Stoddard engine

Thermodynamics
The classical Carnot heat engine
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Elliott J. Stoddard invented and patented two versions of the Stoddard engine, the first in 1919 and the second in 1933. The general engine classification is an

The generalized thermodynamic processes of the 1919 Stoddard cycle are:[1]

1. Adiabatic compression
2. Isobaric heat-addition
3. Adiabatic expansion
4. Isobaric heat-removal

The engine design in the patent was using a scotch yoke.

The 1933 Stoddard engine

In the 1933 design,^[2] Stoddard reduced the internal volume of the heat exchangers maintaining the same generalized thermodynamic processes as the 1919 cycle.

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