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US 9,874,208 B2Granted
Bearing faces with fluid channels for gear pumps
AssigneeHamilton Sunstrand Corporation
InventorsLeo J. Veilleux, Jr., Lubomir A. Ribarov
Life of this patent
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Abstract
A bearing carrier has a bearing body including a first material. The bearing body has an exterior surface defining a bridge land with a finger cut and rotatably supports a first and second gear. The first and second gears intermesh with one another for pressurizing fluid traversing the gears between a fluid inlet and a fluid outlet defined in a housing enveloping the bearing carrier. The bridge land is defined in a second material integral with the first material.
Claims16
A bearing carrier, comprising:
- a bearing body of a first material having a shaft-receiving aperture and a bridge land with a finger cut to channel fluid pressurized by intermeshing of gears rotatably supported by the bearing carrier into an outlet defined by a housing enveloping the bearing carrier,
- wherein the bridge land includes a second material integral with the first material,
- wherein the first material and the second material define an exterior surface of the bearing body extending about the shaft-receiving aperture, wherein the second material extends only partially about the shaft-receiving aperture.
A method of fabricating a bearing carrier, comprising:
- at a bearing body formed from a native first material having a shaft-receiving aperture and a bridge land with a finger cut to channel fluid pressurized by intermeshing of gears rotatably supported by the bearing carrier into an outlet defined by a housing enveloping the bearing carrier,
- wherein the bridge land includes a second material integral with the first material, the first material underlying the second material,
- wherein the first material and the second material define an exterior surface of the bearing body extending about the shaft-receiving aperture, wherein the second material extends only partially about the shaft-receiving aperture;
- defining a near net shape contour of the bridge land in a surface of the second material.
1 more element
Dependencies are inferred from the claim text.