Internal-combustion engines – Four-cycle – Multiple exhaust
Patent
1982-09-02
1984-01-24
Cuchlinski, Jr., William A.
Internal-combustion engines
Four-cycle
Multiple exhaust
55455, 123547, 123559, F02M 1500, F02M 3102
Patent
active
044269676
ABSTRACT:
The invention presents new and useful improvements in the method of designing air induction circuits for use in the intake manifolds of super-charged internal combustion engines. An air vortex generating chamber having a single air inlet conduit and two outlet conduits is placed between the compressed air source and the engine fuel atomizing device. The compressed air source entering the vortex chamber inlet is divided into two outlet streams, one hotter and one colder than the initial inlet stream. In the invention the vortex chamber functions as an air temperature management device which separates and classifies the air inducted into the engine in accordance with its heat content and distributes the separated streams to component areas of the intake manifold which are sensitive to temperature change. The warm air outlet, taken from the peripheral region of the vortex chamber, is used as a heat source and is directed above the point of fuel addition thereby increasing the effective vaporization of liquid fuel droplets. The colder outlet air stream, taken from the center of the vortex chamber, is used as a cooling media downstream of the point of fuel addition or at side ports in the engine cylinder, thereby decreasing the temperature in these areas. The addition of warm air improves the combustion efficiency by the reduction of fuel droplet size, while the addition of cool air at the other points in the manifolding increases the engine volumetric efficiency and also provides additional cooling for the piston crowns when applied at cylinder side ports.
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