BR112012018640B1 - ASSEMBLIES OF WATER SEPARATOR OF INLET AIR FLOW AND METHOD OF SEPARATING WATER FROM AN INLET AIR FLOW - Google Patents

Abstract

assembly of inlet airflow water separator and method of separating water from an inlet airflow. An inlet air flow water separator assembly is described for use in separating liquid water from an inlet air flow into an air cleaner arrangement. the air inlet water separator assembly generally includes: an inlet assembly, a drain assembly, and a water drain arrangement, as described. the arrangement can be used to separate incoming water from the air stream for an air cleaner, for example, for an engine system used for a vehicle or other equipment.

Description

[001] This application is being filed on January 26, 2011, as an international PCT patent application in the name of Donaldson Company, Inc., a US national commercial company, applicant for the designation of all countries except the USA , and Michael Baseotto, a Belgian citizen, applicant for the US designation only, and claims priority to US provisional patent application serial number 61 / 299,410, filed on January 29, 2010.

Field of revelation

[002] The present disclosure relates to techniques and equipment for separating water from air flow in an air cleaning medium for the engine system. The typical application would be to separate water from air for a combustion air intake system in a vehicle such as a truck or other equipment.

Background

[003] Vehicles and other equipment that use internal combustion engines, such as diesel engines, are generally equipped with an air cleaner assembly. The air cleaner assembly filters air to be directed to the combustion air intake for the engine. Typically, the air cleaner assembly includes an in-service filter cartridge positioned in it, which is periodically removed and repaired or replaced. Examples of such air cleaning assemblies include those described in the following publications, incorporated herein by reference: WO 2009/014982, published January 29, 2009; WO 2009/014986, published on January 29, 2009; WO 2009/014988; published on January 29, 2009; and US 5,547,480, issued August 20, 1996.

[004] The intake air in the air cleaner assembly sometimes includes water in it, for example, rain water or street water that is splashed in the air. It is desirable to separate as much of the water as reasonably possible from the intake air flow to the air cleaning medium. In this way, damage to the engine, turbocharger and / or other components is minimized.

[005] A variety of techniques have been developed to separate water from intake air. An example arrangement is described in the following publication, incorporated here for reference: WO 2008/0157699, published on December 24, 2008. In that arrangement, inlet louver configurations are used to facilitate water separation.

[006] Improvements were made to water separators used for intake air for air cleaning means, for vehicles or other equipment. In general, improvements are sought in characteristics that allow greater efficiency in water separation, less problematic inlet airflow restriction and / or ease of assembly and use.

summary

[007] According to the present disclosure, an inlet airflow water separator assembly for use in separating liquid water from an inlet air flow for an air cleaning arrangement is provided. The air cleaning arrangement is typically configured for use in incoming air filtration, for an air intake from an internal combustion engine, for example, as used in a vehicle or other equipment.

[008] In general terms, the water separator assembly comprises an inlet assembly comprising (i.e., including) an inlet housing having an enclosure airflow inlet and an enclosure airflow outlet. The inlet enclosure defines an enclosure interior.

[009] A reed assembly, including an inner reed arrangement, is positioned inside the enclosure. In an example shown, the interior vane arrangement includes: a vane interior defining a vane interior airflow duct; a substantially closed side end surface to flow therethrough, oriented towards the enclosure air flow inlet; an inner vane arrangement airflow inlet positioned to receive airflow from the housing interior; and an airflow outlet configured to direct airflow from the vane interior through the enclosure airflow outlet. The assembly further includes a water drain arrangement including a water drain outlet positioned to drain water from a location inside the enclosure and outside the interior reed arrangement.

[010] Also according to one aspect of the present disclosure, an assembly in which the inner reed arrangement has an external flow surface with a water collection channel arrangement therein, is described. The water collection channel arrangement typically comprises at least one notch or channel on at least one side of the inner reed assembly. Some sample water channel arrangements are represented and described.

[011] The inner reed arrangement may include the features previously characterized, and may include advantageous aspects described in detail here. Specific, preferred, advantageous aspects in general are described.

[012] In addition, assemblies and / or systems involving the assembly of inlet airflow water separator in combination with other aspects of a system, for advantageous air cleaning operation and / or engine airflow operation , are described.

[013] Methods of assembly and use are also described.

[014] There is no specific requirement that an assembly, system, component, aspect or technique follow all the details featured here, to obtain any benefit in accordance with the present disclosure. Brief description of the drawings Figure 1 is a schematic side elevation view of an assembly comprising a combination of an air cleaner assembly and an inlet airflow water separator assembly in accordance with the present disclosure; Figure 2 is a schematic side view in perspective of an inlet airflow water separator assembly usable with an air cleaner assembly according to the present disclosure. Figure 3 is a second side perspective view, schematic of the inlet airflow water separator assembly of Figure 2. Figure 4 is a schematic perspective cross-sectional view of the airflow water separator assembly. inlet of figures 2 and 3. Figure 5 is a schematic side cross-sectional view of the inlet airflow separator assembly of figures 2-4. Figure 6 is a schematic detailed perspective view of the inlet airflow water separator assembly of figures 2-5. Figure 7 is a schematic side elevation view of a reed assembly of the inlet airflow water separator assembly of figures 2-6. Figure 8 is an end elevation schematic view of the reed assembly of Figure 7. Figure 9 is a schematic top plan view of the reed assembly of Figures 7 and 8. Figure 10 is a schematic side cross-sectional view. of the vane assembly of figure 7. Figure 11 is a schematic side elevation view of an inlet housing of the airflow water separator assembly of figures 26. Figure 12 is an extreme elevation view closed, schematic view of the entrance housing of figure 11. Figure 13 is a schematic top plan view of the entrance housing of figures 11 and 12. Figure 14 is a schematic elevation view of the entrance shutter arrangement of the air separator assembly. airflow water from figures 2-6. Figure 15 is a schematic side elevation view of the entrance shutter arrangement of figure 14. Figure 16 is a schematic top plan view of the entrance shutter arrangement of figures 14 and 15. Figure 17 is an extreme elevation view. schematic inlet view of an airflow water separator assembly sieve in figures 2-6. Figure 18 is a schematic side elevation view of the input screen of Figure 17. Figure 19 is a schematic top plan view of the input screen of Figure 17. Figure 20 is a schematic plan view of a gasket component of the assembly. of figures 2-6. Figure 21 is a schematic drawing of a combination of engine and airflow inlet, including: an engine; an air cleaner assembly, including an in-service filter cartridge in it, and an inlet airflow water separator assembly or arrangement in accordance with the present disclosure. Figure 22 is a schematic view of a vehicle having: a typical forward direction; an engine; an air cleaner assembly having a filter cartridge in service condition thereon; and an inlet airflow water separator or arrangement arrangement in accordance with the present disclosure.

