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WO2018172549A1 - Mécanisme de groupe motopropulseur à plaque métallique - Google Patents

Mécanisme de groupe motopropulseur à plaque métallique Download PDF

Info

Publication number
WO2018172549A1
WO2018172549A1 PCT/EP2018/057537 EP2018057537W WO2018172549A1 WO 2018172549 A1 WO2018172549 A1 WO 2018172549A1 EP 2018057537 W EP2018057537 W EP 2018057537W WO 2018172549 A1 WO2018172549 A1 WO 2018172549A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal plate
metal
powertrain mechanism
foam part
metal foam
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.)
Ceased
Application number
PCT/EP2018/057537
Other languages
English (en)
Inventor
Tolga CAKMAK
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.)
Valeo Otomotiv Sanayi ve Ticaret AS
Original Assignee
Valeo Otomotiv Sanayi ve Ticaret AS
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 Valeo Otomotiv Sanayi ve Ticaret AS filed Critical Valeo Otomotiv Sanayi ve Ticaret AS
Publication of WO2018172549A1 publication Critical patent/WO2018172549A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/70—Pressure members, e.g. pressure plates, for clutch-plates or lamellae; Guiding arrangements for pressure members

Definitions

  • the present invention relates to a powertrain mechanism for providing movement transmission between the engine and the gearbox in vehicles having internal combustion engine.
  • This powertrain mechanism is a system which provides clutching as a result of compressing and rubbing of the friction material, provided in general on a disc, between two metal plates which rotate essentially concentrically. These two metal plates are preferably pressure plate and flywheel.
  • the compression process is realized by Belleville type diaphragm spring or helical springs by means of support from the clutch cover.
  • the present invention relates to a powertrain mechanism, for eliminating the above mentioned disadvantages and for bringing new advantages to the related technical field.
  • An object of the present invention is to provide a powertrain mechanism where the weight is decreased and where the cooling performance is increased.
  • the present invention is a powertrain mechanism for providing movement transmission between the engine and the gear box in vehicles having internal combustion engine, and having at least one metal plate. Accordingly, said metal plate comprises at least one metal foam part.
  • the metal foam part is aluminum foam.
  • the metal foam part is provided in the form of an open porous metal foam structure.
  • air channels are obtained inside the metal foam part.
  • air circulation and cooling are provided inside the metal plate during rotation, and at the same time, the total surface area of the metal plate is increased and performance of heat transfer by means of convection is increased.
  • the metal foam part comprises at least one air intake surface.
  • the air intake surface is provided in the vicinity of the outer diameter of the metal plate.
  • air intake-output during rotation of the metal plate is facilitated.
  • the air intake surface is provided in the vicinity of the inner diameter of the metal plate.
  • air intake-output during rotation of the metal plate is facilitated.
  • the powertrain mechanism comprises a friction clutch. In a preferred embodiment, the powertrain mechanism comprises a friction disc.
  • the friction disc comprises at least one friction lining able to rub onto a frictional surface of a metal plate.
  • the metal plate is a flywheel.
  • the cooling performance of the flywheel is increased, and at the same time, the weight of the flywheel is decreased.
  • the flywheel has a circular body part around an axis of revolution.
  • the body part of the flywheel comprises an inner gap, the metal foam part being located into the inner gap.
  • the inner gap extends according a geometrical plane which is perpendicular to the axis of revolution.
  • the flywheel comprises a frictional surface able to be in contact with a friction disc.
  • the metal plate is a pressure plate.
  • the pressure plate has a circular body part around an axis of revolution.
  • the body part of the pressure plate comprises an inner gap, the metal foam part being located into the inner gap.
  • the inner gap extends according a geometrical plane which is perpendicular to the axis of revolution.
  • the pressure plate comprises a frictional surface able to be in contact with a friction disc.
  • a further object of the invention is to propose a friction clutch comprising at least a cover, a diaphragm spring and a pressure plate as defined above, said pressure plate comprising a frictional surface able to be in contact with a friction disc.
  • This friction clutch according to the further object of the invention has the advantage of increasing the heat convection surface inside of the pressure plate without changing the external envelope of the friction clutch.
  • FIG 1 a representative cross sectional view of an exemplary powertrain mechanism of the prior art is given.
  • Figure 2a and 2b a representative isometric view of the flywheel defined as metal plate in the subject matter powertrain mechanism and a representative cross sectional view of this view are given.
  • the powertrain mechanism 10 disclosed in the prior art and in the subject matter invention essentially has at least two metal plates 20 provided concentrically.
  • a friction disc 30 is provided between said metal plates 20, and friction lining is provided on the friction disc 30.
  • the friction disc 30 is compressed between metal plates 20, and movement transmission is provided.
  • the powertrain mechanism 10 comprises a friction clutch 40, friction disc 30 and a flywheel 20a.
  • the friction clutch 40 comprising a cover 41 , a diaphragm spring 42 and a pressure plate 20b.
  • the metal plates 20 has a body 21 and an inner gap 22 provided inside said body 21 .
  • the metal foam part 23 is provided in the form of an open porous metal foam structure (open cell). Thus, pluralities of air channels (not illustrated in the figure) are obtained in the metal foam part 23.
  • the weight of the metal plate 20 is reduced.
  • the cooling performance of the metal plate 20 is increased.
  • air circulation is provided therein and cooling thereof is facilitated.
  • the surface area of the metal plate 20 is increased and heat transfer by means of convection is provided in a more effective manner.
  • the metal foam part 23 is opened to the outer surface of the metal plate 20. In other words, it is possible to access the metal foam part 23 from the outer surface of the metal plate 20.
  • the part of the metal foam part 23 which is on the outer surface of the metal plate 20 is defined as an air intake surface 231.
  • the air, arriving at the air intake surface 231 can enter into the air channels formed inside the metal foam part 23.
  • the air intake surface 231 is provided in the vicinity of the outer diameter of the metal plate 20.
  • the air intake surface 231 is provided in the vicinity of the inner diameter of the metal plate 20.
  • the metal foam part 23 is made of aluminum foam. Thanks to the metal form part 23, the metal plate 20 gains vibration dampening property. Thus, a part of the vibrations occurring during movement transmission is dampened. Moreover, the noise occurring together with vibration is also reduced.
  • the metal plate 20 is a flywheel 20a.
  • the flywheel 20a is cooled in an effective manner.
  • the flywheel 20a has a circular body part around an axis of revolution.
  • the flywheel 20a comprises a frictional surface able to be in contact with the friction disc 30 and the frictional surface is perpendicular to the axis of revolution.
  • the flywheel 20a has a inner gap 22 .
  • the inner gap 22 extends according a geometrical plane which is perpendicular to the axis of revolution.
  • the inner gap 22 has an annular form.
  • the metal foam part 23 is made of aluminum foam.
  • the metal plate 20b is a pressure plate 20b.
  • the pressure plate 20b is cooled in an effective manner.
  • the pressure plate 20b has a circular body part around an axis of revolution.
  • the pressure plate 20b comprises a frictional surface able to be in contact with the friction disc 30 and the frictional surface is perpendicular to the axis of revolution.
  • the pressure plate 20b has an inner gap 22 .
  • the inner gap 22 extends according a geometrical plane which is perpendicular to the axis of revolution.
  • the inner gap 22 has an annular form.
  • the metal foam part 23 which at least partially fills in said inner gap 22 of the pressure plate 20b.
  • the metal foam part 23 is made of aluminum foam.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

