Four-stroke internal combustion engine

Details Four-stroke internal combustion engine Four-stroke internal combustion engine

1996-09-23

1998-06-09

Nelli, Raymond A.

Internal-combustion engines

Means to whirl fluid before, upon, or after entry into...

Having multiple oxidant inlet means

F02B 3100

Patent

active

057620415

ABSTRACT:
A four-stroke internal combustion engine with a gabled combustion chamber d at least two intake valves and at least two intake conduits per cylinder, of which a first intake conduit is embodied as unthrottled and a second intake conduit has a throttle device. To attain a stable radial mixture layering, it is provided that the fuel injection valve is disposed in the second intake conduit, and the throttle device in the closed state produces a defined minimum flow rate of between about 5% and about 20%, preferably about 10%, of the maximum flow rate, and that viewed in the direction of the crankshaft axis the center line of the first intake conduit in the intake valve region has a greater radius of curvature than does the center line of the second intake conduit.

REFERENCES:
patent: 5479889 (1996-01-01), Sato et al.
patent: 5549088 (1996-08-01), Isaka
patent: 5592916 (1997-01-01), Stockhausen et al.

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