Detailed description I. General usage environment

[015] Reference numeral 1, figure 1, generally represents an air cleaner assembly / airflow water separator assembly in accordance with the present disclosure. Referring to figure 1, are shown: an air cleaner assembly 3; an air cleaner inlet duct 4; and an airflow water separator arrangement or assembly 5.

[016] The air cleaning medium 3 can be of any variety of types. Although alternatives are possible, some example air cleaner assemblies that can be used for the air cleaner assembly 3 are represented and described, for example, in WO 2009/014982; WO 2009/014986; WO2009 / 014988; and US 5,547,480, incorporated herein by reference. In general, the air cleaner assembly 3 includes an access cover 7 removably attached to a housing 8. A housing filter for service conditions 8 is included in housing 8, not shown in figure 1. The air filter cartridge Air in service conditions is configured to be charged with contaminant, such as dust, during use. Periodically, the service cap 7 is removed, and the cartridge is removed from the housing 8. Typically, the cartridge in service condition is replaced with a new air filter cartridge, although it can be renewed and reinstalled. In some cases, the air cleaning means 3 may include a safety or secondary filter cartridge in it, which may also be in service condition.

[017] The air cleaner inlet duct 4 provides inlet air direction in the air cleaning medium 3. The inlet duct 4 can comprise a variety of shapes, suitable to achieve the desired air direction.

[018] The inlet airflow water separator assembly 5 is shown positioned to direct the inlet air into the inlet duct 4. Assembly 1 is represented with a bellows duct 10, providing airflow direction and communication between the inlet airflow water separator assembly 5 and the air cleaner inlet duct 4.

[019] Mount 1 can be mounted on a variety of types of equipment. Typically, assembly 1 would be positioned on a vehicle, such as a truck. Referring to figure 1, a normal forward truck direction for a typical application is indicated by the arrow 11. Below, in association with figures 21 and 22, further discussion is provided of typical environments for using a flow water separator assembly air 5 according to the present disclosure.

[020] Example assemblies usable for the assembly of water separator 5 and bellows duct 10 are shown in figures 2-6, with selected components represented in figures 7-20. These are discussed in the following section. 11. An example water separator assembly usable as a water separator assembly 5 1. General

[021] Attention is now directed to figure 2, in which a water separator assembly of inlet air flow 20 is shown in schematic view, with a bellows duct 21 operatively positioned thereon. The water separator assembly for inlet air flow 20 and bellows flue 21 can be used, for example, in the environment of figure 1, as the assembly 5 and bellows flue 10.

[022] With reference to figure 2, a schematic side perspective view is shown. In figure 2, the inlet airflow water separator assembly 20 is oriented as would be typical for use, that is, upper portions of figure 2 would generally be directed upwards and flow inwards (and in the example shown out of ) bellows duct 21 would, as shown in arrow 21d, generally be directed downwards. Alternative configurations are possible with applications of principles selected in accordance with the present disclosure; however, the orientation of figure 2 is typical.

[023] Still with reference to figure 2, the water separator assembly 20 includes: an air inlet assembly 22 comprising an inlet housing 23; the inlet enclosure 23 having (defining) an enclosure airflow inlet 25 and an enclosure airflow outlet 26. Inlet enclosure 23 has a top 23t and opposing first and second sides 27, 28. The enclosure 23 further includes a closed end 23e, opposite entrance 25 and extending between sides 27, 28. In use, side 27 is typically oriented in the direction of movement of a vehicle (to which mount 20 is mounted in use), i.e. it is, towards a typical forward direction. A typical housing 23, as shown, has a longer dimension (geometrical axis) vertically directed in use.

[024] Still referring to figure 2, the air flow inlet water separator assembly 20 optionally includes a plurality of supports 29. In the example shown, each support 29 includes an opening 29x in it. The supports 29 provide locations whereby the assembly 20 can be fixed by fasteners, for example, screws, on a frame part or other structural support piece, after the assembly 20 on the vehicle or other equipment with which it is used. A typical mounting approach would be with fasteners like screws extending through the 29x openings, although alternative mounting and fixing arrangements can be used. In the example shown, selected supports 23s from supports 23 are in housing 23.

[025] Housing airflow inlet 25 defines an airflow opening through which airflow enters the airflow water separator assembly 20. The airflow entering the water separator assembly 20 through the inlet air flow of housing 25 is, in due course, directed as inlet air into the air cleaner 3, figure 1, for use. In this way, the enclosure air flow inlet 25 defines an air flow inlet 30 for assembly 20. In a typical example assembly, like the one illustrated in figure 2, the enclosure air flow inlet 25 is oriented with a longer dimension vertically in use, and a shorter dimension (width) usually positioned horizontally. Alternatives are possible.

[026] The specific inlet airflow water separator assembly 20 shown includes (optionally and preferably) an inlet shutter arrangement 32 positioned in housing 23, that is, in the housing inlet 25 in extension through the inlet. assembly 30. The inlet louver arrangement 32 includes a plurality of spaced louvers 33 oriented in extension through inlet 30 (and housing inlet 25). The shutters 33 individually include an outer or upstream (ie forward or front) edge 34. The shutters 33 are optionally and preferably positioned so that the outer or upstream (forward or front) edges 34 extend both horizontally through part or all of the entrance 30 in a direction between sides 27, 28; and tilted upwards (that is, towards the top 23t and away from the bellows 21) in extension from a direction in the direction of side 27 to a direction in the direction of side 28. Performance aspects associated with that direction of extension of shutters 33 are discussed below with respect to figures 21 and 22.

[027] In general, each shutter 33 includes an upper, outer surface 33u and a lower, inner opposite surface, 33l. The upper surfaces 33u are generally directed upwards and, in the example shown, outwards. The lower surfaces 33 are generally directed downward and in the example shown, inward. In this way, louvers 33 are positioned so that the upper surfaces 33u are generally directed away from an interior 23i of housing 23; and so that the lower surfaces 33l are directed inwardly of the housing 23.

[028] In operation, air passes through the shutter arrangement 32 at the entrance 30, and is directed to a water separator assembly interior 20i 20, that is, inside the housing 23. As this occurs, a portion of Airborne water can collect on the louvers 33 and drain externally under the influence of gravity, away from entering the water separator assembly 20. This is, in operation, generally facilitated by the direction of individual louvers 33 extends, in relation to one direction forward motion of a vehicle on which the mount 20 is used. In general terms, the inlet shutter arrangement 32 can be characterized here as an "inlet shutter arrangement to separate water", since it provides some water separation. However, a significant portion of the water separation by the water separator assembly 20, is driven by structure inside the housing 25, as described below.

[029] The inlet airflow water separator assembly 20 (optionally and preferably) includes an inlet sieve 40 therein. The inlet sieve 40 is positioned to extend through the inlet 30 and the inlet airflow of housing 25, such that the air entering the interior 20i of the water separator 20 (and the interior 33i of the housing 23) must pass through through the inlet sieve 40. The inlet sieve 40, discussed in more detail below with reference to figures 17-19, generally comprises a structure or package having air flow openings through it, through which the air flow is targeted.

[030] In general, the inlet sieve 40 inhibits large matter, such as cigarettes, leaves, insects and floating debris, from entering the interior 20i of the water separator 20 (and thus the interior 23i of the housing 23). The inlet sieve 40 is positioned inwardly from, that is, downstream of, a shutter arrangement 32.

[031] Together, the inlet housing 23, shutter arrangement 32 and inlet sieve 40 can be characterized here as the airflow inlet assembly 22 for the water separator assembly 20.

[032] In figure 3, a perspective view of assembly 20 is shown, similar to figure 2, but towards side 27. Selected features previously characterized are numbered analogously. It is again noted that in the example shown, side 27 is configured to be positioned against an equipment frame arrangement, in which the assembly 20 is fixed in use. A typical use would be with side 27 mounted against the rear of a vehicle cab, although alternatives are possible. To facilitate assembly, in the example shown side 27 is relatively flat.

[033] Attention is now directed to figure 4. Figure 4 is a cross-sectional, perspective view, schematic of mounting of water separator 20 and bole duct 21, shown oriented analogously to figure 2. In figure 4, the inlet assembly 22 comprising: inlet housing 23, shutter arrangement 32 and inlet sieve 40 can be seen. Positioned inside the inlet assembly 22, an inlet volume or space 48 is provided positioned within (i.e., between) side walls 27 and 28 and inside 23i of housing 23. The inlet space or volume 48 is defined outside the assembly reed 50, discussed below. The inlet space or volume 48 includes, at a bottom 48x of it, a water drain arrangement 52. The water drain arrangement 52 includes water drain outlet 52a through the bottom 48x, in the example shown having a evacuation valve assembly 53 mounted on it. The evacuation valve assembly 53 can have a variety of configurations known for water evacuation assemblies in the prior art. The specific water evacuation valve 53 shown comprises a duckbill valve 53v having a slit 53x in a lower lower portion thereof. In general, water in the interior space or volume 48 will drain to the bottom 48x under the influence of gravity and then through the drain outlet 52a, to the valve element 53, through which it can be ejected from the assembly 20. In the assembly shown, the valve element 53 is mounted on a drain pipe designed downwards, bottom 52t.

[034] Attention is now turned to figure 5, a schematic cross-sectional view generally analogous to figure 4, in which components previously described can be seen. Again, drain 52 and evacuation valve 53 are visible.

[035] Attention is now directed to figure 6, a detailed, schematic perspective view of assembly 20 and bellows duct 21. In figure 6, inlet assembly 22 can be seen comprising: inlet housing 23; shutter arrangement 32; and inlet sieve 40.

[036] As explained above, housing 23 defines an open inlet 25, for airflow into housing 23i. Over (through) the entrance 25, the shutter arrangement 32 and sieve 40 are positioned. With reference to figure 6, a gasket 60 is shown. Gasket 60 provides a weatherproof seal and vibration damping between adjacent components, that is, between sieve 40 and housing 23. In figure 6 selected fasteners 61 are visible.

[037] Still referring to figure 6, the housing 23 also includes a lower opening 26, opposite the top 23t. The lower opening 26 is dimensioned, positioned and configured to receive projecting the reed assembly 50 when the water separator assembly 20 is assembled.

[038] In general, it is observed that the lower opening 26, when adapted over internal structures described below, surrounds and defines an airflow outlet from the housing 23. In general terms, the housing 23 can be characterized as having inlet 25 and outlet 26 oriented laterally in relation to each other. The term "laterally" when used in this way is widely intended to indicate that the direction of air flow through inlet 25 and outlet 26 is generally not in the same direction. Typically, in general, air flow through outlet 26 will be approximately 90 ° to the inlet. In addition, typically, the air flow through outlet 26 will be directed downwards.

[039] With reference to figure 6, the reed assembly 50 is positioned on the lower duct element 62. The duct element 62 surrounds and defines a duct having an open interior for the passage of air flow through it. Duct element 62 includes an airflow outlet end 63. In assembly, the bellows duct 21 is mounted on the airflow outlet end 61 to receive air to be directed from duct element 62 for the inlet duct 4, figure 1. In this way, the duct element 62, through the reed assembly 50, receives air flow that passes through the outlet end 26 of the housing 23 and directs the air flow into the bellows flue 21.

[040] It is observed, with reference to figure 6, that the lower duct element 62 includes supports selected 29z from the supports 29 in it.

[041] Still referring to figure 6, the reed assembly 50 includes an inner reed arrangement 65 having a front (or side) end 65e with a surface 65s generally directed towards the inlet airflow of casing 25, when the water separator assembly 20 is assembled. In addition, the inner vane arrangement 65 includes an interior arrangement air flow inlet 65z.

[042] In general, the inner vane arrangement 65 defines an interior 65i, configured to receive airflow in it, from the interior 23i of the housing 23. In addition, the inner vane arrangement 65 is configured to direct air inside 23i to exit the end 63 of the duct arrangement 62. The specific inner vane arrangement 65 shown is positioned with the inner vane arrangement air flow inlet, 65z, generally directed in a direction set from (i.e., away from) side end 65e and housing inlet 25. Typically, the part closest to inlet 65z to inlet 25 is spaced at least 40 mm thereafter, typically at least 60 mm and often further apart.

[043] In general terms, the inner reed arrangement 65 shown includes first and second opposite sides or side sections 65x, 65y, which generally extend in a direction away from the front (or side) 65e and also a direction away from the housing entry 25.

[044] Typically, surface 65s, i.e., end 65e, is substantially closed for airflow through it. By the term “substantially closed” in this and a similar context, it means that the characteristic or referenced surface is completely imperforated, or if it includes any opening in it, the opening is small enough so that little, if any, air passes through it occurs in use. In a typical preferred application, the end 65e, i.e. the surface 65s, is completely closed for air to pass through it. Furthermore, typically the surface 65s, i.e. the end 65e, is curved, for example, around a horizontal radius in the range of 20-60 mm, inclusive, although alternatives are possible. The radius of curvature of the surface 65s (that is, of the end 65e) can taper downward as it extends upward.

[045] Opposite sides 65x, 65y are so typically closed with respect to the entry of air through them into the interior 65i of the vane 65 (through which air can pass into the lower duct arrangement 62). Typically, surfaces 65x, 65y are fully closed for such a passage.

[046] With reference to figure 6, for the specific example arrangement shown, the airflow inlet 65x of the inner reed arrangement 65 is defined by: rear edges 65o of side sections 65x, 65y and rear edge 65tr of the upper end 65t. In addition, the lower end 65zl of the inlet 65z is defined by a base portion 65b of the inner reed arrangement 65. The top 65t is typically substantially closed, usually fully closed.

[047] Typically, the top 65e has a perimeter that defines an area of at least 5 cm square, typically at least 10 cm square and often in the range of 10 to 50 square cm, although alternatives are possible.

[048] In general terms, the air flow inlet 65z can be characterized as defined directed upward and backward away from both 65e and the housing inlet 25. There is no specific requirement that a 65p perimeter of 65y define a generally flat definition. However, when the 65p perimeter is approximately flat, it can be said that its flat extent is typically at an angle X, figure 7, in relation to the horizontal of at least 45 °, typically no more than 85 °, and often understood in range from 60 ° to 80 °, inclusive.

[049] Still with reference to figure 6, it is observed that the perimeter 65p around the entrance 65z is defined in part by a collar 65c, which protrudes radially outwards, that is, away from the sides 65x, 65y, base 65b and 65t top in extension around the 65z entrance. Alternatively said, collar 65c projects in a direction generally perpendicular to the air flow from (and through) inlet 25. Necklace 65c inhibits water that collects on the 65x, 65y, top 65t sides or elsewhere on the reed 65 , to be pulled by air flow into the 65z inlet. Thus, collar 65c is typically closed and continuous. The collar will typically extend outwardly relative to adjacent reed arrangement portions of at least 2 mm, often more.

[050] Referring again to figure 6, side 65x includes notches or artifact channels 70 in it. The channels or notches 70 are artifacts, from the formation of preferred interior flow drivers discussed below. It can be understood that there may be analogous channels or notches, typically on the opposite side 65y. It is also observed that the channels or notches 70 operate as water collection channels, for a water collection channel arrangement discussed below.

[051] Still with reference to figure 6, the 65x side includes an optional spacer 71 in it, to provide spacing against a portion of the housing 23, during assembly.

[052] From an examination of figures 2-6, the general operation of assembling the inlet airflow water separator 20 will be understood. In operation, airflow will enter the entrance of housing 25 and pass through the shutter arrangement 32. A portion of any liquid water charged in the air will be collected at the shutters 33 of the shutter arrangement 32, and drain out from the assembly 20 The air will generally be directed into and through the inlet sieve 40. Having passed through the inlet sieve 40, air and any charged water will enter the housing 23i. The air will be directed by the inner vane arrangement 65 around the sides 65x, 65y (and to some extent over the top 65t), over the collar 65c and into the entrance 65z at the edge 65p. The water it collects on an outer surface of the inner reed arrangement 65 and / or on the inner surface 25x of housing 25 can drain down into the water flow through arrangement 75, figure 4. This water can then drain into the drain arrangement. water 52, through outlet 52a and valve 53, and then out from the separator assembly 20.

[053] In general terms, the flow of water through the arrangement 75, figure 4, is a chute that at least partially surrounds the reed 65 adjacent to a base 65b thereof, between the reed 65 and the housing 23. A trough 75, in the example shown, completely surrounds the reed 65, in communication of water flow with the water drain arrangement 52.

[054] Referring again to figure 6, on the edge 65p, and after passing into the 65i inlet, the air will pass into the 65i interior of the inner vane arrangement 65. From there, the air is directed to the duct section 60 .

[055] In this way, some general observations on airflow through the assembly of airflow water separator 20 can be observed. First, the air flow into the inlet of the housing 23 is generally directed out of the housing 23 in a lateral direction relative to the inlet flow, and typically approximately in a 90 ° direction to the inlet 25 of the housing 23. In addition, the air flow inward 65i of the inlet vane arrangement 65 is generally in a direction opposite to the airflow inlet into the enclosure inlet 25. Therefore, it is not meant that the air required -it makes a complete 180 ° turn, but instead the face of the general direction input 65z is 180 ° opposite the input 25. The air, of course, can make a turn less than 180 ° in relation to the direction of entrance, given the example arrangement where the perimeter 65p of the entrance 65z is tilted upwards.

[056] Referring to figure 4, the inner vane arrangement 65 includes on the inside 65i a guide vane arrangement including a plurality of airflow guide vanes 80 configured to help direct airflow inward and downward . In general terms, the air flow directing vanes 80 can be characterized as positioned inside 65i of the inner vane arrangement 65 in extension between the first and second opposite sides 65x, 65y. Typically, the driver vane arrangement includes at least first and second driver vanes 80, but can include more than that. In addition, at least one selected, typically at least two, of the directional vanes 80 includes an arcuate section 80r directing airflow into the 65i of the input vane arrangement 65, from an input direction to an output direction . Referring to figure 10, a cross-sectional view of the inner reed arrangement 65, reeds 80 can be seen, each having an arcuate section 80r. 8. Channel arrangement for water collection

[057] It is noted that in preferred applications, according to the present disclosure, the water separator assembly includes a channel arrangement for collecting water, as described here. With reference to figure 6, in general terms, the channel arrangement for collecting water is positioned on an external flow surface of the reed arrangement 65. In particular, the inlet reed arrangement 65 as characterized, has opposite sides 65x , 65y. External surfaces on the 65x, 65y sides, comprise flow surfaces or air flow surfaces, of the input vane arrangement 65.

[058] At least one side, for example, 65x, includes a channel arrangement for collecting water on it. Typically, a channel arrangement for collecting water is provided on each side 65x, 65y.

[059] The channel arrangement for water collection comprises at least one notch or channel on the flow surface, typically a plurality of notches or channels on the flow surface, and in the example shown, a plurality of notches or collection channels on each 65x, 65y sides, in communication with the flow surface thereof. The channels, shown at 70, figure 6, are notches on the flow surface. As water is collected on the flow surface, and is pushed towards the 65z inlet by air flow through the surface, the collected water will tend to be pushed into the notches 70.

[060] The grooves 70 individually have a substantial vertical extension point. At least one of the notches 70, for example, typically has a total vertical extension, i.e., total vertical distance from the uppermost to the lowermost extremities, of at least 300 mm, typically at least 350 mm, for example, 400- 700mm; and overall length which can be somewhat more, for example, on the order of at least 320 mm, typically at least 370 mm, and often 420-720 mm, although alternatives are possible. In the example shown, at least one, and typically a plurality of channels 70 includes an arcuate section therein. In addition, channels 70 are typically continuous in length between opposite ends.

[061] Typically, at least two of the notches are at least 250 mm long, and have a total vertical span of at least 200 mm.

[062] Typically, at least three of the notches are at least 100 mm long, and have a total vertical span of at least 150 mm.

[063] Typically, at least two and typically at least three, of the notches 70 are at least partially in flow alignment, towards a surface 65 of the end 65 and towards the entrance 65z, in a direction parallel to the base 65b . By this it is meant that preferably at least two, and typically at least three of the notches 70 are aligned so that a line can be drawn through two of them and typically at least three of them, whose line is perpendicular to a vertical extent vane 65, in use. In the example shown in Figure 6, three of these notches 70, that is, the bottom three, are positioned in this way.

[064] In the example shown, the three of the lowest channels 70, figure 6, are represented extending from a location adjacent to entrance 65x to a location adjacent to base 65b. In addition, it can be said that the uppermost end of these three areas of channel 70 starts adjacent to collar 65c, on the side of collar 65c away from entrance 65z. (Similarly, a more upper channel or notch 70 ends adjacent to collar 65c).

