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GB168313A - Improvements in means for maintaining pressure differences - Google Patents

Improvements in means for maintaining pressure differences

Info

Publication number
GB168313A
GB168313A GB22015/21A GB2201521A GB168313A GB 168313 A GB168313 A GB 168313A GB 22015/21 A GB22015/21 A GB 22015/21A GB 2201521 A GB2201521 A GB 2201521A GB 168313 A GB168313 A GB 168313A
Authority
GB
United Kingdom
Prior art keywords
balance
fluid
spindles
conduit
ports
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
GB22015/21A
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
Application filed by Individual filed Critical Individual
Publication of GB168313A publication Critical patent/GB168313A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/028—Controlling a pressure difference

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

168,313. Scheib, G., Koch, M., and G³ntherberg, H. Aug. 27, 1920, [Convention date]. Fluid-actuated valves.--A valve device for maintaining a constant difference of pressure between two conduits comprises a spring- loaded tubular piston valve adapted to discharge fluid from the conduit in which the pressure is above normal into the other conduit. The piston valve 11 has ports 15, 16, 17 and is provided with balance pistons 12, 13 of the same or different diameters adapted to work in liners 20, 21, and is loaded by springs 29, 30 arranged between the ends of the casing and abutments 27, 28 adjustably mounted on spindles 22, 23 secured to the balance pistons. Normally, fluid entering at 2 and :3 passes around the valve member to outlets 4, 5, but in the event of the balance being disturbed fluid is bye-passed through ports 16 and 15 or 17 to restore the balance. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification in which the movement of the spindles 22, 23 may be used to control the pumps feeding the conduits. This subject-matter does not appear in the Specification as accepted.
GB22015/21A 1920-08-27 1921-08-19 Improvements in means for maintaining pressure differences Expired GB168313A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE168313X 1920-08-27

Publications (1)

Publication Number Publication Date
GB168313A true GB168313A (en) 1922-03-30

Family

ID=5687144

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22015/21A Expired GB168313A (en) 1920-08-27 1921-08-19 Improvements in means for maintaining pressure differences

Country Status (1)

Country Link
GB (1) GB168313A (en)

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