Connectable or disconnectable viscous coupling

Details Connectable or disconnectable viscous coupling Connectable or disconnectable viscous coupling

1990-09-19

1992-10-20

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Plural clutch-assemblage

192 485, 192 57, 192 71, 192 84AB, 192 84T, 180248, F16D 2108, F16D 2710, F16D 4702, B60K 2308

Patent

active

051562472

ABSTRACT:
A viscous coupling for a motor vehicle which may be connected or disconnected under load and which, in a reliable and interference-free way and with a short delay time, selectively permits the transmission or interruption of the driving force relative to the wheels of the rear and/or front axle, including a locking ring which is axially movable between two switching positions and may be moved into one of the two switching positions against the returning force of a spring by a force-actuated setting member which includes a firmly connected annular tongue which consists of a low-remanence ferromagnetic material and which may be transferred in an annular gap selectively loaded with a magnetic flow and formed by a soft iron core, with the axial length of the annular gap being greater than or equal to the axial distance covered by the setting member between the two switching positions.

REFERENCES:
patent: 1671057 (1928-05-01), Brainard
patent: 2101366 (1937-12-01), Frank
patent: 2375781 (1945-05-01), Gilfillan
patent: 2498399 (1950-02-01), Dodge
patent: 2621494 (1952-12-01), Cross
patent: 3446322 (1969-05-01), Wrensch
patent: 4885957 (1989-12-01), Taureg et al.
patent: 4899859 (1990-02-01), Teraoka
patent: 4966265 (1990-10-01), Wiese et al.

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