CN202300754U

CN202300754U - Spiral gasoline filter

Info

Publication number: CN202300754U
Application number: CN2011204389595U
Authority: CN
Inventors: 张华�; 田春如; 周时六; 何军平; 谢宵峰; 余世强; 徐�明
Original assignee: AOKAIJIA GROUP Co Ltd
Current assignee: AOKAIJIA GROUP Co Ltd
Priority date: 2011-11-08
Filing date: 2011-11-08
Publication date: 2012-07-04
Anticipated expiration: 2021-11-08

Abstract

The utility model relates to the field of automobile filter equipment, in particular to a spiral gasoline filter, which comprises a casing, a sealing cover and a filter core. A water drainage valve is arranged at the bottom of the casing, the sealing cover is provided with an oil inlet pipe and an oil outlet pipe, and the filter core is composed of an upper end cover, a lower end cover and hollow cylindrical filter paper which is arranged between the upper end cover and the lower end cover and longitudinally folded, and two annular end faces of the filter paper are fixedly bonded with the upper end cover and the lower end cover respectively. The spiral gasoline filter is characterized in that the upper end cover is provided with an oil outlet channel which is communicated with the oil outlet pipe, a filter core shaft is positioned in the center of the filter paper, a spiral runner is arranged around the filter core shaft, and the spiral runner is communicated with the oil outlet channel. The spiral runner is ingeniously positioned on the outer wall of the filter core so as to enable the filter to filter in rotary flow mode and greatly enhance filter effect. The spiral gasoline filter is simple in structure and low in cost. A silence block and a gas bleed valve are additionally arranged in the filter, thereby improving integral using performances of the filter.

Description

The screw type gasoline filter

[technical field]

The utility model relates to the automobile filter apparatus field, is specifically related to a kind of screw type gasoline filter.

[background technique]

The effect of screw type gasoline filter is with moisture in the gasoline and impurity filtering, and gasoline gets into through oil inlet pipe in the sediment bowl of filter cleaner under the effect of petrol pump during engine operation; Because this moment, volume became big; Flow velocity diminishes, and than the bottom that the heavy water of oil and impurity particle just are deposited in cup, light impurity flows to filter core with gasoline; And the gasoline of cleaning flows out through oil pipe from the inside that the micropore of filter core oozes people's filter core then.

At present; The filter paper that the screw type gasoline filter is adopted mostly is only to possess the filter paper that filters solid impurity; Though this gasoline filter paper filters solid impurity, and is powerless to the separation of moisture in the gasoline, and not only contain solid impurity in the gasoline usually; Also contain other impurity such as moisture, it is often not good to rely on the mode of conventional natural sedimentation to filter the effect of moisture.Therefore although present widely used BBG is strict more to petrol-injected control, the quality requirements of gasoline is improved day by day, the moisture that contains in the gasoline then is difficult to through existing screw type gasoline filter filtering.In a single day moisture in the gasoline get into motor, promptly possibly cause following infringement to motor:

1, makes the precision pair of motor power supply system be in the semi-dry friction state, cause the strong wear of precision pair.

2, cause that fuel feeding is the corrosion of smart even part and cylinder.

3, dissolve some mechanical admixture, for example salt is difficult for being removed by filter after salt is dissolved, causes the corrosion of oil supply system precision pair and cylinder.

[model utility content]

To the deficiency that existing technology exists, it is a kind of through helical flow path is set that the purpose of the utility model is to provide, and makes filter cleaner ability cyclone filter, thereby strengthen the novel screw type gasoline filter of filtering effect.

For realizing above-mentioned purpose, the utility model provides following technological scheme: a kind of screw type gasoline filter comprises housing, capping, filter core; Said housing bottom is provided with drain valve; Said filter core is with being provided with supported spring between the housing bottom, and said capping is provided with oil inlet pipe and oil outlet tube, said filter core by upper end cap, lower end cap and be located at upper end cap and lower end cap between the longitudinal folding hollow cylindrical filter paper that constitutes form; Two annular end faces of this filter paper are caught up with end cap and the fixing bonding of lower end cap respectively; It is characterized in that: said upper end cap also is provided with oil road, and this oil road is communicated with oil outlet tube, and said filter paper center also is provided with filter shaft; Filter shaft is provided with helical flow path all over the body, and helical flow path is communicated with oil road.

Through adopting technique scheme; Gasoline once filters through filter paper and flows into the filter paper inboard; Helical flow path on filter shaft flows to the oil road rotation of upper end cap then; The centrifugal force of the gasoline generation that the area of contact of the gasoline after the effective increase of rotating flow kinetic energy is once filtered and the folded part of filter paper, rotation simultaneously flow also can further get rid of moisture residual in the gasoline and impurity to filter paper, thereby remaining impurity is carried out secondary filter; The moisture that throws away also can precipitate once more, thereby the gasoline that flows into oil road is more cleaned.

