Vehicle engine brake
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United States of America Patent
Stats
-
Jun 17, 1997
Issued Date -
N/A
app pub date -
Nov 16, 1995
filing date -
Jun 27, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A vehicle engine brake comprising a vessel for the passage of gases having a main tube and a by-pass tube is provided. The by-pass tube defines a first opening into the main tube and a second opening into a more downstream location of the main tube. A first valve, to regulate the passage of gases through the main tube, is provided within the main tube between the first and second openings defined by the by-pass tube. A second valve to regulate the passage of gasses within the by-pass tube and means for controlling the first valve are also provided. Upon actuation of the first valve, gases in the vessel assist in the braking of the vehicle by creating a pressure change in the engine. The by-pass tube and second valve provide a means for relieving back pressure against the engine without losing continuity in braking assistance.
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