Throttle valve control device

Details Throttle valve control device Throttle valve control device

1998-02-12

1999-12-07

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

25112909, 25112911, 310 38, 335229, F02D 908

Patent

active

059965541

ABSTRACT:
A throttle valve control device is composed of a stator core with a solenoid and a rotor carrying a throttle valve. The rotor has a pair of poles which is composed of one or a plurality of rare-earth-metal permanent magnets magnetized in the radial thickness direction. The stator core has an inner periphery sorounding the rotor, and the inner periphery is smooth with no slot so that uniform distribution of magnetic flux can be formed in the inner periphery, thereby reducing the detent torque.

REFERENCES:
patent: 3644763 (1972-02-01), Skrobisch
patent: 4460859 (1984-07-01), Remus et al.
patent: 4491815 (1985-01-01), Idogaki et al.
patent: 4724811 (1988-02-01), Maisch
patent: 4850322 (1989-07-01), Uthoff et al.
patent: 5016588 (1991-05-01), Pagdin et al.
patent: 5287835 (1994-02-01), Fiorenza, II et al.
patent: 5334893 (1994-08-01), Oudet et al.

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