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. 16, 2003
Filed:
Feb. 07, 2003
Keiichi Nakamizo, Hyogo, JP;
Shinya Akase, Kobe, JP;
Kawasaki Jukogyo Kabushiki Kaisha, Kobe, JP;
Abstract
To provide a four-cycle overhead valve engine wherein the breather passage is defined to avoid an undesirable increase in size of the engine as a whole and also to avoid increase in length of the breather passage, a four-cycle overhead valve engine is provided which includes a cylinder block ( ), and push rods ( and ) for driving intake and exhaust valves ( and ), respectively, that are mounted above the cylinder block ( ). A breather passage ( ) connecting a crank chamber ( ) and a rocker arm chamber ( ) with each other is made up of a first passage portion ( A) defined in the wall of the cylinder block ( ) at a location adjacent a flywheel ( ) and the push rods ( and ), and a second passage portion ( B) extending from one side adjacent the push rods ( and ) in a direction away from the push rods ( and ). A check valve ( ) for the breather passage ( ) is disposed at a junction between the first and second passage portions ( A and B).