GB1432456A - Choke control unit for internal combstion engine - Google Patents

Choke control unit for internal combstion engine

Info

Publication number
GB1432456A
GB1432456A GB4092173A GB4092173A GB1432456A GB 1432456 A GB1432456 A GB 1432456A GB 4092173 A GB4092173 A GB 4092173A GB 4092173 A GB4092173 A GB 4092173A GB 1432456 A GB1432456 A GB 1432456A
Authority
GB
United Kingdom
Prior art keywords
switch
open
responsive
engine
temperature
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
GB4092173A
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.)
Old Carco LLC
Original Assignee
Chrysler Corp
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 Chrysler Corp filed Critical Chrysler Corp
Publication of GB1432456A publication Critical patent/GB1432456A/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
    • F02M1/08—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling becoming operative or inoperative automatically
    • F02M1/10—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling becoming operative or inoperative automatically dependent on engine temperature, e.g. having thermostat
    • F02M1/12—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling becoming operative or inoperative automatically dependent on engine temperature, e.g. having thermostat with means for electrically heating thermostat

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)

Abstract

1432456 Choke control unit CHRYSLER CORP 30 Aug 1973 [13 Oct 1972] 40921/73 Heading F1B A choke control unit for an I.C. engine with a carburetter 12 having a choke valve 18 in its air intake passage 20 responsive to a thermally responsive actuating member 24, comprises a first temperature responsive electric switch 50 which closes when its temperature attains a predetermined value, a temperature responsive time delay electric switch 52 in series with the first and arranged to open when its temperature exceeds a second higher predetermined value and a heating element 26 in series with the first switch 50 and the time delay switch 52 and adapted to be positioned in thermal relationship to the thermally responsive actuating member 24 to supply heat thereto for a predetermined time controlled by the second switch 52 when the first switch 50 is closed. The switch 52 includes a heater winding 54 which when energized through switch 50 causes switch 52 to open after about four minutes; but when energized via a resistor 64 (i.e. when switch 50 is open, at low ambient temperature) takes longer to cause switch 52 to open. The lower current passing through element 26 when switch 50 is open ensures that the choke value 18 takes longer to open. Switch 50 is chosen to close at 68‹F and open at 48‹F. A further switch 72, which is engine operation responsive, e.g. inlet vacuum responsive) may be included to prevent energization of the heating element 26 until the engine is in operation. The resistor 64 may be omitted so that, when the switch 50 is open, the actuating member 24 is heated only by engine heat.
GB4092173A 1972-10-13 1973-08-30 Choke control unit for internal combstion engine Expired GB1432456A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29751872A 1972-10-13 1972-10-13

Publications (1)

Publication Number Publication Date
GB1432456A true GB1432456A (en) 1976-04-14

Family

ID=23146636

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4092173A Expired GB1432456A (en) 1972-10-13 1973-08-30 Choke control unit for internal combstion engine

Country Status (5)

Country Link
US (1) US3768453A (en)
AU (1) AU470590B2 (en)
CA (1) CA972239A (en)
FR (1) FR2203027B1 (en)
GB (1) GB1432456A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3898967A (en) * 1973-06-04 1975-08-12 Gte Sylvania Inc Automatic choke assembly
US3972311A (en) * 1974-11-20 1976-08-03 Depetris Peter S Electronic choke control
US4201735A (en) * 1978-09-08 1980-05-06 Fasco Industries, Inc. Method of manufacturing a choke control device
JPS61101659A (en) * 1984-10-22 1986-05-20 Fuji Heavy Ind Ltd Autochoke device
EP2025909A3 (en) * 2007-08-13 2010-03-10 Briggs and Stratton Corporation Automatic choke for an engine
CN104884776B (en) 2013-08-15 2018-09-25 科勒公司 System and method for the fuel-air ratio that internal combustion engine is electronically controlled
US10054081B2 (en) 2014-10-17 2018-08-21 Kohler Co. Automatic starting system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2158424A (en) * 1935-12-12 1939-05-16 Milton E Chandler Automatic choke
GB564563A (en) * 1943-07-27 1944-10-03 Chance Brothers Ltd Improvements relating to apparatus for automatically controlling the air valves of internal combustion engines

Also Published As

Publication number Publication date
US3768453A (en) 1973-10-30
AU5979873A (en) 1975-03-06
FR2203027A1 (en) 1974-05-10
FR2203027B1 (en) 1976-06-18
AU470590B2 (en) 1976-03-18
CA972239A (en) 1975-08-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee