Method and apparatus for detecting degree of clogging in particle trapping member of internal combustion engine
US4492079A · kind A · utility
30Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1982 |
| Grant date | Jan 8, 1985 |
| Priority date | — |
| Expiry date | Mar 25, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/30
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Particles contained in the exhaust gas discharged from an internal combustion engine are trapped by a particle-trapping-member disposed in an exhaust gas flow path. The flow rate of the exhaust gas is measured directly or indirectly, and the pressure loss for the trapping member is compared with an exhaust gas flow rate to measure the degree of clogging trapped by the trapping member. When the degree of clogging exceeds the predetermined valve, a command signal for closing an intake throttle is generated to reproduce said particle-trapping-member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.