IT1117190B - Perfezionamento nelle servovalvole - Google Patents
Perfezionamento nelle servovalvoleInfo
- Publication number
- IT1117190B IT1117190B IT4880179A IT4880179A IT1117190B IT 1117190 B IT1117190 B IT 1117190B IT 4880179 A IT4880179 A IT 4880179A IT 4880179 A IT4880179 A IT 4880179A IT 1117190 B IT1117190 B IT 1117190B
- Authority
- IT
- Italy
- Prior art keywords
- improvement
- servo valves
- servo
- valves
- Prior art date
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
-
- 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
- F15B13/16—Special measures for feedback, e.g. by a follow-up 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
- Y10T137/2278—Pressure modulating relays or followers
- Y10T137/2322—Jet control 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
- Y10T137/2409—With counter-balancing pressure feedback to the modulating 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
- Y10T137/8593—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)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Servomotors (AREA)
- Fluid-Driven Valves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/901,362 US4368750A (en) | 1978-04-28 | 1978-04-28 | Ball-type feedback motor for servovalves |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7948801A0 IT7948801A0 (it) | 1979-04-20 |
IT1117190B true IT1117190B (it) | 1986-02-17 |
Family
ID=25414020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT4880179A IT1117190B (it) | 1978-04-28 | 1979-04-20 | Perfezionamento nelle servovalvole |
Country Status (5)
Country | Link |
---|---|
US (1) | US4368750A (it) |
DE (1) | DE2916359A1 (it) |
GB (1) | GB2020064B (it) |
IT (1) | IT1117190B (it) |
SE (1) | SE7903593L (it) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3150252A1 (de) * | 1981-12-18 | 1983-06-30 | Vereinigte Flugtechnische Werke Gmbh, 2800 Bremen | Schaltventil fuer hydraulische stellglieder |
US4537220A (en) * | 1983-02-28 | 1985-08-27 | Sundstrand Corporation | Two member boost stage valve for a hydraulic control |
US4683915A (en) * | 1985-02-25 | 1987-08-04 | Sloate Harry M | Pilot controlled valves |
US4779648A (en) * | 1985-02-25 | 1988-10-25 | Sloate Harry M | Pilot controlled valves |
US4674539A (en) * | 1986-02-20 | 1987-06-23 | Sloate Harry M | Rotary servo valve |
US4762147A (en) * | 1986-02-20 | 1988-08-09 | Sloate Harry M | Servo valve with torque feedback |
US5031653A (en) * | 1990-07-12 | 1991-07-16 | Hr Textron Inc. | Differential cylinder pressure gain compensation for single stage servovalve |
US7455074B2 (en) * | 2005-07-28 | 2008-11-25 | Honeywell International Inc. | Latchable electrohydraulic servovalve |
CN101893011A (zh) * | 2010-07-30 | 2010-11-24 | 三一重工股份有限公司 | 液压阀、液压阀组及其控制方法 |
CN108716489B (zh) * | 2018-08-07 | 2020-04-10 | 上海航天控制技术研究所 | 一种电液压力伺服阀功率级结构 |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2989987A (en) * | 1956-05-07 | 1961-06-27 | Sanders Associates Inc | 2-stage hydraulic servo valve |
US2884906A (en) * | 1956-05-23 | 1959-05-05 | Raymond Atchley Inc | Servo-mechanism |
US2985141A (en) * | 1958-11-14 | 1961-05-23 | Robert D Gustafson | High performance hydraulic servo valve |
US2993477A (en) * | 1958-12-17 | 1961-07-25 | Ibm | Regenerative hydraulic control valve |
US3095906A (en) * | 1959-03-05 | 1963-07-02 | Moog Servocontrols Inc | Flow control servo valve with dynamic load pressure feedback |
US3064627A (en) * | 1959-03-23 | 1962-11-20 | Bell Aerospace Corp | Derivative load pressure feedback |
US3311123A (en) * | 1959-04-27 | 1967-03-28 | Pneumo Dynamics Corp | Electrohydraulic servo valve |
US2953123A (en) * | 1959-10-30 | 1960-09-20 | Textron Electronics Inc | Electrohydraulic servo valve |
US3260273A (en) * | 1960-04-04 | 1966-07-12 | Sanders Associates Inc | Motor valve having differential pressure feedback |
US3101741A (en) * | 1961-04-12 | 1963-08-27 | Walter D Ludwig | Pilot air operated valve |
US3162093A (en) * | 1961-06-09 | 1964-12-22 | Zoller Elisabeth Katharina | Hydraulic servo-mechanism |
US3258025A (en) * | 1963-02-04 | 1966-06-28 | Cadillac Gage Co | Electro-hydraulic control valve |
US3266380A (en) * | 1963-11-26 | 1966-08-16 | Stanford Research Inst | Pneumatic operational amplifier system |
US3384102A (en) * | 1964-04-29 | 1968-05-21 | Ozone Metal Products Corp | Pressure control valve |
US3426784A (en) * | 1965-10-22 | 1969-02-11 | Bendix Corp | Flow equalizer and proportioner valve |
US3464318A (en) * | 1966-06-03 | 1969-09-02 | Moog Inc | Servomechanism providing static load error washout |
US3485140A (en) * | 1966-10-06 | 1969-12-23 | Gen Electric | All-hydraulic control system responsive to electrical command signals |
US3424183A (en) * | 1967-03-15 | 1969-01-28 | Abex Corp | Solenoid controlled servovalve with lineal output |
US3473547A (en) * | 1967-09-15 | 1969-10-21 | Abex Corp | Electromechanical driver for hydraulic valve and the like |
US3592211A (en) * | 1967-11-30 | 1971-07-13 | Hawker Siddeley Dynamics Ltd | Pressure-regulating valve |
US3648564A (en) * | 1970-04-03 | 1972-03-14 | Honeywell Inc | Hydraulic fluidic servoactuators |
BE789975A (fr) * | 1971-10-12 | 1973-02-01 | Sanders Associates Inc | Valve de controle de pression et de debit |
US3835888A (en) * | 1971-12-07 | 1974-09-17 | Bosch Gmbh Robert | Electro hydraulic servo control valve |
US3748454A (en) * | 1972-01-31 | 1973-07-24 | Fischer & Porter Co | Pneumatic computing devices |
US4291716A (en) * | 1977-05-13 | 1981-09-29 | Honeywell Inc. | Pilot stage valve |
-
1978
- 1978-04-28 US US05/901,362 patent/US4368750A/en not_active Expired - Lifetime
-
1979
- 1979-03-20 GB GB7909688A patent/GB2020064B/en not_active Expired
- 1979-04-20 IT IT4880179A patent/IT1117190B/it active
- 1979-04-23 DE DE19792916359 patent/DE2916359A1/de not_active Withdrawn
- 1979-04-24 SE SE7903593A patent/SE7903593L/ not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
SE7903593L (sv) | 1979-10-29 |
DE2916359A1 (de) | 1979-11-08 |
US4368750A (en) | 1983-01-18 |
IT7948801A0 (it) | 1979-04-20 |
GB2020064B (en) | 1982-08-18 |
GB2020064A (en) | 1979-11-07 |
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