CN202718788U - Filtering seat with one-way oil way - Google Patents
Filtering seat with one-way oil way Download PDFInfo
- Publication number
- CN202718788U CN202718788U CN 201220271849 CN201220271849U CN202718788U CN 202718788 U CN202718788 U CN 202718788U CN 201220271849 CN201220271849 CN 201220271849 CN 201220271849 U CN201220271849 U CN 201220271849U CN 202718788 U CN202718788 U CN 202718788U
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- CN
- China
- Prior art keywords
- way valve
- way
- guide rod
- oil
- filter block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a filtering seat with a one-way oil way. A one-way valve is arranged above an oil outlet of the filtering seat, and the one-way valve is a spring preload one-way valve or a diaphragm type one-way valve or a piston type one-way valve. The spring preload one-way valve comprises a guide rod, one end of the guide rod stretches into a guide rod groove of the filtering seat, the bottom of the other end of the guide rod is provided with a rubber piece capable of sealing an oil outlet of the filtering seat, and a coiled spring is arranged on the periphery of the guide rod. The filtering seat with the one-way oil way can maintain fuels in a pipeline when an engine starts up for a second time, and no start-up difficulty caused by temporary fuel cut-off appears. The filtering seat of the one-way oil way is simple in structure, convenient to use, low in cost, and is suitable for popularization and application.
Description
Technical field
The utility model relates to a kind of auto parts and components, especially relates to unidirectional oil circuit filter block.
Background technique
In automobile dynamic system, fuel filter provides clean fuel oil for automobile power.In the car load layout, be contained in below the vehicle bridge because of fuel tank 1, prefilter 2 is contained in filter block 3 belows, filter block 3 is contained in the vehicle bridge side, oil transfer pump 4 is contained in the vehicle bridge top, so the layout of 4 parts is ladder layouts, be that oil transfer pump 4 positions are higher than filter block 3, filter block 3 is higher than prefilter 2, sees accompanying drawing 1 and prefilter 2 is higher than fuel tank 1().Under suction function, fuel oil enters combustion system with oil transfer pump 4, such as the accompanying drawing 1 equilateral triangle direction of arrow; but this species stage layout is after shutting down a period of time; because Action of Gravity Field, the diesel oil Air may enter into oil transfer pump, and the pipeline intermediate fuel oil is got back to fuel tank 1(and seen accompanying drawing 1 long and narrow arrow).When restarting because air can not in time be supplied with fuel oil, even because air quantity when larger oil transfer pump 4 can not suck fuel oil, thereby cause difficulty in starting.
Summary of the invention
Technical problem to be solved in the utility model is to overcome in the prior art and enters oil transfer pump because the ladder layout causes the diesel oil Air, when restarting, because of air fuel oil can not in time be supplied with, even because air quantity when larger oil transfer pump can not suck the defective of fuel oil, provide a kind of when engine secondary starts, the maintenance in the pipeline fuel oil to be arranged, the unidirectional oil circuit filter block of of short duration oil-break difficulty in starting can not occur.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of unidirectional oil circuit filter block, it is characterized in that, and an one-way valve is set above the filter block oil outlet.
Described one-way valve is spring precompressed one-way valve or diaphragm type one-way valve or plunger type one-way valve.
Described spring precompressed one-way valve comprises a guide rod, and described guide rod one end extend in the stem guiding trough of filter block, and a sheet rubber that can seal the filter block oil outlet is arranged at described guide rod the other end bottom, and described guide rod periphery is provided with a helical spring.
The utility model has the advantages that:
1. unidirectional oil circuit filter block of the present utility model can keep having in the pipeline fuel oil when engine secondary starts, and of short duration oil-break difficulty in starting can not occur.
Unidirectional oil circuit filter block of the present utility model is simple in structure, easy to use, and cost is low, is suitable for promoting the use of.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is prior art intermediate fuel oil system architecture schematic representation and part placement figure;
Fig. 2 is unidirectional oil circuit filter block opening state schematic representation of the present utility model;
Fig. 3 is unidirectional oil circuit filter block closed state schematic representation of the present utility model.
Wherein: 1 fuel tank, 2 prefilters, 3 filter blocks, 4 oil transfer pumps, 6 sheet rubbers, 7 springs, 8 guide rods, 81 stem guiding troughs, 9 are embedded in the steel joint in the filter block.
Embodiment
Embodiment:
Such as Fig. 2, the preferred embodiment of the present utility model that Fig. 3 shows, described spring precompressed one-way valve comprises a guide rod 8, described guide rod 8 one ends extend in the stem guiding trough 81 of filter block, one sheet rubber 6 that can seal steel joint 9 oil outlets is arranged at described guide rod 8 the other ends bottom, and described guide rod 8 peripheries are provided with a helical spring 7.The moving direction of 81 pairs of guide rods of stem guiding trough plays the effect of location.
When engine start, because suction function, spring 7 compressions make sheet rubber 6 separate with the oil outlet of steel joint 9, and fuel oil enters the firing chamber.When engine shutdown, suction function disappears, and guide rod 8 presses down sheet rubber 6 at spring 7 pressure-actings, makes sheet rubber 6 and the sealing of steel joint 9 oil outlets, and fuel oil can not got back to fuel tank.
In another embodiment of the present utility model, described one-way valve can be diaphragm type one-way valve; Among another embodiment, described one-way valve can be the plunger type one-way valve.
Certainly, above-described embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow people can understand content of the present invention and implements according to this, can not limit protection scope of the present invention with this.The all Spirit Essence of main technical schemes is done according to the present invention equivalent transformation or modification all should be encompassed within protection scope of the present invention.
Claims (2)
1. unidirectional oil circuit filter block is characterized in that, an one-way valve is set above the filter block oil outlet; Described one-way valve is spring precompressed one-way valve or diaphragm type one-way valve or plunger type one-way valve.
2. unidirectional oil circuit filter block according to claim 1, it is characterized in that, described spring precompressed one-way valve comprises a guide rod, described guide rod one end extend in the stem guiding trough of filter block, one sheet rubber that can seal the filter block oil outlet is arranged at described guide rod the other end bottom, and described guide rod periphery is provided with a helical spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220271849 CN202718788U (en) | 2012-06-11 | 2012-06-11 | Filtering seat with one-way oil way |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220271849 CN202718788U (en) | 2012-06-11 | 2012-06-11 | Filtering seat with one-way oil way |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202718788U true CN202718788U (en) | 2013-02-06 |
Family
ID=47620613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220271849 Expired - Lifetime CN202718788U (en) | 2012-06-11 | 2012-06-11 | Filtering seat with one-way oil way |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202718788U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613054A (en) * | 2015-01-28 | 2015-05-13 | 内蒙古北方重工业集团有限公司 | Oil spillage preventing air filtering device |
-
2012
- 2012-06-11 CN CN 201220271849 patent/CN202718788U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613054A (en) * | 2015-01-28 | 2015-05-13 | 内蒙古北方重工业集团有限公司 | Oil spillage preventing air filtering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SUZHOU DIFITE (SIP) CO., LTD. Free format text: FORMER NAME: SUZHOU INDUSTRIAL PARK, DIFITE CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 215123, No. 22, Sheng Sheng Road, Sheng Town, Suzhou Industrial Park, Jiangsu Patentee after: The special filtering technique limited company of Suzhou Tamiflu Address before: 22 No. 215126 Sheng Road, Suzhou Industrial Park, Jiangsu, China Patentee before: DIFITE (SIP) Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130206 |