Engine lubrication system
US5988129A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1998 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Sep 21, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02F2001/245
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An overhead cam engine with an engine lubrication system comprises a valve train assembly which includes a camshaft rotatably supported by a cylinder head. An oil lubricated camshaft drive chain engages the camshaft to rotate it. A valve train lubricating assembly is disposed above the cylinder head and includes a baffle, radially positioned from the drive chain, to capture oil spray departing from the drive chain and a trough positioned above the valve train assembly. The trough is configured as an upward facing U-shaped channel, including an end wall to close the trough, defining a reservoir to collect oil from the baffle. Side outlets allow oil to overflow from the trough where outward protruding dimples act as precipitation points to target lubrication onto the valve train assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.