Separator for liquid from a gas stream and assembly kit for the separator

Abstract

The invention relates to a separator (10) for separating a liquid from a gas stream, in particular for separating oil from blow-by gas in a crankcase ventilation system (200), having at least one nozzle carrier element (102) with at least one nozzle assembly (104) with at least one nozzle (106, 108), and having an impingement element (110) arranged at least partially downstream with respect to the nozzle assembly (104), characterized in that a permanent cover device (120, 122, 124, 126) is provided for one or more nozzles (108) of the nozzle assembly (104), which cover device reduces the throughflow of the gas stream through the one or more nozzles (108) by at least 50% compared to a nozzle (106) without the cover device (120, 122, 124, 126). Furthermore, the invention relates to a fitting kit for a separator (10).

Description

Technical Field

[0001] The present invention relates to a separator for liquid from a gas stream and a Montagekit for assembling the separator. Background Technology

[0002] In reciprocating piston internal combustion engines, an oil-containing leaking gas is generated in the crankcase, known as a vent. The return of this vent to the combustion process is legally mandated worldwide and is carried out in what is known as a closed crankcase ventilation system. The most important tasks of the crankcase ventilation system include oil separation, oil return to the crankcase, and crankcase pressure regulation. Here, due to increasingly stringent exhaust regulations, the requirements for oil separation have continued to rise in recent years to protect emission-critical engine components (such as exhaust gas turbochargers, supercharger air coolers, or sensors) from power loss due to oil contamination. Oil separation not only contributes to minimizing oil consumption but also plays a crucial role in complying with exhaust emission regulations throughout the vehicle's lifespan.

[0003] An oil separator with replaceable filter elements is known from EP 3100780 A1. Summary of the Invention

[0004] The object of the present invention is to provide a suitable separator for liquid from a gas stream, the separator being suitable as a lifespan component.

[0005] Another task is to provide an assembly toolkit for this separator.

[0006] According to one aspect of the invention, the above-mentioned task is achieved by a separator for separating liquid from a gas stream, particularly for separating oil from leaks in a crankcase ventilation system, the separator having at least one nozzle carrier element having at least one nozzle assembly with at least one nozzle, and the separator having a prallelement arranged at least partially downstream of the nozzle assembly, wherein a persistent covering device is provided for one or more nozzles of the nozzle assembly, the covering device reducing the flow of gas through the one or more nozzles by at least 50% compared to nozzles without the covering device.

[0007] A permanent cover for one or more nozzles of the nozzle assembly can be changed during the initial assembly of the separator or during repeated maintenance. Here, the cover can be completely or partially removed from each nozzle of the nozzle assembly. It is not provided as a control or regulating mechanism, such as a valve. The cover is not a valve body capable of changing its position during operation; rather, it is fixed and does not change in any operating state.

[0008] This other task is addressed by an assembly toolbox for a separator, which includes at least: a nozzle carrier element having at least one nozzle assembly with at least one nozzle; an impact element disposed downstream of the nozzle assembly; and a covering device for one or more nozzles of the nozzle assembly, the covering device reducing the flow of gas through the one or more nozzles by at least 50% relative to nozzles without the covering device, wherein at least the nozzle carrier element, the impact element, and / or the liquid reservoir are configured as universal components for different nozzle assemblies or different numbers of nozzles.

[0009] The suitable design and advantages of the present invention are derived from the other claims, the description and the drawings.

[0010] This invention relates to a separator for separating liquid from a gas stream, particularly for separating oil from leaks in a crankcase ventilation system. The separator has at least one nozzle-carrying element and an impact element arranged at least partially downstream of a nozzle assembly. The nozzle-carrying element has at least one nozzle assembly with at least one nozzle. A persistent covering device is provided for one or more nozzles of the nozzle assembly, which reduces the flow of gas through the one or more nozzles by at least 50% compared to nozzles without a covering device.

[0011] Preferably, the gas flow rate is reduced by at least 80%, particularly preferably at least 95%. By determining which nozzles can be freely traversed and which nozzles can be traversed less or not at all during separator assembly, it is possible to form separators with completely different flow rates for gas flows ranging from minimum to maximum using the same type of components. Therefore, for example, separators for different power ratings of internal combustion engines can be manufactured using the same type of components.

