Abstract: A filter element includes a cylindrical housing enclosing a ring-shaped filter media assembly. The media assembly includes inner and outer media rings, moveably supported relative to one another, to remove particulate matter and water from a fluid stream. The outer ring surrounds the inner ring and is sealed by a first seal to the housing. An end cap assembly at the upper end of the element includes an annular end cap piece attached to an upper end of the inner ring, a flat plate, and a threaded flange portion bounding the periphery of the plate. A second seal is provided between the upper end cap of the inner ring, and an upper end cap of the outer ring. The housing is secured to the media assembly by forming an open end of the housing around the flange portion.

Abstract: A filter element includes a cylindrical housing enclosing a ring-shaped filter media assembly. The media assembly includes inner and outer media rings, moveably supported relative to one another, to remove particulate matter and water from a fluid stream. The outer ring surrounds the inner ring and is sealed by a first seal to the housing. An end cap assembly at the upper end of the element includes an annular end cap piece attached to an upper end of the inner ring, a flat plate, and a threaded flange portion bounding the periphery of the plate. A second seal is provided between the upper end cap of the inner ring, and an upper end cap of the outer ring. The housing is secured to the media assembly by forming an open end of the housing around the flange portion.

Abstract: Disclosed herein is an engine fuel filter containing a filter medium of a filtering mass of a nanoweb preferably situated between two scrims. The scrims can be nonwoven webs and the filtering mass is located in an enclosure so as to be crossed by the fuel in its path inside the filter. The nanoweb has a basis weight between about 1.5 gsm and about 40 gsm, and can be in face-to-face and fluid contact with either or both of the upstream and downstream scrims. The nanoweb does not contain glass.

Abstract: A fuel filter includes a housing (412) with a removable element (424) mounted therein. The housing has an inlet port (414) in direct fluid communication with a chamber (418). A first outlet port (416) is in direct fluid communication with a central standpipe (422). The standpipe has a flow element (442) movable therein for controlling the condition of flow openings (436) in the standpipe. The cover further includes a cover projection (482) for supporting a projection (478) on the end cap (460) of the filter element, which opens flow into the standpipe only when the element is installed. The removable element can include first and second filter media rings (426, 716) where fluid is introduced between the rings and flows radially inward through the first media to the first outlet port (416), and radially outward through the second media ring to a second outlet port (710).

Abstract: A filter assembly includes a replaceable filter element disposed within a filter housing. The housing includes a removable cover, and a fitting including an internal central conduit extending along the central axis of the housing. The central conduit is bisected along its length and has a pair of flow channels connected to a pair of ports in the fitting. Another port is provided in the fitting and a still further port is provided in the housing. The filter element includes a first circular imperforate end cap, and a second annular imperforate end cap dimensioned to receive the central conduit. First and second filter media loops are supported between the first and second end caps. An imperforate cylindrical wall is radially disposed between the first and second filter media loops. Annular seals are provided around the opening in the second end cap, at the inner end of the first filter media loop, and at the inner end of the cylindrical wall.

Abstract: A fuel filter comprises a head (96) having an inlet (100) and an outlet (102). The head is connected to an element (266) by a nipple portion (186) which has a valve element (196) therein. An actuating projection (222, 272) is engageable with the valve element to open flow through said nipple portion when the correct element is attached thereto. The actuating projection is further supported on a central portion (220, 276) which prevents connection to a nipple portion that extends too far into the element. According to a further embodiment, the filter includes a housing (412) with a removable element (424) mounted therein. The housing has an inlet port (414) in direct fluid communication with a chamber (418). The outlet port (416) is in direct fluid communication with a central standpipe (422). The standpipe has a flow element (442) movable therein for controlling the condition of flow openings (436) in the standpipe.

Abstract: A fuel filter comprises a head (96) having an inlet (100) and an outlet (102). The head is connected to an element (266) by a nipple portion (186) which has a valve element (196) therein. An actuating projection (222, 272) is engageable with said valve element to open flow through said nipple portion when the correct element is attached hereto. The actuating projection is further supported on a central portion (220, 276) which prevents connection to a nipple portion that extends too far into the element. According to a further embodiment, the filter includes a housing (412) with a removable element (424) mounted therein. The housing has an inlet port (414) in direct fluid communication with a chamber (418). The outlet port (416) is in direct fluid communication with a central standpipe (422). The standpipe has a flow element (442) movable therein for controlling the condition of flow openings (436) in the standpipe.

Abstract: A filter assembly includes a housing having a cylindrical side wall and a first and second end walls at either end of the cylindrical side wall. The first end wall has a fluid inlet port for receiving fluid to be filtered and at least one fluid outlet port for discharging the filtered fluid. The second end wall is easily removable from the housing, and includes a pressure-activated sensing device preferably extending centrally within filter media to an outlet. The filter media can comprise either a single filter element or a pair of nested filter elements, and is supported between the upper and lower end walls. The pressure-activated sensing device includes a piston assembly which is responsive to a pressure drop across the filter media. A first flow path is provided to the upstream side of the piston assembly from the inlet to the filter assembly, while a second flow path is provided to the downstream side of the piston assembly from the downstream side of the filter media.

Abstract: A fuel filter comprises a head (96) having an inlet (100) and an outlet (102). The head is connection to an element (266) by a nipple portion (186) which has a valve element (196) therein. An actuating projection (222, 272) is engageable with said valve element to open flow through said nipple portion when the correct element is attached hereto. The actuating projection is further supported on a central portion (220, 276) which prevents connection to a nipple portion that extends too far into the element. According to a further embodiment, the filter includes a housing (412) with a removable element (424) mounted therein. The housing has an inlet port (414) in direct fluid communication with a chamber (418). The outlet port (416) is in direct fluid communication with a central standpipe (422). The standpipe has a flow element (442) movable therein for controlling the condition of flow openings (436) in the standpipe.

Abstract: A fuel filter assembly (10) for filtering diesel fuel includes a filter head (12), a spin-on replaceable element (13) and a collection bowl (15) removable from the element. The element includes a casing (52) with a turned-in edge portion at a lower end. An adaptor ring (69) is supported on said edge portion inside the element and includes an annular threaded portion (71). The collection bowl has an outer peripheral wall (74) with an annular threaded portion engaging the threaded portion of the adaptor ring. The outer peripheral wall of the bowl has an annular shoulder abutting the turned-in edge portion of said casing to clamp said casing between the adaptor ring and the bowl, when the bowl is attached to the element. The adaptor ring has a plurality of spaced ribs (70) with projections that extend upward and radially outward to maintain the filter medium (55) spaced from an inner wall surface of the casing. A resilient member (68) holds the filter medium between a top plate (62) and the adaptor ring.

Abstract: A fuel filter assembly (10) includes a housing (12) with an internal chamber (14) and inlet and outlet (18, 22). The chamber is bounded by an annular wall (16) and has an opening (30) at an upper end thereof. An element (26) is accepted in the chamber. The element includes a manually engagable cap portion (28) for closing the opening, and a disk-shaped member (46). The disk-shaped member has a deformable lip portion (50) for engaging the annular wall, and for fluidly separating an aperture (24) in connection with the outlet fitting, from aperture (24) in connection with the outlet fitting, from an aperture (20) in fluid communication with the inlet fitting. A check valve (200) is also engaged by the lip portion to open a fluid path to the chamber when the filter element is located in the housing. A media body (54) of filter media (56) removes impurities from liquid flowing therethrough. Fuel flows from the inlet to the chamber and then through the media.

Abstract: A fuel filter assembly (10) includes a housing (12) with an internal chamber (14) and inlet and outlet (18, 22). The chamber is bounded by an annular wall (16) and has an opening (30) at an upper end thereof. An element (26) is accepted in the chamber. The element includes a manually engagable cap portion (28) for closing the opening, and a disk shaped member (46). The disk shaped member has a deformable lip portion (50) for engaging the annular wall, and for fluidly separating an aperture (24) in connection with the outlet fitting, from an aperture (20) in fluid communication with the inlet fitting. A media body (54) of filter media (56) removes impurities from liquid flowing therethrough. Fuel flows from the inlet to the chamber and then through the media. From an interior area (60) of the media body, the fuel passes through a passage (62) into an intermediate area (52) and out the outlet.

Abstract: A fuel filter assembly (10) includes a filter head (12) having a fuel inlet (18) and a fuel outlet (20). A filter element (14) is attached to said filter head. A collection bowl (16) is attached to the filter element. The filter element includes an outer wall (36) with upper and lower turned in edge portions (62, 72). Upper and lower ring shaped members (64, 74) are in abutting contact with said turned in edge portions and are positioned intermediate of said edge portions and end caps (46, 48) of an annular filter medium (38). The end caps include central openings (54) surrounded by circular resilient gaskets (58). The filter element (14) is attachable by either of its ring shaped members to the filter head and collection bowl.

Abstract: A fuel filter comprises a head (10, 96) having an inlet (14, 100) and an outlet (16,102). The head has a pumping portion (18, 104) which includes a vertically extending stepped bore (46, 120) having movable bodies (86, 88; 132, 140) therein. The fluid area between the bodies (54, 126) is connected to a variable volume area (77, 160). The head is connected to an element (98, 266) by a nipple portion (186) which has a valve element (196) therein. An actuating projection (222, 272) is engagable with said valve element to open flow through said nipple portion when the correct element is attached thereto. The failure of the nipple portion to sufficiently extend in the element, which occurs when an improper element is attached, prevents flow through the nipple portion and renders the filter inoperable. The actuating projection is further supported on a central portion (220, 276) which prevents connection to a nipple portion that extends too far into the element.

Abstract: A fuel filter assembly (10) for filtering diesel fuel includes a filter head (12), a spin-on replaceable element (13) and a collection bowl (15) removable from the element. The element includes a casing (52) with a turned-in edge portion at a lower end. An adaptor ring (69) is supported on said edge portion inside the element and includes an annular threaded portion (71). The collection bowl has an outer peripheral wall (74) with an annular threaded portion engaging the threaded portion of the adaptor ring. The outer peripheral wall of the bowl has an annular shoulder abutting the turned-in edge portion of said casing to clamp said casing between the adaptor ring and the bowl, when the bowl is attached to the element. The adaptor ring has a plurality of spaced ribs (70) with projections that extend upward and radially outward to maintain the filter medium (55) spaced from an inner wall surface of the casing. A resilient member (68) holds the filter medium between a top plate (62) and the adaptor ring.

Abstract: A fuel filter assembly (10) for filtering diesel fuel includes a filter head (12), a spin-on replaceable element (13) and a collection bowl (15) removable from the element. The element includes a casing (52 ) with a turned-in edge portion at a lower end. An adaptor ring (69) is supported on said edge portion inside the element and includes an annular threaded portion (71). The collection bowl has an outer peripheral wall (74) with an annular threaded portion engaging the threaded portion of the adaptor ring. The outer peripheral wall of the bowl has an annular shoulder abutting the turned-in edge portion of said casing to damp said casing between the adaptor ring and the bowl, when the bowl is attached to the element. The adaptor ring has a plurality of spaced ribs (70) with projections that extend upward and radially outward to maintain the filter medium (55) spaced from an inner wall surface of the casing. A resilient member (68) holds the filter medium between a top plate (62) and the adaptor ring.

Abstract: A filter element for a fuel filter includes an outer, coalescing filter media and an inner, water-absorbing filter media. The outer media normally filters or separates particles from the fuel system and coalesces water in the fuel. As the outer media degrades through use and water penetrates to the inner media, the inner media absorbs the water to act as a back-up for the outer filter media. As the inner media absorbs water, the inner media expands to restrict the fuel flow therethrough. At a predetermined pressure differential across the inner media, a by-pass device in the inner filter media opens or otherwise allows fluid from the outer filter media to bypass the inner filter media. Although the by-pass device provides a fluid path around the inner media, the outer media maintains its particle filtration efficiency of the fuel at a high level.

Abstract: A fuel filter assembly (10) includes a filter head (12) having a fuel inlet (18) and a fuel outlet (20). A filter element (14) is attached to said filter head. A collection bowl (16) is attached to the filter element. The filter element includes an outer wall (36) with upper and lower turned in edge portions (62, 72). Upper and lower ring shaped members (64, 74) are in abutting contact with said turned in edge portions and are positioned intermediate of said edge portions and end caps (46, 48) of an annular filter medium (38). The end caps include central openings (54) surrounded by circular resilient gaskets (58). The filter element (14) is attachable by either of its ring shaped members to the filter head and collection bowl.

Abstract: A fuel filter assembly (10) for filtering diesel fuel includes a filter head (12), a spin on replaceable element (13) and a collection bowl (15) removable from the element. The element includes a casing with a turned-in edge portion at a lower end. An adaptor ring (69) is supported on said edge portion inside the element and includes an annular threaded portion (71). The collection bowl has an outer peripheral wall (74) with an annular threaded portion engaging the threaded portion of the adaptor ring. The outer peripheral wall of the bowl has an annular shoulder abutting the turned-in edge portion of said casing to clamp said casing between the adaptor ring and the bowl, when the bowl is attached to the element. A seal (76) between the shoulder and the casing further serves to hold the element and the bowl in fluid tight relation.

Abstract: A device for heating and cooling fuel to maintain the temperature of fuel delivered to an engine within a desired temperature range includes a body (10) having a fuel inlet (12) and a fuel outlet (14). The body includes a middle portion (16) and a first heat exchanger portion (18) in connection with a heat source. The body also includes a second heat exchanger portion (20) in connection with a heat sink. A thermostatic actuator (86) positioned adjacent the outlet of the device, includes a plunger rod (88) that extends responsive to increased temperature of the fuel passing the actuator. A movable member (74) is positioned by the plunger rod to direct fuel to either a first opening (28) from which the fuel passes through the first heat exchanger portion and is heated, or to a second opening (30) from which the fuel passes through the second heat exchanger portion and is cooled.