Water drainage device, filter module, and method

Patent metadata

Field	Value
Publication number	US-11920547-B2
Application number	US-202217685143-A
Country	US
Kind code	B2
Filing date	Mar 2, 2022
Priority date	Mar 9, 2021
Publication date	Mar 5, 2024
Grant date	Mar 5, 2024

Abstract

A water drainage device for a filter module is provided with a valve housing that has a valve bore, a valve body received at least in sections in the valve bore, an actuation rod for actuating the valve body, and a coupling device operatively connecting the actuation rod with the valve body and enabling a tilting of the actuation rod in relation to the valve body. The water drainage device can be transferred from a closed state, in which the valve body seals in relation to the valve seat of the valve bore, into an open state, in which the valve body is lifted off the valve seat, and in reverse. The filter module has a filter housing with a housing top part. The valve body, upon transfer of the water drainage device from closed state into open state, moves toward the housing top part of the filter housing.

First claim

What is claimed is:

1. A filter module comprising:
a filter housing comprising a housing top part and a housing bottom part; and
a water drainage device comprising:
a valve housing comprising a valve bore;
a valve body received at least in sections thereof in the valve bore;
an actuation rod configured to actuate the valve body; and
a coupling device operatively connecting the actuation rod with the valve body and configured to enable a tilting movement of the actuation rod in relation to the valve body;

wherein the valve body, upon transfer of the water drainage device from the closed state, in which the valve body seals in relation to a valve seat of the valve bore,
into the open state, in which the valve body is lifted off the valve seat and moves toward the housing top part of the filter housing wherein the water drainage device is arranged external to the housing bottom part;
wherein a symmetry axis of the filter module and a symmetryaxis of the valve bore are slanted at a slant angle relative to each other, wherein the slant angle is an acute angle.

2. The filter module according to claim 1 , wherein the valve body, when the water drainage device is transferred from the closed state into the open state, moves linearly along a symmetry axis of the valve bore and moves away from the valve seat in an upward direction opposite or at a slant to a direction of gravity.

3. The filter module according to claim 2 , wherein the valve bore widens viewed opposite to the direction of gravity.

4. The filter module according to claim 1 , wherein the coupling device comprises a first axle and a second axle, wherein the actuation rod is configured to tilt about the first axle in relation to the valve body and is configured to tilt about the second axle in relation to the valve body, and wherein the first axle and the second axle are oriented perpendicularly to each other.

5. The filter module according to claim 4 , further comprising a connection piece connected to the actuation rod, wherein the first axle is mounted at the valve body, and wherein the second axle is mounted at the connection piece.

6. The filter module according to claim 4 , wherein the coupling device comprises an intermediate member connected to the first axle and to the second axle.

7. The filter module according to claim 1 , wherein the valve bore comprises a thread section and wherein the valve body comprises a counter thread section that corresponds to the thread section of the valve bore, wherein the thread section of the valve bore and the counter thread section of the valve body interact with each other to convert a rotational movement of the valve body in relation to the valve housing into a linear movement of the valve body in the valve bore.

8. The filter module according to claim 1 , wherein the actuation rod comprises a handwheel arranged at an end of the actuation rod remote from the coupling device.

9. The filter module according to claim 1 , wherein the valve body comprises a first seal element configured to seal axially in relation to the valve seat in the closed state and further configured to be lifted off the valve seat in the open state.

10. The filter module according to claim 9 , wherein the valve body comprises a second seal element configured to seal radially in relation to a connection section of the valve bore in the closed state, wherein the second seal element is arranged outside of the connection section of the valve bore in the open state.

11. The filter module according to claim 1 , wherein the valve bore passes completely through the valve housing so that the valve housing is open at both end faces thereof.

12. The filter module according to claim 1 , further comprising a water drainage channel opening into the valve bore and further comprising a water drainage socket leading out of the valve bore, wherein the valve body interrupts a fluid connection between the water drainage channel and the water drainage socket in the closed state, and wherein the valve body releases the fluid connection between the water drainage channel and the water drainage socket in the open state.

13. The filter module according to claim 1 , wherein the housing bottom part comprises a water collection chamber.

14. The filter module according to claim 1 , wherein the water draining device is in fluid communication with the water collection chamber through the housing bottom part.

Assignees

• Mann & Hummel Gmbh

Inventors

• Weindorf Martin
• Salom Rafael

Classifications

• F02M37/24 Primary

  characterised by water separating means · CPC title

• F02M37/44

  Filters structurally associated with pumps · CPC title

• F02M37/46

  Filters structurally associated with pressure regulators · CPC title

• F02M37/28 Primary

  with means activated by the presence of water, e.g. alarms or means for automatic drainage · CPC title