Apparatus and method of assembling a piston on a shaft over a lip seal
AssigneeGeneral Motors Corporation
InventorKrishna K. Relan
Life of this patent
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Abstract
A method and apparatus for installing a piston over a lip seal on a shaft includes a cylinder or primary force and a weight member or secondary force. The primary force and secondary force are coupled by a resilient member, which will permit the secondary force to retract from the assembly process when the force needed to complete the assembly is above a predetermined value.
Claims14
A method of assembling a piston into an installed position on a shaft over a lip seal disposed on the shaft, the method comprising:
- positioning the piston to be slidably disposed on the shaft and adjacent to the lip seal;
- exerting an apply force on the piston to translate the piston over the lip seal to the installed position;
- monitoring a reaction force exerted by the lip seal on the piston as the piston translates into the installed position over the lip seal;
- and
- determining a condition of the lip seal based on the reaction force.
A method of assembling a piston into an installed position on a shaft over a lip seal disposed on the shaft, the method comprising:
- positioning the piston to be slidably disposed on the shaft and adjacent to the lip seal;
- exerting an apply force on the piston through a spring to translate the piston over the lip seal to the installed position;
- monitoring a reaction force exerted by the lip seal on the piston as the piston translates into the installed position over the lip seal by monitoring a compression distance of the spring that is indicative of the reaction force;
- and
- determining a condition of the lip seal based on the reaction force by comparing the compression distance of the spring with a predetermined compression distance.
Dependencies are inferred from the claim text.