Method for remanufacturing flywheel

Patent metadata

Field	Value
Publication number	US-9670984-B2
Application number	US-201514589060-A
Country	US
Kind code	B2
Filing date	Jan 5, 2015
Priority date	Jan 5, 2015
Publication date	Jun 6, 2017
Grant date	Jun 6, 2017

Abstract

A method for remanufacturing of a flywheel is provided. The flywheel has a damage area thereon. The method includes removing a portion of a material from a face of the flywheel containing the damage area to form a recessed portion, wherein the recessed portion has a ring shaped profile. The method also includes aligning an insert within the recessed portion of the flywheel, wherein the insert is ring shaped and is configured to fit within the recessed portion of the flywheel. The method further includes coupling the insert within the recessed portion of the flywheel.

First claim

What is claimed is:

1. A flywheel comprising:
a front face configured to contact with a clutch plate;
a rear face spaced from and generally parallel with the front face, the front and rear faces defining a thickness of the flywheel therebetween, and
at least one remanufactured surface formed on at least one of the front face or the rear face of the flywheel, wherein the at least one remanufactured surface has a planar configuration, the at least one remanufactured surface including:
an insert coupled within a recessed portion formed on the at least one of the front face or the rear face of the flywheel, wherein the recessed portion is formed having a ring shaped profile corresponding to a removed portion of a material of the flywheel containing a damage area, wherein the insert defines a machined surface coplanar with the at least one of the front face or the rear face of the flywheel.

2. The flywheel of claim 1 , wherein a material of the insert is same as the material of the flywheel.

3. The flywheel of claim 1 , wherein a material of the insert is different from the material of the flywheel.

4. The flywheel of claim 1 , wherein the insert is coupled within the recessed portion using mechanical fasteners.

5. The flywheel of claim 1 , wherein the insert has a ring shape.

6. An engine system comprising:
an engine block;
a crankshaft;
a clutch plate;
a gear member; and
a flywheel comprising:
a front face contacting with the clutch plate;
a rear face, the front and rear faces defining a thickness of the flywheel therebetween, and
at least one remanufactured surface formed on at least one of the front face or the rear face of the flywheel, wherein the at least one remanufactured surface has a planar configuration, the at least one remanufactured surface including:
an insert coupled within a recessed portion formed on the at least one of the front face or the rear face of the flywheel, wherein the recessed portion is formed having a ring shaped profile corresponding to a removed portion of a material of the flywheel containing a damage area, wherein the insert defines a machined surface coplanar with the at least one of the front face or the rear face of the flywheel.

7. The engine system of claim 6 , wherein a material of the insert is same as the material of the flywheel.

8. The engine system of claim 6 , wherein a material of the insert is different from the material of the flywheel.

9. The engine system of claim 6 , wherein the insert is coupled within the recessed portion using mechanical fasteners.

10. The engine system of claim 6 , wherein the insert has a ring shape.

Assignees

• Caterpillar Inc

Inventors

• Cavanaugh Daniel T
• Graham Curtis J

Classifications

• B23P6/00

  Restoring or reconditioning objects (straightening or restoring form of sheet metal, metal rods, metal tubes, metal profiles, or specific articles made therefrom B21D1/00, B21D3/00; repairing defective or damaged objects by casting techniques B22D19/10) · CPC title

• F02F7/0043

  Arrangements of mechanical drive elements · CPC title

• F16D1/076

  by clamping together two faces perpendicular to the axis of rotation, e.g. with bolted flanges · CPC title

• F16F15/30 Primary

  Flywheels (F16F15/16, F16F15/28 take precedence; suppression of vibrations in rotating systems using elastic members or friction-damping members moving with the system, {i.e. split flywheels or single masses connected to a hub by elastic members or friction-damping members} F16F15/12; rotary-body aspects in general F16C13/00, F16C15/00) · CPC title

• F16F2230/46

  Maintenance · CPC title