Valve actuation system comprising finger follower for lobe switching and single source lost motion
US11300014B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2021 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Jul 12, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D13/0273
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A switching finger follower for an engine valve train utilizes an adjustable support assembly that eliminates potential for partial engagement during operation. A lever engagement member or latch is disposed for movement on the follower body and interacts with a lever to provide a constant contact geometry. The finger follower may be configured as a lost motion device and may include a biasing assembly and a travel limiter. The latch may support the lever in at least one precise position and may support the lever in a second position for partial lost motion, or permit the lever to pivot free of the latch for complete lost motion, as in cylinder deactivation applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.