GB1428548A - Pistonvalves having means for reducing the noise caused by cavitation therein - Google Patents
Pistonvalves having means for reducing the noise caused by cavitation thereinInfo
- Publication number
- GB1428548A GB1428548A GB1960473A GB1960473A GB1428548A GB 1428548 A GB1428548 A GB 1428548A GB 1960473 A GB1960473 A GB 1960473A GB 1960473 A GB1960473 A GB 1960473A GB 1428548 A GB1428548 A GB 1428548A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- flow
- cavitation
- noise caused
- port
- 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
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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Details Of Valves (AREA)
- Fluid-Damping Devices (AREA)
Abstract
1428548 Valves KARL-HEINZ THOMAS [trading as LANGEN & CO] 25 April 1973 [29 April 1972] 19604/73 Heading F2V A piston valve for controlling the flow of liquid under pressure to exhaust, comprises a piston 51 for regulating the flow between a port A and an exhaust port T, and an axial bore 62 in the piston the end of which is normally covered by a spring-loaded valve disc 68 which acts as a pressure-reducing valve providing a flow restriction in the flow path between the two ports, when the piston is lifted, to reduce noise caused by cavitation. A pressure port P communicates with the top of the piston through an axial duet 69, and the piston is controlled by a tappet 65 actuated by a lever 66.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722221238 DE2221238C2 (en) | 1972-04-29 | 1972-04-29 | Arrangement to reduce the cavitation noise on the control piston |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1428548A true GB1428548A (en) | 1976-03-17 |
Family
ID=5843713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1960473A Expired GB1428548A (en) | 1972-04-29 | 1973-04-25 | Pistonvalves having means for reducing the noise caused by cavitation therein |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2221238C2 (en) |
GB (1) | GB1428548A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2902751C2 (en) * | 1979-01-25 | 1981-03-12 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Control valve |
US5295512A (en) * | 1992-02-24 | 1994-03-22 | M. B. Adams And Associates, Inc. | Fluid control spool valve |
EP3864253A1 (en) * | 2018-10-08 | 2021-08-18 | Parker Hannifin Corporation | Valve with anti-cavitation features |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3282168A (en) * | 1963-09-05 | 1966-11-01 | Sanders Associates Inc | Hydraulic servo control systems |
-
1972
- 1972-04-29 DE DE19722221238 patent/DE2221238C2/en not_active Expired
-
1973
- 1973-04-25 GB GB1960473A patent/GB1428548A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2221238C2 (en) | 1981-11-19 |
DE2221238A1 (en) | 1973-11-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |