Patent ID: 8486277

Claim:
A method of installing an internal bypass filtration circuit in an automatic transmission including at least a housing, a pump, a valve body, a sump pan attached to said housing in covering relation to said valve body and an OEM sump filter, said method comprising the steps of: accessing a pressure circuit within said valve body of said automatic transmission; providing a depth filtration device designed to filter automatic transmission fluid received from said accessed pressure circuit to remove contaminants and produce a filtered automatic transmission fluid output for discharge into said sump pan; installing said depth filtration device within said housing in proximity to said valve body and in fluid communication with said pressure circuit so that automatic transmission fluid received from said pressure circuit is forced under pressure through said depth filtration device independently of any automatic transmission fluid taken up directly by said pump, bypassing any other functional hydraulic circuits within said transmission, and further wherein said installing is performed so that filtered automatic transmission fluid output from said depth filtration device may be discharged directly into said sump pan for recirculation through said OEM sump filter by said pump; and; installing a regulation device that regulates the flow of automatic transmission fluid to said depth filtration device.