Location/Task/Design/Function Of Oil Pump
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
- Oil Pump, Location
The oil pump (crescent type pump) (6) is installed in the torque converter housing behind the torque converter and is driven by the drive flange of the torque converter. See Fig 1.
- Oil Pump, Task
To produce the necessary oil pressure for the hydraulic sequences.
- Oil Pump, Design
An external gear (6a) which is mounted eccentrically in the pump housing is located on the internal gear (6b) which is connected to the drive flange (6b). The crescent (6c) drives the external gear (6a).
- Oil Pump, Function
When the engine running oil is delivered through the suction gallery (6e) along the top and bottom side of the crescent (6c) to the pressure chamber (6d) of the housing. The meshing of the teeth prevents oil from flowing from the pressure side to the suction side.