First time I replaced a Dyson vacuum motor, I phone my local shop.......
"Do you have a motor for a dyson vacuum.." "Yes" "do you need the model
number" "No we have ALL dyson motors there are best seller"

PC=20

-----Original Message-----
From: piclist-bounces@MIT.EDU [mailto:piclist-bounces@MIT.EDU] On Behalf Of
Charles Craft
Sent: 17 July 2014 04:22
To: PIClist
Subject: [EE]: Dyson cordless vacuum motor technology

http://www.nytimes.com/2014/07/17/technology/personaltech/with-dc59-motorhe=
a
d-dyson-looks-to-create-the-ipad-of-vacuums.html

'The Dyson digital V6, the motor that sits at the heart of the DC59, is
about the size of a fist, and is built from specialized plastics that
maintain their shape while operating at high speeds. Unlike most motors in
household goods, Dyson's motor is brushless. This means it uses a set of
electromagnets that pulse on and off to coax an axle to spin. A more
traditional motor uses a series of carbon brushes that rub against a copper
winding, a system that creates friction, which reduces the motor's life spa=
n
and efficiency.

"You essentially double the efficiency using this kind of motor," Mr. Green
said. The resulting speeds are astonishing. The V6 spins at more than
110,000 revolutions per minute, making it one of the fastest commercial
motors ever made. By comparison, a Formula One race car's engine spins at
under 20,000 RPM.'



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