DE212017000198U1 - Separating element and device for separating liquid from crude gas or raw gas mixture of an engine / compressor - Google Patents

Abstract

Separating element (100) for the separation of at least one liquid, for example oil, fuel, hydraulic fluid or coolant, from at least one raw gas or from at least one raw gas mixture of an engine, in particular for the separation of liquid from air, such as oil mist, having
a housing (10) having at least one raw gas inlet (22) for supplying the liquid-laden raw gas or crude gas mixture and at least one clean gas outlet (21, 52) for discharging the purified clean gas or clean gas mixture,
at least one filter element (12) accommodated in the housing (10) for separating liquid from gas or gas mixture, which filter element is arranged in the flow path between the raw gas inlet (22) and the clean gas outlet (52),
- At least one raw-side collecting volume for receiving separated liquid and at least one clean-side collecting volume for receiving deposited
Liquid, wherein the crude-side collecting volume and the clean-side collecting volume is arranged in each case in a lower part of the housing (10) following the gravitational force, and
- At least one drain channel arranged on the clean side (28) for discharging the collecting liquid in the clean side collecting volume from the separating element (100), characterized by at least one bypass connection (90) which connects the raw-side collecting volume and the pure-side collecting volume and during operation of the separating element (100) is arranged below the liquid level of the respective collecting volume.

Description

Technical area

The invention relates to a separating element according to the preamble of claim 1 and a device according to the preamble of claim 14.

State of the art

A generic separation element and a generic device is for example from the document DE 85 01 736.1 U1 known. This known separation element is used for separating oil droplets from air. The filter element is formed as an annular coalescer which agglomerates the fine oil droplets into larger oil droplets settling down by gravity in the separation element and downstream therefrom. Liquid droplets deposited on the raw side of the filter element, for example droplets coalesced on the outside of the filter element or droplets separated by a pre-separator, move downwards following gravity and form a bulk collecting volume arranged in the geodetically lower region of the housing, namely in the flow path between the housing cover and the filter element arranged fluid bed. However, due to the air flow in the separation element as well as through the raw air entering the separation element, the liquid of the bulk collection volume can be redispersed and transported again to the filter medium.

The publication EP 2 471 588 A1 discloses an air compression system which includes a compressor and a pressure accumulator. So that the air contaminated with oil during the compression can be used technically, a pressure vessel with an integrated air degassing element is connected upstream of the inflow of air into the pressure accumulator. Oil, which is separated from the air, for example, by a pre-separator of Luftentölelements then drips by gravity into an oil sump at the geodesic bottom of the pressure vessel. In order to prevent the contaminated air entering the pressure vessel via the air inlet from swirling up the oil in the oil collecting basin on its way to the air de-oiling element, thereby re-entraining or redispersing already separated oil from the gas stream, the document proposes EP 2 471 588 A1 to arrange a spiral separator between the gas inlet and the filter element, this spiral separator dividing the housing of the separating element into an upper and a lower chamber. However, this spiral separator takes up additional space in the pressure vessel.

From the publication DE 10 2014 004 726 A1 For example, an oil separation apparatus for a screw compressor is known which comprises a pre-separator, a fine filter device and an oil filter device. This Ölabscheidevorrichtung is disposed lying in operation. The separated oil follows gravity and is collected in an oil collecting space located below the filter element. Redispersion of the separated oil is prevented by structurally separating the raw gas inlet and the clean gas outlet from the oil collecting space, namely above the liquid level of the oil collecting space.

To provide an oil mist separator having a long maintenance-free service life, the document fails EP 2 201 224 B1 before, in the filter medium additionally form continuous free gas channels and seen in the flow direction of the crankcase ventilation gas behind the gas ducts at a distance to the filter medium to arrange at least one further filter medium or a Prallabscheidefläche. Due to the air flow in this separation element as well as the raw air entering the separation element, however, oil collected in a bulk collection volume can be redispersed and transported to the filter medium.

The invention is based on the object, a separation element of the type mentioned and a device of the type mentioned in such a way that a re-dispersion of deposited liquid is prevented.

Disclosure of the invention

This object is achieved by a separation element having the features specified in claim 1 and by a device having the features specified in claim 14. Advantageous embodiments and expedient developments of the present invention are characterized in the respective subclaims.

In principle, the invention is based on the fact that the bypass connection connects the raw-side collecting volume directly or indirectly with the drainage channel arranged on the clean side and thus makes it possible for liquid of the raw-side collecting volume to flow out of the separating element. Since the bypass connection is arranged below the liquid level of the respective collection volume during operation of the separation element, it is reliably prevented that raw gas or crude gas mixture passes through the bypass connection to the drainage channel arranged on the clean side.

The laden with liquid raw gas or raw gas mixture flows through an inlet, which is arranged in the lower part of the housing, in the housing to then flow through the above the Rohgaseinlasses arranged filter element, which preferably consists of a pre-separator, a main separator and a Nachabscheider and finally, in the cleaned state, leave the housing via the clean gas outlet.

The bypass connection of the separation element of the present invention makes it possible to guide deposited liquid in the flow direction of the raw gas or raw gas mixture flowing from the raw gas inlet to the filter element to the drainage channel. Thus, for example, the amount of liquid, in particular the amount of oil deposited in the separation element by means of pre-deposition measures, can be led out of the housing of the separation element in the flow direction of a connecting element of the engine, for example a compressor.

The present invention has the advantage that the bypass connection also in separation elements from the prior art, for example in the case of the document DE 85 01 736.1 U1 known separation element, can be provided by means of less constructive changes.

The bypass connection is always open during operation of the separation element. It can be formed by a non-closable, in particular valve-free, connecting channel for connecting the raw-side collecting volume with the clean-side collecting volume. The bypass connection thus has no pressure relief valve that opens only when a defined pressure is exceeded.

The housing is advantageously cup-shaped and has a closing cover for its open axial end surface formed, in particular screwed, housing cover. At least one of the raw gas inlet associated radially outer opening, at least one of the clean gas outlet associated radially inner opening and at least one drainage channel associated with the radially inner opening is arranged on the housing cover. In this embodiment, therefore, raw gas inlet, clean gas outlet and drainage channel are all arranged on one side of the separation element, namely in the region of the housing cover.

In a particularly advantageous embodiment of the present invention, the bypass connection has at least one bottom element, wherein the bottom element is designed to separate the raw side collecting volume arranged between the raw gas inlet and the filter element from the flow path of the raw gas or raw gas mixture flowing from the raw gas inlet to the filter element.

This base element is advantageously arranged between a base end arranged on the filter element and the filter element, for example arranged on the housing cover, raw gas inlet. For discharging the liquid of the raw-side collecting volume, the bottom element forms a liquid drainage channel arranged between the foot-side end disk and the bottom element. This liquid discharge channel opens either directly into the drainage channel or first into the clean-side collecting volume and from there into the drainage channel.

The floor element may be fastened to the foot-side end disk, for example connected to the foot-side end disk by means of the technique of welding and / or soldering. For discharging the liquid from the raw-side collecting volume to the drainage channel has in this embodiment, the foot-side end plate in the region of the raw-side liquid drain channel at least one of the bypass connection associated opening. This opening can connect the filter element with the clean-side collecting volume and project into the drainage channel arranged on the clean side. The opening may be formed for example by a small recess or a small hole. The liquid drainage channel can therefore open via at least one opening in the foot-side end disk to the clean-side collecting volume and / or to the drainage channel.

As an alternative to fixing the bottom element to the end plate, the bottom element can be clamped in the housing by means of a spring element arranged in the housing. In this embodiment, by means of a arranged between the foot-side end plate and the bottom member, formed for example by forming, the spacer bottom member over its entire surface from the foot-side end plate be spaced. Thus, the raw-side liquid drainage channel can open directly into the drainage channel. For fixing the bottom element, the spring element is arranged in the housing such that the bottom element between the foot-side end plate and the housing, in particular between the foot-side end plate and the housing cover, is braced. For example, the bottom element can be pressed by the spring element onto a sealing element arranged on the housing cover and designed to seal off the raw side of the separating element from the clean side of the separating element. In this embodiment, the housing cover, the sealing element, the Floor element, the spacer, the filter element and the spring element stacked successively arranged.

The separation element can be connected or mounted upright to the engine.

For connecting the separation element to a component of the engine, the housing cover can advantageously be connected to a nipple, this nipple extending through the opening of the housing cover assigned to the clean gas outlet in the direction of the longitudinal axis of the housing. The nipple is on the one hand releasably connectable to the housing cover and on the other hand with a connection head of the engine, in particular a compressor, for example a pneumatic compressor, connectable. In the connected state of the housing cover and nipple, the drainage channel is formed between the housing cover and the nipple. The drainage channel is thus arranged radially on the inside of the housing cover. In this advantageous embodiment, raw gas inlet, clean gas outlet and drainage channel can all be arranged on one side of the separation element, namely in the region of the housing cover and thus in the region of the flange for connecting the separation element to a component of the engine.

The housing is advantageously designed such that it can be pressurized. In order to effect a conveying effect of the liquid flowing through the bypass connection into the drainage channel, the pressure prevailing in the housing during operation of the separating element is advantageously higher on the raw side having raw gas or crude gas mixture than on the clean gas or pure gas mixture having clean side.

For the separation of liquid from gas or from gas mixture, the filter element has at least one filter medium designed as an annular coalescer. The filter element is thus preferably in the form of an annular coalescer which agglomerates the fine liquid droplets into larger droplets which settle downwards by gravity in the filter element and downstream thereof. As a filter medium, the filter element may, for example, glass fiber and / or plastic, such as nonwoven. The filter medium or each filter medium is wound several times around a support tube. In order to achieve a multi-stage filter effect, the filter element can have a plurality of filter media arranged one behind the other in the flow direction.

For at least partially covering the axial cover surfaces of the filter medium or the filter media, the filter element preferably has a foot-side end plate and an end-side end plate.

The crude-side collecting volume and the clean-side collecting volume can each be structurally connected to the filter element, in particular each be arranged in the region of the foot end arranged on the filter element end plate.

In a particularly advantageous embodiment of the present invention, at least one pre-separation medium is formed in the flow direction of the raw gas or of the crude gas mixture upstream of the filter element, for the purpose of separating liquid from gas or from gas mixture. This brings about a significant advantage in the residual oil values of the clean gas discharged from the separation element, since the filter element is considerably relieved by the preliminary separation.

The preseparation medium is advantageously designed such that a pressure gradient of the bypass connection lying between the raw side and the clean side remains and the conveying effect is maintained on the liquid draining through the bypass connection into the drainage channel.

list of figures

As already discussed above, there are various possibilities for embodying and developing the teaching of the present invention in an advantageous manner. For this purpose, reference is made on the one hand to the claims subordinate to claim 1, on the other hand, further embodiments, features and advantages of the present invention, inter alia, by reference to the. By the 1 to 3 illustrated embodiments explained in more detail.

• 1: in schematischer Schnittdarstellung ein erstes Ausführungsbeispiel für eine Vorrichtung gemäß der vorliegenden Erfindung mit einem Abscheideelement gemäß der vorliegenden Erfindung;
• 2: in schematischer Schnittdarstellung das Abscheideelement der Vorrichtung aus 1 mit einem zweiten Ausführungsbeispiel einer Dichtung;
• 3: in schematischer Schnittdarstellung ein zweites Ausführungsbeispiel für ein Abscheideelement gemäß der vorliegenden Erfindung; und
• 4 in isometrischer Darstellung das Gehäuse der Vorrichtung aus 1.

It shows:

• 1 in a schematic sectional view of a first embodiment of a device according to the present invention with a separation element according to the present invention;
• 2 in a schematic sectional view of the separation element of the device 1 with a second embodiment of a seal;
• 3 in a schematic sectional view of a second embodiment of a separation element according to the present invention; and
• 4 in an isometric view of the housing of the device 1 ,

The same or similar embodiments, elements or features are in the 1 to 4 provided with identical reference numerals.

Embodiment (s) of the invention

In order to avoid unnecessary repetition, the following explanations concerning the embodiments, features and advantages of the present invention (unless otherwise stated) refer to both in the 1 . 2 and 4 illustrated first embodiment of a separation element 100 according to the present invention as well as to the in 3 illustrated second embodiment of a separation element 100 according to the present invention.

