Brake cylinder apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Aug 20, 2002
Grant Date -
N/A
app pub date -
Nov 16, 2000
filing date -
Nov 16, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A brake cylinder apparatus in which both the service brake and the spring brake, used for such things as a parking brake, can operate, and at the same time can shorten the length of the axial direction. A clutch is provided that couples the second piston with the rod when the pressurized fluid has stopped acting on the second action chamber of the spring brake and the second piston has started to move towards the rod. This clutch means comprises a screw provided on the outer circumference of the rod, a nut element supported on the second piston through the medium of a bearing such that it can rotate freely, and that meshes with the screw, and a stopping means that stops the rotation of the nut element when the second piston starts to move towards the rod.
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