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 regionInfo
- 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- Withdrawn
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.
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)
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 |
-
1976
- 1976-01-22 DE DE19762602328 patent/DE2602328C3/en not_active Expired
- 1976-01-23 FR FR7601769A patent/FR2299575A1/en not_active Withdrawn
- 1976-02-03 JP JP1006876A patent/JPS51103319A/en active Pending
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 |