Exhaust gas control mechanism for a two-stroke engine
AssigneeAndreas Stihl AG & Co. KG
InventorsWerner Geyer, Axel Klimmek
Life of this patent
Estimating the term…
Abstract
An exhaust gas control mechanism for a two-stroke engine is provided. A first housing chamber is in communication with a discharge window of the cylinder of the engine, while a second housing chamber has the exhaust gases flowing therethrough into an exhaust gas outlet. A flow communication establishes a controlled communication of flow of exhaust gas from the first chamber to the second chamber. A valve is provided for controlling the flow communication, wherein such valve, if initially open, closes upon partial opening of the discharge window and after a given period of time again opens.
Claims18
An exhaust gas control mechanism for a two-stroke engine, comprising:
- a housing having a first housing chamber, which is in communication with a discharge window of a cylinder of said engine, and a second housing chamber, through which flow exhaust gases into an exhaust gas outlet of said housing;
- flow communication means disposed in said housing for establishing a controlled communication of flow of exhaust gases from said first housing chamber into said second housing chamber;
- and
- a valve disposed in said housing for controlling said flow communication means, wherein said valve, if initially open, closes upon partial opening of said discharge window and after a given period of time again opens.
Dependencies are inferred from the claim text.