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  2. Central vacuum cleaner - Wikipedia

    en.wikipedia.org/wiki/Central_vacuum_cleaner

    For instance, if a central vacuum has two motors with a power of 500 airwatts each, the whole central vacuum has 2 X 500 airwatts. Airwatts cannot be added together; a unit with two motors of 500 airwatts each does not make a 1000-airwatt unit. For central vacuums with two motors, the airflow may be connected in series or in parallel (not to be ...

  3. Vacuum engine - Wikipedia

    en.wikipedia.org/wiki/Vacuum_engine

    12. is the Pneumatic motor powered by 1. Pedal. In a vacuum motor, the partial vacuum is created by an external pump. These motors were commonly used to power railway turntables in the UK, using vacuum created by a steam locomotive's vacuum brake ejector. The operating principle is similar to a steam engine – in both cases power is extracted ...

  4. List of vacuum cleaners - Wikipedia

    en.wikipedia.org/wiki/List_of_vacuum_cleaners

    This is a list of vacuum cleaners and robot vacuum cleaner manufacturers. A vacuum cleaner is a device that uses an air pump to create a partial vacuum to suck up dust and dirt, usually from floors, and optionally from other surfaces as well. The dirt is gathered by either a dustbag or a rigid cartridge, which may be emptied and reused.

  5. RD-180 - Wikipedia

    en.wikipedia.org/wiki/RD-180

    A model of the RD-180. The RD-180 (Russian: Ракетный Двигатель-180 (РД-180), romanized: Raketnyy Dvigatel-180, lit. 'Rocket Engine-180') is a rocket engine that was designed and built in Russia.

  6. Aerus - Wikipedia

    en.wikipedia.org/wiki/Aerus

    The company made electric motors and control systems for the Army and Navy. [3] Electrolux Model LX - First vacuum to use a sealed disposable bag. In 1952, the company debuted the Electrolux Model LX, the first vacuum that would know when it is full and also the first vacuum to use a self-sealing bag. [5]

  7. Johnson Electric - Wikipedia

    en.wikipedia.org/wiki/Johnson_Electric

    Johnson Electric (德昌電機控股有限公司) (SEHK: 179) is a provider of motors, actuators, motion subsystems and related electro-mechanical components for automotive, industrial and medical applications. Johnson Electric has manufacturing facilities in 22 countries.

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