F - Mech Eng,Light,Heat,Weapons – 16 – C
Patent
F - Mech Eng,Light,Heat,Weapons
16
C
308/1.6
F16C 32/06 (2006.01) F16C 33/10 (2006.01)
Patent
CA 1261380
ABSTRACT A hydrodynamic slide bearing unit has a first race surface (3) in a housing and a second race surface (1) on a shaft sleeve. Between said surfaces there is at least one lubricant load-bearing pressure zone (9). The pressure (p) in the direction of movement will increase from an initial pressure (Po) at the frontal portion of the pres- sure zone (9) to a higher pressure (Pm) at the central part and decrease again to the initial pressure (Po). The load bearing pressure zone is a portion of a slide bearing structure, that further includes a feed opening for lubricant ahead of the pressure zone as viewed in the direction of movement or flow, an outtake means for col- lection of the lubricant at a pressure higher than the initial pressure (Po), and a return means to feed back the lubricant to the load bearing pressure zone through said feed opening (5). The outtake means of the slide bearing section com- prises elongate pressure relief openings (14, 15; 41, 42, 41', 42') downstreams of the feed opening (13; 37, 37') on either side of the pressure zone (16; 39, 39') and mainly extending in the direction of movement, in order to relieve those portions (17, 18; 43, 44) of the bearing surfaces which are situated outside the relief opening from the higher pressure (pm) prevailing in the hydrodynamic bear- ing, said pressure relief openings thereby eliminating the leakage flow perpendicular to the flow direction and return it to the feed opening (13; 37, 37').
504609
Perley-Robertson Hill & Mcdougall Llp
Schnittger Jan R.
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