DE102015001223A1 - Modular pre-separator system of a multi-stage filter system and filter system - Google Patents

Abstract

There are a modular Vorabscheidersystem (19) of a multi-stage filter system (10), in particular a modular filter system for the filtration of gaseous fluid, in particular air, in particular an internal combustion engine, in particular a motor vehicle, a construction or agricultural machine and / or a compressor, and a multi-stage filter system described. The pre-separator system (19) has a pre-separator system housing (58) with two upstream / downstream sides (103) for fluid to be cleaned on axially opposite sides with respect to a main flow axis (18). The pre-separator system (19) has at least one pre-separator module (20), which is arranged in the pre-separator system housing (58) for the fluid to flow through between the two inflow / outflow sides (103). The Vorabscheidersystemgehäuse (58) has on both inflow / outflow sides (103) each have a connection region (90, 92) for arranging the Vorabscheidersystems (19) in / on an adapter space (46) of a housing main body (26) of the filter system (10) optionally with one of the arrival / outflow sides (103) ahead. The two connection regions (90, 92) are different in terms of design, in particular position and / or shape and / or dimension, such that the pre-separator system (19) with the two connection regions (90, 92) has different depths into the adapter space (46). introduced, in particular outside the adapter space (46) arranged can be. Optionally, the at least one preseparator module (20) may be disposed in two orientations opposite the main flow axis (18) in the pre-separator system housing (58).

Description

Technical area

The invention relates to a modular Vorabscheidersystem a multi-stage filter system, in particular a modular filter system for the filtration of gaseous fluid, in particular air, in particular an internal combustion engine, in particular a motor vehicle, a construction or agricultural machine and / or a compressor.

The invention further relates to a multi-stage filter system, in particular a modular filter system, for the filtration of gaseous fluid, in particular air, in particular an internal combustion engine, in particular a motor vehicle, a construction or agricultural machine and / or a compressor, with at least one modular Vorabscheidersystem.

State of the art

From the DE 11 2010 001 706 T5 For example, a modular cyclone pre-separator system is known that incorporates one or more reusable, modular, parallel-configured cylinder blocks. The modular cylinder blocks are intended as a component for reuse in different cyclone pre-separator systems for potentially different cyclone pre-separator applications, providing standardized component components and reducing manufacturing costs. The modular cylinder blocks are designed to be selectively combinable to provide a cyclone pre-separator system having the desired gas flow characteristics and particle separation capability required for any given pre-deposition application. The preseparator system includes a housing sized for at least one given preseparator system and adapted to support the selectively combined modular cylinder blocks for the application.

The invention has for its object to design a Vorabscheidersystem and a filter system of the type mentioned, in which the Vorabscheidersystem with as little, especially no change effort simple, space-saving and flexible as possible with different housing base bodies of the filter system and / or combined with the same housing base bodies can.

Disclosure of the invention

This object is achieved in that the Vorabscheidersystem has a Vorabscheidersystemgehäuse with two arrival / Abströmseiten for to be cleaned fluid with respect to a main flow axis axially opposite sides and has at least one Vorabscheidermodul that in the Vorabscheidersystemgehäuse between the two arrival / outflow for the fluid is arranged through flow, wherein the Vorabscheidersystemgehäuse at both inflow / outflow sides each having a connection region for arranging the Vorabscheidersystems in / on an adapter space of a housing base of the filter system with either one of the arrival / Abströmseiten ahead, the two connection areas with respect to design, in particular position and / or shape and / or dimension, are different, such that the pre-separator system with the two connection areas inserted differently deep into the adapter space, in particular also outside the adapter space angeo rdnet, and wherein the at least one pre-separator module can be selectively arranged in two orientations opposite to the main flow axis in the pre-separator system housing.

According to the Vorabscheidersystemgehäuse is designed so that it can be selectively connected to either one of the two arrival / Abströmseiten ahead with the housing base of the filter system. In addition, at least one pre-separator module may be installed within the pre-separator system housing rotated 180 ° about at least one housing-side module reference axis. At least one pre-separator module of the same design may be disposed in the pre-separator system housing in two opposite orientations.

The side of the Vorabscheidersystemgehäuses, which faces the adapter space of the housing main body is the downstream side, the opposite side of the inflow side. If the Vorabscheidersystemgehäuse rotated by 180 ° about an axis, in particular perpendicular to the main flow axis arranged on the housing base body, the previous outflow side to the inflow side and the inflow side to the downstream side. The at least one Vorabscheidermodul can be rotated in this arrangement within the Vorabscheidersystemgehäuses corresponding 180 °, in particular around its module reference axis, so that overall the flow direction of the fluid through the at least one Vorabscheidemodul also remains the same when turning the Preabscheidersystemgehäuses.

Advantageously, the Vorabscheidersystem be designed so that it can be rebuilt even after a pre-assembly. Thus, when exchanging at least one filter element of the filter system, the pre-separator system can be used depending on the size of the filter element used Filter element in two opposite orientations with respect to the main flow axis are connected to the housing base body. Accordingly, the at least one pre-separator module in the pre-separator system can be flexibly turned over with respect to the main flow axis.

Alternatively, the Vorabscheidersystem be designed so that it is pre-assembled for the appropriate application and subsequently no longer changeable. Even then, the inventive Vorabscheidersystem - as in the previously described convertible variant - the advantage that with a smaller number of manufacturing tools different configurations of the modular Vorabscheidersystems can be prepared.

The pre-separator system housing has a connection area on both inflow and outflow sides. With at least one of the connection regions, the pre-separator system housing can be arranged at least partially in the adapter space of the housing base body. Alternatively, it can be arranged with the corresponding other connection area outside the adapter space on the housing base body. One and the same Vorabscheidersystemgehäuse can be so easily arranged on two different adapter spaces and / or on the same adapter space in different ways.

Advantageously, the Vorabscheidersystemgehäuse on its outer side with respect to a central axis, in particular a horizontal in the normal operating orientation of the Vorabscheidersystems horizontal axis, in particular perpendicular to the main flow axis, be asymmetrical. In this way, a rotational orientation with respect to the main flow axis of the pre-separator system in or on the adapter space can be specified. Thus, it can be specified during assembly that, in particular, a discharge opening of the pre-separator system is arranged spatially downwards, so that fluid separated from the fluid can escape downwards out of the pre-separator system in accordance with gravity. Accordingly, the connection region of the adapter space can be asymmetrical with respect to a corresponding central axis.

Due to the modular design of the pre-separator system, identical or similar module elements can be flexibly combined with one another in order to realize different connection types with the same housing base body and / or different, in particular similar, housing base bodies.

Advantageously, a connection region can be designed on the side of the housing base body in such a way that it can allow at least two different connection types of the modular preseparator system.

Advantageously, the pre-separator system can optionally be arranged at least partially in the adapter space and / or outside the adapter space. In the case of an arrangement of the pre-separator system outside the adapter space, the area released there can be used to receive, in particular, part of a filter element of the multistage filter system. Thus, in the same, the same or at least similar housing base bodies and the same or the same Vorabscheidersystem different sized filter elements can be used.

Alternatively, the Vorabscheidersystemgehäuse may be at least partially disposed in the adapter space in both types of connection, the installation depth may be different for the two types of connection.

In an advantageous embodiment, at least one housing-side receiving arrangement of the Vorabscheidersystemgehäuses for receiving at least one Vorabscheidermoduls respect to at least one housing-side module reference axis, in particular a vertical housing-side module reference axis extending between the two arrival / outflow, in particular in a plane perpendicular to the main flow axis, be at least functionally symmetrical, such that the at least one pre-separator module can be optionally arranged in the two opposite orientations in the Vorabscheidersystemgehäuse. Thus, the at least one housing-side receiving arrangement can be used equally for both opposite orientations of the at least one pre-separator module.

In a further advantageous embodiment, a module-side receiving arrangement of at least one pre-separator module with respect to at least one imaginary module-side module reference axis, in particular a vertical module-side module reference axis, at least functionally symmetrical, such that the at least one pre-separator module optionally in the two opposite orientations in the Vorabscheidersystemgehäuse can be arranged. By rotating the at least one pre-separator module about the at least one module-side module reference axis by 180 °, the orientation can be reversed, wherein overall at least the functional configuration of the module-side receiving arrangement remains the same.

The housing-side receiving arrangement of the Vorabscheidersystemgehäuses may advantageously have two respect to the at least one housing-side module reference axis opposite receiving elements. With regard to their shape and size, the opposite receiving elements can be symmetrical, in particular identical, relative to the at least one housing-side module reference axis, so that the housing-side receiving elements can optionally correspond to one or, if present, two corresponding module-side receiving elements. Correspondingly, the at least one module-side receiving arrangement may have two module-side receiving elements which are symmetrical with respect to their respective module-side module reference axis.

Alternatively, the housing-side receiving arrangement may have only one housing-side receiving element, which can optionally interact with one of two opposite module-side receiving elements of the module-side receiving arrangement. Conversely, the module-side receiving arrangement may have only one module-side receiving element, which may optionally cooperate with one of two opposite housing-side receiving elements of the housing-side receiving arrangement.

The receiving elements may advantageously comprise or consist of frames, plates, webs, in particular positioning webs, receiving openings and / or receiving frames or the like.

Advantageously, the housing-side module reference axes for at least two, in particular all, Vorabscheidermodule in a common plane, in particular perpendicular to the main flow axis, lie. At least two housing-side module reference axes can run in different planes. At least one housing-side module reference axis may extend in a plane perpendicular or oblique to the main flow axis.

Overall, the Vorabscheidersystemgehäuse outside with respect to at least one oblique to the main flow axis, in particular vertical, central axis, in particular a vertical Abscheidergehäuse reference axis, between the two arrival / downstream sides asymmetrically.

Advantageously, at least one pre-separator module can have at least one pre-separator cell, preferably several, in particular six, pre-separator cells. In this way, multiple pre-separator cells can simply be arranged together in the corresponding pre-separator system. Advantageously, identical or different pre-separator cells may be arranged in at least one pre-separator module.

Advantageously, at least one pre-separator module, preferably several, in particular four pre-separator modules, can be arranged in the pre-separator system housing. Advantageously, identical or different pre-separator modules can be arranged in a pre-separator system housing.

Advantageously, at least one pre-separator module can be in one piece or in several pieces. The pre-separator module itself can be composed in several parts of modular components. Advantageously, the at least one pre-separator module, in particular a Zyklonmodulbox, have at least one flow tube in which at least one clean air exhaust pipe, in particular a dip tube, can be arranged. Advantageously, a plurality of flow tubes can be connected to one another, in particular by means of a support plate, in particular on the inflow side. Advantageously, a plurality of clean air exhaust pipes, in particular by means of a support plate, in particular a dip tube plate, in particular downstream can be connected to each other.

Advantageously, at least one outflow-side support plate and / or at least one upstream-side support plate at least form a module-side receiving element. The at least one support plate may correspond modularly to at least one corresponding housing-side receiving element.

It can be provided Vorabscheidermodule, each of which may have a different number of the same or different clean air exhaust pipes and / or flow tubes. In this way, the flexibility of the pre-separator system can be further increased.

The filter system, in particular the pre-separator system, can advantageously be part of an air line area, in particular an air intake tract or an air outlet tract, an internal combustion engine of a motor vehicle, a construction or agricultural machine and / or a compressor. It can serve for the purification of combustion air or engine air, which is supplied to the internal combustion engine. However, the invention is not limited to a filter system of an air line region of an internal combustion engine of a motor vehicle and / or a construction or agricultural machine. Rather, it can also be used in other types of filter systems for gaseous fluids of motor vehicles and / or construction or agricultural machinery. In which Filter system may also be an interior filter system. The filter system can also be used outside the automotive industry, especially in industrial engines.

Air filter systems according to the invention for the filtration of combustion air can also ensure an increased air flow rate through the engine in internal combustion engines with increased engine power, which correspond in particular to strict emission guidelines.

The filter system according to the invention can be constructed very compact with the Vorabscheidersystem invention and can be used to save space in machines in which also a large number of modules, in particular an air conditioner are used by default. The compact filter system according to the invention can be accommodated in a space of a vehicle or a machine that is reduced by corresponding assemblies.

The pre-separator system ensures a pre-separation of medium, in particular of particles and / or water, from the fluid to be cleaned, in particular air, before it reaches the further stages of the filter system, in particular at least one main filter element and / or one secondary filter element. In this way, the service life of the other stages of the filter system can be extended. In addition, a cleaning efficiency can be improved. The pre-separator system may advantageously be realized as a so-called cyclone pre-separator system.

The multi-stage filter system can be advantageously constructed as a so-called inline filter system. In this case, the individual stages of the filter system, namely the pre-separator system and at least one filter element, in particular a main filter element and a secondary filter element, are arranged through the main flow axis one behind the other for the fluid to flow through. In the housing base filter elements with different expansion can be arranged axially to the main flow axis. In this case, a long filter element protrude partly into the adapter space. In this case, the pre-separator system can be arranged outside the adapter space. When using shorter filter elements, the pre-separator system can be arranged to save space at least partially in the adapter space.

In a further advantageous embodiment, the Vorabscheidersystemgehäuse in the two connection areas different outer cross-sections, in particular different dimensions and / or different shapes, have. In this way, the pre-separator system can optionally be arranged with a larger connection area outside the adapter space from the outside on the housing base body or be arranged with the opposite smaller connection area within the adapter space.

In another advantageous embodiment, the pre-separator system housing can have two separator-side connection sections, in particular on at least one, in particular on at least two, separator-side connection element, in particular on at least one separator-side connection flange, which can act in opposite directions with respect to the main flow axis and optionally with at least one respectively corresponding Filter-side connection portion, in particular the same or one of a plurality of identical or different filter-side connection sections, in particular on at least one filter-side connection element, in particular on the same or on one of several identical or different filter-side connection elements, in particular at least one filter-side connection flange, for connecting the Vorabscheidersystems optionally with a the arrival / downstream sides in advance with the housing body in combination can be brought. With the two separator-side connection sections and at least one, in particular a plurality of, filter-side connection sections, the pre-separator housing and the housing base body can be modularly connected to one another. Depending on the orientation of the pre-separator system housing, the two connection elements can optionally face the housing base body relative to the adapter space.

Advantageously, two separator-side terminal sections can be provided, which are realized on two corresponding separator-side connection elements. Alternatively, a single separator-side connection element can realize in each case one of the two separator-side connection sections on opposite sides with respect to the main flow axis.

Advantageously, at least one separator-side, in particular outer, connection element can be arranged with two opposite separator-side closure sections at or in the vicinity of one of the inlet / outflow sides of the pre-separator system housing. With the one, in particular outer, connection section, the pre-separator system housing can be fastened outside the adapter space to the housing base body. After a corresponding rotation through 180 °, the pre-separator system housing by means of the opposite, in particular inner, connecting portion are arranged within the adapter space.

At least one separator-side, in particular inner, connection element can advantageously be arranged between the two arrival / outflow sides of the pre-separator housing. This separator-side connection element may have a separator-side, in particular an inner and an outer connection section or only one side of the separator-side, in particular an inner, connection section on both sides opposite to the main flow axis.

Advantageously, two separator-side connecting elements, in particular an inner and an outer terminating element, may be provided, each of which may have one of the separator-side connecting sections, in particular an inner or an outer connecting section.

Advantageously, the housing base body may have at least one filter-side connection element with a filter-side connection section. The at least one filter-side connection section can be designed such that at least one of the two separator-side connection sections, in particular optionally both separator-side connection sections, can correspond to it. Alternatively, at least two filter-side connection sections can be provided which are each compatible with one of two different separator-side connection sections.

Advantageously, at least one separator-side connection section and a corresponding housing-side connection section can each be asymmetrical with respect to at least one corresponding center axis, in particular a horizontal separator housing reference axis, in a plane perpendicular or oblique to the main flow axis. In this way, a rotational orientation of the pre-separator system with respect to the adapter space and / or the housing base body can be predetermined by the corresponding connection sections.

Depending on the design of the connection sections, a large number of different combinations of modules of pre-separator system housings can be connected to different basic housing bodies in a different orientation and connection manner.

In a further advantageous embodiment, at least one separator-side connection section can be arranged in a connection region of the pre-separator system housing or at least form it, in which the outer dimensions can be greater than in the other connection region. With the larger connection area, the pre-separator system can be arranged outside the receiving space. The corresponding smaller connection area can be arranged within the receiving space. The at least one separator-side connecting portion can be viewed in the direction of the main flow axis at least partially at height, ie in the region of the adapter space, and / or outside of the adapter space, in particular in the main flow direction of the fluid to be filtered before the adapter space arranged. The at least one separator-side connecting portion may advantageously bear against a front edge of the housing base body and secured thereto. A corresponding filter-side, in particular outer, connecting section, in particular on a separator-side, in particular an outer, connecting element, can be realized at the end edge of the housing base body.

In a further advantageous embodiment, the Vorabscheidersystemgehäuse in particular in at least one peripheral side and / or at least one arrival / downstream have at least one closable module mounting opening for introducing and removing at least one pre-separator module. By virtue of the at least one module installation opening, at least one pre-separator module can simply be introduced into the pre-separator system housing. After insertion, the module mounting opening can be closed so that the pre-separator system housing is closed to the outside.

Advantageously, a non-destructively disclosed module cover may be provided for closing the module installation opening. In this way, the at least one pre-separator module can be removed again after a pre-assembly of the pre-separator system, replaced and / or re-installed in a different orientation. This allows the pre-separator system to be implemented even more flexibly.

Thus, in particular during maintenance of the filter system, the pre-separator system used can be changed at any time depending on the filter element used.

Advantageously, the Vorabscheidersystemgehäuse have at least one arrival / downstream side a front module cover.

The front module cover can advantageously be placed on a separator housing pot of Vorabscheidersystemgehäuses. In this way, the at least one Vorabscheidermodul be introduced through the corresponding end-side module installation opening parallel to the main flow axis in the Vorabscheidersystemgehäuse. The corresponding module cover can then be placed on and releasably or non-destructively releasably connected to the separator housing pot.

Alternatively or additionally, at least one lateral module installation opening may be arranged in a circumferential side of the pre-separator system housing, in particular the separator housing pot, which is circumferential with respect to the main flow axis. In this way, the at least one pre-separator module can be introduced from the side transversely or perpendicular to the main flow axis through the corresponding module installation opening. Accordingly, an apparent, in particular removable, or non-destructively disclosed module cover can also be arranged here.

Advantageously, at least one module cover by means of at least one material-locking and / or positive and / or non-positive connection, in particular a fit, a plug connection, an adhesive bond, a welded joint, a solder joint, a clamping connection, a locking connection, a rotary / plug connection, in particular a screw connection and / or a bayonet-type connection, or the like, or a combination of several types of connection, be directly or indirectly connected to a separator housing pot.

In a further advantageous embodiment, the Vorabscheidersystemgehäuse, in particular the housing-side receiving arrangement, at least one housing-side guiding and / or positioning element, in particular a guide rail and / or a guide frame and / or a positioning lug and / or a positioning groove, and the at least one pre-separator module, in particular the module-side receiving arrangement, at least one correspondingly compatible module-side guiding and / or positioning element for guiding and / or positioning the at least one pre-separator module in the pre-separator system housing.

Advantageously, at least one Vorabscheidermodul have a module-side positioning, which cooperate only in relation to the function of the Vorabscheidersystems, in particular the Vorabscheidermoduls, correct orientations of the at least one Vorabscheidermoduls in Vorabscheidersystemgehäuse with the corresponding housing-side positioning, in particular mesh. In wrong orientations, the positioning elements may prevent installation of the at least one pre-separator module into the pre-separator system housing. In this way, the correct position and / or orientation of the at least one pre-separator module can be predetermined in the pre-separator housing. In particular, positioning elements can contribute to corresponding discharge openings being arranged spatially below in the normal operating position of the pre-separator system.

Advantageously, at least one pre-separator module on the inflow and / or outflow side have at least one positioning frame, a positioning lug and / or a positioning groove. Advantageously, at least one positioning frame, at least one positioning groove and / or at least one positioning nose have. Advantageously, the inflow-side and out-side positioning frames / positioning lugs / positioning grooves of the at least one pre-separation module can be symmetrical in shape and size with respect to the at least one module-side module reference axis. Accordingly, the Vorabscheidersystemgehäuse on an arrival / outflow, in particular on both inflow / outflow at least one corresponding Positionierrahmen, at least one positioning groove and / or at least one positioning lug, with the at least one positioning frame, the at least one positioning lug and / or at least a positioning groove of the at least one pre-separator module can cooperate. Advantageously, at least one positioning frame can be realized on the side of the pre-separator system housing as the peripheral edge of a receiving opening.

As a result of the arrangement of the positioning elements on the inflow side and / or outflow side, the orientation of the pre-separation module in the pre-separator system housing can be predefined in a direction of installation of the at least one pre-separation module parallel to the main flow axis.

Additionally or alternatively, advantageously, the Vorabscheidersystemgehäuse have at least one housing-side guide element, which can act leader together with at least one compatible module-side guide element when installing the at least one pre-separator module. Thus, the at least one pre-separator module can be easily guided into its correct installation position. The assembly of the pre-separator system can thus be simplified.

Advantageously, in a laterally disposed module mounting opening in a peripheral side of the Abscheidergehäusetopfs at least one housing-side guide rail in a plane transversely, in particular perpendicular to Main flow axis and lead to the correct installation position of at least one Vorabscheidermodul. In this way, the at least one pre-separator module can be easily inserted and positioned from the side across the main flow axis into the pre-separator system housing.

Advantageously, at least one module-side guide element, in particular a guide edge, and / or a positioning element, in particular a positioning projection, can be arranged on a support plate of the pre-separator module.

Advantageously, at least one module-side guiding and / or positioning element can be realized by at least one module-side receiving arrangement or combined with it. Accordingly, at least one housing-side guiding and / or positioning element can be realized by at least one housing-side receiving arrangement or combined with this. In this way, several functions with few components, in particular a component can be met. Thus, a manufacturing effort and a cost of materials can be reduced.

In a further advantageous embodiment, at least one pre-separator module, in particular at least one module-side receiving arrangement, at least one module-side sealing element, in particular a seal and / or a sealing surface, a sealing device arranged for sealing cooperation with a corresponding housing-side sealing element, in particular a corresponding housing-side seal and / or sealing surface, the Vorabscheidersystemgehäuses, in particular on / in at least one housing-side receiving arrangement. In this way, the at least one pre-separator module can be sealed against the pre-separator system housing.

Advantageously, at least one module-side sealing element can be combined with a module-side receiving arrangement. Advantageously, at least one module-side sealing element can be realized on at least one support plate of the pre-separator module. Advantageously, at least one module-side sealing element can be releasably or non-destructively detachably connected to the at least one preseparating module.

Advantageously, at least one module-side sealing element may have at least one ring seal. The ring seal can advantageously surround the at least one pre-separator module with respect to a module axis parallel to the main flow axis circumferentially. In this way, a circumferential sealing with respect to the module axis is possible.

Alternatively or additionally, at least one module-side sealing element may have at least one sealing surface. At the at least one sealing surface, a corresponding, in particular housing-side sealing element, in particular a seal and / or a sealing surface, sealingly abut.

In a direction of installation of the at least one pre-separator module parallel to the main flow axis into the at least one pre-separator system housing, the at least one sealing device can act with axial sealing relative to the main flow axis. In this way, the axial sealing effect can be improved by an axial force, in particular when placing a frontal module cover on the separator housing pot of Vorabscheidersystemgehäuses.

Alternatively, in the lateral installation direction transversely to the main flow axis, the at least one sealing device can act with radial sealing with respect to the main flow direction. In this way, a positional tolerance can be better compensated.

In a further advantageous embodiment, at least one sealing device can be arranged between at least one pre-separator module and the pre-separator system housing on an outflow side of the pre-separator system, in particular of the pre-separator module, and / or at least one sealing device between at least one pre-separator module and the pre-separator system housing can be located upstream of the pre-separator system, in particular the Vorabscheidermoduls, facing to be arranged. In this way, at least one sealing device according to the clean side and / or at least seal a sealing device on the raw side.

Preferably, at least one sealing device can face the downstream side of the pre-separator system. In this way, before the at least one sealing device, other functional parts of the at least one pre-separator system, in particular at least one discharge device or discharge opening, can be fluidically arranged, which must be sealed to the clean side of the pre-separator system.

Alternatively or additionally, at least one sealing device may be provided on the inflow side.

In a further advantageous embodiment, the Vorabscheidersystemgehäuse and / or at least one Vorabscheidermodul at least one discharge, in particular a Staubaustragsöffnung and / or a Staubaustragsstutzen, have for discharging with the Pre-separator, in particular the at least one Vorabscheidermodul, from the fluid to be cleaned separated medium, in particular particles and / or water.

Advantageously, the at least one discharge device may be spatially down in the normal operating orientation of the pre-separator system. In this way, the separated media can, following gravity, sink down and leave the pre-separator system.

Advantageously, the at least one discharge device can be arranged in fluid flow before at least one sealing device, in particular at least one sealing device of the pre-separator system against the housing base body and / or at least one sealing device of at least one pre-separator module against the pre-separator system housing. In this way, the at least one discharge device can be easily sealed against the clean side of the Vorabscheidersystems.

Advantageously, each pre-separator cell of a pre-separator module can have at least one discharge device, in particular a discharge opening. Advantageously, the discharge opening can be arranged in a flow tube of a pre-separator cell, in particular a cyclone cell.

Advantageously, at least one central discharge device, in particular a central dust discharge opening and / or a central dust discharge connection, can be arranged on a peripheral side of the pre-separator system housing.

Advantageously, at least one central discharge device of the pre-separator system housing can be arranged on a peripheral side, which is radially opposite the main flow axis, of an installation opening for the pre-separator module.

Furthermore, the technical problem with the filter system according to the invention is solved in that the pre-separator system comprises a Vorabscheidersystemgehäuse with two arrival / Abströmseiten for to be cleaned fluid with respect to a main flow axis axially opposite sides and at least one Vorabscheidermodul that in the Vorabscheidersystemgehäuse between the two arrival / Outflow sides for the fluid is arranged to flow through, the Vorabscheidersystemgehäuse at both inflow / outflow each having a connection area for arranging the Vorabscheidersystems in / on an adapter space of a housing base of the filter system with either one of the arrival / outflow sides ahead, the two connection areas with respect to configuration , In particular position and / or shape and / or dimension, are different, such that the Vorabscheidersystem introduced with the two connection areas at different depths in the adapter space, in particular also except can be arranged half of the adapter space, and wherein the at least one pre-separator module can be selectively arranged in two with respect to the main flow axis opposite orientations in the Vorabscheidersystemgehäuse.

Incidentally, the features and advantages shown in connection with the pre-separator system according to the invention and the filter system according to the invention and their respective advantageous embodiments apply mutatis mutandis and vice versa. The individual features and advantages can, of course, be combined with one another, whereby further advantageous effects can be achieved that go beyond the sum of the individual effects.

Brief description of the drawings

Further advantages, features and details of the invention will become apparent from the following description, are explained in more detail in the embodiments of the invention with reference to the drawing. The person skilled in the art will expediently also individually consider the features disclosed in the drawing, the description and the claims in combination and combine these into meaningful further combinations. It show schematically

1 an air filter system according to a first embodiment with a first housing base, in which a long main filter element is partially disposed in an adapter space of the housing body and on which a Vorabscheidersystem is arranged outside of the adapter space;

2 a detailed view of the Vorabscheidersystems from the 1 with a view of its upstream side;

3 the pre-separator from the 1 and 2 with a view of its downstream side;

4 the pre-separator system from the 2 with removed module cover;

5 the pre-separator system from the 4 in which two out of four pre-separator modules are removed;

6 an empty housing pot of Vorabscheidersystems from the 1 to 5 ;

7 a detailed view of one of the Vorabscheidermodule the Vorabscheidersystems from the 1 to 5 ;

8th a detailed view of an upstream support plate with flow tubes of Vorabscheidermoduls from the 7 ;

9 an air filter system according to a second embodiment with a compared to the first embodiment of the 1 a shorter main filter element, wherein a pre-separator system is disposed within an adapter space;

10 an air filter system according to a third embodiment, in which a long main filter element is partially disposed in an adapter space and a Vorabscheidersystem is arranged on the housing base outside the adapter space;

11 the pre-separator system from the 10 with a view of its inflow side;

12 an exploded view of the pre-separator from the 10 and 11 ;

13 a plan view of the Vorabscheidersystem from the 11 to 13 with a module cover removed at the top of the pre-separator system housing;

14 an air filter system according to a fourth embodiment with a compared to the third embodiment of the 10 shorter main filter element, wherein a Vorabscheidersystem is disposed within an adapter space.

In the figures, the same components are provided with the same reference numerals.

Embodiment (s) of the invention

In the 1 is an air filter system 10 shown according to a first embodiment. The air filter system 10 can be used for example in an air intake tract of a construction or agricultural machine for the filtration of air.

The air filter system 10 includes a filter housing 12 with an inlet 14 for air to be cleaned and an outlet 16 (covered here) for purified air. Between the inlet 14 and the outlet 16 are with respect to a main flow axis 18 the air to be cleaned in succession a Vorabscheidersystem 19 with four pre-separator modules 20 , a main filter element 22 and one in the 1 concealed secondary filter element arranged. The air filter system 10 is structured in three stages as a so-called inline system. This means that the three filter stages of the air filter system 10 namely the pre-separator system 19 , the main filter element 22 and the secondary filter element, substantially linearly one behind the other along the main flow axis 18 are arranged.

For the sake of clarity, an XYZ coordinate system is shown in the figures, whose X-axis is parallel to the main flow axis 18 runs.

The filter housing 12 comprises an approximately cuboid housing base body 26 , which is preferably integrally molded from plastic. The housing body 26 preferably has an integral with the housing body 26 trained or (in) releasably attached to this outlet, which the outlet 16 forms and that from a respect to the main flow axis 18 projecting end-side end wall to the outside. The downstream end wall of the housing body 26 is in one in the 1 lower area with the outlet 16 to the main flow axis 18 bevelled.

On one to the main flow axis 18 and the XY plane of the XYZ coordinate system substantially parallel cover side, the housing body 26 a mounting hole 28 for installation, removal and maintenance of the main filter element 22 and the secondary filter element. The installation opening 28 extends nearly over the entire with respect to the main flow axis 18 axial expansion of the housing body 26 , The installation opening 28 extends laterally into opposite side walls of the housing body 26 , In operational condition is the mounting hole 26 with one, in the 1 not shown, removable housing cover of the filter housing 12 locked.

The installation opening 28 is from a lid picking rim 32 Surrounded circumferentially. At the lid receiving edge 32 is in the ready state, a corresponding lid edge of the housing cover circumferentially closed tightly.

On the outlet 16 with respect to the main flow axis 18 axially facing inlet side has the housing body 26 via an adapter room 46 , The adapter room 46 is approximately cuboid. In the in the 1 shown embodiment is in the adapter space 46 an inflow-side part of the main filter element 22 arranged, which is designed here in a long embodiment.

The adapter room 46 is through opposite side walls 48 , a bottom wall 50 and a ceiling section 53 of the housing body 26 with respect to the main flow axis 18 surrounded circumferentially. The side walls 48 are parallel to the XZ plane of the XYZ coordinate system. The bottom wall 50 and the ceiling section 53 each run parallel to the XY plane.

On her the outlet 16 with respect to the main flow axis 18 axially facing away from the side walls form 48 , the bottom wall 50 and the ceiling section 53 one with respect to the main flow axis 18 circumferentially extending outer filter-side connection flange 54 , At the outer filter-side connection flange 54 In the embodiment shown, a corresponding outer separator-side connection flange 56 a pre-separator system housing 58 of the pre-separator module 20 tightly fastened. "Outer" and "inner" here refers to the location of the corresponding connection flange relative to the adapter space 46 or relative to the pre-separator system housing 58 ,

The pre-separator system housing 58 also forms part of the filter housing 12 , It includes the inlet on its upstream side 14 ,

In the usual operating orientation of the air filter system 10 is located, as in the 1 shown a dust outlet 62 spatially at the bottom of the pre-separator system 19 , In this way, with the pre-separator system 19 deposited water and dust particles following gravity fall down and be discharged there.

On the outlet 16 with respect to the main flow axis 18 facing side is the adapter space 46 to the interior of the housing body 26 open. Likewise, the adapter room 46 on the outlet 16 with respect to the main flow axis 18 axially facing away from the side, so that the Vorabscheidersystem 19 connected there, for example, as in the present example inserted or put on can be.

The installation opening 28 and the lid receiving edge 32 extend on the inlet side of the filter housing 12 over the adapter room 46 , The adapter room 46 is in this way with the housing cover removed, as in the 1 shown through the mounting hole 28 freely accessible.

Between the adapter room 46 and the outlet 16 has the housing body 26 an element storage room 64 for the main filter element 22 on. The element reception room 64 is through the mounting hole 28 accessible from outside. The installation opening 28 and the lid receiving edge 32 preferably extend over the entire extent of the element receiving space 64 on the cover side of the housing basic body 26 , The element reception room 64 is to the adapter room 46 open.

The main filter element 22 has as a filter body preferably a filter bellows, for example, a bellows on. However, other filter body designs are also possible, such as filter body formed by alternately superimposed smooth and corrugated layers of filter medium, mutually closed channels. The bellows may consist of a zigzag folded filter medium, such as filter paper.

The bellows height is a distance between the inflow-side end face and the outflow-side end face of the filter bellows. For bellows, the bellows height is defined by the pleat height. The bellows height is perpendicular to the main flow axis in the embodiment shown 18 viewed in the Z direction from the built-in state of the mounting hole 28 facing side reduced to the bottom side. The filter bellows and thus the main filter element 22 have an overall prismatic shape. The extent of the main filter element 22 in the direction of the main flow axis 18 , ie the element axis, preferably decreases perpendicular to the main flow axis 18 viewed from the mounting hole 28 to the bottom of the housing body 26 toward the dimension of the element accommodating space 64 ,

A Hauptelementanströmseite, which in a second embodiment in the 9 recognizable and with the reference numeral 68 is provided, preferably runs perpendicular to the main flow axis 18 , In cross-section perpendicular to the main flow axis 18 is the main filter element 22 rectangular. The filter bellows is perpendicular to the main flow axis 18 and preferably also perpendicular to the z-axis a rectangular cross-section. The circumferential side walls of the filter bellows run in pairs parallel to each other and parallel to the main flow axis 18 , The broad sides extend parallel to the XZ plane and the narrow sides extend parallel to the XY plane. The main element downstream side 40 of the main filter element 22 runs obliquely to the main element inflow side 68 and obliquely to the element axis, ie to the main flow axis 18 , The term "oblique" is to be understood in particular as not equal to 0 ° and not equal to 90 °.

The filter bellows is circumferentially spaced from the main flow axis 18 coaxial element frame 70 surrounded, which has the outer shape of the filter bellows. On its the mounting hole 28 facing upper peripheral side, the element frame 70 outside a handle 72 on to the main filter element 22 taken and out of the filter housing 12 can be removed and installed in this.

The outer filter-side connection flange 54 has an outer filter-side connection section 55 on, located on the upstream edge of the side walls 48 , the bottom wall 50 and the ceiling section 53 of the housing body 26 perpendicular to the main flow axis 18 extends and directed against the air flow.

The outer filter-side connection flange 54 and the outer filter-side terminal portion 55 are symmetrical to a horizontal median plane of the adapter space 46 , which runs parallel to the XY plane.

The pre-separation system 19 has the outer separator-side connection flange 56 with an outer separator side connection section 57 and an inner separator-side connection flange 156 with an inner separator side connection section 157 on. The separator-side connection flanges 56 and 156 are outside the periphery of the pre-separator system housing 58 each arranged in one piece.

In conjunction with the in the 1 shown housing body 26 and the main filter element 22 in long form, only the outer separator side flange is 56 with the corresponding outer separator-side connection section 57 used. The inner separator-side connection flange 156 with the inner separator side connection section 157 are optionally provided for use in conjunction with a housing base 26 with a corresponding inner filter-side connection flange 154 , which has an inner filter-side connection section 155 has, for example, in the 9 is shown. The connection flanges 56 . 156 . 54 and 154 each serve as connection elements.

The outer separator-side connection flange 56 extends with respect to the main flow axis 18 circumferentially contiguous along the downstream, the housing main body 26 facing edge of a separator housing pot 100 the pre-separator housing 58 , The action surface of the outer separator side terminal portion 56 shows from an interior of the pre-separator housing 58 in the direction of the air flow parallel to the main flow axis 18 away to the corresponding outer filter-side connection portion 55 of the housing body 26 , with which the outer separator-side connection section 57 cooperates connection technology. The side of the pre-separator system 19 downstream of the outer separator-side connection flange 56 forms an outer connection area 90 on a downstream side of the pre-separator system housing 58 ,

The inner separator-side connection flange 156 has the inner separator-side terminal portion 157 on, whose effect surface largely the effective area of the outer separator-side terminal portion 57 is opposite. The inner separator-side connection flange 156 and the inner separator side terminal portion 157 run on the dust discharge nozzle 62 in the direction of the z-axis side facing in the 1 below, in a plane perpendicular to the main flow axis 18 , ie parallel to the YZ plane. The said plane of the inner separator side termination section 157 is located from the outer separator-side connection flange 56 in the direction of the main flow axis 18 looks at something behind an imaginary trap housing reference plane 94 the pre-separator system housing 58 , The separator housing reference plane 94 preferably extends centrally between and / or parallel to the two end faces of the Vorabscheidersystemgehäuses 58 perpendicular to the main flow axis 18 ,

The separator housing reference plane 94 is defined by an imaginary vertical separator housing reference axis 96 and an imaginary horizontal separator housing reference axis 98 clamped. The separator housing reference axes 96 and 98 are perpendicular to the main flow axis 18 , The vertical separator housing reference axis 96 runs parallel to the z-axis. The horizontal separator housing reference axis 98 runs parallel to the y-axis.

On the dust discharge nozzle 62 facing side are the inner separator side flange 156 and the inner separator side terminal portion 157 to the outer separator-side connection flange 56 offset. The side areas of the inner connection-side connection flange 156 and the inner terminal-side terminal portion 157 each correspondingly have a kink. On the dust discharge nozzle 62 opposite side is the inner separator side flange 156 in the outer separator-side connection flange 56 above.

