CN215198711U - Automatic fuel pipeline air blowing valve - Google Patents
Automatic fuel pipeline air blowing valve Download PDFInfo
- Publication number
- CN215198711U CN215198711U CN202120276877.9U CN202120276877U CN215198711U CN 215198711 U CN215198711 U CN 215198711U CN 202120276877 U CN202120276877 U CN 202120276877U CN 215198711 U CN215198711 U CN 215198711U
- Authority
- CN
- China
- Prior art keywords
- nozzle
- fuel
- gas
- air
- shaped part
- 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.)
- Active
Links
Images
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model is suitable for an engine fuel nozzle technical field specifically is an automatic fuel pipeline valve of blowing, include: the T-shaped part is provided with a fuel inlet, and the other side, far away from the fuel inlet, of the T-shaped part is provided with a fuel outlet; a nozzle connected to the tee; the nozzle is provided with a gas guide structure capable of guiding high-pressure gas, the gas guide structure is communicated with the gas compressor, and a gas circuit is arranged in the T-shaped part in a matching manner; high-pressure gas led out from the gas compressor reaches the combustion chamber through the nozzle, and residual fuel oil in the nozzle is blown off; the high-pressure gas led from the back of the compressor is used for blowing the nozzle, so that the nozzle does not collect oil, and the function of preventing carbon deposition is achieved; the nozzle can effectively prevent carbon deposition on the aspect of engine combustion chamber components, thereby not only preventing the ablation condition caused by the carbon deposition of the nozzle, but also avoiding the conditions of fuel flow reduction, uneven temperature field, engine power reduction and the like caused by the blockage of the nozzle.
Description
Technical Field
The utility model relates to an engine fuel nozzle technical field specifically is an automatic fuel pipeline valve of blowing.
Background
Two ways of understanding carbon deposition: 1. one is carbon deposition of the engine: during the working process of the engine, unsaturated olefin and colloid in the fuel oil generate a coke-like substance in a high-temperature state; 2. the second is carbon deposition in the electric discharge machining, which is a problem that should be avoided as much as possible, and particularly, the carbon deposition can be a fatal influence in the precision die machining.
Carbon deposition is one of the manifestations of spark machine discharge machining abnormalities. As can be clearly seen in the diagram of a generic engine: the source of power to mixed gas must enter a combustion chamber through an inlet valve; a small amount of gasoline is attached to the intake valve, hydrocarbon, paraffin and colloid which cannot be completely combusted in the gasoline can be burnt into colloidal carbon substances when meeting the high temperature of an engine, and if the oil nozzle is polluted, the sprayed gasoline is not good in atomization state, the gasoline and air are not uniformly mixed, and the amount of the gasoline condensed on the intake valve can be increased.
At present, when an aircraft engine is started, fuel oil is sprayed out through a starting nozzle, a small amount of fuel oil is attached to the inside of the nozzle, and as the sprayed fuel oil is burnt near the nozzle and the radiation temperature is high, hydrocarbons, colloid and other burnt colloidal carbon substances which cannot be completely burnt in the attached fuel are adhered to the inside of the nozzle.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an automatic fuel pipeline valve of blowing to solve the problem that proposes among the above-mentioned background art. In order to achieve the above object, the utility model provides a following technical scheme:
an automatic fuel line blow-off valve comprising:
the T-shaped part is provided with a fuel inlet, and the other side, far away from the fuel inlet, of the T-shaped part is provided with a fuel outlet;
a nozzle connected to the tee;
and the nozzle is provided with a gas guide structure capable of guiding high-pressure gas, the gas guide structure is communicated with the compressor, a gas circuit is arranged in the T-shaped part in a matched mode, and the gas circuit and the gas guide structure are used for guiding the high-pressure gas to blow off residual fuel oil in the nozzle and the T-shaped part.
When the pressure of the fuel oil is higher than the rear air pressure of the air compressor, the air path is closed, the fuel oil is supplied to the starting nozzle from the oil path, when the pressure of the fuel oil is lower than the rear air pressure of the air compressor, the oil path is closed, the high-pressure gas led out from the air compressor reaches the combustion chamber through the nozzle, and the residual fuel oil in the nozzle is blown off; the high-pressure gas led from the back of the compressor is used for blowing the nozzle, so that the nozzle does not collect oil, and the function of preventing carbon deposition is achieved; the nozzle carbon deposition prevention device can effectively play a role in preventing carbon deposition on the aspect of engine combustion chamber components, obviously weakens the carbon deposition condition of the nozzle compared with the prior art, prevents the ablation condition caused by the carbon deposition of the nozzle, and simultaneously avoids the conditions of fuel flow reduction, uneven temperature field, engine power reduction and the like caused by the blockage of the nozzle.
