Electrical generator or motor structure – Dynamoelectric – Reciprocating
Patent
1977-01-05
1979-09-25
Duggan, Donovan F.
Electrical generator or motor structure
Dynamoelectric
Reciprocating
H02K 3304
Patent
active
041692349
ABSTRACT:
A reciprocating motor in one embodiment includes a rigid base having a plurality of rectangular, thin, flat, steel springs each attached at one edge to the base. One or more elongated rigid members are attached to the opposite edges of the flat springs for substantially linear reciprocating motion as controlled by the thin, flat springs. At least one laminated, iron, armature core is rigidly attached to each of the reciprocating members. The laminae are positioned in the armature to be substantially normal to the direction of motion. The reciprocating motor further includes a laminated, iron stator core and a field coil securely mounted to the base for excitation by a suitably periodic electric current. The laminae in the stator core are also positioned substantially normal to the direction of the reciprocating motion. Due to the disposition of the armature and the stator laminae substantially normal to the direction of reciprocation, the magnetic flux generated in the stator laminae by current in the field coil provides an extended force-displacement characteristic in the direction of reciprocation. One alternate embodiment of the reciprocating motor additionally includes a counterweight armature attached to a plurality of rectangular, flat springs. The counterweight armature includes one or more laminated, iron, armature cores affixed thereto and is moved by the stator in a direction opposite to the direction of movement of a work armature to thereby maintain the base in a relatively stationary condition, substantially free from vibration.
REFERENCES:
patent: 2668251 (1954-02-01), List
patent: 2681419 (1954-06-01), Sherwen
patent: 2733360 (1956-01-01), List
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