Exhaust-gastight decoupling element from stripwound hoses

Details Exhaust-gastight decoupling element from stripwound hoses Exhaust-gastight decoupling element from stripwound hoses

2005-05-27

2009-08-11

Brinson, Patrick F (Department: 3754)

Pipes and tubular conduits

Distinct layers

Spaced

C138S114000, C138S109000, C138S135000

Reexamination Certificate

active

07571745

ABSTRACT:
For connection of exhaust system pipe work, which is subject to vibration, a typical example of an application being in vehicle exhaust systems, a gas-tight decoupling element produced from stripwound hoses is used, which consists of two coaxially arranged, multi-layer stripwound metal hoses and axial edge elements. These elements form an annular cavity between the two stripwound hoses with a suitable pneumatic connection which is pressurized in the operating condition using ambient air or cleaned exhaust gas, the pressure being as high or higher than the dynamic pressure which is built up in the inside cylindrical exhaust system cavity as a result of exhaust gas flow.

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