Water spray feature of an appliance for separating particulate material from a filter member

Patent metadata

Field	Value
Publication number	US-11452964-B2
Application number	US-202016808788-A
Country	US
Kind code	B2
Filing date	Mar 4, 2020
Priority date	Mar 4, 2020
Publication date	Sep 27, 2022
Grant date	Sep 27, 2022

Abstract

A laundry appliance includes a tub having a rear wall. A drum is rotationally operable within the tub. An air flow path extends through an air flow port defined within the rear wall. A lint filter is positioned within the air flow port. A fluid spray system extends through the rear wall and directs a flow of fluid over the air flow port and the lint filter in a direction generally parallel with an inside surface of the rear wall.

First claim

What is claimed is:

1. A laundry appliance comprising:
a tub having a rear wall;
a drum that is rotationally operable within the tub;
an air flow path that extends through an air flow port defined within the rear wall, wherein a lint filter is positioned within the air flow port;
a fluid spray system that extends through the rear wall and directs a flow of fluid over the air flow port and the lint filter in a direction generally parallel with an inside surface of the rear wall, wherein the fluid spray system includes a directing nozzle that directs the flow of fluid in a fan-shaped configuration over the air flow port; and
a reinforcing panel attached to a back surface of the rear wall, wherein the air flow path and the fluid spray system extend through the rear wall and the reinforcing panel, wherein the directing nozzle extends through a utility opening of the reinforcing panel and a fluid opening of the rear wall, and wherein the utility opening and the fluid opening are concentric with respect to the directing nozzle.

2. The laundry appliance of claim 1 , wherein the directing nozzle is attached through the rear wall and is positioned adjacent to the air flow port.

3. The laundry appliance of claim 1 , wherein the air flow port and the directing nozzle extend through the rear wall and the reinforcing panel.

4. The laundry appliance of claim 1 , wherein the directing nozzle includes a spray aperture that directs the fluid along the inside surface of the rear wall and toward an outer edge of the rear wall.

5. The laundry appliance of claim 1 , wherein the directing nozzle is positioned a first radial distance from a rotational axis of the drum and the air flow port is positioned a second radial distance from the rotational axis, wherein the first radial distance is less than the second radial distance.

6. The laundry appliance of claim 5 , wherein the directing nozzle directs the flow of fluid generally away from the rotational axis.

7. The laundry appliance of claim 1 , wherein the directing nozzle couples with a fluid conduit that extends from a fluid pump.

8. The laundry appliance of claim 7 , wherein the fluid pump is a recirculation pump that directs fluid from the tub and to the directing nozzle to define the flow of the fluid into the tub.

9. A laundry appliance comprising:
a tub that defines a laundry treatment space and includes a rear wall;
an air flow path that extends from the tub and through an air flow port defined within the rear wall of the tub;
a lint filter disposed within the air flow path that entraps particles of lint; and
a fluid spray system that extends through the rear wall and directs a flow of fluid along an inside surface of the rear wall and across a surface of the lint filter to separate particles of lint from the lint filter and dispose the particles of lint within the laundry treatment space, wherein the fluid spray system includes a directing nozzle that directs a fan-shaped spray of the fluid within the laundry treatment space and across the surface of the lint filter, and wherein a reinforcing panel is attached to a back surface of the rear wall, and wherein the air flow port and the directing nozzle extend through each of a of the reinforcing panel and a fluid opening of the rear wall, wherein the utility opening and the fluid opening are concentric with and are in a close engagement with the directing nozzle.

10. The laundry appliance of claim 9 , wherein the directing nozzle directs the flow of the fluid in a direction that is generally away from a central axis extending through the laundry treatment space.

11. The laundry appliance of claim 9 , wherein the fluid is recirculated from the tub, through a fluid pump, wherein the fluid pump recirculates at least a portion of the fluid to the directing nozzle.

12. An air flow system for an appliance, the air flow system comprising:
a blower that directs process air through an air flow path;
a tub that defines a laundry treatment space, wherein the air flow path extends through the laundry treatment space and through a rear wall of the tub at an air flow port;
a lint filter positioned within the air flow port, wherein the lint filter captures lint particles on a filter surface that partially defines the laundry treatment space; and
a fluid spray system that extends through the rear wall and directs a flow of fluid along an inside surface of the rear wall and across the filter surface, wherein a directing nozzle of the fluid spray system directs the flow of fluid generally away from a central axis of the tub and toward an outer edge of the rear wall, wherein a reinforcing panel is attached to a back surface of the rear wall, and wherein the air flow port and the directing nozzle extend through each of the reinforcing panel and the rear wall, wherein the directing nozzle extends through a utility opening of the reinforcing panel and a fluid opening of the rear wall, and wherein the utility opening and the fluid opening are in a close engagement with the directing nozzle.

13. The air flow system of claim 12 , wherein the directing nozzle is coupled with the rear wall and extends through each of the rear wall and the reinforcing panel.

Assignees

• Whirlpool Co

Inventors

• Masters Roy E
• Rajendran Arun

Classifications

• D06F58/22 Primary

  Lint collecting arrangements · CPC title

• D06F58/02

  having dryer drums rotating about a horizontal axis · CPC title

• D06F39/10 Primary

  Filtering arrangements · CPC title

• B01D46/79 Primary

  by liquid process · CPC title

• D06F25/00

  Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air  (control of washing or of washing and drying D06F33/00, D06F34/00; domestic laundry dryers D06F58/00) · CPC title