MXPA01008652A - Sealing system for filter - Google Patents

Abstract

A filter pack includes a filter construction (100) and a sealing system (60) for sealing the construction within a duct or housing (305). The filter construction has first and second (110) opposite flow faces and is configured for a straight-through flow. The sealing system (60) includes a frame construction (205) and a compressible seal member (250). The compressible seal member is molded around a portion of the frame construction. The compressible seal member (250) is sufficiently compressible to form a radial seal (172) between and against the frame construction (205) and a surface of a housing (305) when the filter pack (100) is inserted within the housing (305).

Description

SEALING SYSTEM FOR FILTER FIELD OF THE INVENTION The description refers to engine filter constructions and filter filtering and preparation methods. In particular, the description describes a filter arrangement that has a sealing system.

BACKGROUND OF THE INVENTION Gas streams often carry particulate material therein. In many cases, it is desirable to remove some or all of the particulate material from a gas flow stream. For example, air intake streams for engines for motor vehicles or power generation equipment, gas streams directed to gas turbines, and air streams for various combustion furnaces, often include particulate material therein. The particulate material, if it reaches the internal work parts of the various mechanisms involved, can cause substantial damage to them. Therefore, it is preferred for such systems, to remove the particulate material from the upstream of the gas flow of the engine, turbine, furnace or other equipment REF. No.: 132197 involved. A variety of air filter or gas filter arrangements have been developed for the removal of particulate material. In general, however, continuous improvements are sought. WO9740908 discloses a conical filter having fluted filter means and an axial seal. The filter elements in O9740908 are formed by joining layers of the filter medium to form a circular cross section. The elements move axially as they are wound or placed in a shaped form as the sealing compound or sealant is still flexible to form the element. W09741939 discloses a plastic end disk for an annular filter element, through which the flow is radial. EP0581695 describes a filter assembly with deformable sealing end caps. US Patent 3,695,437 discloses an oil filter with an anti-drain back valve. The filter element is cylindrical with radial flow, and uses an axial sealing system. EP0704233 describes a rotary filter having a folded element and radial flow. An axially direct sealing system is used.

BRIEF DESCRIPTION OF THE INVENTION This description describes an air flow system for motor. The air flow system comprises a construction of the filter element that includes an intermediate packing and a sealing system. In the preferred configurations, the sealing system will have a frame arrangement and a seal element, wherein the frame arrangement includes an extension that projects axially from one of the flow surfaces of the middle package. In particularly preferred arrangements, the seal element is supported by the extension of the frame arrangement. Hereby constructions of the filter element are described. Preferred filter element constructions will include one such as those characterized above. The methods of filtering systems, service filtration systems, and construction of filter arrays are described here. Preferred methods will use filter elements and constructions as previously characterized.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective, schematic view of one embodiment of a filter package, according to certain principles of this description; Figure 2 is a schematic perspective view of a portion of the filter medium usable in the arrangements of Figure 1; Figure 3 is a schematic, perspective view of an approach for manufacturing a filter package usable in the arrangements of Figure 1. Figure 4 is a schematic plan view of one embodiment of a package sealing system of filters of Figure 1; Figure 5 is a fragmentary, schematic cross-sectional view of the arrangement of Figure 1, illustrated sealed in an air cleaner for use; Figure 6 is a schematic, cross-sectional view of the frame of the sealing system of Figure 4, taken along line 6-6 of Figure 4; Figure 7 is a fragmentary, schematic, cross-sectional, elongated view of one embodiment of the compressible seal member of the sealing system of Figure 4, in accordance with the principles of this disclosure; Figure 8 - is a perspective, schematic view of an air cleaner mode, in which a set or pack of filters can be used according to the principles of this description; Figure 9 is a cross-sectional, schematic view of the air cleaner shown in Figure 8, showing the set or packing of filters shown in Figure 1 installed therein: Figure 10 is a perspective, schematic view of a first alternative mode of a set or packet of filters, in accordance with the principles of this description; Figure 11 is a schematic, perspective view of a middle portion of the set or pack of filters of Figure 10; Figure 12 is a schematic, perspective view of one embodiment of a frame portion for a sealing system of the filter package shown in Figure 10; Figure 13 is a schematic, cross-sectional view of one embodiment of the sealing system usable in the filter package shown in Figure 10, taken along line 13-13 of Figure 10; Figure 14 is a schematic side elevational view of an alternate mode of an air cleaner, in accordance with the principles of this disclosure; Figure 15 is a schematic, cross-sectional view of the air cleaner shown in Figure 14 and taken along line 15-15 and showing the set or pack of filters of Figure 10 installed therein; Figure 16 is a schematic view of one embodiment of a system in which air scrubbers are used in accordance with the present disclosure; Figure 17 is an end elevation view of an alternative embodiment of the set of filters shown in Figure 1; and Figure 18 is an end elevation view of another embodiment of the set of filters shown in Figure 1.

DETAILED DESCRIPTION A. FIGURES 1-7 Attention is drawn to Figure 1. Figure 1 is a perspective view of a first embodiment of a set or packet of filters 50. The set of preferred filters 50 shown includes filter means 55 and a sealing system 60. In preferred constructions, the filter means 55 is designed to remove particulate material from a fluid, such as air, which passes through the filter medium 55, while the sealing system 60 is designed to seal the set or pack of filters 50 against a side wall of a housing or conduit, as shown in Figures 8 and 9. By the term "seal", it is understood that the sealing system 60, under normal conditions, prevents pass unplanned fluid levels through a region between the filter set 50 and the side wall of the housing or conduit; that is, the sealing system 60 inhibits the flow of fluid to prevent passage through the filtering means 55 of the set or pack of filters 50. In certain preferred arrangements, the filter means 55 will be configured for straight or in-line flow. . By "straight or in-line flow", it is understood that the filter medium 55 is configured in a construction 10O with a first flow surface 105 (corresponding to an inlet end, in the illustrated embodiment) and a second flow surface 110, opposite, (corresponding to an exit end, in the illustrated embodiment), with fluid flow entering a direction 114 through the first flow surface 105 and exiting in the same direction 116 from the second surface flow 110. When used with an in-line flow housing, in general, fluid will enter through the housing inlet in one direction, enter the construction of the filter 100 through the first flow surface 105 in the same direction, it will exit the filter construction 100 in the same direction from the second flow surface 110, and will exit the housing through the outlet of the housing also in the same direction. Although the first flow surface 105 is described above as corresponding to an inlet end, and the second flow surface 110 is described above as corresponding to an outlet end, the inlet and outlet ends may be inverted. That is, the first flow surface 105 shown in Figure 1 may correspond to an exit end, while the second flow surface 110 shown in Figure 1 may correspond to an entry end.

In Figure 1, the first flow surface 105 and the second flow surface 110 are shown both flat and parallel. In other embodiments, the first flow surface 105 and the second flow surface 110 may be non-planar, for example, frustoconical. Additionally, the first flow surface 105 and the second flow surface 110 need not be parallel to each other. Generally, the filter construction 100 will be a rolled construction. That is, the construction 100 will typically include a middle layer of the filter that is red completely or repeatedly around a central point. Typically, the rolled construction will be a coil, because a layer of the filter medium will be wound in a series of turns around a center point. In arrangements where a coiled, helical construction is used, the construction of the filter 100 will be a cylinder of filter media, typically fluted filter media, typically permeable. Now turn attention to Figure 2. The Figure 2 is a perspective, schematic view, demonstrating the principles of certain preferred means usable in the filter constructions herein. In Figure 2, a grooved construction is generally designated 122. Preferably, grooved construction 122 includes: a layer 123 of corrugations having a plurality of grooves 124 and a surface sheet 132. The embodiment of Figure 2 shows two sections of the surface sheet 132, at 132A (shown at the top of the corrugated layer 123) and at 132B (shown below the corrugated layer 123). Typically, the construction of the preferred medium 125 used in arrangements described therein will include the corrugated layer 123 secured to the bottom surface sheet 132B. When this media construction 125 is used in a rolled construction, it will typically be wound around it, so that the lower surface sheet 132B will cover the upper part of the corrugated layer 123. The surface sheet 132 covering the upper part of the corrugated layer is shown as 132A. it should be understood that the surface sheet 132A and 132B are the same sheet 132. When this media construction 125 is used, the channel chambers 124 preferably form peaks 126 and alternative depressions 128. The depressions 128 and the peaks 126 divide the grooves into an upper row and a lower row. In the particular configuration shown in Figure 2, the upper grooves form the grooved chambers 136 closed at the stream end, while the grooved chambers 134 having their closed upstream end form the lower row of grooves. The channel chambers 134 are closed by a first end flange 138 that fills a portion of the upstream end of the groove between the rib sheet 130 and the second confronting sheet 132B. Similarly, a second end flange 140 closes the stream end of alternate grooves 136. In some preferred systems, both the first end flange 138 and the second end flange 140 are straight along all portions of the groove. the construction of means 125, never deviate from a straight path. In some preferred systems, the first end flange 138 is both straight and never deviates from a position at or near one end of the media construction 125, while the second end flange 140 is as straight as ever deviates from a position at or near one end of the media construction 125. The grooves 124 and end flanges 138, 140 provide the construction of means 125 that can be formed in the construction of the filter 100 and is self-supporting structurally without an accommodation. When the means constructed in the means construction form 125 are used, during use, the unfiltered fluid, such as air, enters the chambered chambers 136 as indicated by the shaded arrows 144. The chambered chambers 136 have their ends upstream 146 open. It is not permissible for the unfiltered fluid flow to pass through the stream ends 148 of the channel chambers 136 because of their stream ends 148 are closed by the second end flange 140. Therefore, the fluid is force to advance through the ribbed sheet 130 or the surface sheets 132. As the unfiltered fluid passes through the ribbed sheet 130 or surface sheets 132, the fluid is cleaned or filtered. The cleaned fluid is indicated by the unshaded arrow 150. The fluid then passes through the grooves 134 (which have their upstream ends 151 closed) to flow through the open stream end 152 (Figure 1) out of the corrugated construction 122. With the configuration shown, the unfiltered fluid can flow through the ribbed sheet 130, the upper facing sheet 132A, or the lower facing sheet 132B, and into a grooved chamber 134. Typically, the construction of means 125 will be prepared and then rolled up to form a rolled construction 100 of the filter means. When this type of means is selected for use, the construction of means 125 prepared includes the corrugation sheet 123 secured with the end flange 138 to the lower surface sheet 132B (as shown in Figure 2)., but without the upper surface sheet 132A). In these types of arrangements, the construction of the means 125 will include a leading edge at one end and a trailing edge at the opposite edge, with an upper side edge and a lower side edge extending between the leading edges and trailing edges. By the term "leading edge" is meant the edge that will be initially rotated or wound, so that it is on or adjacent to the center or core of the rolled construction. The "trailing edge" will be the edge on the outside of the rolled construction, until the completion of the turning or winding process. The leading edge and the trailing edge should be sealed between the corrugated sheet 123 and the lower surface sheet 132B, prior to the rolling of the sheet in a roll, in these types of media constructions 125. As long as a number of shapes are possible , in certain methods, the seal at the leading edge is formed as follows: (a) the corrugated sheet 123 and the lower surface sheet 132B are cut or divided along a line or path extending from the upper side edge to the lower side edge (or, from the upper side edge) along a groove 124 that forms a peak 126 at the highest point (or apex) of the peak 126; and (b) sealant is applied between the bottom surface sheet 132B and the corrugation sheet 123 along the line or cutting path. The seal at the trailing edge can be formed analogously to the process of forming the seal at the trailing edge. While a number of different types of sealing material can be used to form these seals, a usable material is a sealing material without foam available from H.B. Fuller, St. Paul, Minnesota, identified under the designation HL0842. When the construction of means 125 is used, it may be desired by the system designer to wind the construction 125 in a rolled construction of the filter medium, such as the construction of the filter 100 of FIG. 1. A variety of shapes may be used for wind or wind the media. Attention is drawn to Figure 3. In the particular embodiment shown in Figure 3, the construction of means 125 is wound around a center mandrel 154 or other element to provide a mounting element for winding. The chuck of the center 154 can be removed or left to seal to act as a core in the center of the construction of the cylindrical filter 100 (Fig. 1). It can be appreciated that the non-round center winding elements can be used to make other forms of filter means, such as filter media having an oblong, oval, rectangular or track profile. The construction of means 125 can also be rolled without a mandrel or center core. A method of forming a rolled construction without a core is as follows: (a) depressions 128 of some of the first corrugations of corrugated sheet 123 spaced from the leading edge are marked from the upper side edge to the lower side edge (or from the lateral edge inferior to the upper lateral edge) to aid in the winding of the construction 125; for example, the first four corrugations from the leading edge will have a marking line cut along the depressions 128; (b) the rim 140 of sealing material is applied along the top of the corrugation sheet 123 along the opposite lateral edge from the side edge having the end rim 138; (c) the leading edge is initially rotated or rolled on itself and then tightened together to be sealed with the end of sealing material 140; and (d) the remaining corrugated sheet 123 having the lower surface sheet 132B secured thereto is wound or rolled or rotated around the pressed leading edge. In other methods, constructions without cores can be made from the construction of means 125 by automatic processes, as described in U.S. Patent Nos. 5,543,007 and 5,435,870, each incorporated by reference herein. In still -other methods, media construction can be rolled up by hand. When using rolled constructions such as the Construction of the filter 100, the system designer will require to ensure that the outer periphery of the construction 100 is closed or fixed in place to prevent unwinding of the construction of the filter 100. There are a variety of shapes to do this. In some applications, the outer periphery is wound with a layer of the periphery. The periphery layer can be a non-porous adhesive material, such as plastic with an adhesive on one side. When this type of layer is used, the periphery layer prevents unwinding of the construction of the filter 100 and prevents the fluid from passing through the outer periphery of the filter construction 100, keeping the flow straight or in line through. of the construction of the filter 100. In some applications, the first construction 100 is secured in its rolled construction by sealing the trailing edge of the media construction 125 with an adhesive or sealant material along the line 160 (Figure 1) to ensure the trailing edge or posterior to the external surface of the construction of the filter 100. For example, a heat fusion flange can be applied along the line 160. Attention is again directed to Figure 1. In Figure 1, the second flow surface 110 is shown in schematic form. There is a portion at 112 in which the grooves including the open ends 152 and closed ends 148 are shown. It should be understood that this section 112 is representative of the entire flow surface 110. For reasons of clarity and simplicity, the grooves do not they are shown in the remaining remaining portions of the flow surface 110. The upper and lower plan views, as well as lateral elevation views of a set or pack of filters 50 usable in the systems and arrangements described herein are shown in the Application US Patent Series No. 29 / 101,193, copending and commonly assigned, filed February 26, 1999, and titled, "Filter Element Having Sealing System," incorporated herein by reference. Returning again to Figure 9, the filter construction 100 is shown installed in a housing 305 (which may be part of an air inlet duct in a motor or turbo). In the arrangement shown, the air flows in the housing 305 through 306, through the construction of the filter 100, and out of the housing 305 through 307. When the media constructions such as filter constructions 100 of the type shown are used in a duct or housing 305, a sealing system 60 will be necessary to ensure that air flows through the construction of means 100, rather by diverting it. Referring now to Figure 5, which shows a fragmented, elongated view of the construction of the filter 100 installed in the housing 305, the particular sealing system 60 shown includes a frame construction 170 and a sealing element 250. When this type of sealing system 60 is used, the frame construction 170 provides a support structure or backing against which the sealing element 250 can be compressed to form a radial seal 172 with the conduit or housing 305. Still with reference to the Figure 5, in the particular embodiment shown, the frame construction 170 includes a rigid projection 174 projecting or extending from at least a portion of one of the first and second flow surfaces or surfaces 105, 110 of the filter construction 100. The rigid projection 174, in the particular arrangement shown in Figure 5, extends axially from the second flow surface 110 of the construction. filter 100. The embodiment of the particular Figure 5 shows the projection 174 projecting axially above the second full flow surface 110, due to the flat shape of the second flow surface 110. In the arrangements where the surface of flow is not flat, such as frustoconical, the projection 174 may be designed to project "above only a portion of the flow surface. For example, in a frustoconical filter construction, it could be a portion of the center at or near the core that extends above the projection 174. Figure 6 shows a cross-sectional view of the construction of the particular frame 170 shown in FIG. Figure 5. In Figure 6, the projection 174 shown has a pair of opposite sides 176, 178 joined by an end tip 180. In the preferred arrangements, one of the first and second sides 176, 178 will provide support or support to the sealing element 250 so that a seal 172 can be formed between and against the selected side 176 or 178 and the appropriate surface of the housing or conduit. When this type of construction is used, the projection 174 will be a continuous element forming a closed loop structure 182 (Figure 4). The sealing element 250 may be coupled to or be adjacent to either an inner side 184 of the circuit structure 182, or the outer side 186 of the circuit structure 182. When the inner side 184 of the circuit structure 182 is engaged, the sealing element 250 can be compressed between the projection 174 and a tubular element inserted inside the circuit, so that the projection 174 and the seal element 250 circumscribe the tubular element. This could form a radial seal between and against the outer portion of the tubular element and the inner side 176 of the projection 174 (and the circuit structure 182). The seal element 250 can also couple the outer portion 186 of the circuit structure 182. When this type of construction is used, a housing or conduit can circumscribe the projection 174 and the circuit structure 182 that includes the seal element 250 for forming a seal between and against the external side 178 of the projection 174 and an internal surface of the housing or conduit. In certain preferred arrangements, the seal member 250 engages or covers both the inner side 184 and the outer side 186 of the circuit structure 182. In the particular embodiment shown in Figure 5, the seal member 250 engages the tip end 180 of projection 174 also, so that seal member 250 covers projection 174 of exterior side 186, on end tip 180, and interior side 184. Attention is drawn to Figures 4, 5 and 6. The Figure 4 is a schematic plan view of the sealing system 60 of Figure 1; Figure 5 is a fragmentary, schematic, cross-sectional view of the filter set 50 of Figure 1 installed in the housing 305; and Figure 6 is a schematic, cross-sectional view of the construction of the frame 170 of the sealing system 60 of Figure 4. In general, when the frame constructions 170 such as those described herein are used, the construction of the frame 170 will include a frame 205. The frame 205 can have a variety of shapes. In the particular embodiment illustrated in Figure 4, the shape of the frame 205 is generally circular. The frame 205 shown in Figure 4 is convenient because it is arranged and configured to join the second flow surface 110 of the construction of the filter 100. Referring now to Figure 6, in the particular arrangement shown, the frame 205 has a - band, skirt, or dependent edge 251 which is generally circular and has an inner diameter. Preferably, the internal diameter is approximately equal to the external diameter of the construction of the filter 100. The dependent edge 251 depends or extends down a first distance from a surface of the lower part 252 of diagonals 210. The dependent edge 251 is arranged and configured to radially extend around the second flow surface 110 the construction of the filter 100. Referring to Figure 5, in the particular embodiment shown, the dependent edge 251 extends radially around the second flow surface 110 of the filter medium 100. , so that the dependent edge 251 extends into the first distance of the second flow surface 110 of the construction of the filter 100, defining an overlay region 255. The frame 205 is preferably secured to the construction of the filter 100. A A variety of ways to secure the frame 205 for the construction of the filter 100 is possible. A particularly preferred way to secure the frame 205 to the construction of the filter 100 is by the use of an adhesive. In the particular embodiment shown in Figure 5, the adhesive is oriented in the superposed region 255 between the dependent edge 251 and the construction of the filter 100. Preferably, the adhesive permanently fixes the frame 205 to the construction of the filter 100 as long as it is prevented fluid escapes through the superposed region 255 between the construction of the filter 100 and the frame 205. In the alternative embodiments, the frame 205 can be temporarily attached to the construction of the filter 100. By the term "temporarily", it is it is understood that the frame 205 can be removed from the construction of the filter 100 without damaging any sealing system 60 or the construction of the filter 100. During the use of frames 205 of the type shown herein, the forces inwardly are exerted around the circumference of the frame 205. The anchors or cross supports 210 support the frame 205. By the term "support", it is understood that the diagonals 210 pre the frame 205 of the collapse comes radially under the forces exerted around the circumference of the frame 205. Referring again to Figure 6, the particular projection 174 shown, preferably includes an end portion 263, or annular sealing support. In some shown in Figure 6, the end portion 263 is generally circular and is arranged and configured for insertion into a housing or conduit. When the end portion 263, circular, defines an internal diameter. Between the end portion 263 and the dependent edge 251, the frame 205 includes a step 253. The step 253 provides a transition area between the larger internal diameter of the dependent edge 521 and the smaller internal diameter of the end portion 263 .

When constructed according to the arrangement shown in Figures 5 and 6, the end portion 263 provides support for the compressible seal element 250. The compressible seal member 250 is preferably constructed and arranged to be sufficiently compressible between the end portion 263 of the frame 205 and a side wall 260 of a housing or conduit. When sufficiently compressed between the end portion 263 and the side wall 260, the radial seal 172 is formed between the filter set 50 and the side wall 260. A variety of shapes is possible to secure the seal element 250 to the end portion 263. A particularly convenient and preferred form is by molding the seal member 250 to engage, cover, or superimpose both the outer radial side 270 of the end portion 263 and the inner radial side 271 of the end portion 263, which includes the final end 180 (Figure 7). A particular embodiment of this configuration is shown in Figure 7. Seal element 250, in Figure 7, completely covers end portion 263. End portion 263 of frame 205 defines a wall structure or support between and against which a radial seal 172 can be formed by the compressible seal element 250. The compression of the compressible seal element 250 in the sealing system 60 is preferably sufficient to form a radial seal under the insertion pressures of not greater than 36.32 kg (80 lbs), typically, no greater than 22.70 kg (50 lbs), for example, approximately 9.08-18.16 kg (20-40 lbs), and enough light to allow convenient and easy manual exchange. Preferably, the compression amount of the compressible seal element 250 is at least fifteen percent, preferably not more than forty percent, and typically between twenty and thirty three percent. By "compression amount" is meant the physical displacement of an outermost portion of the seal member 250 radially towards the end portion 263 as a percentage of the outermost portion of the seal member 250 in a state of rest, unaltered and not installed inside a conduit or subject to other forces. Attention is drawn to Figure 7. Figure 7 is a schematic, elongated fragmentary view of a particular, preferred seal element 250 in an uncompressed state. In the preferred embodiment shown, the seal member 250 is a stepped cross section configuration that decreases the outermost dimensions (diameter, when circular) of a first end 264 to a second end 265, to achieve desirable sealing. Preferred specifications for the profile of the particular arrangement shown in Figure 7 are as follows: a polyurethane foam material having a plurality of (preferably at least three) progressively larger steps configured for interconnection with the side wall 260 (FIG. 5) and provides a seal to the fluid. The compressible seal element 250 defines a gradient for increasing the internal diameters of the surfaces to be connected with the side wall 260. Specifically, in the example shown in Figure 7, the compressible seal element 250 defines three steps 266, 267, 268 The cross-sectional dimension or within the steps 266, 267, 268 increase the addition of the step 266, 267, 268 is from the second end 265 of the compressible seal element 250. The smaller diameter at the second end 265 allows the Easy insertion in a conduit or housing. The larger diameter at the final end 264 ensures a seal. In general, for a properly functioning radial sealing structure, the compressible seal element 250 needs to be compressed when the element is mounted in the housing 305 or conduit. In many preferred constructions, it is compressed between about fifteen percent and forty percent (often about twenty to thirty three percent) of its thickness, in the thickest portion, to provide a strong sturdy seal that is still that which can result from the manual installation of the element with forces in the order of 36.32 kg (80 pounds) or less, preferably 22.70 kg (50 pounds) or less , and generally 9.08-18.16 kg (20-40 pounds). In general, the filter set 50 can be arranged and configured to be pressurized against the side wall 260 of the housing 305 or conduit. In the specific embodiment shown in Figure 5, the compressible seal member 250 is compressed between the side wall 260 and the end portion 263 of the frame 205. After compression, the compressible seal member 250 exerts a force against the side wall 260 that the compressible seal element 250 tested expands outwardly to its natural state, forming radial seal 172 between and against end portion or tip 263 and side wall 260.

B. Figures 8 and 9 Attention is drawn to Figure 8. Figure 8 is a schematic, perspective view of an air cleaner 300. In certain systems, the filter set 50 is designed to be inserted into a housing 305 of an air cleaner 300. The housing 305 is typically part of pipes in air flow communication with an air absorption system for a motor. As used herein, the term "pipes" or "conduit" will include structures such as pipes, pipes, and air cleaner housing. A variety of housings can be used with the kit or filter pack 50. In the particular embodiment shown in Figure 8, housing 305 includes a body member or a first housing compartment 310 and a removable cover or second housing compartment 315 In some arrangements, the first housing compartment 310 is attached to an object, such as a truck. The second housing compartment 315 is securely removed to the first housing compartment 310 by a latching device 320. Preferably, the latching device 320 includes a plurality of fasteners 325.

While the housing can have a variety of cross-sectional configurations, in the particular embodiment illustrated, the first and second housing compartments 310, 315 are circular. In the arrangement shown, the first housing compartment 310 has an external region 330. The outer region 330 is designed to allow the fluid to be emptied from the filter assembly 300 during use. Similarly, the second housing compartment 315 has an inlet region 335. The inlet region 335 is designed to allow fluid to flow to the filter assembly 300 during use. In preferred constructions, housing 305 will be an in-line housing. As, the outer region 330 and the inner region 335 are aligned coaxially, to allow air to flow through the inner region 335 and to flow through the outer region 330 in the same direction. This can be seen in Figure 9. The filter set 50 is preferably constructed and arranged to be pressurized against the side wall 260 of the housing 305. In the embodiment illustrated in Figure 9, the second end 110 of the filter set 50 with the bonded frame 205 and the compressible seal member 250 is inserted into the first housing compartment 310. The filter set is pressurized into the first housing compartment 310 so that the compressible seal member 250 is compressed between and against the end portion 263 of the frame 205 and the side wall 260 of the first housing compartment 310, to form the radial seal 172 therebetween. During the use of the arrangement shown in Figure 9, the fluid enters the housing assembly 300 in the inlet region 335 of the second housing compartment 315, in the direction shown at 306. The fluid passes through the construction of the filter 100. When the fluid passes through the construction of the filter 100, the contaminants are removed from the fluid. The fluid leaves the housing assembly 300 to the external region 330, in the direction of 307. The compressible seal member 250 of the sealing system 60 forms the radial seal 172 to prevent contaminated fluid from leaving the housing assembly 300, without that first go through the construction of the filter 100.

C. Figures 17 and 18 It should be appreciated that the filter set 50 may have additional spacers to ensure that the proper degree of filtration is conducted. The separators may be either upstream of the filter set 50 or downstream of the filter set 50, depending on the particular application and the desired results. These separators can take the form of pre-debuggers in some modalities, or post-debuggers (such as security filters or secondary filters). further, these separators may be in the form of single or multiple layers of filtering means, located either upstream or downstream of the construction of the filter 100. The filter media used in these applications will typically be selected based on the degree of filtering desired and the amount of restriction introduced by the filter means. For example, it may be that in certain applications, it is desired to filter large particles (i.e., debris such as leaves, butterflies, clods of earth or mud) while introducing a little more additional restriction. In this application, a layer of media such as screen or screen can be used upstream of the construction of the filter 100. It may also be desired to introduce an additional amount of filtrate just downstream of the construction of the filter 100. This can be done by a layer (or multiple layers) of media immediately downstream of the construction of the filter 100. Attention is drawn to Figure 17. Figure 17 illustrates an alternative embodiment of the set or packet of filters 50, generally shown at 50 '. The filter set 50 'is similarly configured and constructed as the set or packet of filters 50, illustrated in Figure 1, with the exception of the first flow surface 105', which corresponds to an upstream or an inlet end 106. ' Figure 7 illustrates an end elevation view of the filter set 50 ', which considers the upstream end 106'. In the particular filter set 50 'illustrated in Figure 17, the entire upstream end 106' is covered by a media layer 107 'to separate the large particles from the gas stream before the gas stream reaches the construction of the filter 100. Depending on the request and the desired degree of filtration and restriction, the means 107 'may be of a variety of types. In many typical applications, the means 107 'will be sized to allow the removal of particles such as butterflies, leaves, large clods of earth, and other types of debris. A type of usable media have the following characteristics and properties: polyester material; 50% of the fibers that are approximately 15 denier and 50% of the fibers that are approximately 6 denier in weight; the binder that houses the fibers together is modified PVC of oil-resistant rubber; a base weight of 224 q / tX ~ (6.6 oz / yd2); a thickness of approximately 0.93 cm (0.37 inches); a permeability of approximately 1066 m / m (3500 ft / m) in a H20 restriction of 1.27 cm (0.5 in). As described above, it is also desirable to introduce the downstream separation of the first filter construction 100. An example is illustrated in Figure 18. Figure 18 is an extreme elevation view of an alternative embodiment of the filter set 55, as it is observed from the second flow surface 110. The filter set 50"shown in Figure 18 is constructed similarly as the filter set 50 of Figure 1, with the exception of an additional separator 111" located downstream of the construction of the filter 100. While a variety of embodiments is contemplated, in the particular embodiment illustrated in Figure 18, the separator 111"is in the form of a media layer 112" located downstream of the construction of the filter 100. media layer 112"may be either immediately adjacent to and against the construction of the filter 100, or it may be located downstream of the frame 205", in the single illustrated or in Figure 18, the means 112"are immediately downstream of and against the construction of the filter 100. That is, the means 112" are located between the construction of the filter 100 and the diagonals 210"of the frame 205". The type of means 112"used will depend on the desired degree of filtration and the amount of restriction that is introduced.Media 112" may be a single layer or multiple layers. In the one illustrated in Figure 18, means 112"includes non-woven, non-pleated, fibrous depth means 113" A usable material for depth medium 113"has the following characteristics: 1 layer of 136-163 g / m2 (4.0-4.8 oz / yd2) of polyester fiber depth media (mixed fibers); 14-18 mm) (0.55-0.70") thick free state (as measured under compression of 0.002 psi), average fiber diameter approximately 21.0 microns (average in mass weight) or approximately 16.3 microns (average in weight in length); permeability (minimum) 152 m / min (500 feet / min.); Free state consistency approximately 0.6-1.0%, typically in approximately 0.7% form. It is contemplated that in certain applications, it is desired to have a set of filters 50 that include both an upstream filter 107 'and a downstream filter 111".

D. Figures 10-15 Attention is drawn to Figure 10. Figure 10 is a perspective view of another embodiment of a filter set 450. In the construction depicted, the filter set 450 includes filter means 455 and a sealing system 460. The filter means 455 is designed to remove contaminants from a fluid, such as air, which passes through the filter means 455. The sealing system 460 is designed to seal the filter media 455 to an accommodation or conduit. In certain preferred arrangements, the filter means 455 will be configured in a filter construction 470 with a first flow surface 471 and a second flow surface 472 opposite. Attention is drawn to Figure 11. In the particular embodiment illustrated in Figure 11, the construction of the filter 470 is configured for straight path flow. This means, as explained above, that the fluid to be filtered will enter the first flow surface 471 in a certain direction 477 (Figure 10) and exit to the second flow surface 472 in the same direction 478 (Figure 10). The construction of the filter 470 can have a variety of configurations and cross-sectional shapes. In the particular embodiment illustrated in Figure 11, the construction of the filter 470 has a non-circular cross section. In particular, the embodiment of Figure 11 of the filter construction 470 has an ob-round or "track" cross-sectional shape. By "cross-sectional" cross-sectional shape, it is understood that the construction of the filter 470 includes first and second semicircular ends 511, 512 joined by a pair of straight segments 513, 514. In general, the construction of the filter 470 will be a rolled construction . That is, construction 470 will include a layer of filter media that is rotated completely or repeatedly around a central point. In certain preferred arrangements, the rolled construction will be a roll, because a layer of filter media will wind a series of turns around a central point. In additional preferred arrangements, the construction of the filter 470 will be a rolled construction, typically a roll of filter media, for example permeable grooved filter media. Many different forms of fabrication of the media construction 470 can be used. In some techniques, a unique facing filter medium, such as the filter means 122 illustrated in Figure 2, is wound around a core mandrel or other structure to provide a mounting element for winding. The center mandrel can be removed or left to cover the center of the filter construction 470. In the particular embodiment shown in Figure 11, a center core 454 is illustrated occupying the center of the roll of the filter means 455. In Figures 10 and 11, certain portions 475 are shown showing the grooves, including the open and closed ends. It should be understood that this portion or section 475 is representative of the entire flow surface 472 (as well as the first flow surface 471). For reasons of clarity and simplicity, the grooves are not represented in the other remaining portions of the flow surface 472. The upper and lower plan views, as well as the side elevation views of the filter set 450 usable in the systems and The arrangements described herein are represented in copending and commonly assigned U.S. Patent Application No. 29 / 101,193, filed on February 26, 1999, and entitled, "Filter Element Having Sealing Systems," herein incorporated by reference. As with the modality of Figure 1, the kit or filter pack 450 includes a sealing system 460. In the preferred constructions, the sealing system 460 includes a frame 605 and a seal element 650. While a variety of configurations are contemplated herein, a particularly preferred embodiment of the frame 605 is shown in perspective view in Figure 12. In the particular arrangement shown in Figure 12, the frame 605 has a non-circular shape, for example, ob-round and in particular, a track shape and is arranged and configured to join the second end 510 of the filter means 455. In particular, the frame 605 has a band or skirt or dependent edge 651 which is generally formed as a track. The dependent edge 651 depends on or extends downwardly at a distance from a lower surface 652 of the diagonals 610. The dependent edge 651 is arranged and configured to extend radially around the second end 570 of the filter construction 470. Referring now to FIG. Figure 10, in the embodiment shown, the dependent flange 651 of the frame 605 extends radially around the second end 510 of the construction of the filter 470, so that the dependent edge 651 extends towards the center the distance from the bottom surface 652 of the diagonals 610 of the second end 510 of the filter construction 4760, which defines a superimposed region 555 (Figure 15). The frame 605 can be secured to the construction of the filter 470 in a number of ways. A particularly convenient way is by securing the frame 605 for the construction of the filter 470 by adhesive. In the specific embodiment illustrated and Figure 15, the adhesive is placed in the superimposed region 555 between the frame 605 and the construction of the filter 470 as previously described herein. During the use of the arrays depicted, internal forces are exerted around the circumference of the frame 605. Internal forces exerted against the semicircular ends 511, 512 may cause the straight segments 513, 514 to bow or bend. The structure is provided as part of the frame 605 to prevent the straight segments 513, 514 from bowing. While a variety of structures are contemplated herein, in the particular embodiment illustrated in Figure 12, the diagonals 610 are provided to provide rigidity and structural support to the straight segments 513, 514. As can be seen in Figure 12, the diagonals Particular 610s shown form a reinforcement system 612 between the opposing straight segments 513, 514. The reinforcement system 612 includes a plurality of rigid columns 614, preferably molded as a single piece with the remaining portions of the frame 605. In certain preferred constructions , the frame 605 is constructed analogously to the frame 205. As such, and now referring to FIGS. 12 and 13, the frame 605 includes an end portion 663. In the preferred arrangements, the end portion 663 acts as a support ring seal In the construction depicted, the end portion 663 has the same cross-sectional configuration as the construction of the filter 470. In the particular embodiment illustrated in Figure 12, the end portion is not circular, specifically, rail-shaped. In the preferred embodiments, and with reference to the particular embodiment shown in Figure 13, between the end portions 663 and the dependent edge 651, the frame 605 includes a passage 653. The passage 653 provides a transition area between the width of cross section of the dependent edge 651 and the smaller cross section width of the end portion 663. In preferred systems, the compressible seal element 650 has analogous structure to that of the compressible seal element 250 of Figure 7. Preferably, the Set or pack of filters 450 will be installed in a duct or air cleaner housing. In certain preferred applications, the air cleaner housing will be an online accommodation. Figure 14 illustrates an air cleaner 670 having a type of in-line housing 672. In Figure 14, the housing shown is a two-piece housing that includes a cover 674 and a body member 676. The cover 674 defines a air flow inlet 678. Body member 676 defines an airflow outlet 6880. The housing further includes a pre-scrubber arrangement 679 upstream of filter set 450, such as that described in U.S. Patent Nos. 2,887,177 and 4,162,906, incorporated herein by reference. In the one depicted, the pre-scrubber arrangement is on the cover 674. The cover 674 includes a dust ejector 681 that expels dust and debris collected in the pre-scrubber 679. Figure 15 is a schematic cross-sectional view of the scrubber 670 of Figure 14 and showing the filter set 450 installed therein. The compressible seal element 650 is compressed between the side wall 660 and the end portion 663 of the frame 605. When the filter set 450 is pressurized, the compressible seal element 650 is compressed between and against the frame 605 (specifically , in the particular embodiment shown, the end portion 663) and the side wall 660. After compression, the compressible seal element 650 exerts a force against the side wall 660 when the compressible seal element 650 is tested to expand towards out to its natural state, forming a radial seal 685 with the side wall 660.

E. Systems and Methods of Operation The constructions and filter arrangements described herein are usable in a variety of systems. A particular type of system is shown schematically in Figure 16 generally at 700. In Figure 16, the equipment 702, such as a vehicle, having a motor 703 with some defined airflow demand defined, for example at least 500 cfm, and typically 700-1200 cfm is shown schematically. The equipment 702 may comprise a bus, a truck on the road, a vehicle in operation, a tractor, or marine application such as a motorized boat. The 703 engine drives the 702, through the use of a mixture of air and fuel. In Figure 16, the air flow is shown drawn on the engine 703 in an input region 705. An optional turbo 706 is shown in spectrum, when the air inlet in the engine 703 is optionally increased. An air cleaner 710 having a filter construction 712 and a secondary element 713 is upstream of the motor 703 and the turbo 706. In general, in operation, the air is represented in the arrow 714 in the air cleaner 710 and through a primary element 712 and the secondary element 713. These particles and contaminants are removed from the air. The purified air flows downstream at the arrow 716 at the inlet 705. From this, air flows to the engine 703 to power the equipment 702.

F. Change and Replacement In certain preferred applications, the games or filter packages described herein are removable and replaceable from any system in which they are installed. For example, the filter set 50, or the filter set 650, will be installed in an air cleaner housing such as that shown in Figures 9 and 15, respectively. After a certain number of hours of use, the media in the filter constructions will become occluded, and the restriction in the filter sets will increase. In preferred applications, the filter sets will be periodically replaced to maintain the proper removal of particulates from a fluid, without the introduction of a restriction too high. In some applications, the filter constructions here will include a visual indicator of useful life. Some systems may include a restriction indicator to provide information to the user regarding the appropriate time to change the game or filter pack. To serve the air cleaner arrangements described here, the user will need access to the filter set. For example, if the filter set is installed in an air cleaner housing such as those shown in Figure 9 or Figure 15, the user will open the cover of the body member, and remove the cover of the body member. This will expose an opening. The user will take advantage of the set of filters and break the radial seal formed by the set of filters against the side wall of the housing or conduit. In certain systems, the seal member and housing or conduit will be designed so that the user will need to exert a force of no more than about 36.28 kg (80 lbs), preferably not more than 22.68 kg (50 Ibs) and in some applications between 6.80 and 18.14 kg (15 and 40 lbs) to break the radial seal and remove the filter set. The user will then pull the filter set through the opening formed by the body member. The set of old filters can then be placed. In certain preferred systems, the filter set will be constructed of non-metallic materials, so that it is easily incinerable. For example, in some preferred constructions, the set of filters will comprise at least 95 percent, and typically at least 98 percent non-metallic materials. To install a new set of filters, the user takes advantage of the set of filters and inserts it through an opening in the conduit or housing. The filter set is inserted into the opening until the seal element is sufficiently compressed against the inner annular wall of the housing to form a radial seal between and against the housing wall and the end portion of the frame. The cover can then be oriented on the opposite end of the filter set to close the opening. Then the cover can be fixed to the body element.

G. Example of Construction In this section, examples of a set of operation specifications are provided. This is proposed as an example. A wide variety of alternating dimensions can be used. 1. Figures 1-8 The axial length of the filter media 100 of Figure 2 will be between about 8 cm (3 inches) and about 25 cm (10 inches), and in one example it could be about 15 cm (6 inches). The outer diameter of the filter means 100 will be between about 38 cm (3 in.) And about 38 cm (15 in.), And in one example it could be about 25 cm (10 in.).

The distance (Figure 5) to which the dependent rim 251 of the frame 205 (Figure 5) extends into the second end 110 (Figure 5) of the construction of the filter 100 will be between about 5 mm (0.2 in) and about 2.5 cm (1 in), and in an example it could be about 1.5 cm (0.6 in). The diameter of the dependent flange 251 will be between about 7 cm (3 in.) And about 38 cm (15 in.), And in one example it would be about 25 cm (about 10 in.). The diameter of the end portion 263 will be between about 6 cm (2.5 in.) And 36 cm (14 in.), And in one example would be about 24 cm (9.5 in.). The filter element will provide at least 0.4645 m2 (5 ft2) and typically 1.858-12.07 m2 (20-130 ft2), for example approximately 4.18 m2 (45 ft ") of the media surface area, it will occupy a volume no greater that approximately 0.0283 m3 (1 ft3), and typically between 849.60-14150 cm3 (0.03-0.5 ft3), and for example approximately 5664-11328 cm3 (0.2-0.4 ft3) 2. Figure 9 The diameter of the external region 330 ( Figure 9) of the first housing compartment 310 (Figure 9) will be between about 8 cm (3 in.) And about 25 cm (10 in.), And in one example it could be about 18 cm (7 in.). 9) of the inlet region 335 (Figure 9) of the second housing compartment 315 (Figure 9) will be between about 8 cm (3 in) and about 25 cm (10 in), and in one example it could be about 15 cm (5.8 in). 3. Figures 10-14 The axial length of the construction of the filter 470 will be between about 8 cm (3 inches) and about 25 cm (10 inches), and in one example it could be about 15 cm (about 6 inches). The semicircular ends 515, 512 will have a radius of between about 2.5 cm (1 in.) And about 13 cm (5 in.), And in one example have a radius of about 7 cm (2.7 in.). The straight segments 513, 514 will have a length greater than about 2.5 cm (0.1 in.), And in one example, it could be about 12 cm (4.9 inches). Preferably, the distance at which the frame 605 extending into the construction of the filter 470 will be between about 5 mm (0.2 in.) And about 2.5 cm (1 in.), And in one example would be about 1.5 cm (0.6 in.). The filter element will provide at least 0.4645 m2 (5 ft2) and typically 1858-12.07 m2 (20-130 ft2) for example, approximately 4,180 m2 (45 ft2) of the average surface area. It will occupy a volume not greater than approximately 0.0283 m3 (1 ft3) and typically between 849.60-14160 cm3 (0.03-0.5 ft3), and for example approximately 5664-11328 cm3 (0.2-0.4 ft3) H. Sample Materials In this section, examples of usable materials are provided. The particular choice for any given material will vary, depending on the filtering application. In other words, the particular material selected for the systems usable here will be decided by the system designer based on the requirements of the system. A variety of materials are possible. The following section provides examples of materials that have been found to be suitable. Means 122 may comprise cellulose. An example of media usable in the system described above is as follows: cellulose media with the following properties: a basis weight of approximately 84.7 g / m2 (45-55 lbs / 3000 ft2), for example, (48-54 lbs. / 3000 foot "); a thickness of approximately 0.0127-0.0381 cm (0.005- 0.015 in.), for example, approximately 0.25 mm (0.010 in.); frazier permeability of approximately 6.09-6.7 m / min (20-25 ft / min), for example, approximately 6.7 m / min (22 ft / min); pore size of about 55-65 microns, for example, about 62 microns; wet tensile strength of at least about 1.25 kg / cm (7 lbs / in), eg, 1.51 kg / cm (8.5 lbs / in); machine-resistant moisture of approximately 15-25 psi, for example, approximately 23 psi (159 kPa). The cellulose media can be treated with the fine fiber, for example, fibers having a size (diameter) of 5 microns or less, and in some cases, submicrons. A variety of methods can be used for the application of fine fiber to the media. Some approaches are characterized, for example, in U.S. Patent 5,423,892, column 32, on lines 48-60. More particularly, such methods are described in U.S. Patent Nos. 3,878,014; 3,676,242; 3,841,953; and 3,849,241, incorporated herein by reference. An alternative is a trade secret approach comprising a fine polymer fiber web placed on conventional media, practiced under the trade secret by the Donaldson Company under the designation ULTRA-WEB®. With respect to the configurations of the filter element and the operation of the sealing system, there is no particular preference for: how fine fibers are made; and, what particular method is used to apply the fine fibers. Although fine fiber could be applied until the resulting media construction had the following properties: initial efficiency of 99.5% on average, with no individual test lower than 90%, tested in accordance with SAE J726C, using SAE fine powder; and a total efficiency of 99.98% on average, according to SAE J726C. Frame 205 (Figure 5) will be constructed of a material that will provide structural integrity and is not entrained. The frame 205 will be constructed of a non-metallic material so that it is environmentally benign and either recyclable or easily incinerable. The frame 205 can be constructed from more plastics, for example, glass reinforced plastic. A usable reinforced plastic is propylene or nylon. Of course, other suitable materials can be used.

The compressible seal element 250 (Figure 6) can be made from a variety of materials. There is no particular preference, as long as seal element 250 forms a seal at the appropriate location under compression. A usable material will be a soft polymeric material, such as urethane in the form of foam. An example of usable material includes foamed polyurethane, processed to a final product that has a density "when molded" from 224.59 to 352.93 kg per cubic meter (fourteen to twenty-two pounds per cubic foot). Foamed polyurethanes are available from a variety of sources, such as BASF Corporation of Wyandotte, Michigan. An example of a foamed polyurethane comprises a material made with I35453R resin and I3050U isocyanate, which is sold exclusively to the Donaldson transferee by BASF Corporation. The materials sold are mixed in a mixing ratio of 100 parts of resin 135453 to 36.2 parts of isocyanate I305OU (by weight). The specific gravity of the resin is 1.04 (1.03 kg / 1 (8.7 pounds / gallon)), and for the isocyanate it is 1.20 (1.19 kg / 1 (10 pounds / gallon)). The materials are typically mixed with a highly dynamic shear mixer. Component temperatures would be 21.1 to 35 degrees Celsius (seventy to ninety-five degrees Fahrenheit). Mold temperatures should be 46.1-57.2 degrees Celsius (115-135 degrees Fahrenheit). Resin material I35453R has the following description: (a) Average molecular weight 1) Polyether polyol base = 500-15,000 2) Diols = 60-10,000 3) Trioles = 500-15,000 (b) Average functionality 1) Total system = 1.5-3.2 (c) hydroxyl number 1) total systems = 100-300 (d) Catalysts 1) Amine = Air Products 0.1-3.0 PPH 2) Tin = Witco 0.01-0.5 PPH (e) Surfactants 1) Total system = 0.1 -2.0 PPH (f) Water 1) total system = 0.03-3.0 PPH (g) Pigments / dyes 1) total system = 1.5% carbon black (h) blowing agent 1) 0.1-6.0% HFC 134A.

The description of isocyanate I3050U is as follows: (a) NCO content = 22.4-23.4% by weight (b) viscosity, cps at 25 ° C = 600-800 (c) density = 1.21 g / cm3 at 25 ° C ( d) initial boiling point = 190 ° C to 5 mm Hg (e) Vapor Pressure = 0.0002 Hg at 25 ° C (f) Appearance = colorless liquid (g) Flash point (Densky-Martins closed cuvette) = 200 ° C The above is a complete description of principles of the invention. Many modalities can be done in accordance with the principles of this description. It is noted that in relation to this date, the best method known to the applicant to carry out the aforementioned invention, is that which is clear from the present description of the invention.

Claims (12)

1. CLAIMS Having described the invention as above, the content of the following claims is claimed as property: 1. An arrangement of the filter element for use in an air cleaner housing having an internal annular sealing surface, the arrangement of the filter element it is removable and replaceable within the housing of the air cleaner after the relative axial movement between the arrangement of the filter element and the internal annular sealing surface of the housing; the arrangement of the filter element is characterized in that it comprises: (a) a rolled media construction comprising a corrugation sheet secured to a lower surface sheet and configured in a roll; (i) the construction of rolled media having: first and second ends; a first flow surface at the first end; and a second flow surface at the second end; (ii) the means within the construction of rolled media forming a plurality of grooves; each of the grooves has a first end positioned adjacent to the first flow surface and a second end positioned adjacent the second flow surface; (A) a first set of selected grooves that open at the first end and close at the second end; Y (B) a second set of selected grooves that close at the first end and open at the second end; (b) a sealing system that includes a frame construction and a seal element; (i) the construction of the frame including an extension projecting axially from one of the first and second flow surfaces; (A) the extension of the frame construction having an outer circumferential surface; (B) the extension of the frame construction which is an annular sealing support for the seal element; (ii) the seal element that is placed on, and that is supported by, the extent of the construction of the frame; A) at least a portion of the seal element that is positioned in and around the periphery of the outer circumferential surface of the extension; B) the seal member including a peripheral, outwardly directed sealing surface, the peripheral sealing surface of the seal member is oriented to form a peripherally directed, releasable seal between the arrangement of the filter element and an annular sealing surface , internal, housing, as a result of the axial insertion of the arrangement of the filter element in the housing of the air cleaner, by compression of the seal element between and against the ring sealing support of the extension and the annular sealing surface , internal of the accommodation.
2. 2. An arrangement of the filter element according to claim 1, characterized in that: (a) the construction of rolled media has a cross section that includes a pair of curved ends joined by a pair of straight segments.
3. 3. An arrangement of the filter element according to claim 2, characterized in that: (a) the extension of the frame construction includes a pair of curved ends joined by a pair of straight segments.
4. 4. An arrangement of the filter element according to any of claims 1-3, characterized in that: (a) the construction of the frame radially includes support diagonals.
5. An array of the filter element according to any of claims 1-4, characterized in that: (a) the peripheral surface, directed outwardly of the seal element defines a cross section configuration of steps that increase from one end end of the extension towards a flange element.
6. 6. An arrangement of the filter element according to any of claims 1-5, characterized in that: (a) the outer circumferential surface of the construction extension of the frame is continuous and uninterrupted.
7. 7. An arrangement of the filter element according to any of claims 1-6, characterized in that: (a) the construction extension of the frame includes a final end; an external surface, and an opposite internal surface; and (b) the seal element includes: a first portion that is oriented against the external surface of the extension; a second portion oriented against the final end; and a third portion oriented against the inner surface.
8. 8. An arrangement of the filter element according to any of claims 1-7, characterized in that it is operably installed in a housing of the air cleaner of a motor having a proportioned air flow of at least 500 cfm through the filter element arrangement.
9. 9. An arrangement of the filter element operably installed according to claim 8, characterized in that: (a) the seal element is compressed at least 15% between the extension of the framework construction and an annular sealing surface of the filter housing air.
10. 10. An arrangement of the filter element according to any of claims 1-9, characterized in that: (a) the seal element comprises the compressible polyurethane foam.
11. 11. A method for servicing an air cleaner having a housing with an internal annular sealing surface; the method is characterized in that it includes a step of: (a) axially inserting an array of the filter element according to any of claims 1-7 into the housing.
12. 12. A method for constructing an array of the filter element of the type characterized in any of claims 1-7; The method is characterized in that it comprises the steps of: (a) cleaning a sealing system including a frame construction and a seal element at one end of a rolled media construction according to claim 1 (a).