Im on the basis of 1 and 2 illustrated first embodiment of the present invention is a device 300 For example, an oil separator or a fuel filter, shown for separating liquid from air.

This device 300 can be used in particular in air compression systems comprising a compressor, such as a screw compressor, and a pressure accumulator. In this case, the device 300 be used to de-oil the air, which was contaminated by the compression in the compressor with oil. The oil can be used for sealing, cooling and lubrication of the compressor.

The device 300 has a separator for separating at least one liquid, for example oil, fuel, hydraulic fluid or coolant, at least one raw gas or from at least one raw gas mixture of an engine, in particular for separating liquid from air 100 , For example, an oil mist separator. This oil mist separator is designed to separate oil mist contained in crankcase ventilation gas from the crankcase ventilation gas of the internal combustion engine.
The separation element 100 has a cup-shaped housing 10 with arranged therein as a ring-shaped coalescer filter element 12 , For example, a so-called spin-on filter.

As a filter medium, the filter element 12 glass fiber 210 on, which is wound several times annularly. Another filter medium is inside the glass fiber winding 210 fleece 220 arranged. The filter medium 210 . 220 is in each case such a, for example, metal, support tube 14 arranged, approximately on the support tube 14 wound up so that it withstands the force of the flowing gas stream and its shape remains stable.

To close its open front side, the cup-shaped housing 10 a housing cover 20 on.

For supplying raw gas into the cup-shaped housing 10 has the housing cover 20 at least one eccentrically arranged raw gas inlet 22 on. The aerosol of liquid and air to be cleaned passes through the raw gas inlet arranged decentrally on the housing cover 22 in the separation element 100 a, there on the side of the filter element 12 high and then from outside to inside through the filter media 210 . 220 of the filter element 12 , The separated oil is arranged by a clean side, radially inner drainage channel 28 discharged and the clean air is through a central clean gas outlet 21 . 52 dissipated. The flow of air is in 1 represented by dashed arrows. For clarity, the arrows are drawn only in the left half of the picture.

The clean gas outlet 21 . 52 is from the housing cover 20 and from a nipple 50 surround. The clean gas outlet 52 surrounding area of the nipple 50 Can be made in one piece with the nipple 50 be educated (cf. 1 ). This nipple 50 extends in the direction of the longitudinal axis of the cup-shaped housing 10 through a center in the housing cover 20 arranged opening 21 (see. 2 and 4 ). The for discharging the clean gas from the housing 10 trained clean gas outlet 52 of the nipple 50 reaches into the filter medium 210 . 220 , in particular approximately to the middle of the filter medium 210 . 220 into it.

The the central opening 21 surrounding area of the housing cover 20 is substantially cylindrical, in particular circular cylindrical, for example, as a ring collar formed.

The housing cover 20 is detachable with the nipple 50 connectable. The one with the nipple 50 detachably connectable area 26 of the housing cover 20 is formed such that in the connected state of the housing cover 20 with the nipple 50 between housing cover 20 and nipples 50 at least one drainage channel 28 for draining the separated liquid from the interior 70 the cup-shaped housing 10 is arranged.

The drainage channel 28 For example, by a in a thread (not shown) of the housing cover 20 and / or in a thread (not shown) of the nipple 50 arranged drainage groove are formed.

As an alternative to a screw connection, the nipple 50 also by means of a bayonet connection with the housing cover 20 be connectable.

The drainage channel 28 allows between nipples 50 and housing cover 20 a permanent emptying in fully connected, for example bolted state of nipple 50 and housing cover 20 ,

At the cup-shaped housing 10 opposite side of the nipple 50 this is with a connection head 80 for connecting the device 100 to a component of an engine, in particular a compressor, such as an air compressor, detachably connectable.

To drain the separated liquid is the drainage channel 28 with a drainage channel 86 of the connection head 80 connectable.

Around the drainage channel 28 from the raw gas inlet 22 Seal is at the the interior 70 the cup-shaped housing 10 facing inside of the housing cover 20 a sealing element 64 arranged. Specifically, this sealing element 64 in the present embodiment between an annular bead 32 a foot-side end plate 30 of the filter element 12 and the inside of the housing cover 20 arranged. This foot end arranged end plate 30 serves for at least partially covering a foot-side top surface of the annular filter media 210 . 220 , For at least partially covering a front-side cover surface of the annular filter media 210 . 220 has the filter element 12 In addition, a front end disc arranged 40 on.

