Check ball filter for transmissions

摘要

A hydraulic transmission fluid supply system for operating a transmission of a vehicle includes a hydraulic pump having an inlet and an outlet communicating with an inlet of the transmission. A filter assembly includes a filter housing having an inlet communicating with a source of hydraulic fluid and a fluid outlet communicating with the inlet of the pump. A check valve is associated with the filter housing inlet to permit only one-way flow of fluid through the system such that in the event the transmission develops an air leak, the fluid is nonetheless maintained in the system and not permitted to back flow through the system.