Heater with exhaust outlet connection integrated into the heat e

Details Heater with exhaust outlet connection integrated into the heat e Heater with exhaust outlet connection integrated into the heat e

1998-11-10

2000-07-18

Joyce, Harold

Heating systems

Heat and power plants

Vehicle

237 123B, B60H 102

Patent

active

060894652

ABSTRACT:
A heater, especially an auxiliary motor vehicle heater, with a burner in a combustion chamber (2) which is surrounded by a generally pot-shaped, die cast heat exchanger (4) which has inner and outer parts (5, 6) and between which an intermediate space (11, 12) is formed through which a heat exchange medium flows, the combustion gases emerging from the combustion chamber (2) being discharged via a exhaust outlet connection (23). To increase the heat transfer efficiency and to minimize the size of the heater, on the outside of the open end of the heat exchanger inner part (5) a ring (15) is provided which projects, spaced apart from the outer peripheral wall (7) of the inner part, toward the bottoms (8, 10) of the heat exchanger parts. The intermediate space (11, 12) continues from between the peripheral walls (7, 9) of the inner and outer heat exchanger parts to between the ring (15) and the peripheral wall (7) of the inner part (5). The free end of the ring (15) of the inner part (6) tightly adjoins the open end of the heat exchanger outer part (6). The exhaust outlet connection (23) penetrates the ring (15), the intermediate space (11) and the inner part (5).

REFERENCES:
patent: 4471754 (1984-09-01), Galtz
patent: 4637371 (1987-01-01), Rathel
patent: 4944454 (1990-07-01), Widemann et al.
patent: 5022379 (1991-06-01), Wilson, Jr.
patent: 5205250 (1993-04-01), Easterly et al.

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