IN A CONVENTIONAL VACUUM CLEANER, an electric motor spins a fan that sucks in air carrying dust and debris. The air is forced through tiny pores in a dust bag, trapping most particles. In the 1990s, James Dyson’s dual cyclone “bagless” design did away with the dust bag—and the reduced airflow caused by clogging of its pores. An electrically driven fan creates a partial vacuum within the machine. This sucks air into the machine past a rotating brush that loosens dirt. The air flows into a cylinder-shaped bin. As the air whirls around the bin like a miniature storm, or cyclone, larger particle are flung outward and fall to the bottom of the bin. The air then passes through perforations into a cone-shaped inner bin and then into a series of smaller cones, spinning faster all the time and flinging smaller and smaller particle out. The nearly clean air exits the machine through microfilters that trap the tiniest particles. Some Dyson vacuum cleaners run on a large ball instead of wheels. The ball makes it easier to steer the cleaner.
Vacuum cleaner
in
THE MODERN WORLD
published on 8:49 AM
IN A CONVENTIONAL VACUUM CLEANER, an electric motor spins a fan that sucks in air carrying dust and debris. The air is forced through tiny pores in a dust bag, trapping most particles. In the 1990s, James Dyson’s dual cyclone “bagless” design did away with the dust bag—and the reduced airflow caused by clogging of its pores. An electrically driven fan creates a partial vacuum within the machine. This sucks air into the machine past a rotating brush that loosens dirt. The air flows into a cylinder-shaped bin. As the air whirls around the bin like a miniature storm, or cyclone, larger particle are flung outward and fall to the bottom of the bin. The air then passes through perforations into a cone-shaped inner bin and then into a series of smaller cones, spinning faster all the time and flinging smaller and smaller particle out. The nearly clean air exits the machine through microfilters that trap the tiniest particles. Some Dyson vacuum cleaners run on a large ball instead of wheels. The ball makes it easier to steer the cleaner.
