Atlas Copco Industrial Technique Ab

Niclas Mikael Wiklund

Anders Urban Nelson

Hans Niklas Öberg

Per Thomas Söderlund

A power tool including a motor and a pulse unit intermittently driving an output shaft, wherein the pulse unit includes a cylinder with an inner cavity arranged to withhold a hydraulic fluid, and an anvil located inside the inner cavity, the anvil being connected to the output shaft, wherein: at least one recess is arranged inside the inner cavity wherein at least one magnet is provided inside the recess; and the at least one recess is deeper than the at least one magnet such that a pocket is formed in the recess outside the magnet.

Power tool with pulse unit with a magnet for removing particles

A method for diagnosing a torque impulse generator which includes a rotational input portion, a torque output portion, an oil reservoir and a torque generating arrangement converting rotation of the input portion to torque impulses at the torque output portion, the method includes: detecting an acoustic signal from the torque impulse generator while generating torque impulses, extracting the frequency of torque impulses from the acoustic signal, and diagnosing the torque impulse generator based on the frequency of torque impulses, to indicate the level of oil in the oil reservoir.

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Älta, Sweden

Niclas Mikael Wiklund