Aktiebolaget Electrolux

Husqvarna Ab

Anders Jakobsson

Andreas Hedlund

Christer Almqvist

Evalena Sandberg

Lars Malmqvist

Lotta Norinder

Gustav D&ouml;ragrip

Niklas Sundberg

Anders Reuterberg

Anders Köhler

Mikael Kågebäck

Anna Sjögren

Anna Sj&ouml;gren

Andreas Larsson

Ola Holmgren

Tommy Krevi

Thomas Hakansson

Kagebäck Mikael

Arrangement in a blower including at least an engine and a fan, the fan includes a fan housing enclosing a fan wheel and a fan inlet. The engine and fan are surrounded by a casing provided with an air inlet to let air in to the fan inlet placed inside the casing. The air stream from the air inlet in the housing to the fan inlet cools the engine and components inside the casing before it enters the fan inlet and leaves the blower via a blower tube. The fan housing is provided with an opening () placed in the fan housing so that air is allowed to leave the fan in case of blocked air stream in the fan outlet or blower tube.

Cooling system for a blower

A portable working machine comprising a tool unit () with a disc guard and a circular tool (), and a machine unit () with a filter system (), an internal combustion engine () with an engine cylinder () with bore () having a centre line (), a crankshaft () and a crankcase (), a fuel tank (), a muffler () with an entrance port () provided in the rear side of the muffler and facing an exhaust port () of the cylinder, handles () controls () and supports () on the underside of the machine unit for allowing upright positioning of the machine on a flat ground. The cylinder bore () is inclined forwards in a direction towards the tool unit, such that the centre line () of the cylinder bore forms a tilt angle larger than zero, in the direction, to a perpendicular to any or both of the following lines: (a) a base line () which is a line coinciding with a horizontal surface on which the machine is resting in an upright position, when the supports on the underside of the machine unit contact the surface, and (b) a tangential line (') extending from a peripheral point of the tool, on the lower part of the tool when the machine has an upright position, to the bottom side of a rear support of the machine unit.

Portable working machine

Part of a back pack blower

Back pack blower

Growing community of inventors

Hjo, Sweden

Anders Jakobsson