Back to results
US 2020/0392997 A1Published application
Bearing with an eccentric seal groove
AssigneeHamilton Sundstrand Corporation
InventorsZachary Allen Ray Le Duc, David Wakefield, Toby Chris Whitehead
Life of this patent
Estimating the term…
Abstract
A pump bearing for use in a gear pump including a top face, a side face perimetrically surrounding the top face, a bottom face opposed to the top face, a first bearing bore projecting from the top face to the bottom face defining an axis and configured to contain a drive-side shaft, and a groove within the side face located between the top face and the bottom face a variable depth in a direction perpendicular to the axis configured to a receive seal.
Claims20
A pump bearing for use in a gear pump comprising:
- a top face;
- a side face perimetrically surrounding the top face;
- a bottom face opposed to the top face;
- a first bearing bore projecting from the top face to the bottom face defining an axis and configured to contain a drive-side shaft;
- and
- a groove within the side face located between the top face and the bottom face a variable depth in a direction perpendicular to the axis configured to a receive seal.
3 more elements
A pump bearing system comprising:
- a top face;
- a side face circumferentially encircling the top face;
- a bottom face opposed to the top face;
- a first bearing bore projecting from the top face to the bottom face configured to contain drive-side shaft;
- and
- a first groove within the side face having located between the top face and the bottom face a variable depth configured to a receive seal;
- and
- a seal having a constant width positioned within the first groove.
5 more elements
A pump bearing system comprising:
- a top face;
- a side face circumferentially encircling the top face;
- a bottom face opposed to the top face;
- a first bearing bore projecting from the top face to the bottom face configured to contain drive-side shaft;
- and
- a first groove within the side face having located between the top face and the bottom face a variable depth configured to a receive seal;
- an edge defined where the top face meets the side face;
- an asymmetric pressure balance groove, having tapered ends, defined within a portion of the edge of the top face and the side face defining first depth from the top face;
- a housing for housing the fuel pump bearing;
- a drive shaft extending through the first bore and a driven shaft extending through the second bore;
- and
- a gear located on each of the drive shafts.
9 more elements
Dependencies are inferred from the claim text.