초록 ▼

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 portio

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. The cover further includes a cover projection (482) for supporting a projection (478) on end cap (460) of the filter element, which opens flow into the standpipe only when the element is installed. A centering wall (486) is also provided on the cover which is received within a recess portion (704) of a well area of the end cap (460). 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 a first outlet (416), and radially outward through the second media ring to a second outlet (710).

대표청구항 ▼

[ What is claimed is:] [10.] A filter assembly, comprising:a filter housing including a pair of housing portions defining a filter cavity, one of said housing portions comprising a cylindrical cup-shaped body having a longitudinally-extending cylindrical standpipe extending upwardly into the filter

[ What is claimed is:] [10.] A filter assembly, comprising:a filter housing including a pair of housing portions defining a filter cavity, one of said housing portions comprising a cylindrical cup-shaped body having a longitudinally-extending cylindrical standpipe extending upwardly into the filter cavity from one end of the body with a distal end having a valve flow element, and an opposite open end, and the other of the housing portions comprising a cover for the open end of the cylindrical body, said cover including a central projection extending longitudinally front an inside surface of the cover into the filter cavity, and a centering wall device extending longitudinally from the inside surface of the cover in radially-spaced relation to the central projection, anda filter element disposed between the housing portions, said filter element including a first end cap, said first end cap having an imperforate annular cap portion and a well area extending radially inward from said annular portion, said well area having a centering wall receiving device extending longitudinally into an interior area of said filter element with a pair of sidewalls and an end wall interconnecting the sidewalls, said centering wall receiving device forming a portion of a centering wall recess that opens to an axially outer side of the well area and receiving the centering device of the cover, a first projection extending longitudinally from said well area of said annular cap portion and spaced radially inward from the centering wall receiving device, said first projection includes a tubular wall forming a portion of a projection recess that opens to the axially outer side of said well area and receiving the central projection from the cover, and attachment structure fixing said first projection to said well area;a continuous first ring of filter media, said first ring having an interior surface bounding interior area, said first ring being adhesively bonded in fluid-tight relation to said annular cap portion of said first end cap;a second end cap longitudinally disposed from said first end cap and adhesively bonded in fluid-tight relation to said media ring, said second end cap having a central opening therethrough axially aligned with said first projection and through which the flow element projects longitudinally into said interior area;wherein said first projection extends in said interior area toward said central opening and is radially disposed inwardly from said interior surface, is smaller in transverse cross-section than said central opening and is longer than it is wide, whereby said first projection engages the valve flow element at the distal end of the standpipe.