Ventilation device for a combined spring accumulator and operating brake cylinder
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United States of America Patent
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Sep 6, 2011
Grant Date -
May 22, 2008
app pub date -
Nov 11, 2005
filing date -
Feb 9, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A ventilation device provided which includes a valve arranged in a combined spring accumulator and operating brake cylinder. On depressurization of a pressure medium chamber in the spring accumulator brake cylinder, ventilation of a spring accumulator chamber of the spring accumulator brake cylinder, from the pressure medium chamber of the operating brake cylinder, is effected. A chambers is provided on the side of a valve piston in the valve, facing away from a control chamber, which, with an open valve, connects a first working connections to this chamber and, hence, to a second working connection, arranged axially on the front side of the valve, by means of a passage provided in the valve piston.
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