PL355253A1 - Hydropneumatic shock damping device - Google Patents

Hydropneumatic shock damping device

Info

Publication number
PL355253A1
PL355253A1 PL02355253A PL35525302A PL355253A1 PL 355253 A1 PL355253 A1 PL 355253A1 PL 02355253 A PL02355253 A PL 02355253A PL 35525302 A PL35525302 A PL 35525302A PL 355253 A1 PL355253 A1 PL 355253A1
Authority
PL
Poland
Prior art keywords
oil chamber
damping device
shock damping
plunger
box
Prior art date
Application number
PL02355253A
Other versions
PL199515B1 (en
Inventor
Otto Ziegler
Original Assignee
Schwab Verkehrstechnik Ag
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 Schwab Verkehrstechnik Ag filed Critical Schwab Verkehrstechnik Ag
Publication of PL355253A1 publication Critical patent/PL355253A1/en
Publication of PL199515B1 publication Critical patent/PL199515B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G9/00—Draw-gear
    • B61G9/04—Draw-gear combined with buffing appliances
    • B61G9/08—Draw-gear combined with buffing appliances with fluid springs or fluid shock-absorbers; Combinations thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G11/00—Buffers
    • B61G11/12—Buffers with fluid springs or shock-absorbers; Combinations thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Lubricants (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)

Abstract

The device has a box (1) and a plunger (2), with one having a first gas chamber (8) under excess pressure, and the other having an oil chamber (9) filled with hydraulic fluid. A gas-hydraulic regulator unit (12) between box and plunger has a ventilation unit (7) in front of it. This has a bore (16) opening into the upper section of the oil chamber, and a channel (20), to connect the regulator unit to the oil chamber. The channel is closed by a spring-loaded valve (19). The valve is switched or moved against the spring force by the oil flowing into the oil chamber.
PL355253A 2001-08-10 2002-07-30 Hydropneumatic shock damping device PL199515B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH14732001 2001-08-10

Publications (2)

Publication Number Publication Date
PL355253A1 true PL355253A1 (en) 2003-02-24
PL199515B1 PL199515B1 (en) 2008-09-30

Family

ID=4565506

Family Applications (1)

Application Number Title Priority Date Filing Date
PL355253A PL199515B1 (en) 2001-08-10 2002-07-30 Hydropneumatic shock damping device

Country Status (6)

Country Link
EP (1) EP1283141B1 (en)
AT (1) ATE297334T1 (en)
DE (1) DE50203314D1 (en)
ES (1) ES2243679T3 (en)
NO (1) NO20023439L (en)
PL (1) PL199515B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731771A (en) * 1972-02-17 1973-05-08 Pittsburgh Forging Co Pneumatic-hydraulic shock absorber
DE3328300A1 (en) * 1983-07-20 1985-02-07 Schweizerische Aluminium Ag, Chippis SHOCK ABSORBER
US4805517A (en) * 1987-11-16 1989-02-21 Rail Car America, Inc. Gas return railway car hydraulic cushioning unit and method of converting a spring return unit
US5676265A (en) * 1996-05-01 1997-10-14 Miner Enterprises, Inc. Elastomer spring/hydraulic shock absorber cushioning device

Also Published As

Publication number Publication date
DE50203314D1 (en) 2005-07-14
EP1283141B1 (en) 2005-06-08
ES2243679T3 (en) 2005-12-01
NO20023439L (en) 2003-02-11
EP1283141A1 (en) 2003-02-12
NO20023439D0 (en) 2002-07-17
PL199515B1 (en) 2008-09-30
ATE297334T1 (en) 2005-06-15

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Legal Events

Date Code Title Description
LAPS Decisions on the lapse of the protection rights

Effective date: 20090730