Malossi TORSION CONTROLLER for eng. 50 cc PIAGGIO - HONDA - KYMCO - PEUGEOT- SYM

TORSION CONTROLLER

Antifriction fifth wheel for variator contrast spring
A secret from Malossi racing department
Light, perfect: a technology extract in its simplicity.
Design and formula of the materials are registered.

Abstract from of Malossi Engineering R&D department archives

 

CVT Transmission systems

Chapter : contrast spring.

Goal

Pull down vibrations and to make the system operation stable at any rpm and temperature.

Design path

We have considered both on theoretical and practical basis all the existing fifth wheel systems: balls, rollers and radial sliding fifth wheels of metal type. All the tests gave unsatisfactory results. We have made prototypes with alternative systems, metallic type, without any positive results. Only after exhausting laboratory and racetrack tests we have eventually come to Torsion Controller design.

Thesis

The above-mentioned component solves the following problems.
During gear curve range the bushing of the movable pulley (torque drive) slides into the driven pulley in axial way along fixed pulley hub, making a small rotation which gives a torsion to the contrast spring. Sometimes the spring loses its position while frictioning on the shoe-holder plate, metal against
metal; some others, the spring remains stuck in its position causing some accidentally different contrast forces.
Second problem : centrifugal forces caused at high rpm affect the spring which consequently buckled and starts to veer as to create big vibrations, very annoying for the driver as well as dangerous for the engine and, above all, making unsteady the gear curve.

Result

We approved the project with great success after strict tests at R&D department and on racetrack on all examined scooter models.

Modellek:

