LINEAR MOTOR Russian patent published in 2009 - IPC H02K33/12 

FIELD: electric engineering.

SUBSTANCE: invention is related to electric engineering, in particular to linear electric motors and may be used for drive of batchers, pumps, valves and other mechanisms. Linear motor consists of the following components: cylindrical body (1), in which two integral cylindrical "П"-shaped magnetic cores (3) with magnetising coils (4, 5) are fixed by bolts (2). Shaft (7) is inserted into holes of magnetic cores (3) via sliding bearings (6) with two springs (8), between which anchor (9) is fixed in the middle at the right angle. Angle (9) consists of two disk magnetic inserts (10), between which there is a non-magnetic layer (11). In non-magnetic layer (11) of anchor there are four slots provided for fixing balls (12) with springs (13), which are closed with limiting covers (14) with holes for ball (12). Ball (12) emerges from hole so that to get into groove on internal surface of body (1), when magnetising coils (4, 5) are disconnected. It is necessary for anchor (9) under action of springs (8) to take middle position and be fixed in it. Body (1), magnetic cores (3) and magnetic inserts (10) of anchor are made of soft magnetic material, and shaft (7) and non-magnetic layer (11) of anchor - from non-magnetic materials.

EFFECT: creation of amplitude control, and also possibility to fix anchor in any position within the limits of working travel.

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