GB1452983A - Water drainage valve for compressed air installations particularly compressed air brake systems in motor vehicles - Google Patents

Water drainage valve for compressed air installations particularly compressed air brake systems in motor vehicles

Info

Publication number
GB1452983A
GB1452983A GB213374A GB213374A GB1452983A GB 1452983 A GB1452983 A GB 1452983A GB 213374 A GB213374 A GB 213374A GB 213374 A GB213374 A GB 213374A GB 1452983 A GB1452983 A GB 1452983A
Authority
GB
United Kingdom
Prior art keywords
compressed air
water
chamber
pressure
diaphragm
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
GB213374A
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.)
Graubremse GmbH
Original Assignee
Graubremse GmbH
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 Graubremse GmbH filed Critical Graubremse GmbH
Publication of GB1452983A publication Critical patent/GB1452983A/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
    • F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
    • F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
    • F16T1/20—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by floats
    • F16T1/22—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by floats of closed-hollow-body type
    • F16T1/24—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by floats of closed-hollow-body type using levers
    • 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
    • F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
    • F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
    • F16T1/12—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by excess or release of pressure
    • F16T1/14—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by excess or release of pressure involving a piston, diaphragm, or bellows, e.g. displaceable under pressure of incoming condensate

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

1452983 Apparatus for releasing liquid from compressed air systems GRAUBREMSE GmbH 16 Jan 1974 [8 March 1973] 02133/74 Heading F4U [Also in Division F2] A valve assembly for automatically draining water from a compressed air brake system comprises a valve body having a flat plate-shaped cover 1 with screw threads 3 for attachment to the system and a valve seat 4 through which the water drains. The disposition of threads 3 is such that, when installed in the system, substantially the entire valve assembly is protected from damage. In one arrangement, Fig. 1, a moulded plastics part 8 is sprung into engagement with the upstanding rim 2 of metal cover 1. Part 8 has a central extension 11 containing a filter 12 and is joined to a further plastics part 14 forming an accumulator chamber 18. In operation, compressed air and entrained water from the system enter the valve assembly through a transverse recess 15 in part 14 and through gaps between parts 8, 14 and thence flow through filter 12 into a chamber 16 which is closed by a stressed diaphragm 10 seating at 9 on part 8. When the air pressure is sufficient, diaphragm 10 unseats from the latter permitting air to fill chamber 17 and accumulator 18 connecting therewith through ducts 19. Diaphragm 10 remains urged against seat 4 by system pressure in chamber 16. Should the latter now fall, e.g. as a result of brake application, relative to the pressure in accumulator chambers 17, 18, diaphragm 10 seats at 9 but unseats from 4 permitting water trapped in chambers 17, 18 to be ejected through nozzle member 5. Seat 4 remains open until the pressure in chambers 17, 18 has fallen to that in chamber 16. To permit water drainage to be effected manually nozzle member 5 is supported in cover 1 by an elastic collar 7 so as to be movable inwardly under finger pressure to unseat sealing rim 6 on the nozzle member from cover 1. In a modification, Fig. 3, the valve assembly has a similar external configuration but contains a ring-shaped hollow float 21 which is coupled by levers 23 to a valve stem 22 passing through the centre thereof. Thus water entering at 24 causes float 21 to rise and lift stem 22 off seat 4 to permit the water to be ejected.
GB213374A 1973-03-08 1974-01-16 Water drainage valve for compressed air installations particularly compressed air brake systems in motor vehicles Expired GB1452983A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732311517 DE2311517C3 (en) 1973-03-08 1973-03-08 Drain valve for compressed air systems, in particular compressed air brake systems for motor vehicles, actuated as a function of a pressure difference

Publications (1)

Publication Number Publication Date
GB1452983A true GB1452983A (en) 1976-10-20

Family

ID=5874162

Family Applications (1)

Application Number Title Priority Date Filing Date
GB213374A Expired GB1452983A (en) 1973-03-08 1974-01-16 Water drainage valve for compressed air installations particularly compressed air brake systems in motor vehicles

Country Status (4)

Country Link
AT (1) AT335298B (en)
DE (1) DE2311517C3 (en)
FR (1) FR2220741B1 (en)
GB (1) GB1452983A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3238409C1 (en) * 1982-10-16 1984-05-10 Graubremse Gmbh, 6900 Heidelberg Automatic drain valve for compressed air systems, in particular compressed air brake systems of motor vehicles
FR2618874B1 (en) * 1987-07-28 1989-12-08 Abx Sa AUTOMATIC MEMBRANE BLEEDING DEVICE FOR PNEUMATIC CIRCUITS
DE4031494C2 (en) * 1990-10-05 1994-07-21 Bundesrep Deutschland Hydraulic oil tank
CN102748526A (en) * 2012-06-27 2012-10-24 浙江荣众机械有限公司 Automatic water drain valve

Also Published As

Publication number Publication date
FR2220741A1 (en) 1974-10-04
ATA7174A (en) 1976-06-15
DE2311517A1 (en) 1974-09-12
AT335298B (en) 1977-03-10
FR2220741B1 (en) 1983-06-03
DE2311517C3 (en) 1979-06-13
DE2311517B2 (en) 1976-10-07

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee