WO2016207318A1

WO2016207318A1 - Separating device

Info

Publication number: WO2016207318A1
Application number: PCT/EP2016/064619
Authority: WO
Inventors: Simon Buck; Holger Coolens; Stefan Dwenger
Original assignee: Elringklinger Ag
Priority date: 2015-06-25
Filing date: 2016-06-23
Publication date: 2016-12-29
Also published as: DE102015211848A1

Abstract

The problem addressed by the invention is that of creating a separating device, in particular for separating a liquid from a raw gas flow, that is simple and economical to produce. This problem is solved in that the separating device (100) comprises the following: a housing (102), which surrounds a separation space; a separating unit (214), which is or can be rotatably arranged in the separation space of the housing, wherein the housing comprises two housing halves (264), which surround the separation space and are or can be connected to each other along a section surface, which extends parallel or obliquely to an axis of rotation of the separating unit at least in some segments.

Description

separating

The present invention relates to a separation device, in particular for separating a liquid from a crude gas stream. For example, oil can be separated from an oil-mist-containing gas stream by means of such a separation device.

Separating devices are known for example from DE 10 2012 104 598 AI, DE 199 14 166 AI, DE 699 06 019 T2, DE 103 50 562 AI and DE 10 2013 207 058 AI.

The present invention has for its object to provide a separation device, which is simple and inexpensive to produce.

This object is achieved according to the invention in that the separation device comprises the following:

a housing surrounding a separation space;

a separation unit which is rotatably arranged or arrangeable in the separation space of the housing,

wherein the housing comprises two housing halves surrounding the separation space, which are connected to one another or connectable along a sectional area running parallel or obliquely to an axis of rotation of the separation unit, at least in sections.

In particular, a cut surface is an area along which the housing is split or divisible (cut or cuttable) to form the two housing halves.

The term "oblique" in this specification and the appended claims means a non-parallel and non-perpendicular orientation. - -

Characterized in that according to the invention a cutting surface is provided, which at least partially parallel or obliquely to the axis of rotation of the

Separating unit runs, the housing and thus the entire separation device can be made easily and with little effort. In particular, additional functions, such as a bearing function for receiving the separation unit, can be easily integrated into the housing.

It may be favorable if at least part of the axis of rotation extends at least in a part of the cut surface.

It can be provided that the separation chamber is at least approximately cylindrical.

It may be favorable if the cut surface intersects exclusively a lateral surface of the cylindrical separation space.

Alternatively, it can be provided that the cut surface intersects both a lateral surface of the cylindrical separation space and one or both base surfaces of the separation space.

A sectional area preferably comprises two, three or more than three partial planes.

Furthermore, it can be provided that a sectional area of two, three or more than three partial sections is formed.

It may be provided that one, two, three or more than three partial sections are aligned parallel to the axis of rotation of the separator. - -

Alternatively or additionally, it can be provided that one, two, three or more than three partial planes perpendicular to the axis of rotation of

Separating unit are aligned.

Furthermore, it can alternatively or additionally be provided that one, two, three or more than three partial planes are aligned obliquely to the axis of rotation of the separation unit.

It may be favorable if the sectional area comprises two, three or more than three partial sectional planes running parallel to one another.

Alternatively or additionally, it can be provided that the sectional area comprises two, three or more than three partial planes extending perpendicular to each other.

Furthermore, as an alternative or in addition thereto, provision can be made for the cut surface to comprise two, three or more than three partial cut planes extending at an angle to one another.

It may be favorable if two, three or more than three partial sectional planes, in particular all partial sectional planes, are aligned perpendicularly with respect to a common auxiliary plane.

The auxiliary plane is preferably aligned parallel to the axis of rotation of the separation unit.

Preferably, the cut surface is formed exclusively of partial section planes. However, it can also be provided that the cut surface comprises one, two or more partial cut surfaces which are curved, bent or otherwise shaped. Such a partial sectional area preferably has one or more of the features which are described in connection with a partial sectional plane. - -

In one embodiment of the invention, it may be provided that the sectional area comprises one, two, three or more than three partial planes which intersect the housing in the region of the separation space.

Alternatively or additionally, it can be provided that the sectional area comprises one, two, three or more than three partial planes which intersect the housing outside of the separation space.

For example, it may be provided that the sectional area comprises a partial sectional plane which intersects a lateral surface and both base surfaces of the separating chamber, and a partial sectional plane which intersects the housing outside the separating chamber.

Furthermore, it can be provided, for example, that the sectional area comprises two partial sectional planes, wherein a partial sectional plane exclusively comprises one partial plane

Mantle surface of the separation chamber and the other partial section plane both the lateral surface and a base of the separation chamber intersects.

Furthermore, it can be provided that the sectional area comprises three partial planes which intersect the housing in a substantially Z-shaped manner. In this case, two partial sectional planes preferably each intersect one base surface of the separation space, while the further partial section plane preferably only intersects the lateral surface of the separation space.

In one embodiment of the invention can be provided that the

Housing one or more bearings for storage of the separation unit comprises.

One or more bearings are preferably each partially, in particular half, by one of the two housing halves and sections, in particular half, by the other of the two

Housing halves formed. - -

For example, it may be provided that the housing comprises one or two or three bearing points, which are formed in sections, in particular in half, through one and through the other housing half.

In particular, a split bearing seat of a bearing can thereby be formed.

A bearing point preferably comprises an annular or partially annular, in particular semi-annular, recess for receiving a bearing element.

Preferably, a completely annular recess for receiving a bearing element is formed by means of two partially annular, in particular semi-annular depressions in both housing halves.

The annular recess is preferably provided on one or both sides with an annular, radially inwardly projecting projection, so that in particular a bearing element received in the recess is secured against axial displacement.

It may be advantageous if the housing comprises one or more bearing points for mounting the separation unit, which are completely formed by a housing half.

For example, it may be provided that the separation device comprises two bearing points, wherein a bearing point is completely formed by one of the two housing halves and a further bearing completely by the other of the two housing halves.

It may be favorable if the housing halves each have a contact surface.

The housing halves are preferably by means of their respective contact surface directly against one another or adjacent to each other. - -

The contact surfaces extend in the assembled state of the housing preferably in the cut surface.

The housing halves are preferably flat against each other and / or sealing against each other or adjacent fitting.

It may be favorable if the housing halves are welded or screwed together. For example, a connection by means of screws and nuts or self-tapping screw can be provided. Furthermore, a welded connection, for example by means of hot gas welding and / or laser welding, may be provided.

It may be advantageous if between the contact surfaces, in particular in suitable recesses or receptacles in the contact surfaces, a seal and / or sealing material, in particular an elastomeric molded gasket, a gasket or silicone, introduced or introduced.

It can also be advantageous if the contact surfaces are contoured.

For example, it can be provided that the housing halves have a tongue and groove connection and / or a pin connection in the area of the contact surfaces.

In one embodiment of the invention can be provided that the

Housing comprises one or more drainage channels, which are in particular formed by recesses or recesses in or adjacent to one of the respective other housing half facing contact surface of one or both housing halves.

An adjacent arrangement is to be understood in particular as an immediate adjacency. - -

Preferably, the recess or recess in the housing half is formed by suitable shaping of the housing half in the production thereof or by subsequent machining of the housing half.

In particular, it may be provided that the one or more

Drainage channels are integrated in the one housing half or in both housing halves.

It may be advantageous if the contact surfaces of the two housing halves are at least approximately mirror-symmetrical to each other with respect to the cut surface.

Alternatively or additionally, it may be provided that the contact surfaces of the two housing halves are complementary to each other.

The separation device preferably comprises a stack of flow elements.

In particular, the stack of flow elements is part of

Separation unit.

Preferably, the stack of flow elements can be introduced together with a shaft for receiving the stack of flow elements and one or more bearing elements as a preassembled structural unit between the housing halves.

In particular, it can be provided that the stack of flow elements can be inserted, clamped and / or pressed together with a shaft for receiving the stack of flow elements and one or more bearing elements as a preassembled structural unit between the housing halves. - -

For example, a press fit of the bearings between the two

Be provided housing halves.

The term "housing half" is to be understood in this specification and the appended claims as meaning that the housing is divided into two and thus comprises the two housing halves. A size or dimension specification is not connected herewith. Rather, the housing halves can be dimensioned differently.

However, it can also be provided that the housing halves, for example, in each case half surround or form the separation chamber.

It may be favorable if the housing has an annular projection which is dressed on an end plate element of a stack of flow elements.

The annular projection projects in particular in the radial direction inwards and / or in the axial direction in the direction of the end plate element of the stack of flow elements.

The radial direction and the axial direction are based on the axis of rotation of the stack of flow elements.

It may also be favorable if the housing comprises two such annular projections, wherein preferably one projection is provided in each case for one end plate element of a stack of flow elements.

By means of a projection and an end plate element, an annular dynamic gap seal is preferably formed.

In particular, a gap between the projection and the end plate member is preferably less than about 1.5 mm, more preferably less than about 1 mm, for example, at most about 0.5 mm. - -

It may be advantageous if the separation device comprises two annular dynamic gap seals, which are formed by means of a respective projection and an end plate member of the stack of flow elements.

It can be advantageous if the separation device comprises a drive space or return space through which the liquid deposited by means of the separation device is removed from the separation device.

The separated liquid is preferably passed through a bearing element from the separation space into the drive space or return space.

It may be provided that a housing half, in particular only one housing half, of the deposition device is designed as a plastic component.

Furthermore, it can be provided that both housing halves of the housing of the separation device are designed as plastic components.

In particular, a plastic component is an injection-molded plastic component.

A plastic component is preferably formed in one piece.

It may be favorable, if, in particular exclusively, one of the two housing halves a connection piece for raw gas supply, a

Connecting piece for clean gas discharge, a drive nozzle, a nozzle receptacle for receiving a drive nozzle and / or a mounting flange for fixing the separation device to a raw gas producing device comprises.

For example, it may be provided that a housing half a

Connecting piece for raw gas supply, a nozzle receptacle for receiving - - Includes a drive nozzle and a mounting flange, while the other housing half includes only a connecting piece for clean gas discharge.

However, it can also be provided that a housing half comprises only a nozzle receptacle for receiving a drive nozzle, while the other housing half the connection piece for raw gas supply, the

Connecting piece for clean gas discharge and the mounting flange includes.

In a further embodiment of the invention can be provided that a housing half comprises a connection piece for Rohgaszuführung and a connecting piece for clean gas discharge, while the other

Case half includes the nozzle holder and the mounting flange.

Finally, it can also be provided that a housing half the

Connecting piece to the raw gas supply and the mounting flange includes, while the other housing half includes the connection piece for clean gas discharge and the nozzle holder.

It can be advantageous if the two housing halves comprise a positioning aid for the correct positioning of the two housing halves relative to one another during the assembly of the separation device.

A positioning aid can be, for example, a tongue and groove connection.

Furthermore, it can be provided that a positioning aid is formed by one or more positioning pins and receptacles designed to be complementary thereto.

It may be favorable if the two housing halves for mounting the same along a connecting direction are movable toward each other.

At least one of the two housing halves preferably comprises a plurality of mutually transverse stiffening ribs. - -

Cutting lines along which the stiffening ribs adjoin one another are preferably aligned parallel to the connecting direction.

It may be favorable if both housing halves comprise such stiffening ribs.

The separating device preferably comprises a functional component, which comprises a shaft for receiving the stack of flow elements and / or a drive element, in particular a drive turbine.

The functional component is designed for example as a plastic injection-molded component and in particular in one piece.

A shaft for receiving the stack of flow elements is preferably rotatably mounted directly on the housing of the separation device by means of one or more bearing elements, in particular ball bearings.

It may be favorable if the separating device comprises a jet device, by means of which a fluid jet can be directed to a drive element for driving the stack of flow elements.

By means of the fluid jet, the drive element is preferably set in rotation. In particular, in this way the shaft for receiving the stack of flow elements together with the entire stack of flow elements in rotation can be set.

The drive fluid is for example an engine oil from an oil circuit of an internal combustion engine.

The separation device is particularly suitable for use in an internal combustion engine or in combination with an internal combustion engine. - -

Preferably, oil can be separated from a gas stream by means of the separating device, which is discharged, for example, from a crankcase of the internal combustion engine.

Preferably, the separation device comprises one or more drainage channels integrated in one or both housing parts.

One or more drainage channels are preferably used for the removal of separated liquid from a, in particular annular, collecting channel of the separation device.

The collecting channel is preferably formed radially outwardly through the lateral surface of the separation chamber. Further, the collection channel is preferably bounded radially inwardly by a projection which forms a dynamic gap seal in particular together with an end plate element of the stack of flow elements.

The collecting channel is in particular an annular collecting channel.

In further embodiments of the invention can be provided that in addition components, for example, one or more float valves and / or one or more check valves, in the housing, in particular one or both housing halves, are integrated. For example, it can be provided that one or more float valves and / or one or more non-return valves are provided in a drainage channel or in a plurality of drainage channels in order to avoid an undesired backflow of separated liquid.

It can be advantageous if one or more bearing points are provided with one or more rubber elements, in particular in order to achieve an acoustic decoupling. - -

The cut surface preferably extends outside of the connecting piece for raw gas supply, outside the connecting piece for clean gas discharge, outside the nozzle holder for receiving a drive nozzle and / or outside of a mounting flange for fixing the separation device to a raw gas producing device.

The connecting piece for raw gas supply, the connecting piece for clean gas discharge, the nozzle holder and / or the mounting flange are preferably formed undivided and / or completely arranged in one piece on one of the two housing halves.

It may be favorable if a connecting piece for raw gas supply, a connecting piece for clean gas discharge, a nozzle receptacle for receiving a drive nozzle and / or a mounting flange for fixing the separation device to a raw gas producing device are arranged in a region of the housing, which is arranged outside all partial section planes However, would be cut at an extension of one or more partial section planes of the same or the same.

For example, it can be provided that a connecting piece for supplying raw gas is arranged coaxially to a rotation axis of the separation unit, in particular of the stack of flow elements, and that a partial section plane in which the rotation axis extends ends in front of the connection piece.

The connecting piece for the raw gas supply and the separation chamber are preferably fluidly connected to one another by means of one or more bypass lines, so that supplied raw gas can be guided past a bearing point for mounting the separation unit.

Preferably, one housing half or both housing halves comprise one or more fastening points, in particular screw-on points, for fixing the housing halves to one another and / or for determining the deposition angle. - -

Device on a raw gas-producing device, in particular an internal combustion engine.

One or more attachment points differ from a mounting flange in particular in that the mounting flange in addition to the attachment for fluid removal, in particular liquid removal, is used, while the attachment points are preferably used exclusively for attachment.

In one embodiment of the invention can be provided that the

Separating device comprises a drive device in which a fluid jet is used to drive the separation unit.

Alternatively or additionally, it can be provided that the separation device comprises a motor device for driving the separation unit.

The engine device may include, for example, an electric motor.

The motor device may be, for example, by means of a Schraubflansches, a clamping device and / or a bayonet lock on the

Be determined housing.

Furthermore, other types of fastening, for example a screw connection, can also be provided.

The engine device and the separation unit are preferably coupled or coupled to one another by means of a coupling, in particular a plug-in coupling, an Oldham coupling, etc.

A raw gas supply can be provided, for example, with respect to the axis of rotation of the separation unit in the axial direction or also perpendicular thereto. - -

A Rohgasabführung is preferably carried out in parallel, in particular offset parallel to the axis of rotation of the separation unit.

It may be favorable if at least one bearing point of the housing comprises an additional element, for example an insert element. The additional element, in particular the insert element, can be introduced, for example, in the production of one or both housing halves or arranged subsequently. For example, the additional element, in particular the insert element, can be encapsulated with plastic or pressed into the plastic.

The additional element is for example a half bearing shell.

It may be favorable if one, two or more such additional elements are provided per storage location.

An additional element may for example be formed from a metallic material and / or from a plastic material or comprise a metal material and / or a plastic material.

It can be provided that a bearing point comprises an angular bearing receptacle, in particular half bearing cup receptacle. Such a bearing receptacle may be designed in particular as a polygonal pull. As a result, preferably a simple assembly and / or correction of an additional element and / or a bearing element is feasible.

An "angular bearing receptacle" is in particular a bearing receptacle to be understood in such a way that a polygonal outer contour, for example a hexagonal or octagonal outer contour, is provided in a circumferential direction instead of a cylindrical outer contour. - -

In one embodiment of the invention can be provided that a

Case half includes an integrated drive nozzle. The drive nozzle can be made integral, in particular, in the manufacture of the housing half. For example, a reinforced plastic material may be provided for integral formation of the drive nozzle as part of the housing half.

The drive nozzle can be formed in particular by shaping the housing half.

Furthermore, it can be provided that the drive nozzle is integrated, in particular encapsulated, in the production of the housing half.

It may be favorable if at least one of the housing halves of the

Housing of the separator part of a larger,

superior and / or functional of the separator

various device, for example, part of a valve cover or cylinder head cover of an internal combustion engine is.

The at least one housing half and the valve cover or

Cylinder head cover are formed in particular by a one-piece component, for example, formed as a one-piece plastic injection-molded component.

It may be advantageous if a wall section of the housing surrounding the separation space separates the separation space from a valve space or cylinder head space in an assembled state of the separation device.

The valve space or cylinder head space is in particular one of the

Valve cover or cylinder head cover surrounded and / or covered space of the engine. - -

It may be favorable if the wall section on the one hand directly adjacent to the separation chamber and on the other hand directly to the valve chamber or cylinder head space.

For example, it can be provided that the wall section in

Use state of the separator on the one hand with the im

Separating gas located in direct contact and on the other hand, in particular on the opposite side of the separation region of the wall portion, comes into direct contact with the gas arranged in the valve chamber or cylinder head space.

