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US 7,441,518 B2Granted
Internal combustion engine and method of operating same
AssigneeAndreas Stihl AG & Co. KG
InventorsClaus Naegele, Hans Nickel
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AssigneeAndreas Stihl AG & Co. KG
InventorsClaus Naegele, Hans Nickel
Estimating the term…
An internal combustion engine having an intake channel that opens into a crankcase. A first fuel channel opens into the intake channel to supply fuel thereto as a function of underpressure in the intake channel. An auxiliary channel opens into a transfer channel that fluidically connects a crankcase to the combustion chamber. A second fuel channel opens into the auxiliary channel and is connected to a storage reservoir for fuel. At least one valve controls the quantity of fuel to be supplied to the engine via the auxiliary channel. Largely fuel-free air is supplied to the engine via the intake channel during idling. During a first revolution of the crankshaft, fuel is supplied via the auxiliary channel, so that a combustible mixture can form in the combustion chamber. During a second revolution, largely fuel-free air is supplied via the auxiliary channel and the combustion chamber is scavenged with largely fuel-free air.
An internal combustion engine, comprising:
An internal combustion engine, comprising:
An internal combustion engine, comprising:
A method of operating an internal combustion engine having a combustion chamber that is delimited by a piston reciprocally mounted in a cylinder, wherein said piston drives a crankshaft that is rotatably mounted in a crankcase, wherein at least one transfer channel fluidically connects said crankcase with said combustion chamber in prescribed positions of said piston, wherein an intake channel opens into said crankcase, and wherein an auxiliary channel (20, 40) opens into said at least one transfer channel, said method including the steps of:
Dependencies are inferred from the claim text.