Friction reducing seal ring for gear pump
OwnerDonald D. Deems, Anthony S. Jungelsinventors
Life of this patent
Estimating the term…
Abstract
A seal ring for improving the performance of a gear pump, primarily for vehicle transmissions, comprises the milling of a circular ring on at least one lateral face of an inner gear and an outer gear in a gear pump and inserting a friction reducing ring within the milled circular ring. The addition of this ring, especially on remanufactured gear pumps, will reduce the amount of transmission fluid leaking between the gears and the gear pump housing and also reduce the friction between the gears and the gear housing, thus providing more fluid to the transmission and also increasing the pressure while decreasing the amount of heat of the transmission fluid being circulated through the gear pump.
Claims3
An improved gear pump assembly for automatic transmission gear pumps, replacing a gear pump assembly in new or used transmissions to improve or restore the efficiency of the gear pump in the automatic transmission, the improved gear pump assembly comprising:
- an inner gear having a circular groove machined on at least one lateral face of said inner gear, said circular groove receiving a friction resisting ring with a minimum of clearance tolerance;
- and
- an outer gear having a circular groove machined on at least one lateral face of said outer gear, said circular groove receiving a friction resisting ring with a minimum of clearance tolerance, wherein
- said assembled inner gear and outer gear are installed within a gear pump housing, each said friction resisting ring spinning freely within each circular groove.
Dependencies are inferred from the claim text.