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Stihl was founded in 1926 by Andreas Stihl, an innovator in early chainsaw production. Stihl says it is the world's best-selling brand of chainsaws and the only chainsaw manufacturer to make its own saw chains and guide bars. [4] Andreas Stihl AG is a privately held company owned by the descendants of Andreas Stihl.
The chain has to be properly matched to the guide bar and the saw. Chainsaw manufacturers specify a selection of suitable chains for each model of saw. Best safety requires that the chain is properly sharpened. One key sharpening parameter is the depth gauge setting. The depth gauge is the small steel protubera
A number of very specialised chain types have emerged over recent years. These include chains made of steel alloys optimised for cutting in extremely cold conditions, chains with tungsten carbide teeth for very dirty conditions and rescue work, ripping chains with altered blade geometry for making ripping cuts, and milling chains for chainsaw ...
The tip-speed ratio, λ, or TSR for wind turbines is the ratio between the tangential speed of the tip of a blade and the actual speed of the wind, v. The tip-speed ratio is related to efficiency, with the optimum varying with blade design. [1] Higher tip speeds result in higher noise levels and require stronger blades due to larger centrifugal ...
Bladesmith, Nuremberg, Germany, 1569 Bladesmithing is the art of making knives, swords, daggers and other blades using a forge, hammer, anvil, and other smithing tools. [1] [2] [3] Bladesmiths employ a variety of metalworking techniques similar to those used by blacksmiths, as well as woodworking for knife and sword handles, and often leatherworking for sheaths. [4]
The reversible, variable-pitch propeller holds eight blades, each having a carbon spar enclosed by a composite shell and a polyurethane coating. [39] Its blades have a scimitar shape [ 34 ] that results in a sweep angle of about 55 degrees at the blade tips, [ 40 ] which have a helical speed of 290 m/s (951 ft/s; 1,044 km/h; 648 mph) at the ...
An animated simulation of an axial compressor. The static blades are the stators.. An axial compressor is a gas compressor that can continuously pressurize gases.It is a rotating, airfoil-based compressor in which the gas or working fluid principally flows parallel to the axis of rotation, or axially.
QBlade is especially adequate for teaching, as it provides a ’hands-on’ feeling for Horizontal-axis wind turbine (HAWT) rotor design and shows all the fundamental relationships between blade twist, blade chord, section airfoil performance, turbine control, power and load curves in an easy and intuitive way. QBlade also includes post ...