Patent ID: 8881750
Filing Date: 2014-11-11
Classification: A47L

Abstract:
1. A dishwasher, comprising: a wash system having a nozzle system with at least one wash nozzle for spraying wash liquid onto wares to be cleaned, a wash tank for collecting at least some of the sprayed wash liquid, and a wash pump for feeding wash liquid collected in the wash tank to the wash nozzle; a dirt-collecting system associated with the wash system and having at least one tank-covering screen in order to separate off particles of dirt from sprayed wash liquid which flows back into the wash tank under gravitational force, the dirt-collecting system having a dirt-collecting region arranged in the wash system for collecting the particles of dirt which have been separated off from the wash liquid with the aid of the tank-covering screen, wherein a dirt-discharging pipe system is connected to the dirt-collecting region for discharging the particles of dirt collected in the dirt-collecting region from the wash system, and wherein a top of the dirt-collecting region is located in an upper portion of the wash tank and is open to receive dirt from the tank-covering screen, but the dirt-collecting region extends downward through the wash tank and is closed all the way around the sides and downward from the top to the dirt-discharging pipe system such that both liquid and particles of dirt that move downward through the dirt-collecting region are prevented from reentering the wash tank for reuse in spraying; wherein the dirt-collecting system has at least one dirty-water pump arranged in the dirt-discharging pipe system and by means of which particles of dirt collected in the dirt-collecting region are fed to at least one of a dirt-collecting container formed outside the wash system or a waste-disposal system formed outside the dishwasher; wherein a controller is provided for activating a dirty-water pump in dependence on the quantity of particles of dirt collected in the dirt collecting region, on the level in the dirt-collecting region, on the level in the wash tank, on the transporting speed at which the wash ware is transported through the dishwasher or on other factors.