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:
Aug. 01, 2017
Filed:
Apr. 25, 2014
Makita Corporation, Aichi, JP;
Kenji Imafuku, Tokyo, JP;
Junichi Masuda, Tokyo, JP;
Yoshifumi Watanabe, Tokyo, JP;
Hideaki Hirano, Tokyo, JP;
MAKITA CORPORATION, Aichi, JP;
Abstract
A stratified scavenging two-stroke engine includes: an intake passage that connects an intake opening through an outer surface of a cylinder member with an intake port opening to the inside of a cylinder, and supplies gaseous mixture of fuel and air; an exhaust passage that connects an exhaust outlet opening through the outer surface of the cylinder member with an exhaust port opening to the inside of the cylinder, and discharges combustion gas; a scavenging passage; and an air passage that connects an air inlet opening through the outer surface of the cylinder member with the scavenging passage and supplies pre-scavenging air into the scavenging passage. The intake and the air inlet are arranged at positions opposite from the exhaust port across the axis of the cylinder, and arranged side by side in a substantially circumferential direction of the cylinder or a direction substantially perpendicular to the axis of the cylinder.