Device for controlling the actuating shaft of means for...

Details Device for controlling the actuating shaft of means for... Device for controlling the actuating shaft of means for...

2006-12-05

2006-12-05

Stashick, Anthony D. (Department: 3746)

Pumps

Condition responsive control of drive transmission or pump...

Disconnectable drive element

C417S374000

Reexamination Certificate

active

07144225

ABSTRACT:
Device for controlling the means (1) for recirculating a cooling fluid in engines (11a) in particular for vehicles and like, comprising a shaft (2) actuating the impeller, means (3,3b) for generating the movement of said shaft and means for transmitting the movement from the said generating means (3,3b) to the said shaft (2) of the impeller (1), in which said movement transmission means comprise a double-action coupling (30,40) comprising: magnetic means (31) integral with a rotor (30;130;230) and able to cooperate with corresponding magnetizable means (41;141;241) of a support (40;140;240) rotationally connected to the shaft (2) of the recirculating means and movable in an axial direction with respect thereto, so as to determine a first speed of rotation of the recirculating means (1), and electromagnetic means (22,22a) able to co-operate with a ring (41a;141a;241a) integral with said support (40;140;240) so as to determine a second and different speed of rotation of the pump impeller (1).

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