The utility model discloses in the automatic fuel pipeline valve of blowing: the air guide structure is an air inlet which is communicated with the air compressor, and high-pressure air is introduced by the air compressor to flow through the air inlet and enter the nozzle. The high-pressure gas led from the back of the compressor is used for blowing the nozzle, so that the nozzle does not collect oil, and the function of preventing carbon deposition is achieved.
The utility model discloses in the automatic fuel pipeline valve of blowing: a hexagonal nut is additionally arranged on the nozzle, and the hexagonal nut is sleeved on the nozzle.
Further scheme: the hexagonal nut is sleeved on the sealing ring for sealing.
The utility model discloses in the automatic fuel pipeline valve of blowing: the T-shaped piece is internally provided with a piston.
The utility model discloses in the automatic fuel pipeline valve of blowing: the nozzle and the T-shaped piece are detachably connected.
Further scheme: the nozzle is detachably connected with the T-shaped piece through a nut, and a sealing structure is additionally arranged at the connection position of the nozzle and the T-shaped piece.
Preferably: the sealing structure is a sealing seat.
Compared with the prior art, the utility model discloses automatic fuel pipeline valve of blowing, include: the T-shaped part is provided with a fuel inlet, and the other side, far away from the fuel inlet, of the T-shaped part is provided with a fuel outlet; a nozzle connected to the tee; the nozzle is provided with a gas guide structure capable of guiding high-pressure gas, the gas guide structure is communicated with the compressor, a gas circuit is arranged in the T-shaped part in a matched mode, and the gas circuit and the gas guide structure are used for guiding the high-pressure gas to blow off residual fuel oil in the nozzle and the T-shaped part; when the pressure of the fuel oil is higher than the rear air pressure of the air compressor, the air path is closed, the fuel oil is supplied to the starting nozzle from the oil path, when the pressure of the fuel oil is lower than the rear air pressure of the air compressor, the oil path is closed, the high-pressure gas led out from the air compressor reaches the combustion chamber through the nozzle, and the residual fuel oil in the nozzle is blown off; the high-pressure gas led from the back of the compressor is used for blowing the nozzle, so that the nozzle does not collect oil, and the function of preventing carbon deposition is achieved; the nozzle carbon deposition prevention device can effectively play a role in preventing carbon deposition on the aspect of engine combustion chamber components, obviously weakens the carbon deposition condition of the nozzle compared with the prior art, prevents the ablation condition caused by the carbon deposition of the nozzle, and simultaneously avoids the conditions of fuel flow reduction, uneven temperature field, engine power reduction and the like caused by the blockage of the nozzle.
The problem of carbon deposition of the nozzle is solved from the source, the problem that carbon deposition of the nozzle cannot be attached to the head of the nozzle is solved, namely, the existing domestic engine has no air purging channel, and carbon deposition conditions of different degrees basically exist.
Drawings
Fig. 1 is a schematic diagram of a transverse section structure of the automatic fuel pipeline air blowing valve of the present invention.
In the figure: 1-a nut; 2-a T-shaped part; 3-a piston; 4-sealing seat; 5-a hexagonal nut; 6-sealing ring; 7-a nozzle; 8-an air inlet; 9-fuel inlet; 10-fuel outlet.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the following embodiments. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the embodiment of the utility model provides an in, as shown in fig. 1, an automatic fuel pipeline valve of blowing, include: the T-shaped part 2 is provided with a fuel inlet 9, and the other side, far away from the fuel inlet 9, of the T-shaped part 2 is provided with a fuel outlet 10; a nozzle 7, said nozzle 7 being connected to the tee 2; and the nozzle 7 is provided with a gas guide structure capable of guiding high-pressure gas, the gas guide structure is communicated with the compressor, a gas path is arranged in the T-shaped part 2 in a matching manner, and the high-pressure gas is guided by the gas path and the gas guide structure to blow off residual fuel oil in the nozzle 7 and the T-shaped part 2.
