EP0356151A3 - Centrifugal advance mechanism - Google Patents

Centrifugal advance mechanism Download PDF

Info

Publication number
EP0356151A3
EP0356151A3 EP19890308367 EP89308367A EP0356151A3 EP 0356151 A3 EP0356151 A3 EP 0356151A3 EP 19890308367 EP19890308367 EP 19890308367 EP 89308367 A EP89308367 A EP 89308367A EP 0356151 A3 EP0356151 A3 EP 0356151A3
Authority
EP
European Patent Office
Prior art keywords
weights
driving shaft
driven
action
driving
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
EP19890308367
Other languages
German (de)
French (fr)
Other versions
EP0356151B1 (en
EP0356151A2 (en
Inventor
Yuzo Kadomukai
Yozo Nakamura
Hiromitsu Nagae
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of EP0356151A2 publication Critical patent/EP0356151A2/en
Publication of EP0356151A3 publication Critical patent/EP0356151A3/en
Application granted granted Critical
Publication of EP0356151B1 publication Critical patent/EP0356151B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F02P5/06—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 engine speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)
  • Valve Device For Special Equipments (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)

Abstract

A centrifugal advance mechanism has a plurality of rotating weights (5) which travel under centrifugal force outwardly from an axis of a driving shaft (1) against the action of resilient means (11) urging the weights inwardly. The weights carry driving cam members (6) which interact by cam action with a driven cam member (8) which is thereby driven in rotation by the weights. The relative rotational position of the driven cam member (8) and the driving shaft (1) is thus determined by the radial position of the weights relative to the driving shaft (1). To improve performance of the mechanism under rapid rotational speed fluctuations, by means of the geometry of the weights (5) and the interacting cam surfaces of the driving and driven cam members (6,8), the inertial force of (a) the weights (5) and (b) the driven cam member (8) arising upon angular deceleration of the driving shaft (1) is controlled so as to have no outward action on the weights (5) over at least a part of the outward travel of the weights.
EP19890308367 1988-08-19 1989-08-17 Centrifugal advance mechanism Expired - Lifetime EP0356151B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP20471988A JPH07101026B2 (en) 1988-08-19 1988-08-19 Governor advance device
JP204719/88 1988-08-19

Publications (3)

Publication Number Publication Date
EP0356151A2 EP0356151A2 (en) 1990-02-28
EP0356151A3 true EP0356151A3 (en) 1991-02-20
EP0356151B1 EP0356151B1 (en) 1994-11-30

Family

ID=16495177

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890308367 Expired - Lifetime EP0356151B1 (en) 1988-08-19 1989-08-17 Centrifugal advance mechanism

Country Status (3)

Country Link
EP (1) EP0356151B1 (en)
JP (1) JPH07101026B2 (en)
DE (1) DE68919586T2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102011670B (en) * 2010-11-05 2012-05-23 长春市长铃技术开发有限公司 Device capable of automatically changing ignition advance angle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52149529A (en) * 1976-06-07 1977-12-12 Mitsubishi Electric Corp Ignition timing regulating device for engine
JPS52149530A (en) * 1976-06-07 1977-12-12 Mitsubishi Electric Corp Ignition timing regulating device for engine
JPH01244164A (en) * 1988-03-24 1989-09-28 Mitsubishi Electric Corp Centrifugal timing control device

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 13, no. 582 (M-911)(3930), 21 December 1989; & JP-A-1244164 (MITSUBISHI) 28.09.1989 *
PATENT ABSTRACTS OF JAPAN vol. 2, no. 30 (M-77)(7864), 24 February 1978; & JP-A-52149529 (MITSUBISHI) 12.12.1977 *
PATENT ABSTRACTS OF JAPAN vol. 2, no. 30 (M-77)(7864), 24 February 1978; & JP-A-52149530 (MITSUBISHI) 12.12.1977 *

Also Published As

Publication number Publication date
EP0356151B1 (en) 1994-11-30
JPH07101026B2 (en) 1995-11-01
DE68919586D1 (en) 1995-01-12
DE68919586T2 (en) 1995-05-24
JPH0255875A (en) 1990-02-26
EP0356151A2 (en) 1990-02-28

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