[0012] Advantageously, the separator can be designed without a filter element, and the separated liquid can be discharged directly or collected in a reservoir. Replacement of the filter element is unnecessary, and therefore at least partial disassembly of the separator is not required. Alternatively, however, the filter element can be connected downstream of the separator.

[0013] According to a suitable design of the separator, the downstream distance between the nozzle and the covering device is at least 50% smaller than the downstream distance between the impact element and the nozzle without the covering device. The covering device can be suitably placed, for example, on the corresponding nozzle. For example, the impact element can have a covering device.

[0014] According to a suitable design of the separator, the nozzle carrier element and the impact element can have a positioning device with complementary positioning elements, which can fix the relative position, especially the rotational position, between the covering device and the nozzle assembly. For example, the positioning element can be formed by a protrusion, for example, in the form of at least one pin, particularly a radially extending pin, and the complementary positioning element can be formed by one or more receptacles for the protrusion. The pin can be constructed on the nozzle carrier element and the multiple receptacles can be constructed on the impact element, or vice versa.

[0015] According to a suitable design of the separator, the shielding device can be arranged upstream of the nozzle assembly. In particular, the upstream distance between the nozzle and the shielding device can be at least 50% smaller than the upstream distance between the impinging element and the nozzle without the shielding device. For example, a separate element, viewed in the flow direction, can be arranged upstream of the nozzle assembly, having an opening through which one or more nozzles can be approached unobstructed by the gas flow.

[0016] According to a suitable design of the separator, the nozzle carrier element and the cover device can have a positioning device with complementary positioning elements, which can be used to determine the rotational position between the cover device and the nozzle assembly. This is suitable when the nozzle carrier element and the cover device are arranged coaxially with each other.

[0017] According to a suitable design of the separator, the nozzle carrier element can have a receiving portion in which an impact element is arranged. The nozzle carrier element can have a can-shaped recess into which the impact element can be inserted. The nozzle carrier element and the impact element can be advantageously arranged concentrically.

[0018] According to a suitable design of the separator, the nozzle carrier element can be arranged in the receiving part of the liquid reservoir. Advantageously, the liquid reservoir can have a drain valve through which the liquid reservoir can be emptied from time to time.

[0019] According to a suitable design of the separator, the shielding device can be integrated into the impact element. This enables a particularly compact structure.

[0020] According to a suitable design of the separator, the covering device can be constructed as a flat ring or annular segment. Advantageously, the ring or annular segment can be arranged before the annular or annular segmented nozzle assembly.

[0021] According to a suitable design of the separator, the covering device can be constructed as an annular body with a circular or polygonal cross-section. For example, the body can be a cylinder or a cuboid. The cross-section of the body can be designed as triangular or polygonal, such as hexagonal. The corners of the covering device can serve as part of a positioning device and allow for the positioning of a complementaryly constructed nozzle carrier element, the corners of which can also be part of a positioning device.

[0022] According to a suitable design of the separator, the covering device can be configured as a covering element. As an alternative to or supplement to the coaxial arrangement, a separate covering element can be arranged upstream of the nozzle assembly.

[0023] According to a suitable design of the separator, the impact element and the nozzle bearing element can be arranged concentrically or coaxially around the axis. The corresponding arrangement can be selected based on the existing structural space and / or the requirements of the separator.

[0024] According to a suitable design of the separator, the nozzle assembly can be arranged as a circular or annular segment within the nozzle carrier element. The maximum number of nozzles can be achieved within a narrow structural space. The nozzle carrier element and impact element can be arranged perpendicular to the axis. For example, the nozzle assembly and impact element can work together with an annular region.

[0025] According to a suitable design of the separator, the nozzle assembly can be arranged in a wall section of the nozzle carrier element that is parallel to the axis. Advantageously, the nozzle carrier element and the impact element can be arranged coaxially. In particular, the nozzle carrier element and the impact element can be arranged parallel to the axis. This is especially suitable for providing a maximum number of nozzles in a small structural space.

