In order to return the fluid which has penetrated into the sealing gap of a floating ring seal, recesses with closed edges are machined inside the region permanently covered by the sealing surfaces in a sealing ring in which the fluid is drawn to an end of the recess very close to the chamber to be sealed and hydrodynamically taken to a high pressure. Mirror-image recesses are effective regardless of the direction of rotation. The recesses are machined in very small sliding surfaces of ceramic sealing rings using a laser beam. Such a floating ring seal has a relatively low leakage rate with low friction. Two fluids can be mutually sealed with a double recess array.
申请公布号
DE4209484(A1)
申请公布日期
1993.10.21
申请号
DE19924209484
申请日期
1992.03.24
申请人
MUELLER, HEINZ KONRAD, PROF. DR.-ING., 7050 WAIBLINGEN, DE
发明人
MUELLER, HEINZ KONRAD, PROF. DR.-ING., 7050 WAIBLINGEN, DE