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A linear induction motor (LIM) is an alternating current (AC), asynchronous linear motor that works by the same general principles as other induction motors but is typically designed to directly produce motion in a straight line. Characteristically, linear induction motors have a finite primary or secondary length, which generates end-effects ...
The history of linear electric motors can be traced back at least as far as the 1840s, ... A feasible linear induction motor is described in U.S. patent 782,312 ...
German, a feasible linear induction motor described in patent form for driving trains or lifts. U.S. patent 782,312: 1935, Hermann Kemper: German, built a working linear induction motor 1945–1949, Eric Laithwaite: British, first full-size working model of linear induction motor
The RTV 31 at Earith, Cambridgeshire, during testing in May 1973. Tracked Hovercraft was an experimental high-speed train developed in the United Kingdom during the 1960s. It combined two British inventions, the hovercraft and the linear induction motor, in an effort to produce a train system that would provide 250 mph (400 km/h) inter-city service with lowered capital costs compared to other ...
An induction motor can be used as an induction generator, or it can be unrolled to form a linear induction motor which can directly generate linear motion. The generating mode for induction motors is complicated by the need to excite the rotor, which begins with only residual magnetization.
The linear motor and its application to tracked hovercraft (1971) Linear electric motors (1971) Mills & Boon Monographs and Technical Library; Experiments with a linear induction motor (1971) Exciting electrical machines (1974) All things are possible: an engineer looks at research and development (1976) Transport without wheels ed. (1977)
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Difference between induction and reluctance force [1] Example of a switched reluctance linear motor . Switched reluctance linear motors (SRLMs) (also known as linear switched reluctance motors (LSRMs), variable reluctance linear motor or switched reluctance linear machines) are a type of electric machines called linear motors which work based on the principle of a varying magnetic reluctance ...