Filter element end plates oriented on the head within the filter

Abstract

The filtration system includes a filter head and a filter cartridge. The filter head includes a filter head body defining a valve port and ribs extending away from the filter head body. The filter cartridge includes a filter element and a first end plate coupled to a first end of the filter element. The first end plate includes a first end plate end wall and a valve assembly extending axially away from the end plate end wall and toward the filter head. The valve assembly includes a valve and a valve assembly body defining one or more flow channels. The one or more flow channels enable fluid communication between the valve port and the internal volume of the filtration system via the valve.

Description

Technical Field

[0001] The present application generally relates to a filtration system for use in supplying a filtered fluid to a downstream device.

Background Art

[0002] A filtration system can be used to separate contaminants from a fluid and protect a downstream device from damage (e.g., corrosion, blockage, etc.). For example, a filtration system can protect a downstream device by including a filter element for separating contaminants that can damage the downstream device from the fluid. The filtration system can be primed to reduce the amount of air entrained within the filtration system.

Summary of the Invention

Means for Solving the Problems

[0003] Various embodiments provide a filtration system. The filter head includes a filter head body defining a valve port and a rib extending away from the filter head body. The filter cartridge includes a shell and a filter element coupled to the shell, the filter element including a filter medium and a first end plate coupled to a first end of the filter medium. The first end plate includes a first end plate end wall and a valve assembly extending axially away from the end plate end wall and toward the filter head. The valve assembly includes a valve and a valve assembly body defining one or more flow channels. The one or more flow channels enable fluid communication between the valve port and the inner volume of the filtration system via the valve.

[0004] Various other embodiments provide a filter cartridge comprising a shell and a filter element positioned within the shell. The filter element comprises a filter medium and a first end plate coupled to a first end of the filter medium. The first end plate comprises a first end plate end wall and a valve assembly extending axially toward the filter head, away from the end plate end wall. The valve assembly comprises a valve and a valve assembly body defining one or more flow channels. The one or more flow channels enable fluid communication between the valve port and the internal volume of the filtration system via the valve.

[0005] Various other embodiments provide a method for assembling a filtration system. The method includes aligning a filter cartridge with a filter head having a filter head body that defines a valve port and ribs such that a portion of the filter cartridge contacts the ribs. The ribs guide a portion of the filter cartridge toward the valve port when the portion of the filter cartridge contacts the ribs.

[0006] These and other features, along with the organization and manner of their operation, will become apparent from the following detailed description when considered in conjunction with the attached drawings, where similar elements have similar figures throughout several drawings described below. [Brief explanation of the drawing]

[0007] [Figure 1] Figure 1 is a front view of a filtration system according to an exemplary embodiment.

[0008] [Figure 2] Figure 2 is a cross-sectional view of the filtration system shown in Figure 1.

[0009] [Figure 3] Figure 3 is a perspective view of the filtration system shown in Figure 1, in its decomposed state.

[0010] [Figure 4] Figure 4 is a top view of the first end plate for use within the filtration system of FIG. 1.

[0011] [Figure 5] Figure 5 is a bottom view of the first end plate of FIG. 4.

[0012] [Figure 6] Figure 6 is a top view of the second end plate for use within the filtration system of FIG. 1.

[0013] [Figure 7] Figure 7 is a bottom view of the second end plate of FIG. 6.

[0014] [Figure 8] Figure 8 is a front view of the filter head for use within the filtration system of FIG. 1.

[0015] [Figure 9] Figure 9 is a rear view of the filter head of FIG. 8.

[0016] [Figure 10] Figure 10 is a perspective view of the filter head of FIG. 8.

[0017] [Figure 11] Figure 11 is a side cross-sectional view of the filter head of FIG. 8.

[0018] [Figure 12] Figure 12 is a bottom view of the filter head of FIG. 8.

[0019] [Figure 13] Figure 13 is a cross-sectional view of the filtration system of FIG. 1.

