Power plants – Fluid motor means driven by waste heat or by exhaust energy... – With supercharging means for engine
Patent
1984-03-26
1986-09-02
Koczo, Michael
Power plants
Fluid motor means driven by waste heat or by exhaust energy...
With supercharging means for engine
123 79R, F02B 3700
Patent
active
046088288
ABSTRACT:
Each cylinder of a supercharged four-stroke internal combustion engine is provided with a multi-purpose duct which passes from the compressed air manifold to the exhaust manifold and has a short branch within the cylinder head structure leading directly downward to connect with the cylinder where a single valve is provided to admit intake air and pass out exhaust gas. The multi-purpose duct curves around in a part of a spiral above the cylinder near the branching place and enters laterally in the portion of the duct that leads off to the exhaust manifold, so that a relatively high resistance to flow keeps the pressure in the compressed air duct from being unduly diminished while flow of air bypassing the cylinder between the compressed air and the exhaust ducts serves to increase the amount of working gas in the supercharger. The duct is shaped so as to keep very low the resistance to the flow of air into the cylinder and the flow of exhaust gas out of the cylinder. In one embodiment butterfly throttle valves are provided at the inlet ends of the respective multi-purpose ducts, which are closed in a cyclical pattern to reduce the air flow between manifolds while the respective ducts are not serving the intake and exhaust operations of the particular cylinders to which they are connected.
REFERENCES:
patent: 2107389 (1938-02-01), Price et al.
patent: 3093959 (1963-06-01), Birmann
patent: 3590791 (1971-07-01), Roosa
K. Zinner "Aufladung von Verbrennungsmotoren", pp. 45, 352, 353, published by Springer-Verlag Berlin, Heidelberg, New York.
"Hutte des Ingenieurs Taschenbuch" (Engineer's Handbook), p. 720, Berlin 1954 published by Verlag von Wilhelm Ernst & Sohn.
Koczo Michael
M.A.N. Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft
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