GB324509A - Improvements in automatic control of steam valves - Google Patents

Improvements in automatic control of steam valves

Info

Publication number
GB324509A
GB324509A GB140229A GB140229A GB324509A GB 324509 A GB324509 A GB 324509A GB 140229 A GB140229 A GB 140229A GB 140229 A GB140229 A GB 140229A GB 324509 A GB324509 A GB 324509A
Authority
GB
United Kingdom
Prior art keywords
valve
pressure
valves
actuated
controlled
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
GB140229A
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.)
BERNARD THEODORE WINGFIELD
Original Assignee
BERNARD THEODORE WINGFIELD
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 BERNARD THEODORE WINGFIELD filed Critical BERNARD THEODORE WINGFIELD
Priority to GB140229A priority Critical patent/GB324509A/en
Publication of GB324509A publication Critical patent/GB324509A/en
Expired legal-status Critical Current

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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

324,509. Wingfield, B. T. Jan. 15, 1929. Valves controlled by pilot or relay valves. -An automatic high-pressure surplus and low-pressure limiting valve is actuated by fluid pressure under the control of a relav valve itself controlled by three control valves so that the main valve is opened when the high pressure exceeds a certain maximum, if the low pressure is below a certain maximum and is also opened if the low pressure falls below a predetermined minimum. The balanced main valve 1 is actuated, through a cord 3 and lever 2, by a piston 5 working in a cylinder 6 connected by pipes 7, 8 to a relay valve 9. The relay valve comprises a piston valve member 11 actuated against the action of a spring by two diaphragms 13. 14, the diaphragm 13 being secured to the valve spindle 12, while the diaphragm 14 bears against an extension 12<1> of the valve spindle. The relay valve is controlled by three control valves of the type described in Specification 291,923, each provided with a restricted fluid inlet and a leak-off port controlled by a valve member actuated by an elastic capsule, the capsules of the valves 15 and 18 being connected to the low-pressure side of the main valve while that of the valve 17 is coupled to the highpressure side. The valve 15 is connected to the space between the diaphragms and opens with fall of pressure. The valves 17, 18 are connected to the space above the diaphragm 14, and while the valve 18 opens with fall of pressure, 17 closes with fall of pressure.
GB140229A 1929-01-15 1929-01-15 Improvements in automatic control of steam valves Expired GB324509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB140229A GB324509A (en) 1929-01-15 1929-01-15 Improvements in automatic control of steam valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB140229A GB324509A (en) 1929-01-15 1929-01-15 Improvements in automatic control of steam valves

Publications (1)

Publication Number Publication Date
GB324509A true GB324509A (en) 1930-01-30

Family

ID=9721373

Family Applications (1)

Application Number Title Priority Date Filing Date
GB140229A Expired GB324509A (en) 1929-01-15 1929-01-15 Improvements in automatic control of steam valves

Country Status (1)

Country Link
GB (1) GB324509A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1090043B (en) * 1956-06-21 1960-09-29 Duesterloh Fabrik Fuer Bergwer Device for shutting down a pressure medium motor controlled by a control slide from a remote point
DE1115041B (en) * 1959-04-22 1961-10-12 Walter Hartung Dipl Ing Fluid valve controlled by pressure medium for automatic flow limitation devices
DE1224615B (en) * 1960-03-08 1966-09-08 Atlas Copco Ab Pressure medium control device for remote control of several actuation devices

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1090043B (en) * 1956-06-21 1960-09-29 Duesterloh Fabrik Fuer Bergwer Device for shutting down a pressure medium motor controlled by a control slide from a remote point
DE1115041B (en) * 1959-04-22 1961-10-12 Walter Hartung Dipl Ing Fluid valve controlled by pressure medium for automatic flow limitation devices
DE1224615B (en) * 1960-03-08 1966-09-08 Atlas Copco Ab Pressure medium control device for remote control of several actuation devices

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