GB756260A - Improvements relating to buffers for railway vehicles - Google Patents

Improvements relating to buffers for railway vehicles

Info

Publication number
GB756260A
GB756260A GB1992054A GB1992054A GB756260A GB 756260 A GB756260 A GB 756260A GB 1992054 A GB1992054 A GB 1992054A GB 1992054 A GB1992054 A GB 1992054A GB 756260 A GB756260 A GB 756260A
Authority
GB
United Kingdom
Prior art keywords
cylinder
buffers
buffer
apertures
reservoir
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
GB1992054A
Inventor
Eric Hider Bowers
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.)
Dowty Hydraulic Units Ltd
Original Assignee
Dowty Hydraulic Units Ltd
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 Dowty Hydraulic Units Ltd filed Critical Dowty Hydraulic Units Ltd
Priority to GB1992054A priority Critical patent/GB756260A/en
Priority to ES0222857A priority patent/ES222857A1/en
Priority to DED20835A priority patent/DE1060894B/en
Publication of GB756260A publication Critical patent/GB756260A/en
Priority claimed from GB1325658A external-priority patent/GB879778A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
    • 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
    • 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
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
    • F16F9/063—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid comprising a hollow piston rod
    • 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
    • F16F9/36—Special sealings, including sealings or guides for piston-rods
    • F16F9/368—Sealings in pistons
    • 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
    • F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Vehicle Body Suspensions (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

756,260. Buffers. DOWTY HYDRAULIC UNITS, Ltd., [formerly DOWTY AUTO UNITS, Ltd.]. June 30, 1955 [July 7, 1954], No. 19920/54. Class 103 (5). An hydraulic buffer comprises a piston member 22 working in a cylinder 21 provided with apertures 32-37 through which the fluid passes to the reservoir 15, the resistance to compression of the buffer increasing progressively as the piston blanks off the apertures. To prevent excessive pressure build-up in the cylinder a relief valve 44, which is controlled by the pilot valve 46, is provided to vent the fluid in the cylinder to the reservoir 15. The relief valve may be of the sleeve type and mounted axially of the buffer.
GB1992054A 1954-07-07 1954-07-07 Improvements relating to buffers for railway vehicles Expired GB756260A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1992054A GB756260A (en) 1954-07-07 1954-07-07 Improvements relating to buffers for railway vehicles
ES0222857A ES222857A1 (en) 1954-07-07 1955-07-07 Improvements in the construction of topes for railway vehicles (Machine-translation by Google Translate, not legally binding)
DED20835A DE1060894B (en) 1954-07-07 1955-07-07 Buffers for railway and tram vehicles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1992054A GB756260A (en) 1954-07-07 1954-07-07 Improvements relating to buffers for railway vehicles
GB1325658A GB879778A (en) 1958-04-25 1958-04-25 Improvements in or relating to hydraulic buffers

Publications (1)

Publication Number Publication Date
GB756260A true GB756260A (en) 1956-09-05

Family

ID=26249653

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1992054A Expired GB756260A (en) 1954-07-07 1954-07-07 Improvements relating to buffers for railway vehicles

Country Status (2)

Country Link
DE (1) DE1060894B (en)
GB (1) GB756260A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1116706B (en) * 1957-11-15 1961-11-09 Dowty Hydraulic Units Ltd Hydraulically operated buffer for railway and tram vehicles
DE1139531B (en) * 1957-05-16 1962-11-15 Oleo Pneumatics Ltd Buffers for rail vehicles

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE807949C (en) * 1950-03-26 1951-07-09 Krauss Maffei Ag Buffer device for rail vehicles, especially sleeve buffers
DE841271C (en) * 1950-09-05 1952-06-13 Bernhard Heinrich Hydraulic shock absorber with double piston and an auxiliary piston for producing the central position of the shock absorber piston
DE888051C (en) * 1951-08-21 1953-08-27 Bayerische Motoren Werke Ag Telescopic suspension, especially for motor vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1139531B (en) * 1957-05-16 1962-11-15 Oleo Pneumatics Ltd Buffers for rail vehicles
DE1116706B (en) * 1957-11-15 1961-11-09 Dowty Hydraulic Units Ltd Hydraulically operated buffer for railway and tram vehicles

Also Published As

Publication number Publication date
DE1060894B (en) 1959-07-09

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