Motors: expansible chamber type – Working member position feedback to motive fluid control – Follower type
Reexamination Certificate
2007-03-06
2007-03-06
Lazo, Thomas E. (Department: 3745)
Motors: expansible chamber type
Working member position feedback to motive fluid control
Follower type
C074S3880PS, C180S421000
Reexamination Certificate
active
11111684
ABSTRACT:
A servo-steering valve for a hydraulic servo-steering arrangement has an input shaft, an output shaft, a torsion rod which biases the input shaft and the output shaft relative to each other into a central position, and a valve which consists of a valve sleeve and a valve shaft which with a rotation of the input shaft relative to the output shaft are rotated relative to each other. An adjustment drive is provided, which can rotate one component of the servo-steering valve with respect to another, so that a superimposition value is superimposed on an input value which is given through the actuation of the input shaft.
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Document Bibliography and Abstract for DE 36 34 216 from http://v3.espacenet.com/textdoc?DB=EPODOC&IDX=DE3634216&F=0, printed Jul. 14, 2005.
Document Bibliography and Abstract for DE 203 14 723 from http://v3.espacenet.com/textdoc?DB=EPODOC&IDX=DE20314723U&F=0, printed Jul. 14, 2005.
Document Bibliography and Abstract for DE 203 16 602 from http://v3.espacenet.com/textdoc?DB=EPODOC&IDX=DE20316602U&F=0, printed Jul. 14, 2005.
Lazo Thomas E.
MacMillan Sobanski & Todd LLC
TRW Automotive GmbH
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