Further preferred features and / or advantages of the invention are the subject of the following description and the drawings of exemplary embodiments.

In the drawings show:

Fig. 1 is a schematic sectional view of a first embodiment of a separation device, which comprises a stack of identical flow elements;

FIG. 2 shows a schematic perspective, partially cutaway view of two flow elements of the separating device from FIG. 1; FIG.

3 shows an enlarged schematic cross section through the flow elements from FIG. 2;

FIG. 4 shows a schematic cross section through the separating device corresponding to FIG. 1 for illustrating the mode of operation of the separating device; FIG. - - A schematic perspective view of a second embodiment of a separation device; a schematic plan view of the separating device of FIG. 5 looking in the direction of arrow 6 in FIG. 5; a schematic section through the separating device of Figure 5 along the line 7-7 in Fig. 6. a schematic perspective exploded view of the separator of FIG. 5; a schematic perspective view of a first housing part of a housing of the separator of FIG. 5; a schematic perspective view of a second housing part of the housing of the separator of FIG. 5; a schematic side view of the separator of FIG. 5; a schematic section through the separating device of FIG. 5 along the line 12-12 in FIG. 11; a schematic perspective view of the separation device of FIG. 5 without the housing half of Fig. 10; a schematic side view of a third embodiment of a separation device, in which two obliquely to an axis of rotation of a separation unit of the deposition device aligned partial section planes are provided; - -

15 shows a schematic side view of a fourth embodiment of a separation device, in which a partial section plane oriented obliquely to the axis of rotation of a separation unit of the separation device and a partial section plane oriented perpendicular to the rotation axis of the separation unit of the separation device are provided; and

16 shows a schematic side view of a fifth embodiment of a separating device in which two partial planes aligned parallel to the axis of rotation of a separating unit of the separating device and one partial plane oriented obliquely to the axis of rotation are provided.

Identical or functionally equivalent elements are provided with the same reference numerals in all figures.

1 to 4, designated as a whole with 100 separating device is used for example for the separation of aerosol in the machining of material in mechanical engineering and / or for the separation of oil mist from a gas stream.

The separation device 100 is used in particular for separating oil mist from blow-by gases of an internal combustion engine.

The separation device 100 comprises a housing 102 which surrounds an interior 104 of the separation device 100.

The housing 102 is formed, for example, in two parts, so that the inner space 104 is easily accessible, in particular for mounting the separation device 100.

The two parts of the housing 102 are in particular for easy mounting of the separating device 100 in a respective edge region 106 by means of a - -

(not shown) screw connection and / or welded joint, in particular by a friction welding method (for example, a vibration, rotation or ultrasonic welding method), a laser welding method or a hot gas welding method, connected together.

A arranged between the edge regions 106 seal 108 of the

Housing 102 preferably prevents unwanted leakage of gas and / or liquid from the interior 104 of the separation device 100 in the assembled state of the separation device 100.

The interior 104 of the separation device 100 is in particular in

Substantially cylindrical and serves to receive a stack 110 of flow elements 112.

The flow elements 112 are substantially disc-shaped and each have an example circular central opening 114.

By means of the central openings 114 of the flow elements 112, a central channel 116 is formed in the stack 110 of flow elements 112.

The central channel 116 is formed substantially cylindrical and thus rotationally symmetrical about an axis of symmetry 118, which is a central axis 120 of the flow elements 112.

In the assembled state of the separation device 100 shown in FIGS. 1 and 4, the stack 110 of flow elements 112 is rotatable about the central axis 120. The central axis 120 is thus an axis of rotation 122 of the flow elements 112, in particular of the stack 110 of flow elements 112.

In a direction parallel to the central axis 120, the stack 110 of flow elements 112 is bounded on both sides, each with an end plate element 124. The end plate members 124 each include one - -

Anlageabschnitt 126, with which the Endplattenelemente 124 abut against the flow elements 112, and a bearing portion 128, with which the Endplattenelemente 124 are rotatably mounted on the housing 102.

A side 125 of each end plate element 124 facing the flow elements 112 has a shape which corresponds to the shape of a side 150, 152 of the end plate element 124 which faces away from the end plate element 124.

One of the end plate elements 124 is part of an inlet section 130 of the separation device 100.

For example, an aerosol can be supplied to the interior 104, in particular the central channel 116 of the stack 110 of flow elements 112, through the inlet section 130.

The further of the end plate elements 124 comprises a drive section 132, in particular a drive shaft 134, by means of which the end plate element 124 and thus also the stack 110 of flow elements 112 can be coupled or coupled to a drive device 136.

By means of the drive device 136, in particular a rotational movement can be transmitted to the stack 110 of flow elements 112 via the end plate element 124 having the drive section 132.

In the embodiment of the separating device 100 shown in FIGS. 1 and 4, the end plate elements 124 additionally each have a connecting section 138, by means of which the end plate elements 124 can be connected through the central channel 116.

In particular, it is provided that a central connecting element 139, for example a screw or threaded rod 140, extends from the connecting section 138 of the one end plate element 124 to the connecting element 138. Connecting portion 138 of the further Endplattenelements 124 extends and the Endplattenelemente 124 pulls or pushes each other. The flow elements 112 are thus clamped between the end plate elements 124.

The housing 102 of the separating device 100 comprises a drainage opening 142, through which the fluid deposited by means of the separating device 100, in particular oil, can be removed from the interior 104, in particular can flow away.

Furthermore, the housing 102 of the separation device 100 comprises an outlet section 144, through which the gas purified by means of the separation device 100 can leave the interior 104 of the separation device 100.

As can be seen in particular from FIGS. 2 and 3, each flow element 112 comprises a substantially disc-shaped basic body 146 which is rotationally symmetrical at least approximately about the axis of rotation 122 and which is provided with a plurality of walls 148 extending parallel to the central axis 120.

Both a first side 150 and one of the first side 150 opposite second side 152 of the base body 146 is provided with such walls 148.

By means of the walls 148 channels 154 of the flow elements 112 are formed.

The walls 148 are thus partitions 156 between the channels 154.

The base body 146 facing away from free ends 158 of the partition walls 156 are formed as projections 160.

The region of the main body 146 between the partitions 156 is a channel bottom 162 of the channels 154. - -

The channel bottoms 162 are provided with depressions 164, for example grooves 166.

The depressions 164 or grooves 166 form receiving portions 168 for the projections 160.

The receiving portions 168, in particular the depressions 164 and the grooves 166, are preferably designed to taper in a depth direction. For this purpose, the receiving sections 168 preferably include drafting slopes 165 or insertion bevels 167, which are aligned obliquely to the central axis 120.

The Entformungsschrägen 165 and the insertion bevels 167 are formed in particular by side walls of the receiving portions 168.

The projections 160 are preferably tapered towards their end facing away from the main body 146 158, in particular substantially complementary to the shape of the receiving portions 168.

Due to the tapered configuration of the receiving portions 168 and the projections 160, the flow elements 112 can be positioned particularly accurately relative to one another and connected to one another in a stable and reliable manner.

Both the first side 150 and the second side 152 of the base body 146 are provided with such projections 160 and such receiving portions 168.

The projections 160 and the receiving portions 168 are arranged distributed such that in a simple stacking of identical flow elements 112 engage the projections 160 on the first side 150 of a flow element 112 in the receiving portions 168 on the second side 152 of another flow element 112. At the same time, Preferably, the protrusions 160 on the second side 152 of the further flow element 112 enter the receiving portions 168 on the first side 150 of the first flow element 112.

The partitions 156, the channels 154, the projections 160 and the receiving portions 168 have a substantially Kreisvolventenverlauf.

Thus, circle vane-shaped channels 154 are formed, which extend from an inner end 170 facing the central opening 114 to an outer end 172 facing away from the central opening 114.

By means of the channels 154, the aerosol supplied through the inlet section 130 can thus be guided outward from the central channel 116 in the radial direction 174 with respect to the central axis 120.

The separation device 100 described above functions as follows:

By means of the drive device 136, the stack 110 of flow elements 112 is set in rotation via the drive section 132 of the end plate element 124.

The stack 110 of flow elements 112 thereby acts as a centrifuge, by means of which heavy components, in particular droplets, of an aerosol can be deposited.

The aerosol formed, for example, as a blowby gas of an internal combustion engine is passed through the inlet section 130 of the separating device 100 through the end plate element 124 arranged facing the inlet section 130 and supplied to the central channel 116 of the stack 110 of flow elements 112. - -

At the inner ends 170 of the channels 154, the aerosol enters the channels 154 and is guided through the channels 154 in the radial direction 174 to the outer ends 172 of the channels 154. Due to the rotation and shaping of the channels 154, the droplets of the aerosol are deposited on the dividing walls 156. The droplets are finally accelerated in the radial direction 174 in the direction of the housing 102 and then sink to the bottom.

The thus separated liquid, in particular oil, can be removed from the interior 104 of the separation device 100 via the drainage opening 142.

The gas released from the oil leaves the inner space 104 via the outlet section 114 of the housing 102 of the separating device 100.

By means of the described separation device 100, it is thus possible in particular to clean a gas stream laden with droplets.

As an alternative to the above-described mode of operation, provision may also be made for the separating device 100 to flow through in the reverse direction, for example with an aerosol.

The aerosol then flows into the interior 104 at the section of the housing 102 of the separating device 100 which is referred to as the outlet section 144. Through the channels 154, the aerosol then flows from the outside inwards against the radial direction 174 to the central opening 114. During the passage of the channels 154 heavier components, in particular droplets, of the aerosol are deposited, so that a purified gas flow through the central channel 116 and can be removed from the inner space 104 of the housing 102 of the separating device 100 the designated as the inlet portion 130 portion.

Also in this operation of the separation device 100, the separated components of the aerosol are removed through the drainage opening 142 from the interior 104 of the housing 102. - -

A second embodiment of a separating device 100 shown in FIGS. 5 to 13 differs from that shown in FIGS. 1 to 4 essentially in that a functional component 200 is provided for connecting and receiving the stack 110 of flow elements 112.

The functional component 200 serves to directly receive the stack 110 from flow elements 112 and to drive it.

The functional component 200 comprises a shaft 202 and a drive element 204 for this purpose.

The shaft 202 and thus the entire functional component 200 are rotatably mounted on two bearing points 206 of the housing 102 of the separating device 100.

In particular, the shaft 202 is off along with the stack 110

Flow elements 112 rotatably mounted about the rotation axis 122.

The separation device 100 according to FIGS. 5 to 13 also differs from the first embodiment in that the housing 102 comprises an inner space 104, which on the one hand comprises a separation space 208 and on the other hand a drive space 210 or return space 212.

The separation chamber 208 is that part of the inner space 104 in which the stack 110 of flow elements 112 is arranged.

The stack 110 of flow elements 112 forms or is part of a

Separator unit 214 of the separation device 100.

The separation unit 214 is, in particular, substantially circular-cylinder-shaped. - -

Also, the separation chamber 208 preferably has a circular cylindrical shape.

The separation chamber 208 is thus limited in particular by a lateral surface 216 and two base surfaces 218.

Through one of the base surfaces 218, namely the upper surface 218 in FIG. 7, a supply of raw gas to be cleaned by means of the separation device 100 takes place.

As already described with reference to FIGS. 1 to 4, the supply of the raw gas to the flow elements 112 takes place via the central channel 116.

As it flows through the flow elements 112 liquid is separated from the raw gas and discharged through the wall surface of the housing 102 forming the lateral surface 216.

Also in the region of the lateral surface 216, the pure gas obtained in this way is guided, in particular to a connecting piece 270 for clean gas discharge.

The region of the lateral surface 216 of the separation chamber 208 is consequently a clean gas region, while in particular the upper base surface 218 is a raw gas region.

To avoid undesired contamination of the clean gas region with raw gas, a dynamic sealing region 220 (gap seal) is preferably provided between each base surface 218 and the lateral surface 216.

