Internal-combustion engines – Four-cycle – Having subcharger associated with the cylinder
Patent
1986-11-17
1989-01-17
Wolfe, Jr., Willis R.
Internal-combustion engines
Four-cycle
Having subcharger associated with the cylinder
123501, F02D 3906, F01L 144
Patent
active
047981849
ABSTRACT:
An extended expansion diesel cycle engine which achieves a fuel efficiency materially higher than that of an engine operating on the conventional diesel cycle. A venting valve means is operated to provide a selectable ratio of predetermined pre-compression swept volume (C) versus work producing expansion swept volume (E) in a range of substantially between 1:1.2 and 1:3. Suitable selection of this C/E ratio ensures expansion of the combustion gases to a significantly greater volume than the pre-compression volume of the original air charge, effecting a predictable drop in temperature and pressure of the wasted exhaust gases. The extended expansion feature produces the feasibility of having a fuel delivery means timed to ensure exclusively after top dead center (ATDC) fuel ignition and combustion, thereby reducing heat dissipation, thus limiting cooling loss and significantly improving torque potential.
REFERENCES:
patent: 2344993 (1944-03-01), Lysholm
patent: 2796054 (1957-06-01), Miller
patent: 2817322 (1957-12-01), Miller
patent: 3015934 (1962-01-01), Miller
patent: 3057336 (1962-10-01), Hatz, Jr.
patent: 3986351 (1976-10-01), Woods et al.
patent: 4476837 (1984-10-01), Salzgeber
patent: 4619228 (1986-10-01), Liu
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