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
  • F16F15/30—Flywheels
  • F16F15/315—Flywheels characterised by their supporting arrangement, e.g. mountings, cages, securing inertia member to shaft
  • F16F15/3153—Securing inertia members to the shafts
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
  • Y02T10/00—Road transport of goods or passengers
  • Y02T10/60—Other road transportation technologies with climate change mitigation effect
  • Y02T10/62—Hybrid vehicles

Definitions

• the invention relates to a flexible flywheel of a mobility device.
• the invention also relates to a mobility device comprising such a flywheel in which the device is a motor vehicle with a thermal engine, which can be hybrid.
• a flexible flywheel usually consists of a flywheel, a hub, and a flexible plate.
• the hub is able to be connected to a crankshaft of an engine by means of screws.
• the flexible plate is attached to the inertia mass and to the hub.
• An idea underlying the invention is to provide a flexible flywheel to solve the above problems.
• the invention provides a flexible flywheel of a mobility device comprising an inertia mass, at least one flexible plate, and a hub capable of being connected to a drive shaft, the plate connecting the mass of hub inertia in which a rigidity of the flywheel is locally reinforced at a location of a connection between the plate and the hub.
• the flexible flywheel may have one or more of the features described below:
• Reinforcement panel forms an elastic washer having a conical shape at rest capable of flattening under pressure; in one example, the reinforcing panel is able to flatten under axial pressure, that is to say under pressure directed along an axis coaxial with an axis around which the reinforcing panel is formed;
• - Panel has a cross section in the form of stairs, of greater thickness near the hub;
• the outer contour forms petals that are identical or different from one another, distributed circumferentially irregularly or regularly; - the reinforcing ring extends radially between 1/4 and 1/3 of a maximum diameter over which the flexible plate extends;
• the flexible plate has a radially localized curvature between the reinforcing ring and the inertia mass.
• the curvature is formed radially above the reinforcing ring;
• the first plate is domed and the second plate extends in a plane
• the reinforcing ring has a minimum thickness of 1 to 3 times a normal thickness of the flexible plate
• the reinforcing ring has a maximum thickness of up to 3 times a normal thickness of the flexible plate.
• the subject of the invention is also a mobility device comprising a flywheel as described above, in which the mobility device is a motor vehicle.
• FIG.l shows a partial cross section of a flexible flywheel, according to a first embodiment of the invention
• FIG. 2 shows a partial perspective view of the flexible flywheel according to [Fig. 1];
• FIG. 3 shows a reinforcing ring of the flexible flywheel according to [Fig. 1];
• FIG. 4 shows a partial cross section of a flexible flywheel, according to a second embodiment of the invention.
• FIG. 5 shows a partial perspective view of the flexible flywheel according to [Fig. 4];
• FIG. 6 shows a partial cross section of a flexible flywheel, according to a third embodiment of the invention.
• FIG. 7 shows a partial perspective view of the flywheel according to the third embodiment of the invention.
• FIG. 8 shows a partial cross section of a flexible flywheel, according to a fourth embodiment of the invention
• FIG. 9 shows an elastic ring of the flexible flywheel according to the embodiment of [Fig. 8];
• FIG. 10 shows part of the flexible flywheel according to the embodiment of [Fig. 8];
• FIG. 11 shows a reinforcing ring of a flexible flywheel, according to a fifth embodiment of the invention.
• FIG. 12 shows a partial perspective view of the flexible flywheel, according to the fifth embodiment of the invention.
• FIG. 13 shows a partial cross section of a flexible flywheel according to [Fig. 12];
• FIG. 14 shows a partial perspective view of the flexible flywheel, according to a sixth embodiment of the invention.
• FIG. 15 shows a partial cross section of a flexible flywheel according to [Fig. 14];
• FIG. 16 schematically shows a flexible flywheel with a reinforcing ring, according to a seventh embodiment of the invention.
• FIG. 17 shows a flexible flywheel according to an eighth embodiment of the invention in a first configuration
• FIG. 18 shows a flexible flywheel according to the eighth embodiment of the invention in a second configuration
• FIG. 19 shows a reinforcing ring of a flexible flywheel in a third position, according to a tenth embodiment of the invention.
• FIG. 20 shows a reinforcing ring of a flexible flywheel in a fourth position, according to an eleventh embodiment of the invention.
• FIG. 21 shows the reinforcing ring according to [Fig. 19] or according to [Fig. 20] in a fifth position.
• the [Fig. 1] and [Fig. 2] illustrate part of a flexible flywheel 1 according to a first embodiment of the invention.
• the flywheel 1 has an inertia mass 2, a hub 3, a first flexible plate 4 and a second flexible plate 5.
• the first flexible plate 4 and the second flexible plate 5 are connected together at their outer end while being connected to the inertia mass 2 by at least one rivet such as 6.
• the first plate 4 and second plate 5 are also connected together while being connected to hub 3 by means of rivets (not shown in this figure).
• a first reinforcing ring 7 is interposed axially between the first plate 4 and the second plate 6.
• the first plate 4, second plate 5 and first reinforcing ring 7 assembly is clamped between the hub 3 and a support washer 8.
• the first reinforcing ring 7 has an outer diameter measured from an outer peripheral edge of the first reinforcing ring 7 which extends beyond that delimited by the hub 3 and below that delimited by the first plate 4 and / or the second plate 5.
• this first reinforcing ring 7 has an annular shape extending in a plane perpendicular to the X axis of rotation of the flywheel 1. It has riveting orifices 12 and passage orifices 13 of larger size. diameter.