[0026] According to another aspect of the invention, an assembly toolbox for a separator is provided, comprising at least: a nozzle carrier element having at least one nozzle assembly having at least one nozzle; an impact element disposed downstream of the nozzle assembly; and a covering device for one or more nozzles of the nozzle assembly, the covering device reducing the flow of gas through the one or more nozzles by at least 50% compared to a nozzle without the covering device; wherein, as general components, the nozzle carrier element, the impact element, and, in a particular embodiment, a liquid reservoir are provided for different nozzle assemblies and / or numbers of nozzles.

[0027] Advantageously, multiple separators with the most different gas throughputs can be manufactured using this assembly with universal components (Bausatz) by covering more or fewer nozzles during separator assembly or by reducing the spacing between one or more nozzles and the covering element by at least 50% compared to the downstream spacing between the impact element and the nozzle.

[0028] The number of nozzles without a covering device can be selected according to the required pressure differential, which is a function of the leakage flow rate. Particularly advantageously, the nozzle carrier element, impact element, and / or liquid reservoir can be configured as universal components. The nozzle carrier element can have a maximum number of nozzles. By means of a positioning device with complementary positioning elements, the appropriate arrangement of these complementary positioning elements relative to each other determines which nozzles are substantially free-flowing and which are covered, or reduces the distance between one or more nozzles and the covering element by at least 50%. Similarly, annular covering elements can be configured as universal components.

[0029] For example, up to twelve nozzles can be provided in the nozzle carrier element, and the flow area with the minimum flow through one nozzle and the maximum flow through all twelve nozzles can be fully utilized.

[0030] According to a suitable design of the assembly toolbox, complementary positioning elements can be provided on the nozzle carrier element and the impact element, which can be used to fix the relative position between the cover device and the nozzle assembly. This allows the separator to be easily constructed from common parts for different power levels.

[0031] According to a suitable design of the assembly toolbox, the covering device can coaxially surround the nozzle carrier element. Depending on the positioning of the covering device relative to the nozzle carrier element, more or fewer nozzles can be covered during the assembly of the separator. Attached Figure Description

[0032] Other advantages are illustrated in the following figures. Embodiments of the invention are shown in the figures. The figures, description, and claims contain a large number of combinations of features. Those skilled in the art can also suitably consider these features individually and conclude other meaningful combinations. These are shown here:

[0033] Figure 1 A crankcase ventilation system having a separator according to an embodiment of the present invention is shown;

[0034] Figure 2 A separator with a separating module according to an embodiment of the present invention is shown;

[0035] Figure 3 Shown from an angled perspective according to Figure 2 The separator's partition module;

[0036] Figure 4 Shown from top view according to Figure 2 The separator has the cutting plane BB shown.

[0037] Figure 5 Shown from top view according to Figure 2 The separator's dividing module has an angled cutting plane CC as shown.

[0038] Figure 6 Shown from top view according to Figure 2 The separator's dividing module has the shown cutting plane DD;

[0039] Figure 7 Shown in accordance with Figure 2 A sectional view of the partition module in plane BB;

[0040] Figure 8 Shown in accordance with Figure 2 A cross-sectional view of the dividing module in the angled plane CC;

[0041] Figure 9 Shown in accordance with Figure 2 A sectional view in the plane DD of the partition module;

[0042] Figure 10 A perspective view of an annular impact element having a covering device and a positioning element according to an embodiment of the present invention is shown.

[0043] Figure 11 A perspective view of an annular nozzle carrier element having a positioning element according to an embodiment of the present invention is shown;

[0044] Figure 12 A top view shows a separator module according to another embodiment of the invention, with the shown cut plane EE, the separator module having a cover element mounted upstream;

[0045] Figure 13 Shown in accordance with Figure 12 A cross-sectional view of the separator module within the plane EE;

[0046] Figure 14 Shown in perspective according to Figure 12 The separator's partition module;

[0047] Figure 15 Showing according to Figure 12 The view of the masking element;

[0048] Figure 16 Showing according to Figure 12A view of the nozzle carrier element;

