ATE68563T1 - DEVICE FOR POLLUTION CONTROL FOR AN INTERNAL ENGINE. - Google Patents

DEVICE FOR POLLUTION CONTROL FOR AN INTERNAL ENGINE.

Info

Publication number
ATE68563T1
ATE68563T1 AT86830253T AT86830253T ATE68563T1 AT E68563 T1 ATE68563 T1 AT E68563T1 AT 86830253 T AT86830253 T AT 86830253T AT 86830253 T AT86830253 T AT 86830253T AT E68563 T1 ATE68563 T1 AT E68563T1
Authority
AT
Austria
Prior art keywords
control chamber
pneumatic line
actuator
barometric
barometric control
Prior art date
Application number
AT86830253T
Other languages
German (de)
Inventor
Carlo Cucchi
Rinaldo Bonardo
Gianfranco Morbelli
Original Assignee
Fiat Auto Spa
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
Priority claimed from IT67787/85A external-priority patent/IT1183961B/en
Priority claimed from IT5407685U external-priority patent/IT206485Z2/en
Application filed by Fiat Auto Spa filed Critical Fiat Auto Spa
Application granted granted Critical
Publication of ATE68563T1 publication Critical patent/ATE68563T1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/05—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means
    • F02P5/14—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means dependent on specific conditions other than engine speed or engine fluid pressure, e.g. temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Means For Warming Up And Starting Carburetors (AREA)

Abstract

First (3) and second (9) inlet ducts are provided in the carburettor (C) of the engine and are located downstream and upstream respectively of the throttle valve (V) in the air intake direction. A first pneumatic line (2) puts the first inlet duct (3) into communication with the barometric control chamber (S) of an actuator (A) which controls the angle of ignition advance. The same barometric control chamber (S) is also put into communication with the second inlet duct (9) through a second pneumatic line (6) including at least one restricted section (l0) and a third pneumatic line (7). The first (2) and third (7) pneumatic lines have two associated solenoid on-off valves (4, ll), the operation of which is controlled by a sensor (l3) associated with the starter (W) and a heat sensor (l4) sensitive to the temperature of the engine lubricant. When the starter (W) is active, the low pressure downstream of the throttle valve (V) is transferred to the barometric control chamber (S) of the advance angle control actuator (A). When the starter (W) is returned to the rest position, the low pressure upstream of the throttle valve (V) is transferred to the barometric chamber (S) through the second pneumatic line (6) The restricted section (l0) of which delays the propagation of the pressure gradients towards the barometric control chamber (S) of the actuator (A). This operating condition exists until the temperature of the engine lubricant reaches a threshold level of the order of 45-85 DEG C. When this treshold level is reached the third pneumatic line (7) is opened to put the second inlet duct (9) directly into communication with the barometric control chamber (S) of the actuator (A) for controlling the angle of advance and the ignition.
AT86830253T 1985-09-17 1986-09-12 DEVICE FOR POLLUTION CONTROL FOR AN INTERNAL ENGINE. ATE68563T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT67787/85A IT1183961B (en) 1985-09-17 1985-09-17 Ignition advance for controlling polluting emissions from IC engine
IT5407685U IT206485Z2 (en) 1985-11-22 1985-11-22 CONTROL DEVICE FOR POLLUTING EMISSIONS OF INTERNAL COMBUSTION ENGINES
EP86830253A EP0215750B1 (en) 1985-09-17 1986-09-12 Device for controlling polluting emissions from internal combustion engines

Publications (1)

Publication Number Publication Date
ATE68563T1 true ATE68563T1 (en) 1991-11-15

Family

ID=26329598

Family Applications (1)

Application Number Title Priority Date Filing Date
AT86830253T ATE68563T1 (en) 1985-09-17 1986-09-12 DEVICE FOR POLLUTION CONTROL FOR AN INTERNAL ENGINE.

Country Status (4)

Country Link
EP (1) EP0215750B1 (en)
AT (1) ATE68563T1 (en)
BR (1) BR8604586A (en)
DE (1) DE3682010D1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4096843A (en) * 1973-06-18 1978-06-27 Ethyl Corporation Starting system
US4176636A (en) * 1974-12-26 1979-12-04 Fuji Jukogyo Kabushiki Kaisha Internal combustion engine having exhaust emission control system
JPS5857632B2 (en) * 1974-12-26 1983-12-21 富士重工業株式会社 Haikigasujiyoukasouchi
JPS529731A (en) * 1975-07-11 1977-01-25 Toyota Motor Corp Ignition advance angle control device for gasoline engine
IT1091535B (en) * 1977-12-23 1985-07-06 Fiat Spa INTERNAL COMBUSTION ENGINE EQUIPPED WITH CONTROL SYSTEM FOR THE EMISSION OF HARMFUL GASES
JPS5585568U (en) * 1978-12-08 1980-06-12

Also Published As

Publication number Publication date
BR8604586A (en) 1987-05-26
EP0215750A3 (en) 1988-01-13
EP0215750B1 (en) 1991-10-16
DE3682010D1 (en) 1991-11-21
EP0215750A2 (en) 1987-03-25

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee