Andreas Stihl Ag Co. Kg

Jens Kern

Reinhard Friedrich

Hans Nickel

Helmut Zimmermann

Roland Adam

Patrick Schlauch

Helmut Schlessmann

Stefan Kummermehr

Michael Joos

Olaf Schmidt

Markus Keller

Claus-Peter Hamisch

Reiner Kuppert

Heiko Pinkawa

Christoph V Hiller

An internal combustion engine of a manually operated implement, having an elastic connecting duct between the engine and an air filter for vibration-decoupled bridging of a vibration gap between engine and the air filter. The elastic connecting duct has a first conduit for fuel/air mixture and a second conduit for largely fuel-free air. The first and second conduits are separate tubes having respective bores that are separated from one another over their entire lengths, the inlet of the engine is operatively connected to the air filter via the first conduit, and an air duct window of the engine is operatively connected to the air filter via the second conduit.

Internal combustion engine having an elastic connecting duct

A portable handheld work apparatus includes a drive motor configured as an internal combustion engine (). The work apparatus includes an air filter case () arranged in the intake channel of the engine (). The work apparatus further includes a cover () and a locking device () for releasably holding the cover (). An actuating element () of the locking device () is configured as a slider () which is guided so that it is essentially linearly movable.

Portable handheld work apparatus

A starter device () for an internal combustion engine has a starter drum () which acts upon a spring housing () when starting. An intermediate spring () is arranged in the spring housing (). One end of the intermediate spring () is fixed to the spring housing () and the other end of the intermediate spring () can be coupled to the crankshaft () of the engine via a first catch (). The spring housing () and the starter drum () are journalled on a shaft () held at one end. The center of gravity (S) of the spring housing () lies in the region of the support of the spring housing () in order to reduce the acting bearing forces and to increase the service life of the starter device.

Starter device for an internal combustion engine

Growing community of inventors

Waiblingen, Germany

Jens Kern