Low particulate rotary union

Details Low particulate rotary union Low particulate rotary union

1995-06-01

1996-11-05

Arola, Dave W.

Pipe joints or couplings

With leakage or drip disposal

Weep holes

285276, F16L 5500

Patent

active

055709087

ABSTRACT:
A rotary union (20) is disclosed for allowing fluid to flow between a first environment and a second environment where the first environment is rotating with respect to the second environment. The rotary union includes a pedestal (38) having a longitudinal pedestal bore (50) for transmitting fluid through pedestal (38); a housing (26) having a longitudinal housing bore (34) for transmitting fluid through housing (26). The diameter of longitudinal pedestal bore (50) of pedestal (38) is greater than the diameter of longitudinal housing bore (34) of housing (26). Housing (26) is coupled to the first environment and pedestal (38) coupled to the second environment; and rotating support structure (58, 60) is provided for coupling housing (26) and pedestal (38) with a gap (70) formed between a top portion of pedestal (38) and housing (26) with rotating support structure (58, 60) disposed below the gap with respect to the applicable gravity field. Rotary union (20) may further include a containment vessel (90) for capturing excess fluid and an adjustment sleeve (72) for adjusting gap (70) between pedestal (38) and housing (26).

REFERENCES:
patent: 3129960 (1964-04-01), Schrodt
patent: 3957294 (1976-05-01), Hoban et al.
patent: 4848400 (1989-07-01), Grant et al.
patent: 5058927 (1991-10-01), Miwa
patent: 5149141 (1992-09-01), Newhouse
patent: 5169408 (1992-12-01), Biggerstaff et al.
patent: 5203592 (1993-04-01), Takada

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