Process and apparatus for controlling a gas evacuation circuit of a rotational distribution motor
OwnerGuy Negreinventor
Life of this patent
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Abstract
Method and device for controlling an exhaust gas circuit of a rotary distribution engine, enabling to empty the dead volumes of burnt gases at the top dead center at the end of the exhaust and at the beginning of the intake, through a secondary exhaust conduit maintained under depression conditions or by pressure difference if the engine is fitted with a compressor.
Claims22
An engine comprising at least one cylinder and means for both supplying a working fluid to said at least one cylinder and allowing it to escape from said at least one cylinder, said means comprising a cylinder head having, for each of said at least one cylinder, an intake circuit, a first escape circuit, a second escape circuit, and a rotary valve for successively opening communication between said cylinder and each of said intake circuit, said first escape circuit, and said second escape circuit, said second escape circuit being in communication with said cylinder after said first escape circuit has closed and remaining open for a period of time allowing said intake circuit to begin simultaneous communication with said cylinder.
An engine comprising at least one combustion chamber and means for both supplying a working fluid to said at least one combustion chamber and, after combustion, allowing it to escape from said at least one combustion chamber, said means comprising a cylinder head having an intake circuit, a first escape circuit, a second escape circuit, and a valve for successively opening communication between said combustion chamber and each of said intake circuit, said first escape circuit, and said second escape circuit, said engine further comprising a cylinder communicating with said combustion chamber, and a piston for reciprocation within said cylinder, said second escape circuit being in communication with said cylinder after said first escape circuit has closed and adapted to remain open until said piston is displaced substantially to a position within said cylinder such that a pressure is created within said cylinder which is less than that of said second escape circuit.
An engine comprising at least one combustion chamber and means for both supplying a working fluid to said at least one combustion chamber and, after combustion, allowing it to escape from said at least one combustion chamber, said means comprising a cylinder head having an intake circuit, a first escape circuit, a second escape circuit, and a valve for successively opening communication between said combustion chamber and each of said intake circuit, said first escape circuit, and said second escape circuit, said engine further comprising a cylinder communicating with said combustion chamber, and a piston for reciprocation within said cylinder to and from an upper dead point at which said piston is adjacent said combustion chamber, said valve adapted to close communication between said combustion chamber and said first escape circuit before said piston reaches said upper dead point within said cylinder.
Dependencies are inferred from the claim text.