GB1115776A - Liquid spring and a combined drawgear and buffer gear incorporating such a spring - Google Patents

Liquid spring and a combined drawgear and buffer gear incorporating such a spring

Info

Publication number
GB1115776A
GB1115776A GB4021965A GB4021965A GB1115776A GB 1115776 A GB1115776 A GB 1115776A GB 4021965 A GB4021965 A GB 4021965A GB 4021965 A GB4021965 A GB 4021965A GB 1115776 A GB1115776 A GB 1115776A
Authority
GB
United Kingdom
Prior art keywords
valve
ram
spring
pressure
plate
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
GB4021965A
Inventor
Karl Bittel
Gerd Nebel
Hans-Dieter Schulze
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.)
VEB ZENTRALE ENTWICKLUNG und KONSTRUKTION ZEK HYDRAULIK
Original Assignee
VEB ZENTRALE ENTWICKLUNG und KONSTRUKTION ZEK HYDRAULIK
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 VEB ZENTRALE ENTWICKLUNG und KONSTRUKTION ZEK HYDRAULIK filed Critical VEB ZENTRALE ENTWICKLUNG und KONSTRUKTION ZEK HYDRAULIK
Publication of GB1115776A publication Critical patent/GB1115776A/en
Expired legal-status Critical Current

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F5/00—Liquid springs in which the liquid works as a spring by compression, e.g. combined with throttling action; Combinations of devices including liquid springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F16F9/342—Throttling passages operating with metering pins

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)

Abstract

1,115,776. Combined buffer and draw gear. ZENTRALE ENTWICKLUNG UND KONSTRUKTION ZEK HYDRAULIK VEB. 21 Sept., 1965, No. 40219/65. Heading B7T. [Also in Division F2] If the housing 1<SP>1</SP> of a liquid spring in railway vehicle combined buff and draw gear is held stationary by limit stops and a buffing load is applied to the right-hand end of the gear shown, then a ram 5<SP>1</SP> is first moved by a surrounding yoke (not shown) to open valve 8<SP>1</SP> against pressure on the ram 5<SP>1</SP> or by a spring (not shown) providing communication between liquid chambers 16<SP>1</SP> and 15<SP>1</SP> via bores 21 and 22. When the load moves further then the plate 4 and the plunger 3<SP>1</SP> with its head 9<SP>1</SP> are moved into the chamber 16<SP>1</SP> to increase the resistance. The valve 8<SP>1</SP> may be a pressure reducing valve to alter the characteristics of the gear. If the housing 1<SP>1</SP> moves relatively to the plate 4 as in draw loading then the valve 8<SP>1</SP> is held closed by the pressure in chamber 16<SP>1</SP>, the ram 5<SP>1</SP> not being abutted and the chambers 15<SP>1</SP> and 16<SP>1</SP> remain separated from one another. Damping during draw loading can only be obtained it an additional damping plunger (not shown) is used. In the embodiment of Figs. 1-3 (not shown) the ram (5) does not extend to the surface of the plate 4 and is provided with a smaller area for the pressure to act upon than the valve (8) so that when the whole arrangement is compressed by the yoke (2) the valve (8) remains closed initially until the ram (5) reaches a position where it is flush with the surface of the plate 4. Further compression then moves the ram and opens the valve so that the chambers (15) and (16) are connected. Initial pressure is produced within the chamber (15) by adjustment of the screw (11).
GB4021965A 1965-09-02 1965-09-21 Liquid spring and a combined drawgear and buffer gear incorporating such a spring Expired GB1115776A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL6511489A NL6511489A (en) 1965-09-02 1965-09-02
BE672574A BE672574A (en) 1965-09-02 1965-11-19

Publications (1)

Publication Number Publication Date
GB1115776A true GB1115776A (en) 1968-05-29

Family

ID=25656345

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4021965A Expired GB1115776A (en) 1965-09-02 1965-09-21 Liquid spring and a combined drawgear and buffer gear incorporating such a spring

Country Status (3)

Country Link
BE (1) BE672574A (en)
GB (1) GB1115776A (en)
NL (1) NL6511489A (en)

Also Published As

Publication number Publication date
BE672574A (en) 1966-05-20
NL6511489A (en) 1967-03-03

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