Waste heat recovery device of internal combustion engine
US6823668B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2003 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Aug 13, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An internal combustion engine waste heat recovery system is provided in which a second heat exchanger, a fifth heat exchanger, a fourth heat exchanger, a third heat exchanger, and a first heat exchanger are disposed sequentially from the upstream side to the downstream side of the flow of exhaust gas in an engine exhaust passage. Water, used as a working medium, is supplied sequentially to the first, second, third, fourth and the fifth heat exchangers. Water having the lowest temperature can be supplied to the first heat exchanger on the most downstream side of the gas flow, to which exhaust gas having a comparatively low temperature is supplied. Water having a comparatively low temperature, which has passed only through the first heat exchanger, can be supplied to the second heat exchanger on the most upstream side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.