Exhaust double pipe of an internal combustion engine

Details Exhaust double pipe of an internal combustion engine Exhaust double pipe of an internal combustion engine

1976-07-12

1979-03-06

Freeh, William L.

Power plants

Internal combustion engine with treatment or handling of...

Having vibration attenuating, or expansion and contraction...

138148, 285229, F01N 708, F16L 2106, F16L 2712, F16L 5102

Patent

active

041423666

ABSTRACT:
An exhaust double pipe used for interconnecting an exhaust manifold with a catalytic converter of an internal combustion engine, comprising an inner pipe and an outer pipe. The outer pipe comprises a first pipe and a second pipe. The outer end of the first pipe is welded to a flange together with one end of the inner pipe. The outer end of the second pipe is welded to another flange together with the other end of the inner pipe. The inner end of the first pipe is directly fitted into the inner end of the second pipe, or is indirectly connected to the inner end of the second pipe via a spacer so as to be able to slide relative to the second pipe.

REFERENCES:
patent: 139968 (1873-06-01), O'Hara
patent: 2770259 (1956-11-01), Zallea
patent: 3685546 (1972-08-01), Sigmund
patent: 4031700 (1977-06-01), Yamazaki et al.

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