Dayco Europe S.r.l.

Borgwarner Emissions Systems Spain, S.l.

Adriano Rolando

Marco Di Meco

Gianluca Pane

Federico Domenico Licata

Carlo Baldovino

Hervé Riu

Mario Pennazza

Michele Savino

There is described a toothed belt comprising an elastomeric material body, in which a plurality of longitudinal filiform resistant inserts is embedded, and a toothing coated by a coating fabric. A resistant layer that increases the resistance to abrasion and thus the resistance to wear of the toothed belt is adhered over the coating fabric. The resistant layer comprises a vulcanization agent and more than 75% of an elastomer formed by at least one copolymer modified with an unsaturated carboxylic acid salt and obtained from a dien monomer and a nitrile group-containing monomer. The resistant layer is advantageously separated from the fabric and is calendered on the fabric itself.

Toothed belt comprising a resistant layer and resistant layer thereof

A damper pulley assembly has a hub; a seismic mass connected to the hub to define a dynamic torsional vibration damper; a pulley connected to the hub; elastic means for connecting the pulley in torque-transmitting mode to the hub; and one-way stop means for arresting the pulley in a first stop position with respect to the hub or the seismic mass in a first direction, when the elastic means reach a predetermined torsional load.

Damper pulley assembly having a safety device

A tensioner () for a belt drive, comprises a base () defining an axis (A), a mobile eccentric element () hinged about axis (A) and loaded by a spring (), a pulley () idly connected to the mobile element (). Specifically, the pulley () defines a single body with the external ring of a rolling bearing () mounted on the mobile element () and the spring () is helical and presents a square or rectangular cross section.

Pulley tensioner for an oil wet belt drive

A drive for an internal combustion engine having a predetermined take-up rate (TU) and comprising a drive pulley, a driven pulley, a shoe and an oil wet toothed belt cooperating in contact with a guiding surface of the shoe, presenting an optimized winding angle (&#x3b1;) of the guiding surface to decrease the power dissipated on the toothed belt.

Drive for an internal combustion engine comprising an oil wet toothed belt and a tensioning shoe

A tensioner () for a belt drive comprises a base() defining an axis (A), a mobile element () hinged onto axis (A) and defining a guiding surface (), an elastic helical element () having a square or rectangular cross section for actuating the mobile element () and an idle pulley () surrounding the guiding surface (). The tensioner () further comprises a journal bearing () for supporting the pulley () on the guiding surface ().

A tensioner for a belt drive comprises a pivot defining an axis, a support hinged to the axis and defining a guiding surface preferably having a circular profile, an elastic element for actuating the support and a crown pulley eccentric with respect to the axis and surrounding the guiding surface. The tensioner further comprises a journal bearing to support the pulley on the guiding surface.

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Valperga Canavese, Italy

Adriano Rolando