Heat exchanger

Details Heat exchanger Heat exchanger

1981-05-20

1984-02-28

Cline, William R.

Liquid heaters and vaporizers

Flue

Horizontal

165155, F22B 2306

Patent

active

044336454

ABSTRACT:
A heat exchanger includes elongated inner and outer tubular members defining an elongated generally annular passage therebetween. A burner mounted adjacent one end of the tubular members discharges hot gases into the inner tubular member for axial flow therealong and entry into the annular passage adjacent the ends of the tubular members remote from the burner. The gases then flow back through the annular passage for discharge through a lateral exhaust outlet in the outer tubular member adjacent the one end thereof. The annular passage has a varying cross-sectional shape along its length such that a major portion of the gases enter the annular passage at a location diagonally opposite from the exhaust outlet and then flow both longitudinally and circumferentially along the annular passage toward the exhaust outlet. The heat exchanger is particularly useful in heating diesel engine coolant to facilitate more rapid engine starting.

REFERENCES:
patent: 3734066 (1973-05-01), Scheyen
patent: 3942719 (1976-03-01), Blomberg
patent: 4105158 (1978-08-01), Hasebe et al.
patent: 4169431 (1979-10-01), Viessmann

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