Lubricating apparatus for an engine
US5517959A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jan 18, 1994 |
| Grant date | May 21, 1996 |
| Priority date | — |
| Expiry date | Jan 18, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16N2270/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A lubricating apparatus is disclosed for use in an engine having a crankshaft, at least one bearing for the crankshaft, and an oil pan for storing a lubricating oil reserve. The apparatus comprises a pump for pumping the oil up from the oil pan, an oil passage for providing fluid communication between a discharge port of the pump and the bearing to supply the oil to the bearing, and an oil recirculation passage for providing communication between the bearing and an inlet port of the pump to return the oil at the bearing to the pump. The apparatus further includes a temperature activated valve assembly along the recirculation passage. The valve assembly allows the oil to return from the bearing to the pump through the oil recirculation passage, when the temperature of the engine is below a predetermined temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.