GB1277641A - Hydraulic flow amplifier - Google Patents
Hydraulic flow amplifierInfo
- Publication number
- GB1277641A GB1277641A GB3083669A GB3083669A GB1277641A GB 1277641 A GB1277641 A GB 1277641A GB 3083669 A GB3083669 A GB 3083669A GB 3083669 A GB3083669 A GB 3083669A GB 1277641 A GB1277641 A GB 1277641A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- control
- load
- fluid
- gap
- 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
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Fluid Pressure (AREA)
- Servomotors (AREA)
- Temperature-Responsive Valves (AREA)
- Safety Valves (AREA)
Abstract
1277641 Fluid-pressure servomotor systems I J CYPHELLY 18 June 1969 [27 June 1968; 30 Oct 1968] 30836/69 Heading G3P A fluid-pressure amplifier comprises a throttling disc 4, Fig.1, movable in response to adjustment of a valve means 10, 11 in a housing 9 to vary simultaneously the width of a gap 6 through which fluid is supplied from inlets 3 to an outlet port 13, Fig.2, and the width of a control gap 5 through which fluid from the inlets flows to the valve means. The hydraulic resistance of the gap 5 is greater than that of the gap 6 which has a labyrinthine seat 8 and the control to load flow ratio may be 100:1. In Fig.6, the load pressure area 8 is separated from the control pressure area 7 by a bellows 16 and a wall forming the control throttling seat 19 is located radially within an annular load throttling seat 14. In a modification, the control throttling seat consists of an adjustable screw so that a control member, such as a flapper valve, can completely close the load circuit. In Fig. 8, the lower face of the disc is divided by bellows 23 and 24 into an inlet pressure area 3 and an area 25 that is kept pressure free by a vent 21. Load pressure in the space 26 is led by a passage 27 to a compensating space 28 between bellows 16 and 22 so that the position of the disc is independent of load pressure. Since the feed pressure of line 1 is divided only as a function of the control pressure at 17 the arrangement may be used as a low output impedance pressure divider. In a modification, a single control pressure regulates a number of load pressures. Amplifiers similar to those of Figs.6 and 8 may be connected in series and be controlled by an electrically heated resistance wire (29), Fig.10 which varies the viscosity and hence the flow rate of fluid in a control bore.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH961668A CH492886A (en) | 1968-06-27 | 1968-06-27 | Hydrostatic current booster |
CH1619468A CH501844A (en) | 1968-06-27 | 1968-10-30 | Hydrostatic current booster |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1277641A true GB1277641A (en) | 1972-06-14 |
Family
ID=25705056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3083669A Expired GB1277641A (en) | 1968-06-27 | 1969-06-18 | Hydraulic flow amplifier |
Country Status (6)
Country | Link |
---|---|
US (1) | US3842855A (en) |
CH (1) | CH501844A (en) |
DE (1) | DE1927883C3 (en) |
FR (1) | FR2016777B1 (en) |
GB (1) | GB1277641A (en) |
SE (1) | SE353136B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3343620C2 (en) * | 1983-12-02 | 1986-09-04 | Glyco-Antriebstechnik Gmbh, 6200 Wiesbaden | Controllable 2-way valve for pressure and flow control of a liquid flow |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1346233A (en) * | 1962-02-07 | 1963-12-13 | Siemens Ag | pneumatic control element |
FR1377079A (en) * | 1962-12-13 | 1964-10-31 | Siemens Ag | Pneumatic or hydraulic switch or amplifier |
FR1442588A (en) * | 1965-05-18 | 1966-06-17 | Honeywell Inc | Fluid amplifiers |
-
1968
- 1968-10-30 CH CH1619468A patent/CH501844A/en not_active IP Right Cessation
-
1969
- 1969-05-28 US US82847669 patent/US3842855A/en not_active Expired - Lifetime
- 1969-05-31 DE DE1927883A patent/DE1927883C3/en not_active Expired
- 1969-06-18 GB GB3083669A patent/GB1277641A/en not_active Expired
- 1969-06-25 SE SE904869A patent/SE353136B/xx unknown
- 1969-06-27 FR FR6921758A patent/FR2016777B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1927883C3 (en) | 1975-07-10 |
FR2016777B1 (en) | 1973-10-19 |
US3842855A (en) | 1974-10-22 |
DE1927883B2 (en) | 1972-06-29 |
DE1927883A1 (en) | 1970-01-15 |
CH501844A (en) | 1971-01-15 |
FR2016777A1 (en) | 1970-05-15 |
SE353136B (en) | 1973-01-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4572234A (en) | Hydraulic flow control valve | |
GB1010502A (en) | Adjustable, metered, directional flow control arrangement | |
GB1068447A (en) | Fluid pressure regulator | |
GB1136967A (en) | Improvements in safety valves | |
GB1371898A (en) | Control means for fluid flow valves | |
GB1190356A (en) | Fluid Actuated Valve Assembly | |
GB1422431A (en) | Flow and pressure regulating control valve for hydraulic motors | |
GB1140221A (en) | Improvements in or relating to fluid flow control | |
GB1142678A (en) | Pressure regulator | |
US3563272A (en) | Servocontrol valve and system | |
GB1371899A (en) | Fluid flow valves | |
GB1277641A (en) | Hydraulic flow amplifier | |
NL6611092A (en) | ||
GB1304620A (en) | ||
GB1473049A (en) | Pressure regulator for flowing media | |
GB1408394A (en) | Gas supply apparatus | |
GB1140584A (en) | Fluid-pressure servomechanism | |
GB1097577A (en) | Improvements in tractor hydraulic control systems | |
GB1142457A (en) | Improvements in or relating to fluid pressure controllers | |
GB1220125A (en) | Pressure regulating valves and hydraulic systems employing such valves | |
GB967141A (en) | Pressure relief valve | |
GB1046113A (en) | Improvements in automatic fluid flow control valves and systems | |
GB1406090A (en) | Flow control means for hydraulic systems | |
GB1277148A (en) | Pneumatic differential pressure amplifier | |
GB1058453A (en) | Constant flow rate orifice devices |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |