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. 14, 2017
Filed:
Apr. 23, 2012
Applicant:
Shigetoshi Ishida, Chiba, JP;
Inventor:
Shigetoshi Ishida, Chiba, JP;
Assignee:
HITACHI KOKI CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 25/00 (2006.01); F02B 25/16 (2006.01); F02B 25/22 (2006.01); F02F 1/22 (2006.01); F02F 3/24 (2006.01); F02B 75/02 (2006.01);
U.S. Cl.
CPC ...
F02B 25/16 (2013.01); F02B 25/22 (2013.01); F02F 1/22 (2013.01); F02F 3/24 (2013.01); F02B 2075/025 (2013.01);
Abstract
A laminar-scavenging two-cycle engine which has a high laminar-scavenging effect, includes a scavenging passage having a crankcase side portion extending along a crankcase, and a cylinder side portion extending along a cylinder and having a length larger than the sum of the diameter and stroke of the cylinder. An ambient air introducing passage for introducing leading air into the scavenging passage is connected to an intermediate portion of the scavenging passage. A notch for opening a scavenging port to the side of the crankcase when a piston is near the top dead center is formed in the piston.