GB1375517A - - Google Patents

Info

Publication number
GB1375517A
GB1375517A GB3506873A GB3506873A GB1375517A GB 1375517 A GB1375517 A GB 1375517A GB 3506873 A GB3506873 A GB 3506873A GB 3506873 A GB3506873 A GB 3506873A GB 1375517 A GB1375517 A GB 1375517A
Authority
GB
United Kingdom
Prior art keywords
length
supress
wavelength
pair
characteristic frequency
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
Application number
GB3506873A
Other languages
English (en)
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 filed Critical
Publication of GB1375517A publication Critical patent/GB1375517A/en
Expired legal-status Critical Current

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
    • F15B13/0438—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
    • Y10T137/8593—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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Servomotors (AREA)
GB3506873A 1973-06-14 1973-07-23 Expired GB1375517A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00369789A US3857541A (en) 1973-06-14 1973-06-14 Servovalve with oscillation filter

Publications (1)

Publication Number Publication Date
GB1375517A true GB1375517A (enrdf_load_stackoverflow) 1974-11-27

Family

ID=23456925

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3506873A Expired GB1375517A (enrdf_load_stackoverflow) 1973-06-14 1973-07-23

Country Status (4)

Country Link
US (1) US3857541A (enrdf_load_stackoverflow)
JP (1) JPS5610484B2 (enrdf_load_stackoverflow)
DE (1) DE2343552A1 (enrdf_load_stackoverflow)
GB (1) GB1375517A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3533923A1 (de) * 1985-09-06 1987-04-02 Vni I Pk I Promyslennych Gidro Elektrohydraulischer verstaerker-umformer
CN112549492A (zh) * 2020-10-10 2021-03-26 浙江长海包装集团有限公司 一种加工复合包装膜的挤出机的过滤装置

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2344722A1 (fr) * 1976-03-15 1977-10-14 Semt Dispositif d'amortissement des ondes de pr ession dans un systeme d'injection de combustible d'un moteur a combustion interne
US4343329A (en) * 1978-12-06 1982-08-10 Textron Inc. Bistable fuel valve
USRE31107E (en) * 1978-12-07 1982-12-21 Deere & Company Feedback shaft extending between swashplate and displacement control valve
US4229144A (en) * 1978-12-07 1980-10-21 Deere & Company Feedback shaft extending between swashplate and displacement control valve
US4265272A (en) * 1979-10-01 1981-05-05 Eaton Corporation Transient start-up eliminator for pressure piloted valve
DE8107889U1 (de) * 1981-03-18 1981-10-22 Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen Pneumatische ventilanordnung
US4538633A (en) * 1983-02-18 1985-09-03 Parker-Hannifin Corporation Optical-hydraulic control system
JPS59165890U (ja) * 1983-04-22 1984-11-07 長尾　秀喜 全油圧式クロ−ラ−クレ−ン
JPS6022549U (ja) * 1983-07-21 1985-02-16 油谷重工株式会社 油圧ショベル用アタッチメント
JPS6110357U (ja) * 1984-06-22 1986-01-22 油谷重工株式会社 油圧シヨベルのクレ−ン装置
JPS6110356U (ja) * 1984-06-22 1986-01-22 油谷重工株式会社 油圧シヨベルのクレ−ン装置
US4922217A (en) * 1988-06-17 1990-05-01 Hsc Controls, Inc. Torque motor with magnet armature
US4922963A (en) * 1989-02-27 1990-05-08 Hsc Controls Inc. Hydraulic servovalve
US5697401A (en) * 1995-07-14 1997-12-16 Ebara Corporation Hydraulic servovalve
US6755205B1 (en) * 2002-09-12 2004-06-29 Woodward Governor Company Method to stabilize a nozzle flapper valve
DE102012002921A1 (de) * 2012-02-14 2013-08-14 Liebherr-Aerospace Lindenberg Gmbh Servoventil
CN103615431B (zh) * 2013-12-04 2015-12-09 中国航空工业第六一八研究所 用于液压作动器伺服阀的散热力矩马达罩
WO2018198355A1 (ja) * 2017-04-28 2018-11-01 ピー・エス・シー株式会社 フィードバックばねを用いた気体圧サーボ弁
EP3536980B1 (en) * 2018-03-08 2022-12-28 Hamilton Sundstrand Corporation Valve body for a servovalve
EP3546808B1 (en) 2018-03-29 2023-05-10 Hamilton Sundstrand Corporation Valves
EP3562013B1 (en) * 2018-04-26 2021-11-03 Hamilton Sundstrand Corporation Servovalve
CN109083879B (zh) * 2018-08-09 2020-06-23 杭州电子科技大学 一种抑制喷嘴挡板式电液伺服阀前置级气穴现象的方法
EP3715687B1 (en) * 2019-03-29 2021-10-13 Hamilton Sundstrand Corporation Servo valves
EP4141263B1 (en) * 2021-08-25 2024-09-25 Hamilton Sundstrand Corporation Servovalve comprising a filter assembly

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3095906A (en) * 1959-03-05 1963-07-02 Moog Servocontrols Inc Flow control servo valve with dynamic load pressure feedback
US3347252A (en) * 1965-06-18 1967-10-17 United Aircraft Corp Fluid signal generator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3533923A1 (de) * 1985-09-06 1987-04-02 Vni I Pk I Promyslennych Gidro Elektrohydraulischer verstaerker-umformer
CN112549492A (zh) * 2020-10-10 2021-03-26 浙江长海包装集团有限公司 一种加工复合包装膜的挤出机的过滤装置
CN112549492B (zh) * 2020-10-10 2023-09-12 浙江长海包装集团有限公司 一种加工复合包装膜的挤出机的过滤装置

Also Published As

Publication number Publication date
JPS5015978A (enrdf_load_stackoverflow) 1975-02-20
JPS5610484B2 (enrdf_load_stackoverflow) 1981-03-09
US3857541A (en) 1974-12-31
DE2343552A1 (de) 1975-01-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19930722