GB751031A - Improvements in or relating to a system for controlling a fluid actuated device - Google Patents
Improvements in or relating to a system for controlling a fluid actuated deviceInfo
- Publication number
- GB751031A GB751031A GB6961/54A GB696154A GB751031A GB 751031 A GB751031 A GB 751031A GB 6961/54 A GB6961/54 A GB 6961/54A GB 696154 A GB696154 A GB 696154A GB 751031 A GB751031 A GB 751031A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pilot
- valve
- safety valve
- valves
- main
- 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
- 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
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B13/0405—Valve members; Fluid interconnections therefor for seat valves, i.e. poppet valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/28—Valves specially adapted therefor
- B60T11/32—Automatic cut-off valves for defective pipes
-
- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/26—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in either direction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Multiple-Way Valves (AREA)
Abstract
751.031. Operating clutches. ROSS OPERATING VALVE CO. March 10, 1954 [March 17 1953; June 18, 1953], No. 6961/54. Class 80(2) [Also in Group XXIX] In a system in which a fluid-pressure motor 12. Fig. 1, is controlled by duplicated main and pilot valves 13, 19 and 13<SP>1</SP>, 19<SP>1</SP>, sensing connections 25, 25<SP>1</SP> are made from parallel conduits 16. 16<SP>1</SP> feeding the motor to opposed pressure responsive elements in a safety valve 21 whereby failure of one of the main or pilot valves, resulting in differing pressures in the conduits 16, 16<SP>1</SP>, causes the safety valve to cut off the pressure fluid supply conduit 11 from a conduit 23 which feeds the pilot valves thereby preventing further operation of the main valves despite continued cyclic operation of the pilot valve, by, e.g. a solenoid. In a modification, the safety valve controls the supply to the main valves or to both the pilot and main valves. The safety valve may also have an outlet 27 for exhausting the conduit leading to the pilot and/or main valves when the supuly is cut off. Alternatively. the safety valve could be arranged to exhaust the supply conduit leading to the pilot and/or main valves instead of cutting it off. The invention may also be applied to a double-acting motor controlled by two pairs of pilot and main valves with a safety valve for each pair or a single safety valve for both pairs. Each main valve comprises an inlet chamber 47, Fig. 3, an exhaust chamber 53, a chamber 49 communicating with the motor, and closure members 58, 59 actuated by a piston 55 having a connection 86 with the pilot valve which consists of a spring- urged ball 79 normally closing a port 89 to isolate the connection 86 from the supply 77. A plunger 81 with a vent passage 91 is operated by a solenoid 68 to raise the ball from its seat. Instead of the three-way main valve shown, two-way or four-way valves may be employed. The sensing connection to the safety valve comprises passages 64, 65, 67. Alternatively, the sensing connection may open to a point adjacent the inlet valve member 59 either in the inlet chamber or in the chamber 49, it may open into the exhaust chamber near the exhaust valve member 58, or it may communicate with the pilot valve. In one form the safety valve has inlet and outlet ports 22, 23, Fig. 5, which are interconnected when a spring-centred plunger 97 is in its normal position but which are cut off from one another by a land 103 or 103' when the plunger is moved in either direction by differing sensing pressures admitted by ports 96, 96'. A spring-pressed detent 105 locks the plunger in its operated position and requires to be manually withdrawn. An additional port may be controlled by the plunger to connect the port 23 to exhaust. An alternative form of safety valve has closure members 126, 126<SP>1</SP>, Fig. 6, carried by diaphragms 111, 111' which are rigidly interconnected by an element 117 and loaded by springs 127, 127'. The controlled passage 123, 121, 124 is closed when either closure member engages its seat 125, or 125' in response to differing sensing pressures in chambers 112, 112'. Manually releasable detents 128. 128' lock the movable assembly in either of its closed positions.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US751031XA | 1953-03-17 | 1953-03-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB751031A true GB751031A (en) | 1956-06-27 |
Family
ID=22123556
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6961/54A Expired GB751031A (en) | 1953-03-17 | 1954-03-10 | Improvements in or relating to a system for controlling a fluid actuated device |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB751031A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1168256B (en) * | 1961-03-13 | 1964-04-16 | Erich Herion | Servo control with securing means for at least one pressure consumer, in particular press control |
DE1256072B (en) * | 1958-11-27 | 1967-12-07 | Erich Herion | Safety control for a pressure medium circuit |
EP1508735A1 (en) * | 2003-08-21 | 2005-02-23 | A. und K. Müller GmbH & Co. KG | Valve arrangement for fluids |
CN114270085A (en) * | 2019-07-19 | 2022-04-01 | 艾默生自动化解决方案终控美国公司 | Quick dome loaded pilot valve bypass |
-
1954
- 1954-03-10 GB GB6961/54A patent/GB751031A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1256072B (en) * | 1958-11-27 | 1967-12-07 | Erich Herion | Safety control for a pressure medium circuit |
DE1168256B (en) * | 1961-03-13 | 1964-04-16 | Erich Herion | Servo control with securing means for at least one pressure consumer, in particular press control |
EP1508735A1 (en) * | 2003-08-21 | 2005-02-23 | A. und K. Müller GmbH & Co. KG | Valve arrangement for fluids |
CN114270085A (en) * | 2019-07-19 | 2022-04-01 | 艾默生自动化解决方案终控美国公司 | Quick dome loaded pilot valve bypass |
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