Patent ID: 8684699

Claim:
Pump for a high-pressure cleaning appliance for delivering a cleaning liquid, comprising: a pump housing in which is arranged at least one pump chamber into which at least one piston which is movable back and forth plunges, the pump chamber being connected via at least one inlet valve to a suction line and via at least one outlet valve to a pressure line, a bypass line leading from the pressure line to the suction line, and an overflow valve arranged in the bypass line, a valve body of the overflow valve being connected to a control element which in dependence upon a flow rate of the cleaning liquid in the pressure line displaces the valve body to a closed position or an open position, wherein: the pump housing comprises a rear housing component and a front housing component which are joined together in a joining area, and the suction line comprises a suction line section, a portion of which is arcuately curved and extends in the joining area between the two housing components, the bypass line opens into the suction line section, the control element is configured as a control piston which divides a control chamber of the front housing component into a low-pressure chamber and a high-pressure chamber, the control piston is displaceable in the control chamber and is connected by a piston rod to the valve body of the overflow valve, wherein the piston rod forms on a side of the valve body that faces away from the control piston a plunger for actuating a switch element, the plunger extending through the suction line section.