[0049] Figure 17 A perspective view shows a separator module according to another embodiment of the invention, which has an impact element and a nozzle bearing element as wall elements;

[0050] Figure 18 The perspective view shows the results based on Figure 17 A variant of the separator's partition module, which has a cover device mounted upstream;

[0051] Figure 19 Shown from top view according to Figure 17 The separator's dividing module has the shown cutting plane FF;

[0052] Figure 20 Shown in accordance with Figure 17 A sectional view in the plane FF of the partition module;

[0053] Figure 21 Showing according to Figure 17 An exploded view of the partitioned modules. Detailed Implementation

[0054] In the accompanying drawings, identical or similar components are indicated by the same reference numerals.

[0055] Figure 1 A crankcase ventilation system 200 is illustrated, having a separator 10 according to an embodiment of the invention disposed therein for separating oil from leaks within the crankcase ventilation system 200. The separator 10 has a housing 20 having an inlet 26 and an outlet 28 for a gas flow, and an oil drain 30 for oil separated from the gas flow in the separator. The inlet 26 is disposed in a lower housing portion 24 of the housing 20, and the outlet 28 is disposed in an upper housing portion 22 of the housing 20. The two housing portions 22, 24 are connected, for example, by means of an airtight flange connection 40, or by tightening.

[0056] Figures 2 to 11 Different views of a separator 10 having a separation module 100 and its components are shown according to an embodiment of the present invention. Figure 2 A longitudinal sectional view of separator 10 is shown, and Figure 3 The separator module of separator 10 is shown in a perspective view from the top.

[0057] Figure 4 The partition module 100 is shown in top view, with the cut plane BB shown. Figure 5 The top view shows the partition module 100 with the angled cutting plane CC shown. Figure 6The impact element 110 of the separator 10 is shown in top view, with the cut plane DD shown.

[0058] As in Figure 2 As can be seen in the cross-sectional view, the separator 10 has a partition module 100 within the housing 20 to which the liquid reservoir 50 is attached. The partition module 100 is connected to a first portion 52 of the liquid reservoir 50 and extends into the receiving portion of the liquid reservoir 50 by its edge. A drain valve 60 is arranged in a second portion 54 attached thereto, through which the liquid reservoir 50 can be emptied. Liquid, such as oil from a leak, travels through the drain valve 60 from the internal space 56 of the liquid reservoir 50 and exits the separator 10 through the outlet 30.

[0059] exist Figure 2 The gas flow from housing 20 towards outlet 28 is indicated by a thick black arrow, while the separated liquid flow towards liquid reservoir 50 is indicated by a dashed arrow. The gas flow reaches outlet 28 through the nozzle assembly (not shown) of nozzle carrier element 102.

[0060] The separator 10's separating module 100 has a nozzle carrier element 102, in which nozzles are directed towards the edge 103 ( Figure 7 , 8 An impact element 110 is inserted into the enclosed receiving portion. The nozzle carrier element 102 and the impact element 110 are arranged concentrically about axis 150. The nozzle carrier element 102 is fixed between the flanges of the flange connection 40 with its edge. With respect to the direction of gas flow, the nozzle carrier element 102 is arranged upstream of the impact element 110.

[0061] As in Figure 3 As can be seen, the nozzle carrier element 102 and impact element 110 of the separator module 100 include a positioning device 130 with complementary positioning elements 132, 134. In the illustrated embodiment, pin 132 is arranged on the edge of impact element 110 and a plurality of receptacles 134 are arranged in the edge 103 of nozzle carrier element 102, only some of which are indicated by reference numerals for clarity. The receptacles 134 are configured, for example, as toothed gaps, the teeth being arranged on the free ends of edge 103.

[0062] Suitablely, a number of receiving portions 134 may be provided corresponding to the maximum number of nozzles 106, 108.

[0063] The relative position, especially the rotational position, of the impact element 110 relative to the nozzle carrier element 102 can be selected such that when the impact element 110 is placed in the receiving portion surrounded by the edge 103 during the assembly of the partition module 100, the pin 132 is introduced into one of the receiving portions 134.

[0064] It should be understood that the positions of the complementary positioning elements 132 and 134 can also be interchanged. Therefore, the impact element 110 can have a receiving portion 134, and the nozzle carrying element 102 can have a pin 132.

[0065] like Figure 6 As shown, the impact element 110 has two semicircular segments 112 and 114. One segment 112 forms a pyramidal region 113 in which, in the assembled state of the impact element 110, multiple pyramids point their tips toward the nozzle assembly 104 of the nozzle carrier element 102. The pyramidal region 113 is used to separate droplets from the gas stream, thereby removing the droplets from the gas stream and allowing them to reach the liquid reservoir 50. A covering device 120 is arranged in the other segment 114. The covering device 120 is configured as a bulge on the impact element 110.

[0066] like Figure 7 As shown, the impact element 110 is constructed substantially annularly and has an edge 111 on one side and a journal 115 on the opposite side. The journal 115 serves to guide the impact element 110 during assembly and to lock the impact element 110 onto the liquid reservoir 50. For this purpose, the liquid reservoir 50 has a mandrel (not shown in detail) that extends into the interior of the journal 115.

[0067] Impact element 110 in Figure 9 The middle section is cut by plane DD ( Figure 6 (top view and in) Figure 10 The view is shown in more detail using a perspective top view. (See the image below.) Figure 9 As can be seen, there is a height misalignment 117 between the end of the pyramidal region 113 and the covering device 120. This means that, in the assembled state, the pyramidal region 113 of the impact element 110 has a larger gap with the nozzle assembly of the nozzle carrier element 102 compared to the covering device 120.

[0068] Figure 7 As the cutting plane BB ( Figure 4 The top view shows the partition module 100 with a liquid reservoir 50. Figure 8 With the angled cutting plane CC ( Figure 5 A top view of the partition module 100, including the nozzle carrier element 102 and the impact element 110, is shown in detail. Figure 8As can be seen, the distance 116 between the pyramidal region 113 and the nozzle 106 is greater than the distance 118 between the covering device 120 and the nozzle 108 of the nozzle assembly 104 of the nozzle carrier element 102. Preferably, the distance 118 is up to 50% of the distance 116, more preferably up to 10%, and particularly preferably up to 5%. The pyramidal region 113 of the impact element 110 is arranged downstream opposite to the nozzle 106. Figure 7 , Figure 8 The covering device 120 is arranged downstream of the nozzle 108. The nozzle 106 is virtually free to flow through, while the gas flow through the covered nozzle 108 is strongly restricted or completely blocked. Preferably, the gas flow through the nozzle 108 is reduced by at least 50% compared to the nozzle 106 without the covering device 120, preferably by at least 90%, and particularly preferably by at least 95%.

[0069] Figure 11 The annular nozzle carrier element 102 is shown in detail in perspective, featuring a positioning element 132 with a positioning device 130. An edge 103 is partially toothed at its free end, the gaps between which form a receiving portion 134 for a complementary pin 132 on the impact element 110. Edge 103 is arranged on one side of the nozzle carrier element 102, while a smaller diameter edge 105 is arranged on the other side, with the nozzle carrier element 102 contacting, for example, with the receiving portion of the liquid reservoir 50 via this edge for insertion.

[0070] The nozzle assembly 104 is formed by a semi-circular arrangement of nozzles 106 and 108. For clarity, only a few of them are indicated by reference numerals. Based on the positioning of pin 132 in the receiving portion 134, nozzle 106 is arranged relative to the pyramidal region 113 and is substantially free to be flowed through, while the other nozzles 108 are arranged relative to the covering device 120 and are substantially covered downstream by the covering device.

[0071] The partition module 100 can be fixedly connected to the upper portion 22 of the housing, for example, by bonding or welding, or constructed as an injection-molded part. Alternatively, a form-locking connection is provided. The partition module 100 and the upper portion 22 of the housing are advantageously arranged to be sealingly connected to each other.

[0072] The nozzle carrier element 102 and the impact element 110 can be suitably fixed to each other, for example, by bonding or welding.

[0073] Figures 12 to 16 A separating module 100 of a separator 10 according to another embodiment of the present invention is shown.

