GB2004984A - Piston and cylinder restraints - Google Patents

Piston and cylinder restraints

Info

Publication number
GB2004984A
GB2004984A GB7837154A GB7837154A GB2004984A GB 2004984 A GB2004984 A GB 2004984A GB 7837154 A GB7837154 A GB 7837154A GB 7837154 A GB7837154 A GB 7837154A GB 2004984 A GB2004984 A GB 2004984A
Authority
GB
United Kingdom
Prior art keywords
piston
cylinder
flange
restraints
sleeve
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.)
Granted
Application number
GB7837154A
Other versions
GB2004984B (en
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB7837154A priority Critical patent/GB2004984B/en
Publication of GB2004984A publication Critical patent/GB2004984A/en
Application granted granted Critical
Publication of GB2004984B publication Critical patent/GB2004984B/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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • 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
    • F15B15/19—Pyrotechnical actuators

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Actuator (AREA)

Abstract

This invention provides a piston and cylinder arrangement for single shot operation e.g. jettisoning a load from an aircraft. A restraining flange (18) of a copper sleeve (17) on the piston (16) abuts against a surface (20) of the cylinder (21) to prevent substantial relative axial movement between piston (16) and cylinder (21) until operation occurs e.g. by means of an explosion (10/11), whereupon the annular flange (18) shears, that part of the sleeve (17) which remains attached to the piston providing a seal between piston (16) and cylinder (21). In alternative embodiments, the flange (18) engages a recess in a non stepped portion of the cylinder (21), or a non attached ring engages recesses in both the cylinder and piston. <IMAGE>
GB7837154A 1977-09-27 1978-09-18 Piston and cylinder arrangements Expired GB2004984B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7837154A GB2004984B (en) 1977-09-27 1978-09-18 Piston and cylinder arrangements

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4017877 1977-09-27
GB7837154A GB2004984B (en) 1977-09-27 1978-09-18 Piston and cylinder arrangements

Publications (2)

Publication Number Publication Date
GB2004984A true GB2004984A (en) 1979-04-11
GB2004984B GB2004984B (en) 1982-03-17

Family

ID=26264335

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7837154A Expired GB2004984B (en) 1977-09-27 1978-09-18 Piston and cylinder arrangements

Country Status (1)

Country Link
GB (1) GB2004984B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0628732A1 (en) * 1993-06-09 1994-12-14 Ecia - Equipements Et Composants Pour L'industrie Automobile Actuator with pyrotechnical release
EP0715993A2 (en) * 1994-12-08 1996-06-12 TEMIC Bayern-Chemie Airbag GmbH Hybrid gas generator for safety systems in vehicles
EP0715994A3 (en) * 1994-12-08 1996-06-26 Temic Bayern Chem Airbag Gmbh
WO2000070231A1 (en) * 1999-05-18 2000-11-23 Coenen Goetz Pyrotechnic actuator
FR2801649A1 (en) * 1999-11-30 2001-06-01 Lacroix Soc E Shockproof mechanism, in particular for use in space sector

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0628732A1 (en) * 1993-06-09 1994-12-14 Ecia - Equipements Et Composants Pour L'industrie Automobile Actuator with pyrotechnical release
FR2706544A1 (en) * 1993-06-09 1994-12-23 Ecia Equip Composants Ind Auto Pyrotechnic actuator.
EP0715993A2 (en) * 1994-12-08 1996-06-12 TEMIC Bayern-Chemie Airbag GmbH Hybrid gas generator for safety systems in vehicles
EP0715994A3 (en) * 1994-12-08 1996-06-26 Temic Bayern Chem Airbag Gmbh
EP0715993A3 (en) * 1994-12-08 1996-06-26 Temic Bayern Chem Airbag Gmbh
US5601309A (en) * 1994-12-08 1997-02-11 Temic Bayern-Chemie Airbag Gmbh Hybrid gas generator for safety systems in road vehicles
WO2000070231A1 (en) * 1999-05-18 2000-11-23 Coenen Goetz Pyrotechnic actuator
FR2801649A1 (en) * 1999-11-30 2001-06-01 Lacroix Soc E Shockproof mechanism, in particular for use in space sector
WO2001040664A1 (en) * 1999-11-30 2001-06-07 Etienne Lacroix Tous Artifices S.A. Shockproof mechanism, in particular for use in space sector
JP2003515500A (en) * 1999-11-30 2003-05-07 エティエンヌ・ラクロワ・トゥ・アルティフィセ・ソシエテ・アノニム Especially for shock absorbers for space
US6755020B1 (en) 1999-11-30 2004-06-29 Etienne Lacroix Tous Artifices Sa Shockproof mechanism, in particular for use in space sector
CN1300476C (en) * 1999-11-30 2007-02-14 埃天－拉果瓦烟花股份有限公司 Shockproof mechanism, in particular for use in space sector

Also Published As

Publication number Publication date
GB2004984B (en) 1982-03-17

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee