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:
May. 10, 1977
Filed:
Nov. 21, 1975
Applicant:
Inventor:
Jean-Paul Rene Coulin, Enghien-les-Bains, FR;
Assignee:
Societe d'Etudes de Machines Thermiques, Saint Denis, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01M / ;
U.S. Cl.
CPC ...
184-69 ; 308 / ; 1231 / ;
Abstract
The invention relates to a device for lubricating the guiding system of an internal combustion engine valve having at least one valve stem mounted in a guide. A first upper cavity communicates permanently with a second lower annular cavity through a conduit. The first cavity is selectively interconnected to a lubricant intake duct through a sliding valve comprising an annular groove on the valve stem. A third cavity between the intake duct and the slide valve provides lubrication of the upper portion of the valve guide.