Ventildichtung für Wasserstoffverbrennungsmotoren

Details

Veröffentlichungs-Nr.

EP4764173

Anmeldetag

22. Dezember 2025

Veröffentlichung

24. Juni 2026

Rechtsraum

EP

Abstract

A hydrogen combustion engine comprises a combustion chamber comprises with cylinder head having at least one valve, said at least one valve comprising a valve disc for closing the combustion chamber from a manifold area and a valve stem coupled to an actuator system provided on the cylinder head and guided through a valve guide of the cylinder head and through the manifold area towards a valve seat to actuate the valve disc. The valve guide comprises a first seal assembly facing the manifold area; and is dimensioned for allowing the valve stem to reciprocate while preventing lubricant entering the manifold area through said seal assembly. The valve guide is further fluidly connected to an oil return gallery via an oil outlet channel near the seal assembly.

Anmelder

Firma

DAF Trucks N.V.

Land

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