ATE297334T1 - GAS HYDRAULIC DAMPING DEVICE - Google Patents

GAS HYDRAULIC DAMPING DEVICE

Info

Publication number
ATE297334T1
ATE297334T1 AT02405588T AT02405588T ATE297334T1 AT E297334 T1 ATE297334 T1 AT E297334T1 AT 02405588 T AT02405588 T AT 02405588T AT 02405588 T AT02405588 T AT 02405588T AT E297334 T1 ATE297334 T1 AT E297334T1
Authority
AT
Austria
Prior art keywords
oil chamber
damping device
gas
hydraulic damping
plunger
Prior art date
Application number
AT02405588T
Other languages
German (de)
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
Application granted granted Critical
Publication of ATE297334T1 publication Critical patent/ATE297334T1/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

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.
AT02405588T 2001-08-10 2002-07-11 GAS HYDRAULIC DAMPING DEVICE ATE297334T1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ATE297334T1 true ATE297334T1 (en) 2005-06-15

Family

ID=4565506

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02405588T ATE297334T1 (en) 2001-08-10 2002-07-11 GAS HYDRAULIC 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
NO20023439D0 (en) 2002-07-17
EP1283141B1 (en) 2005-06-08
PL199515B1 (en) 2008-09-30
DE50203314D1 (en) 2005-07-14
ES2243679T3 (en) 2005-12-01
PL355253A1 (en) 2003-02-24
NO20023439L (en) 2003-02-11
EP1283141A1 (en) 2003-02-12

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee