GB1242128A - Pressure-operated piston device - Google Patents

Pressure-operated piston device

Info

Publication number
GB1242128A
GB1242128A GB5600568A GB5600568A GB1242128A GB 1242128 A GB1242128 A GB 1242128A GB 5600568 A GB5600568 A GB 5600568A GB 5600568 A GB5600568 A GB 5600568A GB 1242128 A GB1242128 A GB 1242128A
Authority
GB
United Kingdom
Prior art keywords
valve
cylinder
piston
oil
stroke
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
GB5600568A
Inventor
Ronald Alec Sidney
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.)
GEORGE ENGINEERING Co Ltd
Original Assignee
GEORGE ENGINEERING Co 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 GEORGE ENGINEERING Co Ltd filed Critical GEORGE ENGINEERING Co Ltd
Priority to GB5600568A priority Critical patent/GB1242128A/en
Publication of GB1242128A publication Critical patent/GB1242128A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/26—Fluid-pressure drives
    • B23Q5/266—Fluid-pressure drives with means to control the feed rate by controlling the fluid flow
    • B23Q5/268—Fluid-pressure drives with means to control the feed rate by controlling the fluid flow depending upon the position of the tool or work
    • 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
    • F15B2211/30505—Non-return valves, i.e. check valves
    • F15B2211/30515—Load holding valves
    • 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
    • F15B2211/40—Flow control
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/421—Flow control characterised by the type of actuation mechanically
    • F15B2211/424—Flow control characterised by the type of actuation mechanically actuated by an output member of the circuit
    • 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
    • F15B2211/455—Control of flow in the feed line, i.e. meter-in 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
    • F15B2211/40—Flow control
    • F15B2211/46—Control of flow in the return line, i.e. meter-out 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
    • F15B2211/70—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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/72—Output members, e.g. hydraulic motors or cylinders or control therefor having locking 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/75—Control of speed of the 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
    • F15B2211/80—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)
  • Actuator (AREA)

Abstract

1,242,128. Fluid operated actuator. GEORGE ENG. CO. Ltd. Nov.25, 1969 [Nov.26, 1968], No.56005/68. Heading F1P. A fluid operated actuator comprises a piston 14 slidable in an inner cylinder 12, an annular piston 13 slidable in the space between the inner cylinder 12 and an outer cylinder 11, a valve 9 controlling the supply of air to one or other of cylinder spaces 17, 19, and a valve 29 controlling the transfer of oil between cylinder spaces 16, 18 and thus the speed of the piston 14 and its output rod 15. During an extension stroke, oil leaving the cylinder space 18 flows through passages 27, 28, the open valve 29, a remotely operable locking valve 42 and then through a passage 45 into the cylinder space 16. A cam rod 39 attached to the piston rod 15 is arranged to close the valve 39 part way through the stroke. Closure of the valve 39 causes the oil transfer to take place through a restrictor 47 whereby the speed is reduced. The return stroke is performed at high speed since the valve 29 has a valve member 30 pushed back by the return oil flow.
GB5600568A 1968-11-26 1968-11-26 Pressure-operated piston device Expired GB1242128A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5600568A GB1242128A (en) 1968-11-26 1968-11-26 Pressure-operated piston device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5600568A GB1242128A (en) 1968-11-26 1968-11-26 Pressure-operated piston device

Publications (1)

Publication Number Publication Date
GB1242128A true GB1242128A (en) 1971-08-11

Family

ID=10475484

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5600568A Expired GB1242128A (en) 1968-11-26 1968-11-26 Pressure-operated piston device

Country Status (1)

Country Link
GB (1) GB1242128A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152586A (en) * 1984-01-14 1985-08-07 Davy Mckee Piston cylinder assembly with cushioned piston movement
EP0350190A2 (en) * 1988-06-29 1990-01-10 CLARKE, Douglas Cecil Pneumatic cylinder
EP0399102A1 (en) * 1989-05-15 1990-11-28 Ishigame Machinery Co., Ltd. Hydraulic-pneumatic cylinder device
DE102011121777A1 (en) * 2011-12-21 2013-06-27 Ewo Fluid Power Gmbh Double-acting hydraulic cylinder for use as vibration damper in active hydropneumatic suspension system in motor car, has connecting lines arranged within cylinder and connecting pressure chambers with storage chambers of accumulators

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152586A (en) * 1984-01-14 1985-08-07 Davy Mckee Piston cylinder assembly with cushioned piston movement
EP0350190A2 (en) * 1988-06-29 1990-01-10 CLARKE, Douglas Cecil Pneumatic cylinder
GB2221956A (en) * 1988-06-29 1990-02-21 Clarke Douglas C Pneumatic cylinder
EP0350190A3 (en) * 1988-06-29 1990-11-14 CLARKE, Douglas Cecil Pneumatic cylinder
US5009068A (en) * 1988-06-29 1991-04-23 Clarke Douglas C Pneumatic cylinder with positioning, braking, and feed rate control
GB2221956B (en) * 1988-06-29 1992-06-17 Clarke Douglas C Pneumatic cylinder
EP0399102A1 (en) * 1989-05-15 1990-11-28 Ishigame Machinery Co., Ltd. Hydraulic-pneumatic cylinder device
US5042253A (en) * 1989-05-15 1991-08-27 Ishigame Machinery Co., Ltd. Hydraulic-pneumatic cylinder device with annular flexible bag as interface
DE102011121777A1 (en) * 2011-12-21 2013-06-27 Ewo Fluid Power Gmbh Double-acting hydraulic cylinder for use as vibration damper in active hydropneumatic suspension system in motor car, has connecting lines arranged within cylinder and connecting pressure chambers with storage chambers of accumulators
DE102011121777B4 (en) * 2011-12-21 2018-11-08 Ewo Fluid Power Gmbh Double-acting hydraulic cylinder with integrated piston accumulators

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