Each dynamic sealing region 220 is formed by the smallest possible gap 222 between the respective end plate element 124 of the stack 110 of flow elements 112 and the housing 102. To optimize the shape and dimension of the gap 222, the housing includes - -

102 for each dynamic sealing region 220 each have an annular projection 224, which with respect to the rotation axis 122 in the radial direction 174 and / or axial direction 226 protrudes annularly in the direction of the respective end plate member 124.

The gap 222 is preferably at most approximately 1 mm, for example at most approximately 0.5 mm, wide.

To ensure the gap dimension, the separation unit 214 must be reliably and stably supported on the housing 102.

For this purpose, the bearing points 206 are provided with bearing elements 230 designed, for example, as ball bearings 228.

The bearing elements 230 are in particular pressed into the housing 102.

The housing 102 further comprises a collecting channel 232, which in particular is annular in the region of the lateral surface 216 of the separating chamber 208 and serves to receive and combine separated liquid.

Further, the housing 102 comprises one or more drainage channels 234, via which the liquid collected in the collecting channel 232 from the

Separating chamber 208 can be discharged (see in particular Figs. 7, 9 and 10).

A drainage channel 234 may in particular include a drainage opening 142 according to the embodiment shown in FIGS. 1 to 4 shown first embodiment.

Preferably, the one or more drainage channels 234 open into the drive space 210 or return space 212 of the housing 102.

Alternatively or additionally, it can be provided that the one or more drainage channels 234 open in the region of a bearing 206, so - - That the deposited liquid in the separation chamber 208 is discharged via the arranged in the bearing 206 bearing member 230 from the separation chamber 208. In this way, in particular an automatic lubrication of the bearing element 230 can be ensured.

A drainage channel 234 is in particular formed as a recess 236 or recess 238 in the housing 102.

The collecting channel 232 forms in particular an annular collecting channel 240.

In particular, the collecting channel 240 is formed on the one hand by the lateral surface 216 and on the other hand by a projection 224 for providing a dynamic sealing region 220.

In the second embodiment of the separating device 100 shown in FIGS. 5 to 13, in particular a drive device 136 designed as a jet device 242 is provided.

For this purpose, a nozzle receptacle 244 for receiving a drive nozzle 246 is provided on the housing 102 (see in particular FIGS. 8 and 13).

By means of the drive nozzle 246, a fluid jet can be directed onto the drive element 204 designed, for example, as a turbine wheel 248.

The turbine wheel 248 is thereby rotatably driven about the rotation axis 122.

As drive fluid, for example, oil from an oil circuit of an internal combustion engine is provided.

The housing 102 preferably also comprises a mounting flange 250. - -

In addition, an outer rib structure 252 facing away from the separation chamber 208 is preferably provided for stiffening and / or reinforcing the housing 102.

The rib structure 252 is in particular formed by a plurality of stiffening ribs 254, which intersect, for example, like a cross.

Cut lines 256 of stiffening ribs 254 are preferably aligned parallel to one another and, moreover, preferably parallel to a connecting direction 258 to be described later.

The housing 102 preferably further includes one or more attachment locations 260 for attachment of the deposition apparatus 100 to a raw gas producing apparatus, such as an internal combustion engine.

The one or more attachment locations 260 may preferably serve exclusively for attachment to the device producing raw gas.

Furthermore, the mounting flange 250 can also serve for fastening the separating device 100 to the device producing raw gas.

Furthermore, the mounting flange 250 preferably further serves to return separated liquid to the raw gas producing apparatus.

By means of the mounting flange 250, the separation device 100 can be fixed for this purpose in particular to a crankcase (not shown) of the internal combustion engine.

The mounting flange 250 is therefore in particular a crankcase connection 262. - -

In the second embodiment of the separation device 100, an alternative housing division is also provided.

It is customary to date a housing division according to the in Figs. 1 to 4 illustrated first embodiment, in which the housing 102 is divided into two in the horizontal direction.

In the in Figs. 5-13 illustrated second embodiment, however, is provided that the housing 102 is composed of two housing halves 264, which are not perpendicular to the rotation axis 122 divided (cut).

Rather, a slightly more complicated cut surface 266 is provided, along which the housing 102 is divided, that is along which the two housing halves 264 adjacent to each other.

The cut surface 266 may be, for example, a single continuous plane.

However, the cut surface 266 is preferably formed by a plurality of partial cut-away planes 268 or comprises a plurality of partial cut-away planes 268.

In the illustrated in FIGS. 5 to 13 second embodiment of

Separator 100, two partial planes 268 are provided.

A partial section plane 268 in this case runs in particular along the axis of rotation 122, that is to say the axis of rotation 122 runs in the partial section plane 268.

Another partial section plane 268 is aligned perpendicular to the rotation axis 122. - -

As can be seen from FIGS. 7 and 9, the division of the housing 102 along the two partial planes 268 makes it possible in particular for a connection piece 270 to be formed undivided for raw gas supply, even though it is actually located in an imaginary continuation of the first partial sectional plane 268 running along the axis of rotation 122 ,

This embodiment of the connecting piece 270 in particular the tightness in the region of the connecting piece 270 can be ensured so as not to lose unwanted raw gas to an environment of the separator 100 or to suck outside air.

The division of the housing 102 along the partial section plane 268, in which the axis of rotation 122 extends, also allows easy mounting of the separation unit 214.

In particular, the separation unit 214 can be provided together with the bearing elements 230 and the drive element 204 as a preassembled structural unit. This assembly can then be easily inserted into suitable bearings 206 of the housing halves 264 and 264 fixed by connecting the two housing halves together.

For this purpose, the bearing points 206 are designed in particular as half bearing shells 272, wherein in each case a half bearing shell 272 in a housing half 264 with a further half bearing shell 272 in the further housing half 264 adds to an annular bearing 206 in the housing 102.

As in particular the Fig. 9 and 10 it can be seen, each bearing 206 comprises a preferably semi-annular recess 274, which is bounded on both sides by radially inwardly protruding projections 276 in the axial direction 226.

By means of such bearings 206 can thus be secured in the axial direction 226, in particular a bearing element 230. - -

The two housing halves 264 are preferably plastic components 278, in particular injection-molded plastic components 280.