An inner connection area 92 the pre-separator system 19 is through between the inner separator side flange 156 with the inner separator side connection section 157 and the free end edge of the pre-separator system housing 58 formed circumferential area. The inner connection area 92 has a smaller outer cross section than the outer one terminal area 90 in the area of the outer separator-side connection flange 56 ,

Overall, the Vorabscheidersystemgehäuse 58 outwardly unsymmetrical with respect to both the vertical separator housing reference axis 96 as well as with respect to the horizontal separator housing reference axis 98 ,

In the pre-separator system housing 58 are preferably a total of 4 or six pre-separator modules 20 arranged, but also other quantities, especially even quantities preferably between 2 and 10, are conceivable. The identical in their design Vorabscheidermodule 20 are presently designed as cyclone blocks. In each cyclone block are six pre-separator cells 74 , which may also be referred to as cyclone cells, in particular inline cyclone cells, connected in parallel in a so-called multi-cyclone block in terms of flow. In the cyclone blocks pre-deposited dust or water is through the Staubaustragsstutzen 62 from the pre-separator system housing 58 away.

The separator housing pot 100 the pre-separator system housing 58 has on a front side a module installation opening 102 on that with a module cover 104 can be covered. The module installation opening 102 is in the 4 to 6 easily recognizable, in which the separator housing pot 100 without module cover 104 is shown.

A pot bottom 103 of the separator housing pot 100 at the module installation opening 102 facing away from the front and the module cover 104 each have four receiving openings 106 of identical shape and size. In the embodiment shown in FIG 1 forms the pot bottom 103 of the separator housing pot 100 the inflow side and the module cover 104 the downstream side of the Vorabscheidersystemgehäuses 58 , With reverse installation of the pre-separator system 19 as in a second embodiment in 9 Shown is the pot bottom 103 the downstream side and the module cover 104 the inflow side.

The receiving openings 106 each serve to receive a paired positioning webs 108 the pre-separator modules 20 , The receiving openings 106 are at four pre-separator modules 20 preferably each arranged at a corner of an imaginary rectangle. With mounted module cover 104 are the receiving openings 106 in shape and arrangement with respect to the trap housing reference plane 94 on the side of the pot bottom 103 of the separator housing pot 100 and on the side of the module cover 104 arranged opposite. Two pairs of opposite receiving openings 106 in the module cover 104 and in the bottom of the pot 103 form a housing-side receiving arrangement for receiving one of the pre-separator modules 20 , The two receiving openings 106 Each receptacle arrangement is symmetrical with respect to a corresponding housing-side module reference axis 107 , The total of two housing-side module reference axes 107 run, such as in the 6 shown parallel to the z axis in a plane parallel to the yz plane.

On the respective sides, the dust discharge nozzle 62 the pre-separator system housing 58 facing away from each projecting a positioning nose 110 into the receiving openings 106 of the pot bottom 103 , The positioning noses 110 are located centrally in the corresponding upper boundary sides of the receiving openings 106 ,

The two opposite positioning webs 108 a pre-separator module 20 are concerning one in the 7 shown as an imaginary vertical module-side module reference axis 109 symmetrical in shape, size and arrangement. The module-side module reference axis 109 runs in a plane perpendicular to the main flow axis 18 parallel to the z-axis and falls in the installed state of the pre-separator module 20 in the pre-separator system housing 58 with the corresponding housing-side module reference axis 107 together.

The positioning bars 108 the pre-separator modules 20 each point to the positioning lugs 110 suitable positioning grooves 112 of identical shape, size and arrangement. The positioning bars 108 each project in the installed state in one of the receiving openings 106 into it. The positioning lugs grip 110 each in the corresponding positioning grooves 112 one.

The preseparator modules 20 can move in two different orientations 180 ° around the corresponding module-side module reference axis 109 rotated in the pre-separator system housing 58 to be ordered. The pairwise opposite positioning webs 108 the pre-separator modules 20 each form a module-side recording arrangement. Thus, a flow direction of the air through the pre-separator modules 20 relative to the orientation of the pre-separator system housing 58 be reversed.

The positioning bars 108 are located on respective paired support plates 114 the pre-separator modules 20 , The six pre-separator cells 74 of the respective pre-separator module 20 are each between a respective upstream support plate 114 and a downstream support plate 114 of the corresponding pre-separator module 20 arranged.

The downstream support plates 114 each have six clean air exhaust pipes 116 the pre-separator cells 74 on, which can also be referred to as dip tubes. Corresponding are six flow tubes 118 the pre-separator cells 74 integral with the upstream support plates 114 connected. The clean air exhaust pipes 116 and the flow tubes 118 each run parallel to each other and parallel to the main flow axis 18 ,

The flow tubes 118 are connected in one piece to stabilize each other by means of connecting webs. On its downstream side, each flow tube points 118 on the circumference of a discharge opening 120 to discharge with the pre-separator cells 74 separated dust and water. The discharge openings 120 are each at an angle to the positioning groove 112 remote from the lower peripheral side of the flow tubes 118 , In the operational orientation of the air filter system 10 are the discharge openings 120 spatially down at the flow tubes 118 on the dust outlet 62 facing side. The correct orientation of the pre-separator modules 20 This is due to the interaction of the positioning lugs 110 and the positioning grooves 112 ensured. The discharge openings 120 are located in front of the corresponding downstream support plate with respect to the airflow 114 ,

Front side on each downstream support plate 114 is also a module seal 122 arranged in the form of a ring seal, which the positioning web 108 surrounds peripherally coherently. The module seals 122 act with a corresponding sealing surface on the facing inside of the module cover 104 sealing together.

The preseparator modules 20 are made in two parts in total, namely from the downstream support plate 114 with the corresponding clean air exhaust pipes 116 and the upstream support plate 114 with the flow tubes 118 ,

The module cover 104 and the bottom of the pot 103 In addition, each have a cross-shaped web on their outsides 124 on. The cross-shaped bars 124 can stabilize the module cover 104 or pot bottom 103 and contribute to the positive influence of the air flow.

For the production of the air filter system 10 become the housing body 26 , the housing cover, the pre-separator system 19 , the main filter element 22 and the secondary filter element prefabricated separately. These are the basic housing body 26 , the housing cover, the separator housing pot 100 , the module cover 104 , the upstream support plates 114 with the flow tubes 118 and the downstream support plates 114 with the clean air exhaust pipes 116 each formed with corresponding molds made of plastic.

The upstream support plates 114 with the flow tubes 118 and the downstream support plates 114 with the clean air exhaust pipes 116 each become a pre-separator module 20 plugged together.

The preseparator modules 20 depending on the installation direction of the pre-separator system housing 58 in the adapter room 46 in a corresponding flow orientation into the pre-separator system housing 58 to be built in. In the in the 1 to 8th The exemplary embodiment shown, the Vorabscheidermodule 20 with their upstream support plates 114 and the flow tubes 118 so ahead in the appropriate receiving openings 106 of the pot bottom 103 of the separator housing pot 100 plugged that the corresponding positioning noses 110 in the corresponding positioning grooves 112 to grab. Subsequently, the Vorabscheidersystemgehäuse 58 with the module cover 104 locked.

To assemble the pre-separator system 19 with the outer separator-side connection flange 56 advancing axially to the main flow axis 18 on the open side of the adapter room 46 , respectively on the outer filter-side connection section 55 , put on. In the process, the dust discharge nozzle becomes 62 to the bottom wall 50 of the housing body 26 directed towards. The pre-separator system 19 is for example by means of screws to the housing body 26 tightly fastened.

Subsequently, the secondary filter element is passed through the installation opening 28 in the element reception room 64 inserted and in front of the outlet 16 placed.

