Device that improves the performance of a portable engine powered tool during winter conditions
AssigneeAktiebolaget Electrolux
InventorsMagnus Andersson, Fredrik Ottosson
Life of this patent
Estimating the term…
Abstract
Engine-driven portable tools are widely used for different kinds of work where the surrounding conditions are very different. Large variations in temperature can cause problems for the engine, especially during low temperatures that occur during winter. The present invention reduces these problems in a simple and effective way by guiding heated air from the area adjacent to the muffler through a channel placed outside the casing to the air inlet for the engine. The cold air sucked into the engine is mixed with the heated air from the channel so that the temperature of the air mixture is increased.
Claims9
A combustion engine-driven portable tool comprising:
- a detachable channel outside the tool through which heated air from an area adjacent a muffler of the engine is led to an air inlet to the engine;
- a casing surrounding the combustion engine;
- and
- a shell attached to the casing so that the channel is created between the shell and the casing.
Dependencies are inferred from the claim text.