Connection structure for branch pipe in high-pressure fuel manif

Details Connection structure for branch pipe in high-pressure fuel manif Connection structure for branch pipe in high-pressure fuel manif

1988-05-20

1989-05-23

Brown, Peter R.

Pipe joints or couplings

Connector for conduit housing electromagnetic line:

Having box and connector

285156, 285197, F16L 4104

Patent

active

048323764

ABSTRACT:
A connection structure for branch pipes in a high-pressure fuel manifold, comprising a plurality of through holes formed in the longitudinal direction in the peripheral wall of a main pipe serving to pass a high-pressure fuel and adapted to communicate with an inner flow passage and branch pipes abutted against the through holes, is prevented from the possibility of entailing leakage of fuel through the portions of connection or separation of the branch pipes from the main pipe by shaping the inner terminal peripheries of the through holes each in the form of an outwardly opening bearing surface, fixing joint pieces on the peripheral wall of the main pipe in such a manner as to enclose the bearing surfaces, allowing pressure head portions formed in advance on the connection terminal parts of the branch pipes as matched to the bearing surfaces to be held in tight contact with the bearing surfaces, and causing nuts incorporated in advance in the branch pipes to be helically engaged with threaded holes formed in the joint pieces.

REFERENCES:
patent: Re6488 (1875-06-01), Van Duzer
patent: 150109 (1874-04-01), Van Duzer
patent: 966870 (1910-08-01), Stoddard
patent: 2781500 (1957-02-01), Armstrong
patent: 3104121 (1963-09-01), Nordin et al.
patent: 3783842 (1974-01-01), Kuhn et al.
patent: 4073513 (1978-02-01), Blakely
patent: 4448447 (1984-05-01), Funk et al.
patent: 4540020 (1985-09-01), Watanabe et al.

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