System for reduction of harmful exhaust emissions from diesel engines
US5987882A · kind A · utility
36Cited by
62References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 19, 1996 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Apr 19, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12549
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods and apparatus for reducing the TPM level of a diesel engine exhaust stream by providing a suitable oxidation catalyst into the exhaust train. The oxidation catalyst may be incorporated into a thermal insulative coating on the inner surface of the exhaust train, particularly the exhaust manifold and exhaust pipes prior to the turbocharger. Alternatively, when the exhaust train includes a turbocharger, the catalyst can be in a separate monolithic unit between the engine and the turbocharger. The system may also include an improved diesel oxidation catalyst unit having a metal monolithic substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.