CN204553028U - A kind of novel two-stage series connection fuel oil filtering system - Google Patents
A kind of novel two-stage series connection fuel oil filtering system Download PDFInfo
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- CN204553028U CN204553028U CN201520130619.4U CN201520130619U CN204553028U CN 204553028 U CN204553028 U CN 204553028U CN 201520130619 U CN201520130619 U CN 201520130619U CN 204553028 U CN204553028 U CN 204553028U
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- strainer
- oil
- secondary filter
- filter
- inlet passage
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Abstract
The utility model discloses a kind of novel two-stage series connection fuel oil filtering system, this system mainly comprises filter seat, strainer, secondary filter three parts, strainer connecting tube bolt is provided with bottom described filter seat, secondary filter connecting tube bolt, described have strainer connecting tube bolt to be connected with strainer, described secondary filter connecting tube bolt is connected with secondary filter, described filter seat is also provided with strainer oil discharge passage, strainer oil suction chamber, strainer oil inlet passage, steel ball, secondary filter oil discharge passage, secondary filter oil suction chamber, secondary filter oil inlet passage, described steel ball is located between strainer oil suction chamber and strainer oil inlet passage.The utility model connection and reasonable arrangement, compact structure, effectively reduces the pressure difference of whole oil-fired system, reduces oil-fired system flow resistance.
Description
Technical field
The utility model relates to fuel oil filtering system field, in particular, and the particularly novel two-stage series connection fuel oil filtering system of one.
Background technique
In present fuel oil filtering system, the strainer primarily of band water separation function is in series with the secondary filter bearing fine filtering.Common two-stage filtration system, strainer, secondary filter integrated series are arranged, in this layout, two-stage fuel oil filter entirety can only be arranged in the side of oil transfer pump, if integral arrangement is in oil transfer pump front end, then be in negative pressure side, the fuel oil filtering system flow resistance being in negative pressure end is relatively higher, after being especially to use a period of time, flow resistance rises fast, and then affects startup performance of engine and power character; If be arranged in oil transfer pump outlet end, the fuel filter entirety of then connecting is in positive pressure side, positive pressure side filter needs to bear the even larger pressure of 800kPa, and strainer is owing to bearing water separation function, containing water storage cup or water drain valve structure, the withstand voltage properties of water storage cup or discharging valve is relatively poor, and therefore the fuel oil filter of two-stage series connection is arranged in positive pressure side, there is larger hidden danger.
Also have fuel preliminary filter and secondary fuel oil filter to adopt filtering scheme arranged apart, strainer is generally arranged in the pipeline between oil transfer pump entrance and fuel tank, is in negative pressure end side; Secondary filter is then arranged in the pipeline between oil transfer pump outlet and high-pressure service pump, be in positive pressure side side, the drawback that better can solve the integrated layout of above-mentioned two-stage series connection arranged apart, but take the arrangement space that motor is larger, complete machine is arranged unsightly, compact with engine structure, the designs direction of volume miniaturization is not inconsistent.
Model utility content
It is arranged apart that the utility model object is to overcome strainer and secondary filter in above-mentioned existing two-stage fuel oil filtering system, and integrated layout intermediate fuel oil filter entirety is in the deficiency that positive pressure side or entirety are in negative pressure end, and a kind of connection and reasonable arrangement, compact structure are provided, effectively reduce the novel two-stage series connection fuel oil filtering system of oil-fired system flow resistance.
In order to solve the problem, the utility model realizes by the following technical solutions: a kind of novel two-stage series connection fuel oil filtering system, this system mainly comprises filter seat, strainer, secondary filter three parts, strainer connecting tube bolt is provided with bottom described filter seat, secondary filter connecting tube bolt, described have strainer connecting tube bolt to be connected with strainer, described secondary filter connecting tube bolt is connected with secondary filter, described filter seat is also provided with strainer oil discharge passage, strainer oil suction chamber, strainer oil inlet passage, steel ball, secondary filter oil discharge passage, secondary filter oil suction chamber, secondary filter oil inlet passage, described steel ball is located between strainer oil suction chamber and strainer oil inlet passage.
Further, described strainer oil inlet passage is coaxial with secondary filter oil inlet passage, and the axis of strainer oil discharge passage and secondary filter oil discharge passage is parallel to each other, described strainer oil discharge passage and strainer oil inlet passage axes normal.
Further, described strainer is provided with strainer filter front interior cavity and strainer filter rear interior cavity, and described secondary filter is provided with secondary filter filter front interior cavity and secondary filter filter rear interior cavity.
