Limited slip differential device

Details Limited slip differential device Limited slip differential device

2007-07-24

2007-07-24

Pang, Roger (Department: 3681)

Planetary gear transmission systems or components

Differential planetary gearing

Bevel gear differential

C335S279000

Reexamination Certificate

active

11048769

ABSTRACT:
A limited slip differential device has differential gears, a clutch to limit the differential function of the differential gears, and a electromagnetic solenoid including a plunger and a coil. The plunger is set to move forward to engage the clutch by electromagnetic force of the coil in a differential limit state and move backward by a return spring to disengage said clutch in a differential limitless state. The plunger contacts with a contacting member in at least one state of the differential limit state and the differential limitless state, and their contact area is set smaller than a facing area between them in at least the one state.

REFERENCES:
patent: 4539542 (1985-09-01), Clark
patent: 4604600 (1986-08-01), Clark
patent: RE32860 (1989-02-01), Clark
patent: 5208570 (1993-05-01), Nippert
patent: 5234265 (1993-08-01), Tyler
patent: 6769524 (2004-08-01), Yasui et al.
patent: 2003/0162622 (2003-08-01), Fusegi et al.
patent: 2006/0052207 (2006-03-01), Teraoka

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