JOURNAL OIL BEARING

摘要

A journal bearing for supporting a rotor shaft extending along a rotor axis having a support element, and at least two pads for supporting the rotor shaft, wherein the pads are supported by the support element is provided herein. The pads may include a bearing surface, wherein the support element and pads include a support for each pad. The support for each pad may include means to enable tilting for each pad around a tilt axis extending parallel to the rotor axis. The journal bearing may be assigned to a specific default rotation direction of the rotor shaft, wherein tilting of the pad into the rotation direction is positive tilting and tilting of the pad versus the rotation direction is negative tilting.

主权项

1. A journal oil bearing to be lubricated by oil for supporting a rotor shaft extending along a rotor axis, comprising:
a support element, and at least two pads for supporting said rotor shaft, wherein said pads are supported by said support element, wherein said pads respectively comprise a bearing surface, wherein said support element and pads comprise a support for each pad, wherein said support for each pad comprises means to enable tilting for each pad around a tilt axis extending parallel to said rotor axis, wherein said journal bearing is assigned to a specific default rotation direction of said rotor shaft, wherein tilting of said pad respectively into said rotation direction is positive tilting, wherein tilting of said pad versus said rotation direction is negative tilting, wherein said pad is during a design speed operation of said rotor shaft in a neutral tilting position, wherein said support is designed such that said positive tilting is enabled and limited from said neutral position to a certain positive tilting angle limit and that said negative tilting is enabled and limited from said neutral position to a certain negative tilting angle limit, wherein said negative tilting angle limit is between 0% and 50% of said positive tilting angle limit.