Internal-combustion engines – Accessories – Covers – trays – vibrators – corrosion inhibitors – air filters
Reexamination Certificate
2005-04-19
2005-04-19
Denion, Thomas (Department: 3748)
Internal-combustion engines
Accessories
Covers, trays, vibrators, corrosion inhibitors, air filters
C123S184210
Reexamination Certificate
active
06880515
ABSTRACT:
A portable hand-guided work apparatus (1), such as a motor-driven chain saw, cutoff machine or the like, includes an internal combustion engine (2) and an air filter (10). At least one air channel (8) and an intake channel (7) are provided which fluidly connect the internal combustion engine (2) to the clean side of the air filter (10). The intake channel (7) is configured at least partially in a carburetor (9). The air channel (8) opens at an air channel opening (13, 13′, 13″) and the intake channel (7) opens at an intake opening (12) at the clean side of the air filter (10). Air channel opening (13, 13′, 13″) and intake opening (12) open spatially separate from each other at the clean side of the air filter (10). To prevent the entry of fuel into the air channel (8) from the intake channel (7), the intake opening (12) in the normal work position of the work apparatus (1), seen in the effective direction (17) of the gravity force, has an elevation offset (a, a′, a″) relative to the air channel opening (13, 13′, 13″).
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Fleig Claus
Geyer Werner
Knödler Bernd
Schlossarczyk Jörg
Andreas Stihl AG & Co. KG
Denion Thomas
Eshete Zelalem
Ottesen Walter
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