[065] It was found that the groove or channels 70 facilitate water collection and drainage. Again, as the air flows through the associated flow surface, water will tend to collect and drain in channels 70. The channels are closed, so water cannot pass inwards 65i. Under the influence of gravity, water in channels 70 tends to drain downwards towards a lower end of the channels, from which it can flow into the chute arrangement 75, figure 4, to eventually drain into the drain outlet. water 48.

[066] When the input vane 65 is implemented with 65x, 65y opposite flow sides, it will typically be preferred that there be at least one water collection channel, and typically a plurality of water collection channels, on each of the opposite sides , that is, on a flow surface on each side. Typically each notch is continuous, and is at least 3 mm deep, although it can be substantially deeper, for example, 5 mm or more. Typically, each side includes at least one channel that is at least 320 mm long and extends over a vertical distance of 300 mm. Typically, each side includes at least three channels that are at least 150 mm long and extend over a vertical distance of 100 mm. 9. Example component aspects 10. Example detail of the inner reed arrangement, 65, figures 7 - 10

[067] In figures 7-10, the inner reed arrangement 65 is shown, separate from the housing 23, and bellows duct 21. With reference first to figure 7, a side elevation view directed to the 65x side is provided. Notch 70 artifacts can be seen. In addition, a notch artifact 85 discussed below is visible in the base conduit 60.

[068] In figure 8, an extreme elevation view (or edge) of the inner vane arrangement 65 is provided, taken towards the airflow inlet 65z. the 65i interior is viewable. In the interior 65, directional vanes 80 are visible. Referring to figures 7 and 8, the vanes 80, in the example arrangement shown, are selected and positioned to divide airflow through the interior 65i into four fractions (approximately equal). Alternatives are possible.

[069] The inner reed arrangement 65 can be formed in a variety of ways. A typical example arrangement would be to have casing formed 65 in two side pieces, generally indicated in figure 8 in A and B, which can be fixed together. The lower duct 62 can also be formed into halves, as parts of side parts A and B. An example would be to mold the two sides, A, B of plastic of structural integrity suitable for the intended use, and then fix the two sides together with adhesive, sonic welding, etc.

[070] Still with reference to figures 7 and 8, it is observed that the lower conduit or duct element 62 includes adjacent the end 63, an adapter 89 including notch 89g. The adapter 89 is configured to facilitate fixing the bellows duct 21, figure 6. With reference to figure 6, a gasket ring 90 is shown oriented and positioned between duct 60 and the bellows duct 21. It is observed that a connection snap-fit can be used between the bellows 21 and adapter 89. However, if desired, a band or clip can be provided at that location.

[071] In figure 9, a top plan view of the reed arrangement 50 is provided. It can be seen that the 65x side is (optionally) designed at least in part on aerodynamic principles. More specifically, in extension away from the first end or edge 65e and towards the upper end 65t, the 65x side tapered towards the 65y side. In general, the 65x surface is a flow surface that will have a large amount of air passing over it. Molding with 65x surface contour is selected to facilitate air flow. The 65y side, on the other hand, is relatively flat, and is configured to match a molding of a similar surface in the housing 23.

[072] In general terms, the example inner flap 63 shown, can, in part, be seen as a wing, for example, an airplane wing, directed upwards. It has a relatively blind front end 65 and engaged primarily by the air flow. A 65x surface is contoured similarly to an upper wing surface, tapering downward towards a tip corresponding to the 65t end. A 65x opposite surface, however, is more generally flat. Of course, unlike a wing, collar 65c provided around one end of the frame, adjacent to entrance 65z and notches 70 are provided.

[073] In figure 10, a cross-sectional view of the reed arrangement 65 is shown. Here, the internal flow drivers 80, are shown in cross section, each with its arched section 80r. Also shown is the flow driver 85x which directs flow in the base conduit 62.

[074] Again, the blades 80 and 85x are flow drivers, to facilitate the flow of air that enters inlet 65y to be turned and directed downwards through duct 62 to the end 63. 11. Housing 23; figures 11-13

[075] In figures 11-13, housing 23 is visible. The housing 23 may be molded plastic, as a single piece. It can also be formed into halves, fixed together properly.

[076] In figure 11, a side elevation view of housing 23 is visible. The view is generally taken towards side 28. In figure 12, a view taken towards end 23e is viewable. In figure 13, a top plan view taken towards the top 23t is visible. 12. Venetian layout 32, figures 14-16

[077] Attention is now drawn to figures 14-16, in which entrance 30 and shutter arrangement 32 are represented as a single assembly 100. It is noted that assembly 100 can be formed as a single molded plastic piece. The illustrated assembly 100 comprises a peripheral frame 101 through which individual louvers 33 of the louver assembly 32 extend. Frame 100 also includes an edge ferrule 102 that surrounds and defines entry 30.

[078] The arrangement 100 includes a plurality of mounting elements 105 therein, to which fasteners can be connected to hold the sieve 40 in place, figure 6; and fix the assembly 100 in the housing 23. 13. Sieve arrangement 40, figures 17-19; gasket, figure 20

[079] In figures 17-19 the inlet sieve 40 is shown represented. Referring to figure 17, the inlet sieve 40 comprises an outer ring 40r surrounding the inner 40i. In the interior 40i, the sieve arrangement 40 comprises sieve sections 40s. The 40s sieve sections, for the example shown, are sections of perforated (perforated) plastic. The sieve 40 can be a single molded piece of integral plastic. In figure 17, only a section 40t is represented with holes for simplicity. The other 40s sections would typically be similar.

[080] In figure 17, a view of the inlet sieve 40 is generally taken towards an inlet side 40x of it. This is the side that would face the air entering assembly 20.

[081] In figure 18, a side elevation view of the inlet sieve 40 is visible. In figure 19, a top plan perspective view of the inlet sieve 40 is visible.

[082] From the following example of the dimensions of the sieve 40, a general understanding of a typical modality is facilitated. Typically, the sieve will be about 950 mm high and approximately 130 mm wide. (typically, housing 23 will be approximately 500 mm deep in the inward direction from the entrance of housing 25).

[083] The example dimensions serve to indicate that typically the vertical dimension of the inlet 25 and housing 23 will be at least 2 times as high as the width dimension of the inlet 25, often at least 3 times are high and sometimes 4-10 times so high.

[084] In figure 20, the optional gasket element 60 is visible. The gasket element 60 can be, for example, an EDPM gasket. It can be understood by reference to figure 6, to mount the inlet assembly 45, the sieve 40 is placed against, and partially protruding into the element 100. Fasteners can provide secure connections. This assembly, together with gasket 60, can then be positioned in housing 23, again with fasteners. III. Some general aspects and characteristics of use and assembly operations A. An example engine air flow inlet arrangement, figure 21.

