CN209557144U - A kind of fuel filter assembly - Google Patents

Abstract

The utility model discloses a kind of fuel filter assemblies, including filter block, electronic fuel pump, removable cartridge and detachable filter casing；Removable cartridge is detachably fixed by interior of shell boss to be arranged in detachable filter casing；Removable cartridge is closely fixed by compressing member with central tube；Removable cartridge is threaded on filter block by detachable filter casing；The top of filter block is provided with electronic fuel oil pumping chamber, and electronic fuel oil pumping chamber is for being fixedly mounted electronic fuel pump；The utility model may be implemented only to replace filter core, makes filter casing have the function of reusing, facilitates user to replace filter core, reduce the use cost of user；The function of electronic pump oil exhaust can also be realized, to solve because of the problem of there are gas or fuel oil wax deposition, leading to engine cut-off difficulty in starting in fuel filter and oil circuit；And it is time saving and energy saving, it improves work efficiency.

Description

A kind of fuel filter assembly

Technical field

The utility model relates to a kind of fuel filter assemblies, belong to fuel filter technology technical field.

Background technique

Fuel filter main function is to filter larger particles and crosses drainage, prevents bulky grain from entering next stage Fuel System In system, lead to the precision-fit part in fuel system, if oil transfer pump and high-pressure oil pump are worn, is conducive to protect entire Fuel System System.And fuel filter is made of filter core and filter casing, and in use, failure is filter core, it needs often to change, Existing fuel filter, filter core and filter casing are to have carried out Hard link, are an entirety, in replacement process, are needed whole Body replacement.But filter paper only accounts for the sub-fraction of entire filter cost, integrally scrap, such serious waste filter casing, Function without reuse, and increase the replacement cost of user.

And with the upgrading of discharge standard, the raising of emission request, so that the permeability of filtering material is worse and worse, from The external world enter pipeline gas be largely gathered on fuel filter and pipeline in, in engine start, not due to fuel oil Foot, it is often necessary to start it is several under, be discharged until by air, engine could start and work normally, and lead to engine cut-off Difficulty in starting problem.In addition, since domestic fuel oil quality is irregular, and at low temperatures, vehicle user is not often by wanting It asks using corresponding label fuel oil, leads to fuel oil wax deposition, fuel-viscosity variation is excessive, and engine suction does not oil, and engine start is difficult, and The efficiency that traditional manual pump uses is too low, time-consuming and laborious.

Both problems all exist, and the prior art can only solve the problems, such as a portion or one, do not ask these Topic carries out unified solution, provides a kind of general technical solution.

In summary, the existing technology has inconveniences and defects in actual use, so it is necessary to be improved.

Utility model content

The technical problems to be solved in the utility model is against the above deficiency, to provide a kind of fuel filter assembly, can be with It realizes only replacement filter core, makes filter casing have the function of reusing, facilitate user to replace filter core, reduce making for user Use cost；Can also realize the function of electronic pump oil exhaust, thus solve because in fuel filter and oil circuit there are gas or Person's fuel oil wax deposition, the problem of leading to engine cut-off difficulty in starting；And it is time saving and energy saving, it improves work efficiency.

In order to solve the above technical problems, the utility model uses a kind of following technical scheme: fuel filter assembly, including Filter block, electronic fuel pump, removable cartridge and detachable filter casing；The removable cartridge simultaneously passes through interior of shell boss It is detachably fixed and is arranged in detachable filter casing；The removable cartridge is closely compressed solid by compressing member and central tube It is fixed；Removable cartridge is threaded on filter block by detachable filter casing；The top of the filter block is provided with electronics combustion Oil pump oil pocket, the electronic fuel oil pumping chamber is for being fixedly mounted electronic fuel pump；The detachable filter casing and filter block All using die cast metal or nonmetallic it is molded；

Further, the interior of shell boss is arranged on the inner hole wall of detachable filter casing；In the shell Portion's boss quantity be it is multiple, interior of shell boss is uniformly arranged along the circumference；The compressing member is arranged in detachable filter casing Inner hole bottom；The compressing member is any one in sheet metal component, spring or pressing plate；

Further, the electronic fuel oil pumping chamber is stepped hole；The electronic fuel oil pumping chamber is successively set from outside to inside It is equipped with pump oil oil pocket, oil suction oil pocket and dynamo oil chamber bottom boss；Vacuum is provided between the pump oil oil pocket and oil suction oil pocket Step is sealed off with pump oil oil pocket；

Further, one end of the central tube is connected with oil suction oil pocket, the centre bore of the other end and removable cartridge It is connected；Cartridge seal pad is provided between the central tube and removable cartridge；The medium position of the central tube and unidirectional One end of valve installation oil pocket is connected；The central tube is arranged in the inner cavity of filter block connection internal screw thread；

Further, the 4th sealing ring is provided on the vacuum and pump oil oil pocket seal isolation step；The pump oil oil The port of chamber is provided with motor seal step, and electronic fuel oil pumping chamber open end is provided with motor bolt installation threaded hole；

Further, the electronic fuel pump includes electric machine controller, motor part and pump body portion；The motor control Device is bolted on filter block；The motor part is brushless motor or motor structure with brush；The pump body portion is Roller pump, the roller pump are fixed by the 5th sealing ring and the limit of dynamo oil chamber bottom boss；

Further, a check valve installation oil pocket, the check valve installation oil pocket setting are provided in the middle part of the filter block In the lower section of electronic fuel oil pumping chamber；The check valve installation oil pocket is stepped bore structure；The check valve installs oil pocket two End opening；Oblique oil duct, the other end and the pump oil oil of the oblique oil duct are communicated in the bottom sidewall of the check valve installation oil pocket Chamber is connected；

Further, the top of the detachable filter casing is provided with cage connection external screw thread；The cage connection Externally threaded tail end is provided with shell sealed step；Shell sealing ring is provided in the shell sealed step；

It further, further include check valve apparatus, the check valve apparatus setting is in check valve installation oil pocket；The list The end of valve gear is provided with the first screw plug and the first sealing ring；The check valve apparatus includes valve body, valve seat, spring and list To valve seals；The valve body and valve base surface are provided with coating；One end of the valve body is provided with unidirectional valve seals, described The bar portion of valve body is provided with channel；The bar portion of the valve body is plugged in the central bore of valve seat；The spring is socketed in valve body Between valve seat；

Further, the side of the filter block is provided with the second oil inlet and the second oil outlet, the other side setting of filter block There are the first oil inlet and the first oil outlet；The filter block side is provided with multiple installation bases；The detachable filter casing Bottom end face is provided with multiple mounting holes, and the mounting hole is for installing discharging valve, sensor and heater.The motor part One end of electric machine controller is set；One end of the electric machine controller is provided with motor seal slot；The electric machine controller Motor bolt mounting holes are provided on end face；The 5th sealing ring is provided on the roller pump；

The utility model after the above technical solution is adopted, compared with prior art, has the advantage that

The utility model may be implemented only to replace filter core, makes filter casing have the function of reusing, facilitates user Filter core is replaced, the use cost of user is reduced；The function that can also realize electronic pump oil exhaust, to solve because of fuel filter There are gas or fuel oil wax deposition in clear device and oil circuit, the problem of leading to engine cut-off difficulty in starting；And it is time saving and energy saving, it mentions High working efficiency.

The utility model is described in detail with reference to the accompanying drawings and examples.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the explosive view of Fig. 1；

