The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 04, 2000
Filed:
Feb. 09, 1998
Dante Rodolfo Malatto, Orbassano, IT;
Vladimiro Patrone, Orbassano, IT;
C.R.F. Societa Consortile per Azioni, Orbassano, IT;
Abstract
In a spark ignition internal combustion engine, at least one cylinder is provided in the engine block and a corresponding combustion chamber is formed in the cylinder head for each cylinder. Two intake valves and an exhaust valve are associated with each combustion chamber with the spark-plug for each combustion chamber being arranged in the center between the three valves. The surface of the cavity within the head defining the combustion chamber is roof-shaped with two inclined surface portions in which the two intake ports and the exhaust port are respectively located. In a plane perpendicular to the cylinder axis, the combustion chamber has a pseudo-triangular profile having rounded apices locally following the profile of the three intake and exhaust ports.