• APRILIA MOJITO CUSTOM 50 2T
• APRILIA SCARABEO 50 4T (PIAGGIO C373M)
• APRILIA SCARABEO 4V 50 4T euro 2
• APRILIA SCARABEO CLASSIC 50 2T euro 4 2018-> (CA91M)
• APRILIA SCARABEO STREET 50 2T (PIAGGIO)
• APRILIA SCARABEO STREET 50 2T euro 4 2018-> (CA91M)
• APRILIA SPORTCITY ONE 50 4T (PIAGGIO C377M)
• APRILIA SPORTCITY ONE STREET 50 2T euro 2
• APRILIA SR (carb.) 50 2T LC 2004-> (PIAGGIO)
• APRILIA SR R 50 2T LC euro 4 2018-> (PIAGGIO CA81M)
• APRILIA SR R FACTORY 50 2T LC (PIAGGIO C361M)
• APRILIA SR DITECH GP1 50 2T LC (PIAGGIO C361M)
• APRILIA SR MOTARD 50 2T euro 2
• APRILIA SR MOTARD 50 2T euro 4 2018-> (CA41M)
• APRILIA SR R (carb.) 50 2T LC (PIAGGIO)
• APRILIA SR Street 50 2T LC euro 2
• APRILIA SXR 50 ie 4T euro 5 2021-> (CD32M)
• BSV DIO GP 50 (AF18E)
• BSV DIO SP 50 (AF18E)
• BSV DIO SR 50 (AF18E)
• BSV DIO ZX 50 2T 1994-> (AF34E)
• BSV DIO ZX 50 <-1993 (AF18E)
• DERBI ATLANTIS - BULLET 50 2T 2003->
• DERBI GP1 50 2T LC
• DERBI GP1 OPEN 50 2T LC
• DERBI GP1 REVOLUTION 50 2T LC
• DERBI VARIANT Sport 50 2T
• GILERA DNA 50 2T LC
• GILERA EASY MOVING 50 2T
• GILERA ICE 50 2T
• GILERA RUNNER PureJet 50 2T LC <-2005
• GILERA RUNNER PureJet 50 2T LC 2006->
• GILERA RUNNER SP 50 2T LC <-2005
• GILERA RUNNER SP 50 2T LC 2006-> (C451M)
• GILERA RUNNER 50 2T LC
• GILERA STORM 50 2T
• GILERA STALKER 50 2T
• GILERA TYPHOON 50 2T
• GILERA TYPHOON X 50 2T
• HONDA DIO ZX 50 2T 1994-> (AF34E)
• HONDA AERO NB 50 2T 1987
• HONDA BALI 50 2T
• HONDA DIO Clean 4 You 50 4T LC
• HONDA DIO G 50 2T (AF18E)
• HONDA RUCKUS 50 4T LC
• HONDA SH 50 2T 1996->
• HONDA SFX 50 2T
• HONDA SGX SKY 50 2T
• HONDA DIO SP 50 2T (AF18E)
• HONDA DIO SR 50 2T (AF18E)
• HONDA SHADOW 50 2T (AF18E)
• HONDA SXR 50 2T
• HONDA VISION 50 2T
• HONDA VISION MET IN 50 2T
• HONDA WALLAROO 50
• HONDA X8R X - X8R S 50 2T
• HONDA DIO ZX 50 2T <-1993 (AF18E)
• HSC SC 01 L 50 (AF18E)
• HSC SC 01 50 (AF18E)
• ITALJET JET SET 50 2T
• ITALJET TORPEDO 50 4T
• ITALJET TORPEDO NEW 50 2T
• KYMCO K 12 50 2T
• KYMCO AGILITY R16 50 2T euro 2 (KF10B)
• KYMCO AGILITY R16 + 50 2T euro 2 2016-> (KF10D)
• KYMCO CX 50 2T
• KYMCO DINK 50 2T
• KYMCO DINK 50 2T LC
• KYMCO DJ X 50 2T
• KYMCO DJ Y 50 2T
• KYMCO HEROISM 50 2T
• KYMCO MXer 50 2T
• KYMCO PEOPLE 50 2T
• KYMCO SNIPER 50 2T
• KYMCO SUPER 9 50 2T LC
• KYMCO TOP BOY - COBRA 50 2T
• MALAGUTI CENTRO 50 4T euro 2 (C432M)
• MALAGUTI CIAK MASTER 50 4T euro 2
• PIAGGIO NRG Power 50 2T LC euro 4 2018->2020 (CA71M)
• PEUGEOT BUXY 50 2T
• PEUGEOT ELYSEO 50 2T
• PEUGEOT FOX 50
• PEUGEOT JET FORCE TSDI 50 2T LC (HL 1)
• PEUGEOT JET FORCE C-TECH 50 2T LC
• PEUGEOT KISBEE 50 ie 4T euro 5 2021-> 139QMB-K
• PEUGEOT LOOXOR 50 2T
• PEUGEOT LOOXOR TSDI 50 2T
• PEUGEOT LUDIX 50 2T
• PEUGEOT LUDIX BLASTER 50 2T LC (HL 2)
• PEUGEOT METAL-X 50 2T
• PEUGEOT RAPIDO 50 2T
• PEUGEOT BUXY RS 50 2T
• PEUGEOT SPEEDFIGHT 2 50 2T LC 2004->
• PEUGEOT SPEEDFIGHT 3 50 2T (B1E 40 QMB)
• PEUGEOT SPEEDFIGHT 3 50 4T (XS1P37QMA-2)