Mode for Carrying Out the Invention

[0020] Detailed Description Generally, referring to the drawings, the various embodiments disclosed herein relate to filtration systems. The filtration systems include improved filter elements and filter head arrangements that can advantageously mitigate (e.g., reduce) the reverse flow of fluid through the filtration system during priming. The embodiments shown and described in further detail herein relate to external inlet designs for filtration systems. It should be understood that the embodiments described herein may also be applicable to other filtration system arrangements. For example, the embodiments described herein may also be applicable to internal outlet designs and / or any other type of filtration system. In addition, filtration systems may include more or fewer components than those shown in the figures. Therefore, references to various components in the middle, downstream, external, upstream, etc., are to the embodiments shown in the figures, and it should be understood that other embodiments, such as internal outlet designs for filtration systems, may have the same or similar components provided in different arrangements.

[0021] Referring here to Figure 1-3, various diagrams of the filtration system 100 according to an exemplary embodiment are shown. The filtration system 100 is configured to receive an unfiltered fluid (e.g., fuel, petroleum, etc.), filter the fluid, and provide the filtered fluid to a downstream device such as an engine. As shown, the filtration system 100 includes a filter head 110 and a filter cartridge 150. The filter cartridge 150 is configured to be coupled to the filter head 110. An additional diagram of the filter head 110 is shown in Figure 8-12. It should be understood that the filtration system 100 may include more or fewer components than those shown in Figure 1-3.

[0022] The filter head 110 includes a filter head body 112. The filter head 110 includes a first filter head seal surface 114. The first filter head seal surface 114 is defined on the inner surface of the filter head body 112. The first filter head seal surface 114 is positioned on or directed toward the filter cartridge 150.

[0023] The filter head 110 includes a second filter head seal surface 116. The second filter head seal surface 116 is defined on the inner surface of the filter head body 112. The second filter head seal surface 116 is positioned on or directed toward the filter cartridge 150. The second filter head seal surface 116 is spaced apart from the first filter head seal surface in the axial direction.

[0024] The filter head 110 includes one or more filter head threads 118. The one or more filter head threads 118 are located on the outer surface of the filter head body 112 and extend away from the filter head body 112 (for example, outward from there).

[0025] The filter head 110 includes a radial flange 119 extending outward from the outer surface of the filter head body 112. The radial flange 119 is positioned axially above one or more filter head threads 118 and axially below the filter head seal surface 114. The first filter head seal surface 114 is positioned axially above the radial flange 119. The second filter head seal surface 116 is positioned axially below the radial flange 119.

[0026] The filter head body 112 defines a first port 120 and a second port 122. The first port 120 is an inlet port that communicates with an upstream device for fluid reception and with the inside of the filtration system 100 for fluid supply. The second port 122 is an outlet port that communicates with the inside of the filtration system 100 for fluid reception and with a downstream device such as an engine for fluid supply. In some embodiments, the first port 120 may be an outlet port and the second port 122 may be an inlet port.

[0027] The filter head body 112 defines a valve port 124. The valve port 124 communicates with the inside of the filtration system 100 for fluid reception and with the second port 122 for fluid supply. The valve port 124 defines a valve port seal surface 126.

[0028] The filter head body 112 defines the filter head opening 128. The filter head opening 128 extends through the filter head body 112. The filter head opening 128 is centered on the central axis 129. The central axis 129 extends through the radial center of the filtration system 100, the center of the filter head 110, the center of the filter cartridge 150, and / or the center of the filter element 200.

[0029] The filter head 110 includes ribs 130. The ribs 130 are located on the inner surface of the filter head body 130 and extend axially away from the filter head body 112. The ribs 130 are located on or directed toward the filter cartridge 150. The ribs 130 extend around the filter head opening 128 (for example, radially outward).

[0030] As shown in Figure 12, the rib 130 has a substantially circular cross-sectional shape. The circular cross-sectional shape of the rib 130 is intersected by the valve port 124. As shown in Figure 11, the bottom surface 132 of the rib 130 extends along a rib axis 134 that is angled with respect to the central axis 129 at a non-zero angle. The bottom surface 132 of the rib 130 is angled such that the first end 136 of the rib 130 extends further from the filter head body 112 than the second end 138 of the rib 130. The first end 136 of the rib 130 is positioned opposite the second end 138 of the rib 130. The second end 138 of the rib 130 is positioned close to the valve port 124. The shape of the rib 130 favorably guides the surface for the filter cartridge 150 when the filter cartridge is coupled to the filter head.

[0031] It should be understood that in other embodiments, the filter head 110 may have a different design or configuration than that shown in Figure 1.

[0032] The filtration system 100 also includes a pump 140. The pump 140 is located within the filter head opening 128. That is, the filter head opening 128 has sides that receive the pump 145 into it. The pump 140 is configured to create a pressure difference within the filtration system 100, thereby drawing fluid into the outer inflow configuration.

[0033] The filter cartridge 150 includes a shell 152 and a filter element 200. The shell 152 defines an internal volume 154, at least partially. The filter head 110 defines an internal volume 154, at least partially. The filter element 200 is positioned at least partially within the internal volume 154 such that the filter element 200 is located within the filter head 110 and the shell 152.

[0034] The shell 152 includes a shell wall 156. The shell 152 includes a shell flange 158. The shell flange 157 extends radially outward from the shell wall 156.

[0035] The shell 152 includes a first shell seal surface 160. The first shell seal surface 160 is located at the first end of the shell 150 and is oriented toward the filter head 110. The first shell seal surface 160 is axially positioned on the outer surface of the shell wall 156 and above the shell flange 158. More specifically, the first shell seal surface 160 is defined by the outer surface of the shell wall 156 and the upper surface of the shell flange 158.

[0036] The shell 152 includes a second shell seal surface 162. The second shell seal surface 162 is located at the second end of the shell 150 opposite the first end and is directed toward the filter head 110. The second shell seal surface 162 is located on the inner surface of the shell wall 156.

[0037] The filter cartridge 150 includes a first sealing member 164 (e.g., an O-ring, a gasket, etc.). The first sealing member 164 is positioned between the shell 152 and the filter head 110. The first sealing member 164 engages with the second filter head sealing surface 116 and the first shell sealing surface 160, forming a first radially oriented sealing portion between them. The first sealing member 164 substantially prevents fluid from flowing between the filter head 110 and the shell 152 at the second filter head sealing surface 116 and the first shell sealing surface 160.

[0038] The filtration system 100 includes a collar 170. The collar includes a collar body 172 and one or more collar threads 174. The collar threads 174 are located on the inner surface of the collar body 172. The collar threads 174 enable the coupling of the collar 170 to the filter head 110. As shown in Figure 2, the collar threads 174 are inward-facing threads constructed to engage with outward-facing filter head threads 118.

[0039] The collar 170 includes a collar flange 176. The collar flange 176 extends radially inward from the collar body 172. The collar flange 176 contacts and / or engages with the shell flange 158 when the collar 170 is coupled to the filter head 110. In this way, the collar 170 couples the filter cartridge 150 to the filter head 110.

[0040] The filter element 200 is configured to filter the fluid (for example, by removing contaminants). In some embodiments, the filter element 200 is removably coupled to the shell 152. In other embodiments, the filter element 200 is permanently fixed within the shell 152 so that it cannot be removed from the shell 152 without causing damage to the filter element 200 and / or the shell 152. The filter element 200 is at least partially contained within the shell 152 and / or the filter head 110.

[0041] As shown, the filter element 200 includes a first end plate 210, a second end plate 250, a filter medium 260, and a central tube 264. The filter element 200 also includes a second sealing member 266 (e.g., an O-ring, a gasket, etc.) and a third sealing member 268.

[0042] The filter medium 260 is positioned between the first end plate 210 and the second end plate 250 and bonded to them. The filter medium 260 is formed in a cylindrical or annular configuration. The filter medium 260 may be pleated to increase its surface area. The filter medium 260 may be a single-layer or multi-layer medium made from at least one of woven fibers, non-woven materials, wet-soaked materials, polymer materials, glass materials, cellulose materials, and / or other suitable materials. The filter medium 260 is constructed to allow an unfiltered fluid to be filtered by flowing through the filter medium 260. For example, an unfiltered fluid flows through the filter medium 260, and the filter medium 260 removes impurities such as particulate matter, organic matter, and equivalents from the unfiltered fluid as it passes through the filter medium 260. The impurities are captured by the filter medium 260. The outer volume 202 is defined between the filter medium 260 and the shell 152. The internal volume 204 is defined within the filter medium 260.

[0043] In some embodiments, as shown in Figure 3, the filter element 200 includes a wrap-around layer 262. The wrap-around layer 262 is positioned around at least a portion of the filter medium 260. The wrap-around layer 262 substantially prevents the fluid from flowing through it. The wrap-around layer 262 is positioned at or near the first port 120 such that the fluid entering the filtration system at the first port 120 flows into the outer volume 202 and into the wrap-around layer 262. In this way, the wrap-around layer 262 substantially prevents the fluid from flowing through the filter medium 260 when it first enters the outer volume 202. Advantageously, the wrap-around layer 262 reduces the degradation of the filter medium 260 caused by the fluid flowing into it.

[0044] The first end plate 210 is fixedly coupled to the filter medium 230. More specifically, the first end plate 210 is coupled to the filter medium 230 at the first end of the filter medium. The first end plate 210 includes a first end plate end wall 212 and a first end plate sealing surface 214. Additional diagrams of the first end plate 210 are shown in Figures 4 and 5.

[0045] The first end plate seal surface 214 extends axially away from the surface of the first end plate end wall 212. More specifically, the first end plate seal surface 214 extends axially away from the upper surface of the first end plate end wall 212. The first end plate seal surface 214 is located on the outer periphery of the first end plate end wall 212 and is directed toward the filter head 110. The first end plate seal surface 214 is located in close proximity to the first filter head seal surface 114.

[0046] As shown in Figure 2, the first end plate seal surface 214 is a channel that extends axially away from the upper surface of the first end plate end wall 212. The channel defines an open end that is radially outward and directed toward the filter head 110. The first end plate seal surface 214 (e.g., the channel) is sized to receive the second seal member 266. The first end plate seal surface 214 supports the seal member 266. The second seal member 266 engages with the first filter head seal surface 114 and the first end plate seal surface 214, forming a radially directed seal between them. The seal substantially prevents fluid from flowing between the filter head 110 and the first end plate 210.

[0047] The first end plate end wall 212 defines a first opening 216. The first opening 216 is sized to receive at least a portion of the pump 140 through it. As shown in Figure 2, the first opening 216 extends through the center of the first end plate end wall 212 (for example, centered on the central axis 129). The pump 140 is centered on the central axis 129.

[0048] As shown in Figure 5, the first end plate 210 includes a first channel 218 located on the bottom side of the first end plate end wall 212. The first channel 218 is constructed to receive a portion of the filter element 260.

[0049] The first end plate 210 includes a valve assembly 220. The valve assembly 220 is positioned on the surface of the first end plate end wall 212 and extends axially away from the first end plate end wall 212. The valve assembly 220 is positioned on the first side of the first end plate end wall 212 such that the valve assembly 220 is positioned radially away from the first opening 216. That is, the valve assembly 220 is radially offset from the central axis 129.

[0050] As shown in Figure 4, the valve assembly 220 includes a valve assembly body 222, a valve assembly seal surface 226, and a valve 228 (e.g., a check valve, a one-way valve, etc.). When the filter cartridge 150 is coupled to the filter head 110, the valve assembly 220 is positioned at least partially within the valve port 124.

[0051] The valve assembly body 222 extends axially toward the filter head 110, away from the first end plate end wall 212. More specifically, the valve assembly body 222 extends toward the valve port 124 such that at least a portion of the valve assembly body 222 is located within the valve port 124. The valve assembly body 222 defines one or more fluid channels 224. For example, as shown in Figures 4 and 5, the valve assembly body 222 includes one or more walls between which define the fluid channels 224. The fluid channels 224 allow fluid communication between the internal volume 204 and the valve 228. As shown in Figures 4 and 5, the fluid channels 224 extend through the valve assembly body 222.

[0052] The valve assembly seal surface 226 extends around the periphery of the valve assembly body 222. The valve assembly seal surface 226 extends axially away from the upper surface of the valve assembly body 222 and is oriented toward the valve port 124. The valve assembly seal surface 226 is positioned in close proximity to the valve port seal surface 126.

[0053] As shown in Figure 4, the valve assembly seal surface 226 is a channel that extends axially away from the upper surface of the valve assembly body 222. The channel defines an open end that is radially outward and directed toward the valve port 124. The valve assembly seal surface 226 (e.g., the channel) is sized to receive the fourth seal member 230. The valve assembly seal surface 226 supports the fourth seal member 230. The fourth seal member 230 engages with the valve port seal surface 126 and the valve assembly seal surface 226, forming a radially directed seal between them. The seal substantially prevents fluid from flowing between the valve assembly 220 and the valve port 124.

[0054] The valve 228 is coupled to the valve assembly body 222. The valve 228 selectively allows fluid communication between the internal volume 204 and the second port 122. More specifically, the valve 228 selectively allows fluid communication between the internal volume 204 and the second port 122 via the flow channel 224 and the valve port 124. In some embodiments, the valve 228 is a check valve or a one-way valve, which allows fluid to flow from the internal volume 204 to the second port 122 and substantially prevents fluid from flowing from the second port 122 to the internal volume 204. However, in other embodiments, such as an external inflow configuration, it should be understood that the valve 228 may allow fluid to flow from the second port 122 to the internal volume 204 and substantially prevent fluid from flowing from the internal volume 204 to the second port 122.

[0055] The second end plate 250 is fixedly coupled to the filter medium 230. More specifically, the second end plate 250 is coupled to the filter medium 230 at the second end of the filter medium opposite the first end. The second end plate 250 includes a second end plate end wall 252 and a second end plate sealing surface 254. Additional illustrations of the second end plate 250 are shown in Figures 6 and 7.

[0056] The second end plate seal surface 254 extends axially away from the surface of the second end plate end wall 252. More specifically, the second end plate seal surface 254 extends axially away from the bottom surface of the second end plate end wall 252. The second end plate seal surface 254 is located on the outer periphery of the second end plate end wall 252 and is directed toward the shell 152. The second end plate seal surface 254 is located in close proximity to the second shell seal surface 162.

[0057] As shown in Figure 2, the second end plate seal surface 254 is a channel that extends axially away from the bottom surface of the second end plate end wall 252. The channel defines an open end that is radially outward and directed toward the shell 152. The second end plate seal surface 254 (e.g., the channel) is sized to receive the third seal member 268. The first end plate seal surface 254 supports the seal member 268. The third seal member 268 engages with the second shell seal surface 162 and the second end plate seal surface 254, forming a radially directed seal between them. The seal substantially prevents fluid from flowing between the shell 152 and the second end plate 250.

[0058] The end wall 252 of the second end plate defines a second opening 256. The second opening 256 allows fluid communication between the internal volume 204 and the bottom portion of the shell 152.

[0059] As shown in Figure 6, the second end plate 250 includes a second channel 258 located on the upper side of the second end plate end wall 252. The second channel 258 is constructed to receive a portion of the filter element 260.

[0060] The central tube 264 is positioned within the filter medium 260. The central tube 264 is a hollow tube that at least partially defines the internal volume 204. The central tube 264 includes one or more holes through its walls that allow fluid to pass through. In some embodiments, the central tube 264 is fixedly coupled to the first end plate 210, the second end plate 250, and / or the filter medium 260. In other embodiments, the central tube 264 is positioned within the filter medium 260 without being coupled to the filter medium 260. In these embodiments, the central tube 264 may come into contact with the filter medium 260 during operation. For example, the filter medium 260 may bend or deflect inward toward the central tube 264. In some embodiments, the central tube 264 is held between the first end plate 210 and the second end plate 250, with or without being coupled to the first end plate 210 and / or the second end plate 250.

[0061] In some embodiments, the filter element 200 includes a fusion medium layer (not shown) radially positioned inside the filter medium 260. The fusion medium layer is configured to fuse and separate water introduced into the fluid.

[0062] Figure 13 is a detailed cross-sectional view showing a side view of the filtration system 100 of Figure 1. The filtration system 100 is shown in Figure 13 without the pump 140.

[0063] In an exemplary embodiment, a method for assembling the filtration system 100 includes providing a filter head 110 and a filter cartridge 150. The method also includes aligning the filter cartridge 150 with the filter head 110 such that a portion of the filter cartridge 150 contacts a rib 130. The rib 130 is positioned at a non-zero angle with respect to the central axis of the filtration system 100 such that when a portion of the filter cartridge 150 contacts the rib 130, the rib 130 guides the portion of the filter cartridge toward the valve port 124.

[0064] In some embodiments, a valve assembly 220 extending axially toward the filter head 110 is part of the filter cartridge 150 that contacts a rib 130. In this way, the rib 130 guides the valve assembly 220 toward the valve port 124. In some embodiments, the valve assembly 220 is received, at least partially, within the valve port 124.

[0065] In some embodiments, the collar 170 is coupled to the filter head 110 (e.g., screw-connected) and the collar flange 176 engages with a portion of the filter cartridge 150 (e.g., shell flange 158), thereby coupling the filter cartridge 150 to the filter head 110.

[0066] It should be noted that the term “example” as used herein to describe various embodiments is intended to indicate that such embodiments are possible examples, representations, and / or illustrations of possible embodiments (and is not intended to imply that such embodiments are necessarily exceptional or unparalleled examples).

[0067] As used herein, the terms “substantially” and similar terms are intended to have a broad meaning consistent with the general and acceptable usage of those skilled in the art relating to the subject matter of this disclosure. Those skilled in the art examining this disclosure should understand that these terms are intended to enable the description of certain features described and claimed without limiting the scope of those features to the precise numerical ranges, relationships, or descriptions provided. These terms should be interpreted as indicating that any substantive or insignificant modifications or alterations of the subject matter described and claimed are considered to be within the scope of this disclosure as enumerated in the appended claims. The terms “coupled,” “attached,” and equivalents, as used herein, mean the direct joining of two members to one another. Such a joining may be permanent (e.g., permanent) or movable (e.g., removable or detachable).

[0068] In this specification, references to the position of elements (e.g., “top,” “bottom,” “above,” “below,” etc.) are used simply to describe the orientation of various elements in the figures. It should be noted that the orientation of various elements may differ according to other exemplary embodiments, and such variations are intended to be covered by this disclosure.

[0069] It is important to note that the construction and arrangement of various exemplary embodiments are merely illustrative. While only a few embodiments are described in detail in this disclosure, a person skilled in the art who examines this disclosure will readily understand that many modifications (e.g., variations in the size, dimensions, structure, shape, and proportions of various elements, various parameters, mounting arrangements, use of materials, color, orientation, etc.) are possible without substantially departing from the novel teachings and merits of the subject matter described herein. For example, elements shown as integrally formed may be constructed from multiple parts or elements, the positions of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be modified or varied. The order or sequence of any process or method steps may also be varied or rearranged according to alternative embodiments. Other alternative, modified, altered, and abbreviated forms may also be made in the design, operating conditions, and arrangement of various exemplary embodiments without departing from the scope of the concepts presented herein.

[0070] This specification contains many specific implementation details, which should be interpreted not as limitations on the scope of any invention or claim, but rather as descriptions of features specific to a particular implementation of a particular invention. Certain features described herein in the context of separate implementations may also be implemented in combination in a single implementation. Conversely, various features described in the context of a single implementation may also be implemented separately in multiple implementations or in any preferred secondary combination. Furthermore, features described above as acting in a combination, and even initially claimed as such, may, in some cases, be removed from the claimed combination, and the claimed combination may be a secondary combination or a variation of a secondary combination.

Claims

1. A filtration system, wherein the filtration system is A filter head, wherein the filter head is The filter head body defines the valve port, Ribs extending away from the filter head body and A filter head equipped with, filter cartridge and Equipped with, The aforementioned filter cartridge is Shell and, The filter element to which the shell is joined Equipped with, The filter element comprises a filter medium and a first end plate coupled to a first end of the filter medium. The first end plate is, The first end plate end wall, A valve assembly extending axially toward the filter head, away from the end wall of the end plate, Equipped with, The valve assembly is valve and, A valve assembly body defining one or more flow channels, wherein the one or more flow channels enable fluid communication between the valve port and the internal volume of the filtration system via the valve body and A filtration system equipped with the following features.

2. The filtration system according to claim 1, wherein the ribs extend along the rib axis, and the rib axis is at a non-zero angle with respect to the central axis of the filtration system.

3. The filtration system according to claim 1 or 2, wherein the valve assembly comprises a valve assembly seal surface extending around the periphery of the valve assembly body and extending toward the valve port, the valve assembly seal surface being sized to receive the seal member such that the seal member forms a radial seal between the valve assembly and the valve port.

4. The filtration system according to claim 1 or 2, wherein the first end plate has a first end plate sealing surface that extends axially away from the end wall of the first end plate and is directed toward the filter head, and the first end plate sealing surface is sized to receive a sealing member such that the sealing member forms a radial seal between the filter head and the first end plate.

5. The shell defines the first shell seal surface, The filter head body defines the filter head seal surface, The filtration system further comprises a first sealing member, the first sealing member configured to engage the first shell seal surface and the filter head seal surface so as to form a first sealing portion between the first shell seal surface and the filter head seal surface. A filtration system according to claim 1 or claim 2.

6. The filtration system according to claim 5, wherein the filter cartridge further comprises a second end plate, the second end plate comprising a second end plate end wall and a second end plate sealing surface, the second end plate sealing surface being arranged on the outer periphery of the second end plate end wall and directed toward the shell, and configured to receive the second sealing member therein such that the second sealing member forms a sealing portion between the second end plate sealing surface and the shell.

7. The filtration system according to any one of claims 1, 2, or 6, wherein the valve assembly is radially offset from the central axis of the filtration system.

8. The aforementioned filter head further, A first port that communicates with the upstream device for fluid reception and with the inside of the filtration system for fluid supply, A second port that communicates with the interior of the filtration system for fluid receiving and with a downstream device for fluid supply. A filtration system according to any one of claims 1, 2, or 6, comprising:

9. The filtration system according to claim 8, wherein the valve port communicates with the interior of the filtration system for receiving fluid and with the second port for supplying fluid.

10. The filtration system according to claim 8, further comprising a winding layer positioned around a portion of the filter medium and adjacent to the first port, wherein the winding layer substantially prevents the fluid from flowing through the winding layer.

11. A filter cartridge, wherein the filter cartridge is Shell and, Filter elements and Equipped with, The filter element is located within the shell, Filter medium and A first end plate coupled to the first end of the filter medium and Equipped with, The first end plate is, The first end plate end wall, A valve assembly extending axially toward the filter head, away from the end wall of the end plate, Equipped with, The valve assembly is valve and, A valve assembly body defining one or more flow channels, wherein the one or more flow channels enable fluid communication between the valve port and the internal volume of the filtration system via the valve body and A filter cartridge equipped with this feature.

12. The filter cartridge according to claim 11, wherein the valve assembly comprises a valve assembly seal surface extending around the periphery of the valve assembly body, and the valve assembly seal surface is sized to receive a seal member such that the seal member engages with the valve assembly.

13. The filter cartridge according to claim 12, wherein the valve assembly seal surface comprises a channel that extends axially away from the upper surface of the valve assembly body and defines an open end that is radially directed outward, and the channel is sized to receive the seal member therein.

14. The filter cartridge according to any one of claims 11-13, wherein the first end plate extends axially away from the end wall of the first end plate and comprises a first end plate sealing surface directed toward the filter head, the first sealing surface being sized to receive the sealing member such that the sealing member forms a radial seal between the filter head and the first end plate.

15. The filter cartridge according to claim 14, wherein the first end plate seal surface comprises a channel extending axially away from the upper surface of the first end plate end wall, the channel defining an open end radially outward and sized to receive the sealing member.

16. The filter cartridge according to any one of claims 11-13 and 15, wherein the filter cartridge comprises a second end plate end wall and a second end plate seal surface, the second end plate seal surface being positioned on the outer periphery of the second end plate end wall and directed toward the shell, and configured to receive a seal member therein such that the seal member forms a seal portion between the second end plate seal surface and the shell.

17. The filter cartridge according to claim 16, wherein the second end plate seal surface comprises a channel extending axially away from the bottom surface of the second end plate end wall, the channel defining an open end radially outward toward the shell and sized to receive the sealing member.

18. The filter cartridge according to any one of claims 11-13, 15, or 17, wherein the valve assembly is radially offset from the central axis of the filter cartridge.

19. A method for assembling a filtration system, wherein the method is A method for aligning a filter cartridge with a filter head having a filter head body that defines a valve port and the rib, such that a portion of the filter cartridge contacts the rib, wherein the rib guides the portion of the filter cartridge toward the valve port when the portion of the filter cartridge contacts the rib.

20. The method according to claim 19, further comprising coupling a collar to the filter head such that the collar flange engages with a portion of the filter cartridge and the filter cartridge is coupled to the filter head.

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