Combustion chamber structure having piston cavity

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

1997-10-09

1999-07-27

Solis, Erick R.

Internal-combustion engines

Combustion chamber means having fuel injection only

Combustible mixture stratification means

123298, 123305, 123307, 123309, F02B 1700, F02F 328

Patent

active

059272449

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 caldera-shaped protrusion provided around the piston cavity, a fuel injector for injecting fuel downward to the piston cavity and a spark plug disposed obliquely in proximity to an intake valve. The piston cavity is provided on the top surface of the piston being offset on the spark plug side. Further, the caldera-shaped protrusion is slanted towards the spark plug side. Therefore, injected fuel collides against a down-slope of the piston cavity and is diffused partly towards the spark plug and partly towards the cylinder head. As a result, a locally rich air-fuel mixture is formed around the spark plug so as to enable stratified charge combustion.

REFERENCES:
patent: 4920937 (1990-05-01), Sasaki et al.
patent: 4958604 (1990-09-01), Hashimoto
patent: 5335635 (1994-08-01), Kadoi et al.
patent: 5727520 (1998-03-01), Wirth et al.
patent: 5746171 (1998-05-01), Yoita

Affiliated with

Also associated with

Rating

Combustion chamber structure having piston cavity does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Combustion chamber structure having piston cavity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combustion chamber structure having piston cavity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-867246