Exhaust gas liquid heating system for internal combustion engine

Details Exhaust gas liquid heating system for internal combustion engine Exhaust gas liquid heating system for internal combustion engine

1984-11-09

1986-06-10

Cline, William R.

Heat exchange

Structural installation

Engine

165139, 165144, 165154, 239129, F01N 502, F02G 500, B05B 124, F28D 710

Patent

active

045937532

ABSTRACT:
A heat exchanger system for utilizing the exhaust gases of an internal combustion engine to heat liquid. A system for heating water to be used in a carpet and furniture cleaning system is disclosed. A pump circulates water from a holding tank through a serial circuit including copper coils wound around primary exhaust pipes from an engine to a primary heat exchanger and a secondary exhaust pipe from the heat exchanger to the remainder of the exhaust system. The circuit includes the primary heat exchanger which comprises concentric copper tubes forming a water jacket therebetween. The exhaust gases enter the inner tube adjacent opposite ends and a deflector plate adjacent each entry causes a helical passage of the exhaust gases from either end along the inner tube in a manner causing maximum turbulence so as to maximize heat transference to the wall of the inner tube and thus the water jacket. The secondary exhaust pipe exits the exhaust gases mid-way between the ends of the heat exchanger. The water passes along the water jacket from one end of the heat exchanger to the other and then back to the holding tank for use or possible re-circulation. A solenoid valve directs the returning water to waste if the temperature in the holding tank reaches a predetermined high when usage of water is low.

REFERENCES:
patent: 1113410 (1914-10-01), Coffill
patent: 1157101 (1915-10-01), Halliday
patent: 1187333 (1916-06-01), Kenney
patent: 1610810 (1926-12-01), Noll
patent: 2661934 (1953-12-01), Stutz
patent: 2698162 (1954-12-01), Riesgo
patent: 3186394 (1965-06-01), Ramun
patent: 4015567 (1977-04-01), Zabenskie
patent: 4284127 (1981-08-01), Collier et al.

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