- Small size, light weight, simple structure, and high oil supply capacity: A cycloidal pump is formed by internal and external rotors engaged with each other. It features a small number of teeth, compact dimensions, simple enclosed cavity, fewer components, and no need for coordination by other isolation parts.
- Excellent high-speed performance: Thanks to the wide range of oil suction/discharge angle, a cycloidal pump makes full use of centrifugal force during high-speed rotation, allowing oil liquid to fill the tooth valleys and avoiding unfavorable conditions due to “voids”. As a result, the RPM of a cycloidal pump ranges between a few hundred and nearly ten thousand. By comparison, typical involute gear pumps provide a RPM level not exceeding 3000 rpm and a peripheral speed not exceeding 5～6m/s. This is because a too high RPM will result in insufficient oil in tooth valleys due to centrifugal effect and consequently “voids”, thus leading to lower efficiency of the pump.
- Smooth operation and low noise: For a cycloidal pump, the number of teeth differs by one between internal and external rotors. During relative movement, the mutual wear between the tooth surfaces of the two rotors is minimal. This is because the tooth surfaces slide slowly, and the engagement points move constantly along the tooth profile of internal and external rotors. In addition, the pump features smooth oil flow and movement as well as sufficient oil suction and discharge time. It is also much quieter than gear pumps during work owing to the large envelope angle (nearly 145°) of the oil suction and discharge cavities.
Name: engine oil pump
Ref No. : 003C115105AB/03C115105T
Skoda: FAB 11-15/FABI 09-14/RAP 13-/RAPI 12-/RO 11-15/
VW: JE 13-15/PO 05-15
Seat: CO 06-09/IB 06-15/TO 13-15