Rotational position sensor and electronically controlled...

Details Rotational position sensor and electronically controlled... Rotational position sensor and electronically controlled...

2008-05-20

2008-05-20

Assouad, Patrick (Department: 2862)

Electricity: measuring and testing

Magnetic

Displacement

C324S207200

Reexamination Certificate

active

07375510

ABSTRACT:
A rotational position sensor having a compact and simple structure, in which a magnetic surface can be formed to have a more accurate shape, and an electronically controlled throttle device for an internal combustion engine, which employs the rotational position sensor. The rotational position sensor comprises a pair of substantially half disk-shaped magnetic cores disposed in an opposed relation to each other with a magnetic sensitive device interposed therebetween, a pair of substantially arc-shaped magnetic cores disposed in an opposed relation to each other along outer peripheries of the half disk-shaped magnetic cores, and a permanent magnet fixed in contact with at least one of the arc-shaped magnetic cores. Magnetic flux generating from the permanent magnet flows successively through one of the arc-shaped magnetic cores, the half disk-shaped magnetic cores, and the other of the arc-shaped magnetic cores, followed by returning to the permanent magnet. The half disk-shaped magnetic cores or the permanent magnet is rotatable, and the magnetic sensitive device detects an amount of the magnetic flux varying with rotation of the half disk-shaped magnetic cores or the permanent magnet.

REFERENCES:
patent: 5444369 (1995-08-01), Luetzow
patent: 5528139 (1996-06-01), Oudet et al.
patent: 5789917 (1998-08-01), Oudet et al.
patent: 6137288 (2000-10-01), Luetzow
patent: 6483296 (2002-11-01), Hamaoka
patent: 2002/0113681 (2002-08-01), Byram
patent: 2002/0130656 (2002-09-01), Hagio et al.
patent: 2005/0127900 (2005-06-01), Johnson et al.
patent: 10055288 (2001-05-01), None
patent: B2-2920179 (1999-04-01), None
patent: 11183114 (1999-07-01), None
patent: A-2000-28314 (2000-01-01), None
patent: A-2002-206913 (2002-07-01), None

Affiliated with

Also associated with

Rating

Rotational position sensor and electronically controlled... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rotational position sensor and electronically controlled..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotational position sensor and electronically controlled... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2761084