Crankshaft Isolating Decoupler
AssigneeThe Gates Corporation
InventorAlexander Serkh
Life of this patent
Estimating the term…
Abstract
An isolating decoupler comprising a hub for connection to a driving shaft, a pulley journalled to the hub, the pulley having a belt engaging surface, a spring engaged between the hub and a spring carrier, the spring radially expandable in a loading direction, a one-way clutch spring disposed radially inward of the spring engaged with the spring carrier and frictionally engagable with the pulley in a loading direction that is opposite the loading direction of the spring, the one-way clutch spring engagable with the hub whereby the frictional engagement of the one-way clutch spring with the pulley can be progressively released in an unloading direction, and an inertial member engaged with the hub through a damping member.
Claims16
An isolating decoupler comprising:
- a hub for connection to a driving shaft;
- a pulley journalled to the hub, the pulley having a belt engaging surface;
- a spring engaged between the hub and a spring carrier, the spring radially expandable in a loading direction;
- a one-way clutch spring disposed radially inward of the spring engaged with the spring carrier and frictionally engagable with the pulley in a loading direction that is opposite the loading direction of the spring;
- the one-way clutch spring engagable with the hub whereby the frictional engagement of the one-way clutch spring with the pulley can be progressively released in an unloading direction;
- and
- an inertial member engaged with the hub through a damping member.
An isolating decoupler comprising:
- a hub for connection to a driving shaft;
- a pulley journalled to the hub, the pulley having a belt engaging surface;
- a torsion spring engaged between the hub and a spring carrier, the torsion spring loaded in an unwinding direction;
- a one-way clutch spring disposed radially inward of the torsion spring engaged with the spring carrier and frictionally engagable with the pulley in a loading direction that is opposite the loading direction of the spring;
- the one-way clutch spring engagable with the hub whereby the force of the frictional engagement of the one-way clutch spring with the pulley progressively decreases as the load increases beyond a predetermined level;
- and
- an inertial member engaged with the hub through a damping member.
The isolating decoupler as in claim 9, wherein the one-way clutch spring is loaded in a winding direction.
An isolating decoupler comprising:
- a hub;
- a pulley journalled to the hub, the pulley having a belt engaging surface;
- a torsion spring engaged between the hub and a spring carrier, the torsion spring loaded in an unwinding direction when operated in a driving direction;
- a one-way clutch spring disposed radially inward of the torsion spring engaged with the spring carrier and frictionally engagable with the pulley;
- the frictional engagement of the one-way clutch spring with the pulley progressively decreases as the load increases beyond a predetermined level;
- and
- an inertial member engaged with the hub through a damping member.
Dependencies are inferred from the claim text.