GB1277641A - Hydraulic flow amplifier - Google Patents

Hydraulic flow amplifier

Info

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
Application number
GB3083669A
Inventor
Ivan Jaroslav Cyphelly
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.)
Individual
Original Assignee
Individual
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
Priority claimed from CH961668A external-priority patent/CH492886A/en
Application filed by Individual filed Critical Individual
Publication of GB1277641A publication Critical patent/GB1277641A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/2278Pressure modulating relays or followers
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/2278Pressure modulating relays or followers
    • Y10T137/2409With 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.
GB3083669A 1968-06-27 1969-06-18 Hydraulic flow amplifier Expired GB1277641A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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

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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