Structure for connecting branch pipe in high-pressure fuel manif

Details Structure for connecting branch pipe in high-pressure fuel manif Structure for connecting branch pipe in high-pressure fuel manif

1988-06-27

1990-02-13

Reese, Randolph A.

Joints and connections

Rod end to transverse side of member

Structure attached to rod end encompasses side

403191, 403234, 403235, 403254, 403263, 285156, 285199, 285332, 285357, F16B 708, F16B 900

Patent

active

049001809

ABSTRACT:
A structure for connecting a branch pipe in a high-pressure fuel manifold employs a nut to fasten the branch pipe to a main pipe, the nut having threaded surfaces which are simultaneously brought into thread engagement with a collar member fitted on the branch pipe at the neck portion contiguous with the top joint portion thereof which is brought into contact with the main pipe and with a coupling member which is secured to the main pipe in such a manner as to surround the peripheral wall thereof. Therefore, it becomes unnecessary to conduct a welding operation which has heretofore been needed to connect the joint portion of the branch pipe to the main pipe. The connecting structure satisfactorily endures ultra-high fluid pressure even under vibrations. In addition, there is no fear of fuel leaking out through the joint nor risk of the branch pipe coming off. It is also possible to reduce the torsional fatigue of the top portion of the branch pipe when tightly fastened to the main pipe to thereby prevent breakage of the branch pipe at the neck portion which is contiguous with the top portion.

REFERENCES:
patent: 1186325 (1916-06-01), Metzger
patent: 1803577 (1931-05-01), Weatherhead
patent: 2396163 (1946-03-01), Dies
patent: 4073513 (1978-02-01), Blakeley
patent: 4586733 (1986-05-01), Anderson, Jr.

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