GB2016602A - Automatic choke with suction- operated diaphragm pump - Google Patents

Automatic choke with suction- operated diaphragm pump

Info

Publication number
GB2016602A
GB2016602A GB7907373A GB7907373A GB2016602A GB 2016602 A GB2016602 A GB 2016602A GB 7907373 A GB7907373 A GB 7907373A GB 7907373 A GB7907373 A GB 7907373A GB 2016602 A GB2016602 A GB 2016602A
Authority
GB
United Kingdom
Prior art keywords
chamber
automatic choke
suction
engine
diaphragm pump
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.)
Granted
Application number
GB7907373A
Other versions
GB2016602B (en
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.)
Zenith Carburetter Co Ltd
Original Assignee
Zenith Carburetter Co 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 Zenith Carburetter Co Ltd filed Critical Zenith Carburetter Co Ltd
Priority to GB7907373A priority Critical patent/GB2016602B/en
Publication of GB2016602A publication Critical patent/GB2016602A/en
Application granted granted Critical
Publication of GB2016602B publication Critical patent/GB2016602B/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
    • F02M1/04—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling being auxiliary carburetting apparatus able to be put into, and out of, operation, e.g. having automatically-operated disc valves
    • F02M1/046—Auxiliary carburetting apparatus controlled by piston valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
    • F02M7/06—Means for enriching charge on sudden air throttle opening, i.e. at acceleration, e.g. storage means in passage way system
    • F02M7/08—Means for enriching charge on sudden air throttle opening, i.e. at acceleration, e.g. storage means in passage way system using pumps
    • F02M7/087—Means for enriching charge on sudden air throttle opening, i.e. at acceleration, e.g. storage means in passage way system using pumps changing output according to temperature in engine

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Means For Warming Up And Starting Carburetors (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)

Abstract

An i.c. engine has diaphragm fuel pump 14 incorporated in the body of an automatic choke. The volume of control chamber 68 is controlled in accordance with engine temperature and the depression in it is limited by a mechanism comprising a beam 96 which rocks on the diaphragm 71, a control rod 97 which is pivotally connected to one end of the beam 96 and which has its location within the chamber 68 controlled by the thermostatic mechanism of the cold start device in accordance with engine temperature, and a suction port shut-off valve 95 which is spring seated on the other end of the beam 96. A clearance between the rod 97 and a bore 99 in which it slides provides a restricted air bleed into the chamber 68. The suction port is connected to the engine inlet manifold. <IMAGE>
GB7907373A 1978-03-09 1979-03-02 Automatic choke with suctionoperated diaphragm pump Expired GB2016602B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7907373A GB2016602B (en) 1978-03-09 1979-03-02 Automatic choke with suctionoperated diaphragm pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB946778 1978-03-09
GB7907373A GB2016602B (en) 1978-03-09 1979-03-02 Automatic choke with suctionoperated diaphragm pump

Publications (2)

Publication Number Publication Date
GB2016602A true GB2016602A (en) 1979-09-26
GB2016602B GB2016602B (en) 1982-12-15

Family

ID=26242957

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7907373A Expired GB2016602B (en) 1978-03-09 1979-03-02 Automatic choke with suctionoperated diaphragm pump

Country Status (1)

Country Link
GB (1) GB2016602B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0082583A1 (en) * 1981-03-27 1983-06-29 Solex (U.K.) Limited A cold start fuel/air mixture supply device, and an air/fuel induction system for spark ignition internal combustion engines including a cold start system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0082583A1 (en) * 1981-03-27 1983-06-29 Solex (U.K.) Limited A cold start fuel/air mixture supply device, and an air/fuel induction system for spark ignition internal combustion engines including a cold start system

Also Published As

Publication number Publication date
GB2016602B (en) 1982-12-15

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Legal Events

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