On the raw side of the filter element 12 separated liquid droplets, for example on the outside of the filter medium 210 coalescing droplets or through a pre-separation medium 230 . 232 . 234 . 236 . 238 . 240 separated drops, following the gravity down and form one in the lower part of the housing between the raw gas inlet 22 and the filter element 12 arranged raw-side collecting volume.

When passing through the filter element 12 separated liquid drops run downwards following gravity and form one in the lower part of the housing 10 arranged pure-side collecting volume. The clean-side collecting volume opens into the drainage channel 28 ,

The raw-side collecting volume and the clean-side collecting volume are each arranged in a region in which the filter element 12 in the foot-side end disc 30 glued and from the foot-side end plate 30 is surrounded.

A bypass connection 90 , which connects the raw-side collecting volume and the pure-side collecting volume and during operation of the separating element 100 is arranged below the liquid level of the respective collecting volume, allows the drainage of liquid from the bulk collecting volume to the drainage channel 28 ,

The bypass connection 90 has at least one floor element 92 . 92 ' on which the raw-side collecting volume from the flow path of the raw gas inlet 22 to the filter element 12 flowing crude gas or crude gas mixture separates. That in the 1 to 4 shown floor element 92 . 92 ' So forms a separate return area, in which the liquid of the bulk collecting volume, for example, by at least one introduced hole 96 in the lid region of the separation element 100 (see 1 . 2 and 4 ), into the drainage channel 28 can flow.

The bypass connection 90 has at least one opening 96 ( 1 and 2 ) 96 '( 3 ), which the raw-side liquid collection volume with the drainage channel 28 combines. At the in 3 the embodiment shown, the opening 96 ' by a distance between the foot-side end plate 30 and the floor element 92 ' provided.

As in the 1 . 2 and 4 shown, the floor element 92 a to the foot-side end plate 30 be punctured catcher.

The operating pressure then returns the liquid to the stage or to the connection head 80 back. The clean area is not affected. The pressure conditions in the housing 10 support the liquid return.

3 shows that in the flow direction of the raw gas or the crude gas mixture in front of the filter element 12 a pre-separation medium formed for the separation of liquid from gas or gas mixture 230 . 232 . 234 . 236 . 238 . 240 can be arranged. The pre-separation medium may be an impact separation surface, for example a foam element 230 , an expanded metal mesh 40 , For example, a plastic expanded mesh or a metal mesh, or a Vorabscheideblech formed for example by forming gas passage openings, such as a perforated plate 232 or a perforated plate with radially oriented gas passage openings, a perforated plate 234 or a perforated plate with axially aligned gas passage openings, a perforated plate 236 or a perforated plate with angled fin. Alternatively, the pre-separation medium 238 be made of fleece.

The pre-separation medium 230 . 232 . 234 . 236 . 238 . 240 is arranged so that the separated liquid directly into the bypass connection 90 running.

A particularly good pre-separation effect can be achieved with a perforated plate 234 with axially aligned gas passage openings, for example, with longitudinal holes with rebound effect by presented metal tabs and the flow deflection effects thus generated.

By means of a housing 10 arranged spring element 72 is the pre-separation medium 230 . 232 . 234 . 236 . 238 . 240 between the foot-side end plate 30 and the housing 10 , in particular a foot on the housing 10 arranged housing cover 20 , can be braced. For example, the pre-separation medium 230 . 232 . 234 . 236 . 238 . 240 by means of the spring element 72 on the sealing element 64 be pressed.

3 shows a separation element 100 with an integrated pre-separation by means of a pre-separation medium 230 . 232 . 234 . 236 . 238 . 240 , This pre-separation is through the bypass connection 90 allows, as the bypass connection 90 prevents redispersion of the deposited in Vorabscheidemedium liquid.

The soil element serves to catch the pre-separation 92 . 92 ' , For example, a spotted on the housing cover plate 92 that the bypass connection 90 , namely a separate channel, for the amount of liquid creates the pre-separation. The amount of liquid of the pre-separation can, for example, via at least one bore ( 1 . 2 and 4 ) in the drainage channel 28 be guided. Alternatively to the hole, the bottom element 92 ' spaced from the foot-side end disk and the bypass connection 90 directly into the drainage channel 28 lead ( 3 ).

