Brush rigging for dynamoelectric machines
AssigneeGeneral Motors Corporation
InventorJeffrey L. Mummert
Life of this patent
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Abstract
Brush rigging for a dynamoelectric machine such as an electric cranking motor for cranking an internal combustion engine. A support carries a plurality of radially extending brush holders each of which slidably supports a brush. The brushes are urged radially inwardly by an elastomeric band that is formed of electrical insulating material. The band directly engages the outer ends of the brushes and a plurality of pins that are carried by the support. The pins are located between pairs of brush holders.
Claims5
A brush rigging for a dynamoelectric machine comprising, a support, a plurality of circumferentially spaced and radially extending brush holders carried by said support a brush slidably supported by each brush holder, each brush holder being positioned to guide a respective brush for movement radially inwardly, a plurality of pins carried by said support, and an endless elastomeric band formed of electrical insulating material having inner surface portions directly engaging outer surface portions of said brushes and outer surface portions engaging said pins, said pins being located radially inwardly of the outer surface portions of said brushes that are engaged by said band, said band forcing said brushes radially inwardly.
Dependencies are inferred from the claim text.