Fig. 3 is the scheme of installation of bonded washer and the second screw plug；

Fig. 4 is the main sectional view of filter block；

Fig. 5 is the bottom view of Fig. 4；

Fig. 6 is the rearview of Fig. 4；

Fig. 7 is the structural schematic diagram of electronic fuel pump；

Fig. 8 is the left view of Fig. 7；

Fig. 9 is the structural scheme of mechanism of detachable filter casing；

Figure 10 is the top view of Fig. 9；

In figure,

1- filter block, 2- cartridge seal pad, 3- shell sealing ring, 4- removable cartridge, 5- compressing member, the detachable filter of 6- Shell, 7- sensor, 8- discharging valve, 9- power supply harness, the unidirectional valve seals of 10-, 11- valve body, 12- spring, 13- valve seat, 14- First sealing ring, the first screw plug of 15-, 16- bolt, 17- electronic fuel pump, the second sealing ring of 18-, 19- third sealing ring, 20- 4th sealing ring, the 5th sealing ring of 21-, 22- bonded washer, the second screw plug of 23-, 101- installation base, 102- motor bolt peace Dress threaded hole, 103- pump oil oil pocket, 104- oil suction oil pocket, 105- dynamo oil chamber bottom boss, 106- filter block connect internal screw thread, 107- filter seals step, 108- central tube, 109- check valve sealed step, 111- valve seat installation step, 110- check valve Install oil pocket, 112- screw plug sealed step, 113- screw plug mounting hole, the oblique oil duct of 114-, 115- vacuum and pump oil oil pocket sealing every Destage rank, 116- motor seal step, the second oil outlet of 117-, the second oil inlet of 118-, the first oil outlet of 119-, 120- first Oil inlet, 1701- electric machine controller, 1702- motor seal slot, 1703- motor casing boss or groove, 1704- roller pump, 1705- motor bolt mounting holes, 1706- motor part, 601- cage connection external screw thread, 602- shell sealed step, 603- peace Fill corner angle, the first mounting hole of 604-, the second mounting hole of 605-, 606- interior of shell boss.

Specific embodiment

For a clearer understanding of the technical features, objectives and effects of the utility model, now compareing Detailed description of the invention Specific embodiment of the present utility model.

A kind of fuel filter assembly of embodiment 1

As shown in Figs. 1-2, the utility model provides a kind of fuel filter assembly, including filter block 1, electronic fuel pump 17, Check valve apparatus, removable cartridge 4 and detachable filter casing 6；The electronic fuel pump 17 and check valve apparatus setting exist On filter block 1, the removable cartridge 4 is detachably arranged in detachable filter casing 6, and passes through detachable filter casing 6 are threaded on filter block 1；

Filter block 1 is an integral structure as described in figs. 2-6；The filter block 1 is that metal material die casting or nonmetallic materials are molded It forms；The top of the filter block 1 is provided with electronic fuel oil pumping chamber, and the electronic fuel oil pumping chamber is stepped hole；The electronics Fuel oil oil pumping chamber is closed at one end；

The electronic fuel oil pumping chamber is disposed with pump oil oil pocket 103, oil suction oil pocket 104 and motor oil pocket from outside to inside Bottom boss 105；Vacuum and pump oil oil pocket seal isolation step are provided between the pump oil oil pocket 103 and oil suction oil pocket 104 115；

The 4th sealing ring 20 is provided on the vacuum and pump oil oil pocket seal isolation step 115；

The port of the pump oil oil pocket 103 is provided with motor seal step 116, the motor seal step 116 and sealing Circle carries out cooperatively forming sealing, can prevent fuel leakage；The sealing ring quantity is one or more；

As a preference, the sealing ring includes the second sealing ring 18 and third sealing ring 19；

Electronic fuel oil pumping chamber open end is provided with motor bolt installation threaded hole 102；The motor bolt installation Threaded hole 102 is distributed uniformly and circumferentially；The quantity of motor bolt installation threaded hole 102 be three or three with On；

A check valve installation oil pocket 110 is provided in the middle part of the filter block 1, the check valve installation setting of oil pocket 110 exists The lower section of electronic fuel oil pumping chamber；The check valve installation oil pocket 110 is stepped bore structure；The check valve installs oil pocket 110 both ends opens；The check valve installation 110 one end of oil pocket is equipped with check valve sealed step 109；The check valve sealed step 109 are sealed cooperation with unidirectional valve seals 10；The other end of the check valve installation oil pocket 110 is provided with screw plug sealing Step 112, the screw plug sealed step 112 and the sealing of the first sealing ring 14 cooperate；112 one end of screw plug sealed step setting There is screw plug mounting hole 113, the screw plug mounting hole 113 is for installing the first screw plug 15；Before the check valve installation oil pocket 110 Portion is provided with valve seat installation step 111, and the valve seat installation step 111 is for limiting valve seat 13；

Be communicated with oblique oil duct 114 in the bottom sidewall of check valve installation oil pocket 110, the oblique oil duct 114 it is another End is connected with pump oil oil pocket 103；

1 lower part of filter block is provided with filter block connection internal screw thread 106, and filter block connection 106 oral area of internal screw thread is provided with Filter seals step 107；

The filter block connection internal screw thread 106 is internally provided with central tube 108；The central tube 108 connects interior spiral shell with filter block The central axis of line 106 is identical；The Single port of the central tube 108 is connected with oil suction oil pocket 104；The central tube 108 Medium position is connected with one end of check valve installation oil pocket 110；

The side of the filter block 1 is provided with the second oil inlet 118 and the second oil outlet 117, and the other side of filter block 1 is provided with First oil inlet 119 and the first oil outlet 120；Oil inlet and oil outlet are for connecting fuel pipe use；119 He of oil inlet 118, with the oil outlet 117 and 120, combination sealing washer 22 and screw plug 23. can be installed

1 left side of the filter block perhaps right side be provided with 101 quantity of installation base of installation base 101 be two or Two or more, the installation base 101 are separately positioned on above the tube wall of oil inlet and oil outlet；The installation base 101 is pre- Remain for that fixed other parts are installed；

As shown in Fig. 2,7 and 8, the electronic fuel pump 17 includes electric machine controller 1701, motor part 1706 and the pump housing Part；The electric machine controller 1701 is fixed on filter block 1 by bolt 16；

One end of the electric machine controller 1701 is provided with motor seal slot 1702；The quantity of the motor seal slot 1702 For one or more；Motor bolt mounting holes 1705 are provided on the end face of the electric machine controller 1701；The motor spiral shell 1705 quantity of bolt mounting hole is three or three or more；The motor bolt mounting holes 1705 install threaded hole with motor bolt 102 tighten connection by bolt 16, and electric machine controller 1701 is fixed on filter block 1；The lower part of the electric machine controller 1701 It is provided with power supply harness 9, the power supply harness 9 with vehicle power supply for connecting.

One end of electric machine controller 1701 is arranged in the motor part 1706, and the motor part 1706 is brushless motor Or motor structure with brush；The middle position of the motor part 1706 is provided with motor casing boss or groove 1703, described The 4th sealing ring 20 is provided on motor casing boss or groove 1703；The motor casing boss or groove the 1703, the 4th are close Seal 20 and vacuum and the seal isolation sealing of step 115 of pump oil oil pocket cooperate, and form pump oil oil pocket 103 and oil suction oil pocket 104；

The pump body portion is roller pump 1704, is provided with the 5th sealing ring 21 on the roller pump 1704, the described 5th Sealing ring 21 and dynamo oil chamber bottom boss 105 limit fixed roller pump 1704, have damping and fixed function；

As shown in Fig. 2, the check valve apparatus setting is in check valve installation oil pocket 110；The end of the check valve apparatus Portion is provided with the first screw plug 15 and the first sealing ring 14, and check valve apparatus is pressed abd fixed on filter block 1 by first screw plug 15；

The check valve apparatus includes valve body 11, valve seat 13, spring 12 and unidirectional valve seals 10；The valve body 11 and valve 13 surfaces of seat are provided with coating, increase wear-resisting effect；One end of the valve body 11 is provided with unidirectional valve seals 10, the valve body 11 bar portion is provided with channel, and the channel is for discharging fuel oil in the movement of valve body 11；The bar portion of the valve body 11 is plugged on valve In the central bore of seat 13；

The spring 12 is socketed between valve body 11 and valve seat 13；

The removable cartridge 4 is arranged in detachable 6 inner hole of filter casing；The centre bore of the removable cartridge 4 It is connected with central tube 108；It is sealed between the removable cartridge 4 and central tube 108 by cartridge seal pad 2；

As shown in Fig. 2,9 and 10, the detachable filter casing 6 is an integral structure, outside the detachable filter Shell 6 is that metal material die casting or nonmetallic materials are molded；The detachable filter casing 6 is internally provided with inner hole；

Interior of shell boss 606, the interior of shell boss are provided on 6 inner hole wall of detachable filter casing 606 quantity are multiple；The interior of shell boss 606 is uniformly arranged along the circumference；The interior of shell boss 606 is for detachable Fixed removable cartridge 4；The inner hole bottom of the detachable filter casing 6 is provided with compressing member 5, and the compressing member 5 is metal plate Any one in golden part, spring or pressing plate；It is solid that the compressing member 5 compresses removable cartridge 4 and central tube 108 closely It is fixed；

The top of the detachable filter casing 6 is provided with cage connection external screw thread 601, the cage connection external screw thread 601, which connect internal screw thread 106 with filter block, screws connection；The tail end of the cage connection external screw thread 601 is provided with shell sealed step 602；Shell sealing ring 3 is provided in the shell sealed step 602；The shell sealing ring 3 is O-ring seal or other shapes The sealing ring of formula；The shell sealing ring 3 is pressed on filter seals step 107 by shell sealed step 602；

6 lower part of detachable filter casing is provided with installation corner angle 603, and the installation corner angle 603 are polygonal structures； The installation corner angle 603 facilitate user to dismantle；

The 6 bottom end face center of detachable filter casing is provided with the first mounting hole 604, first installation Discharging valve 8 is threaded on hole 604；6 bottom end face of detachable filter casing deviates center and is provided with second Mounting hole 605；Sensor 7 is threaded on second mounting hole 605；6 bottom end face of detachable filter casing Deviate center and is additionally provided with heater module；

The working principle of the present embodiment are as follows:

It, can be by by 4 He of removable cartridge by adopting the above-described technical solution, form a kind of fuel filter assembly Detachable filter casing 6 has carried out separated design and assembly, in use, can be by dismantling outside detachable filter Shell 6 takes out and replaces removable cartridge 4, is then installing new removable cartridge 4, and will be outside original detachable filter Shell 6 screws up, to realize the advantage that only replacement removable cartridge 4 does not waste detachable filter casing, reduces user Use cost.

By adopting the above-described technical solution, forming a kind of fuel filter assembly, on fuel filter and can manage It in road after air inlet, is powered by electron fuel pump 17, so that electronic fuel pump 17 is started to work, fuel oil is from the first oil inlet 118 or second oil inlet 119 enter, filter, be inhaled into central tube 108 by removable cartridge 4, into oil suction oil pocket 104, By the pressurization of electronic fuel pump 17, pump oil oil pocket 103 is flowed into, 104 are then flowed into, then from the second oil outlet 117 or the first It flows out in oil outlet 120, in fuel flow process, the air extrusion before fuel oil is discharged automatically, thus in engine start Before, gas is discharged in fuel tank by engine interior structure, so that engine oil is smooth, function is started normally to start.

When user does not use corresponding label fuel oil as required, electron fuel pump 17 is powered, and electronic fuel pump 17 will be certainly Dynamic oil suction, assisted engine fuel feeding are squeezed into the fuel oil pressurization of wax deposition state in the high-pressure oil pump of engine, to give high pressure oil Pump smooth fuel feeding, engine start success, using manual pump before avoiding, efficiency is too low, it is time-consuming and laborious the problems such as.

The above is the citing of the utility model preferred forms, wherein the part that do not address in detail is this field The common knowledge of those of ordinary skill.The protection scope of the utility model is based on the contents of the claims, any to be based on this reality The equivalent transformation carried out with novel technical inspiration, is also within the protection scope of the utility model.

Claims (10)

1. a kind of fuel filter assembly, it is characterised in that: including filter block (1), electronic fuel pump (17), removable cartridge (4) With detachable filter casing (6)；The removable cartridge (4) is detachably fixed setting by interior of shell boss (606) and exists In detachable filter casing (6)；The removable cartridge (4) is closely compressed solid by compressing member (5) and central tube (108) It is fixed；Removable cartridge (4) is threaded on filter block (1) by detachable filter casing (6)；The top of the filter block (1) It is provided with electronic fuel oil pumping chamber, the electronic fuel oil pumping chamber is for being fixedly mounted electronic fuel pump (17)；It is described detachable Filter casing (6) and filter block (1) all using die cast metal or nonmetallic are molded.

2. a kind of fuel filter assembly as described in claim 1, it is characterised in that: the interior of shell boss (606) sets It sets on the inner hole wall of detachable filter casing (6)；Interior of shell boss (606) quantity be it is multiple, interior of shell is convex Platform (606) is uniformly arranged along the circumference；The compressing member (5) is arranged in the inner hole bottom of detachable filter casing (6)；The pressure Tight part (5) is any one in sheet metal component, spring or pressing plate.

3. a kind of fuel filter assembly as described in claim 1, it is characterised in that: the electronic fuel oil pumping chamber is ladder Hole；The electronic fuel oil pumping chamber is disposed with pump oil oil pocket (103), oil suction oil pocket (104) and motor oil pocket from outside to inside Bottom boss (105)；Be provided between the pump oil oil pocket (103) and oil suction oil pocket (104) vacuum and pump oil oil pocket sealing every Destage rank (115).

4. a kind of fuel filter assembly as described in claim 1, it is characterised in that: one end of the central tube (108) with Oil suction oil pocket (104) is connected, and the other end is connected with the centre bore of removable cartridge (4)；The central tube (108) and removable It unloads and is provided with cartridge seal pad (2) between filter core (4)；The medium position and check valve of the central tube (108) install oil pocket (110) one end is connected；Central tube (108) setting is in the inner cavity of filter block connection internal screw thread (106).

5. a kind of fuel filter assembly as claimed in claim 3, it is characterised in that: the vacuum and the sealing of pump oil oil pocket every The 4th sealing ring (20) is provided on destage rank (115)；The port of the pump oil oil pocket (103) is provided with motor seal step (116), electronic fuel oil pumping chamber open end is provided with motor bolt installation threaded hole (102).

6. a kind of fuel filter assembly as described in claim 1, it is characterised in that: the electronic fuel pump (17) includes electricity Machine controller (1701), motor part (1706) and pump body portion；The electric machine controller (1701) is fixed by bolt (16) On filter block (1)；The motor part (1706) is brushless motor or motor structure with brush；The pump body portion is roller pump (1704), the roller pump (1704) is fixed by the 5th sealing ring (21) and dynamo oil chamber bottom boss (105) limit.

7. a kind of fuel filter assembly as described in claim 1, it is characterised in that: be provided with one in the middle part of the filter block (1) A check valve installs oil pocket (110), and the lower section of electronic fuel oil pumping chamber is arranged in check valve installation oil pocket (110)；It is described It is stepped bore structure that check valve, which installs oil pocket (110),；The check valve installs oil pocket (110) both ends open；The check valve It installs and is communicated with oblique oil duct (114) in the bottom sidewall of oil pocket (110), the other end and pump oil oil pocket of the oblique oil duct (114) (103) it is connected.

8. a kind of fuel filter assembly as described in claim 1, it is characterised in that: the detachable filter casing (6) Top be provided with cage connection external screw thread (601)；The tail end of the cage connection external screw thread (601) is provided with shell sealing station Rank (602)；Shell sealing ring (3) are provided on the shell sealed step (602).

9. a kind of fuel filter assembly as described in claim 1, it is characterised in that: it further include check valve apparatus, the list To valve gear setting in check valve installation oil pocket (110)；The end of the check valve apparatus be provided with the first screw plug (15) and First sealing ring (14)；The check valve apparatus includes valve body (11), valve seat (13), spring (12) and unidirectional valve seals (10)；The valve body (11) and valve seat (13) surface are provided with coating；One end of the valve body (11) is provided with check valve sealing It encloses (10), the bar portion of the valve body (11) is provided with channel；The bar portion of the valve body (11) is plugged in the center of valve seat (13) Kong Zhong；The spring (12) is socketed between valve body (11) and valve seat (13).

10. a kind of fuel filter assembly as claimed in claim 6, it is characterised in that: the side of the filter block (1) is provided with Second oil inlet (118) and the second oil outlet (117), the other side of filter block (1) are provided with the first oil inlet (119) and first and go out Hydraulic fluid port (120)；Filter block (1) side is provided with multiple installation bases (101)；Detachable filter casing (6) bottom End face is provided with multiple mounting holes, and the mounting hole is for installing discharging valve (8), sensor (7) and heater；The motor section Divide (1706) setting in one end of electric machine controller (1701)；One end of the electric machine controller (1701) is provided with motor seal Slot (1702)；Motor bolt mounting holes (1705) are provided on the end face of the electric machine controller (1701)；The roller pump (1704) the 5th sealing ring (21) is provided on.