GB1185324A - Hydraulic Control Systems. - Google Patents

Hydraulic Control Systems.

Info

Publication number
GB1185324A
GB1185324A GB4084466A GB4084466A GB1185324A GB 1185324 A GB1185324 A GB 1185324A GB 4084466 A GB4084466 A GB 4084466A GB 4084466 A GB4084466 A GB 4084466A GB 1185324 A GB1185324 A GB 1185324A
Authority
GB
United Kingdom
Prior art keywords
regulators
spool
pressure
supply
control
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
GB4084466A
Inventor
Francis Benjamin Levetus
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.)
Keelavite Hydraulics Ltd
Original Assignee
Keelavite Hydraulics Ltd
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 Keelavite Hydraulics Ltd filed Critical Keelavite Hydraulics Ltd
Priority to GB4084466A priority Critical patent/GB1185324A/en
Priority to FR111632A priority patent/FR1536296A/en
Priority to NL6708820A priority patent/NL6708820A/xx
Priority to DE1967K0062628 priority patent/DE1600837A1/en
Publication of GB1185324A publication Critical patent/GB1185324A/en
Expired legal-status Critical Current

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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • F15B11/10—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor in which the servomotor position is a function of the pressure also pressure regulators as operating means for such systems, the device itself may be a position indicating system
    • 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
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/16—Systems essentially having two or more interacting servomotors, e.g. multi-stage

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Fluid Pressure (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1,185,324. Fluid-pressure servomotor systems. KEELAVITE HYDRAULICS Ltd. June 23, 1967 [June 24, 1966; Sept.13, 1966], Nos.28420/66 and 40844/66. Heading G3P. In a remote control system, a pilot spool 5 responds to a control signal in chamber 13 from remote pressure regulator 19 and controls the supply to piston 2 the movement of which is fed back to the spool via cam 18, and pressure regulator 16 which supplies a feedback pressure to chamber 12. A number of such systems are provided with the regulators 19 thereof being located at a common control station. The various pilot valves and regulators are supplied from and exhausted to a ring main 9A, 10A. If the supply or control pressures fall below a predetermined value, serially connected diaphragm switches 50, 51, Fig. 5 (not shown) open to de-energize solenoids 48 to close valves 47 to lock the piston 2. Indicators 20 show the positions of pistons 2 and the controlled valves 1 and further indicators (not shown) show the feedback pressures. Each regulator 16, Fig.3 has inlet, outlet and exhaust chambers 31, 33, 32 and includes spool 23 responsive to outlet pressure at 24. The regulators 19 are identical except that a control screw replaces the input from cam 18. The regulators 19 have their own common supply and exhaust ring main. Faces 14, 15 of spool 5 can be of different area.
GB4084466A 1966-06-24 1966-06-24 Hydraulic Control Systems. Expired GB1185324A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB4084466A GB1185324A (en) 1966-06-24 1966-06-24 Hydraulic Control Systems.
FR111632A FR1536296A (en) 1966-06-24 1967-06-23 Hydraulic control systems
NL6708820A NL6708820A (en) 1966-06-24 1967-06-23
DE1967K0062628 DE1600837A1 (en) 1966-06-24 1967-06-23 Control system for several hydraulically operated organs

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4084466A GB1185324A (en) 1966-06-24 1966-06-24 Hydraulic Control Systems.
GB2842066 1966-06-24

Publications (1)

Publication Number Publication Date
GB1185324A true GB1185324A (en) 1970-03-25

Family

ID=26259363

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4084466A Expired GB1185324A (en) 1966-06-24 1966-06-24 Hydraulic Control Systems.

Country Status (3)

Country Link
DE (1) DE1600837A1 (en)
GB (1) GB1185324A (en)
NL (1) NL6708820A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4953445A (en) * 1988-03-25 1990-09-04 Bendix France Control device with failure detection centering for a double-acting hydraulic jack
EP2440792A2 (en) * 2009-06-12 2012-04-18 G.W. Lisk Company, Inc. Proportional position feedback hydraulic servo system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4953445A (en) * 1988-03-25 1990-09-04 Bendix France Control device with failure detection centering for a double-acting hydraulic jack
EP2440792A2 (en) * 2009-06-12 2012-04-18 G.W. Lisk Company, Inc. Proportional position feedback hydraulic servo system
EP2440792A4 (en) * 2009-06-12 2014-03-12 Lisk Co G W Proportional position feedback hydraulic servo system

Also Published As

Publication number Publication date
NL6708820A (en) 1967-12-27
DE1600837A1 (en) 1970-04-23

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees