Regenerative internal combustion engine

Details Regenerative internal combustion engine Regenerative internal combustion engine

1985-10-02

1988-12-13

Wolfe, Jr., Willis R.

Internal-combustion engines

Charge forming device

Heating of combustible mixture

60517, F02G 500

Patent

active

047902841

ABSTRACT:
A highly efficient regenerative reciprocating internal combustion engine is disclosed. The regenerator captures the unutilized heat normally expelled with the exhaust products of such an engine and transfers it to fresh working fluid at the appropriate time in the next engine operating cycle to reduce the quantity of fuel which must be burned, resulting in an increase in engine efficiency. This is accomplished through the use of a permeable, movable heat exchanger located between the piston and the cylinder head. This regenerative technique can be applied to both two and four stroke Diesel cycle and Otto cycle engines. It can also be employed in ported (i.e. valveless) engines. The hot combustion region can be located between the cylinder head and the regenerator or between the piston and the regenerator. These regenerative devices and processes greatly improve the thermal efficiency of conventional internal combustion engines, while providing power outputs similar to conventional engines of the same displacement, greatly reducing hydrocarbon and carbon monoxide emissions, and utilizing much the same hardware. In addition, the regenerative internal combustion engine places reduced heat loads on engine components, is operable at lower peak temperatures (with thermal efficiencies and power still comparable to conventional engines), and is better able to utilize high temperature materials which can reduce heat loss to engine cooling systems.

REFERENCES:
patent: 3777718 (1973-12-01), Pattas
patent: 4074533 (1978-02-01), Stockton
patent: 4280468 (1981-07-01), Millman
patent: 4413475 (1983-11-01), Moscrip

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