Air-oil separator drain valve and related method of use
US11293315B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2021 |
| Grant date | Apr 5, 2022 |
| Priority date | — |
| Expiry date | Apr 14, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2013/0494
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A drain valve of an air-oil separator configured to separate oil aerosol from blow-by gas of an internal combustion engine is provided. The drain valve includes a floating plate adapted to close or open depending on oil flow and pressure relative to a drainpipe, and a plug that maintains the floating plate in the drainpipe and provides a flow path for oil in the drainpipe. The plug can serve a secondary function and form part of a seal recess that receives an annular seal member, such as an o-ring, to form a liquid tight seal around the drainpipe when coupled to another engine component to allow transfer of oil through the drainpipe. A related method of use is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.