La présente invention concerne un mécanisme de groupe motopropulseur (10) pour fournir une transmission de mouvement entre le moteur et la boîte de vitesses dans des véhicules ayant un moteur à combustion interne, et ayant au moins une plaque métallique (20). En tant qu'amélioration, ladite plaque métallique (20) comprend au moins une partie en mousse métallique (23).
PCT/EP2018/057537 2017-03-24 2018-03-23 Mécanisme de groupe motopropulseur à plaque métallique Ceased WO2018172549A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TRA201704475 2017-03-24
TR201704475 2017-03-24

Publications (1)

Publication Number Publication Date
WO2018172549A1 true WO2018172549A1 (fr) 2018-09-27

Family

ID=61911540

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/057537 Ceased WO2018172549A1 (fr) 2017-03-24 2018-03-23 Mécanisme de groupe motopropulseur à plaque métallique

Country Status (1)

Country Link
WO (1) WO2018172549A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006057485A1 (de) * 2006-12-06 2008-06-12 Schaeffler Kg Mehrteiliger Synchronträger-Körper mit Metallschaum
AT504848A1 (de) * 2007-02-08 2008-08-15 Tectos Oeg Wellenverbindung für einen antriebsstrang
DE102007053836A1 (de) * 2007-11-12 2009-05-14 SGF SüDDEUTSCHE GELENKSCHEIBENFABRIK GMBH & CO. KG Vorrichtung zum schwingungsreduzierten Übertragen von Drehmomenten
WO2016007980A1 (fr) * 2014-07-17 2016-01-21 Miba Frictec Gmbh Lamelle à friction

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006057485A1 (de) * 2006-12-06 2008-06-12 Schaeffler Kg Mehrteiliger Synchronträger-Körper mit Metallschaum
AT504848A1 (de) * 2007-02-08 2008-08-15 Tectos Oeg Wellenverbindung für einen antriebsstrang
DE102007053836A1 (de) * 2007-11-12 2009-05-14 SGF SüDDEUTSCHE GELENKSCHEIBENFABRIK GMBH & CO. KG Vorrichtung zum schwingungsreduzierten Übertragen von Drehmomenten
WO2016007980A1 (fr) * 2014-07-17 2016-01-21 Miba Frictec Gmbh Lamelle à friction

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