Husqvarna Ab

Rikard Rydberg

Pär Martinsson

Stefan Stark

Magnus Ottosson

Fredrik Lindström

Hugo Van Bijsterveldt

Mats Andersson

A fuel supply system for small two-stroke internal combustion engines for e.g. chain saws, line trimmers and similar hand-held power-tools including a diaphragm carburetor () equipped with a purging system () or priming system () for facilitating starting of the engine (). Downstream of the diaphragm (), the carburetor has a fuel valve () with a fuel cavity (), which when the valve is not closed being connected via a fuel conduit () to a fuel nozzle () in a main air passage () in the carburetor. The purging system or priming system including a fuel line (), which is provided with a manually operated pump () and is connected between a fuel tank () and either the fuel cavity () or the fuel conduit ().

Carburetor system for a carburetor engine

A chainsaw may include a guide bar, a cutting chain and a driving unit arranged to drive the cutting chain around the guide bar. The guide bar defines a first longitudinal axis extending along a center of the guide bar. The chainsaw further comprising a handle section for carrying and operating the chainsaw, wherein the handle section includes a control portion disposed on the upper side of the chainsaw. The control portion in turn includes a throttle lever for controlling the speed of the driving unit and the control portion has a left and a right side. The control portion defines a second longitudinal axis substantially extending along an upper side of at least a part of the control portion. An angle, A, between the first and the second longitudinal axes is between 14&#xb0; and 45&#xb0;.

Chainsaw arrangement

A portable handheld power tool (), such as a chain saw or a power drill, having a receiving device () arranged on a body portion () of the power tool (). The receiving device () is arranged for connecting/disconnecting to the portable handheld power tool () either a flexible elongated member, such as a rope, or a fastening device secured to the elongated member or to an operator of the portable handheld power tool (). The receiving device () has a receiving portion () for receiving and leading the flexible elongated member therethrough. The receiving portion () extends substantially in a plane (P). Furthermore, the receiving device () has an attachment portion () which is arranged to connect the receiving device () to a body portion () of the portable handheld power tool () by means of a pivot assembly (). The pivot assembly () defines a pivot axis (PA), permitting the receiving portion () to move between a resting position, wherein the plane of the receiving portion () is essentially parallel to the pivot axis (PA), and an operating position. In the operating position, the receiving portion () is movable about the pivot axis (PA), and the plane (P) of the receiving portion is essentially perpendicular to the pivot axis (PA).

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Norrahammar, Sweden

Rikard Rydberg