Oil level monitoring system for an internal combustion engine
US7498932B1 · kind B1 · utility
5Cited by
20References
35Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 29, 2005 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Apr 29, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M1/18
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An internal combustion engine in a working device comprises an oil reservoir near a crankcase to hold oil. An oil measurement device is used to recognize the existence of oil in the oil reservoir and to produce a corresponding signal that is evaluated in an evaluation device to produce an oil level reading. The oil level reading is preferred to be produced only during the starting of the internal combustion engine or within a specific time period after starting the internal combustion engine. When the internal combustion engine has reached its operating RPM, no further oil level monitoring is performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.