Electrical generator or motor structure – Dynamoelectric – Linear
Reexamination Certificate
2011-03-01
2011-03-01
Leung, Quyen (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Linear
C310S012240, C310S015000, C310S035000, C310S071000, C310S089000, C310S101000, C310S144000, C318S119000, C318S121000, C318S122000, C318S126000, C318S135000, C074S473100, C074S473230
Reexamination Certificate
active
07898121
ABSTRACT:
A linear actuator includes permanent magnet annuli arranged about an armature core for axial movement in a tubular stator upon energization of coils arranged in concentric association with the armature. The stator has portions extending radially inwards of the coils and towards one another beneath each coil, which define a spacing between the coil and the armature. The annuli have a substantially radially magnetized structure and the coils are configured for single phase power input. In one embodiment (FIG.6), two pairs of spaced annuli are arranged on the core, wherein the axial length of the outermost annuli is half the axial length of the inner annuli.
REFERENCES:
patent: 4349757 (1982-09-01), Bhate
patent: 4422060 (1983-12-01), Matsumoto et al.
patent: 4785816 (1988-11-01), Dow et al.
patent: 4924123 (1990-05-01), Hamajima et al.
patent: 5896076 (1999-04-01), van Namen
patent: 6508139 (2003-01-01), Onodera
patent: 6739211 (2004-05-01), Yamamoto et al.
patent: 6856049 (2005-02-01), Hirata
patent: 7469614 (2008-12-01), Wang
patent: 2002/0020236 (2002-02-01), Onodera
patent: 2004/0226801 (2004-11-01), De Jonge et al.
patent: 2004/0244524 (2004-12-01), Russell
patent: 2005/0023905 (2005-02-01), Sakamoto
patent: 2005/0223835 (2005-10-01), Wang
patent: 2006/0049701 (2006-03-01), Sato
patent: 2006/0181158 (2006-08-01), Tajima et al.
patent: 2008/0220930 (2008-09-01), Ramsay et al.
patent: 3346917 (1984-09-01), None
patent: 1225373 (2002-07-01), None
patent: 2829551 (2003-03-01), None
patent: 2004082103 (2004-09-01), None
J.C. Wheals et al., “Automated manual transmissions—A european survey and proposed shift quality metrics,” SAE 2002 World Congress, Detroit, MI, USA, Transmission & Driveline Systems Symposium (Part C)—AMT/Transmission Systems. Document No. 2002-01-0929, Mar. 2002.
G. Iordanidis, D. Holliday, P. Mellor, “Fast acting sequential embedded electric gearbox actuator”, SAE 2005 World Congress, Detroit, MI USA, Transmission & Driveline Systems Symposium—Manual Transmissions/Automated Manual Transmission (Part 7), Document No. 2005-01-1781, Apr. 2005.
A.J. Turner, K. Ramsay, R.E. Clark, D. Howe, “Development of high force electromechanical linear actuator for shift-by-wire automated manual transmission,” SAE 2006 World Congress, Detroit, MI USA, Transmission & Driveline Systems Symposium—Components (Part 8). Document No. 2006-01-0360, Apr. 2006.
J. Wang, D. Howe, “Design optimization of radially magnetized iron-cored, tubular permanent magnet machine and drive systems,” IEEE Transactions on Magnetics, vol. 40, No. 5, Sep. 2004, pp. 3262-3277.
S.E. Moon, M.S. Kim, H. Yen, H.S. Kim and S.H. Hwsang, “Design and implementation of clutch-by-wire system for automated manual transmissions,” International Journal of Vehicle Dynamics, vol. 36, No. 1, pp. 83-100 (2004).
A.J. Turner, K. Ramsay, “Review and Development of Electromechanical Actuators for Improved Transmission Control and Efficiency,” SAE 2004 World Congress & Exhibition, Mar. 2004, Detroit, MI USA, Session: Transmission & Driveline Systems Symposium—Components (Part 6 of 7). Document No. 2004-01-1522.
I. Boldea, S.A. Naper, “Linear electric actuators and generators,” IEEE Transactions on Enter Conversion, Sep. 1999, 14(3); 712-17.
Clark Richard E.
Ramsay Keith
Turner Andrew
Gifford Krass Sprinkle Anderson & Citkowski P.C.
Kim John K
Leung Quyen
Ricardo UK Ltd
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