DE1611121B - Screw-on liquid filter - Google Patents

Description

3 4

get away to valve 17. The open end 11 b Before the cover 23 is attached to that of the housing, after inserting the Filterpa housing, a disk 26 made of flexible Matetrone 12 is closed by the cover 23, rial around the outer wall 24 e of the thread 24 d which from the reinforcement plate 24 and the ab- arranged, so that the disc over the opening cover plate 25 exists. The outer edge 24 α of the 5 gene extends, which through the pipe socket 25 d and reinforcement plate 24 consists of fairly thick sheet metal, the top of the edge 24 α of the reinforcement plate, the inner part of the reinforcement plate 24 is re-formed. A diaphragm spring 27 which is convex relative to the housing 11 and contains several of the line 14 a in the radial direction he inlet openings 24 c. The middle part of the reinforcement stretches presses on the disk 26, so that it closes the kung plate 24 provided with a thread 24 d io openings.

and protrudes into the interior of the housing. The cover plate can consist of a relatively The cover plate 25 consists of an outer thin sheet metal, which is rolled with the housing 11 band 25 a, the inner band 256 and the channel, whereby a sufficient support 25 c, which .abgestetzt of the bands will. Each of the tongue of the reinforcement plate 24, which is made up of ratio bands has a substantially truncated cone shape and 15 moderately thick sheet metal, is made possible, converges against the fastening lines on the In the channel 25 c is a sealing ring 28 made of la-channel 25 c. As can be seen from FIG. 2, the stischem material is arranged in the case of poor out-of-bands, the channel 25 c at a distance from the reinforcement direction or distortion of the bearing surface of the Mokungsplatte 24. The cover plate 25 also has gate the channel 25 c relative to the reinforcement several Pipe socket 25 d , which are deflected into each 20 plate 24, as they extend through the inner of the inlet openings 24 c in the reinforcement plate and outer bands 25 a and 25 & elastically against. the reinforcement plate 24 is supported.

1 sheet of drawings

Claims (1)

1 2 Outlet opening arranged inlet openings he patent claim: stretches. This arrangement allows the cover plate radially inwards only through the annular groove Screw-on liquid filter, consisting of support against the reinforcement plate in which the from a housing with an open end, which is arranged 5 ring seal. Will be under high the reinforcement plate is twisted by a reinforcement plate with at least pressure an inlet opening and a central exposure, so the cover plate and the sealing opening is closed, which with the center ring these twists, which leads to leaks len return channel one in the housing can lead to the motor housing, ordered filter element is connected, io The invention is based on the object that wherein the reinforcement plate is externally of one of the known liquid filters of the aforementioned to improve central outlet opening of the reinforcing plate kind so that even 'with different comprehensive cover plate is superimposed, which pressure ratios and unfavorable conditions with its circumference at the end edge of the fiI the bearing surface of the motor housing a perfect tergehäuses is attached and on its outside 15 free sealing of the filter housing against the Mo- carries a ring seal, which is guaranteed when the tor. housing is screwed on. of the filteis pressed against the filter bearing surface. The solution to this problem is that the and seals the filter inlet to the outside, cover plate in the area of the ring seal from the characterized in that the reinforcement plate is lifted off and at its ra- cover plate (25) in the area of the ring seal (28) 20 dial inner section several pipe sockets is lifted from the reinforcement plate (24), which is located in the same number of and inlet openings in the reinforcement plate seen at their radially inner portion has a plurality of pipe sockets (25 d) which extend into it and an elastic holder for into the same number of inlet openings lifted from the reinforcement plate openings (24 c) in the reinforcement plate (24) form the cover plate area. This achieves One stretch and an elastic holder for the sealing ring and the sealing groove in the the cover plate lifted from the reinforcement plate from twisting of the reinforcement Form cover plate area. plate is independent and is under the pressure of the the filter housing screwed onto the motor housing '' "30 ses of the surface of the motor housing evenly everywhere can create. To further explain the invention, see The invention relates to a screw-on an exemplary embodiment shown in the drawing res liquid filter that is referenced from a housing with play. It shows consists of an open end, which by a reinforcement 35 Fig. 1 is a plan view of the closed end part kung plate with at least one inlet opening and the filter, a central outlet opening is completed, Figure 2 is a vertical partial longitudinal section which is connected to the central reflux channel of one in the level 2-2 of FIG. 1, Housing arranged filter element in connec- F i g. 3 a plan view of the lower end of the FiI with the reinforcement plate on the outside of 40 ters, one the central outlet opening of the reinforcement Fig. 4 is a vertical partial longitudinal section plate comprehensive cover plate is superimposed, the lower part of the filter. which with its circumference at the end edge of the filter 10 consists of a housing 11, which Filter housing is attached and on its outside a closed end portion 11 "and an open carries a ring seal which, when unscrewing, has the 45 end portion 11 b . By doing. Housing 11 is a Filter is pressed against the filter bearing surface and filter cartridge 12 made of folded filter paper 12 α on seals the filter inlet to the outside. arranged, which is held between end caps 13 and 14 US Pat. No. 3,232,437 is a ten. The annular filter cartridge 12 around Liquid filter known, the reinforcing plate closes the interior 15 of the housing, which by the outside of the central outlet opening of the 50 a perforated tube 16 is limited against which the Support the cover plate encompassing the reinforcement plate over folds of the filter cartridge 12, is superimposed, the end cap 13 has an annular with its circumference at the end Edge of the filter housing is attached and on its flange 13 α, which against the. Inside of raw The outside has a ring seal which rests when the top 16 is on. On the flange is a U-shaped screws of the filter against the filter bearing surface- 55 valve housing 17 α fastened, which is is pressed. The ring seal is enclosed in a groove of the 17 b of the pressure relief valve 17 Cover plate arranged, the bottom of which is against sen. The valve opening 13 b, in the flange 13 a is supports the reinforcement plate. In such a Flüs adjacent to the annular valve seat 13 c of the sigkeitsfiltern has been found to be arranged with pressure relief valve 17. The valve Consideration of the rigid support of the seal 60 17 is provided with a valve disk 17 c , which is through ring and the cover plate against the reinforcement the spring 17 d is pressed against the seat 13 c. the plate often insufficient seal between spring 17 d is through the bottom 17 b of the housing the motor housing and that supported on this 17 α. When you assemble the filter 10, the fiI-chen leaves. The known liquid filters have furthermore arranged 65 terpatroie 12 within the housing 11, ner the disadvantage that the cover plate is only as and the end cap 13 is in engagement with the bracket ring is formed, which is placed on the outer housing spring 22. The pen is with an opening circumference only up to the area around the axial 22 a, in order to ensure an unobstructed flow