Stamped roller-type cam followers with added height
US5819694A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 1997 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | May 15, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20882
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention provides a new roller-type cam follower for transmitting valve-opening impulses from an overhead camshaft of an internal combustion engine. The follower has an integral, one-piece cold-formed cam follower body with a U-shaped, cam-facing cross-section at a support end of the follower which rides on a valve lifter post. Added height is provided by the combination of an inverted U-shaped cross-section of the movable, valve-engaging end of the follower with a separate insert secured into its section. The insert can be arcuate or spring-like and can be attached to a movable end of the cam follower or can be a cup-like insert attached to a support end of the follower. A cam follower with novel oiling structure is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.