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Synchronous reluctance motors (SynRM) have an equal number of stator and rotor poles. The projections on the rotor are arranged to introduce internal flux "barriers", holes that direct the magnetic flux along the so-called direct axis. The number of poles must be even, typically 4 or 6.
Reaction Motors, Inc. (RMI) was an early American maker of liquid-fueled rocket engines, located in New Jersey.RMI engines with 6,000 lbf (27 kN) thrust powered the Bell X-1 rocket aircraft that first broke the sound barrier in 1947, and later aircraft such the X-1A, X-1E, and the Douglas D-558-2 Skyrocket.
In 1941, Lawrence founded Reaction Motors, Inc. with John Shesta, James Wylde, and Hugh Franklin Pierce in order to secure an offered $5,000 Navy contract for rocket development. Reaction Motors, Inc. continued under the aegis of Lawrence until his departure in 1953 to pursue a variety of positions with Chrysler , culminating in his promotion ...
A barrier vehicle (BV), barrier wagon, match wagon or translator coach is used to convert between non-matching railway coupler types. This allows locomotives to pull railway vehicles or parts of a train with a different type of coupler.
Between each segment is a barrier that prevents the other segments from burning until ignited. At ignition of a second pulse, the burning of the propellant generally destroys the barrier. The benefit of the pulsed rocket motor is that, by the on-command ignition of the subsequent pulses, near-optimal energy management of the propellant burn can ...
The most common approach to powering an SRM is to use an asymmetric bridge converter. The switching frequency can be 10 times lower than for AC motors. [3] The phases in an asymmetric bridge converter correspond to the motor phases. If both of the power switches on either side of the phase are turned on, then that corresponding phase is actuated.
Barrier transfer machines can typically move their barrier segments anywhere between 4 and 24 feet (1.2 and 7.3 m) in one pass, usually at a speed between 5 and 10 miles per hour (8.0 and 16.1 km/h). Some models of the machine hold 50 feet (15 m) of barrier at a time as they are engaged in transferring.
The lawsuit against the Ford Motor Company was opened in 1978 and ended in 1990. Kearns sought $395 million in damages. He turned down a $30 million settlement offer in 1990 and took it to the jury, which awarded him $5.2 million; Ford agreed to pay $10.2 million rather than face another round of litigation.