Coaxial starting motor

Details Coaxial starting motor Coaxial starting motor

1993-05-26

1995-02-21

Look, Edward K.

Machine element or mechanism

Engine starters

Automatic

74 7A, 290 38A, 290 38C, F02N 1100

Patent

active

053905555

ABSTRACT:
A coaxial starting motor comprises a d.c. motor whose armature has a hollow rotary shaft projected at its end forwardly, and which has a rear end provided with an electromagnetic switch which is arranged to be coaxial therewith, and which has a movable core attracted by a fixed core on energizing an exciting coil to forwardly move a movable rod with the movable core and causing a movable contact supported by the movable rod to get in touch with a fixed contact wherein the electromagnetic switch has a fixed core partitioning a contact chamber and a movable core chamber so as to prevent contact powder from entering the movable core chamber and hamper the sliding motion of the movable core.

REFERENCES:
patent: 4816712 (1989-03-01), Tanaka
patent: 4881416 (1989-11-01), Isozumi
patent: 4978874 (1990-12-01), Isozumi et al.
patent: 5097715 (1992-03-01), Isozumi
patent: 5111093 (1992-05-01), Tanaka
patent: 5307700 (1994-05-01), Spellman et al.
patent: 5307702 (1994-05-01), Spellman et al.

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