Separation element and pressure accumulator system

Patent metadata

Field	Value
Publication number	US-10232294-B2
Application number	US-201514883822-A
Country	US
Kind code	B2
Filing date	Oct 15, 2015
Priority date	Oct 29, 2014
Publication date	Mar 19, 2019
Grant date	Mar 19, 2019

Abstract

A separation element for a pressure accumulator system for separating liquid from a media stream is provided with a hollow cylindrical filter body. The filter body has a support body and a coalescing stage filter medium radially outwardly of the support body. The filter body is flowed through radially by the media stream and separates a dirty side from a clean side of the separation element. First and second end disks are disposed on opposite sides of the filter body. A receiving recess is arranged centrally on the first end disk and is open toward the filter body interior. The receiving recess supports the separation element on a central tube of the pressure accumulator system. The second end disk has an outlet opening. Liquid that has been separated by the filter body from the media stream drains via the outlet opening of the second end disk from the separation element.

First claim

What is claimed is:

1. A separation element for a pressure accumulator system for separating a liquid from a media stream, the separation element comprising:
at least one hollow cylindrical filter body acting as a coalescer, the at least one filter body comprising at least one support body and at least one first coalescing stage filter medium disposed radially outwardly of the at least one support body, the at least one filter body configured to be flowed through radially by the media stream and configured to separate a dirty side from a clean side of the separation element;
a first end disk and a second end disk of an electrically conductive metal material, disposed on opposite end-face sides of the at least one filter body;
wherein the first end disk has:
an inside which faces an interior of the at least one filter body;
an outside arranged opposite the inside and facing outwardly away from the at least one filter body;
a grip element formed as a hollow tubular projection having a radial outer wall, projecting axially outwardly on the outside of the first end disk, the hollow projection having:
a receiving recess formed by an radial interior of the hollow tubular projection of the grip element, the receiving recess arranged centrally on the first end disk, the receiving recess at a first end being open toward the interior of the at least one filter body;
wherein the radial outer wall has at least one radially inwardly recessed region, projecting into the interior of the hollow tubular projection of the grip element, forming a grip region for grasping the separation element;
wherein the grip element is adapted as an installation aid to enable handling of the separation element during installation/deinstallation in the pressure accumulator system;
wherein the receiving recess is configured to receive an end portion of a central tube of the pressure accumulator system; and
a radially extending support surface arranged at a second end of the receiving recess and extending radially inwardly into the interior of the hollow tubular projection, the support surface configured to rest against the end portion of the central tube within the receiving recess, to support the separator element in the pressure accumulator system;

the second end disk comprising at least one outlet opening;
wherein, when the separation element is in a properly installed state in the pressure accumulator system, the liquid which is separated by the at least one filter body from the media stream drains from the separation element via the at least one outlet opening in the second end disk.

2. The separation element according to claim 1 , wherein
the grip element is configured to axially fix the separation element in the properly installed state in the pressure accumulator system.

3. The separation element according to claim 2 , wherein
the grip element comprises
an integrated anti-rotation structure configured to cooperate with a counterstructure provided in the pressure accumulator system.

4. The separation element according to claim 2 , wherein
the radially inwardly recessed region of the grip element comprises
a smooth transition area extending from a surface of the first end disk to a radially innermost point of the at least one radially inwardly recessed region.

5. The separation element according to claim 1 , wherein
the second end disk comprises
a central opening adapted for receiving a central tube of the pressure accumulator system into an interior of the at least one filter body;
an annular collection chamber formed in the second end disk as an annular recess or annular groove opening into the interior of the at least one filter body, the annular collection chamber surrounding the central opening, the second end disk at the annular collection chamber having:
at least one outlet opening adapted to drain fluid from the annular collection chamber through the second end disk, the at least one outlet opening spaced radially away from the central opening.

6. The separation element according to claim 1 , wherein
the second end disk comprises
an insertion contour that centers the second end disk on a support element of the pressure accumulator system.

7. The separation element according to claim 1 , further comprising
a spring element supporting the weight of the separation element in the installed state,
wherein the spring element is arranged on the first end disk or on the second end disk.

8. The separation element according to claim 7 , wherein
the second end disk comprises
an integrated seal that seals relative to a support element of a pressure accumulator system.

9. The separation element according to claim 7 , wherein
the first end disk comprises
a cover contour that reduces accumulation of condensate from the media stream.

10. The separation element according to claim 1 , wherein
the first end disk comprises
an outer edge with a radially inwardly angled bend forming a sealing contact with respect to the at least one filter body.

11. The separation element according to claim 1 , wherein
the second end disk comprises
an outer edge with a radially inwardly angled bend forming a sealing contact with respect to the at least one filter body.

12. A separation element for a pressure accumulator system for separating a liquid from a media stream, the separation element comprising:
at least one hollow cylindrical filter body acting as a coalescer, the at least one filter body comprising at least one support body and at least one first coalescing stage filter medium disposed radially outwardly of the at least one support body, the at least one filter body configured to be flowed through radially by the media stream and configured to separate a dirty side from a clean side of the separation element;
a first end disk and a second end disk of an electrically conductive metal material, disposed on opposite axial end-face sides of the at least one filter body;
wherein the first end disk has:
an inside which faces an interior of the at least one filter body;
an outside arranged opposite the inside and facing outwardly away from the at least one filter body;
a grip element arranged on and fixed to the outside of the first end disk, and projecting axially outwardly from the outside of the first end disk;
wherein the grip element is adapted as an installation aid to enable handling of the separation element during installation/deinstallation in the pressure accumulator system;

the second end disk comprising at least one outlet opening;
wherein, when the separation element is in a properly installed state in the pressure accumulator system, the liquid which is separated by the at least one filter body from the media stream drains from the separation element via the at least one outlet opening in the second end disk;
the separation element further comprising:
an electrically conductive spring element supporting the weight of the separation element in the installed state,
wherein the spring element is arranged on the first end disk or on the second end disk;

wherein the second end disk comprises an integrated seal that seals relative to a support element of a pressure accumulator system;
wherein the seal is held by the spring element.

13. The separation element according to claim 12 , further comprising:
a receiving recess that is arranged centrally on an inside of the first end disk, the inside facing an interior of the at least one filter body and the receiving recess being open toward the interior of the at least one filter body, the receiving recess configured to support the separation element on a central tube o

Assignees

• Mann & Hummel Gmbh

Inventors

• Dworatzek Klemens
• Schmelzle Janine
• Evcuemen Goekhan
• Krueger Volker

Classifications

• B60K15/00

  Arrangement in connection with fuel supply of combustion engines {or other fuel consuming energy converters, e.g. fuel cells}; Mounting or construction of fuel tanks · CPC title

• B01D2265/026

  with means for avoiding false mounting · CPC title

• B01D2265/021

  Anti-rotational means · CPC title

• B01D2257/706

  Organometallic compounds · CPC title

• B01D46/2414

  End caps including additional functions or special forms · CPC title