Patent ID: 7771543
Filing Date: 2010-08-10
Classification: A47L

Abstract:
1. A dishwasher, comprising: a tub for accommodating dishes for washing; a sump housing receiving water for dishwashing, the sump housing coupled to the bottom of the tub; a wash motor mounted to the outer bottom surface of the sump housing and having a motor shaft extended into the sump housing by passing through the bottom surface of the sump housing from the wash motor; a wash pump located within the sump housing, the wash pump including: a sealing case upwardly extended from an inner bottom surface of the sump housing; a sealing cover fitted within the sealing case and penetrated by the motor shaft; and an air cap covering the sealing case and the sealing cover and penetrated by the motor shaft, wherein the air cap has a space therein for accommodating air, in order to prevent the water for dishwashing from being drawn into the sealing case, and the air cap includes: wherein the inner wall is defined within the outer wall by being a predetermined distance away from the outer wall such that a void space is formed between the inner wall and the outer wall.