Method and apparatus to estimate oil aeration in an engine
US6758187B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 22, 2002 |
| Grant date | Jul 6, 2004 |
| Priority date | — |
| Expiry date | Jan 18, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2800/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention is a method and apparatus to determine an amount of aeration of fluids such as engine oil, thus permitting more aggressive operation of an oil-driven actuator, with fewer limitations in scheduling operation of the actuator. It includes monitoring engine speed and fluid temperature, and determining a first and second attitude of the engine relative to a first and second axis, and determines an amount of aeration of the fluid based upon those factors. The method determines an operating range of the fluid-driven actuator based upon the amount of aeration, and then permits the operation of the fluid-driven actuator within the operating range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.