[0074] The structures of the nozzle carrier element 102 and the impact element 110 are largely the same as in the previous embodiments. Therefore, to avoid unnecessary repetition, see [link to previous embodiment]. For details, see [link to previous embodiment]. Figure 2-11 However, unlike the previous embodiments, the impact element 110 does not have a covering device and a positioning device 130.

[0075] Figure 12 The dividing module 100 is shown in top view with the shown section plane EE. The dividing module has a nozzle assembly 104 mounted on an annular cover device 122 upstream of the nozzle carrier element 102. Figure 13 A cross-sectional view is shown in the plane EE of the partition module 100 and the upper portion 52 of the liquid reservoir 50. Figure 14 The upper portion 52 of the separator module 100 and the liquid reservoir 50 is shown in perspective view. Figure 15 A view of the covering device 122 is shown, and Figure 16 A view of the nozzle carrier element 102 is shown.

[0076] As in Figure 13 , 14 As can be seen in the sectional and perspective views, an annular covering device 122 is arranged upstream of the nozzle assembly 104. The covering device 122 is constructed as a ring and is arranged in an annular recess 101 on the underside of the nozzle carrier element 102. The covering device 122 has a region on its inner circumference with teeth serving as positioning devices 130, wherein the gaps between the teeth form a receiving portion serving as a positioning element 134 for accommodating complementary positioning elements 132, such as pins.

[0077] Suitablely, a number of receiving portions 134 may be provided corresponding to the maximum number of nozzles 106, 108.

[0078] The annular cover device 122 can be easily and loosely placed between the nozzle carrier element 102 and the upper part 52 of the liquid reservoir 50, and can be pressed against the lower side of the nozzle carrier element 102 by the support member 58.

[0079] The gas flow is achieved through the obstruction device 122 via the arc-shaped opening 123, which releases the nozzle 106 of the nozzle assembly 104. This is in Figure 15 As can be seen, the covering device covers the nozzle assembly 104 in other areas.

[0080] If, in a particular implementation, the covering device 122 is not required for the technical function, then such covering device can be omitted when assembling the device.

[0081] exist Figure 16Complementary positioning elements 132, in the form of pins, are visible and are arranged on the journal 105 of the nozzle carrier element 102. An annular covering device 122 moves on the journal 105 and the positioning elements 132 such that a desired number of nozzles 106 are released and other nozzles 108 are covered if necessary, by selecting one of the complementary positioning elements 134 on the inner circumference of the covering device 122.

[0082] In this embodiment, the positioning elements 132 and 134 of the positioning device 130 can also be arranged interchangeably.

[0083] The partition module 100 can be fixedly connected to the upper portion 22 of the housing, for example, by bonding or welding, or constructed as an injection-molded part. Alternatively, a form-locking connection is provided. The partition module 100 and the upper portion 22 of the housing are advantageously arranged to be sealingly connected to each other.

[0084] The nozzle carrier element 102 can be connected to other housing parts by injection molding or shape locking. Alternatively, the nozzle carrier element 102 can be welded to another component or otherwise fixedly connected.

[0085] The nozzle carrier element 102 and the impact element 10 can be appropriately fixedly connected to each other, for example, by bonding or welding.

[0086] Figures 17 to 21 A separating module 100 of a separator 10 according to another embodiment of the present invention is shown. Figure 17 The partition module 100 is shown in perspective, and Figure 18 The perspective view shows the results based on Figure 17 A variation of the separator module 100. Figure 19 The partition module 100 with the shown cutting plane FF is shown in top view, and Figure 20 A cross-sectional view in plane FF of the partition module 100 is shown. Figure 21 Showing according to Figure 17 An exploded view of the partition module 100.

[0087] In this design, the impact element 110 and the nozzle carrier element 102 are arranged coaxially around axis 150. The nozzle carrier element 102 is constructed as a polygonal hexagonal tube and has a nozzle assembly 104 with a different number of nozzles 106, 108 on multiple sides, for example, on each side. Except for side 109, a covering device 124 surrounds the other sides of the nozzle carrier element 102, thereby allowing the nozzles 106 on side 109 to pass through for gas flow. For clarity, only some of these nozzles are indicated by reference numerals in the accompanying drawings.

