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:
Apr. 30, 1991
Filed:
Jul. 12, 1990
Heribert Kubis, Nuremberg, DE;
Josef Winter, Rednitzhembach, DE;
MAN Nutzfahrzeuge Aktiengesellschaft, Nuremberg, DE;
Abstract
A cylinder head sealing element for reciprocating piston engines, especially internal combustion engines, and advantageously engines having cylinder liners, is provided. To solve the increasingly more difficult problem of sealing the cylinder head where the power density of internal combustion engines is increased, a ring-like sealing element is provided, the end faces of which plastically deform when the cylinder head screws are tightened. The inner deformations of the cylinder head resulting from pressure forces in the cylinder are compensated for by elastic yielding of the sealing ring of the combustion chamber. The dimensions of the rib of a collar of a cylinder liner, of the groove of the cylinder head, and of the end faces of the sealing ring are coordinated with one another in such a way that the plastic deformation of the sealing ring is not of such a magnitude that the cylinder liner can deform. The sealing ring can therefore be disposed directly in a centering means of the cylinder liner, thus eliminating the need for special centering devices.