Flexible pipe unit for use in exhaust pipe line of automotive en

Details Flexible pipe unit for use in exhaust pipe line of automotive en Flexible pipe unit for use in exhaust pipe line of automotive en

1997-05-29

1999-10-19

Hook, James F.

Pipes and tubular conduits

Combined

With hose protector

138112, 138114, 138120, 138155, F16L 5700

Patent

active

059671939

ABSTRACT:
A flexible pipe unit for an exhaust pipe line of an internal combustion engine comprises a metal bellows which has a front open end adapted to be connected to a first exhaust pipe and a rear open end adapted to be connected to a second exhaust pipe. A cylindrical outer case of metal is coaxially disposed about the metal bellows in a manner to define therebetween a cylindrical space. A first structure is arranged between a front end of the outer case and a front end of the bellows to achieve a mechanical connection therebetween. A second structure is arranged between a rear end of the outer case and a rear end of the bellows to achieve a mechanical connection therebetween. At least one of the first and second structures comprises a spring member by which the bellows and the outer case are resiliently connected.

REFERENCES:
patent: 3038553 (1962-06-01), Peters
patent: 3369829 (1968-02-01), Hopkins
patent: 3901539 (1975-08-01), Ijzerman
patent: 4243253 (1981-01-01), Rogers, Jr.
patent: 4315558 (1982-02-01), Katayama
patent: 4345430 (1982-08-01), Pallo et al.
patent: 4598428 (1986-07-01), Vykukal
patent: 5248170 (1993-09-01), Francis
patent: 5740839 (1998-04-01), Kuo et al.

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