Insert and method for manufacturing fluid pump
AssigneeCaterpillar Inc.
InventorsRon L. SALE, Curtis J. GRAHAM, Luis A. VAZQUEZ
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Abstract
A cylinder block for a fluid pump includes a cylindrical body having a hub bore and a plurality of cylinder bores arranged about the hub bore, a hub insert disposed in the hub bore, and an anti-rotation body configured to prevent rotation of the hub insert relative to the cylindrical body. The cylindrical body and the hub insert together define a channel in which the anti-rotation body is inserted.
Claims20
A cylinder block for a fluid pump, the cylinder block comprising:
- a cylindrical body having a hub bore and a plurality of cylinder bores arranged about the hub bore;
- a hub insert disposed in the hub bore;
- and
- an anti-rotation body configured to prevent rotation of the hub insert relative to the cylindrical body,
- wherein the cylindrical body and the hub insert together define a channel in which the anti-rotation body is inserted.
A hub insert for repair or remanufacture of a cylinder block of a fluid pump, the hub insert comprising:
- a cylindrical body defining a shaft bore having at least one internal spline;
- a plurality of channels defined in the cylindrical body and extending parallel to the shaft bore;
- and
- a plurality of anti-rotation bodies configured to be inserted respectively into the plurality of channels.
A method for remanufacturing a cylinder block of a fluid pump, the method comprising:
- forming a hub bore in the cylinder block by removing a hub section of the cylinder block;
- disposing a hub insert in the hub bore;
- forming a channel in the hub insert and a cylindrical body of the cylinder block;
- and
- inserting an anti-rotation body into the channel to prohibit rotation of the hub insert relative to the cylinder block.
Dependencies are inferred from the claim text.