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:
Dec. 24, 2002
Filed:
Oct. 15, 2001
Hiroshi Miyazaki, Musashimurayama, JP;
Takamasa Otsuji, Tachikawa, JP;
Komatsu Zenoah, Co., Kawagoe, JP;
Abstract
The engine can improve a leading air suction efficiency, has a simple structure and a low cost. Accordingly, in a stratified scavenging two-stroke cycle engine provided with an exhaust port ( ) and a scavenging port ( ) which are connected to a cylinder chamber ( ), a leading air suction port ( ) not connected to the cylinder chamber and a crank chamber ( ), an air-fuel mixture suction port ( ) connected to the crank chamber, a scavenging flow passage ( ) connecting between the scavenging port and the crank chamber, and a piston groove ( ) connecting between the leading air suction port and the scavenging port and not connecting between the air-fuel mixture suction port and the scavenging port at a time of a suction stroke, and disposed in an outer peripheral portion of the piston ( ), the leading air suction port is positioned at an opposite side to the air-fuel mixture suction port with respect to an axis of the cylinder ( ).