High Efficiency Oil Pump Rotor With New Tooth Profile

We have developed high efficiency oil pump rotors with a new tooth profile. This profile design is designated intelligent profile rotor (IPR). Its features are:

1. 1.
   high efficiency by equalized flow rate,
2. 2.
   reduced sliding which yields less frictional (torque) loss, and
3. 3.
   lower noise by decreasing the working clearance to 1/3 or less of standard design.

We have also improved the dimensional accuracy of sintered rotors, reducing or eliminating machining.