Dishwasher using ozone water

• US 8,932,410 B2
• Filed: 10/21/2009
• Issued: 01/13/2015
• Est. Priority Date: 10/27/2008
• Status: Active Grant

• Current Assignee: Arcelik Anonim Sirketi
• Original Assignee: Arcelik Anonim Sirketi
• Inventors: Ulger, Zehra, Tutkak, Erman, Elgun, Murat, Kaya, Mehmet, Ozgurel, Gokhan
• Primary Examiner(s): Barr, Michael
• Assistant Examiner(s): RIGGLEMAN, JASON PAUL
• Application Number:
  US13/126,441
• Publication Number:
  US 20110203620A1
• Time in Patent Office: 1,910 Days
• Field of Search: 134/56.D
• US Class Current: 134/56.D
• CPC Class Codes: A47L 15/424 by using ozone

Abstract

The present invention relates to a dishwasher (1) wherein ozone water is applied to improve the washing performance and to provide hygiene. The ozone gas that is generated by an ozone generator (7) located in the dishwasher (1) is mixed to the wash water by the Venturi device (8) and by means of an ozone water line (9) extending into the tub (2), of branch pipes (10, 110, 210) and of spray nozzles (N), ozone wash water is sprayed to the lower dish rack (3) or the upper dish rack (103).

Claims

1. A dishwasher (1) comprising a tub (2) wherein the washing process is performed, a lower dish rack (3) and an upper dish rack (103) wherein items to be washed are disposed, a lower spray arm (4) and an upper spray arm (104) which spray the wash water onto the items disposed to the dish racks (3, 103), a circulation pump (5) which provides the circulation of the wash water, a water transmission line (6) which provides the wash water to be carried from the circulation pump (5) to the spray arms (4, 104), an ozone generator (7) which generates ozone gas that is used to increase the effectiveness of the washing process and to provide hygiene, and a Venturi device (8) which is connected to the ozone generator (7) and which is used for mixing the ozone gas with the wash water, and an ozone water line (9) branching out of the water transmission line (6) ozone gas is fed to the ozone water line (9) by means of the Venturi device (8), and one or more branch pipes (10, 110, 210) which extends into the tub (2) and which are connected to the ozone water line (9) sending ozone water to the lower dish rack (3) or the upper dish rack (103) by spray nozzles on the one or more branch pipes, wherein the one or more branch pipes are separate, distinct, elements from the spray arms (10, 110, 210).

2. The dishwasher (1) as in claim 1, wherein the branch pipe (10) which is connected to the ozone water line (9), which extends to the upper side of the lower dish rack (3) or of the upper dish rack (103), and which provides ozone water to be sent only to the lower dish rack (3) or only to the upper dish rack (103) by its position being changed.

3. The dishwasher (1) as in claim 1, further comprising a flexible connection hose (11) which is connected between the ozone water line (9) and the branch pipe (10), and which allows the location of the branch pipe (10) to be changed.

4. The dishwasher (1) as in claim 3, further comprising a beam (12) which provides the branch pipe (10) to be fixed above the lower dish rack (3) or the upper dish rack (103) in the desired position by means of a mounting member (B).

5. The dishwasher (1) as in claim 1, wherein two branch pipes (110, 210) which provide ozone water to be sent only to the lower dish rack (3) or only to the upper dish rack (103) by the flow direction of ozone water that is carried by the ozone water line (9) being changed, and one of which extends to the upper side of the lower dish rack (3) and the other to the upper side of the upper dish rack (103).

6. The dishwasher (1) as in claim 5, further comprising a valve (13) which has one inlet and two outlets, the inlet of which is connected to the ozone water line (9) and the outlets of which are connected to the branch pipes (110, 210), and which provides ozone water to be directed only to one branch pipe (110 or 210) according to the choice of the user.

7. The dishwasher (1) as in claim 2, further comprising a flexible connection hose (11) which is connected between the ozone water line (9) and the branch pipe (10), and which allows the location of the branch pipe (10) to be changed.

8. The dishwasher (1) as in claim 7, further comprising a beam (12) which provides the branch pipe (10) to be fixed above the lower dish rack (3) or the upper dish rack (103) in the desired position by means of a mounting member (B).