US2977778A - Automatic timing device for engines - Google Patents

Automatic timing device for engines Download PDF

Info

Publication number
US2977778A
US2977778A US845444A US84544459A US2977778A US 2977778 A US2977778 A US 2977778A US 845444 A US845444 A US 845444A US 84544459 A US84544459 A US 84544459A US 2977778 A US2977778 A US 2977778A
Authority
US
United States
Prior art keywords
shaft
engine
yweights
chamber
engines
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 - Lifetime
Application number
US845444A
Other languages
English (en)
Inventor
Robert R B Backlund
John M Bailey
Goloff Alexander
Donald C Dowdall
Harry M Kiley
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor Co
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 Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Priority to US845444A priority Critical patent/US2977778A/en
Priority to DEC22322A priority patent/DE1241663B/de
Application granted granted Critical
Publication of US2977778A publication Critical patent/US2977778A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
    • F02D1/16—Adjustment of injection timing
    • F02D1/162—Adjustment of injection timing by mechanical means dependent on engine speed for angular adjustment of driving and driven shafts

Definitions

  • Devices for automatically varying the time of tiring or the time of injection in a compression ignition type engine are known and usually comprise system for connecting two shafts including weights adapted to move away 'from eachother under the iniiuence of centrifugal force and against an opposing resilient action, the angular relationship between the two shafts being modified in response to movement of the weights.
  • Fig. 1 is a central verticalse'ction through anauto matic timing device embodyingthe present inventionand illustrating its connection withA the fuel injection pump engine of the comcam shaft of an internal combustion
  • Fig. 2 is a sectional view Vwith'parts brokenaway In Figi of the drawings. ldrive means forafuel in- .i
  • United States Patif -jection cam shaft is shown as comprising a gear 10 which is engine driven through a gear train not shown and in the present instance is illustrated as also connected with and imparting rotation to a power take-ott shaft represented at 11.
  • the gear 10 drives a fuel injection cam shaft shown at 12 whichY drives a fuel injection pump for each of the cylinders of the engine, one of such pumps being illustrated aty 13 as having a cam follower 14 engageable. with a cam 15 on a shaft12.
  • the gear 10 carries, as shown in Figs. l, 2 and 3, a yweight housing 16 or" cylindrical shape on its outer diameter and having atsubstantially rectangular chamber as shown at 17 for the reception of a pair of ilyweights 18 ⁇ disposed for radial sliding movement in the chamber 17.
  • the housing 16 is secured to the gear 10 as by cap screws such as shown at 19 in Figs. 2 and 3 and a recessed cover plate 2li issecured to the member 16 as by cap screws 21.
  • the recessed cover plate 20 contains a disc 22 formed on or non-rotatably secured to a shaft 23 which is piloted in the gear 16 as by a bearing illustrated at 24fand suitably supported in a bearing 2S adjacent its oppositeend.
  • the yweights 18 are .provided withangularly disposed cam slots 2S which slidably receiveblocks 29.carried by pins 30 which project from the face of the disc 22.
  • the -tlyweights 18 are biased inwardly toward the center of the chamber 17 by springs 32 and upon acceleration of the engine to high speed operation the weights move outwardly underV theV influence of centrifugal force ⁇ against the force of the springs 32.
  • the cam slots 28 acting on'the slide blocks 29 f then, through the pocket which receives the springs 32,
  • a supply of oil under pressure preferably from the engine lubricating oil system, is introduced to the chamber 17 through anaxial bore 34 in the power takeoff shaft and through a bore 3S and connecting radial passage 36 in the shaft 23.
  • the oil passes further through radial passages 37 in the ilyweights 18 asbest shown in Figs. l tol 3 and radially outwardly of the ilyweights.
  • the disc 22 as best illustrated in Fig. l is slightly by which it is housed and is lspaced from the member 20 to permit oil in the chamber 17' to occupy the spacev behind it.
  • pressure on the face of the disc which is exposed in the chamber 17 iscommunicated also to theopposite side of the disc to relieve a tendency of the discto bind against the housing and thus also contribute smooth operation of a device.
  • an automatic timing devicerfor engines having a rotatable shaft as a partof the engine timing mechanism and arctatable member fordrivingy means to to the desiredl I vary the phase positions of said shafts in response to their rotary speed comprising a iiyweight chamber carried by the driving member, a pair of flyweights in said chamber, driving pins disposed in cam slots between the yweights and the timing mechanism shaft to advance the timing when the ilyweights move outwardly in response to acceleration, resilient means to resist outward movement of the iiyweights, and uid damping means to damp their outward movement.
  • an automatic timing device for engines having a rotatable shaft as a part of the engine timing mechanism andV a rotatable member for driving said shaft means to vary the phase positions of said shafts in response to their rotary speed
  • a rotatable member for driving said shaft means to vary the phase positions of said shafts in response to their rotary speed comprising a yweight chamber carried by the driving member, a pair of yweights in said chamber, driving pins disposed in cam slots between the yweghts and the timing mechanism shaft to advance the timing when the yweighs move outwardly in response to acceleration, resilient means to resist outward movement of the yweights, and uid damping means to damp both the outward and inward movement of the yweights.
  • An automatic timing device for use between aligned driving and driven shafts which actuate the timing mechanism of an engine comprising a iiyweight chamber carried by the driving shaft, a pair of iiyweights disposed for opposite radial sliding movement in said chamber, a disc on the driven shaft, drive pins on said disc, and said yweights having cam slots receiving said pins whereby outward movement of the yweights in response to acceleration will advance the phase position of the driven shaft, means to supply fluid to said fiyweight chamber, and means to .restrict the flow of fluid past the yweights as they move radially in the chamber.
  • An automatic timing device for use between aligned driving and driven shafts which actuate the timing mechanism of an engine comprising a yweight chamber carried by the driving shaft, a pair of yweights disposed for opposite ⁇ radial sliding movement in said chamber, a disc on the driven shaft, drive pins on said disc, and said yweights having cam slots receiving said pin whereby outward movement of the yweights in response to acceleration will advance the phase position of the driven shaft, said flyweights and said disc being enclosed in a fluid tight housing, means to supply a damping uid under pressure to said housing, and means to communicate said fluid to the surface of the disc opposite the iiyweights to balance the thrust effect of the pressure.
  • a device for automatically-changing the phase position of a rotary driving member and a shaft driven thereby in response to their rotary speed comprising. a yweight chamber carried by the driving member, a pair of yweights in said chamber, driving pins disposedin cam slots between the yweights and they timing mechanism shaft to advance the timing when the yweights move outwardly in response to acceleration, resilient means to resist outward movement of the yweights, and fluidl damping means to damp their outward movement.

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)
US845444A 1959-10-09 1959-10-09 Automatic timing device for engines Expired - Lifetime US2977778A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US845444A US2977778A (en) 1959-10-09 1959-10-09 Automatic timing device for engines
DEC22322A DE1241663B (de) 1959-10-09 1960-09-12 Spritzversteller zur Verstellung des Einspritzbeginns bei Brennkraftmaschinen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US845444A US2977778A (en) 1959-10-09 1959-10-09 Automatic timing device for engines

Publications (1)

Publication Number Publication Date
US2977778A true US2977778A (en) 1961-04-04

Family

ID=25295246

Family Applications (1)

Application Number Title Priority Date Filing Date
US845444A Expired - Lifetime US2977778A (en) 1959-10-09 1959-10-09 Automatic timing device for engines

Country Status (2)

Country Link
US (1) US2977778A (de)
DE (1) DE1241663B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3045458A (en) * 1960-04-27 1962-07-24 Gen Motors Corp Distributor
US3098366A (en) * 1961-11-16 1963-07-23 Holley Carburetor Co Ignition distributor
DE1244471B (de) * 1962-11-26 1967-07-13 Kloeckner Humboldt Deutz Ag Vorrichtung zur drehzahlabhaengigen Winkelverstellung zweier fluchtender Wellen, insbesondere fuer den Antrieb von Einspritzpumpen
US3601109A (en) * 1969-06-25 1971-08-24 Caterpillar Tractor Co Engine fuel pump timing mechanism
US4177773A (en) * 1977-12-27 1979-12-11 Cribbs John R Damped automatic variable valve timing device for internal combustion engines
EP0386455A1 (de) * 1989-03-04 1990-09-12 Robert Bosch Gmbh Einspritzzeitpunktversteller von Brennkraftmaschinen
US6196927B1 (en) * 1994-03-03 2001-03-06 Bayerische Motoren Werke Aktiengesellschaft Arrangement for relative adjustment of rotation angle of a control shaft of an internal combustion engine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3020554A1 (de) * 1980-05-30 1981-12-03 Klöckner-Humboldt-Deutz AG, 5000 Köln Fliehkraftgeregelter einspritzzeitpunktversteller
DE3400812A1 (de) * 1984-01-12 1985-07-18 Klöckner-Humboldt-Deutz AG, 5000 Köln Fliehkraftgeregelter einspritzzeitpunktversteller

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1029026A (en) * 1911-11-10 1912-06-11 Charles Henry Newman Spark-regulator for explosion-engines.
US1579287A (en) * 1924-11-08 1926-04-06 Duten Maurice Sparking-advance control device for explosion engines
US1957181A (en) * 1932-02-27 1934-05-01 Edward W Mitchel Automatic valve timing device
US2722813A (en) * 1952-02-09 1955-11-08 Bosch Gmbh Robert Automatic phase alteration couplings for shafts

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB177386A (en) * 1921-03-10 1922-03-30 Frank Oscar Levi Chorlton Improvements relating to speed governors
DE628438C (de) * 1932-12-12 1936-04-04 Joseph Jean Bouteille Fliehkraftregler
DE940076C (de) * 1952-02-10 1956-03-08 Bosch Gmbh Robert Fliehkraftversteller, insbesondere zur AEnderung des Zuend- oder Spritzzeitpunktes von Brennkraftmaschinen
DE1058308B (de) 1955-04-21 1959-05-27 Friedmann & Maier Ag Einrichtung zur Verstellung des Einspritzbeginns bei Brennkraftmaschinen
FR1179449A (fr) * 1957-06-18 1959-05-25 Prec Mecanique Perfectionnements apportés aux variateurs d'avance, du genre de ceux pour pompes à combustible

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1029026A (en) * 1911-11-10 1912-06-11 Charles Henry Newman Spark-regulator for explosion-engines.
US1579287A (en) * 1924-11-08 1926-04-06 Duten Maurice Sparking-advance control device for explosion engines
US1957181A (en) * 1932-02-27 1934-05-01 Edward W Mitchel Automatic valve timing device
US2722813A (en) * 1952-02-09 1955-11-08 Bosch Gmbh Robert Automatic phase alteration couplings for shafts

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3045458A (en) * 1960-04-27 1962-07-24 Gen Motors Corp Distributor
US3098366A (en) * 1961-11-16 1963-07-23 Holley Carburetor Co Ignition distributor
DE1244471B (de) * 1962-11-26 1967-07-13 Kloeckner Humboldt Deutz Ag Vorrichtung zur drehzahlabhaengigen Winkelverstellung zweier fluchtender Wellen, insbesondere fuer den Antrieb von Einspritzpumpen
US3601109A (en) * 1969-06-25 1971-08-24 Caterpillar Tractor Co Engine fuel pump timing mechanism
US4177773A (en) * 1977-12-27 1979-12-11 Cribbs John R Damped automatic variable valve timing device for internal combustion engines
EP0386455A1 (de) * 1989-03-04 1990-09-12 Robert Bosch Gmbh Einspritzzeitpunktversteller von Brennkraftmaschinen
US6196927B1 (en) * 1994-03-03 2001-03-06 Bayerische Motoren Werke Aktiengesellschaft Arrangement for relative adjustment of rotation angle of a control shaft of an internal combustion engine

Also Published As

Publication number Publication date
DE1241663B (de) 1967-06-01

Similar Documents

Publication Publication Date Title
US2977778A (en) Automatic timing device for engines
GB1395384A (en) Fuel injection pumps for internal combustion engines
US3091231A (en) Fuel injection pumps
US4389985A (en) Apparatus for establishing and terminating connections between crankshafts
US4362139A (en) Vibration absorber for centrifugal governor
US3326193A (en) Internal combustion engine
US3791171A (en) Centrifugal governor particularly for altering the moment of injection start in diesel engines
KR830006580A (ko) 속도에 감응하여 두 샤프트의 상대회전 위치를 변화시키는 타이밍장치
GB1485490A (en) Fuel injection pumping apparatus
US3473409A (en) Injection timer with damping means between crankshaft and injection pump
US2829630A (en) Control device for fuel injection pumps
US4263881A (en) Vibration absorber for centrifugal governor
US3709001A (en) Hydraulic-type fuel-injection automatic timer
US3478727A (en) Rotary combustion engine
US3229677A (en) Engines, pumps or the like
US4497303A (en) Fuel injection timing device for internal combustion engines
JPS5670147A (en) Flywheel device
GB1262542A (en) Rotary fuel-injection pump
US2793514A (en) Automatically adjustable coupling
US3601109A (en) Engine fuel pump timing mechanism
US2855914A (en) Injection pump drives
ATE11689T1 (de) Fliehkraftgeregelter eins pritzzeitpunktversteller.
US2589496A (en) Centrifugal regulator for automatically controlling the action moment of apparatus of variable rotating speed
US2411653A (en) Internal-combustion engine
US2715890A (en) Centrifugal governor, especially for the regulation of the instant of injection in combustion engines