[0088] It should be understood that the nozzle carrier element 102 and the covering device 124 can also be interchanged, and the covering device 124 can be arranged downstream of the nozzle carrier element 102.

[0089] The positioning device 130 is formed by the corners of the nozzle carrier element 102 and the covering device 124. The rotational position of the nozzle carrier element 102 relative to the covering device 124 determines which nozzle assembly 104 is flow-through and which nozzle assembly is covered.

[0090] In the illustrated design, the cover device 124 can be integrally constructed with the upper portion 52 of the liquid reservoir 50. The nozzle carrier element 102 can be easily inserted into the cover device 124. Alternatively, instead of the cover device 124, the nozzle carrier element 102 can be fixedly connected to the liquid reservoir 50.

[0091] The impact element 110 is arranged as an impact plate downstream of and parallel to the side 109. The impact element 110 is constructed as an angled element and is fastened to the intermediate journal of the upper portion 52 of the liquid reservoir 50 by means of a support plate 119.

[0092] Figure 18 The design scheme specifies that, additionally on the side 109, a baffle-shaped covering device 126 can be arranged upstream in front of the nozzle assembly 104, and additionally can cover a portion of the nozzle assembly 104 in the otherwise penetrable wall element 109.

[0093] Alternatively, one or more covering devices 126 may replace covering device 124.

[0094] Different designs of the separator module 100 according to the invention allow for the advantageous provision of an assembly toolbox for the separator 10, which has universal components for different flow paths of gas in the crankcase ventilation system 200.

[0095] Preferably, the assembly toolbox includes a universal component in the form of a nozzle carrier element 102, an impact element 110, and a liquid reservoir 50. The nozzle carrier element has at least one nozzle assembly 104 with at least one nozzle 106, 108. The assembly toolbox also includes a covering device 120, 122, 124, 126 for the impact element 110 disposed downstream of the nozzle assembly 104 and for one or more nozzles 108 of the nozzle assembly 104. The covering device reduces the flow of gas through one or more nozzles 108 by at least 50% relative to nozzles 106 without covering devices 120, 122, 124, 126. Furthermore, the annular covering element 122 can be configured as a universal component.

[0096] The number of nozzles 106 without covering devices 120, 122, 124, 126 can be selected according to the necessary pressure difference, which is a function of the leakage flow rate.

[0097] Particularly advantageously, the nozzle carrier element 102, the impact element 110, and the liquid reservoir 50 can be configured as universal components. The nozzle carrier element 102 can have a maximum number of nozzles 106, 108. The positioning device 130, with its complementary positioning elements 132, 134, and through the appropriate arrangement of these complementary positioning elements 132, 134, determines which nozzles 106 can be substantially freely traversed and which nozzles 108 are covered. Similarly, the annular covering element 122 can be configured as a universal component.

[0098] For example, up to twelve nozzles can be provided in the nozzle assembly 104, and the flow area with minimum flow through one nozzle 106 and maximum flow through all twelve nozzles 106 can be fully utilized.

Claims

1. A separator (10) for separating liquid from a gas stream, the separator having at least one nozzle carrier element (102), the nozzle carrier element having at least one nozzle assembly (104) with at least one nozzle (106, 108), and the separator having an impact element (110) arranged at least partially downstream of the nozzle assembly (104), characterized in that, One or more nozzles (108) of the nozzle assembly (104) are provided with a persistent covering device (120, 122, 124, 126) that reduces the flow of gas through the one or more nozzles (108) by at least 50% relative to the nozzle (106) without the covering device (120, 122, 124, 126). The covering device is not a valve body that can change its position during operation, but is fixed and does not change in all operating states. The nozzle carrying element (102) and the impact element (110) have a positioning device (130) with complementary positioning elements (132, 134) that can fix the rotational position between the covering device (120, 122, 124) and the nozzle assembly (104).

2. The separator according to claim 1, characterized in that, The downstream distance between the nozzle (108) and the cover device (120) with respect to the nozzle (106, 108) is at least 50% smaller than the downstream distance between the impact element (110) and the nozzle (106) without the cover device (120).

