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US 11,111,960 B2Granted
Motor bearing lubrication arrangement
AssigneeNidec Motor Corporation
InventorsThomas E. Kirkley, Jr., Lawrence J. Wittman, Andrew F. Poag
Life of this patent
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Abstract
A motor includes a rotor rotatable about an axis, a housing defining a motor chamber receiving at least a portion of the rotor, and a bearing assembly rotatably supporting the rotor on the housing. The housing includes a pair of axially spaced apart endshields. The bearing assembly includes a bearing and lubricant collection structure associated with the bearing. The lubricant collection structure defines a collection chamber configured to collect lubricant from the motor chamber and direct the lubricant to the bearing.
Claims19
A motor comprising:
- a rotor rotatable about an axis;
- a housing defining a motor chamber enclosing at least a portion of the rotor;
- and
- a bearing assembly rotatably supporting the rotor on the housing,
- said bearing assembly including
- a bearing, and
- lubricant collection structure associated with the bearing,
- said lubricant collection structure defining a collection chamber configured to collect lubricant from the motor chamber,
- said lubricant collection structure including a bearing cap at least in part securing the bearing relative to the housing,
- said bearing cap defining a recessed channel therein,
- said recessed channel at least in part defining a lubricant supply passage at least in part extending through said bearing cap,
- said lubricant supply passage being in fluid communication with the collection chamber and configured to direct lubricant from the collection chamber through the bearing cap and to the bearing.
9 more elements
A motor comprising:
- a rotor rotatable about an axis;
- a housing defining a motor chamber enclosing at least a portion of the rotor;
- and
- a bearing assembly rotatably supporting the rotor on the housing,
- said bearing assembly including
- a bearing, and
- lubricant collection structure associated with the bearing,
- said lubricant collection structure defining a collection chamber configured to collect lubricant from the motor chamber,
- said lubricant collection structure including a bearing cap at least in part securing the bearing relative to the housing,
- said bearing cap including a recessed channel at least in part defining a lubricant supply passage,
- said lubricant supply passage being in fluid communication with the collection chamber and configured to direct lubricant from the collection chamber to the bearing,
- said bearing cap including a generally radially extending flange,
- said housing including a pair of raised, projecting ribs cooperating with the flange to at least in part define the collection chamber therebetween,
- each of said ribs extending generally radially along the flange and projecting axially relative to the flange,
- said ribs being arcuately spaced apart from each other.
12 more elements
Dependencies are inferred from the claim text.