The present invention thus enables a new solution with regard to the pre-deposition in a separation element 100 , For example, a Luftsölbox. This solution will help to reduce residual oil levels, especially in compressors that deliver large volumes of oil to the boxes.

In the in the 1 to 4 both embodiments shown is the gap between the first filter medium 210 and the housing 10 the separation element with the radially inner drainage channel 28 connected. This connection is in operation of the separation element 100 arranged below the liquid level of the respective collecting volume and designed such that no raw air through the bypass connection 90 in the radially inner drainage channel 28 entry.

The present invention can be made by means of fewer changes, for example, to that of the document DE 85 01 736.1 U1 be implemented known separation element. For this purpose, for example, only one or more holes in the housing cover and an additional floor element or collecting tray would have to be arranged.

LIST OF REFERENCE NUMBERS

10

Housing of the separation element 100 , In particular cup-shaped housing, for example, hood-shaped or circular cylindrical housing, in particular housing of a spin-on filter

12

Filter element with at least one filter medium 210 . 220 for separating liquid from crude gas or raw gas mixture, at least one end disk arranged on the foot side 30 , at least one end disc arranged on the front side 40 and at least one support tube 14

14

Support tube, in particular central tube, for supporting the annular filter medium 210 220

20

housing cover

21

Opening of the housing cover 20 , in particular centrally arranged opening of the housing cover 20 ( 2 and 4 )

22

Raw gas inlet, in particular first decentralized channel, of the housing cover 20 for the flow of raw gas or crude gas mixture, for example, raw air

26

with the nipple 50 detachably connectable region, in particular internal thread, for example, annular collar, of the housing cover 20

28

Drainage channel, for discharging the collecting liquid in the clean side collecting liquid from the separation element 100 , in particular between housing cover 20 and nipples 50 arranged liquid drain for discharging the separated liquid from the interior of the housing 10 For example, drainage or spiral recess in the nipple 50 connectable area 26 of the housing cover 20 , such as drainage groove or spiral recess in the internal thread of the housing cover 20 , For example, deeper cut thread of the housing cover 20 and / or drain groove or spiral recess in the housing cover 20 connectable area 56 of the nipple 50 , such as drainage groove or spiral recess in the external thread of the nipple 50 , For example, deeper cut thread of the nipple 50

30

at the axial end of the filer element 12 arranged first end plate, in particular foot-side end plate of the filter element 12th

32

Ring bead of the first end plate 30th

40

at the axial end of the filer element 12 arranged further end plate, in particular end-side end plate of the filter element

52

Clean gas outlet for diverting the clean air from the cup-shaped housing 10 , in particular central channel extending through the housing cover 20 extending nipples 50 , for the discharge of clean gas or clean gas mixture, for example of clean air

54

radial projection, in particular collar, of the nipple 50

56

with the cup-shaped housing 10 , in particular with the housing cover 20 detachably connectable region, for example external thread of the nipple 50

60

Sealing surface, in particular seal, for example, annular seal for sealing between the raw side and the clean side, arranged on the interior of the 70 the cup-shaped housing 10 remote from the outside of the housing cover 20th

64

Sealing element for sealing the raw side of the separation element 100 from the clean side of the separation element 100 , located at the interior 70 the cup-shaped housing 10 facing inside of the housing cover 20 , in particular for sealing between drainage channel 28 and raw gas inlet 22

70

Interior of the housing

72

Spring element, in particular spring, for example helical compression spring

80

Connection head, in particular receiving head or Abscheiderkopf or receiving flange, for connecting the device 100 to a component of an engine, in particular a compressor, for example a pneumatic compressor

82

Rohlufteinlass, in particular for the inflow of untreated air trained decentralized channel, the connection head 80th

86

Discharge channel of the connection head 80 for draining the separated liquid

90

Bypass connection

92

Floor element, for example collecting plate, first embodiment cf. 1 and 2

92 '

Floor element, for example collecting plate, second embodiment cf. 3

94

Raw-side liquid drainage channel of the bypass connection 90

96

Opening of the bypass connection 90 to the drainage channel 28 , in particular on the foot-side end plate 30 arranged opening of the bypass connection 90th

96 '

Opening of the bypass connection 90 to the drainage channel 28 second embodiment (cf. 3 )

98

spacer

100

Separating element for separating at least one liquid, for example oil, fuel, hydraulic fluid or coolant, from at least one raw gas or from at least one raw gas mixture of an engine, in particular for separating aerosol formed from liquid from air, in particular oil mist, for example Lüftentölbox

210

first filter medium of the particular formed as an annular coalescer filter element, for example, coalescing filter element and / or bellows and / or wound filter element, for example made of glass fiber

220

another filter medium of the particular formed as an annular coalescer filter element, for example, coalescing filter element and / or bellows and / or wound filter element, for example made of nonwoven

230

Pre-separation medium, in particular impact separation surface, first embodiment, for example, foam element, see. 3

232

Pre-separation medium, in particular impact separation surface, second embodiment, for example, perforated plate or perforated plate with radially oriented gas passage openings, cf. 3

234

Pre-separation medium, in particular impact separation surface, third embodiment, for example, perforated plate or perforated plate with axially aligned gas passage openings, cf. 3

236

Pre-separation medium, in particular impact separation surface, fourth embodiment, for example, perforated plate or perforated plate with angled fin issued, see. 3

238

Pre-separation medium fifth embodiment, in particular nonwoven, cf. 3

240

Pre-separation medium, in particular impact separation surface, sixth embodiment, for example, expanded metal mesh, such as plastic mesh or metal mesh, see. 3

300

Device for separating at least one liquid, for example oil, fuel, hydraulic fluid or coolant, from at least one raw gas or from at least one crude gas mixture of an engine and for supplying the purified clean gas to a connection element of the engine, in particular ventilation device, for example K. [urbel] G [housing] E [ventilation] system, comprising separation element 100 and nipples 50

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 8501736 U1 [0002, 0011, 0061]
• EP 2471588 A1 [0003]
• DE 102014004726 A1 [0004]
• EP 2201224 B1 [0005]

Claims (14)

