Lubrication unit for engines
US6837210B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2002 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Nov 25, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2001/126
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An oil feed pump for feeding oil in an oil tank to an engine, an oil recovery pump for feeding oil in a crankcase into the oil tank, an oil drain pipe connected to the lower portion of the crankcase and extending upward, and an opening provided on top of the oil tank are provided in a lubrication system. An opening of the oil drain pipe opens at the position upward of the oil level in the crankcase at a moment when the oil in the oil tank is returned into the crankcase. A cap is provided with a dip stick. The engine can be mounted on a small planing boat with the crankshaft oriented in the fore-and-aft direction. The oil tank is integrally formed with the front portion of the engine so as to be elongated in the vertical direction and is formed with the opening on top.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.