LINEAR ELECTRIC MOTOR Russian patent published in 2009 - IPC H02K41/03 

FIELD: engines and pumps.

SUBSTANCE: invention is related to electric machines to linear step motors for discrete electric drive. Linear electric motor comprises the following: stator 1 that consists of magnetic body 2, inside of which between magnetic poles 3 magnetising coils 4, 5, 6 and 7 are installed, intermediate poles 8, which are fixed by non-magnetic inserts 9 on thread 10. Magnetic poles 3 of every coil 4, 5, 6, and 7 are separated between each other by non-magnetic rings 11, which are fixed by pins 12. End magnetic pole 13 is fixed to magnetic body 2 by bolt 14. Anchor 15 consists of magnetic 16 and non-magnetic 17 rings placed in alternating sequence on non-magnetic rod 18. Shape of section in ends of magnetic poles 3, intermediate poles 8 and end pole 13 is created with faces 19 and 20. Shape of section in ends of magnetic rings 16 is created by faces 21. The main magnetic flow F, which is separated into working magnetic flow F₁, passing through working gap 5, and parasite magnetic flows F₂ that swells to the side of magnetising coil 4, and F₃, that closes practically in center of anchor 15.

EFFECT: increased efficiency factor.

1 dwg