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.:

US 7886714 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 15, 2011

Filed:

Jun. 22, 2009
Applicant:

Soji Kashima, Wako, JP;

Inventor:

Soji Kashima, Wako, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 13/00 (2006.01); F01L 1/34 (2006.01);
U.S. Cl.
CPC ...
Abstract

An exhaust gas reflux mechanism for a multipurpose engine includes an exhaust reflux cam formed as an integral part of an single cam of the engine and having a cam lobe profiled to open an exhaust valve while an intake valve stays open during the intake stroke of the engine so that part of an exhaust gas remaining on the side of an exhaust port of the engine is drawn into a combustion chamber during the intake stroke.


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