Collapsible pushrod assembly and method of installing a collapsible pushrod assembly
US7644694B2 · kind B2 · utility
2Cited by
120References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2007 |
| Grant date | Jan 12, 2010 |
| Priority date | — |
| Expiry date | Aug 1, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2107
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rocker box, pushrod assembly, oil delivery system, tappets and tappet guides are provided for an engine, particularly a motorcycle engine. The rocker box includes a separable upper portion and lower portion with a seal for sealing the upper portion and lower portion when coupled together. The pushrod assembly includes an adjusting unit that collapses into a pushrod shaft. The oil delivery system includes an oil passageway(s) in a rocker shaft of a rocker arm assembly, and at least one of an oil passageway(s) in a rocker box and an oil passageway(s) in a pushrod assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.