EXHAUST VALVE ASSEMBLY FOR A TWO-STROKE INTERNAL COMBUSTION ENGINE AND METHOD FOR CLEANING SAME

An exhaust valve assembly for a two-stroke internal combustion engine has a valve actuator, and a two-part valve having a primary and secondary valves defining first and second decompression passages respectively. The primary valve is operatively connected to the valve actuator. The primary valve is...

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Hauptverfasser: SCHALLAUER Martin, MATHEIS Andreas, ROLAND Guenther, DOPPELBAUER Markus, BERGER Christian
Format: Patent
Sprache:eng
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Zusammenfassung:An exhaust valve assembly for a two-stroke internal combustion engine has a valve actuator, and a two-part valve having a primary and secondary valves defining first and second decompression passages respectively. The primary valve is operatively connected to the valve actuator. The primary valve is in first, second and third primary valve positions when the valve actuator is in first, second and third actuator positions respectively. The secondary valve is in a first secondary valve position when the valve actuator is in the first or the second actuator position and in a second secondary valve position when the valve actuator is in the third actuator position. The first and second valve decompression passages fluidly communicate with each other when the valve actuator is in the second actuator position, and are fluidly separate from each other when the valve actuator is the first or the third actuator position.