Carburetor arrangement
AssigneeAndreas Stihl AG & Co. KG
InventorsAndré Prager, Thomas Sonnenkalb
Life of this patent
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Abstract
A carburetor arrangement for a manually-guided implement operated by an internal combustion engine. A carburetor supplies a fuel/air mixture to the engine, with a butterfly valve being disposed in the intake duct of the carburetor and with a choke valve being disposed upstream of the butterfly valve. A start lever is provided for actuating the carburetor in a start phase, and acts upon the choke valve. The start lever can be shifted in a direction of actuation and in an unlocking direction that is independent of the direction of actuation. The start lever can be locked in a rest position relative to the direction of actuation, and after being shifted out of the rest position in the unlocking direction is shiftable in the direction of actuation.
Claims19
A carburetor arrangement for a manually-guided implement that is operated by an internal combustion engine, comprising:
- a carburetor for supplying a fuel/air mixture to said internal combustion engine, wherein a butterfly valve is disposed in an intake duct of said carburetor for controlling engine power, and wherein upstream of said butterfly valve a choke valve is also disposed in said intake duct;
- a start lever for actuating said carburetor in a start phase, wherein said start lever acts upon said choke valve, wherein said start lever is adapted to be shifted in a direction of actuation and in an unlocking direction that is independent of said direction of actuation, wherein said start lever is adapted to be locked in a rest position relative to said direction of actuation, and wherein after said star lever is shifted out of said rest position in said unlocking direction, said start lever is unlocked such that it is shiftable in said direction of actuation, and
- a locking mechanism for said start lever, wherein said locking mechanism is secured directly to said carburetor.
Dependencies are inferred from the claim text.