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:
Nov. 17, 1992
Filed:
Oct. 18, 1991
Applicant:
Inventor:
Bo I Jonsson, Huskvarna, SE;
Assignee:
Aktiebolaget Electrolux, Stockholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123 / ; 123 / ;
Abstract
The invention relates to a more complex but considerably more emission-poor two-stroke engine than the conventional one. The HC-emissions become zero when completely burned. CO is controlled by the mixture ratio and NO.sub.x becomes very low owing to the built-in EGR. A super charger (20) presses air through the cylinder after the power stroke and dilutes the exhaust gases. A carburettor unit (21) is fed by the super charger and presses an overrich gas mixture into the cylinder at the beginning of the compression stroke. A slide gate (22) controls the connection between the carburettor unit and the cylinder.