GB1204948A - Gas safety apparatus - Google Patents

Gas safety apparatus

Info

Publication number
GB1204948A
GB1204948A GB56826/68A GB5682668A GB1204948A GB 1204948 A GB1204948 A GB 1204948A GB 56826/68 A GB56826/68 A GB 56826/68A GB 5682668 A GB5682668 A GB 5682668A GB 1204948 A GB1204948 A GB 1204948A
Authority
GB
United Kingdom
Prior art keywords
shaft
valve
spring
pawl
housing
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
GB56826/68A
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.)
Saunier Duval SA
Original Assignee
Saunier Duval SA
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 Saunier Duval SA filed Critical Saunier Duval SA
Publication of GB1204948A publication Critical patent/GB1204948A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
    • F23N5/107—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples using mechanical means, e.g. safety valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/08—Regulating fuel supply conjointly with another medium, e.g. boiler water
    • F23N1/087—Regulating fuel supply conjointly with another medium, e.g. boiler water using mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/18—Groups of two or more valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/20—Membrane valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/24—Valve details

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Control Of Combustion (AREA)

Abstract

1,204,948. Burner controls. SAUNTER DUVAL. 29 Nov., 1968 [1 Dec., 1967], No. 56826/68. Heading F4T. [Also in Division F2] A control apparatus for a gas water heater comprises, in a housing 1, a diaphragm 23, which moves only when water flows into the heater, connected to a rod 24 and a plate 26 and urged against movement by a spring 25 between the plate 26 and housing 1, and a lever 22 pivoted on the housing at 27 has one end contacting plate 26 and the other end contacting the shaft 21 of an outlet valve closure member 20 which controls the gas flow to the main burner and is biased towards its open position by a spring 28, the lever thus being unable to rotate and permit valve 20 to open unless water flows into the heater. The initial gas flow to a pilot light (not shown) from a chamber 6 in the housing is brought about by manual depression of the knob 17 of a shaft 16 against a spring 18 to open a gas inlet valve closure member 12 carried on an aligned shaft 15 against the action of a spring 14, and the shaft 16 carries a perpendicular arm 35 having, e.g. a retractable wheel or ball, or flexible part 37, which engages the lever 22 to maintain valve 20 closed when shaft 16 is depressed in case the water is switched on accidentally. Simultaneously, a leg 36 on shaft 16 engages and depresses, via a leg of a rotatable pawl 36, an armature 30 slidable in an electromagnet 29 operated by a device sensitive to the pilot flame, e.g. a thermocouple. On release of knob 17, part 37 is retracted to permit operation of valve 20 and the shaft 15 has a slot 38 which engages the other leg of pawl 33 to prevent closure of valve 12. Should the pilot light go out, armature 30 is released and a spring 32 urges it against the pawl to release shaft 15 and close valve 12. The knob 17 may be rotated when in its outer position to lock it against inward movement and such rotation may also cause a limb secured to shaft 16 to contact the pawl 33 and disengage it from the slot 38. A gas regulator 8-11 includes a loading weight 10.
GB56826/68A 1967-12-01 1968-11-29 Gas safety apparatus Expired GB1204948A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR130514 1967-12-01

Publications (1)

Publication Number Publication Date
GB1204948A true GB1204948A (en) 1970-09-09

Family

ID=8642573

Family Applications (1)

Application Number Title Priority Date Filing Date
GB56826/68A Expired GB1204948A (en) 1967-12-01 1968-11-29 Gas safety apparatus

Country Status (5)

Country Link
BE (1) BE722980A (en)
DE (1) DE1811867C3 (en)
FR (1) FR1554818A (en)
GB (1) GB1204948A (en)
NL (1) NL149279B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2932307A1 (en) * 1978-08-11 1980-03-06 Matsushita Electric Ind Co Ltd DEVICE FOR CONTROLLING THE HEATING OF A FLUID

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2184373B1 (en) * 1972-05-15 1974-09-27 Saunier Duval
FR2256696A5 (en) * 1973-12-26 1975-07-25 Saunier Duval Ignition preventer for gas throughflow water heater - has bell-shaped elastic spring bellows cooperating with seating to close outlet pipe
FR2562216B1 (en) * 1984-04-03 1989-01-20 Sdecc VARIABLE RIGIDITY ARMING MECHANISM FOR APPARATUS FOR INSTANT PRODUCTION OF HOT GAS WATER

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2932307A1 (en) * 1978-08-11 1980-03-06 Matsushita Electric Ind Co Ltd DEVICE FOR CONTROLLING THE HEATING OF A FLUID

Also Published As

Publication number Publication date
DE1811867A1 (en) 1969-07-10
FR1554818A (en) 1969-01-24
DE1811867C3 (en) 1974-02-21
BE722980A (en) 1969-04-01
DE1811867B2 (en) 1973-07-26
NL6817114A (en) 1969-06-03
NL149279B (en) 1976-04-15

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Legal Events

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