In the embodiment of the utility model, when the fuel pressure is larger than the air pressure behind the compressor, the gas circuit is closed, the fuel is supplied to the starting nozzle 7 from the oil circuit, when the fuel pressure is smaller than the air pressure behind the compressor, the oil circuit is closed, the high-pressure gas led out from the compressor reaches the combustion chamber through the nozzle 7, and the residual fuel in the nozzle 7 is blown off; the nozzle 7 is purged by high-pressure gas led from the rear of the compressor, so that the nozzle 7 does not collect oil, and the function of preventing carbon deposition is achieved; the nozzle 7 can effectively prevent carbon deposition in the aspect of engine combustion chamber components, and the carbon deposition condition of the nozzle 7 is obviously weakened compared with the prior art, so that the ablation condition caused by the carbon deposition of the nozzle 7 is prevented, and the conditions of fuel flow reduction, uneven temperature field, engine power reduction and the like caused by the blockage of the nozzle 7 are avoided.
In the embodiment of the present invention, as shown in fig. 1, the air guide structure is an air inlet 8, the air inlet 8 is communicated with the compressor, and the high-pressure air introduced by the compressor flows through the air inlet 8 and enters the nozzle 7. The high-pressure gas led from the back of the compressor is used for purging the nozzle 7, so that the nozzle 7 does not collect oil, and the function of preventing carbon deposition is achieved.
Aiming at the situation, the air compressor for providing high-pressure air can be replaced by a high-pressure air pump or other equipment capable of providing high-pressure air, but the condition that the introduced high-pressure air can blow the nozzle 7 to prevent the nozzle 7 from collecting oil can be met, so that the carbon deposition is prevented, the optimized air inlet 8 is communicated with the air compressor, and the high-pressure air is introduced by the air compressor to flow through the air inlet 8 and enter the nozzle 7.
In the embodiment of the present invention, as shown in fig. 1, the hexagonal nut 5 is installed on the nozzle 7, and the hexagonal nut 5 is installed on the nozzle 7. The hexagonal nut 5 is sleeved on the sealing ring 6 for sealing.
The hexagonal nut 5 can also be replaced by a quadrangular nut, a pentagonal nut and a heptagonal nut, and the specific type is not limited.
The utility model discloses in the automatic fuel pipeline valve of blowing: the tee 2 has a piston 3 mounted therein. The nozzle 7 and the T-shaped part 2 are detachably connected. The nozzle 7 is detachably connected with the T-shaped part 2 through a nut, and a sealing structure is additionally arranged at the connection position of the nozzle 7 and the T-shaped part 2. The sealing structure is a sealing seat 4.
The utility model discloses automatic fuel pipeline valve of blowing, include: the T-shaped part 2 is provided with a fuel inlet 9, and the other side, far away from the fuel inlet 9, of the T-shaped part 2 is provided with a fuel outlet 10; a nozzle 7, said nozzle 7 being connected to the tee 2; the nozzle 7 is provided with a gas guide structure capable of guiding high-pressure gas, the gas guide structure is communicated with the compressor, a gas path is arranged in the T-shaped part 2 in a matching manner, and the gas path and the gas guide structure are used for guiding the high-pressure gas to blow off residual fuel oil in the nozzle 7 and the T-shaped part 2; when the pressure of the fuel oil is higher than the rear air pressure of the air compressor, the air path is closed, the fuel oil is supplied to the starting nozzle 7 from the oil path, when the pressure of the fuel oil is lower than the rear air pressure of the air compressor, the oil path is closed, the high-pressure gas led out from the air compressor reaches a combustion chamber through the nozzle 7, and the residual fuel oil in the nozzle 7 is blown off; the nozzle 7 is purged by high-pressure gas led from the rear of the compressor, so that the nozzle 7 does not collect oil, and the function of preventing carbon deposition is achieved; the nozzle 7 can effectively prevent carbon deposition in the aspect of engine combustion chamber components, and the carbon deposition condition of the nozzle 7 is obviously weakened compared with the prior art, so that the ablation condition caused by the carbon deposition of the nozzle 7 is prevented, and the conditions of fuel flow reduction, uneven temperature field, engine power reduction and the like caused by the blockage of the nozzle 7 are avoided.
The problem of carbon deposition of the nozzle is solved from the source, the problem that carbon deposition of the nozzle cannot be attached to the head of the nozzle is solved, namely, the existing domestic engine has no air purging channel, and carbon deposition conditions of different degrees basically exist.
In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art.
Claims (8)
1. An automatic fuel pipeline air blowing valve is characterized in that,
the method comprises the following steps:
the T-shaped part is provided with a fuel inlet, and the other side, far away from the fuel inlet, of the T-shaped part is provided with a fuel outlet;
a nozzle connected to the tee;
and the nozzle is provided with a gas guide structure capable of guiding high-pressure gas, the gas guide structure is communicated with the compressor, a gas circuit is arranged in the T-shaped part in a matched mode, and the gas circuit and the gas guide structure are used for guiding the high-pressure gas to blow off residual fuel oil in the nozzle and the T-shaped part.
2. An automatic fuel oil pipeline air blowing valve as claimed in claim 1, wherein the air guide structure is an air inlet, the air inlet is communicated with a compressor, and high-pressure air is introduced by the compressor to flow through the air inlet and enter the nozzle.
3. An automatic fuel oil pipeline air blowing valve as claimed in claim 1, wherein a hexagonal nut is additionally arranged on the nozzle, and the hexagonal nut is sleeved on the nozzle.
4. An automatic fuel pipeline air blowing valve as claimed in claim 3, wherein the hexagonal nut seals by sleeving on a sealing ring.
5. An automatic fuel line purging valve as claimed in claim 1, wherein a piston is mounted inside the tee.
6. An automatic fuel pipeline air-blowing valve as claimed in any one of claims 1 to 5, wherein said nozzle and said T-piece are detachably connected.
7. An automatic fuel pipeline air-blowing valve as claimed in claim 6, wherein the nozzle and the T-shaped piece are detachably connected through a nut, and a sealing structure is additionally arranged at the connection part of the nozzle and the T-shaped piece.
8. An automatic fuel pipeline air-blowing valve as recited in claim 7, wherein said sealing structure is a sealing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120276877.9U CN215198711U (en) | 2021-01-29 | 2021-01-29 | Automatic fuel pipeline air blowing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120276877.9U CN215198711U (en) | 2021-01-29 | 2021-01-29 | Automatic fuel pipeline air blowing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215198711U true CN215198711U (en) | 2021-12-17 |
Family
ID=79439188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120276877.9U Active CN215198711U (en) | 2021-01-29 | 2021-01-29 | Automatic fuel pipeline air blowing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215198711U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112775118A (en) * | 2021-01-29 | 2021-05-11 | 安徽应流航空科技有限公司 | Automatic fuel pipeline air blowing valve |
-
2021
- 2021-01-29 CN CN202120276877.9U patent/CN215198711U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112775118A (en) * | 2021-01-29 | 2021-05-11 | 安徽应流航空科技有限公司 | Automatic fuel pipeline air blowing valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1489269B1 (en) | Methods and apparatus for injecting cleaning fluids into combustors | |
| US7874310B1 (en) | Water cooled liquid fuel valve | |
| CN102777232B (en) | For the Blowby flow control system of turbosupercharged engine | |
| JP4868988B2 (en) | Gas turbine engine fuel nozzle and gas turbine engine assembly | |
| US7669420B2 (en) | Fuel injector having an annular prefilmer | |
| US8584467B2 (en) | Method of controlling a combustor for a gas turbine | |
| US8800895B2 (en) | Piloted variable area fuel injector | |
| US8555648B2 (en) | Fuel injector nozzle | |
| CN215198711U (en) | Automatic fuel pipeline air blowing valve | |
| US8375713B2 (en) | EGR cooler cleaning system and method | |
| CN105047961A (en) | Device for removing residual hydrogen in fuel cell,fuel cell system and vehicle | |
| EP2461011B1 (en) | Mixing pipe for recirculated exhaust gas and air | |
| CN103052789B (en) | Explosive motor, combustion charge form system and method | |
| CN102434252A (en) | Exhaust aftertreatment system, and engine service package having fuel filtering mechanism | |
| CN104956047A (en) | Gas turbine offline compressor wash with buffer air from combustor | |
| CN112775118A (en) | Automatic fuel pipeline air blowing valve | |
| US8468834B2 (en) | Fuel injector nozzle | |
| US10208648B1 (en) | Engine oil cooler backflush valve assembly | |
| CN101336336A (en) | Nozzle assembly | |
| RU2732253C1 (en) | Combustion chamber burner device cleaning method and installation for its application | |
| CN203532052U (en) | Exhausting fence automatic-cleaning system for explosion-proof vehicle driven by diesel engine | |
| CN103277221B (en) | Ordinary diesel fuel gasification and combustion warmer installed on special vehicles | |
| CN107559118B (en) | Fuel injector mounting seat of vehicle | |
| CN208870664U (en) | Seal valve stem protecting jacket structure | |
| CN206306834U (en) | A kind of automobile hydraulic fluid port check valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |