GB1344431A - Centrifugal lubricant filter apparatus - Google Patents

Abstract

1344431 Centrifugal separator KISKOROSI VEGYES ES EPITO IPARI SZOVETKEZET 8 Feb 1972 5807/72 Heading B2P A centrifugal lubrioant separator comprises a housing 13 having an inlet 1 for lubricant to be centrifuged and an outlet 36 for centrifuged lubricant, and a drive shaft 7, 26 mounted in the housing and carrying a separator rotor consisting of a plurality of concentric, equispaced cylindrical shells 40-46 forming annular centrifugal separating compartments, each of the compartments being connected to a common lubricant entry passage and to a common lubricant exit passage, the entry and/or the exit of each of at least some of said compartments being provided with a respective opening for determining the amount of lubricant flowing in operation there-through, the cross-sectional area of each opening being fixed and selected to be unequal to that of the associated compartment. The shells 40-46 are mounted between manifold discs 12 and 15 which are provided with openings, e.g. 47-53 as shown in disc 15, for the entry and exit of lubricant to and from the separating compartments and which are inclined at an angle of 5-65‹ to the radial direction relative to the rotational axis. The lubricant to be centrifuged flows from the inlet 1 through a passage 4 into space 8 and then through the tubular shaft 7 and radial bores 9 into a collector space 2 throughout which it is kept at a constant angular velocity by ribs 3 provided on the manifold disc 12 or on the locking disc 10, and from which it flows through the openings in the disc 12 into the annular compartments of the rotor where contaminant particles are separated out by centrifugal force on the walls of the shells. The purified lubricant flows out through the openings 47-53 into a space 34, also provided with accelerating ribs 35, and thence via bores 54, the shaft interior and outlet bores 21 at the end of shaft 26 into a spiral-shaped collector space 19, Fig. 2, and out through passages 31, 33 and outlet 36. Lubricant seeping along the shaft at 6, 28 and 30 flows into space 38 in the housing and thence through a return union 37.