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:
Feb. 27, 1979
Filed:
Oct. 18, 1976
Applicant:
Inventor:
Albert M Karaba, Muskegon, MI (US);
Assignee:
United States of America, Washington, DC (US);
Primary Examiner:
Int. Cl.
CPC ...
F02M / ; F02D / ; F02M / ; F02B / ;
U.S. Cl.
CPC ...
123 / ; 123 / ; 1231 / ; 1231 / ; 123 / ; 1231 / ;
Abstract
A low emission, internal combustion compression ignition engine having a cylinder, a piston movable in the cylinder and a pre-combustion chamber communicating with the cylinder near the top thereof and in which low emissions of NO.sub.x are achieved by constructing the pre-combustion chamber to have a volume of between 70% and 85% of the combined pre-chamber and main combustion chamber volume when the piston is at top dead center and by variably controlling the initiation of fuel injection into the pre-combustion chamber.