Bearings – Rotary bearing – Antifriction bearing
Patent
1998-10-13
2000-08-15
Bucci, David A.
Bearings
Rotary bearing
Antifriction bearing
184 611, 184 622, 1841041, 415112, 415142, 415136, F01D 2516
Patent
active
061025771
ABSTRACT:
A bearing gallery thermal movement isolation device permits the inner bearing support ring of the bearing gallery to float freely relative to the outer bearing gallery housing under thermal expansion and contraction during engine operation without transmitting thermally induced movement or forces to the oil supply and scavenge lines, or to the cooling air supply line. An oil transfer tube isolation connector is disposed on an inward end of the transfer tube and on the bearing gallery. The connector includes a radially extending sleeve on the inner bearing support ring; and a sliding O-ring engaging the sleeve and transfer tube. An oil scavenge canal is defined between the O-ring and a threaded connection between the transfer tube and the oil supply boss of the bearing gallery. The oil scavenge canal intercepts any leakage of high pressure oil past the O-ring seal, recovers any such oil leakage within the low pressure oil scavenge circuit, and prevents high pressure oil leakage from the bearing gallery through the treaded connection.
REFERENCES:
patent: 1751448 (1930-03-01), Campell, Jr.
patent: 3312448 (1967-04-01), Hull, Jr. et al.
patent: 4156342 (1979-05-01), Korta et al.
patent: 4234197 (1980-11-01), Armancharla
patent: 4304522 (1981-12-01), Newland
patent: 4453784 (1984-06-01), Kildea et al.
patent: 4574584 (1986-03-01), Hovan
patent: 4770444 (1988-09-01), Hauk
patent: 5080555 (1992-01-01), Kempinger
patent: 5137310 (1992-08-01), Noel et al.
patent: 5160251 (1992-11-01), Ciokajlo
patent: 5429208 (1995-07-01), Largillier et al.
patent: 5489190 (1996-02-01), Sullivan
Astle Jeffrey W.
Bucci David A.
Pratt & Whitney Canada Corp.
Stallman Brandon C.
LandOfFree
Isolated oil feed does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Isolated oil feed, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Isolated oil feed will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1999965