Automotive exhaust system decoupler with resilient sleeve
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United States of America Patent
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-
Dec 1, 1992
Grant Date -
N/A
app pub date -
Nov 19, 1991
filing date -
Nov 19, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flexible coupling for connecting an engine manifold to an exhaust pipe to relieve torque. Concentrically spaced flexible tubes, which have insulation filling the annular space between them, are connected to inlet and outlet tubes having interior ends located between the ends of the flexible tubes. The inlet and outlet tubes have enlarged upstream ends and smaller downstream ends. By overlapping the ends of the inlet and outlet tubes, the tubes are able to have relative angular movement when the flexible tubes bend due to engine torque. One or more separate tubes which also have enlarged and smaller upstream and downstream ends may be provided to overlap with the inlet and outlet tubes to allow bending of longer couplings.
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