Rotary ring seal with gas-dynamic lubrication for high-speed tur

Details Rotary ring seal with gas-dynamic lubrication for high-speed tur Rotary ring seal with gas-dynamic lubrication for high-speed tur

1982-05-07

1983-08-16

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 22, 277215, F16J 1534

Patent

active

043987303

ABSTRACT:
A rotary ring seal with gas-dynamic lubrication for high-speed turbomachines, particularly gas turbine engines, in which one of two complementary rings is radially perforated with apertures which extend in parallel with the ring sealing face and which are supplied with a cooling liquid. In order to achieve a durable seal, particularly with regard to high temperatures and speeds, a circumferentially periodically uniformly increasing and decreasing number of holes extending through the mating ring provide for the generation of a periodically alternating temperature and, consequently, an axial-expansion zone of the ring so as to produce a periodically uniformly undulated sliding surface on the mating ring which corresponds to the lubricant wedge profile of a gas-dynamic thrust bearing.

REFERENCES:
patent: 2858149 (1958-10-01), Laser
patent: 3383116 (1968-05-01), Carter
patent: 3610639 (1971-10-01), Staats
patent: 4305592 (1981-12-01), Peterson

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