Further, described strainer filter front interior cavity is connected with strainer oil inlet passage, strainer filter rear interior cavity is connected with strainer oil discharge passage, and described secondary filter filter front interior cavity is connected with secondary filter oil inlet passage, and secondary filter filter rear interior cavity is connected with secondary filter oil discharge passage.
Further, described strainer oil inlet passage is connected with fuel tank oil outlet by pipeline, strainer oil discharge passage is connected with oil transfer pump entrance by pipeline, secondary filter oil inlet passage to be exported with oil transfer pump by pipeline and is connected, secondary filter oil discharge passage is connected with high-pressure service pump by pipeline, and high-pressure service pump is connected with tank drainback mouth by return line.
Further, described strainer oil inlet passage adopts die casting to loose core shaping, and strainer oil inlet passage inwall is provided with pattern draft, and steel ball and strainer oil inlet passage inwall form interference fit.
The technological scheme that the utility model adopts has following beneficial effect: on a filter seat, be integrated with fuel preliminary filter and secondary fuel oil filter, the oil discharge passage of strainer is not directly communicated with the oil inlet passage of secondary filter, strainer oil discharge passage connects oil transfer pump entrance by pipeline, secondary filter oil inlet passage connects oil transfer pump outlet by pipeline, realize strainer and be positioned at negative pressure end, secondary filter is positioned at the reasonable Arrangement of positive pressure side, and filter filter rear interior cavity is coaxial with oil discharge passage, straight-through type linkage structure can reduce oil duct resistance, the pressure difference of the whole oil-fired system of effective reduction.The utility model makes two-stage fuel oil filtering system connection and reasonable arrangement, and compact structure reduces oil-fired system flow resistance.
Accompanying drawing explanation
Fig. 1 is the utility model front view;
Fig. 2 is the utility model sectional view;
Fig. 3 is the utility model plan view;
Fig. 4 is the utility model filter seat sectional view;
Fig. 5 is the utility model pipeline connection diagram.
Embodiment
The technical solution of the utility model is further illustrated by embodiment below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of novel two-stage series connection fuel oil filtering system, this system mainly comprises filter seat 1, strainer 2, secondary filter 3 three parts, as Fig. 2, shown in Fig. 3, strainer connecting tube bolt 15 is provided with bottom described filter seat 1, secondary filter connecting tube bolt 19, described have strainer connecting tube bolt 15 to be connected with strainer 2, described secondary filter connecting tube bolt 19 is connected with secondary filter 3, described filter seat 1 is also provided with strainer oil discharge passage 11, strainer oil suction chamber 12, strainer oil inlet passage 13, steel ball 14, secondary filter oil discharge passage 16, secondary filter oil suction chamber 17, secondary filter oil inlet passage 18, described steel ball 14 is located between strainer oil suction chamber 12 and strainer oil inlet passage 13, it is shaping that described strainer oil inlet passage 13 adopts die casting to loose core, strainer oil inlet passage 13 inwall is provided with pattern draft, steel ball 14 and strainer oil inlet passage 13 inwall form interference fit.
As shown in Figure 2, described strainer 2 is provided with strainer filter front interior cavity 21 and strainer filter rear interior cavity 22, described secondary filter 3 is provided with secondary filter filter front interior cavity 31 and secondary filter filter rear interior cavity 32, described strainer filter front interior cavity 21 is connected with strainer oil inlet passage 13, strainer filter rear interior cavity 22 is connected with strainer oil discharge passage 11, described secondary filter filter front interior cavity 31 is connected with secondary filter oil inlet passage 18, and secondary filter filter rear interior cavity 32 is connected with secondary filter oil discharge passage 16.
As shown in Figure 4, described strainer oil inlet passage 13 is coaxial with secondary filter oil inlet passage 18, and strainer oil discharge passage 11 is parallel to each other with the axis of secondary filter oil discharge passage 16, described strainer oil discharge passage 11 and strainer oil inlet passage 13 axes normal,
Working principle of the present utility model is as follows: as shown in Figure 5, described strainer oil inlet passage 13 is connected with fuel tank 4 oil outlet by pipeline, strainer oil discharge passage 11 is connected with oil transfer pump 5 entrance by pipeline, secondary filter oil inlet passage 18 to be exported with oil transfer pump 5 by pipeline and is connected, secondary filter oil discharge passage 16 is connected with high-pressure service pump 6 by pipeline, and high-pressure service pump 6 is connected with fuel tank 4 return opening by return line 7.This oil-fired system oil circuit connection order is followed successively by: fuel tank 4 oil outlets → strainer oil inlet passage 13 → strainer oil suction chamber 12 → strainer filter front interior cavity 21 → strainer filter rear interior cavity 22 → strainer oil discharge passage 11 → oil transfer pump 5 entrances → oil transfer pump 5 exports → secondary filter oil inlet passage 18 → secondary filter oil suction chamber 17 → secondary filter filter front interior cavity 31 → secondary filter filter rear interior cavity 32 → secondary filter oil discharge passage 16 → high-pressure service pump 6 → return line 7 → fuel tank 4 return opening.In oil circuit order, strainer 2 is before oil transfer pump 5, and secondary filter 3, after oil transfer pump 5, realizes the integrated layout of strainer 2 negative pressure, secondary filter 3 malleation.In addition, because the filter rear interior cavity of strainer 2, secondary filter 3 is all coaxial with oil discharge passage, straight-through oil circuit, avoid the pressure loss that the structures such as the tortuous revolution of oil duct produce, greatly reduce the flow resistance of fuel oil filtering system, embody two-stage fuel oil filtering system reasonable Arrangement, compact structure, the characteristic of low-resistance design.