• PEUGEOT SPEEDFIGHT 3 50 2T LC
• PEUGEOT SPEEDFIGHT 50 2T
• PEUGEOT SPEEDFIGHT 50 2T LC
• PEUGEOT SPEEDAKE 50 2T
• PEUGEOT SQUAB 50 2T
• PEUGEOT ST 50 2T
• PEUGEOT SV GEO 50 2T
• PEUGEOT TREKKER 50 2T
• PEUGEOT TWEET² RS 50 4T euro 2
• PEUGEOT TWEET 50 4T euro 2
• PEUGEOT VIVACITY 50 2T
• PEUGEOT VIVACITY COMPACT 50 2T (FB2FP)
• PEUGEOT X-FIGHT 50 2T
• PEUGEOT X-FIGHT 2 50 2T LC 2004->
• PEUGEOT X-FIGHT 50 2T LC
• PEUGEOT ZENITH 50 2T
• PIAGGIO BRAVO 50 2T (ONLY FOR OVER RANGE)
• PIAGGIO BOSS 50 2T (ONLY FOR OVER RANGE)
• PIAGGIO CIAO PX 50 2T (ONLY FOR OVER RANGE)
• PIAGGIO DIESIS 50 2T
• PIAGGIO NRG EXTREME 50 2T
• PIAGGIO NRG EXTREME 50 2T LC
• PIAGGIO FLY 50 2T
• PIAGGIO FLY 50 4T
• PIAGGIO NEW FLY 4V 50 4T euro 2
• PIAGGIO FREE 50 2T
• PIAGGIO LIBERTY 50 2T
• PIAGGIO LIBERTY iGet 50 ie 4T euro 3 2016->2017 (C541M)
• PIAGGIO LIBERTY iGet 50 ie 4T euro 4 2018->2020 (CA11M)
• PIAGGIO LIBERTY 3V iGet 50 ie 4T euro 5 2021-> (CD11M)
• PIAGGIO LIBERTY 50 4T
• PIAGGIO LIBERTY 4V 50 4T euro 2
• PIAGGIO NRG MC2 50 2T LC <-1997
• PIAGGIO NRG MC2 50 2T LC 1998->
• PIAGGIO NRG MC3 Purejet 50 2T LC
• PIAGGIO NRG 50 2T LC
• PIAGGIO NRG MC3 DT 50 2T
• PIAGGIO NRG MC3 DD 50 2T LC
• PIAGGIO NTT 50 2T LC
• PIAGGIO NRG Power DD 50 2T LC
• PIAGGIO NRG Power DT 50 2T (C453M)
• PIAGGIO NRG Power Purejet 50 2T LC
• PIAGGIO QUARTZ 50 2T LC
• PIAGGIO SFERA RESTYLING 50 2T
• PIAGGIO SI 50 2T (ONLY FOR OVER RANGE)
• PIAGGIO ZIP S 3V iGet 50 ie 4T euro 5 2021->
• PIAGGIO TYPHOON 50 2T 2007->2010
• PIAGGIO TYPHOON 50 2T euro 2 2011->2017 (C421M)
• PIAGGIO TYPHOON 50 2T euro 4 2018-> (CA41M)
• PIAGGIO ZIP Fast Rider 50 2T
• PIAGGIO ZIP 50 2T 2000-> (C25EM)
• PIAGGIO ZIP 3V iGet 50 ie 4T euro 4 2018->2020
• PIAGGIO ZIP 3V iGet 50 ie 4T euro 5 2021->
• PIAGGIO ZIP 50 4T
• PIAGGIO ZIP SP 50 2T LC 2001->
• PIAGGIO ZIP SP 50 2T LC <-2000
• SYM CROX 50 4T LC euro 4 2019-> (XS1P37QMA-2A)
• SYM DD 50 2T
• SYM JET BasiX 50 2T euro 2
• SYM JET SportX-S - SportX-R 50 2T euro 2 (T5C/1)
• SYM SYMPHONY 50 4T euro 2 (XS1P37QMA-2)
• VESPA ET4 50 4T
• VESPA ET2 50 2T 2000->
• VESPA ET2 50 2T <-1999
• VESPA LX 50 2T
• VESPA LX 50 4T
• VESPA LX 4V 50 4T euro 2
• VESPA Primavera 3V iGet 50 ie 4T euro 4 2018->2020 (CA03M)
• VESPA Primavera 3V iGet 50 ie 4T euro 5 2021->2023 (CD01M)
• VESPA Primavera 50 2T euro 2 (C533M)
• VESPA Primavera 4V 50 4T euro 2 (C532M)
• VESPA S 50 2T euro 2 (C381M)
• VESPA S 4V 50 4T euro 2 (C386M)
• VESPA SPRINT 3V IGet 50 ie 4T euro 4 2018->2020 (CA01M)
• VESPA SPRINT 3V IGet 50 ie 4T euro 5 2021->2023 (CD01M)
• VESPA Sprint 50 2T euro 2
• VESPA Sprint 4V 50 4T euro 2
• SYM SYMPHONY ST 50 4T euro 5 2021-> (XS1P37QMA-3)
• SYM SYMPHONY 50 4T euro 5 2021-> (XS1P37QMA-3)
• VESPA Sprint S 3V Iget 50 ie 4T euro 5 2024->
• VESPA Primavera 3V Iget 50 ie 4T euro 5 2024->
• VESPA Primavera S 3V Iget 50 ie 4T euro 5 2024->
• VESPA Primavera Tech 3V Iget 50 ie 4T euro 5 2024->