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. 17, 1998
Filed:
Oct. 08, 1996
Peter Johansson, Trollhattan, SE;
Wartsila Diesel International Ltd OY, Helsinki, FI;
Abstract
An improved valve rotation arrangement for providing valve rotation for a pressure medium valve in an internal combustion engine, especially a large diesel engine or gas engine, whereby the valve is opened under positive guidance for instance under the influence of a rocker arm and is closed by means of a spring, comprises a bearing arrangement for turnably journalling the upper part of a valve stem to the valve spring and a rotation mechanism supported to the cylinder head of the engine and arranged to provide valve rotation. The bearing arrangement comprises a slide bearing between a rotation element, arranged to the upper part of the valve stem, and a bearing housing element supported to the valve spring.