Marine engine exhaust systems having an oxygen sensor
US8696777B1 · kind B1 · utility
13Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2011 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Dec 9, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2590/02
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A marine engine exhaust system has an exhaust conduit conveying engine exhaust gas from upstream to downstream, a sensor sensing oxygen content of the exhaust gas in the conduit, and a shield located in the conduit. The shield is configured to shield the sensor from deleterious effects of liquid when liquid and exhaust gas is reverted in the exhaust conduit from downstream to upstream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.