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1. (WO2018077410) AUTOMOTIVE VARIABLE LUBRICANT PUMP

Pub. No.:    WO/2018/077410    International Application No.:    PCT/EP2016/075955
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Fri Oct 28 01:59:59 CEST 2016
IPC: F04C 2/344
F04C 14/22
Applicants: PIERBURG PUMP TECHNOLOGY GMBH
Inventors: CUNEO, Carmine
Title: AUTOMOTIVE VARIABLE LUBRICANT PUMP
Abstract:
The present invention relates to an automotive variable lubricant pump (10) for pumping a pressurized lubricant to a lubricant target (12), comprising a pump rotor (34) with radially slidable vanes (38) rotating in a shiftable control ring (42) defining a pump chamber (54) and being radially shiftable or pivotable with respect to the rotor axis (46) between a high pumping volume position and a low pumping volume position. An inner contour (82) of the control ring (42) comprises a concave portion (80) in a lubricant suction sector (58) of the control ring (42) so that the inner contour (82) of the control ring (42) deviates from a circular shape (84).