Variable displacement lubricant pump having a radial inlet or outlet opening axially between at least two bushing rings
Number of patents in Portfolio can not be more than 2000
United States of America
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May 14, 2024
Grant Date -
Sep 29, 2022
app pub date -
May 23, 2019
filing date -
May 23, 2019
priority date (Note) -
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Abstract
A variable displacement lubricant pump for providing a pressurized lubricant for a motor vehicle. The pump includes a pump rotor which rotates about a rotor axis and a control ring which is shiftable. The pump rotor includes a pump rotor shaft, a rotor body having vane slits, and pump vanes which are arranged in and which axially slide in the vane slits. The control ring can be actuated to set an eccentricity of the control ring to define a volumetric pump performance. The control ring defines a pump chamber which is separated by the pump vanes into pumping compartments. The control ring includes a control ring main body, bushing rings which are arranged separately at a radial inside of the control ring main body, and a radial inlet opening and/or a radial outlet opening. The radial inlet opening and/or the radial outlet opening is/are arranged axially between the bushing rings.
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