초록 ▼

The bearing shell of a multiple-face hydrodynamic radial plain bearing has an internal surface which is composed of several identical arcuate sections whose radii of curvature slightly exceed the radius of curvature of the rotary component within the shell. The central portion of each section is nea

The bearing shell of a multiple-face hydrodynamic radial plain bearing has an internal surface which is composed of several identical arcuate sections whose radii of curvature slightly exceed the radius of curvature of the rotary component within the shell. The central portion of each section is nearer to the external surface of the rotary component than the other portions, and each such central portion has a hydrostatic pressure chamber receiving the liquid which is conveyed by a fluid flow machine wherein the bearing shell is used or a different liquid, such as a lubricant. The axial length of each chamber is between 40 and 80 percent of the length of the bearing shell, and the width of each chamber is between 20 and 80 percent of the length of the respective section, as considered in the circumferential direction of the shell. The provision of pressure chambers contributes to the ability of the bearing shell to prevent vibration of and/or to otherwise stabilize the rotary component as well as to take up pronounced bearing forces.

대표청구항 ▼

A multiple-face hybrid hydrostatic-hydrodynamic radial plain bearing for a rotary cylindrical component having a predetermined radius, particularly a component of a centrifugal pump, comprising a bearing shell having an axis, and an internal surface including a plurality of arcuate sections extendin

A multiple-face hybrid hydrostatic-hydrodynamic radial plain bearing for a rotary cylindrical component having a predetermined radius, particularly a component of a centrifugal pump, comprising a bearing shell having an axis, and an internal surface including a plurality of arcuate sections extending in the circumferential direction of the shell and having radii of curvature greater than said predetermined radius, each of said sections having a different center, and each of said section including a first portion which is nearer to said axis than all remaining portions of the respective section, said shell further having a hydrostatic pressure chamber in the first portion of at least one of said sections.