Each housing half 264 preferably comprises a contact surface 282, with which the housing half 264 in the assembled state of the separating device 100 preferably bears directly against the further housing half 264.

The contact surfaces 282 of the two housing halves 264 thus preferably run in the cut surface 266.

Due to the selected pitch of the housing halves 264, additional functions of the housing 102 may preferably be integrated by appropriate shaping of the housing halves 264 without providing additional components to the housing 102.

For example, the contact surface 282 may include suitable recesses 236 or recesses 238 for forming drainage channels 234.

In addition, a positioning aid 284 for the correct positioning of the housing halves 264 relative to one another can be formed by means of the contact surfaces 282.

The positioning aid 284 can be designed, for example, as a tongue and groove connection 286.

Furthermore, the contact surface 282 of each housing half 264 or even a single housing half 264 may be provided with a receiving groove 288 for receiving a (not shown) sealing member to achieve an additional seal of the interior 104 of the housing 102 to the environment. - -

The housing division can take place at different locations and in different cut surfaces 266.

In the illustrated in FIGS. 5 to 13 second embodiment of

Separating device 100 is provided, that the housing 102 is divided so that a housing half 264 a connecting piece 270 for raw gas supply, the mounting flange 250 and the nozzle receptacle 244 includes, while the other housing half 264 includes a connecting piece 270 for clean gas discharge.

In addition, in one or both housing halves 264, a bypass line 290 may be provided for raw gas supply (see in particular Figs. 7 and 10).

By means of the bypass line 290 in particular a fluid connection between the connecting piece 270 for raw gas supply and the central channel 116 of the stack 110 of flow elements 112 is formed.

The bypass line 290 thus serves in particular for the flow around a bearing 206 in the case of axial supply of raw gas.

Incidentally, the in Figs. 5 to 13 illustrated second embodiment of a separation device 100 in terms of structure and function preferably with the first embodiment shown in FIGS. 1 to 4, so that reference is made to the above description thereof in this regard.

A third embodiment of a separating device 100 shown in FIG. 14 differs from that shown in FIGS. 5 to 13 essentially in that the housing 102 is divided along a sectional area 266, which comprises two partial planes 268 oriented obliquely to the axis of rotation 122. - -

A first partial section plane 268 preferably intersects the separation chamber 208 in both base surfaces 218 and in the lateral surface 216 of the separation chamber 208.

The further partial sectional plane 268 intersects the housing 102 outside the separation chamber 208, in particular in the area of the drive space 210 or return space 212.

Preferably, a housing division is provided such that a housing half 264 comprises a connecting piece 270 for raw gas supply, a connecting piece 270 for clean gas removal and the mounting flange 250. The further housing half 264 preferably includes the nozzle receptacle 244.

The positioning aid 284 is formed, for example, by one or more positioning pins 292 and pin receptacles (not shown) corresponding thereto.

Incidentally, the in Fig. 14 illustrated third embodiment of a separation device 100 in terms of structure and function with the in Figs. 5 to 13 illustrated second embodiment, so that reference is made to the above description thereof in this regard.

One in Fig. The fourth embodiment of a separating device 100 shown in FIG. 15 essentially differs from the third embodiment shown in FIG. 14 in that the sectional surface 266 along which the housing 102 is divided has a partial section plane 268 running obliquely to the axis of rotation 122 and a plane perpendicular to the axis of rotation 122 Partial section level 268 includes.

Both partial cutting planes 268 preferably only intersect the lateral surface 216 of the separating chamber 208. - -

In the fourth embodiment of the separation device 100 shown in FIG. 15, a housing half 264 is thus provided which supports the housing

Connecting piece 270 for raw gas supply and the connecting piece 270 for clean gas removal includes. The further housing half 264 comprises the mounting flange 250 and the nozzle receptacle 244.

Incidentally, the in Fig. 15 illustrated fourth embodiment of a separation device 100 in terms of structure and function with the in FIG. 14 illustrated third embodiment, so that reference is made to the above description thereof in this regard.

One in Fig. The fifth embodiment of a separating device 100 shown in FIG. 16 differs substantially from the third embodiment shown in FIG. 14 in that the sectional surface 266 along which the housing 102 is divided comprises three partial cutting planes 268.

In this case, two partial sections 268 are provided, which are arranged offset parallel to the axis of rotation 122.

Between these two partial sections 268, an obliquely arranged to the rotation axis 122 third partial section plane 268 is provided.

In particular, this third partial section plane 268 intersects the lateral surface 216 of the separating chamber 208. The two base surfaces 218 of the separating chamber 208 can also be cut by means of this inclined partial section plane 268 or by means of the two further partial section planes 268.

Due to the use of three partial sections 268, in particular a substantially Z-shaped housing division is provided.

A housing half 264 in this case comprises the connecting piece 270 for raw gas supply and the mounting flange 250, while the other housing half - -

264 includes the connecting piece 270 for clean gas discharge and the nozzle receptacle 244.

In the fifth embodiment of the separating device 100 shown in FIG. 16, it is provided that the two housing halves 264 are movable toward one another in a connecting direction 258 perpendicular to the axis of rotation 122 in order to be engaged with one another and connected to one another.

Such a connection direction 258 is also provided in the second embodiment shown in FIGS. 5 to 13.

In the third embodiment according to FIG. 14 and the fourth embodiment of FIG. 15, however, a parallel to the axis of rotation 122 aligned connection direction 258 is provided.

Incidentally, the fifth embodiment of a separation device 100 shown in FIG. 16 is identical in construction and function to the third embodiment shown in FIG. 14, so that reference is made to the above description thereof.

The rib structure 252 for stabilizing the housing 102 has already been discussed.

In particular, when the housing halves 264 are designed as injection-molded plastic components 280, a rib structure 252 adapted to the production process is preferably provided for optimum production of the housing halves 264.

In this case, provision is made in particular for the stiffening ribs 254 to intersect along cutting lines 256 which run parallel to the connecting direction 258. In particular, this is a simple demolding of the spray Cast plastic components 280 of a mold for the production of the housing halves 264 possible.