The main filter element 22 is with its narrow side ahead through the mounting hole 28 substantially perpendicular to the main flow axis 18 in the element reception room 64 introduced so that the oblique Hauptelementabströmseite 40 to the outlet 16 and the secondary filter element. The axial seal is in the assembled state at a corresponding sealing surface of the housing body 26 at.

Subsequently, the housing cover is on the mounting hole 28 mounted and, for example by means of brackets on the housing body 26 fixed.

In the 9 is an air filter system 10 shown according to a second embodiment. Those elements that belong to those of the first Embodiment of the 1 to 8th are similar, are provided with the same reference numerals.

In contrast to the first embodiment, the housing base body is in the second embodiment 26 designed according to a second design. In the housing body 26 is a main filter element 22 arranged in a shorter design, which is not in the adapter room 46 protrudes. Instead, the inner connection area 92 of similar components as the pre-separator system 19 from the first embodiment existing Preabscheidersystems 19 in the adapter room 46 arranged. The pre-separator system 19 is with its inner separator-side connection flange 156 with a corresponding inner filter-side connection flange 154 connected.

Compared to the first embodiment of the 1 is the orientation of the pre-separator system 19 relative to the housing body 26 around the vertical separator body reference axis 96 rotated by 180 °. The orientation of the pre-separator modules 20 relative to a pre-separator system housing 58 the pre-separator system 19 are corresponding to 180 ° around the respective module-side module reference axes 109 turned.

The inner filter-side connection flange 154 has an inner filter-side connection portion 155 on whose area of action from the outlet 16 shows away. The inner filter-side connection section 155 is complementary to the inner separator side terminal portion 157 , The inner filter-side connection flange 154 and the inner filter-side terminal portion 155 run on the mounting hole 28 in the direction of the z-axis facing away in a plane perpendicular to the main flow axis 18 , ie parallel to the YZ plane.

On the mounting hole 28 facing side are the inner filter-side flange 154 and the inner filter-side terminal portion 155 in the direction of the main flow axis 18 offset to the inflow side forward. The side areas of the inner filter-side connection flange 154 and the inner filter-side terminal portion 155 each correspondingly have a kink.

In contrast to the first embodiment of the 1 to 8th are the positioning grooves in the second embodiment 112 at the bottom of the pre-separator modules 20 arranged in the installed state the Staubaustragsstutzen 62 is facing. The discharge openings 120 are located in the respective positioning grooves 112 facing circumferential sides of the flow tubes 118 , Accordingly, the positioning lugs are 110 on the dust discharge nozzle 62 facing sides of the receiving openings 106 ,

In the 10 to 13 is an air filter system 10 shown according to a third embodiment. Those elements which correspond to those of the first and the second embodiment of the 1 to 9 are similar, are provided with the same reference numerals. The housing body 26 is similar, as the housing base body of the first embodiment of the 1 , In contrast to the first embodiment 1 are the outer filter-side connection flange 54 and the outer filter-side terminal portion 55 surrounded by a circumferentially extending projection. Four with respect to the main flow axis 18 Circumferentially distributed sleeve-like sections together form the inner separator-side connection flange 156 , The axes of the sleeve-like sections are parallel to the main flow axis 18 , Their ends facing the upstream side together form the inner separator-side connection section 157 ,

The air filter system 10 has a pre-separator system 19 according to a second design. In contrast to the Vorabscheidersystem according to the first design of the 1 to 9 has the separator housing pot 100 the pre-separator system housing 58 of the second preseparator system 19 instead of a removable downstream module cover 104 a side module cover 204 on. With the side module cover 204 can be a module installation opening 202 in the dust discharge nozzle 62 facing away from the upper peripheral side of Vorabscheidersystemgehäuses 58 be closed.

The module cover 204 has on opposite sides in each case a detent spring element, which in corresponding latching openings of the Abscheidergehäusetopfs 100 can intervene. The side module cover 204 extends over the entire upper peripheral side of the Abscheidergehäusetopfs 100 ,

Furthermore, on the mutually facing inner sides of the end wall of the Abscheidergehäusetopfs 100 with the separator side connection flanges 56 and 156 and the opposite end wall in each case an inner guide rail 126 arranged, which extend parallel to each other, perpendicular to the main flow axis and parallel to the Z-axis. The inner guide rails 126 are located with respect to the main flow axis 18 axially opposite sides of the vertical separator housing reference axis 96 ,

Two outer guide rails 127 are in the range of relative to the vertical separator housing reference axis 96 diagonally opposite corners of the pre-separator system housing 58 arranged inside on its lateral peripheral walls.

With the guide rails 126 and 127 can when installing the pre-separator modules 20 the corresponding support plates 114 the pre-separator modules 20 be guided. The side edges of the support plates 114 act as guiding and positioning elements 208 , On corresponding positioning webs 108 is omitted in this embodiment.

On positioning noses 110 and positioning grooves 112 becomes the second pre-separator system 19 also omitted. Instead, have the downstream support plates 114 on a side edge a web-like positioning projection 210 on.

The inner guide rails 126 each have an inner rail-side positioning projection 212 on. The inner rail-side positioning protrusions 212 the two inner guide rails 126 extend in opposite directions respectively parallel to the YZ plane. The outer guide rails 126 each have an outer rail-side positioning projection 312 on. The outer rail-side positioning protrusions 312 extend in opposite directions respectively parallel to the YZ plane. With the positioning projections 212 and 312 will prevent the pre-separator modules 20 spatially vertically in the wrong orientation can be installed by using the module-side positioning projections 210 To block.

The inner rail-side positioning protrusions 212 facing away backs of the inside guide rails 126 for the pre-separator modules 20 on one side each form a guide for the adjacent pre-separator modules 20 up and vice versa.

The pre-separator modules 20 are at their two end faces at their side edges with respect to the respective module-side module reference axis 109 , which is parallel to the z-axis, with respect to your holding and guiding function symmetrical. Accordingly, the receiving openings 106 and the positioning and guiding areas through the guide rails 126 and 127 and the positioning projections 212 and 312 be realized, on the side of Vorabscheidersystemgehäuses 58 with respect to the corresponding vertical housing-side module reference axis 107 symmetrical. The respective inner positioning projection 212 for a pre-separator module 20 is with respect to the corresponding housing-side module reference axis 107 diagonally opposite a symmetrical outer positioning projection 312 assigned.

The pre-separator modules 20 can with respect to the main flow axis 18 in two opposite directions of flow in the separator housing pot 100 to be built in.

The module cover 204 can be removed at any time so that the pre-separator modules 20 For example, when changing from a long main filter element to a short main filter element and when turning the Vorabscheidersystemgehäuses 58 around the vertical separator housing reference axis 96 at any time in the pre-separator system housing 58 also be turned around.

In 14 is the pre-separator system 19 according to the second design of the 10 to 13 in conjunction with a housing body 26 shown according to a fourth design. Here is the second pre-separator system 19 rotated 180 ° inside the adapter space 46 arranged. The connection with the outer filter-side connection section 55 takes place with the inner separator-side connection section 157 ,

The side walls 48 and the bottom wall 50 of the housing body 26 also each have an optionally usable passage 60 on. In the embodiment shown, the Staubaustragsstutzen 62 through the passage 60 in the bottom wall 50 , When using a pre-separator system in which a dust discharge nozzle leads through a side wall of the pre-separator system housing, the dust discharge nozzle can optionally through one of the two optional passages 60 in the side walls 48 be guided.

In all illustrated embodiments, the same housing cover can be used. In this way, only a corresponding mold is required for the realization of the housing cover.

The basic housing body, the Vorabscheidersystemgehäuse and Vorabscheidermodule can in particular be modularly combined depending on the size of the main filter element used.

