The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 11, 2001
Filed:
Apr. 21, 2000
Reinhard Gerhardy, Korb, DE;
Andreas Stihl AG & Co., , DE;
Abstract
A diaphragm-type carburetor is provided for a two-cycle engine, in a manually guided implement, that operates with layered scavenging. Formed in the carburetor housing is an intake channel portion in which is disposed a butterfly valve that is pivotably held by a shaft. Opening into the intake channel portion are fuel-conveying channels supplied from a fuel-filled control chamber that is formed on a longitudinal side of the intake channel portion in the carburetor housing and is separated from a compensation chamber by a diaphragm. Air for combustion is additionally supplied to the engine via an air channel formed in a functional component of the carburetor fixed on the housing thereof on a longitudinal side of the intake channel portion. The air channel is disposed approximately parallel to the intake channel portion and is guided from that end face of the carburetor that faces an air filter to the connecting side of the carburetor that faces the internal combustion engine. Disposed in the air channel is a throttle member that is rotatably held by a shaft, which is coupled together with the shaft of the butterfly valve by means of a transmission connection.