System for limiting pressure in a fine filter chamber for a dishwasher
US8066821B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2005 |
| Grant date | Nov 29, 2011 |
| Priority date | — |
| Expiry date | Aug 8, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/116
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A dishwasher includes wash chamber, a wash system for supplying washing fluid to wash arms to clean articles arranged in the wash chamber, and a washing fluid manifold having an inlet portion, an outlet portion and a passage interconnecting the inlet and outlet portions. A filter chamber is fluidly connected to the washing fluid manifold for removing food soil from the washing fluid. A venturi is provided in the passage for establishing a low pressure region. A sampling port for feeding the filter chamber is located in the low pressure region. In addition, a bleed port is provide near an inlet of the filter chamber. In this manner, washing fluid enters the filter chamber at low pressure to increase the efficiency of a filtering process, while washing fluid enters the wash arms at a high velocity to efficiently perform a washing operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.