More than show and describe basic principle of the present utility model and major character.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. a novel two-stage series connection fuel oil filtering system, this system mainly comprises filter seat (1), strainer (2), secondary filter (3) three parts, it is characterized in that: described filter seat (1) bottom is provided with strainer connecting tube bolt (15), secondary filter connecting tube bolt (19), described have strainer connecting tube bolt (15) to be connected with strainer (2), described secondary filter connecting tube bolt (19) is connected with secondary filter (3), described filter seat (1) is also provided with strainer oil discharge passage (11), strainer oil suction chamber (12), strainer oil inlet passage (13), steel ball (14), secondary filter oil discharge passage (16), secondary filter oil suction chamber (17), secondary filter oil inlet passage (18), described steel ball (14) is located between strainer oil suction chamber (12) and strainer oil inlet passage (13).
2. novel two-stage series connection fuel oil filtering system according to claim 1, it is characterized in that: described strainer oil inlet passage (13) is coaxial with secondary filter oil inlet passage (18), strainer oil discharge passage (11) is parallel to each other with the axis of secondary filter oil discharge passage (16), described strainer oil discharge passage (11) and strainer oil inlet passage (13) axes normal.
3. novel two-stage series connection fuel oil filtering system according to claim 2, it is characterized in that: described strainer (2) is provided with strainer filter front interior cavity (21) and strainer filter rear interior cavity (22), described secondary filter (3) is provided with secondary filter filter front interior cavity (31) and secondary filter filter rear interior cavity (32).
4. novel two-stage series connection fuel oil filtering system according to claim 3, it is characterized in that: described strainer filter front interior cavity (21) is connected with strainer oil inlet passage (13), strainer filter rear interior cavity (22) is connected with strainer oil discharge passage (11), described secondary filter filter front interior cavity (31) is connected with secondary filter oil inlet passage (18), and secondary filter filter rear interior cavity (32) is connected with secondary filter oil discharge passage (16).
5. novel two-stage series connection fuel oil filtering system according to claim 1 or 4, it is characterized in that: described strainer oil inlet passage (13) is connected with fuel tank (4) oil outlet by pipeline, strainer oil discharge passage (11) is connected with oil transfer pump (5) entrance by pipeline, secondary filter oil inlet passage (18) to be exported with oil transfer pump (5) by pipeline and is connected, secondary filter oil discharge passage (16) is connected with high-pressure service pump (6) by pipeline, and high-pressure service pump (6) is connected with fuel tank (4) return opening by return line (7).
6. novel two-stage series connection fuel oil filtering system according to claim 1, it is characterized in that: described strainer oil inlet passage (13) adopts die casting to loose core shaping, strainer oil inlet passage (13) inwall is provided with pattern draft, and steel ball (14) and strainer oil inlet passage (13) inwall form interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520130619.4U CN204553028U (en) | 2015-03-06 | 2015-03-06 | A kind of novel two-stage series connection fuel oil filtering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520130619.4U CN204553028U (en) | 2015-03-06 | 2015-03-06 | A kind of novel two-stage series connection fuel oil filtering system |
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| Publication Number | Publication Date |
|---|---|
| CN204553028U true CN204553028U (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520130619.4U Expired - Fee Related CN204553028U (en) | 2015-03-06 | 2015-03-06 | A kind of novel two-stage series connection fuel oil filtering system |
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| CN (1) | CN204553028U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763565A (en) * | 2015-03-06 | 2015-07-08 | 广西华原过滤系统股份有限公司 | Novel two-stage series fuel oil filter system |
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2015
- 2015-03-06 CN CN201520130619.4U patent/CN204553028U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763565A (en) * | 2015-03-06 | 2015-07-08 | 广西华原过滤系统股份有限公司 | Novel two-stage series fuel oil filter system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 |