Motor vehicle exhaust gas heat exchanger for heating engine coolant and lubricating oil
US4685430A · kind A · utility
53Cited by
8References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 19, 1986 |
| Grant date | Aug 11, 1987 |
| Priority date | — |
| Expiry date | Mar 19, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28D2021/0096
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The invention relates to a motor vehicle heat exchagner, the heat exchanger comprising a fluid box (10) having the ends of tubes (22) opening out therein, said tubes constituting a heat exchange bundle located inside an envelope (24). Engine exhaust gases flow through said box (10) and said tubes (22), and engine cooling liquid or cabin heater air flow through said envelope (24). The envelope is connected to the fluid box (10) by a tubular element (30) and a perforated plate (18). The envelope (24) is made of a lightweight material which need not be capable of witstanding exhaust gas temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.