Treatment device for treating fluids, in particular liquid fluids, and treatment element of treatment device

Patent metadata

Field	Value
Publication number	US-11701602-B2
Application number	US-202117339214-A
Country	US
Kind code	B2
Filing date	Jun 4, 2021
Priority date	Dec 19, 2013
Publication date	Jul 18, 2023
Grant date	Jul 18, 2023

Abstract

A filter device for treating fluids, in particular for filtering fluids such as fuel, oil, or water, has a housing (56) with a housing pot (58), a housing cover (60), at least one inlet (88) for the fluid to be treated, and at least one outlet (82) for the treated fluid. A connecting head (12) has at least one feed (16) for the fluid to be treated and connectable to the at least one inlet (88), and/or at least one discharge (18). The connecting head (12) and the treatment element (14) can be connected to each other by means of a releasable bayonet-type connecting device (34) through the execution of a rotational/plug-in movement about a connecting axis (20) of the treatment device (10).

First claim

What is claimed is:

1. A treatment element ( 14 ) for a treatment device ( 10 ), the treatment element comprising:
a housing ( 56 ) comprising:
a housing pot ( 58 ) having an annular outer wall surrounding a connecting axis ( 20 ) and extending from an open first axial end of the housing pot to a second axial end of the housing pot and surrounding an interior chamber of the housing;
a housing cover ( 60 ) closing the interior chamber of the housing pot proximate to the open first axial end, the housing cover comprising:
at least one inlet ( 88 ) for the fluid to be treated; and
at least one outlet ( 82 ) for the treated fluid;
wherein the housing cover is spaced axially inwardly away from the open first axial end of the housing pot;

wherein the treatment element ( 14 ) is configured to be connected to a connecting head ( 12 ) of the treatment device ( 10 ) by means of a releasable bayonet-type connecting device ( 34 ) through the execution of a rotational/plug-in movement about the connecting axis ( 20 ) of the treatment device ( 10 );
wherein the releasable bayonet-type connecting device ( 34 ) on the treatment element ( 14 ) includes:
at least one housing connecting part ( 100 ) arranged at an axially outer side of the housing cover, the at least one housing connecting part ( 100 ) having:
an axially projecting wall section projecting axially outward away from the axially outer side of the housing cover;
a radially projecting wall section fixedly connected to the axially projecting wall section and projecting radially inwardly over the housing cover from the axially projecting wall section in a direction towards the connecting axis ( 20 ), the radially projecting wall section having:
an axially inner side of the radially projecting wall section forming an axially inner functional surface ( 106 ) facing the housing cover ( 60 );
an axially outer side of the radially projecting wall section forming an axially outer functional surface ( 108 ) facing away from the housing cover ( 60 );
wherein the axially outer functional surface ( 108 ) and the axially inner functional surface ( 106 ) extend helically about the connecting axis, the axially inner functional surface ( 106 ) and the axially outer functional surface ( 108 ) rising from a first circumferential end nearest the housing cover to an opposite second circumferential end spaced axially outward relative the first circumferential end;

wherein the housing cover includes an outer sealing ring arranged at an axial upwards or downwards distance of at most 5 mm beyond the radially projecting wall section of the at least one housing connecting part ( 100 ).

2. A treatment device ( 10 ) for filtering fluids, comprising:
a treatment element ( 14 ) according to claim 1 ;
a connecting head ( 12 ) having
at least one feed ( 16 ) for the fluid to be treated, said feed being connectable to the at least one inlet ( 88 ), and/or at least one discharge ( 18 ) for the treated fluid, said discharge being connectable to the at least one outlet ( 82 );

wherein the connecting head ( 12 ) and the treatment element ( 14 ) are connected to each other by means of the releasable bayonet-type connecting device ( 34 ) through the execution of a rotational/plug-in movement about a connecting axis ( 20 ) of the treatment device ( 10 ), and the bayonet-type connecting device ( 34 ) has the at least one housing connecting part ( 100 ) on the housing ( 56 ) and at least one head connecting part ( 32 ) on the connecting head ( 12 ), said at least one housing connecting part ( 100 ) engaging said at least one head connecting part ( 32 ) in order to connect the bayonet-type connecting device ( 34 ), characterized in that the at least one head connecting part ( 32 ) has at least one counter functional surface ( 44 ) that engages one of the functional surfaces ( 106 ) of the housing at least one housing connecting part ( 100 ) from behind, for interaction purposes.

3. The treatment device ( 1 ) according to claim 2 , wherein
the outer sealing ring ( 96 ) is arranged radially within the at least one housing connecting part ( 100 ).

4. The treatment device according to claim 2 , wherein
on the side of the at least one head connecting part ( 32 ), at least one guiding element ( 48 ) is arranged, which delimits at least one insert gap ( 50 ) with the at least one counter functional surface ( 44 ), an axial extension of the insert gap with respect to the connecting axis ( 20 ) being at least as large as the maximum axial distance of the axially inner functional surface ( 106 ) and the axially outer functional surface ( 108 ) of the at least one housing connecting part ( 100 ), and the at least one housing connecting part ( 100 ) can be guided in the insert gap when the bayonet-type connecting device ( 34 ) is being opened/closed, wherein one of the axially inner functional surface ( 106 ) and the axially outer functional surface ( 108 ) of the at least one housing first connecting part ( 100 ) is guided along the counter functional surface ( 44 ) and the other of the functional-surface ( 108 ) is guided along the at least one guiding element ( 48 ).

5. The treatment device according to claim 2 , wherein
the at least one counter functional surface ( 44 ) and the axially inner functional surface ( 106 ) interacting therewith each comprise at least one latch element ( 46 , 110 ), formed as a latching projection or a latch section of at least one catch lock, which latch one behind the other or with or into one another in the closed position of the at least one bayonet-type connecting device ( 34 ).

6. The treatment device according to claim 2 , wherein
the bayonet-type connecting device ( 34 ) comprises at least one biasing element ( 54 ; 190 ) for realizing a mechanical biasing with which the at least one counter functional surface ( 44 ) is pressed against the at least one axially inner functional surface ( 106 ).

7. The treatment device according to claim 2 , wherein
a material thickness of the at least one head connecting part ( 32 ) and/or the at least one housing connecting part ( 100 ) is at most 3 mm.

8. The treatment device according to claim 4 , wherein
an axial extension of the at least one insert gap ( 50 ) is at most 3 mm.

9. The treatment device according to claim 2 , wherein
the at least one counter functional surface ( 44 ) and the axially inner functional surface ( 106 ) interacting therewith each travel approximately helically about the connecting axis ( 20 ).

10. The treatment device according to claim 2 , wherein
the housing cover ( 60 ) and/or an end plate ( 68 ) of a filter element ( 64 ) and the connecting head ( 12 ) each comprise at least one correspondence element as a sealing connecting piece ( 92 ) and/or cylindrical connecting piece ( 83 ), which correspond in a pairwise manner when the treatment element ( 14 ) is mounted.

11. The treatment device according to claim 10 , wherein
at least one pair of correspondence elements ( 22 , 83 ) is arranged within at least one other pair of correspondence elements ( 24 , 92 ).

12. The treatment device according to claim 2 , wherein a material thickness of the at least one first housing connecting part ( 100 ) and/or the at least one head connecting part ( 32 ) is respectively constant in the circumferential direction, at least in the region of the axially inner or axially outer functional surface ( 106 , 108 ) and counter functional surface ( 44 ).

13. The treatment device according to claim 2 , wherein
the at least one head connecting part ( 32 ) and/or the at least one housing connecting part ( 100 ) is/are made out of sheet metal or

Assignees

• Mann & Hummel Gmbh

Inventors

• Thalmann Christian
• Hasenfratz Robert
• Wagner Fabian
• Roesgen André
• Pflueger Frank

Classifications

• B01D27/103 Primary

  Bypass or safety valves · CPC title

• B01D27/06

  with corrugated, folded or wound material · CPC title

• B01D35/005

  Filters specially adapted for use in internal-combustion engine lubrication or fuel systems · CPC title

• B01D35/147

  Bypass or safety valves · CPC title

• B01D35/306

  Filter mounting adapter · CPC title