Feed pump for fluidic media having sleeve bearing lubrication

A feed pump for fluidic media comprising:

• a pump housing including:
• a product channel for recirculation of a fed medium that lubricates the sleeve bearings, the product channel having at least a suction side;
• a displacement body mounted in said product channel;
• sleeve bearings in fluid communication with the product channel;
• and
• connecting channels in fluid communication with the sleeve bearings and connected to the product channel on the suction side;
• a housing cover position adjacent the housing including:
• control channels leading to the exterior of the housing cover and guide channels connected to the control channels and to the connecting channels of the housing;
• valve plungers configured to be received in the guide channels of the housing cover, the valve plungers each having a constriction and each having a section positioned adjacent to the product channel of the pump housing that has a length and a diameter that correspond to the length and the diameter of the connecting channel.