Patent ID: 8439650

Claim:
A flow-controllable cell pump comprising: a drive shaft mounted in a pump housing; an inner rotor configured on the driveshaft; a bearing lug configured on a control slide valve, such that a bearing shell is configured in the bearing lug; a bearing element is configured in said bearing shell; a receiving shell, wherein the bearing element is received in the receiving shell of the pump housing such that the receiving shell is configured to assume an operational connection with at least one of the bearing element, pump chambers configured between the inner rotor and the control slide valve, and wherein an outer rotor is configured in the control slide valve, and suction kidneys arranged on both sides of the pump chambers in the pump housing connected with a suction connection socket; and at least one pressure kidney is configured on at least one side of the pump chambers in the pump housing such that the at least one pressure kidney is connected with a pressure connection socket, with a control slide valve arm configured on the control slide valve, wherein at least one working spring is configured between the pump housing and the control slide valve arm, such that the control slide valve arm biases the control slide valve into a position of maximum rate of delivery, with at least one control pressure chamber configured between the pump housing and the control slide valve, such that the bearing element is a bearing sleeve with a through-flow opening extending along an axis with opposing first and second ends, wherein at least one flow-through chamber is configured on at least one of the first and the second ends of the through-flow opening configured in at least one of a pump housing and in the pump housing lid, which arranged opposite the pump housing, and wherein the at least one flow-through chamber is directly connected with the at least one pressure kidney, which is configured on the same side of the control slide valve, however the at least one flow-through chamber is sealed against the suction kidney that is configured on a suction side through adjacent assemblies.