Anti-rotation roller valve lifter
US8826874B2 · kind B2 · utility
6Cited by
18References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2011 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Mar 22, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2307/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A roller lifter for an internal combustion engine includes a cylindrical lifter body having a first end, a second end and a roller rotatably attached to the first end. The first end has a first diameter and the second end has a second diameter greater than the first diameter and a flat surface configured to engage a corresponding flat surface on an adjacent roller lifter and to prevent axial rotation of the roller lifter while in use. The roller lifter may further include a recess extending along a longitudinal axis from the second end toward the first end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.