Continuously variable transmission engine braking system

A drive clutch having an engine braking feature for a continuously variable transmission is provided. The drive clutch includes a post that is coupled to an output of an engine. A fixed sheave, coupled to the post, has a fixed sheave belt engagement face. A movable sheave assembly that includes a mo...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Okeson, Shane Clair, Eck, Brian George, Olson, Allen Lloyd, Reddick, Jeffrey Paul
Format:	Patent
Sprache:	eng
Schlagworte:	BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVINGPURPOSES BLASTING CHAINS ENGINEERING ELEMENTS AND UNITS FITTINGS PREDOMINANTLY USED THEREFOR GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A drive clutch having an engine braking feature for a continuously variable transmission is provided. The drive clutch includes a post that is coupled to an output of an engine. A fixed sheave, coupled to the post, has a fixed sheave belt engagement face. A movable sheave assembly that includes a movable sheave belt engaging face, is configured to move axially on the post to move the movable sheave belt engaging face in relation to the fixed sheave belt engaging face depending on a rotational speed of the drive clutch. An idler bearing is mounted on the post at least in part between the movable sheave belt engaging face and the fixed sheave belt engaging face. The idler bearing includes a one-way rotational assembly and has an outer belt engaging surface with outward extending cogs configured to engage teeth of a belt to prevent slippage during engine braking.