16-03-2017 дата публикации
Номер: US20170074443A1
Принадлежит:
In one embodiment, the invention is directed to a high-pressure bi-directional sealing system having circumferentially extending outer support rings (), annular, axial seals () between the outer support rings () and a circumferentially extending inner support ring () located between the annular, axial seals (). The outer support rings (), seals (), and circumferentially extending inner support ring () are located within a space between an outer tube () and an inner tube () that is telescopically disposed within the outer tube (). Seals () and () are oriented in opposite directions. Specifically, the opening of seal () is facing in a first direction and the opening of seal () is facing in a second direction that is opposite the first direction. This configuration enables the high-pressure bi-directional sealing system to handle pressure in both directions. 17-. (canceled)8. A bi-directional sealing system , comprising:{'b': 1002', '1005, 'an outer tube () having an interior region and an interior surface () surrounding the interior region;'}{'b': 1004', '1002', '1004', '1002', '1004', '6', '5', '6', '5', '6', '1010', '1012', '1010', '1010', '1005', '1002', '1012', '1004', '6', '1004', '5', '1004', '1009', '1010, 'an inner tube () telescopically disposed within the interior region of the outer tube () such that the inner tube () and the outer tube () can move axially with respect to each other and rotate with respect to each other, the inner tube () having a first portion having a first outer diameter (D) and a second portion having a second outer diameter (D) that is less than the first outer diameter (D), wherein the difference in the diameters (D) and (D) forms a circumferentially extending shoulder (), a circumferentially extending wall () that is contiguous with the shoulder () and a circumferentially extending space between the shoulder () and the interior surface () of the outer tube (), the wall () forming a boundary between the first portion of the inner tube ...
Подробнее