Internal combustion engine with air filter shield preventing soiling
AssigneeAndreas Stihl AG & Co. KG
InventorsWerner Geyer, Björn Scherraus, Lukas Zürcher
Life of this patent
Estimating the term…
Abstract
An internal combustion engine has a carburetor and an intake channel for supplying fuel and combustion air, wherein a section of the intake channel is formed in the carburetor. At least one fuel opening is provided that opens into the intake channel within the carburetor. The intake channel has an intake opening that is connected to a clean chamber of the air filter of the internal combustion engine, wherein the internal combustion engine takes in air through at least one filter element of the air filter. A choke element is arranged in the clean chamber and moveable into a choke position and into an open position. In the open position, the choke element shields the at least one filter element.
Claims9
An internal combustion engine comprising:
- an intake channel for supplying fuel and combustion air;
- a carburetor, wherein a section of the intake channel is formed in the carburetor;
- at least one fuel opening that opens into the intake channel within the carburetor;
- an air filter;
- wherein the intake channel has an intake opening that is connected to a clean chamber of the air filter, wherein the internal combustion engine takes in air through at least one filter element of the air filter;
- a choke element arranged in the clean chamber and moveable into a choke position and into an open position;
- wherein the choke element shields the at least one filter element relative to the intake opening when in the open position;
- and
- wherein the choke element has an annular section with a central opening and is provided with a flow conducting element, wherein the flow conducting element overlaps the central opening viewed in a direction of the longitudinal axis of the intake channel.
Dependencies are inferred from the claim text.