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GB1320335A - Pneumatic cylinder assemblies - Google Patents

Pneumatic cylinder assemblies

Info

Publication number
GB1320335A
GB1320335A GB5749269A GB1320335DA GB1320335A GB 1320335 A GB1320335 A GB 1320335A GB 5749269 A GB5749269 A GB 5749269A GB 1320335D A GB1320335D A GB 1320335DA GB 1320335 A GB1320335 A GB 1320335A
Authority
GB
United Kingdom
Prior art keywords
piston
valve
pneumatic
cylinder
passage
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
GB5749269A
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.)
Weyman H W
Original Assignee
Weyman H W
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 Weyman H W filed Critical Weyman H W
Publication of GB1320335A publication Critical patent/GB1320335A/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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1466—Hollow piston sliding over a stationary rod inside the cylinder
    • 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
    • F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant 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
    • F15B2211/405—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
    • F15B2211/41—Flow control characterised by the positions of the valve element
    • F15B2211/411—Flow control characterised by the positions of the valve element the positions being discrete
    • 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
    • F15B2211/428—Flow 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
    • F15B2211/80—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-Pressure Circuits (AREA)
  • Actuator (AREA)
  • Reciprocating Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Hydraulic Motors (AREA)

Abstract

1320335 Pneumatic actuators H W WEYMAN 25 Sept 1970 [25 Nov 1969] 57492/69 Heading F1D An hydraulically damped pneumatic cylinder assembly comprises a pneumatically operated piston 12 and rod 15 slidable in a cylinder 11, the hollow rod 15 forming the cylinder 31 of an hydraulic damping assembly. The chambers' on either side of piston 33 communicate with a valve assembly 51 through respective passages 47, 48 in a hydraulic piston rod 32 fixed to the pneumatic assembly and plate 19. Passage 47 leads through passages 56 to a variable restrictor valve 53 and a by-pass valve 54. Thus, if cylinder 31 moves to the left with pneumatic piston 12, then fluid is forced out of the right-hand hydraulic chamber through passage 47. If valve 54 is closed then fluid flows through the restrictor valve 53 to an annular chamber 59 communicating with passage 48 and the left hand hydraulic chamber. The amount of restriction of valve 53 determines the speed of pneumatic piston 12. If valve 54 is opened then flow will be quicker and piston 12 will move faster. A spring-loaded piston 63 takes up variations in volume of hydraulic fluid due to flow between the chambers.
GB5749269A 1969-11-25 1969-11-25 Pneumatic cylinder assemblies Expired GB1320335A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5749269 1969-11-25

Publications (1)

Publication Number Publication Date
GB1320335A true GB1320335A (en) 1973-06-13

Family

ID=10479310

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5749269A Expired GB1320335A (en) 1969-11-25 1969-11-25 Pneumatic cylinder assemblies

Country Status (10)

Country Link
US (1) US3678805A (en)
BE (1) BE758207A (en)
CH (1) CH513338A (en)
DE (1) DE2053819A1 (en)
ES (1) ES192873Y (en)
FR (1) FR2082971A5 (en)
GB (1) GB1320335A (en)
NL (1) NL7016696A (en)
SE (1) SE363664B (en)
ZA (1) ZA706924B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276813A (en) 1978-06-14 1981-07-07 Weyman Henry W Pneumatic cylinder assemblies
EP0057301A1 (en) * 1981-01-27 1982-08-11 Henry Walter Weyman Pneumatic cylinder assemblies
GB2178109A (en) * 1985-07-25 1987-02-04 David William Arnold Actuator
GB2282414A (en) * 1993-08-25 1995-04-05 Blatchford & Sons Ltd Artificial limb component
CN111425484A (en) * 2020-04-17 2020-07-17 河海大学常州校区 Oil cylinder tail end buffering device
CN111425483A (en) * 2020-04-17 2020-07-17 河海大学常州校区 A cylinder end buffer device
CN117967635A (en) * 2024-02-27 2024-05-03 郑州航空港区速达工业机械服务有限公司 Special supporting upright post for hydraulic support and application method

