GB1068197A - Improvements in hydro-pneumatic actuating mechanism - Google Patents

Improvements in hydro-pneumatic actuating mechanism

Info

Publication number
GB1068197A
GB1068197A GB4194564A GB4194564A GB1068197A GB 1068197 A GB1068197 A GB 1068197A GB 4194564 A GB4194564 A GB 4194564A GB 4194564 A GB4194564 A GB 4194564A GB 1068197 A GB1068197 A GB 1068197A
Authority
GB
United Kingdom
Prior art keywords
piston
cylinder
liquid
seals
cavity
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
GB4194564A
Inventor
Alfred Edward Coleman
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.)
J K O CUTTERS Ltd
Original Assignee
J K O CUTTERS 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 J K O CUTTERS Ltd filed Critical J K O CUTTERS Ltd
Priority to GB4194564A priority Critical patent/GB1068197A/en
Publication of GB1068197A publication Critical patent/GB1068197A/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
    • F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
    • F15B11/072—Combined pneumatic-hydraulic systems
    • F15B11/076—Combined pneumatic-hydraulic systems with pneumatic drive or displacement and speed control or stopping by hydraulic braking
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/216—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being pneumatic-to-hydraulic converters
    • 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
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • 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
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41527—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a directional control valve
    • F15B2211/41536—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a directional control valve being connected to multiple ports of an output member
    • 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7055—Linear output members having more than two chambers
    • 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
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/86—Control during or prevention of abnormal conditions
    • F15B2211/863—Control during or prevention of abnormal conditions the abnormal condition being a hydraulic or pneumatic failure
    • 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
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/885—Control specific to the type of fluid, e.g. specific to magnetorheological fluid
    • F15B2211/8855—Compressible fluids, e.g. specific to pneumatics

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

1,068,197. Pneumatic single stroke apparatus. J. K. O. CUTTERS Ltd. Sept. 10, 1965 [Oct. 14, 1964], No.41945/64. Heading F1P. [Also in Division F2] The piston rod (7), Fig. 2 (not shown) of a compressed air actuated piston (6) slidable in a cylinder (2) passes through seals (11, 12) in a partition (9) into a liquid-filled dashpot cylinder (1) in which a second piston (5) secured to the rod (7) moves, whereby liquid is forced to flow from one side of the piston (5) to the other through a restriction (23) adjustable to control the speed of the pistons, and fluid from either cylinder which leaks past the seals (11) enters cavities (15, 16) formed in the partition (9) thus preventing contamination of one fluid by the other. Air which leaks past the lower seal (11) from the cylinder (2) is exhausted to atmosphere through the cavity (15) and a duct (18), whereas liquid which leaks past the upper seal (11) flows into the cavity (16) and a duct (19) connected by a pipe (25) to a reservoir. The pipe (25) is also connected to a cavity (17) formed in an end cap (10) having seals (13, 14) for the actuating end of the piston rod (7). The cap (10) has formed therein an orifice connected by a pipe to a pressure relief chamber for allowing expansion of the liquid. The chamber is defined by one end of a cylinder and by the movable face of a piston having a piston rod loaded externally by a spring.
GB4194564A 1964-10-14 1964-10-14 Improvements in hydro-pneumatic actuating mechanism Expired GB1068197A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4194564A GB1068197A (en) 1964-10-14 1964-10-14 Improvements in hydro-pneumatic actuating mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4194564A GB1068197A (en) 1964-10-14 1964-10-14 Improvements in hydro-pneumatic actuating mechanism

Publications (1)

Publication Number Publication Date
GB1068197A true GB1068197A (en) 1967-05-10

Family

ID=10422092

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4194564A Expired GB1068197A (en) 1964-10-14 1964-10-14 Improvements in hydro-pneumatic actuating mechanism

Country Status (1)

Country Link
GB (1) GB1068197A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5161449A (en) * 1989-12-22 1992-11-10 The United States Of America As Represented By The Secretary Of The Navy Pneumatic actuator with hydraulic control
GB2281355A (en) * 1993-08-17 1995-03-01 Minster Machine Co Oil leakage control
US5623870A (en) * 1993-08-17 1997-04-29 The Minster Machine Company Oil mist eliminator for a press oil control system
CN117345723A (en) * 2023-09-21 2024-01-05 太仓优尼泰克精密机械有限公司 Pneumatic actuator interaction structure and application method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5161449A (en) * 1989-12-22 1992-11-10 The United States Of America As Represented By The Secretary Of The Navy Pneumatic actuator with hydraulic control
GB2281355A (en) * 1993-08-17 1995-03-01 Minster Machine Co Oil leakage control
US5467705A (en) * 1993-08-17 1995-11-21 The Minster Machine Company Oil control system for a press
US5623870A (en) * 1993-08-17 1997-04-29 The Minster Machine Company Oil mist eliminator for a press oil control system
GB2281355B (en) * 1993-08-17 1997-07-23 Minster Machine Co Oil control system for a press
CN117345723A (en) * 2023-09-21 2024-01-05 太仓优尼泰克精密机械有限公司 Pneumatic actuator interaction structure and application method thereof
CN117345723B (en) * 2023-09-21 2024-03-29 太仓优尼泰克精密机械有限公司 Pneumatic actuator interaction structure and application method thereof

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