Motor-driven throttle valve control device for internal...

Details Motor-driven throttle valve control device for internal... Motor-driven throttle valve control device for internal...

2007-12-04

2007-12-04

Argenbright, T. M. (Department: 3747)

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

C123S399000

Reexamination Certificate

active

11403942

ABSTRACT:
A spring to ensure default opening is constituted by a single piano wire where a return spring with a larger coil diameter and a default spring with a smaller coil diameter are connected via a connection arm formed with a spring hook. The spring with a smaller coil diameter is inserted in the spring with a larger coil diameter thereby the springs are overlapped in an axial direction as a duplex-winding spring structure. Further, a magnetic sensor is provided in a position inside the both spring with a larger coil diameter and spring with a smaller coil diameter.

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patent: 6386178 (2002-05-01), Rauch
patent: 6966297 (2005-11-01), Wayama et al.
patent: 2002/0078923 (2002-06-01), Torii
patent: 2005/0178359 (2005-08-01), Wayama et al.
patent: 1 179 665 (2003-05-01), None
patent: 1 099 842 (2003-07-01), None
patent: 2002-256894 (2002-11-01), None
patent: 2004-169626 (2004-06-01), None
patent: 2004-169627 (2004-06-01), None

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