JP JP6333079A patent/JPS5544173A/ja active Granted
- 1979-08-31 CA CA334,892A patent/CA1112540A/en not_active Expired

Also Published As

Publication number	Publication date
JPS5544173A (en)	1980-03-28
JPS6327563B2 (it)	1988-06-03
FR2436926A1 (fr)	1980-04-18
DE2921030A1 (de)	1980-04-03
GB2030325A (en)	1980-04-02
CA1112540A (en)	1981-11-17
US4227443A (en)	1980-10-14
FR2436926B1 (it)	1985-05-10
GB2030325B (en)	1983-03-02
IT7922944A0 (it)	1979-05-24

Publication	Publication Date	Title
IT1114036B (it)	1986-01-27	Servovalvola a blocco per guasto
IT1150329B (it)	1986-12-10	Servovalvola a cassetto
BE874736A (fr)	1979-07-02	Soupape a clapet
IT1119563B (it)	1986-03-10	Serratura a comando magnetico
IT8148355A0 (it)	1981-04-28	Serratura a combinazione
AR218377A1 (es)	1980-05-30	Valvula a comando electromagnetico
ES253624Y (es)	1981-12-01	Un burlete
FR2484044B1 (fr)	1985-06-21	Robinet-vanne a opercule
IT7967659A0 (it)	1979-03-29	Valvola elettromagnetica a servocomando
IT1128397B (it)	1986-05-28	Struttura di valvola a saracinesca
FR2344773A1 (fr)	1977-10-14	Robinet a soupape a commande assistee
IT1130051B (it)	1986-06-11	Impianto a serrature
IT7822779V0 (it)	1978-09-15	Mascherina per cassette a struttura perfezionata.
IT7924036A0 (it)	1979-07-02	Servovalvola.
IT1136641B (it)	1986-09-03	Serratura a cilindro
IT1112505B (it)	1986-01-20	Disposizione per un servofreno idraulico
DK150189C (da)	1987-10-12	Hydraulisk styreindretning for en servomotor
SE7904972L (sv)	1979-12-11	Bromsventil for ett tvakrets bromssystem
BE875322A (fr)	1979-07-31	Valve a servo-commande.
IT8012440A0 (it)	1980-02-11	Valvola a farfalla perfezionata
SE8001128L (sv)	1980-08-27	Servoventil
IT7968226A0 (it)	1979-06-06	Rubinetto a maschio
JPS5557705A (en)	1980-04-28	Electrohydraulic servo valve
IT1121444B (it)	1986-04-02	Valvola a saracinesca rotante
IT1063178B (it)	1985-02-11	Attuatore a depressione..specialmente per servocomandi