Piston, especially for internal combustion engines

Details Piston, especially for internal combustion engines Piston, especially for internal combustion engines

1979-08-29

1981-06-23

Argenbright, Tony M.

Internal-combustion engines

Precombustion and main combustion chambers in series

Having fluid whirling means

123276, F02B 1908

Patent

active

042743753

ABSTRACT:
A piston, especially for internal combustion engines, which piston has a cup-shaped combustion chamber depression in the upper face wall, with recesses in the upper edge of the depression for a fuel injection nozzle and an ignition device, respectively. The fuel is injected into the cavity with a short unrestrained length of spray onto the depression wall, and during fuel injection combustion air is moved about an axis extending in the longitudinal direction of the piston. The combustion chamber depression has an at least nearly cylindrical wall in the region of the recesses, the first recess is formed by a trough which has sharp edges, terminates flat, and is inclined to a surface line of the depression. The other recess with which is associated the ignition device extends closely adjacent to the first recess, at an angle in the direction opposite to movement of air, with a ridge being provided between the two recesses. The fuel that is injected onto the wall of the trough has a direction component in the direction of movement of the combustion air.

REFERENCES:
patent: 3107658 (1963-10-01), Meurer
patent: 3244159 (1966-04-01), Meurer
patent: 3420216 (1969-01-01), Meurer et al.
patent: 4009702 (1977-03-01), Mayer

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