GB725999A - Improvements in or relating to controlling double-acting, pressure-responsive devices - Google Patents

Improvements in or relating to controlling double-acting, pressure-responsive devices

Info

Publication number
GB725999A
GB725999A GB1026253A GB1026253A GB725999A GB 725999 A GB725999 A GB 725999A GB 1026253 A GB1026253 A GB 1026253A GB 1026253 A GB1026253 A GB 1026253A GB 725999 A GB725999 A GB 725999A
Authority
GB
United Kingdom
Prior art keywords
duct
piston
valve
pressure
chamber
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
GB1026253A
Inventor
Hans Feser Holm
Nils Ferdinand Hoppe
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.)
SMALLPEICE Ltd
Original Assignee
SMALLPEICE 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 SMALLPEICE Ltd filed Critical SMALLPEICE Ltd
Priority to GB1026253A priority Critical patent/GB725999A/en
Publication of GB725999A publication Critical patent/GB725999A/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
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/329—Directional control characterised by the type of actuation actuated by fluid pressure
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/355—Pilot pressure control
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
    • F15B2211/6355—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements having valve means
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/67—Methods for controlling pilot pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

725,999. Pneumatic single-stroke apparatus. SMALLPEICE, Ltd. April 15, 1953. No. 10262/53. Class 8 (2). A piston valve A for controlling the supply of pneumatic pressure from a duct 7 through one or other of ducts 8, 9 to the ends of a working cylinder 10 comprises connected pistons 3 ... 6 within a casing 1 having end chambers 20, 14 and moved to the right from the position shown on opening a normally closed three-way impulse valve 35 to allow compressed air from a duct 39 to flow through ducts 31, 30 within the piston 26 of a control valve B, and its rod 27, a chamber 36 and a duct 21 to the chamber 20 : when the end position of the pistons 3 ... 6 is reached, pressure in a duct 44 connecting the pressure duct 9 to a piston 42 within the casing 22 of the valve B displaces this piston and the piston 26 against which it abuts to its other extreme position to allow the chamber 20 to exhaust through the duct 21, a groove 28 of the piston rod 27 and a duct 40 open to atmosphere ; the return of pistons 3 ... 6 being effected irrespective of whether the valve 35 is open or closed on opening a three-way impulse valve 16 to allow compressed air from a duct 19 to gain access to the chamber 14 which was hitherto vented through the valve 16 to atmosphere. At the completion of the cycle i.e., when the pistons3 ... 6 and 11 are in their initial position shown, the valve 35 is assumed to be released whereupon the chamber to the right of the piston 26 is vented through the valve 35, and said piston 26 and rod 27 are returned by pressure from the duct 8 and a duct 41 connecting it to the left of the piston 26.
GB1026253A 1953-04-15 1953-04-15 Improvements in or relating to controlling double-acting, pressure-responsive devices Expired GB725999A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1026253A GB725999A (en) 1953-04-15 1953-04-15 Improvements in or relating to controlling double-acting, pressure-responsive devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1026253A GB725999A (en) 1953-04-15 1953-04-15 Improvements in or relating to controlling double-acting, pressure-responsive devices

Publications (1)

Publication Number Publication Date
GB725999A true GB725999A (en) 1955-03-16

Family

ID=9964620

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1026253A Expired GB725999A (en) 1953-04-15 1953-04-15 Improvements in or relating to controlling double-acting, pressure-responsive devices

Country Status (1)

Country Link
GB (1) GB725999A (en)

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