Drive train for overhead cam engine
US6279522A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2000 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Mar 17, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L1/026
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A drive train for a four stroke, overhead cam engine is provided, comprising a crankshaft, connecting rod, and piston assembly for reciprocating the piston within the cylinder bore of a cylinder block. An internally profiled cam gear is driven around an axis perpendicular to the axis of the cylinder block. A pair of follower arms extend from a pair of rocker arms and engage the cam profile to actuate intake and exhaust valves in the cylinder block. An intermediate gear is driven by the crankshaft at half speed to drive the cam gear, and may also be used to drive an additional device, such as a combination oil pump and governor. The cam follower arms may be disposed in an overlapping crosswise arrangement generally parallel to the cam gear, or may be disposed perpendicular to the cam gear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.