CN201810436U - Self-sealed fuel oil pre-filtering device for engineering machinery - Google Patents
Self-sealed fuel oil pre-filtering device for engineering machinery Download PDFInfo
- Publication number
- CN201810436U CN201810436U CN2010205423071U CN201020542307U CN201810436U CN 201810436 U CN201810436 U CN 201810436U CN 2010205423071 U CN2010205423071 U CN 2010205423071U CN 201020542307 U CN201020542307 U CN 201020542307U CN 201810436 U CN201810436 U CN 201810436U
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- China
- Prior art keywords
- shell
- valve core
- fuel oil
- engineering machinery
- way valve
- 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 - Fee Related
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- 239000000295 fuel oil Substances 0.000 title claims abstract description 27
- 238000001914 filtration Methods 0.000 title abstract description 5
- 239000003921 oil Substances 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 239000010705 motor oil Substances 0.000 claims abstract description 7
- 239000002828 fuel tank Substances 0.000 claims description 7
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010761 intermediate fuel oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a self-sealed fuel oil pre-filtering device for engineering machinery, which belongs to the technical field of engineering machinery and aims to solve the problem that the traditional fuel oil pre-filtering device for engineering machinery is inconvenient to clean. The technical scheme is that: the device comprises a vertical drum-shaped shell as well as a one-way valve core and a filter element in the shell; the upper end of the shell extends into a fuel oil tank, and the middle part of the shell is connected with the bottom of the fuel oil tank; the one-way valve core is a round table or step cylindrical body with a thick upper part and a thin lower part; the upper end of the one-way valve core is connected with the shell through a compression spring; the inner wall of the shell is provided with a conical surface matching with the one-way valve core; the filter element is located below the one-way valve core; the upper end of the filter element is pressed against the lower end of the one-way valve core, and the lower end of the filter element is in sealed connection with the shell; and the inner cavity of the filter element is connected with an engine oil inlet pipe through an oil outlet on one side of the shell. Through the utility model, the fuel oil for engineering machinery can be pre-filtered, a self-sealing function is realized, the special valve is not needed when the filter element is cleaned or replaced, and the self-sealed fuel oil pre-filtering device has the advantages of small volume, low cost and the like and is convenient to clean.
Description
Technical field
The utility model relates to a kind of engineering machinery of being convenient to clean fuel oil pre-filtrating equipment, belongs to technical field of engineering machinery.
Background technique
At present, engineering machinery oil-fired system great majority are not installed the fuel oil pre-filtrating equipment, because the working environment very severe of engineering machinery, oil-fired system is very easily contaminated, thereby the impurity in the fuel oil is more, directly use to be easy to cause the motor oil inlet pipe to stop up.Though the minority engineering machinery has been installed the fuel oil pre-filtrating equipment, but because existing fuel oil pre-filtrating equipment do not have the oil sealing function, must be between fuel tank oil outlet and fuel oil pre-filtrating equipment mounted valve, when cleaning fuel oil pre-filtrating equipment, elder generation's throttle down is in case fuel leakage.This fuel oil pre-filtrating equipment not only takes up room greatly, the cost height, and clean inconvenient.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide that a kind of volume is little, cost is low, clean easily engineering machinery with self sealing fuel oil pre-filtrating equipment.
The alleged problem of the utility model realizes with following technical proposals:
A kind of engineering machinery comprises the nonreturn valve core and the filter core of vertical cylindrical case and enclosure with self sealing fuel oil pre-filtrating equipment in the formation, described shell upper end is stretched in the fuel tank, and the middle part is connected with at the bottom of the fuel tank by drain pan; Described nonreturn valve core is upper coarse and lower fine round platform or stepped cylindrical body, and its upper end is connected with shell by stage clip, and wall is provided with the conical surface that is complementary with nonreturn valve core in the enclosure; Described filter core is positioned at the below of nonreturn valve core, and its upper end roof pressure is in the lower end of nonreturn valve core, and the lower end is connected with body seal, and the inner chamber of filter core is connected with the motor oil inlet pipe by the oil outlet of shell one side.
Above-mentioned engineering machinery is with self sealing fuel oil pre-filtrating equipment, described nonreturn valve core be provided with outer casing inner wall on the corresponding one-way valve seal ring of the conical surface.
Above-mentioned engineering machinery self sealing fuel oil pre-filtrating equipment, described side wall of outer shell is provided with oil inlet hole, and described oil inlet hole is positioned at the top of the conical surface on the outer casing inner wall.
The utility model utilizes filter core that the fuel oil that enters the motor oil inlet pipe is filtered, and prevents that oil inlet pipe from stopping up, and makes engineering machinery can adapt to abominable working environment; Nonreturn valve core can prevent fuel leakage cleaning or more during renew cartridge, closing oil circuit automatically.Compare with traditional pre-filtrating equipment, the utility model not only can carry out pre-filtering with fuel oil to engineering machinery, and has self-styled function, cleans or more need not to use special valve during renew cartridge, has advantages such as volume is little, cost is low, cleaning is convenient.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a scheme of installation of the present utility model.
Each label is among the figure: 1, filter core; 2, shell; 3, drain pan; 4, nonreturn valve core; 5, stage clip; 6, blanking cover; 7, back-up ring; 8, one-way valve seal ring; 9, oil inlet hole; 10, motor oil inlet pipe; 11, filter core seal ring; 12, fuel tank; 13, motor return tube; 14, self sealing pre-filtrating equipment; 15, oil discharging valve; 16, the conical surface.
Embodiment
Referring to Fig. 1, the utility model is used for the impurity of filter fuel case intermediate fuel oil, mainly is made up of cylindrical case 2, filter core 1, nonreturn valve core 4, stage clip 5.Cylindrical case 2 is vertically placed, and welds together with drain pan 3; Back-up ring 7 is contained in the circular groove at shell 2 tops it and carries out spacing with the blanking cover 6 of annular to the upper end of stage clip 5.During assembling, nonreturn valve core 4, stage clip 5, blanking cover 6, back-up ring 7 are packed into from the upper end of cylindrical case 2 successively, and filter core 1 is then packed into from the lower end of cylindrical case 2.Filter core 1 and shell 2 are by being threaded, be provided with two filter core seal rings 11 between the two, when filter core 1 is screwed into shell 2, stage clip 5 is compressed, and nonreturn valve core 4 is by jack-up, and this moment, oil circuit was unimpeded, fuel oil in the fuel tank 12 enters shell 2 inside by the upper end and the oil inlet hole on the sidewall 9 of shell 2, gap between nonreturn valve core 4 and shell 2 is to dirty then, enters behind the inner chamber of filter core 1 from the oil outlet inflow engine oil inlet pipe 10 of shell 2 one sides, enters into motor at last.
When filter core 1 was pulled down and cleaned, nonreturn valve core 4 and contacted with the conical surface in the shell 2 because the effect of deadweight and its upper end stage clip 5 descends, and oil circuit is sealed at this moment, and fuel oil can not leak, and one-way valve seal ring 8 is used to improve self-styled effect.Nonreturn valve core 4 is upper coarse and lower fine stepped cylindrical body among Fig. 1, also can make upper coarse and lower fine round table-likely when specifically implementing, and the conical surface on the side of round platform and shell 2 inwalls is complementary.
Claims (3)
1. an engineering machinery is with self sealing fuel oil pre-filtrating equipment, it is characterized in that, during constituting, filtrating equipment comprises nonreturn valve core (4) and filter core (1) that vertical cylindrical case (2) and shell (2) are inner, described shell (2) upper end is stretched in the fuel tank (12), and the middle part is connected with at the bottom of the fuel tank by drain pan (3); Described nonreturn valve core (4) is upper coarse and lower fine round platform or stepped cylindrical body, and its upper end is connected with shell (2) by stage clip (5), and shell (2) inwall is provided with the conical surface (16) that is complementary with nonreturn valve core (4); Described filter core (1) is positioned at the below of nonreturn valve core (4), and its upper end roof pressure is in the lower end of nonreturn valve core (4), and lower end and shell (2) are tightly connected, and the inner chamber of filter core (1) is connected with motor oil inlet pipe (10) by the oil outlet of shell (2) one sides.
According to the described engineering machinery of claim 1 with self sealing fuel oil pre-filtrating equipment, it is characterized in that, described nonreturn valve core (4) be provided with shell (2) inwall on the corresponding one-way valve seal ring of the conical surface (16) (8).
3. according to claim 1 or 2 described engineering machinery self sealing fuel oil pre-filtrating equipment, it is characterized in that described shell (2) sidewall is provided with oil inlet hole (9), described oil inlet hole (9) is positioned at the top of the conical surface (16) on shell (2) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205423071U CN201810436U (en) | 2010-09-26 | 2010-09-26 | Self-sealed fuel oil pre-filtering device for engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205423071U CN201810436U (en) | 2010-09-26 | 2010-09-26 | Self-sealed fuel oil pre-filtering device for engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201810436U true CN201810436U (en) | 2011-04-27 |
Family
ID=43893378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205423071U Expired - Fee Related CN201810436U (en) | 2010-09-26 | 2010-09-26 | Self-sealed fuel oil pre-filtering device for engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201810436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118881490A (en) * | 2024-09-27 | 2024-11-01 | 新乡市华航航空液压设备有限公司 | A fuel double filter |
-
2010
- 2010-09-26 CN CN2010205423071U patent/CN201810436U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118881490A (en) * | 2024-09-27 | 2024-11-01 | 新乡市华航航空液压设备有限公司 | A fuel double filter |
| CN118881490B (en) * | 2024-09-27 | 2025-06-27 | 新乡市华航航空液压设备有限公司 | Fuel oil duplex filter |
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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 |
Granted publication date: 20110427 Termination date: 20160926 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |