FR2299575A1 - Flow regulating passages in hydraulic servo-valves - minimise wear and noise by orifice disc control stack in outlet region - Google Patents

Flow regulating passages in hydraulic servo-valves - minimise wear and noise by orifice disc control stack in outlet region

Info

Publication number
FR2299575A1
FR2299575A1 FR7601769A FR7601769A FR2299575A1 FR 2299575 A1 FR2299575 A1 FR 2299575A1 FR 7601769 A FR7601769 A FR 7601769A FR 7601769 A FR7601769 A FR 7601769A FR 2299575 A1 FR2299575 A1 FR 2299575A1
Authority
FR
France
Prior art keywords
valves
spool
passages
hydraulic servo
flow regulating
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.)
Withdrawn
Application number
FR7601769A
Other languages
French (fr)
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.)
Bendix Corp
Original Assignee
Bendix Corp
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 Bendix Corp filed Critical Bendix Corp
Publication of FR2299575A1 publication Critical patent/FR2299575A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/34—Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding Valves (AREA)
  • Servomotors (AREA)
  • Multiple-Way Valves (AREA)

Abstract

Flow regulating discs built into the spool housing of hydraulic servo valves in the region of the output ports enables control of pressure drops to avoid high erosion conditions. The valves are specifically intended to avoid high velocity flow conditions across the precision control surfaces of valves used in aircraft systems operating with fire-safe fluids of a corrosive nature. The servo valve spool is supplied with fluid over an input passage and transmits to outputs over a central relieved section in a proportional way depending upon axial position of the spool. The valve lands operate relative to passages in the outer sleeve. The passages are formed by a stack of circular discs with interconnecting orifices that are selected to provide a predetermined flow passage dependent upon the axial position of the centre spool.
FR7601769A 1975-02-03 1976-01-23 Flow regulating passages in hydraulic servo-valves - minimise wear and noise by orifice disc control stack in outlet region Withdrawn FR2299575A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US54684075A 1975-02-03 1975-02-03

Publications (1)

Publication Number Publication Date
FR2299575A1 true FR2299575A1 (en) 1976-08-27

Family

ID=24182249

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7601769A Withdrawn FR2299575A1 (en) 1975-02-03 1976-01-23 Flow regulating passages in hydraulic servo-valves - minimise wear and noise by orifice disc control stack in outlet region

Country Status (3)

Country Link
JP (1) JPS51103319A (en)
DE (1) DE2602328C3 (en)
FR (1) FR2299575A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2635923C3 (en) * 1976-08-10 1981-03-26 Kubota Ltd., Osaka In-line valve
DE3432466C2 (en) * 1984-09-04 1986-10-30 Boge Gmbh, 5208 Eitorf Throttle valve
DE3939813A1 (en) * 1989-12-01 1991-06-06 Boge Ag Magnetic throttle valve for gas and fluid control - uses opposing electromagnets on permanent magnet slide valve

Also Published As

Publication number Publication date
DE2602328A1 (en) 1976-08-05
JPS51103319A (en) 1976-09-11
DE2602328C3 (en) 1979-12-13
DE2602328B2 (en) 1979-05-03

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Legal Events

Date Code Title Description
ST Notification of lapse