Cooling oil delivery structure for a vehicular generator, and engine including same
US7347169B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2007 |
| Grant date | Mar 25, 2008 |
| Priority date | — |
| Expiry date | Feb 27, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02F2007/0063
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In an engine having a generator mounted thereon, an oil passage is formed within the engine's crankcase to supply oil to an oil jet for cooling one or more pistons. In addition, oil is supplied to an oil jet for cooling the generator, using the oil passage in common with the oil supply for cooling the piston, without requiring a separate, dedicated oil passage for the generator. The cooling oil delivery structure is provided for cooling the generator which is located at one end of the crankshaft. The oil passage for cooling pistons, which includes an oil jet for cooling each respective piston by jetting oil to the piston, is arranged on an axis substantially parallel to the crankshaft. A generator-cooling oil jet is provided on the crankcase at a terminal end of, and in fluid communication with the oil passage for cooling the pistons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.