In further embodiments (not shown) of separating devices 100, one or more features of the embodiments described above may be combined with each other as desired.

In addition, it can be provided that, instead of a drive device 136 designed as a jet device 242, each of the described embodiments comprises a drive device 136 which is electrically drivable, for example by means of an electric motor.

In particular, when the electric motor acts on a direction of gravity with respect to the upper end of the shaft 202, a radial raw gas supply may be provided.

In addition, further alternatives for the positions of the connecting pieces 270 are conceivable, in particular in order to optimally adapt the separating device 100 to individual applications.

Claims

claims

A separation apparatus (100), in particular for separating a liquid from a raw gas stream, comprising:

a housing (102) surrounding a separation space (208); a separation unit (214) which is rotatably arranged or arrangeable in the separation space (208) of the housing (102), characterized in that the housing (102) comprises two housing halves (264) surrounding the separation space (208) along at least one of Sectionally parallel or obliquely to a rotational axis (122) of the separating unit (214) extending cutting surface (266) connected to each other or are connectable.

Second deposition apparatus (100) according to claim 1, characterized in that at least part of the rotation axis (122) extends at least in a part of the cut surface (266).

3. Separating device (100) according to one of claims 1 or 2,

characterized in that the separation chamber (208) is at least approximately cylindrical and that the cut surface (266) intersects exclusively with a lateral surface (216) of the cylindrical separation space (208).

4. Separating device (100) according to one of claims 1 or 2,

characterized in that the separation chamber (208) is at least approximately cylindrical and that the cut surface (266) intersects both a lateral surface (216) of the cylindrical separation chamber (208) and one or both base surfaces (218) of the separation chamber (208).

5. Separator (100) according to one of claims 1 to 4, characterized in that the cut surface (266) comprises two, three or more than three mutually parallel partial planes (268).

6. Separating device (100) according to one of claims 1 to 5, characterized in that the cut surface (266) comprises two, three or more than three mutually perpendicular partial cutting planes (268).

7. Separating device (100) according to one of claims 1 to 6, characterized in that the cut surface (266) comprises two, three or more than three obliquely extending part-sectional planes (268).

8. Separating device (100) according to one of claims 1 to 7, characterized in that the housing (102) comprises one or more bearing points (206) for supporting the separation unit (214), wherein one or more bearing points (206) in each case in sections, in particular half, by one of the two housing halves (264) and sections, in particular half, by the further of the two housing halves (264) are formed.

9. deposition apparatus (100) according to any one of claims 1 to 8, characterized in that the housing (102) comprises one or more bearings (206) for supporting the separation unit (214), which are completely formed by a housing half (264).

10. Separating device (100) according to one of claims 8 or 9,

characterized in that at least one bearing (206) has a square bearing receptacle, in particular with a cross-section

polygonal lateral surface, includes.

11, separating device (100) according to any one of claims 1 to 10, characterized in that the housing halves (264) each have a contact surface (282) and that the housing halves (264) with their respective contact surface (282) directly abut each other or against each other are.

12. Separating device (100) according to any one of claims 1 to 11, characterized in that the housing (102) comprises one or more drainage channels (234) which in particular by recesses (236) or recesses (238) in or adjacent to one of the respective other housing half (264) facing the contact surface (282) of one or both housing halves (264) are formed.

13. Separating device (100) according to one of claims 11 or 12,

characterized in that the contact surfaces (282) of the two housing halves (264) are at least approximately mirror-symmetrical to one another with respect to the cut surface (266).

14. Separating device (100) according to one of claims 1 to 13, characterized in that the separating device (100) comprises a stack (110) of flow elements (112) which together with a shaft (202) for receiving the stack (100). from flow elements (112) and one or more bearing elements (230) as a preassembled unit between the housing halves (264) can be introduced.

15. separating device (100) according to one of claims 1 to 14, characterized in that the housing (102) has an annular projection (224) which in the separation chamber (208) in the radial direction (174) inwardly and / or in axial Direction (226) on an end plate member (124) of a stack (110) of flow elements (112) is directed to.

16. Separator (100) according to claim 15, characterized in that by means of the projection (224) and the Endplattenelements (124) an annular dynamic gap seal (220) is formed.

17. Separating device (100) according to one of claims 1 to 16, characterized in that the separating device (100) comprises a drive space (210) or return space (212) through which the means the deposited liquid is discharged from the separation device (100), wherein the separated liquid is passed through a storage element (230) from the separation chamber (208) into the drive space (210) or return space (212).

18. separating device (100) according to one of claims 1 to 17, characterized in that only one housing half (264) as a plastic component (278) is formed or that both housing halves (264) as plastic components (278) are formed.

19. Separating device (100) according to one of claims 1 to 18, characterized in that one of the two housing halves (264)

- a connecting piece (270) for raw gas supply,

- a connecting piece (270) for clean gas discharge,

a drive nozzle (246),

- A nozzle receptacle (244) for receiving a drive nozzle (246) and / or

- Includes a mounting flange (250) for fixing the separation device (100) to a raw gas producing device.

20. Separating device (100) according to one of claims 1 to 19, characterized in that the two housing halves (264) comprise a positioning aid (284) for correct positioning of the two housing halves (264) relative to each other during assembly of the separation device (100).

21, separating device (100) according to one of claims 1 to 20, characterized in that the two housing halves (264) for mounting the same along a connecting direction (258) are movable towards each other and that at least one of the two housing halves (264) a plurality of transverse to each other Stiffening ribs (254), wherein cutting lines (256), along which the stiffening ribs (254) adjacent to each other, are aligned parallel to the connecting direction (258).

22. Separating device (100) according to one of claims 1 to 21, characterized in that at least one of the housing halves (264)

Part of a larger, superior and / or functionally different from the deposition device device, for example

Part of a valve cover or cylinder head cover of a

Internal combustion engine, is.

23, separating device (100) according to claim 22, characterized in that a wall portion of the separation chamber (208) surrounding the housing (102) in an assembled state of the separation device (100) the separation chamber (208) of a valve chamber or

Cylinder headspace separates.