Multi-position camshaft phaser with two one-way wedge clutches
US9447709B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 4, 2015 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | Jun 4, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2820/031
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A camshaft phaser, including a stator arranged to receive torque from an engine; a rotor arranged to be non-rotatably connected to a camshaft; first and second ramp rings radially disposed about the rotor and non-rotatably connected to the rotor; a first wedge plate radially disposed between the stator and the first ramp ring; a second wedge plate radially disposed between the stator and the second ramp ring; and a displacement assembly arranged to, for an advance mode, displace the first ramp ring in a first axial direction to enable rotation of the rotor, with respect to the stator, in a first circumferential direction, and for a retard mode, displace the second ramp ring in a second axial direction, opposite the first axial direction, to enable rotation of the rotor, with respect to the stator, in a second circumferential direction, opposite the first circumferential direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.