Dual area metering valve with variable reaction assembly
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United States of America Patent
Stats
-
Oct 19, 1982
Grant Date -
N/A
app pub date -
Nov 13, 1980
filing date -
Nov 13, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a service brake system for towed vehicles and particularly to a service brake system for double trailer combinations and a metering relay valve therefor. According to the invention, a variable reaction amplifying relay valve, controlled by service brake control line pressure, meters reservoir pressure from the leading trailer to the service brake control line in the trailing trailer. Below a predetermined pressure, the metering relay valve provides an amplified pressure output relative to input. Above this predetermined point, the output pressure is substantially one-to-one.
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Family
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Cited Art Landscape
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