Water discharge device

Patent metadata

Field	Value
Publication number	US-9494114-B2
Application number	US-201113698995-A
Country	US
Kind code	B2
Filing date	May 18, 2011
Priority date	May 20, 2010
Publication date	Nov 15, 2016
Grant date	Nov 15, 2016

Abstract

A water discharge device may include a water collection chamber including a water drainage valve. At least one water sensor may be arranged in a region of the water collection chamber for determining a water level in the water collection chamber and for controlling the water drainage valve. A device may be configured to maintain the water sensor in contact with the water by keeping a water level artificially high in the region of the water collection chamber at the water sensor.

First claim

The invention claimed is:

1. A water discharge device comprising:
a water collection chamber configured to hold a fluid, the water collection chamber having an axis and defining a bottom surrounded by a periphery, the water collection chamber including a water drainage valve configured to discharge water,
at least one water sensor for determining a water level in the water collection chamber and for controlling the water drainage valve, wherein the at least one water sensor is arranged in the water collection chamber a predefined axial extent from the bottom with respect to the axis and upstream the water drainage valve, and
a device configured to maintain the at least one water sensor in contact with the water by keeping the water level artificially high in a region of the at least one water sensor, wherein the device includes a wall contour at least partially surrounding the at least one water sensor and projecting axially from the bottom of the water collection chamber with respect to the axis, and wherein the wall contour is arranged at least partially radially spaced from the periphery by an extent configured to receive a volume of fluid.

2. The water discharge device according to claim 1 , wherein the device further includes a bottom sink from which the at least one water sensor axially projects, and wherein the bottom sink is disposed in the bottom of the water collection chamber.

3. The water discharge device according to claim 2 , wherein the bottom sink is configured axially depressed from the bottom of the water collection chamber with respect to the axis and includes a subvolume, and wherein the at least one water sensor is arranged in the subvolume so that no fuel passes into the water drainage valve.

4. The water discharge device according to claim 1 , wherein the wall contour is arranged apart from the at least one water sensor and projects axially from the bottom of the water collection chamber an extent corresponding to at least part of the predefined axial extent of the at least one water sensor.

5. The water discharge device according to claim 1 , wherein the at least one water sensor is configured to open the valve to drain the water.

6. The water discharge device according to claim 5 , wherein the valve is opened electrically and closed mechanically.

7. The water discharge device according to claim 1 , wherein the at least one water sensor is arranged radially bordering the water drainage valve and axially extended from the bottom of the water collection chamber with respect to the axis, and wherein the wall contour is disposed radially between the at least one water sensor and the periphery of the water collection chamber to protect against splashing.

8. The water discharge device according to claim 1 , wherein the bottom of the water collection chamber defines an area disposed radially between the wall contour and the periphery for receiving the volume of fluid.

9. A filtration device, comprising:
an enclosure; and
a water discharge device having an axis and including:
a water collection chamber defining a bottom disposed coaxially to the axis of the water discharge device and surrounded by the enclosure when the water discharge device is coupled to the enclosure, the water collection chamber including a water drainage valve for discharging water,
at least one water sensor for determining a water level in the water collection chamber and for controlling the water drainage valve, wherein the at least one water sensor is arranged in the water collection chamber upstream of the water drainage valve and defines an axial extent from the bottom with respect to the axis, and
a device configured to maintain the at least one water sensor in contact with the water by keeping the water level artificially high in a region of the at least one water sensor,
wherein the device includes a wall contour disposed in the water collection chamber and at least partially surrounding the at least one water sensor, wherein the wall contour projects axially from the bottom and is arranged radially spaced from the enclosure with respect to the axis when the water collection device is coupled to the enclosure.

10. The filtration device according to claim 9 , wherein the device further includes a bottom sink and the at least one water sensor is arranged in the bottom sink, and wherein the bottom sink is disposed in the bottom of the water collection chamber.

11. The filtration device according to claim 10 , wherein the bottom sink is configured axially depressed from the bottom of the water collection chamber with respect to the axis and includes a subvolume, and wherein the at least one water sensor is arranged in the subvolume so that no fuel passes into the water drainage valve.

12. The filtration device according to claim 9 , wherein the wall contour is arranged apart from the at least one water sensor and projects axially from the bottom an extent corresponding to at least partially the axial extent defined by the at least one water sensor.

13. The filtration device according to claim 9 , wherein the at least one water sensor is configured to open the valve to drain the water.

14. The filtration device according to claim 13 , wherein the valve is opened electrically and closed mechanically.

15. The filtration device according to claim 9 , wherein the wall contour is arranged spaced from a radial periphery of the bottom to define an area for receiving a volume of water between the wall contour and the periphery.

16. The filtration device according to claim 15 , wherein the wall contour is disposed radially between the at least one water sensor and the enclosure when the water collection device and the enclosure are coupled together to protect against splashing.

17. A water discharge device, comprising:
a water collection chamber having an axis and defining a bottom arranged coaxially with the axis and surrounded by a periphery, the bottom including a drain for discharging a fluid;
at least one sensor disposed in the water collection chamber upstream of the drain for determining a fluid level in the water collection chamber, wherein the at least one sensor is arranged at the drain and defines an axial extent from the bottom with respect to the axis; and
a device configured to maintain an artificially high fluid level in a region of the at least one sensor, wherein the device includes a wall contour at least partially surrounding the drain and the at least one sensor, the wall contour arranged radially apart from the periphery by a space configured to receive a volume of the fluid radially between the wall contour and the periphery, and wherein the wall contour projects axially from the bottom an extent corresponding to at least part of the axial extent defined by the at least one sensor.

18. The water discharge device according to claim 17 , wherein the device further includes a bottom sink disposed in the bottom of the water collection chamber, wherein the bottom sink is configured axially depressed from the bottom and extends into the drain, and wherein the at least one sensor extends axially from the bottom sink with respect to the axis.

19. The water discharge device according to claim 17 , wherein the drain includes a drainage valve, and wherein the at least one sensor is configured to open and close the drainage valve.

20. The water discharge device according to claim 17 , wherein the bottom of the water collection chamber has an area disposed radially between the wall contour and the periphery for receiving the vo

Assignees

• Braunheim Michael
• Flaggl Kerstin
• Fontano Markus
• Schadler Werner
• Mahle Int Gmbh

Inventors

• Braunheim Michael
• Flaggl Kerstin
• Fontano Markus
• Schadler Werner

Classifications

• B60K15/03

  Fuel tanks · CPC title

• F02M37/221

  Mechanical Engineering · mapped topic

• B60K15/01

  Arrangement of fuel conduits · CPC title

• Y10T137/7313

  Control of outflow from tank · CPC title

• B60K2015/0321

  characterised by special sensors, the mounting thereof · CPC title