WO2006002709A1 - Mecanisme d'entrainement enveloppant de moteurs a combustion interne pour unites auxiliaires couplees par un raccord de transmission de force - Google Patents

Mecanisme d'entrainement enveloppant de moteurs a combustion interne pour unites auxiliaires couplees par un raccord de transmission de force

Info

Publication number
WO2006002709A1
WO2006002709A1 PCT/EP2005/005110 EP2005005110W WO2006002709A1 WO 2006002709 A1 WO2006002709 A1 WO 2006002709A1 EP 2005005110 W EP2005005110 W EP 2005005110W WO 2006002709 A1 WO2006002709 A1 WO 2006002709A1
Authority
WO
WIPO (PCT)
Prior art keywords
drive
force
torque fluctuations
internal combustion
wraparound
Prior art date
Application number
PCT/EP2005/005110
Other languages
English (en)
Inventor
Rainer Pflug
Bernd Hartmann
Original Assignee
Schaeffler Kg
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 DE200410031475 external-priority patent/DE102004031475A1/de
Application filed by Schaeffler Kg filed Critical Schaeffler Kg
Publication of WO2006002709A1 publication Critical patent/WO2006002709A1/fr

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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • 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
    • F16F15/20—Suppression of vibrations of rotating systems by favourable grouping or relative arrangements of the moving members of the system or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • 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
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
    • 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
    • F16H—GEARING
    • F16H35/00—Gearings or mechanisms with other special functional features
    • F16H2035/003—Gearings comprising pulleys or toothed members of non-circular shape, e.g. elliptical gears

Definitions

  • the invention relates to a wraparound drive of internal combustion en ⁇ gines for auxiliary assemblies which drive or are driven with a force- transmitting connection and have periodically reoccurring torque fluctua- tions, in particular for piston compressors.
  • Control drives of internal combustion engines having a crankshaft driving wheel, at least one camshaft driven wheel and a chain or a toothed belt or else other assembly drives which are present on internal combustion en ⁇ gines are subjected to vibrational changes on account of torque fluctua ⁇ tions or angular velocity changes, which vibrational changes can lead to audible noises in resonant ranges. Associated with this are increased fric- tional forces which can impair the service life of the wraparound drive and its efficiency.
  • the driving or driven wheel of the auxiliary assembly that is to say, for example, of an air conditioning compressor or of a power steering pump, to be configured out of center in such a way that the nonuniformity which is imparted to the drive as a result compensates at least partially for the torque fluctuations, which can be brought about in the simplest case by the fact that the out of center wheel has elevations which are distributed equidistantly, the number of elevations corresponding to the frequency of the torque fluctuations.
  • fig. 1 shows a section through an air conditioning compressor having torque compensation
  • fig. 2 shows a diagram of the force at the driving wheel plotted against the rotational angle
  • fig. 3 shows a view of the out of center driving wheel, shown in an exaggerated manner for illustrative reasons.
  • Fig. 1 shows an air conditioning compressor, in the case of which the movement of the pistons 1 causes periodically reoccurring torque fluctua- tions in accordance with the number of pistons, which torque fluctuations can also not be suppressed by the various axial bearings 2 and 3 and the radial bearings 4, 5 and 6.
  • the driven wheel 7 which is configured as a Poly V pulley shows the force profile, which is indicated diagrammatically in fig. 2 against the rotational angle, with periodic fluctuations in accor- dance with the five pistons which are provided here. In order to compen ⁇ sate for these torque fluctuations, the driven wheel 7 is configured to be out of center, as is shown in an exaggerated manner in a side view in fig. 3.
  • the wheel 7 is arranged on the shaft 11 of the air conditioning compressor in such a way that there is a defined angular offset between the maxima of the force fluc ⁇ tuations in fig. 2 and the position of the peaks of the raised portions 8, in order for it to be possible to achieve optimum drive smoothing by means of such a leading or trailing arrangement.
  • the configuration of the driving wheel 7 of the air conditioning compressor as an out of center compensa ⁇ tion wheel makes synchronization possible with respect to the periodically reoccurring torque fluctuations caused by the piston movements of the air conditioning compressor, although drive is effected in a manner which is subject to slip and is unsynchronized with respect to the internal combus ⁇ tion engine.

Abstract

L'invention concerne un mécanisme d'entraînement enveloppant de moteur à combustion interne destiné à des unités auxiliaires, qui entraînent ou sont entraînées par l'intermédiaire d'un couplage de transmission de force, et présentent des fluctuations récurrentes de couple, en particulier des compresseurs à piston. La roue menante ou menée de l'unité auxiliaire présente une configuration décentrée de manière que la non-uniformité résultante transmise au mécanisme d'entraînement compense au moins partiellement les fluctuations de couple.
PCT/EP2005/005110 2004-06-30 2005-05-12 Mecanisme d'entrainement enveloppant de moteurs a combustion interne pour unites auxiliaires couplees par un raccord de transmission de force WO2006002709A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102004031475.6 2004-06-30
DE200410031475 DE102004031475A1 (de) 2004-06-30 2004-06-30 Umschlingungstrieb von Brennkraftmaschinen für kraftschlüssig angekoppelte Nebenaggregate
US59268604P 2004-07-30 2004-07-30
US60/592,686 2004-07-30

Publications (1)

Publication Number Publication Date
WO2006002709A1 true WO2006002709A1 (fr) 2006-01-12

Family

ID=35782480

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/005110 WO2006002709A1 (fr) 2004-06-30 2005-05-12 Mecanisme d'entrainement enveloppant de moteurs a combustion interne pour unites auxiliaires couplees par un raccord de transmission de force

Country Status (1)

Country Link
WO (1) WO2006002709A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9341243B2 (en) 2012-03-29 2016-05-17 Litens Automotive Partnership Tensioner and endless drive arrangement
EP3719351A1 (fr) 2019-04-05 2020-10-07 Leys Système d'entraînement de courroie pour réduction de vibrations mécaniques
US11174921B2 (en) 2016-09-13 2021-11-16 Litens Automotive Partnership V tensioner and endless drive arrangement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4412993A1 (de) * 1993-04-20 1994-10-27 Luk Lamellen & Kupplungsbau Schwingungsdämpfende Einrichtung
DE19520508A1 (de) * 1995-06-03 1996-12-05 Audi Ag Umschlingungstrieb
DE10121795A1 (de) * 2001-05-04 2002-11-07 Ina Schaeffler Kg Entkopplung eines Zugmitteltriebs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4412993A1 (de) * 1993-04-20 1994-10-27 Luk Lamellen & Kupplungsbau Schwingungsdämpfende Einrichtung
DE19520508A1 (de) * 1995-06-03 1996-12-05 Audi Ag Umschlingungstrieb
DE10121795A1 (de) * 2001-05-04 2002-11-07 Ina Schaeffler Kg Entkopplung eines Zugmitteltriebs

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9341243B2 (en) 2012-03-29 2016-05-17 Litens Automotive Partnership Tensioner and endless drive arrangement
US11174921B2 (en) 2016-09-13 2021-11-16 Litens Automotive Partnership V tensioner and endless drive arrangement
EP3719351A1 (fr) 2019-04-05 2020-10-07 Leys Système d'entraînement de courroie pour réduction de vibrations mécaniques

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