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:
Sep. 25, 2001
Filed:
Apr. 13, 2000
Hans Holderle, Freiberg, DE;
Stefan Kummermehr, Waiblingen, DE;
Johannes Menzel, Stuttgart, DE;
Helmut Zimmermann, Berglen, DE;
Bernd Knödler, Winnenden, DE;
Horst Denner, Weinstadt, DE;
Andreas Shihl AG & Co., Waiblingen, DE;
Abstract
The invention is directed to an arrangement of an air filter (,) and a membrane carburetor (,). The membrane carburetor (,) has an intake channel section (,) configured in the carburetor housing (,) and fuel-conducting channels (,) open into the intake channel section (,). The channels (,) are supplied from a fuel-filled control chamber (,) which is configured in the carburetor housing (,). The control chamber (,) is partitioned from a compensation chamber (,) via a control membrane (,). The compensation chamber (,) communicates with the housing (,) of the air filter (,) via a compensation channel (,) downstream of an air filter element (,). The air filter housing (,) engages over the membrane carburetor (,) essentially on the side of the compensation chamber (,) and the clean chamber (,) of the air filter housing (,) communicates with the intake channel section via a connecting stub (,) which lies approximately at right angles to the intake channel section (,). The connecting stub (,) is used as a connection between the clean chamber (,) of the air filter (,) and a flow space (,) mounted forward of the intake channel section (,) in order to ensure a reliable compensation where available space is tight. The volume of the flow space (,) is greater than the volume of the connecting stub (,) and the compensation channel (,) branches away from the flow space (,).