[085] In figure 21, a schematic representation of a typical engine airflow inlet arrangement using an inlet airflow separator assembly according to the above descriptions is shown schematically. With reference to figure 21, in 200 an engine system is represented. The engine system 200 can generally comprise, for example, an internal combustion engine, such as a diesel engine. The engine system 200 includes an air flow inlet 201 through which combustion air is directed into the engine system 200.

[086] Referring to figure 21, the system shown includes an air cleaner arrangement 205 having an interior 205i with a filter cartridge in service conditions 206 positioned therein. Typically in operation, the air cleaner 205 is configured so that air directed to the inlet 207 of the same is directed through the air filter cartridge 206 before leaving the air cleaner 205 through the outlet 208; filtered air from outlet 208 being directed to inlet 201 to engine system 200.

[087] The direction of air to inlet 207 for air cleaner 205 is shown on line 210. This line 210 can, for example, comprise bellows duct 10 and duct 4, figure 1. Air is directed from an assembly airflow water separator 220 which can generally be in accordance with the descriptions of the present invention. Air inlet flow for water separator assembly 220 is shown in arrow 221. In general, the described lateral relationship between air inlet flow 221 for separator assembly 220 and air outlet flow 210 from separator assembly 220 can be seen. At 223, water drainage from separator assembly 220 is shown. B. Example usage environment, figure 22

[088] Airflow inlet water separator assemblies according to the present disclosure are typically configured for use in vehicles. In figure 22, schematically, a typical usage environment is represented. Referring to figure 22, a vehicle 300 is shown having a cab 301 and a loading section 302. Vehicle 300 would typically include an engine system 200, for example, under cab 301. Behind cab 301 is positioned: mounting of 305 air cleaner and 306 inlet airflow water separator. 306 air cleaner and 306 airflow inlet water separator assembly are generally positioned analogously to air cleaner 3 and water separator assembly 5, figure 1. The specific water separator assembly 306 depicted can be analogous to the water separator assembly 20, figure 2. When this is the case, the louvers 32 are generally configured to extend up and back in one direction from the cab 301 towards the loading section 302, that is, up and back with respect to a general direction 310 of the forward movement of the vehicle, in typical use.

[089] The direction of the shutter up and away from the general direction of movement of the vehicle forward is to select performance advantage. In particular, air drawn into the separator assembly 306 is generally laterally with respect to the movement of the truck, and due to the louver position, upward and forward with respect to the movement of the vehicle. Thus, the movement of the vehicle does not cause a "compression" of air into the water separator assembly 306. Instead, the water separator assembly 306 is generally operated under traction air provided by the operation of the engine 200. C. Some general aspects and principles of the typical preferred system according to the present disclosure

[090] An air flow inlet water separator arrangement in accordance with the present disclosure is typically used in a vehicle such as a truck. Such a vehicle would typically have a diesel engine system, having a nominal air flow in the range of approximately 8.5 cubic meters / min. at 42.5 cubic meters / minute, although alternatives are possible. In this context, the term “nominal air flow” is intended to refer to the incoming air flow to the engine, under conditions of operating RPM at full load.

[091] The inlet air flow separator arrangement shown in figures 2-6 is configured, when specific preferred aspects represented are used, so that in operation the advanced movement of the vehicle is not directly used to facilitate water separation. In this way, the air flow separator arrangement 20 differs from some common arrangements, which use water / air flow momentum and vehicle movement, to facilitate separation. In particular, some air inlet air separators are oriented to receive air directed to an inlet face thereon; whose entry face is in the direction of vehicle movement direction. In this way, as the vehicle moves forward, air is pushed (compressed) into the entrance. When this air carries water, the water is forced against a rear wall of the separator, where it collects and drains down and typically through an outlet provided on the rear wall. Such provisions require movement of the vehicle, for efficient water separation. The preferred air inlet water separator arrangement according to the present disclosure is therefore not based on movement of the vehicle to effect water separation.

[092] Instead, the water separator arrangement according to the preferred features characterized above, as shown in figures 1-6, is based on engine air traction, for operation and separation. The direction of air flow inlet into the air inlet water separator arrangement is generally laterally towards or at least not facing the direction of movement of the vehicle when in the forward direction. Indeed, when configured as described, the inlet louver arrangement 32 actually directs the inlet air not only laterally but upwards and somewhat forward in the direction of movement of the vehicle.

[093] It is also noted that the described arrangement is not based on definitions of exotic shutter, with fasteners or other features, to facilitate separation. Although such features can be used, there is no confidence in such features with the present disclosure, as with provisions in accordance with WO 2008/157659. IV. Summary of aspects and principles

[094] In accordance with the present disclosure, an inlet airflow water separator assembly is provided. The inlet airflow water separator assembly is configured for use in separating liquid water from an inlet air flow to an air cleaner arrangement, for example, for inlet combustion air. The water separator assembly of the inlet airflow (sometimes "water separator assembly") generally comprises an inlet assembly comprising an inlet housing having an enclosure airflow inlet and an airflow outlet wrapper. The housing defines a housing interior. In a typical application, the enclosure is configured so that a side flow relationship is provided between the enclosure airflow inlet and shares airflow outlet. By "side flow ratio" and similar terms used here, it is meant that the enclosure air flow inlet and enclosure air flow outlet are not oriented to the air direction through them, in the same direction. Instead, the air must make a loop inside the enclosure in moving from the enclosure airflow inlet to the enclosure airflow outlet. Typically, the turn is configured so that the air flow inlet and outlet direction, with respect to the enclosure, are approximately 90 ° to each other. In a typical, in-use layout, the direction of outflow is generally downward.

[095] The typical inlet airflow water separator assembly includes a reed assembly including an inner reed arrangement positioned within the enclosure. Typically, the inner reed arrangement includes: a reed interior that defines an inner reed arrangement airflow duct; and a substantially closed side extreme edge (or edge), oriented towards the enclosure air flow inlet. By the term "substantially closed" in this context, it is meant that the identified surface is configured to not allow a substantial amount of air flow through it, but is instead closed to such flow. In a typical application, such a surface will be completely closed to air flow through it.

[096] In general terms, the interior vane arrangement includes an airflow inlet, positioned to receive airflow from the interior of the enclosure and direct it to the interior of the vane. In addition, the inner vane arrangement includes an airflow outlet configured to direct airflow from the interior of the vane through the enclosure airflow outlet.

[097] In an example arrangement described, the airflow inlet of the inner reed arrangement is surrounded by the collar projecting radially outwardly, which prevents water collected from the outside of the reed arrangement from reaching the interior of the reed.

[098] In general terms, a typical inlet airflow water separator assembly in accordance with the present disclosure includes a water drain arrangement. The water drain arrangement includes a water drain outlet positioned to drain water from a location inside the enclosure (i.e., from within the enclosure) and outside the interior reed arrangement. The water drain outlet then serves to drain water that enters the enclosure, but does not enter the inlet vane arrangement, from the air flow water separator assembly. The water drain outlet is typically covered by an ejector valve or valve arrangement.

