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GB1332494A - Cushioning device in a fluid-operated piston and cylinder device - Google Patents

Cushioning device in a fluid-operated piston and cylinder device

Info

Publication number
GB1332494A
GB1332494A GB5328670A GB5328670A GB1332494A GB 1332494 A GB1332494 A GB 1332494A GB 5328670 A GB5328670 A GB 5328670A GB 5328670 A GB5328670 A GB 5328670A GB 1332494 A GB1332494 A GB 1332494A
Authority
GB
United Kingdom
Prior art keywords
piston
stroke
sleeve
cushioning
holes
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
GB5328670A
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.)
MONSUN TISON AB
Original Assignee
MONSUN TISON AB
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 MONSUN TISON AB filed Critical MONSUN TISON AB
Publication of GB1332494A publication Critical patent/GB1332494A/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
    • F15B15/222—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having a piston with a piston extension or piston recess which throttles the main fluid outlet as the piston approaches its end position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D10/00—District heating systems
    • F24D10/003—Domestic delivery stations having a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/17—District heating

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Damping Devices (AREA)
  • Actuator (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

1332494 Cushioning piston stroke MONSUNTISON A B 9 Nov 1970 [7 Nov 1969] 53286/70 Heading F1D A device for cushioning the end of the stroke of a piston 6 reciprocal in a cylinder 1 comprises a cylindrical sleeve 8 projecting from the piston rod 5 and having a plurality of radial holes 11. Near the end of the piston stroke, the sleeve 8 enters a bore 3 concentric with cylinder 1. An annular slotted sealing ring 12 is located in an annular recess 13 in bore 3, the recess communicating with the piston chamber 15 by means of passages 14. On the downward stroke, Fig.1, the sleeve 8 slidingly engages sealing ring 12 and the fluid being pushed by piston 6 is then throttled through holes 11 at a reduced rate, thus cushioning the piston stroke. The holes 11 are cut off progressively thus damping the stroke more and more till the end of the stroke is reached. On the return stroke the ring 12 is raised by sleeve 8 thus transmitting fluid to chamber 15 via passages 14 to raise piston 6. Holes 11 can be replaced by longitudinal recesses in bore 3, the sealing ring being retained in an annular recess in the sleeve Fig.2, (not shown).
GB5328670A 1969-11-07 1970-11-09 Cushioning device in a fluid-operated piston and cylinder device Expired GB1332494A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE15351/69A SE347046B (en) 1969-11-07 1969-11-07

Publications (1)

Publication Number Publication Date
GB1332494A true GB1332494A (en) 1973-10-03

Family

ID=20300521

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5328670A Expired GB1332494A (en) 1969-11-07 1970-11-09 Cushioning device in a fluid-operated piston and cylinder device

Country Status (7)

Country Link
US (1) US3677141A (en)
JP (1) JPS4813916B1 (en)
DE (1) DE2054750C3 (en)
FI (1) FI56255C (en)
GB (1) GB1332494A (en)
NO (1) NO135153C (en)
SE (1) SE347046B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103615432A (en) * 2013-12-13 2014-03-05 蚌埠液力机械有限公司 Buffering structure for forklift lifting oil cylinder
CN106678125A (en) * 2016-12-05 2017-05-17 中船重工中南装备有限责任公司 Hydraulic hoist oil cylinder buffering device and operation method
CN109578369A (en) * 2018-12-04 2019-04-05 长安大学 A kind of buffer unit of flexible boom cylinder

