Fluid inlet for a dishwasher

• US 9,247,858 B2
• Filed: 06/14/2012
• Issued: 02/02/2016
• Est. Priority Date: 01/29/2009
• Status: Active Grant

• Current Assignee: Electrolux Home Products Incorporated (AB Electrolux)
• Original Assignee: Electrolux Home Products Incorporated (AB Electrolux)
• Inventors: Goodyear, Charles A., Colon, Mario Ascander
• Primary Examiner(s): CORMIER, DAVID G
• Application Number:
  US13/517,827
• Publication Number:
  US 20120247521A1
• Time in Patent Office: 1,328 Days
• Field of Search: 134/56.D, 134/57.D, 134/58.D, 134/198
• US Class Current: 1/1
• CPC Class Codes: A47L 15/16 with rigidly-mounted spraying devices
• CPC Class Codes: A47L 15/4209 Insulation arrangements, e.g. for sound damping or heat insulation
• CPC Class Codes: A47L 15/4217 Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
• CPC Class Codes: A47L 15/4246 Details of the tub A47L15/4272 takes precedence; insulation arrangements A47L15/4209
• CPC Class Codes: A47L 15/483 by using condensers
• CPC Class Codes: A47L 15/488 Connections of the tub with the ambient air, e.g. air intake or venting arrangements

Abstract

A fluid inlet for a dishwasher configured to help manage acoustic emissions is provided. The fluid inlet includes a nozzle that defines a first plurality of orifices and a second plurality of orifices having a larger diameter than the first plurality of orifices. The first or second plurality of orifices may define a diverging cross-section. The first plurality of orifices may be interspersed in a plurality of clusters between the second plurality of orifices. The fluid inlet may further include an enclosure defining a vertically descending channel from the nozzle toward a bottom of a tub of the dishwasher and one or more dampers within the enclosure such that the water exiting the nozzle cascades down onto and over the dampers and out of the enclosures through one or more outlets of the enclosure to the bottom of the tub.

Claims

1. A fluid inlet for a dishwasher comprising:

a nozzle comprising a combination of a first plurality of orifices and a second plurality of orifices, at least one of the second plurality of orifices defining a diverging cross-section in a water inflow direction, the diverging cross-section defining a first diameter and a second diameter, wherein each of the first diameter and the second diameter are larger than a diameter of each of the first plurality of orifices, wherein the first plurality of orifices each define a diameter that is constant along a length of the orifice,

wherein the first plurality of orifices and the second plurality of orifices are configured to manage sound transmitted through the fluid inlet so as to reduce noise during a filling cycle of the dishwasher.

2. The fluid inlet according to claim 1, wherein the first plurality of orifices are interspersed in a plurality of clusters between the second plurality of orifices.

3. The fluid inlet according to claim 2, wherein each cluster includes seven of the first plurality of orifices disposed between four of the second plurality of orifices.

4. The fluid inlet according to claim 2, wherein each cluster is arranged in a hexagonal pattern.

5. The fluid inlet according to claim 1 further comprising an enclosure defining a vertically descending channel from the nozzle.

6. The fluid inlet according to claim 5 further comprising one or more dampers within the enclosure.

7. The fluid inlet according to claim 6, wherein at least one of the one or more dampers is at least partially movable depending on a direction of flow of air or water traveling through the enclosure.

8. The fluid inlet according to claim 1, wherein each of the second plurality of orifices defines a diverging cross section.

9. The fluid inlet according to claim 8, wherein each of the first plurality of orifices defines a constant cross section.

10. The fluid inlet according to claim 1, wherein each of the first and second plurality of orifices defines a diverging cross section.

11. The fluid inlet according to claim 1, wherein at least one of the second plurality of orifices defines a diverging cross-section in the water inflow direction.

12. A fluid inlet for a dishwasher comprising:

a nozzle comprising a combination of a first plurality of orifices and a second plurality of orifices, each of the second plurality of orifices having a larger diameter than each of the first plurality of orifices, wherein each of the first plurality of orifices define a constant cross-section, and wherein each of the second plurality of orifices define a diverging cross-section in a water inflow direction.

13. The fluid inlet according to claim 12, wherein the first plurality of orifices are interspersed in a plurality of clusters between the second plurality of orifices.

14. The fluid inlet according to claim 13, wherein each cluster is arranged in a hexagonal pattern.

15. The fluid inlet according to claim 12 further comprising an enclosure defining a vertically descending channel from the nozzle.

16. The fluid inlet according to claim 15 further comprising one or more dampers within the enclosure.

17. The fluid inlet according to claim 16, wherein at least one of the one or more dampers is at least partially movable depending on a direction of flow of air or water traveling through the enclosure.

18. The fluid inlet according to claim 12, wherein the first and second plurality of orifices are configured to manage sound transmitted through the fluid inlet so as to reduce noise during a filling cycle of the dishwasher.

19. A fluid inlet for a dishwasher comprising:

a nozzle comprising a combination of a first plurality of orifices and a second plurality of orifices, each of the second plurality of orifices having a larger diameter than each of the first plurality of orifices, wherein at least one of the first plurality of orifices or at least one of the second plurality of orifices defines a diverging cross-section in a water inflow direction;

an enclosure defining a vertically descending channel from the nozzle; and

one or more dampers within the enclosure, wherein at least one of the one or more dampers is at least partially movable depending on a direction of flow of air or water traveling through the enclosure.

20. The fluid inlet according to claim 19, wherein the first and second plurality of orifices are configured to manage sound transmitted through the fluid inlet so as to reduce noise during a filling cycle of the dishwasher.

21. The fluid inlet according to claim 19, wherein the first plurality of orifices are interspersed in a plurality of clusters between the second plurality of orifices.