• the riveting holes 12 allow the passage of rivets for fixing the first reinforcing ring 7 to the hub 3.
• the passage holes 13 are arranged so as to be aligned with other passage holes 14 formed by the hub 3 of so as to allow the passage of a tool.
• each of the flexible plates 4 and 5 has a zone of curvature such as 9.
• each of the plates 4 and 5 has a first planar section 10 extending in a first plane and a second planar section 11 extending. in a second plane, the first plane, and the second plane being mutually parallel and offset axially with respect to one another.
• an oblique section 12 connecting the two flat sections 10 and 11.
• the two flexible plates 4 and 5 are spaced from each other at their internal radial end close to the hub 3 by the first reinforcing ring 7.
• the two flexible plates 4 and 5 are joined at their outer radial end close to the inertia mass 2.
• FIG. 4 and [Fig. 5] illustrate part of a flexible flywheel 1a according to a second embodiment of the invention.
• This flywheel also has a flywheel mass 2a and a hub 3a.
• This flywheel differs from that of the first embodiment in that the flexible plates 4a and 5a each extend in a plane and are parallel to each other.
• the two flexible plates 4a and 5a are spaced apart from each other at their outer radial periphery close to the hub 3a and are contiguous at their outer radial periphery close to the inertia mass 2a.
• the flexible plate 5a is therefore slightly inclined at its outer radial periphery. Between the two flexible plates 4a and 5a is interposed the first reinforcing ring 7a.
• FIG. 6 and [Fig. 7] illustrate part of a flexible flywheel lb according to a third embodiment of the invention.
• This flywheel lb also has an inertia mass 2b and a hub 3b.
• This flywheel lb differs from that of the first embodiment in that the flexible plates 4b and 5b are spaced from each other by a distance d which is constant throughout. of each of the flexible plates 4b and 5b.
• a second reinforcing ring 15 is placed between the two flexible plates 4b and 5b. This second reinforcing ring 15 is of identical thickness to that of the first reinforcing ring 7b.
• the [Fig. 8], [Fig. 9] and [Fig. 10] illustrate part of a flywheel 1c according to a fourth embodiment of the invention.
• This flywheel also has a flywheel 2c, a hub 3c, and a first and second flexible plate 4c and 5c.
• This flywheel differs from the flywheel lb in that a disc 16 of resilient material is disposed between the first reinforcing ring 7c and the second reinforcing ring 15c.
• the disc 16 is placed with its internal peripheral periphery disposed around the first reinforcing ring 7c while being attached thereto.
• the second reinforcing ring 15c is placed adjacent to the outer peripheral periphery of the disc 16.
• FIG. 11 The [Fig. 11], [Fig. 12] and [Fig. 13] illustrate a fifth embodiment of the invention.
• FIG. 11 There is shown a partial sectional view of a flywheel 1d which includes a flywheel mass 2d and a hub 3d. Between the inertia mass 2d and the hub 3d is interposed a first reinforcing ring 7d. Unlike the first reinforcing rings 7, 7a, 7b, 7c described in the previous embodiments, this first reinforcing ring 7d has a variable thickness.
• this first reinforcing ring 7d is thicker at its inner radial periphery close to the hub 3d than at its outer radial periphery close to the inertia mass 2d.
• the first reinforcing ring 7d has a cross section in the form of stairs, that is to say that different thicknesses follow one another in slices one after the other. In this example, three franks of thickness follow one another.
• a single flexible plate 4d is present on which the first reinforcing ring 7d rests.
• FIG. 14 and [Fig. 15] illustrate a sixth embodiment of the invention.
• these figures illustrate a flexible flywheel le with a 2nd flywheel mass and a 3rd hub.
• this flywheel presents it as for the flywheel ld a single flexible plate 4th on which is placed a first reinforcing ring 7th.
• This first reinforcement ring 7e may have an external peripheral contour of constant diameter or else non-circular as illustrated in [FIG. 16].
• FIG. 16 is schematically illustrated a particular shape of the outer contour of a first reinforcing ring 7f. This outline is irregular.
• the [Fig. 17] and [Fig. 18] illustrate another variant embodiment of the invention in which a sealing washer 17 is disposed to bear against a support 18 such that, at rest, a clearance j exists between the sealing washer 17 and the first reinforcing ring 7f [Fig. 17] and contact occurs during operation between the sealing washer and the reinforcing ring 7f.
• the [Fig. 19] and [Fig. 20] respectively illustrate a reinforcing ring 19 and 20 prior to its installation.
• the reinforcing ring 19 has a section along a plane in which the X axis extends forming a frustoconical cone.
• the reinforcing ring 20 has a section along a plane in which the X axis extends forming a frustoconical cone. At the top of the frustoconical cone, legs 21 extend.
• FIG. 21 is illustrated a flexible flywheel having a 3rd hub and a 4th flexible plate.
• reinforcing rings 19 or 20 When such reinforcing rings 19 or 20 are in place, that is to say they are positioned resting on the flexible plate 4e, they have a flattened shape as illustrated in [Fig. 21]. This flattened shape results from their elasticity.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Acoustics & Sound (AREA)
• Aviation & Aerospace Engineering (AREA)
• Mechanical Engineering (AREA)
• Mechanical Operated Clutches (AREA)
• Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Applications Claiming Priority (2)

Publications (1)

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• 2019
  • 2019-12-20 FR FR1915348A patent/FR3105330B1/fr active Active
• 2020
  • 2020-12-17 CN CN202320306007.0U patent/CN219827599U/zh active Active
  • 2020-12-17 WO PCT/EP2020/086835 patent/WO2021123027A1/fr unknown
  • 2020-12-17 EP EP20830192.9A patent/EP4077966A1/fr active Pending
  • 2020-12-17 CN CN202090001018.2U patent/CN218625251U/zh active Active

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