Bearing assembly and method
AssigneeDresser-Rand Company
InventorsHerve H. Dourlens, Dale F. Marshall, Philippe Auber
Life of this patent
Estimating the term…
Abstract
A bearing assembly and method in which a bearing cage is disposed around a rotating member and a housing is disposed around the cage. A first portion of the radial outer surface of the cage extends in a slightly spaced relation to the corresponding portion of the inner surface of the housing, and a second portion of the radial outer surface of the cage projects from the first portion in a radial direction and engages the corresponding portion of the inner surface of the housing.
Claims18
A bearing assembly for a rotor, the assembly comprising:
- a cage member surrounding the rotor;
- a housing member surrounding the cage member;
- at least one axially-extending groove formed in one of the members to form a generally axially-extending cantilevered portion extending between the groove and a circumferential surface of the other member, at least a section of the cantilevered portion being generally engageable against the circumferential surface of the other member;
- a clearance formed between at least a portion of the radial outer surface of the cage member and the corresponding portion of the inner surface of the housing member;
- and
- a passage extending through the housing member and registering with the clearance for passing oil to the clearance.
A bearing assembly for a rotor, the assembly comprising:
- a cage member surrounding the rotor;
- a housing member surrounding the cage member;
- at least one axially-extending groove formed in one of the members to form a cantilevered portion extending between the groove and the corresponding surface of the other member;
- a clearance formed between at least a portion of the radial outer surface of the cage member and the corresponding portion of the inner surface of the housing member;
- and
- a passage extending through the housing member and registering with the clearance for passing oil to the clearance;
- wherein a first portion of the radial outer surface of the cage member extends in a slightly spaced relation to the corresponding portion of the inner surface of the housing member to form the clearance, and a second portion of the radial outer surface of the cage member projects from the first portion in a radial direction and engages the corresponding portion of the inner surface of the housing member to prevent oil leakage from the clearance.
A bearing assembly for a rotor, the assembly comprising:
- a cage member surrounding the rotor;
- a housing member surrounding the cage member;
- at least one axially-extending groove formed in the housing member to form a cantilevered portion extending between the groove and the corresponding outer radial surface of the cage member;
- a clearance formed between at least a portion of the radial outer surface of the cage member and the corresponding portion of the inner surface of the housing member;
- and
- a passage extending through the housing member and registering with the clearance for passing oil to the clearance.
A bearing assembly for a rotor, the assembly comprising:
- a cage member surrounding the rotor;
- a housing member surrounding the cage member;
- at least one axially-extending groove formed in the cage member to form a cantilevered portion extending between the groove in the cage member and the corresponding surface of the housing member;
- at least one axially-extending groove formed in the housing member to form a cantilevered portion extending between the groove in the housing member and the corresponding surface of the cage member;
- a clearance formed between at least a portion of the radial outer surface of the cage member and the corresponding portion of the inner surface of the housing member;
- and
- a passage extending through the housing member and registering with the clearance for passing oil to the clearance.
Dependencies are inferred from the claim text.