The Lynch motor is a unique axial gap permanent magnet brushed DC motor invented by Cedric Lynch. United States patent 4823039 amongst others cover the motor and its construction. The motor was developed in to a production item by Cedric Lynch and Trevor Lees in the early 1990s.
In this motor the iron laminations are rectangular, which made it possible to have them commercially made from material intended for this purpose without the expense of a special stamping tool. Because the flux passes through the laminations along one axis only, it became possible to take advantage of grain-oriented material normally used in large transformers. This has much better magnetic properties along the grain orientation but worse properties in other directions, so in the traditional type of motor it gives little or no benefit.
This motor went into small-scale production in 1988 with the firm London Innovation and later with the Lynch Electric Motor Company (LEMCO) . In 1989 four of them powered the boat "An Stradag", driven by the Countess of Arran, to a world record speed for an electric boat of just over 80 km/h (50 mph). The motor was adopted by the Swiss company ASMO for use in its electric go-kart drive systems. Its efficiency extends the life of the batteries and so improves the economics of running an electric karting track.The patents and license rights for the manufacturing of the Lynch motor are held by the Lynch IP company, which has sold a license to Briggs and Stratton to manufacture the ETEK motor.
LEMCO continued to manufacture motors and now trades under the name of LMC (Lynch Motor Company) "LMC Website" which now owns the Lynch IP company and therefore all rights and patents pertaining to the motor.
In 2009, Cedric Lynch appears to have parted company with LMC and is working for Agni Motors Agni Motors Website which is producing similar motors.
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