CN206513890U - A kind of anti-siphon valve arrangement - Google Patents
A kind of anti-siphon valve arrangement Download PDFInfo
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- CN206513890U CN206513890U CN201720122992.4U CN201720122992U CN206513890U CN 206513890 U CN206513890 U CN 206513890U CN 201720122992 U CN201720122992 U CN 201720122992U CN 206513890 U CN206513890 U CN 206513890U
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- Prior art keywords
- siphon valve
- boss
- pipeline
- spring
- gland
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Abstract
A kind of anti-siphon valve arrangement that the utility model is provided, including pipeline boss, anti-siphon valve and spring, pipeline boss is in Flange-shaped Parts, and pipeline boss is placed coaxially on oil pipeline inwall, pipeline boss top surface is circumferentially provided with through hole, and the outside of through hole is provided with the seal boss of ring-type；The section of anti-siphon valve is T-shaped, the stock of anti-siphon valve is contacted with the center round tube inner wall laminating of pipeline boss, the length of anti-siphon valve stock is more than the length of pipeline boss center pipe, and the stock end of anti-siphon valve, which is equipped with, is connected through a screw thread the gland that mode is secured to；Spring is coaxially set in pipeline boss center circular tube external wall, and the two ends of spring are in contact with pipeline boss and gland respectively.
Description
Technical field
The utility model is related to seal for pipe joints technical field, more particularly to a kind of anti-siphon valve arrangement.
Background technology
Because under aeroengine thrust augmentation state, thermic load is larger, therefore general two kinds of radiatings of setting in oil system
Device, i.e., main to fire oil cooler and reinforcing combustion oil cooler, it is cold to lubricating oil progress that main fuel and reinforcing fuel oil is respectively adopted in it
But.
In parking period after aero-engine parking, the lubricating oil in oil tank can pass through pipeline quilt due to siphonage
It is drawn into engine bearing chamber, lubricating oil can be leak into engine runner when flowing into excessive by each sealing device, polluted.
Utility model content
To overcome the defect that above-mentioned prior art is present, the utility model provides a kind of anti-siphon valve arrangement, is used for
Prevent oil pipeline from producing siphonage, including：
Pipeline boss, it is in Flange-shaped Parts, and pipeline boss is placed coaxially on oil pipeline inwall, and pipeline boss top surface is opened
There are multiple through holes, it is as oil inlet, for making lubricating oil enter in oil system, sealing of the outside provided with ring-type of through hole is convex
Platform；
Anti- siphon valve, its section is T-shaped, and anti-siphon valve is used to block through hole after oil system stops oil transportation, prevents
Siphonage is only produced, the stock of anti-siphon valve is contacted with the center round tube inner wall laminating of pipeline boss, i.e., anti-siphon valve
Piston structure is similar between pipeline boss, the length of anti-siphon valve stock is more than the length of pipeline boss center pipe,
I.e. described stock need to reach the outside of pipeline boss, and the stock end of anti-siphon valve is consolidated equipped with the mode that is connected through a screw thread with it
Fixed gland；
Spring, it is coaxially set on the circular tube external wall of pipeline boss center, the two ends of spring respectively with pipeline boss and pressure
Lid is in contact, and spring is used to produce elastic force, and anti-siphon valve is retracted and blocked by elastic force after oil system stops oil transportation
Through hole, prevents siphonage.
It is preferred that, the one side relative with pipeline boss of anti-siphon valve is coaxially provided with the rubber ring of ring-type, its with it is close
Envelope boss is engaged, the sealing for increasing anti-siphon valve arrangement, and the external diameter of rubber ring is more than the external diameter of seal boss, rubber
The internal diameter of cushion rubber is less than the internal diameter of seal boss, i.e. the top surface of seal boss is fallen completely within the top surface of rubber ring, and both are in cunning
Oil system stops laminating contact in the state of oil transportation.
It is preferred that, the stock end of anti-siphon valve is equipped with the self-locking nut that mode is secured to is connected through a screw thread, certainly
Split nut is located at one end not in contact with spring of gland and opposite with its tight, the steadiness for strengthening gland, makes it be difficult to take off
Fall or mobile.
It is preferred that, the one side touched with spring interface of gland is provided with annular groove, and spring is fallen into the annular groove,
Position for fixing spring.
It is preferred that, the quantity of through hole is six and is circumferentially distributed on pipeline boss.
