Combustion chamber structure having piston cavity

Details Combustion chamber structure having piston cavity Combustion chamber structure having piston cavity

1997-09-15

1998-09-29

Solis, Erick R.

Internal-combustion engines

Precombustion and main combustion chambers in series

Having combustible mixture forming means

123279, 123295, F02F 326

Patent

active

058133852

ABSTRACT:
An internal combustion engine having a cylinder head body with a pentroof-shaped combustion chamber comprises a piston including a piston cavity and a circular protrusion provided around the piston cavity, a fuel injector for injecting fuel downward to the piston cavity and a spark plug provided in proximity to an intake valve. Fuel is injected in a shape of a hollow cone and collides against the piston cavity and is diffused The diffused fuel is carried on the tumble flow of intake air and gathers around the electrode of the spark plug, this contributing to securing a stable stratified charge combustion. Further, the configuration of the circular protrusion prevents the sprayed fuel from scattering towards the cylinder wall.

REFERENCES:
patent: 2762348 (1956-09-01), Meurer
patent: 3999532 (1976-12-01), Kornhauser
patent: 4446830 (1984-05-01), Simko et al.
patent: 5329902 (1994-07-01), Sakamoto et al.
patent: 5335635 (1994-08-01), Kadoi et al.
patent: 5666916 (1997-09-01), Fujieda et al.
patent: 5699766 (1997-12-01), Saito

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