Variable displacement lubricant pump

A variable displacement lubricant pump for providing a pressurized lubricant, the variable displacement lubricant pump comprising:

• a static pump housing;
• a control ring which is arranged within the static pump housing, the control ring being configured to be shiftable and to radially confine a pumping chamber which is substantially cylindrical, the control ring comprising a drainage channel;
• an inlet chamber which is partially confined by the control ring;
• an outlet chamber which is partially confined by the control ring, the outlet chamber and the inlet chamber being arranged at opposite lateral sides of the control ring;
• and
• a lateral slide bearing which is arranged at the lateral side of the control ring where the outlet chamber is arranged, the lateral slide bearing comprising,
• a first lateral slide bearing surface which is defined by the static pump housing,
• a second lateral slide bearing surface which is arranged opposite to the first lateral slide bearing surface and which is defined by the control ring, and
• a lateral slide bearing gap which is defined between the first lateral slide bearing surface and the second lateral slide bearing surface,
• wherein,
• the drainage channel of the control ring fluidically connects the lateral slide bearing gap with the inlet chamber.