Separating element (100) for separating at least one liquid, for example oil, fuel, hydraulic fluid or coolant, from at least one raw gas or from at least one crude gas mixture of an engine, in particular for the separation of liquid from air, for example oil mist, comprising - a Housing (10) having at least one raw gas inlet (22) for supplying the liquid-laden raw gas or crude gas mixture and at least one clean gas outlet (21, 52) for discharging the purified clean gas or pure gas mixture, - at least one in the housing (10) received for the deposition of liquid filter element (12) formed from gas or from gas mixture, which is arranged in the flow path between the raw gas inlet (22) and the clean gas outlet (52), - at least one raw-side collecting volume for receiving separated liquid and at least one clean-side collecting volume for receiving separated liquid wherein the raw-side collecting volume and the clean-side collecting volume are each arranged in a lower region of the housing (10) following gravity, and - at least one drainage channel (28) arranged on the clean side for discharging the liquid collecting in the clean-side collecting volume from the separating element (100 ), characterized by at least one bypass connection (90), which connects the raw-side collecting volume and the clean-side collecting volume and is arranged below the liquid level of the respective collecting volume during operation of the separating element (100). Separating element after Claim 1 , characterized in that the bulk collecting volume between the raw gas inlet (22) and the filter element (12) is arranged and that the bypass connection (90) at least one bottom element (92, 92 '), which the crude side collecting volume from the flow path of the Raw gas inlet (22) to the filter element (12) separates the raw gas or crude gas mixture separates. Separating element after Claim 2 , characterized in that the bottom element (92, 92 ') is arranged between an end disk (30) and the raw gas inlet (22) arranged on the foot side on the filter element (12) and has an end plate (30) and the bottom element (92, 92 ') arranged unilaterally liquid drainage channel (94), wherein the raw-side liquid drain channel (94) is designed for discharging the liquid of the raw-side collecting volume and in the pure-side collecting volume and / or in the drainage channel (28) opens. Separating element after Claim 2 or 3 characterized in that an end portion of the bottom member (92) is attached to the root-side end plate (30), for example, connected to the root-side end plate (30) by the technique of welding and / or soldering, and the foot-side end plate (30). In the region of the raw-side liquid drain channel (94) at least one of the bypass connection (90) associated with opening (96), said opening (96) is designed for discharging the liquid from the raw-side collecting volume to the clean-side collecting volume. Separating element after Claim 2 or 3 , characterized in that - between the foot-side end plate (30) and the bottom element (92, 92 ') at least one spacer (98) is arranged, wherein the spacer (98) is adapted to the bottom element (92, 92') over its the entire surface of the foot-side end plate (30) to be spaced, - the raw-side liquid discharge channel (94) opens directly into the drainage channel (28), and - in the housing (10) at least one spring element (72) is arranged, by means of which the bottom element (92 ') between the foot-side end plate (30) and the housing (10), in particular a foot on the housing (10) arranged housing cover (20), is clamped. Separating element after Claim 5 , characterized in that - the housing cover (20), - at least one sealing element (64) arranged on the housing cover (20) for sealing off the raw side of the separation element (100) from the clean side of the separation element (100), - the bottom element (92 ') , - the spacer (98), - the filter element (12), and - the spring element (72) are stacked successively arranged and that the separation element (100) is connected or mounted vertically to the engine or compressor. Separating element according to at least one of Claims 1 to 6 , characterized in that the filter element (12) has at least one formed as an annular coalescer filter medium (210, 220), in particular multi-annular wound glass fiber and / or multi-ring wound plastic, such as non-woven. Separating element according to at least one of Claims 1 to 7 , characterized in that the bypass connection (90) by an uninterrupted open or non-closable, in particular valve-free, connecting channel for connecting the raw-side collecting volume is formed with the clean-side collecting volume. Separating element according to at least one of Claims 1 to 8th , characterized in that the raw-side collecting volume and the clean-side collecting volume are each structurally connected to the filter element (12), in particular in the region of an end plate (30) arranged on the filter element (12), for example arranged in each case in an area, in which the filter element (12) is glued into the foot-side end plate (30) and is surrounded by the foot-side end plate (30). Separating element according to at least one of Claims 1 to 9 , characterized in that in the flow direction of the raw gas or the crude gas mixture before the filter element (12) at least one for the separation of liquid from gas or gas mixture formed pre-separation medium (230, 232, 234, 236, 238, 240) is arranged. Separating element according to at least one of Claims 1 to 10 , characterized in that the housing (10) can be acted upon with pressure and during operation of the separation element in the housing (10) prevailing pressure on the raw gas or crude gas mixture having raw side higher than the pure gas or pure gas mixture having clean side, said pressure difference of the Raw side to the clean side is designed such that a conveying effect of the through the bypass connection (90) in the drainage channel (28) running liquid is effected. Separating element according to at least one of Claims 1 to 11 characterized in that the housing (10) is cup-shaped and has a housing cover (20) designed to close its open axial end surface, the housing cover (20) having at least one opening associated with the raw gas inlet (22), at least one clean gas outlet (52 ) and at least one opening associated with the drainage channel (28). Separating element after Claim 12 , characterized in that the housing cover (20) with a through the the clean gas outlet (52) associated with opening of the housing cover (20) in the direction of the longitudinal axis of the cup-shaped housing (10) extending and with a connection head (80) of the engine, in particular a Compressor, for example, a compressed air compressor, connectable nipple (50) is releasably connectable, wherein in the connected state of the housing cover (20) and nipple (50) between the housing cover (20) and the nipple (50) of the drainage channel (28) is formed. Device (300) for separating at least one liquid, for example from oil, from fuel, from hydraulic fluid or from coolant, from at least one raw gas or from at least one raw gas mixture of an engine and for supplying the cleaned clean gas to a connection element of the engine, characterized one after Claim 12 or 13 formed separating element (100) and - in the direction of the longitudinal axis of the cup-shaped housing (10) extending and with a connection head (80) of the engine, in particular a compressor, such as an air compressor, connectable nipple (50), wherein the nipple (50) detachably connected to the housing cover (20) and in the connected state of the housing cover (20) and nipple (50) between the housing cover (20) and the nipple (50) of the drainage channel (28) is formed.

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