WO1999042742A3 - Engine balance apparatus - Google Patents

Engine balance apparatus Download PDF

Info

Publication number
WO1999042742A3
WO1999042742A3 PCT/CA1999/000071 CA9900071W WO9942742A3 WO 1999042742 A3 WO1999042742 A3 WO 1999042742A3 CA 9900071 W CA9900071 W CA 9900071W WO 9942742 A3 WO9942742 A3 WO 9942742A3
Authority
WO
WIPO (PCT)
Prior art keywords
void
gear
counterweight
filled
engine
Prior art date
Application number
PCT/CA1999/000071
Other languages
French (fr)
Other versions
WO1999042742A2 (en
Inventor
Brad E Watson
David M Pascoe
Original Assignee
Tesma Int Inc
Brad E Watson
David M Pascoe
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 Tesma Int Inc, Brad E Watson, David M Pascoe filed Critical Tesma Int Inc
Priority to CA002321492A priority Critical patent/CA2321492A1/en
Publication of WO1999042742A2 publication Critical patent/WO1999042742A2/en
Publication of WO1999042742A3 publication Critical patent/WO1999042742A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/22—Compensation of inertia forces
    • F16F15/26—Compensation of inertia forces of crankshaft systems using solid masses, other than the ordinary pistons, moving with the system, i.e. masses connected through a kinematic mechanism or gear system
    • F16F15/264—Rotating balancer shafts
    • F16F15/265—Arrangement of two or more balancer shafts

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Gears, Cams (AREA)
  • Gear Transmission (AREA)

Abstract

An engine balancing apparatus has a housing assembly mounted to a vehicle engine. The housing assembly has spaced apart endwalls and two parallel extending support shafts connected to the endwalls. A first counterweight is rotatably mounted concentrically about a first of the support shafts. The first counterweight has a first gear, a lead filled first void and a phenolic filled second void diametrically opposed from said first void. A second counterweight is rotatably mounted concentrically about a second of said support shafts. The second counterweight has a second gear, a lead filled third void and a phenolic filled fourth void diametrically opposed from the third void. The second gear in is driven engagement with the first gear for counter rotation therewith. The first support shaft is positioned relative to the crankshaft of the engine for drivingly engaging the first gear. Each of the counterweights has a center of gravity offset from an axis of rotation whereby as the counterweights counter rotate an inertial force is generated which has a canceling effect on inertial forces generated by operation of the vehicle engine.
PCT/CA1999/000071 1998-02-18 1999-02-04 Engine balance apparatus WO1999042742A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002321492A CA2321492A1 (en) 1998-02-18 1999-02-04 Engine balance apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7642598P 1998-02-18 1998-02-18
US60/076,425 1998-02-18

Publications (2)

Publication Number Publication Date
WO1999042742A2 WO1999042742A2 (en) 1999-08-26
WO1999042742A3 true WO1999042742A3 (en) 1999-10-14

Family

ID=22131926

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA1999/000071 WO1999042742A2 (en) 1998-02-18 1999-02-04 Engine balance apparatus

Country Status (2)

Country Link
CA (1) CA2321492A1 (en)
WO (1) WO1999042742A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9912536D0 (en) * 1999-05-29 1999-07-28 Simpson International Uk Limit A balance shaft assembly
FR2823279B1 (en) * 2001-04-09 2005-11-11 Renault Sas BALANCING SHAFT COMPRISING CYLINDRICAL BALANCING BLOCKS PRODUCED BY OVERMOLDING
EP2354590B1 (en) 2010-02-09 2018-09-05 FPT Industrial S.p.A. Counter rotating mass system for balancing the vibrations produced by a vehicle engine
FR3038025A1 (en) * 2015-06-29 2016-12-30 Skf Ab BALANCING SHAFT MODULE OF A COMBUSTION ENGINE AND COMBUSTION ENGINE

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3667317A (en) * 1970-08-26 1972-06-06 Int Harvester Co Balancer
US4802450A (en) * 1986-02-22 1989-02-07 Triumph Motorcycles (Coventry) Limited Balancer for internal combustion engine
FR2720464A1 (en) * 1994-05-31 1995-12-01 Peugeot Mounting for contra=rotating balancing shafts in IC engine
EP0789165A1 (en) * 1996-02-06 1997-08-13 Honda Giken Kogyo Kabushiki Kaisha Rotary shaft lubricating structure
EP0789164A1 (en) * 1996-02-06 1997-08-13 Honda Giken Kogyo Kabushiki Kaisha Balancer shaft supporting structure in engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3667317A (en) * 1970-08-26 1972-06-06 Int Harvester Co Balancer
US4802450A (en) * 1986-02-22 1989-02-07 Triumph Motorcycles (Coventry) Limited Balancer for internal combustion engine
FR2720464A1 (en) * 1994-05-31 1995-12-01 Peugeot Mounting for contra=rotating balancing shafts in IC engine
EP0789165A1 (en) * 1996-02-06 1997-08-13 Honda Giken Kogyo Kabushiki Kaisha Rotary shaft lubricating structure
EP0789164A1 (en) * 1996-02-06 1997-08-13 Honda Giken Kogyo Kabushiki Kaisha Balancer shaft supporting structure in engine

Also Published As

Publication number Publication date
CA2321492A1 (en) 1999-08-26
WO1999042742A2 (en) 1999-08-26

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