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US 9,970,533 B2Granted
Solenoid rebuilding method for automatic transmissions
AssigneeAdvanced Powertrain Engineering, LLC
InventorPaul Fathauer
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Abstract
A method of rebuilding a pressure control solenoid includes uncrimping a housing of the solenoid, and disassembling the solenoid. An original spool valve of the solenoid is removed from a hydraulic bore of the solenoid. The hydraulic bore is reamed such that an inner diameter of the bore is enlarged. A replacement spool valve is inserted into the hydraulic bore. An outer diameter of the replacement spool valve is larger than an outer diameter of the original spool valve.
Claims12
A method of rebuilding a used solenoid from an automatic transmission, comprising:
- uncrimping a housing of the used solenoid;
- disassembling the used solenoid;
- removing an original spool valve of the used solenoid from a hydraulic bore of the used solenoid;
- reaming the hydraulic bore such that an inner diameter of the bore is enlarged;
- and
- inserting a replacement spool valve into the hydraulic bore, an outer diameter of the replacement spool valve being larger than an outer diameter of the original spool valve;
- placing a shim within the housing in an interference fit with a coil of the solenoid;
- and
- replacing an original backing plate, threaded brushing, and set screw of the solenoid with a new backing plate, threaded bushing, and set screw.
6 more elements
Dependencies are inferred from the claim text.