Self-energizing disc brakes
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United States of America Patent
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-
Sep 5, 1989
Grant Date -
N/A
app pub date -
May 19, 1988
filing date -
May 29, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a self-energizing disc brake of the spreading type the actuator mechanism incorporates a restrictor in the form of a circumferentially extending discontinuous oil-seal which co-operates with radial faces on the two pressure plates. A secondary, or elevated, reservoir for liquid is therefore defined between said pressure plates by said oil-seal. Liquid can escape from this reservoir in order to enhance the cooling of the braking surfaces, defined by engagement of rotatable friction discs with end faces of a housing, pressure plates and a planar non-rotatable disc. In the brake shown in FIG. 6 two annular members act as seals on the ends of the outermost friction discs.
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