Dolmar Gmbh

Festool Gmbh

Johannes Lügger

Carsten Ziegs

Sascha Kolossow

Bernward Otten

Jan Rodenbeck

Edwin Bunnik

Dirk Spohr

Jan Hammer

A chainsaw includes an internal combustion engine with a fuel-air mixture inlet and a carburettor with a fuel-air mixture outlet disposed in the direction of flow of a fuel-air mixture in front of the fuel-air mixture inlet. A fuel-air mixture channel is provided between the fuel-air mixture outlet and the fuel-air mixture inlet. A lubricant guide is provided along components to be lubricated, such that the lubricant circuit is connected particularly effectively to the fuel supply of the internal combustion engine. A removal device for fuel with a recess which receives fuel and supplies the lubricant guide is provided between the fuel-air mixture outlet and the fuel-air mixture inlet.

Motor-operated tool

A drive system for a tool, particularly a chain saw, includes a fresh air inlet and an intake manifold arranged after the fresh air inlet in the flow direction of the fresh air that opens into a carburettor. A combustion engine is provided that is arranged after the carburettor in the flow direction of an air-fuel mixture produced in the carburettor, in which the carburettor is exposed to a lower level of thermal stress. At least one heat conducting cooling vane is connected to the carburettor and protrudes outwards into direct contact with the ambient fresh air.

Engine-driven tool

The invention relates to a hand-operated tool with handle () with a handle section () on the user side and with a foot section () arranged on the bottom side of the handle section () and with a detachable one-piece upper handle shell () that covers at least substantially the handle section () on the user side and the foot section () on the bottom or ground side.

Hand-operated tool with handle

A medium pump for a motor includes a pump case with a pump cylinder and a pump piston positioned displacaebly in the pump cylinder in the direction of a pump axle. The pump piston rotates about the pump axle by running off an oblique control surface and realizes axial pump movements against the pressure of a first spring. A pump lift adjusting device is removably positioned in a guide placed transversely to the pump axle and fixedly connected with the pump case.

Growing community of inventors

Hamburg, Germany

Johannes Lügger