A kind of anti-siphon valve arrangement that the utility model is provided, by setting pipeline boss, anti-rainbow in oil pipeline
Valve and spring are inhaled, oil system is realized under engine stop working condition, oil pipeline can be closed automatically, anti-on-slip
Lubrication leakage in fuel tank pollutes engine runner to bearing bore, and anti-siphon valve arrangement is arranged inside oil pipeline,
Reduce external engine annex and pipeline, its easy structure improves the maintainability of engine, reduce engine into
This.
Brief description of the drawings
Fig. 1 is the side cutaway view of anti-siphon valve arrangement；
Fig. 2 is the top view of pipeline boss in anti-siphon valve arrangement；
Fig. 3 be engine be in non-Afterburning condition when anti-siphon valve arrangement fundamental diagram；
Fig. 4 be engine be in Afterburning condition when anti-siphon valve arrangement fundamental diagram；
Fig. 5 be engine be in halted state when anti-siphon valve arrangement fundamental diagram.
Reference：Oil pipeline 1, gland 2, anti-siphon valve 3, self-locking nut 4, spring 5, pipeline boss 6, rubber ring
7, seal boss 8, through hole 9.
Embodiment
To make the purpose, technical scheme and advantage of the utility model implementation clearer, below in conjunction with the utility model
Accompanying drawing in embodiment, the technical scheme in the utility model embodiment is further described in more detail.In the accompanying drawings, from beginning
Same or similar element or element with same or like function are represented to same or similar label eventually.Described reality
It is a part of embodiment of the utility model to apply example, rather than whole embodiments.The embodiment described below with reference to accompanying drawing
It is exemplary, it is intended to for explaining the utility model, and it is not intended that to limitation of the present utility model.It is new based on this practicality
Embodiment in type, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of the utility model protection.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " is based on accompanying drawing institutes
The orientation or position relationship shown, is for only for ease of description the utility model and simplifies description, rather than indicate or imply and be signified
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this practicality
The limitation of novel protected scope.
A kind of anti-siphon valve arrangement that the utility model is provided is illustrated below in conjunction with the accompanying drawings.
As shown in Figures 1 and 2, a kind of anti-siphon valve arrangement that the utility model is provided, for preventing oil pipeline 1 from producing
Raw siphonage, including the T-shaped anti-siphon valve 3 in pipeline boss 6 in Flange-shaped Parts, section, coaxially it is set in pipeline boss 6
The spring 5 of center circular tube external wall.
Pipeline boss 6 is placed coaxially on the inwall of oil pipeline 1, and the top surface of pipeline boss 6 is circumferentially provided with six through holes 9,
Through hole 9 is circumferential to be distributed on pipeline boss 6, and it is as oil inlet, for making lubricating oil enter in oil system；
The outside of through hole 9 is provided with the seal boss 8 of ring-type, and the one side relative with pipeline boss 6 of anti-siphon valve 3 is coaxial
Ground is provided with the rubber ring 7 of ring-type, and it is engaged with seal boss 8, the sealing for increasing anti-siphon valve arrangement, rubber ring
7 external diameter is more than the external diameter of seal boss 8, and the internal diameter of rubber ring 7 is less than the top surface of the internal diameter, i.e. seal boss 8 of seal boss 8
In the top surface for falling completely within rubber ring 7, both fit in the state of oil system stops oil transportation and contacted.
Anti- siphon valve 3 is used to block through hole 9 after oil system stops oil transportation, prevents siphonage, anti-siphon
The stock of valve 3 is contacted with the center round tube inner wall laminating of pipeline boss 6, i.e., similar between anti-siphon valve 3 and pipeline boss 6
In piston structure, the length of the anti-stock of siphon valve 3 is more than the length of the center pipe of pipeline boss 6, i.e., described stock is reached
The outside of pipeline boss 6；
The stock end of anti-siphon valve 3 is also equipped with being connected through a screw thread the self-locking nut 4 that mode is secured to, self-locking spiral shell
Mother 4 is located at one end not in contact with spring 5 of gland 2 and opposite with its tight, the steadiness for strengthening gland 2, makes it be difficult to take off
Fall or mobile.
The two ends of spring 5 are in contact with pipeline boss 6 and gland 2 respectively, and spring 5 is used to produce elastic force, and it keeps forever
Opposite power is flowed to 2 one, gland and lubricating oil forever in compressive state, i.e. spring 5, is passed through after oil system stops oil transportation
Anti- siphon valve 3 is retracted and blocks through hole 9 by elastic force, prevents siphonage；
The stock end of anti-siphon valve 3 equipped with being connected through a screw thread the gland 2 that mode is secured to, gland 2 with bullet
The one side that spring 5 is in contact is provided with annular groove, and spring 5 is fallen into the annular groove, the position for fixing spring 5.