The utility model further is set to: said filter shaft hollow; Two end faces of filter shaft are tightly connected with upper end cap and lower end cap respectively; Also be provided with oil input channel on the said upper end cap, this oil input channel one end is communicated with the axis hole of oil inlet pipe and filter shaft, and an end is communicated with the deposition chamber of housing.

Through adopting technique scheme; The gasoline that flows in the oil inlet pipe can flow into the axis hole of filter shaft earlier; The moisture that contains in the gasoline can here once precipitate in advance; Increased the filtering effect of filter cleaner, filter in the deposition chamber that flows into filter cleaner afterwards again, and it is to prevent that the gasoline in the axis hole from directly infiltrating the filter paper inner chamber that two end faces of filter shaft are tightly connected with upper and lower end cap respectively.

The utility model further is set to: also be provided with at least 1 choked flow mouth on the said helical flow path.

In above-mentioned the setting, it is for the runner that makes helical flow path narrows down that the choked flow mouth is set, thereby the gasoline flow velocity on the helical flow path is accelerated, and strengthen the filtering effect of eddy flow, and the choked flow wall of choked flow mouth also can play the effect that stops to moisture.

The utility model further is set to: said helical flow path closely cooperates with filter paper inwall formation.

Above-mentioned setting is to flow in order to make gasoline can better prolong helical flow path, stop gasoline between helical flow path and the filter paper inwall the gap directly rise, strengthen the filtering effect of eddy flow.

The utility model further is set to: the oil road below of said upper end cap is provided with the noise elimination piece.

This is provided with the noise that can effectively reduce filter cleaner.

The utility model further is set to: also be provided with outlet valve on the said capping sub-assembly.

During this is provided with, can let the filter cleaner pressure release, guarantee the filter cleaner long-term stable operation through outlet valve.

The utility model further is set to: said lower end cap is provided with buckle, and said supported spring is fixedly connected with lower end cap through this buckle.

This is provided with and can guarantees the stable of supported spring and filter core, prevents filter cleaner in vibrations, supported spring displacement filter core occurs and tilts and the supported spring obscission.

The utility model is ingenious must to be provided with helical flow path at the filter core outer wall, thereby makes filter cleaner ability cyclone filter, has strengthened filtering effect greatly; Simple in structure; With low cost, and in filter cleaner, set up noise elimination piece and gas bleeder valve, improved the whole usability of filter cleaner.

Below in conjunction with accompanying drawing the utility model is further described:

[description of drawings]

Fig. 1 is the utility model embodiment's a structural representation;

Fig. 2 is the utility model embodiment's a filter cartridge construction schematic representation;

Fig. 3 is the plan view of the utility model embodiment's filter shaft;

Fig. 4 is the front view of the utility model embodiment's filter shaft;

Fig. 5 is the side view of the utility model embodiment's filter shaft;

Fig. 6 is the worm's eye view of the utility model embodiment's upper end cap;

Fig. 7 is the A-A sectional view of Fig. 6;

Fig. 8 is the B-B sectional view of Fig. 7;

Fig. 9 is the plan view of the utility model embodiment's upper end cap;

Figure 10 is that the P of Fig. 7 is to part sectioned view;

Figure 11 is the I portion enlarged view of Fig. 7;

Figure 12 is the front view of the utility model embodiment's capping;

Figure 13 is the plan view of the utility model embodiment's capping;

Figure 14 is the structural representation of the utility model embodiment's lower end cap.

[embodiment]

Referring to Fig. 1, the disclosed screw type gasoline filter of the utility model comprises housing 1, capping 2, filter core 3; Housing 1 bottom is provided with drain valve 11, and filter core 3 is provided with supported spring 4 with between housing 1 bottom, and supported spring 4 is with isolating a deposition chamber 12 between filter core 3 and the housing 1; Capping 2 is provided with oil inlet pipe 21 and oil outlet tube 22, filter core 3 by upper end cap 31, lower end cap 32 and be located at upper end cap 31 and lower end cap 32 between the longitudinal folding hollow cylindrical filter paper 33 that constitutes forms, two annular end faces of this filter paper 33 are caught up with end cap 31, lower end cap 32 fixing bondings respectively; Upper end cap 31 also is provided with in the hole of oil road 311, and referring to Fig. 9, Figure 12, Figure 13, oil outlet tube 22 just in time is fitted in the fuel-displaced on 311 of Fig. 9; Oil road 311 is communicated with oil outlet tube 22; Filter paper 33 centers also are provided with filter shaft 34, and filter shaft 34 whole body are provided with helical flow path 341; Referring to Fig. 6 to Fig. 9, helical flow path 341 is communicated with oil road 311.

Like this; Gasoline once filters through filter paper 33 and flows into filter paper 33 inboards; Helical flow path on filter shaft 34 341 flows to oil road 311 rotations of upper end cap 31 then; The centrifugal force of the gasoline generation that the area of contact of the gasoline after the effective increase of rotating flow kinetic energy is once filtered and the folded part of filter paper 33, rotation simultaneously flow also can further get rid of moisture residual in the gasoline and impurity to filter paper 33, thereby remaining impurity is carried out secondary filter; The moisture that throws away also can precipitate once more, thereby the gasoline that flows into oil road 311 is more cleaned.

Referring to Figure 12, Figure 13, capping 2 is provided with oil inlet pipe 21 and oil outlet tube 22, referring to Fig. 9; Oil inlet pipe 21 just in time is to be fitted in the hole of oil input channel 312, both runner conductings, and the center hole 315 follow-up oil ducts 312 on the upper end cap 31 also are conductings; Referring to Fig. 7, Figure 10, Figure 11; Oil input channel 312 is communicated to the outside of upper end cap 31 through the outlet of a prolate shape, referring to Fig. 2, Fig. 3, Fig. 4, and filter shaft 34 hollows; Two end faces of filter shaft 34 are tightly connected with upper end cap 31 and lower end cap 32 respectively; Center hole 315 is with axis hole 342 conductings of filter shaft 34, and oil input channel 312 1 ends are communicated with the axis hole 342 of oil inlet pipe 21 and filter shaft 34, and an end is communicated with the deposition chamber 12 of housing 1.

Like this; The gasoline of 21 li inflows of oil inlet pipe can flow into the axis hole 342 of filter shaft 34 earlier; The moisture that contains in the gasoline can here once precipitate in advance; Increased the filtering effect of filter cleaner, filter in the deposition chamber 12 that flows into filter cleaner afterwards again, and it is to prevent that the gasoline in the axis hole from directly infiltrating filter paper 33 inner chambers that two end faces of filter shaft 34 are tightly connected with upper end cap 31 and lower end cap 32 respectively.

Referring to Fig. 5, the helical flow path 341 of present embodiment is provided with 5 and prolongs the choked flow 343 that same axis is provided with.

Choked flow mouth 343 can make the runner of helical flow path 341 narrow down, thereby the gasoline flow velocity on the helical flow path 341 is accelerated, and strengthens the filtering effect of eddy flow.

In the present embodiment, helical flow path 341 closely cooperates with filter paper 33 inwalls formation.

It is mobile that gasoline can better prolong helical flow path 341 like this; Stop gasoline between helical flow path 341 and filter paper 33 inwalls the gap directly rise; Strengthen the filtering effect of eddy flow, in fact the scheme of Spielpassung also is feasible certainly, is close-fitting best results.

In the present embodiment, oil road 311 belows of upper end cap 31 are provided with noise elimination piece 313, and noise elimination piece 313 is fixing through position shelf 314, noise elimination piece 313 the noise that can effectively reduce filter cleaner is set.

As shown in Figure 1, also be provided with outlet valve 23 in the capping 2 of present embodiment, can let the filter cleaner pressure release through outlet valve 23, guarantee the filter cleaner long-term stable operation.

Shown in figure 14, the lower end cap 32 of present embodiment is provided with buckle 321, and supported spring 4 is fixedly connected with lower end cap 32 through buckle 321.Adopt this structure,, supported spring 4 displacement filter cores 3 occur and tilt and supported spring 4 obscissions so long as, prevent filter cleaner in vibrations in order to guarantee the stable of supported spring 4 and filter core 3.

Claims

1. a screw type gasoline filter comprises housing, capping, filter core, and said housing bottom is provided with drain valve; Said filter core is with being provided with supported spring between the housing bottom, and said capping is provided with oil inlet pipe and oil outlet tube, said filter core by upper end cap, lower end cap and be located at upper end cap and lower end cap between the longitudinal folding hollow cylindrical filter paper that constitutes form; Two annular end faces of this filter paper are caught up with end cap and the fixing bonding of lower end cap respectively; It is characterized in that: said upper end cap also is provided with oil road, and this oil road is communicated with oil outlet tube, and said filter paper center also is provided with filter shaft; Filter shaft is provided with helical flow path all over the body, and helical flow path is communicated with oil road.

2. screw type gasoline filter according to claim 1; It is characterized in that: said filter shaft hollow; Two end faces of filter shaft are tightly connected with upper end cap and lower end cap respectively; Also be provided with oil input channel on the said upper end cap, this oil input channel one end is communicated with the axis hole of oil inlet pipe and filter shaft, and an end is communicated with the deposition chamber of housing.

3. screw type gasoline filter according to claim 1 is characterized in that: also be provided with at least 1 choked flow mouth on the said helical flow path.

4. screw type gasoline filter according to claim 1 is characterized in that: said helical flow path closely cooperates with filter paper inwall formation.

5. screw type gasoline filter according to claim 1 is characterized in that: said lower end cap is provided with buckle, and said supported spring is fixedly connected with lower end cap through this buckle.

6. screw type gasoline filter according to claim 1 is characterized in that: the oil road below of said upper end cap is provided with the noise elimination piece.

7. screw type gasoline filter according to claim 1 is characterized in that: also be provided with outlet valve in the said capping.