Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1997-05-16
2000-02-15
Oberleitner, Robert J.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
60538, 60545, 74567, 74569, B60T 842
Patent
active
060244224
ABSTRACT:
A variable pitch screw-driven system includes a rotatable drive screw powered by a motor actuator. A cam sleeve includes a nut section and is disposed about the drive screw and is linearly translatable in response to rotation of the drive screw. The cam sleeve includes a cam track with a fixed cam follower positioned to travel within a cam track. Linear translation of the cam sleeve is altered by tracking of the cam follower within the cam track such that rotation of the cam sleeve is effected simultaneously with rotation of the drive screw resulting in an effective variable pitch of the variable pitch screw-driven system wherein linear translation of the cam sleeve results from both rotation of the drive screw and rotation of the cam sleeve.
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Bock Gustavus Pearl
Drennen David Bernard
Wright Ryan Lovell
General Motors Corporation
Lipka Pamela J.
Oberleitner Robert J.
Sigler Robert M.
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