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US3974910A (en) * 1975-02-28 1976-08-17 Papai Imre F Fluid cylinder decelerating means
US4190230A (en) * 1975-05-05 1980-02-26 Gebrueder Buehler Ag Scavenging air valve for cleaning tubular air filter bodies
US4206684A (en) * 1975-08-19 1980-06-10 Gosney James A Hydraulic jack
FI56060C (en) * 1976-02-23 1979-11-12 Rauma Repola Oy SLUTSTAELLNINGSDAEMPARE VID HYDRAULCYLINDER
US4387280A (en) * 1978-05-29 1983-06-07 General Electric Company High speed hydraulically-actuated operating system for an electric circuit breaker
FR2444828A1 (en) * 1978-12-18 1980-07-18 Heurtey Metallurgie Control system for ram positioning - has sliding stop worked by motor driven screw and incorporating shock absorber
US4296675A (en) * 1979-07-16 1981-10-27 Aeroquip Corporation Cylinder cushion with contractable ring
US4323427A (en) * 1979-09-10 1982-04-06 General Electric Company Deceleration buffer for hydraulic linear motion drive
US4399968A (en) * 1980-05-16 1983-08-23 Rockwell International Corporation Controlled output force actuator
US4470775A (en) * 1982-09-01 1984-09-11 Lonardo Vincent P Submersible deep well pump
JPS6034963U (en) * 1983-08-19 1985-03-09 三菱自動車工業株式会社 Roof structure of automobile body
JPS6139671U (en) * 1984-08-16 1986-03-13 三菱自動車工業株式会社 Body structure of one box type car
DE3545935A1 (en) * 1985-12-23 1987-06-25 Bbc Brown Boveri & Cie Piston/cylinder arrangement
US4715260A (en) * 1986-12-22 1987-12-29 General Electric Company Seal
SE465529B (en) * 1988-11-08 1991-09-23 Sven Erik Oeverstroem PRESSURE AIR CYLINDER WITH DEVICE FOR ADAPTATION
DE69329581T2 (en) 1992-06-22 2001-05-31 Bayne Machine Works, Inc. Lift-tilt device for waste containers
US5308211A (en) * 1992-06-22 1994-05-03 Bayne Machine Works, Inc. Residential refuse collection cart lifter with universal features
US5313872A (en) * 1993-04-28 1994-05-24 Foster Raymond K End of stroke cushion for a linear hydraulic motor
US5413030A (en) * 1994-02-17 1995-05-09 Caterpillar Inc. Self-energizing snubber for a hydraulic motor
US5826562A (en) * 1994-07-29 1998-10-27 Caterpillar Inc. Piston and barrell assembly with stepped top and hydraulically-actuated fuel injector utilizing same
KR0166223B1 (en) * 1995-03-29 1998-12-01 서상기 Pneumatic cylinder
US5984609A (en) * 1998-02-23 1999-11-16 Mcneilus Truck And Manufacturing, Inc. Lifting and tipping mechanism for front loading refuse truck
US6109536A (en) * 1998-05-14 2000-08-29 Caterpillar Inc. Fuel injection system with cyclic intermittent spray from nozzle
DE20021520U1 (en) * 2000-12-20 2001-03-01 IMI Norgren GmbH, 46519 Alpen Media-operated cylinder
DE20219451U1 (en) * 2002-12-13 2003-04-24 TRW Fahrwerksysteme GmbH & Co KG, 40547 Düsseldorf hydraulic cylinders
US8151953B2 (en) * 2004-04-08 2012-04-10 Samsung Electronics Co., Ltd. Suspension and damping device for motor vehicles
US20060021833A1 (en) * 2004-04-08 2006-02-02 Hemscheidt Fahrwerktechnik Gmbh & Co. Kg Suspension and damping device for motor vehicles
DE202004005623U1 (en) * 2004-04-08 2005-08-11 Hemscheidt Fahrwerktechnik Gmbh & Co. Kg Suspension and damping device for motor vehicles
US20100116608A1 (en) * 2004-04-08 2010-05-13 Hemscheidt Fahrwerktechnik Gmbh & Co. Kg Suspension and damping device for motor vehicles
WO2006002205A2 (en) 2004-06-21 2006-01-05 Cole Jeffrey E Truck assembly for a skateboard, wheeled platform, or vehicle
US7232139B2 (en) * 2004-06-21 2007-06-19 Cole Jeffrey E Truck assembly for a skateboard, wheeled platform, or vehicle
US7216876B2 (en) * 2004-06-21 2007-05-15 Cole Jeffrey E Occupant-propelled fluid powered rotary device, truck, wheeled platform, or vehicle
US7040638B2 (en) * 2004-06-21 2006-05-09 Jeffrey Eaton Cole Occupant-propelled fluid powered rotary device, truck, wheeled platform, or vehicle
US7635136B2 (en) * 2005-06-21 2009-12-22 Jeffrey E. Cole Truck assembly for a skateboard, wheeled platform, or vehicle
DE102005032853B3 (en) * 2005-07-14 2007-02-08 Norgren Gmbh Working cylinder with cushioning
DE202005011439U1 (en) * 2005-07-18 2006-11-23 Hemscheidt Fahrwerktechnik Gmbh & Co. Kg Suspension device for motor vehicles
JP2008133920A (en) 2006-11-29 2008-06-12 Smc Corp Hydraulic cylinder
CN101776104A (en) * 2010-03-04 2010-07-14 合肥市力恒科技有限责任公司 Single-acting plunger type buffering hydraulic oil cylinder
CN101776105A (en) * 2010-03-04 2010-07-14 合肥市力恒科技有限责任公司 Single-acting piston type buffering hydraulic oil cylinder
JP5267888B2 (en) * 2010-07-27 2013-08-21 ニチユ三菱フォークリフト株式会社 Lift cylinder and forklift having the same
JP5391244B2 (en) * 2011-08-02 2014-01-15 株式会社スギノマシン Fluid pressure feed rate control device
US9511875B2 (en) 2012-06-06 2016-12-06 Hamilton Sundstrand Corporation Electromechanical actuator damping arrangement for ram air turbine
US20200191174A1 (en) * 2018-12-13 2020-06-18 Safran Landing Systems Canada Inc. Multi-channel hydraulic snubbing device
US11111936B2 (en) 2019-08-20 2021-09-07 Roller Bearing Company Of America, Inc. Piston assembly having reduced extend force and reduced displacement volume
GB2594521B (en) 2020-05-01 2024-07-10 Caterpillar Sarl Articulated truck steering
US20240035495A1 (en) * 2022-07-29 2024-02-01 Kmt Waterjet Systems, Inc. Hydraulic surge dampener

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2443312A (en) * 1944-03-06 1948-06-15 Hpm Dev Corp Pressure cylinder
US2911952A (en) * 1955-04-28 1959-11-10 Renault Double-acting pneumatic jack
US2853974A (en) * 1955-10-31 1958-09-30 Westinghouse Air Brake Co Piston cushioning arrangement for cylinders
US2991759A (en) * 1960-05-17 1961-07-11 John S Pilch Cushioning and flow control valve
US3380349A (en) * 1966-08-31 1968-04-30 F & E Mfg Company Vacuum motor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103615432A (en) * 2013-12-13 2014-03-05 蚌埠液力机械有限公司 Buffering structure for forklift lifting oil cylinder
CN103615432B (en) * 2013-12-13 2016-08-17 蚌埠液力机械有限公司 Fork truck lifting oil cylinder buffer structure
CN106678125A (en) * 2016-12-05 2017-05-17 中船重工中南装备有限责任公司 Hydraulic hoist oil cylinder buffering device and operation method
CN109578369A (en) * 2018-12-04 2019-04-05 长安大学 A kind of buffer unit of flexible boom cylinder

Also Published As

Publication number Publication date
JPS4813916B1 (en) 1973-05-01
DE2054750C3 (en) 1980-02-07
NO135153B (en) 1976-11-08
FI56255B (en) 1979-08-31
DE2054750A1 (en) 1971-06-16
NO135153C (en) 1977-02-16
FI56255C (en) 1979-12-10
DE2054750B2 (en) 1979-06-07
US3677141A (en) 1972-07-18
SE347046B (en) 1972-07-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years