Lubricating configuration for maintaining wristpin oil pressure in a two-stroke cycle, opposed-piston engine
US9038593B1 · kind B1 · utility
6Cited by
15References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2013 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | Nov 9, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2011/021
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A lubricating configuration in a two-stroke cycle, opposed-piston engine for a piston wristpin minimizes losses in oil pressure at the wristpin as the piston approaches bottom center and reduces the required oil supply pressure to the engine. The wristpin is constructed to absorb and store oil pressure energy when oil pressure at the wristpin is high, and to release that stored energy to pressurize the oil at the wristpin when connecting rod oil pressure is low.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.