Crankshaft torque modulator
US7591357B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Feb 4, 2004 |
| Grant date | Sep 22, 2009 |
| Priority date | — |
| Expiry date | Feb 4, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F15/1442
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A decoupler (22) is provided for transferring rotary movement between an engine driven crankshaft (16) and a serpentine belt (20). The decoupler (22) has a rotary driving member (18, 36) and a rotary driven member (36, 18) coaxially mounted with the driving member for relative rotary movement therewith. A decoupling assembly (19) extends between the driving member (18, 36) and the driven member (36, 18). The decoupling assembly (19) selectively couples the driving and driven members (18, 36) when the driving member rotates relative to the driven member in a first coupling sense. The decoupling assembly (19) uncouples the driving member from the driven member when the driving member rotates relative to the driven member in a second sense opposite the first sense. A torsional vibration damper (80) is mounted for rotation with one of the driving and driven members (18, 36) to cancel some of the vibrations generated by the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.