Oscillator oil pump has a disk forming a ring zone between it and the housing, divided into chambers, with the inflow control set by the eccentric ring and disk for a flat volume flow propulsion with low noise emissions

摘要

The oscillator pump (1) has a housing (2) with a disk (4), forming at least one ring zone (6) in the radial direction between the disk and the housing. It is separated into chambers (8) in the peripheral direction by a divider (7) mounted to the housing and/or disk. The housing or the disk is oscillated by the drive, keyed against rotation around it axis, to alter the chamber volumes at a suction or pressure side of the pump. The inflow control is set according to the interior pressure of a chamber and/or the position of an inflow control body i.e. an eccentric ring (3) and the disk. The free flow cross section of the suction drilling opening into the chamber is set by the position of the disk between a partially open setting and a closed condition.