Carburetor and two-stroke engine with a carburetor
AssigneeAndreas Stihl AG & Co. KG
InventorMarkus Zwimpfer
Life of this patent
Estimating the term…
Abstract
A carburetor has a carburetor housing in which an air passage and a mixture passage are disposed. A barrel valve controls the air passage and the mixture passage. The barrel valve has a mixture passage section and an air passage section formed therein. The air passage in at least one position of the barrel valve is closed off at least partially by the barrel valve. The air passage in the at least one position of the barrel valve in which the air passage is at least partially closed off by the barrel valve is connected by a connection within the barrel valve with the mixture passage. An internal combustion engine equipped with such a carburetor exhibits excellent running behavior.
Claims19
A carburetor comprising:
- a carburetor housing in which an air passage and a mixture passage are disposed;
- a barrel valve controlling said air passage and said mixture passage, wherein said barrel valve has a mixture passage section and an air passage section formed therein;
- wherein said air passage in at least one position of said barrel valve is dosed off at least partially by said barrel valve;
- wherein said air passage in said at least one position of said barrel valve in which said air passage is at least partially closed off by said barrel valve is connected by a connection within said barrel valve with said mixture passage.
A two-stroke engine comprising:
- a cylinder in which a combustion chamber is disposed that is delimited by a reciprocating piston driving in rotation a crankshaft supported rotatably in a crankcase, wherein said crankcase in at least one position of said piston is connected by at least one transfer passage to said combustion chamber;
- a mixture passage connected to said cylinder;
- an air passage connected to said cylinder;
- a carburetor comprising a barrel valve for controlling said air passage and said mixture passage;
- wherein said air passage in at least one position of said barrel valve is at least partially closed off by said barrel valve;
- wherein said air passage, at least in said at least one position of said barrel valve in which said air passage is at least partially closed off by said barrel valve, is connected by a connection in said barrel valve with said mixture passage.
Dependencies are inferred from the claim text.