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE791188A (en) * 1971-11-11 1973-03-01 Mclelland John D APPARATUS FOR MOVING AN ORGAN AT CONTROLLED SPEEDS
US3841607A (en) * 1972-07-25 1974-10-15 Vetco Offshore Ind Inc Hydraulic motion compensating apparatus
USRE29564E (en) * 1972-07-25 1978-03-07 Vetco Offshore Industries, Inc. Hydraulic motion compensating apparatus
US3830139A (en) * 1972-07-31 1974-08-20 Pml Precision Mechanisms Ltd Pneumatic actuator
US3929057A (en) * 1973-04-14 1975-12-30 Kondo Mfg Hydraulic brake mechanism for an air cylinder
AT383871B (en) * 1985-11-13 1987-09-10 Enfo Grundlagen Forschungs Ag SIMPLE WORKING CYLINDER
JPS62258207A (en) * 1986-04-30 1987-11-10 Sumio Sugawara Combined hydraulic cylinder device
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
DE4011050A1 (en) * 1990-04-05 1991-10-10 Knorr Bremse Ag AIR PRESSURE ACTUATING CYLINDER
JPH05340407A (en) * 1992-06-04 1993-12-21 Etsuo Ando Hydraulic cylinder
SE500692C2 (en) * 1992-12-11 1994-08-08 Pos Line Ab Pneumatic piston cylinder unit with hydraulic steering
DE19959799A1 (en) * 1999-12-11 2001-06-13 Dautel Gmbh Piston cylinder device for operating hydraulically or pneumatically as a system controls a lifting motion between a piston and cylinder in a piston cylinder unit for moving and tipping components
US6481335B2 (en) * 1999-12-23 2002-11-19 Mark Y. Shteynberg Hybrid actuator
US6526865B2 (en) 2001-04-25 2003-03-04 Smc Corporation Of America Weld cylinder
US20040103780A1 (en) * 2002-12-02 2004-06-03 Shteynberg Mark Y. Hydropneumatic hybrid cylinder with tandem pistons and dampening hydraulic chambers disposed between them
CA2507149A1 (en) * 2005-05-12 2006-11-12 P & M Design & Consulting Ltd. Pneumatic cylinder
US20070068754A1 (en) * 2005-09-26 2007-03-29 Furgala George W Gas-biased hydraulic cylinder
SE538615C2 (en) * 2014-06-09 2016-10-04 Thordab Ind Innovation Ab Hydraulic cylinder

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2081921A (en) * 1934-08-22 1937-06-01 Sullivan Machinery Co Rock drill feeding mechanism
US2624318A (en) * 1946-06-24 1953-01-06 Rheem Mfg Co Pneumatic servomotor
US2664859A (en) * 1950-09-11 1954-01-05 Timken Roller Bearing Co Hydraulically controlled fluid driven reciprocating actuator
US3146680A (en) * 1961-02-13 1964-09-01 K & H Equipment Ltd Hydraulically controlled air cylinder
US3149541A (en) * 1963-07-12 1964-09-22 K & H Equipment Ltd Hydraulically controlled air leg structure
US3313214A (en) * 1964-06-16 1967-04-11 Sandex Inc Power feed with liquid check

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276813A (en) 1978-06-14 1981-07-07 Weyman Henry W Pneumatic cylinder assemblies
EP0057301A1 (en) * 1981-01-27 1982-08-11 Henry Walter Weyman Pneumatic cylinder assemblies
GB2178109A (en) * 1985-07-25 1987-02-04 David William Arnold Actuator
GB2282414A (en) * 1993-08-25 1995-04-05 Blatchford & Sons Ltd Artificial limb component
CN111425484A (en) * 2020-04-17 2020-07-17 河海大学常州校区 Oil cylinder tail end buffering device
CN111425483A (en) * 2020-04-17 2020-07-17 河海大学常州校区 A cylinder end buffer device
CN117967635A (en) * 2024-02-27 2024-05-03 郑州航空港区速达工业机械服务有限公司 Special supporting upright post for hydraulic support and application method

Also Published As

Publication number Publication date
ES192873U (en) 1974-11-01
NL7016696A (en) 1971-05-27
DE2053819A1 (en) 1971-07-08
SE363664B (en) 1974-01-28
ES192873Y (en) 1975-02-16
CH513338A (en) 1971-09-30
US3678805A (en) 1972-07-25
FR2082971A5 (en) 1971-12-10
BE758207A (en) 1971-04-01
ZA706924B (en) 1971-10-27

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414A Case decided by the comptroller ** specification amended (sect. 14/1949)
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee