Overhead valve and rocker arm configuration for a small engine
US8220429B2 · kind B2 · utility
0Cited by
27References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 23, 2009 |
| Grant date | Jul 17, 2012 |
| Priority date | — |
| Expiry date | Oct 8, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L1/183
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A single-cylinder, four-stroke cycle, internal combustion engine arranged in an overhead valve configuration includes a first valve train and a second valve train. The first valve train includes a first cam on a camshaft, a first pushrod driven by the first cam, a first rocker arm attached to the first pushrod, and an exhaust valve driven by the first rocker arm. The second valve train includes a second cam on the camshaft, a second pushrod driven by the second cam, a second rocker arm attached to the second pushrod, and an intake valve driven by the second rocker arm. The first rocker arm is longer than the second rocker arm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.