3. A separator (10) for separating liquid from a gas stream, the separator having at least one nozzle carrier element (102), the nozzle carrier element having at least one nozzle assembly (104) with at least one nozzle (106, 108), and the separator having an impact element (110) arranged at least partially downstream of the nozzle assembly (104), characterized in that, One or more nozzles (108) of the nozzle assembly (104) are provided with persistent covering devices (120, 122, 124, 126) that reduce the flow of gas through the one or more nozzles (108) by at least 50% relative to the nozzle (106) without covering devices (120, 122, 124, 126). The covering devices are not valve bodies that can change their position during operation, but are fixed and do not change in all operating states. The nozzle carrying element (102) and the covering devices (120, 122) have positioning devices (130) with complementary positioning elements (132, 134) that can fix the rotational position between the covering devices (120, 122) and the nozzle assembly (104).

4. The separator according to claim 3, characterized in that, The covering devices (122, 124) are arranged upstream of the nozzle assembly (104).

5. The separator according to claim 4, characterized in that, The upstream distance between the nozzle (108) and the covering device (122, 124) with respect to the nozzle (106, 108) is at least 50% smaller than the upstream distance between the impact element (110) and the nozzle (106) without the covering device (122, 124).

6. The separator according to claim 1 or 3, characterized in that, The nozzle carrier element (102) has a receiving portion, in which the impact element (110) is arranged.

7. The separator according to claim 1 or 3, characterized in that, The nozzle carrier element (102) is arranged in the receiving part of the liquid reservoir (50).

8. The separator according to claim 1 or 3, characterized in that, The covering device (120) is integrated into the impact element (110).

9. The separator according to claim 1 or 3, characterized in that, The covering device (122) is constructed as a flat ring.

10. The separator according to claim 1 or 3, characterized in that, The covering device (124) is constructed as an annular body with a circular or polygonal cross-section.

11. The separator according to claim 1 or 3, characterized in that, The covering device (126) is constructed as a baffle.

12. The separator according to claim 1 or 3, characterized in that, The impact element (110) and the nozzle carrier element (102) are arranged concentrically or coaxially around the axis (150).

13. The separator according to claim 1 or 3, characterized in that, The nozzle assembly (104) is arranged as a circular or annular segment in the nozzle carrier element (102).

14. The separator according to claim 13, characterized in that, The nozzle support element (102) and the impact element (110) are arranged perpendicular to the axis (150).

15. The separator according to claim 1 or 3, characterized in that, The nozzle assembly (104) is arranged in a wall section (109) of the nozzle carrier element (102) constructed parallel to the axis (150).

16. The separator according to claim 15, characterized in that, The nozzle support element (102) and the impact element (110) are arranged parallel to the axis (150).

17. The separator according to claim 1 or 3, characterized in that, The separator (10) is configured to separate oil from leaks in the crankcase ventilation system (200).

18. An assembly toolbox for the separator (10) according to any one of the preceding claims, comprising at least: A nozzle carrier element (102) having at least one nozzle assembly (104) having at least one nozzle (106, 108). For use in an impact element (110) disposed downstream of the nozzle assembly (104). A covering device (120, 122, 124, 126) for one or more nozzles (108) of the nozzle assembly (104), the covering device reducing the flow of gas through one or more nozzles (108) by at least 50% relative to a nozzle (106) without a covering device (120, 122, 124, 126); And a liquid reservoir (50) for separating liquid from a gas stream, wherein at least the nozzle carrier element (102), the impact element (110) and the liquid reservoir (50) are configured as universal components for different nozzle assemblies (104) and / or different numbers of nozzles (106, 108).

19. The assembly toolbox according to claim 18, comprising complementary positioning elements (132, 134) on the nozzle carrier element (102) and the impact element (110), which can be fixed in relative position between the covering device (120, 122, 124, 126) and the nozzle assembly (104).

20. The assembly toolbox according to claim 18 or 19, wherein, The covering device (124) coaxially surrounds the nozzle carrier element (102).

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