The utility model is described in further detail below by specific embodiment.
Specific embodiment：
As shown in figure 3, when engine be in non-augmented operation when, lubricating oil stream as shown by the arrows in Figure 3, lubricating oil system
System is in into oil condition, and lubricating oil enters and acted on anti-siphon valve 3 from the entrance of oil pipeline 1, because the oil pressure of lubricating oil is big
In the elastic force of spring 5, therefore lubricating oil pushes anti-siphon valve 3 open, enters oil system at six through holes 9 on pipeline boss 6,
And now because anti-siphon valve 3 is open, the gland 2 and self-locking nut 4 being fixed thereon similarly are moved axially,
Therefore spring 5 is glanded 2 extruding and produces savings elastic potential energy.
As shown in figure 4, when engine be in augmented operation when, lubricating oil stream as shown by the arrows in Figure 4, oil system
Be in into oil condition, it is identical when the state of anti-siphon valve arrangement is with non-augmented operation, difference be the stream of lubricating oil not
Together.
As shown in figure 5, when engine be in be stopped state when, lubricating oil stream as shown by the arrows in Figure 5, oil system
In oil condition is not entered, anti-siphon valve 3, therefore gland 2 and self-locking nut 4 quilt in the presence of spring 5 are promoted without lubricating oil
Retract, therefore anti-siphon valve 3 is also pulled, the rubber ring 7 on anti-siphon valve 3 is pasted with the seal boss 8 on pipeline boss 6
Splice grafting is touched, and is formed a seal face, is realized the sealing of oil pipeline 1.
It is described above, embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any one skilled in the art is in the technical scope that the utility model is disclosed, the change that can be readily occurred in
Change or replace, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with described
Scope of the claims is defined.
Claims (5)
1. a kind of anti-siphon valve arrangement, it is characterised in that including：
Pipeline boss (6), it is in Flange-shaped Parts, and pipeline boss (6) is placed coaxially on oil pipeline (1) inwall, pipeline boss
(6) top surface is provided with multiple through holes (9), and the outside of through hole (9) is coaxially provided with the seal boss (8) of ring-type；
Anti- siphon valve (3), its section is T-shaped, the stock of anti-siphon valve (3) and the center round tube inner wall of pipeline boss (6)
Laminating contact, the length of anti-siphon valve (3) stock is more than the length of pipeline boss (6) center pipe, anti-siphon valve (3)
Stock end is equipped with and is connected through a screw thread the gland (2) that mode is mutually fixed with it；
Spring (5), it is coaxially set on the circular tube external wall of pipeline boss (6) center, the two ends of spring (5) respectively with pipeline boss
(6) it is in contact with gland (2).
2. anti-siphon valve arrangement according to claim 1, it is characterised in that anti-siphon valve (3) with pipeline boss
(6) relative one side is coaxially provided with the rubber ring (7) of ring-type, and the external diameter of rubber ring (7) is more than the external diameter of seal boss (8),
The internal diameter of rubber ring (7) is less than the internal diameter of seal boss (8).
3. anti-siphon valve arrangement according to claim 1, it is characterised in that the stock end dress of anti-siphon valve (3)
There is the self-locking nut (4) that the mode of being connected through a screw thread is secured to, self-locking nut (4) is positioned at gland (2) not in contact with spring (5)
One end and opposite with its tight.
4. anti-siphon valve arrangement according to claim 1, it is characterised in that gland (2) is in contact with spring (5)
Annular groove is simultaneously provided with, spring (5) is fallen into the annular groove.
5. anti-siphon valve arrangement according to claim 1, it is characterised in that the quantity of through hole (9) is six and circumferential
It is distributed on pipeline boss (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720122992.4U CN206513890U (en) | 2017-02-10 | 2017-02-10 | A kind of anti-siphon valve arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720122992.4U CN206513890U (en) | 2017-02-10 | 2017-02-10 | A kind of anti-siphon valve arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206513890U true CN206513890U (en) | 2017-09-22 |
Family
ID=59866214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720122992.4U Active CN206513890U (en) | 2017-02-10 | 2017-02-10 | A kind of anti-siphon valve arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206513890U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019280A (en) * | 2017-11-15 | 2018-05-11 | 中国航发沈阳发动机研究所 | Engine lubrication system with anti-siphon means |
-
2017
- 2017-02-10 CN CN201720122992.4U patent/CN206513890U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019280A (en) * | 2017-11-15 | 2018-05-11 | 中国航发沈阳发动机研究所 | Engine lubrication system with anti-siphon means |
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