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Valeo — Technical Presentation (2001)
19 slides from Valeo's technical presentation, 2001
Slide 1: Bonded Tripod: Innovations for New Generations of Clutches
BONDED TRIPOD INNOVATIONS FOR NEW GENERATIONS OF CLUTCHES INTERNATIONAL GRANDS PRIX FOR TECHNICAL INNOVATION EQUIP AUTO 2001
Slide 2: Bonded Tripod
BONDED TRIPOD INNOVATIONS FOR NEW GENERATIONS OF CLUTCHES 2001
Slide 3: Bonded Tripod: two innovations and five benefits
BONDED TRIPOD INNOVATIONS FOR NEW GENERATIONS OF CLUTCHES A clutch friction disc optimized around two innovations: The Tripod disc Specific bonding The Bonded Tripod offers: Ø Enhanced driving comfort Ø Longer clutch life Ø Greater mechanical resistance Ø More compact transmission design Ø Easier re
Slide 4: First innovation: The Tripod Disc
First innovation: The Tripod Disc TRIPOD DISC (patented technology) DRAPO DISC (conventional technology) A new disc shape, facings support 2001
Slide 5: Second innovation: specific bonding
Second innovation: specific bonding BONDED FACINGS (patented technology) RIVETED FACINGS (conventional technology) A new technology for binding facings onto the disc Rivet 2001
Slide 6: Enhanced gear shifting comfort
Enhanced gear shifting comfort The reduced thickness of the facings (up to -1.6 mm) decreases the inertia (up to 14%) and therefore provides better protection to the gear box synchronizers. The Bonded Tripod contributes to improving gear shifting comfort. Inertia (%) 104 102 100 6.6mm 6.6 mm 98 Conv
Slide 7: Enhanced comfort during vehicle start
Enhanced comfort during vehicle start The Tripod paddle shape offers an improved contact surface with the facings while maintaining good disc progressivity. The Bonded Tripod contributes to smooth vehicle start throughout the lifetime of the clutch. TRIPOD DISC (patented technology) DRAPO DISC (conv
Slide 8: Longer clutch life
Longer clutch life The suppression of the rivets increases the thickness of the facings to be worn. The Bonded Tripod contributes to increasing clutch life time. Compared lifetime of a 5.0 mm or 6.6 mm Bonded Tripod disc and conventional technology Thickness (in mm) 6,8 6,6 6.6mm 6.6 mm 6,4 6,2 Conv
Slide 9: Greater mechanical resistance
Greater mechanical resistance The bonding process on a larger facing contact surface enables mechanical stress to be more evenly distributed. Compared with riveted solution, the Bonded Tripod solution offers greater clutch mechanical resistance. The bonding surface is five times greater for the Bond
Slide 10: More compact transmission design
More compact transmission design The Bonded Tripod offers up to 1.6 mm reduction in axial dimension. CONVENTIONAL TECHNOLOGY BONDED TRIPOD 2.9 1.8 2.1 6.6 5.0 2.1 2.9 1.2 Gain of 1.6mm 2001
Slide 11: Easier recycling of disc components
Easier recycling of disc components The innovations offered by the Bonded Tripod are: Ø a 55% reduction in the friction material to be recycled, leading to a reduction in elimination costs; Ø easier separation of components (by heating the Bonded Tripod to over 600°C) making it easy to industrialize
Slide 12: Appendix
BONDED TRIPOD APPENDIX: - The friction disc in its environment - The chain of benefits of the Bonded Tripod ’s innovations - The key points of the development and the manufacturing process
Slide 13: The Friction disc in its environment
The Friction disc in its environment Flywheel Cover Damper Fork Bearing Friction disc: Linked with the primary shaft of the gearbox, it ensures a smooth Gear Box engine torque transfer 2001
Slide 14: The chain of benefits of the Bonded Tripod's innovations
The chain of benefits of the Bonded Tripod ’s innovations Direct bonding of the facings New patented design for the onto the cushion deflection disc- cushion deflection disc-back back Overhang distance Facing surface Reduction of housing Better stress decreased support increased thickness (no rivets
Slide 15: Key points of development and manufacturing process
The key points of the development and the manufacturing process Ø 1/ Bonding on a disc which has a spring function. Ø 2/ Obtaining a high degree of adherence between the facings and the metallic disc, whatever the vehicle environment, with only 10% of the cushion deflection disc surface available fo
Slide 16: Bonding on a metallic disc: tripod size optimization
The key points of the development and the manufacturing process 1/ Bonding on a metallic disc which has a spring function Tripod size optimization The paddle shape of the new patented cushion deflection disc was optimized, using finite element analysis, in order to obtain the iso-deformation areas r
Slide 17: Bonding on a metallic disc: glue shape optimization
The key points of the development and the manufacturing process 1/ Bonding on a metallic disc which has a spring function Glue shape optimization The glue shape was optimized in order to eliminate stress due to bonded surface deformation A new patented design for the glue shape The creation of the g
Slide 18: Obtaining high adherence between facings and disc
The key points of the development and the manufacturing process 2/ Obtaining a high degree of adherence between the facings and metallic disc, whatever the vehicle environment, with only 10% of the cushion deflection disc surface available for bonding Specific treatment for the two facings to obtain
Slide 19: Managing the difference in dilation between materials
The key points of the development and the manufacturing process 3/ Managing the difference in dilation between the materials while maintaining compatibility with the cushion deflection function (control internal stress) A new process was developed to control internal stress while curing the glue und