Permanent magnet starter

Details Permanent magnet starter Permanent magnet starter

1995-12-28

1997-04-08

Marmor, Charles A.

Machine element or mechanism

Engine starters

Automatic

74 6, 477 13, 290 48, 192 42, F02N 1506

Patent

active

056177585

ABSTRACT:
In a permanent magnet starter, a pinion clutch is smoothly engaged with a rotating shaft of an electric motor through a helical spline. A rotation restraint member is arranged at an outer periphery portion and this rotation restraint member is forcibly arranged by a magnetic field coil which is controlled from an outside portion. In a permanent magnet type motor having no magnetic field coil for exciting the motor, it is unnecessary to alter a motor unit. By the rotation force of an armature a pinion gear of the pinion clutch is moved, accordingly the permanent magnet starter for reducing the collision force during the meshing time of the pinion gear to a ring gear can be obtained. Further the permanent magnet starter having a superior gear meshing withstanding property and further without the lowering in the sealing property in the motor unit can be obtained.

REFERENCES:
patent: 2548268 (1951-04-01), Metsger
patent: 2578094 (1951-12-01), Sears
patent: 4507565 (1985-03-01), Hamano
patent: 4744258 (1988-05-01), Volino
patent: 4755688 (1988-07-01), Isozumi
patent: 4768392 (1988-09-01), Giometti
patent: 5023466 (1991-01-01), Isozumi
patent: 5044212 (1991-09-01), Isozumi et al.
patent: 5052235 (1991-10-01), Isozumi
patent: 5231307 (1993-07-01), Yumiyama et al.
patent: 5241871 (1993-09-01), McKnight et al.
patent: 5277075 (1994-01-01), Sakamoto et al.

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