Disc valve system for an internal combustion engine

F - Mech Eng,Light,Heat,Weapons – 01 – L

Patent

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Details

F01L 7/16 (2006.01) F01L 7/06 (2006.01) F01L 31/18 (2006.01) F02B 57/02 (2006.01) F02B 57/04 (2006.01)

Patent

CA 2597946

A disc valve system for a piston driven internal combustion engine. The disc valve system comprises at least one rotating disc valve and an intermediate seal member. The disc is mounted between a cylinder head manifold having exhaust and intake ports and an engine cylinder housing the piston and defining a combustion chamber. The disc comprising sequencing ports to be brought into periodic communication with the exhaust and intake ports at cyclic intervals of the rotating movement thereof, thereby providing for the exhaust and intake ports to be brought into periodic communication with the combustion chamber. The intermediate seal member is mounting between the disc and the cylinder so as to seal the combustion chamber at a junction of the disc and the cylinder. The intermediate seal member comprising a dynamic seal for contact with the disc and a stationary seal for sealing contact with the engine cylinder. The rotating movement of the disc sequentially opens and closes each exhaust and intake ports synergistically with the translational movement of the piston. Engines comprising these disc valve systems are also disclosed herein.

La présente invention a trait à un système de clapet à disque pour un moteur à combustion interne. Le système de clapet à disque est monté entre un manifold de culasse comprenant des lumières d'échappement et d'admission et un cylindre de moteur logeant le piston et délimitant une chambre de combustion. Le disque comporte des orifices de séquence destinés à être amenés en communication périodique avec les lumières d'échappement et d'admission à intervalles cycliques du mouvement rotatif de celui-ci, permettant ainsi d'amener les lumières d'échappement et d'admission en communication périodique avec la chambre de combustion. L'organe de joint intermédiaire est monté entre le disque et le cylindre en vue de rendre étanche la chambre de combustion au niveau d'une jonction du disque et du cylindre. L'organe de joint intermédiaire comporte un joint dynamique pour être en contact avec le disque et un joint statique pour être en contact étanche avec le cylindre de moteur. Le mouvement rotatif du disque assure l'ouverture et la fermeture séquentielle de chaque lumière d'échappement et d'admission de manière synergique avec le mouvement de translation du piston. L'invention a également trait à des moteurs comportant des systèmes de clapet à disque.

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