Work vehicle engine with split-circuit lubrication system
US11486277B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 26, 2021 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | Feb 26, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2250/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A lubrication system for an internal combustion engine of a work vehicle includes an engine oil sump and a pump unit fluidly connected to the engine oil sump to receive engine oil therefrom. The pump unit, in turn, includes a first oil pump comprising a variable displacement pump, a second oil pump, a drive line mechanically coupled to the first oil pump and the second oil pump that drives each of the pumps, and a manifold that directs engine oil from the engine oil sump to the first and second oil pumps. A first oil circuit is fluidly coupled to the first oil pump to direct a first flow of engine oil to piston spray jets in the engine and a second oil circuit is fluidly coupled to the second oil pump to direct a second flow of engine oil to one or more oiled engine components in the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.