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:
Mar. 23, 1982
Filed:
Apr. 14, 1980
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B / ; F01M / ;
U.S. Cl.
CPC ...
123 / ; 1231 / ; 308187 ; 184-65 ;
Abstract
A non-contact type seal between two adjacent crankchambers of a multiple cylinder two stroke engines includes a sealing member fitted to the crankcase to encircle the crankshaft or the sleeve fitted to the crankshaft with a slight clearance between the sealing member and the crankshaft or the sleeve. A lubricant oil passage is formed in the sealing member to open to the clearance between the sealing member and the crankshaft or the sleeve so that the clearance is filled with lubricant oil which is to be supplied to the bearings at the opposite sides of the sealing member. The seal between the two crankchambers is provided by the lubricant oil in the clearance.