The basic housing body of the different designs can each be simply made by exchanging corresponding inserts of the respective mold with the otherwise same tools. Accordingly, the components of the Vorabscheidersysteme the different designs can be made only by replacing a few individual tool parts with the otherwise same tools.

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 112010001706 T5 [0003]

Claims (12)

Modular pre-separator system ( 19 ) of a multi-stage filter system ( 10 ), in particular a modular filter system, for filtering gaseous fluid, in particular air, in particular an internal combustion engine, in particular a motor vehicle, a construction or agricultural machine and / or a compressor, characterized in that the pre-separator ( 19 ) has a pre-separator system housing ( 58 ) with two inflow / outflow sides ( 103 . 104 ) for fluid to be cleaned with respect to a main flow axis ( 18 ) axially opposite sides and has at least one pre-separator module ( 20 ) contained in the pre-separator system housing ( 58 ) between the two inflow / outflow sides ( 103 . 104 ) is arranged through the fluid, wherein the Vorabscheidersystemgehäuse ( 58 ) on both inflow / outflow sides ( 103 . 104 ) each have a connection area ( 90 . 92 ) for arranging the pre-separator system ( 19 ) in / on an adapter space ( 46 ) of a housing base body ( 26 ) of the filter system ( 10 ) optionally with one of the inflow / outflow sides ( 103 . 104 ), the two connection areas ( 90 . 92 ) are different in terms of design, in particular position and / or shape and / or dimension, such that the pre-separator system ( 19 ) with the two connection areas ( 90 . 92 ) at different depths into the adapter space ( 46 ), in particular also outside the adapter space ( 46 ), and wherein the at least one pre-separator module ( 20 ) optionally in two relative to the main flow axis ( 18 ) opposite orientations in the pre-separator system housing ( 58 ) can be arranged. Pre-separator system according to claim 1, characterized in that at least one housing-side receiving arrangement ( 106 ; 126 . 127 ) of the pre-separator system housing ( 58 ) for receiving at least one pre-separator module ( 20 ) with respect to at least one housing-side module reference axis, in particular a vertical housing-side module reference axis ( 107 ) located between the two inflow / outflow sides ( 103 . 104 ) in particular in a plane perpendicular to the main flow axis ( 18 ) is at least functionally symmetrical, such that the at least one pre-separator module ( 20 ) optionally in the two opposite orientations in the pre-separator system housing ( 58 ) can be arranged. Vorabscheidersystem according to claim 1 or 2, characterized in that a module-side receiving arrangement ( 114 ) at least one pre-separator module ( 20 ) with respect to at least one imaginary module-side module reference axis, in particular a vertical module-side module reference axis ( 109 ), at least functionally symmetrical, such that the at least one pre-separator module ( 20 ) optionally in the two opposite orientations in the pre-separator system housing ( 58 ) can be arranged. Pre-separator system according to one of the preceding claims, characterized in that the pre-separator system housing ( 58 ) in the two connection areas ( 90 . 92 ) has different outer cross sections, in particular different dimensions and / or different shapes. Pre-separator system according to one of the preceding claims, characterized in that the pre-separator system housing ( 58 ) two separator-side connection sections ( 57 . 157 ) in particular on at least one, in particular on at least two, separator-side connection element, in particular on at least one separator side flange ( 56 . 156 ), which with respect to the main flow axis ( 18 ) act in opposite directions and which optionally with at least one respectively corresponding filter-side connection section ( 55 . 155 ), in particular the same or one of a plurality of identical or different filter-side connection sections, in particular on at least one filter-side connection element, in particular on the same or on one of a plurality of identical or different filter-side connection elements, in particular on at least one filter-side connection flange ( 54 . 154 ), for connecting the pre-separator system ( 19 ) optionally with one of the inflow / outflow sides ( 103 . 104 ) ahead with the housing base body ( 26 ) can be associated. Pre-separator system according to one of the preceding claims, characterized in that at least one separator side connecting portion ( 57 ) in a connection area ( 90 ) of the pre-separator system housing ( 58 ) or at least forms with, in which the outer dimensions are larger than in the other connection area ( 92 ). Pre-separator system according to one of the preceding claims, characterized in that the pre-separator system housing ( 58 ) in particular in at least one peripheral side and / or at least one inflow / outflow side ( 104 ) at least one closable module installation opening ( 102 ; 202 ) for introducing and removing at least one pre-separator module ( 20 ). Pre-separator system according to one of the preceding claims, characterized in that the pre-separator system housing ( 58 ), in particular the housing-side receiving arrangement, at least one housing-side management and / or Positioning element ( 110 ; 126 . 127 ), in particular a guide rail and / or a guide frame and / or a positioning nose and / or a positioning groove, and the at least one pre-separator module ( 20 ), in particular the module-side receiving arrangement ( 114 ), at least one correspondingly compatible module-side guiding and / or positioning element ( 108 . 112 ; 208 . 210 ) for guiding and / or positioning the at least one pre-separator module ( 20 ) in the pre-separator system housing ( 58 ). Pre-separator system according to one of the preceding claims, characterized in that at least at one pre-separator module ( 20 ), in particular on at least one module-side receiving arrangement ( 114 ), at least one module-side sealing element, in particular a seal ( 122 ) and / or a sealing surface, a sealing device is arranged for sealing cooperation with a corresponding housing-side sealing element, in particular a corresponding housing-side seal and / or sealing surface, the Vorabscheidersystemgehäuses ( 58 ), in particular on / in at least one housing-side receiving arrangement ( 106 ). Pre-separator system according to one of the preceding claims, characterized in that at least one sealing device ( 122 ) between at least one pre-separator module ( 20 ) and the pre-separator system housing ( 58 ) on a downstream side of the pre-separator system ( 19 ), in particular the pre-separator module ( 20 ) is arranged facing and / or at least one sealing device between at least one pre-separator module and the Vorabscheidersystemgehäuses an upstream side of the Vorabscheidersystems, in particular the Vorabscheidermoduls, facing arranged. Pre-separator system according to one of the preceding claims, characterized in that the pre-separator system housing ( 58 ) and / or at least one pre-separator module ( 20 ) at least one discharge device ( 62 . 120 ), in particular a dust discharge opening and / or a dust discharge nozzle, for discharging with the pre-separator system ( 19 ), in particular the at least one pre-separator module ( 20 ), from the fluid to be purified separated medium, in particular particles and / or water. Multi-stage filter system ( 10 ), in particular a modular filter system, for filtering gaseous fluid, in particular air, in particular an internal combustion engine, in particular a motor vehicle, a construction or agricultural machine and / or a compressor, with at least one modular Vorabscheidersystem ( 19 ), according to one of the preceding claims, characterized in that the pre-separator system ( 19 ) comprises a pre-separator system housing ( 58 ) with two inflow / outflow sides ( 103 . 104 ) for fluid to be cleaned with respect to a main flow axis ( 18 ) axially opposite sides and at least one pre-separator module ( 20 ) contained in the pre-separator system housing ( 58 ) between the two inflow / outflow sides ( 103 . 104 ) is arranged through the fluid, wherein the Vorabscheidersystemgehäuse ( 58 ) on both inflow / outflow sides ( 103 . 104 ) each have a connection area ( 90 . 92 ) for arranging the pre-separator system ( 19 ) in / on an adapter space ( 46 ) of a housing base body ( 26 ) of the filter system ( 10 ) optionally with one of the inflow / outflow sides ( 103 . 104 ), the two connection areas ( 90 . 92 ) are different in terms of design, in particular position and / or shape and / or dimension, such that the pre-separator system ( 19 ) with the two connection areas ( 90 . 92 ) at different depths into the adapter space ( 46 ), in particular also outside the adapter space ( 46 ), and wherein the at least one pre-separator module ( 20 ) optionally in two relative to the main flow axis ( 18 ) opposite orientations in the pre-separator system housing ( 58 ) can be arranged.

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