High pressure tube end form such as incorporated into a hydrogen fuel fill tube
AssigneeMartinrea International US Inc.
InventorLarry Harris
Life of this patent
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Abstract
A leak proof mid-line connection assembly including a female tube having a first flared end profile and a male tube having a second flared end profile capturing a sleeve which is supported upon the male tube. A threaded hex nut is supported over the male tube in contact with the sleeve. A female port includes a flare nut having an interiorly threaded interface. Upon successive insertion of the female tube and male tube into the female port, the hex nut is displaced forwardly into contact with the sleeve, with exterior threads of the hex nut rotatably interengaging with opposing interior threads configured upon the female flare nut in order to establish a sealed connection between a mating interface established between the flared end profiles.
Claims10
A process for forming a leak proof connection assembly between a male end form and a female port, comprising the steps of:
- configuring the female port to have an interiorly threaded interface;
- providing the male end form as an elongated tube and flare forming an end of said tube;
- contemporaneously pressing a sleeve onto said tube during flare forming of the male end form;
- supporting a threaded hex nut over the male tube and, upon insertion of the male tube end into the female port, displacing the hex nut forwardly into contact with the male flared end;
- and
- rotatably interengaging the exterior threads of the hex nut with the interior threads configured upon the female port in order to establish the sealing connection.
Dependencies are inferred from the claim text.