Abstract

We analyse in terms of efficiency and traction capabilities a recently patented traction drive, referred to as the double roller fulltoroidal. variator (DFTV). We compare its performance with the single roller full-toroidal variator (SFTV) and the single roller. half-toroidal variator (SHTV). Modeling of these variators involves challenging tribological issues; the traction and efficiency. performances depend on tribological phenomena occurring at the interface between rollers and disks, where the lubricant. undergoes very severe elastohydrodynamic lubrication regimes. Interestingly, the DFTV shows an improvement of the mechanical. efficiency over a wide range of transmission ratios and in particular at the unit speed ratio as in such conditions in which the DFTV. allows for zero-spin, thus strongly enhancing its traction capabilities.The very highmechanical efficiency and traction performances. of the DFTV are exploited to investigate the performance of a flywheel-based Kinetic Energy Recovery System (KERS), where. the efficiency of the variator plays an important role in determining the overall energy recovery performance. The energy boost. capabilities and the round-trip efficiency are calculated for the three different variators considered in this study.The results suggest. that the energy recovery potential of the mechanical KERS can be improved with a proper choice of the variator.

Autore Pugliese

• Bottiglione Francesco , Carbone Giuseppe , Mangialardi Luigi , Mantriota Giacomo

Tutti gli autori

• Bottiglione, Francesco , Carbone, Giuseppe , Novellis, Leonardo De , Mangialardi, Luigi , Mantriota, Giacomo

Titolo volume/Rivista

ADVANCES IN TRIBOLOGY

Anno di pubblicazione

2013

ISSN

1687-5923

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

10

Ultimo Aggiornamento Citazioni

2017-04-22 03:20:59

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile