Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
  • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
  • B01D35/147—Bypass or safety valves
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
  • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
  • B01D35/153—Anti-leakage or anti-return valves
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
  • B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
  • B01D35/30—Filter housing constructions
  • B01D35/306—Filter mounting adapter
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D2201/00—Details relating to filtering apparatus
  • B01D2201/40—Special measures for connecting different parts of the filter
  • B01D2201/4046—Means for avoiding false mounting of different parts

Definitions

• Liquid filter especially oil filter
• the invention relates to a liquid filter, in particular an oil filter for cleaning lubricating oil, in particular for internal combustion engines of motor vehicles, with the features of the preamble of claim 1.
• an oil filter of this type which has a filter housing which is arranged essentially upright in the installed state, which contains a filter receiving space in an upper section for accommodating a ring filter insert and which has an inlet channel for unpurified 01 and one in a lower section Outlet channel for cleaned 01 contains.
• the inlet channel connects a supply line of the oil filter connected to a pressure side of an oil pump to a raw side of the ring filter insert in the filter receiving space.
• the outlet channel connects a clean side of the ring filter insert in the filter receiving space to a drain line of the oil filter that communicates with the lubrication points of an internal combustion engine.
• the filter housing with channels integrated therein is made in one piece as an injection molded component manufactured.
• the housing must then be reworked on the inside, for example to provide smooth surfaces for seals.
• careful surface treatment is required for the ring filter insert to be introduced in order to connect its central interior tightly to the corresponding channel, here the clean-side outlet channel.
• the present invention deals with the problem of designing a filter of the type mentioned in the introduction with regard to simplified processing.
• the invention is based on the general idea of summarizing those components of the filter housing which are produced in one piece with a conventional filter housing and which have to be reworked to fulfill their functions, in a function carrier set which can be produced separately.
• a function carrier set which can be produced separately.
• the functional support set is made of plastic, in particular by means of an injection molding process.
• the surface material that forms is sufficiently high-quality so that post-processing can be omitted on a regular basis.
• the functional elements integrated into the functional support set are at least the drain channel, which connects the clean side of the ring filter insert in the filter receiving space with the drainage of the liquid filter.
• the following functional elements can be integrated into the functional support set: The inlet channel connecting the feed line of the liquid filter to the raw side of the ring filter insert in the filter receiving space and / or an idling channel allowing the liquid to flow out of the filter receiving space and / or a non-return valve assigned to the inlet channel and / or one Outlet duct with the pressure-dependent connecting pressure control valve and / or a bypass valve connecting the inlet duct with the outlet duct pressure-dependent.
• the more functional elements of the filter housing are integrated into the functional support set, the stronger the advantages of the invention have an effect, so that less reworking effort is required for the filter housing.
• a support receptacle formed in the lower section of the filter housing and into which the functional support insert is inserted forms the inlet channel, so that the unpurified liquid flows around the functional support insert and the ring filter insert on the outside.
• the support receptacle provided for the functional support set can be used as a functional element, so that it performs a double function in this respect.
• FIG. 1 shows a perspective view in an exploded arrangement of the individual components of an inventive liquid filter
• Fig. 2 is a side view of an additional component.
• a liquid filter 1 according to the invention has a filter housing 2, which is expediently produced in one piece, in particular as an aluminum die-cast component.
• a cylindrical tube component 2a and a base component 2b adjoining it at the bottom are separated from one another for better illustration. the shown.
• the unity of these two components is symbolized in Fig. 1 by a curly bracket.
• the tube component 2a is also shown transparently for the sake of an improved representation.
• the filter housing 2 can be closed on its upper side by a screw-on cover 3.
• a filter receiving space 4 is formed, in which the ring filter insert 5 is inserted in the assembled state of the filter 1.
• the ring-filling insert 5 is designed such that the liquid to be cleaned flows through it radially from the outside inwards.
• the filter insert 5 is axially fixed and rotatably mounted in the interior of the cover 3, so that the filter insert 5 as shown in FIG. 1, the filter housing 2 is inserted at the same time as the cover 3 is put on.
• a support receiving space 6 is formed, in which the functional support set 7 is accommodated when the filter 1 is assembled.
• the base component 2b there are several lines open at the top, namely a supply line 8, which communicates, for example, with a pressure side of an oil pump, a discharge line 9, which communicates with the corresponding lubrication points of an internal combustion engine, and a return line 10, for example with a relatively unpressurized reservoir , for example with an oil pan.
• the lines 8, 9, 10 which are open at the top form took for corresponding nozzle 11, 12, 13, which are formed on the functional support set 7.
• Radially acting sealants, here O-rings 16 ensure effective sealing of the connecting pieces 11, 12, 13 in the associated lines 8, 9, 10.
• the functional support set 7 has an inlet duct section 14 which contains an anti-return valve 15 and can be inserted into the opening of the feed line 8 with the nozzle 11.
• the uncleaned 01 (crude oil) passes through the anti-return valve 15 into the carrier receiving space 6 as well as into the filter receiving space 4 em and thus coils around the functional support insert 7 and the filter cartridge insert 5.
• the carrier receiving space 6 therefore forms an inlet channel for unpurified liquid, which the supply line 8 of the filter 1 connects to a raw side of the R g filter element 5 in the filter receiving space 4.
• Theannos109msatz 7 has at its upper end a central socket 17 which is attached to the the Rmgfllterizophon 5, whereby a communicating connection with the Remseite the ring filter insert 5 bil ⁇ Denden interior of the ring filter insert 5 is formed.
• the filter insert 5 expediently contains a lower end disk 18, which is provided with a central opening and is equipped with appropriate sealing means.
• the functional support set 7 also has an outlet channel 19, which is provided at the end with the central connector 17 and at the other end with the connector 12, so that the outlet channel 19, when it is inserted with its connector 12 into the opening of the derivative 9, via the central connector 17 connects the Re side of the ring filter insert 5 with the derivative 9 of the filter 1.
• the outlet channel 19 has a bypass valve 20, which opens above a threshold value for a raw pressure in the inlet channel or in the carrier receiving space 6 and connects the carrier receiving space 6 to the outlet channel 19, so that the crude oil in the event of a critical pressure increase bypassing the ring filter insert 5 the Remseite, that is to the cleaned 01 (Reinol) can flow into the discharge line 9.
• the functional support set 7 also has an idling channel 21, which has the socket 13 at its lower end and an opening 22 at its upper end, m which sealingly penetrates the filter housing 2 used in the filter housing 2, the pin 23, which is sealed with appropriate sealing means, for example em O-Rmg 24.
• the pin 23 is formed on the end plate 18 and projects axially and eccentrically from the bottom.
• the filter insert 5 is coupled to the cover 3 such that when the cover 3 is removed from the housing 2, the ring filter set 5 is simultaneously pulled out of the housing 2.
• the pin 23 opens the opening 22 of the idle channel ⁇ fre_ 21, so that the filter receiving space 4 can idle via the return line 10th
• the axial height of the off tion 22 thus forms the lower limit of the filter receiving space 4.
• a ramp 25 is formed on the functional support set 7, the lower end of which begins at the opening 22 of the idling channel 21 at the axial height of this opening 22 , The ramp 25 then rises along its ramp length in the axial direction into the filter receiving space 4 and ends again at the opening 22, but at an axially higher level.
• the ramp 25 thus has a helical shape with a single substantially complete turn.
• the functional support set 7 is a preferred embodiment largely made of plastic, in particular by e injection molding.
• an essentially H-shaped component 27 can be designed as an additional functional element, which can be connected to the connecting pieces 12 and 13 of the outlet channel 19 or the idling channel 21 by plugging on.
• both the idling duct 21 are cut by a Leerlaufkanalab ⁇ 28 and the outlet passage 19 by a nalab bainiliaka ⁇ 29 extended, which in turn over corresponding de Joint 12 ⁇ or 13 x .
• Component 27 also has a pressure control valve 30 which, depending on the pressure, creates a connection between the idle duct section 28 and the outlet duct section 29 in order to allow relaxation in the return line 10 in the event of a critical pressure increase on the reverse side. It is clear that when this component 27 is used, the connection of the inlet duct section 14 is connected to the feed line 8 by an appropriate extension piece or the ducts 19 and 21 are shortened accordingly.
• the sockets 11, 12, 13 of the inlet duct section 14, the idle duct 21 and the outlet duct 19 can each be plugged axially into the associated openings of the feed line 8, the return line 10 or the discharge line 9, so that the functional support set 7 in the axial direction m the filter housing 2 is removable.
• the Rmgfllter insert 5 can be plugged onto the functional support set 7 in the axial direction, the central connector 17 m penetrating the central opening of the end plate 18 and the pin 23 m sealingly penetrating the opening 20 of the idling channel 21.

Landscapes

• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
• Filtration Of Liquid (AREA)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (2)

Family

ID=7926628

Family Applications (1)

Country Status (7)

Cited By (1)

Families Citing this family (20)

Family Cites Families (20)

• 1999
  • 1999-10-23 DE DE19951084A patent/DE19951084A1/de not_active Withdrawn
• 2000
  • 2000-09-30 US US10/111,472 patent/US6835305B1/en not_active Expired - Lifetime
  • 2000-09-30 WO PCT/DE2000/003508 patent/WO2001030478A2/de not_active Ceased
  • 2000-09-30 EP EP00979411A patent/EP1222010B1/de not_active Expired - Lifetime
  • 2000-09-30 DE DE50005926T patent/DE50005926D1/de not_active Expired - Lifetime
  • 2000-09-30 BR BRPI0014976-4A patent/BR0014976B1/pt not_active IP Right Cessation
  • 2000-09-30 MX MXPA02001812A patent/MXPA02001812A/es active IP Right Grant
  • 2000-09-30 JP JP2001532886A patent/JP4555530B2/ja not_active Expired - Lifetime

Also Published As

Similar Documents

Legal Events