[099] In general operation, then, a typical preferred airflow inlet water separator arrangement, in accordance with the present disclosure, operates with airflow entering an external enclosure through an airflow inlet. external enclosure air. The air is directed around the outside of an inlet vane arrangement, to then enter the interior of the inlet vane arrangement, (typically with air flow over a collar around an inward entrance) whose interior has a inlet directed in a direction generally opposite to the airflow inlet to the enclosure (i.e., generally along the airflow inlet of the enclosure). Within the vane arrangement, the air is then directed downward and outward from the airflow water separating arrangement. The water collects in the enclosure and externally to the inner reed arrangement. This water drains into a water drain arrangement, whereby it is removed from the interior of an airflow water separator arrangement.

[0100] There is no requirement that an airflow water separator arrangement includes all aspects featured here. However, advantageous aspects are characterized in the figures and description.

[0101] Typically, the inlet airflow water separator arrangement or assembly includes as the inner reed arrangement, a reed arrangement configured with the inner reed arrangement airflow inlet facing away from the inlet airflow from casing. In addition, the inner reed arrangement shown has an upwardly directed inlet entry when the airflow inlet water separator assembly is configured and positioned for use. Typically, an entrance plane defined by the entrance to the inner reed arrangement is directed upward at an angle, to the horizontal, of at least 45 ° and no more than 85 °, and often within the range of 60 ° - 80 ° even in use, that is, when the flow separator arrangement is positioned for use.

[0102] In a typical arrangement, the inner reed arrangement includes opposite first and second side sections (surfaces or sides) with a substantially closed front end surface extending between them. Typically, the front end surface is completely closed. The first and second opposite side sections each direct away from the extreme front surface in a direction also away from the enclosure air flow inlet; and the first and second opposite side sections define an air flow duct between them, in the inner vane arrangement. The side sections are preferably substantially closed for airflow through them, typically completely closed. A water channel collection arrangement, for example, channels or notches, can be positioned in one or more of the side sections.

[0103] The represented inlet airflow water separator assembly includes a guide vane arrangement positioned in the inner vane arrangement airflow duct. The driver vane arrangement includes a plurality of driver vanes, typically at least first and second driver vanes positioned in the inner vane disposition airflow duct and extending between the first and second opposite side sections. Each of the first and second directional vanes includes an arcuate section that directs airflow in the inlet vane arrangement airflow duct section, from an input direction to an exit direction; the exit direction is typically down.

[0104] In an example arrangement shown, the inner vane arrangement includes a substantially closed upper end. In the specific example shown, the upper end is completely closed for air flow through it.

[0105] In an example arrangement shown, the inner vane assembly is positioned to define airflow passage around it, that is, around opposite sides of it, within the enclosure.

[0106] In the example shown, the inner reed assembly includes a base portion inside the housing and the water drain arrangement includes a water flow chute arrangement adjacent to the base portion of the inner (and outer reed assembly) to the inner reed assembly) in an enclosure interior. The water flow chute arrangement is configured and positioned to direct collected water to flow between the inner reed arrangement and the housing for the water drain outlet. Typically, the flow of water through the arrangement extends fully, or at least almost entirely, around the inner reed arrangement.

[0107] In one example shown, an airflow inlet screen is positioned through the enclosure airflow inlet. The sieve, for example, can comprise a perforated panel.

[0108] In one example shown, a shutter arrangement is positioned through the enclosure air flow inlet. The shown example shutter arrangement comprises a plurality of spaced shutters extending through the enclosure airflow inlet; inlet air flow from casing having first and second opposite sides and top; and each shutter having an advanced (front) edge extending between the opposite sides. In one example shown, each louver not only extends between the opposite sides, but has an advanced (front) edge generally extending upwards in extension between the first and second opposite sides of the enclosure air flow inlet.

[0109] In an example assembly shown, the shutter arrangement comprises a plurality of spaced shutters extending through a shutter frame. The shutter frame is dimensioned and configured to be fixed to the enclosure, at an entrance of the same.

[0110] A typical assembly includes both an air flow inlet screen and a louver arrangement, as characterized, with the air flow inlet screen being positioned inside, that is, downstream of the louver arrangement. By the term "downstream" in this typical context, reference is intended for an air flow direction through the set of components referenced, in typical use.

[0111] In addition, according to the present disclosure, the inlet airflow water separator assembly is described, which includes an inlet housing having an enclosure airflow inlet and an airflow outlet wrapper, the inlet wrapper defining a wrapper interior; and a reed assembly including an inner reed arrangement positioned within the housing and including an external flow surface with the water collection channel arrangement therein. A water drain arrangement including the water drain outlet is positioned to drain water from a location inside the enclosure and outside the interior reed arrangement. The characteristics of the vane and inlet housing arrangement can generally be as characterized above.

[0112] Typically, the inner vane assembly has at least one first side with a portion of the airflow surface therein; and the water collection channel comprises at least one channel on the first side. The inner reed assembly may have first and second sides, and the water collection channel arrangement may include at least one channel on each of the first and second sides. In a depicted example, at least two channels are positioned on each side, typically 2 - 5 channels on each side.

[0113] The water collection channel arrangement generally includes at least one channel having: a total length of at least 320 mm; and a total vertical span of at least 300.

[0114] Typically, the channels are closed and individually have a depth of at least 5 mm, typically greater than 10 mm, although alternatives are possible.

[0115] Typically at least one channel having a length of at least 320 mm and a total vertical span of at least 300 mm, also includes an arcuate section in it. Typically at least two channels on each side have an arcuate section.

[0116] Also in accordance with the present disclosure, an engine air flow inlet arrangement is provided. The inlet arrangement includes an inlet air separator assembly, generally in accordance with the above characterization; and an air cleaner. In addition, an airflow duct is included, providing airflow from the incoming airflow water separator assembly to the air cleaner. The air cleaner typically includes a housing with an in-service air filter cartridge positioned in it. In a typical arrangement, the air cleaner housing is positioned lower in the equipment with which the incoming airflow water separator assembly is used, than the incoming airflow water separator assembly. Typically it is at least 15.2 cm lower than an inlet for mounting airflow water separators, for example, 30.5 - 183 cm lower, although alternatives are possible.

[0117] Also in accordance with the present disclosure, a vehicle including an engine and an engine airflow inlet arrangement is generally characterized as described. A duct arrangement is characterized as positioned to direct filtrate from the air cleaner to the engine.

[0118] As described, the vehicle has a typical forward direction, and the engine airflow inlet arrangement includes a louver arrangement positioned through the enclosure airflow inlet, which has louvers that extend up and back in relation to the forward direction of the vehicle.

[0119] In a typical system, the vehicle's engine has a nominal flow in the range of 8.5 - 42.5 cubic meters / min. although alternatives are possible.

[0120] In general terms, methods of separating water from an inlet flow to an air cleaner are provided. Methods typically include: (a) Directing air through an enclosure inlet and into an enclosure, in a flow direction; (b) Directing air into the enclosure towards a closed end of an inner reed, and eventually to an open face of the inner reed, the open face of which is generally directed away from the enclosure inlet, and typically at least partially up; and (c) Collect water inside the enclosure, and outside the inner reed, and drain the water from the enclosure.

[0121] The method can be put into practice by directing the air according to the separator assembly aspects described in detail above.

[0122] Again, it is noted that (in general) their arrangements, assemblies, aspects and components, as well as techniques according to the present description, do not need to include all aspects and details characterized here, to obtain any advantage. In addition, there is no specific requirement that the aspects be configured in the precise manner exemplified in the figures.

Claims (21)

1. Assembly of inlet airflow water separator for use in separating liquid water from an inlet airflow to an air cleaner arrangement for inlet combustion air; the water separator assembly being CHARACTERIZED in that it comprises: (a) an inlet assembly comprising an inlet housing having an enclosure airflow inlet and an enclosure airflow outlet; (1) the inlet enclosure defining an enclosure interior; (b) a reed assembly including an inner reed arrangement positioned within the housing interior; the inner reed arrangement including: (i) a reed interior defining an inner reed arrangement airflow duct; (ii) a substantially closed side end surface to flow therethrough, oriented directly towards the enclosure air flow inlet; and (iii) an inner vane arrangement airflow inlet positioned to receive airflow from the enclosure airflow inlet and to direct air through the inner vane to the enclosure airflow outlet; (c) a water drain arrangement including a water drain outlet positioned to drain water from an interior location to the enclosure and an exterior location to the interior reed arrangement; and (d) a shutter arrangement positioned through the enclosure air flow inlet. 2. Inlet air flow water separator assembly according to claim 1, CHARACTERIZED by a collar projecting radially outwardly to be positioned around the air flow inlet of the inner reed arrangement. 3. Inlet airflow water separator assembly according to claim 1 or 2, CHARACTERIZED in that the inner vane arrangement is configured with the inner vane arrangement airflow inlet facing in a generally direction opposite the envelope air flow inlet. 4. Assembly of water separator for inlet air flow, according to claim 2, CHARACTERIZED by the inner reed arrangement being configured with the inner reed arrangement inlet facing an inclined up and away direction of the enclosure airflow inlet, when the inlet airflow water separator assembly is configured for use. 5. Assembly of water separator for inlet air flow, according to claim 4, CHARACTERIZED by the interior reed arrangement defining an entrance plane directed upwards at an angle, relative to the horizontal, of at least 45 ° and not more than 85 °, in use. Inlet air flow water separator assembly according to any one of claims 1 to 5, CHARACTERIZED that the enclosure air flow inlet is disposed laterally in relation to the enclosure air flow outlet. 7. Assembly of inlet airflow water separator according to any one of claims 1 to 6, CHARACTERIZED that the enclosure airflow outlet is directed downwards in use. 8. Inlet air flow water separator assembly according to any one of claims 1 to 7, CHARACTERIZED by: (a) the inner reed arrangement includes: first and second opposite side sections with the lateral end surface substantially closed extending between them; (i) the opposing first and second side sections each being directed away from the side end surface in a direction also away from the enclosure air flow inlet; and (ii) the first and second opposing side sections defining the inner vane arrangement airflow duct between them. 9. Assembly of inlet airflow water separator, according to claim 8, CHARACTERIZED by including at least first and second guiding vanes positioned in the inner vane disposal airflow duct and in extension between the first and second second opposite side sections. 10. Assembly of inlet airflow water separator according to claim 9, CHARACTERIZED by each of the first and second guiding vanes to include an arcuate section directing airflow within the airflow duct section of input reed arrangement from an input direction to an output direction. 11. Inlet air flow separator assembly according to any one of claims 1 to 10, CHARACTERIZED by the inner reed arrangement including a substantially closed upper end. 12. Inlet airflow water separator assembly according to any one of claims 1 to 11, CHARACTERIZED that the inner vane assembly is positioned to define airflow around opposite sides thereof, within the interior of enclosure and between the inner reed assembly and the enclosure. 13. Inlet airflow water separator assembly according to claim 12, CHARACTERIZED by: (a) the inner vane assembly includes a base portion within the housing interior; and (b) the water drain arrangement includes a water flow chute arrangement adjacent the base portion of the inner reed assembly; outside the inner reed assembly and inside the casing; (1) the water flow chute arrangement being positioned to direct water flow collected from it to the water drain outlet. 14. Inlet airflow water separator assembly according to any one of claims 1 to 13, CHARACTERIZED in that it includes an air flow inlet screen positioned through the enclosure airflow inlet. 15. Inlet airflow water separator assembly according to claim 14, CHARACTERIZED by the airflow inlet sieve comprising a perforated panel. 16. Inlet airflow water separator assembly according to any one of claims 1 to 15, CHARACTERIZED by the inner reed arrangement having an external flow surface with a water collection channel arrangement thereon. 17. Inlet airflow water separator assembly according to claim 16, CHARACTERIZED by: (a) the inner reed assembly having at least one first side with a portion of the external flow surface thereon; and (b) the water collection channel arrangement comprises at least one channel on the first side. 18. Inlet airflow water separator assembly according to claim 17, CHARACTERIZED by: (a) the inner vane arrangement includes an inner vane arrangement airflow inlet and a base arrangement arrangement inner reed; (b) the water collection channel arrangement comprises at least two channels on the first side, each of which extends from a location adjacent to the interior vane disposal air flow inlet to a location adjacent to the disposal base inner reed. 19. Assembly of inlet airflow water separator for use in separating liquid water from an inlet airflow to an air cleaner arrangement for inlet combustion air; the water separator assembly being CHARACTERIZED in that it comprises: (a) an inlet assembly comprising an inlet housing having an enclosure airflow inlet and an enclosure airflow outlet; (1) the inlet enclosure defining an enclosure interior; (b) a reed assembly including an inner reed arrangement positioned within the housing interior; the inner reed arrangement including: (1) an external flow surface with a water collection channel arrangement thereon; and (c) a water drain arrangement including a water drain outlet positioned to drain water from an interior location to the enclosure and an exterior location to the interior reed arrangement. 20. Inlet airflow water separator assembly according to claim 19, CHARACTERIZED by: (a) the inner reed assembly having at least one first side with a portion of the external flow surface thereon; and (b) the water collection channel arrangement comprises at least one channel on the first side. 21. Method of separating water from an inlet airflow to an air cleaner, the method being CHARACTERIZED as it includes the steps of: (a) directing air through an enclosure inlet and into an enclosure interior, in one direction incoming flow; (b) directing air inside the enclosure to a closed end of an inner flap, and to an open face of the inner flap, which open face is directed away from the enclosure entrance; and (c) collect water in the inner and outer shell of the inner reed, and drain the water from the shell.

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