CN2421524Y - Carburetor for jet engine - Google Patents
Carburetor for jet engine Download PDFInfo
- Publication number
- CN2421524Y CN2421524Y CN00208314.0U CN00208314U CN2421524Y CN 2421524 Y CN2421524 Y CN 2421524Y CN 00208314 U CN00208314 U CN 00208314U CN 2421524 Y CN2421524 Y CN 2421524Y
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- CN
- China
- Prior art keywords
- tunnel
- jet engine
- jet
- hole
- carburetor
- 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
Links
- 238000003860 storage Methods 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000000446 fuel Substances 0.000 abstract description 30
- 239000003595 mist Substances 0.000 abstract description 6
- 239000012141 concentrate Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 20
- 239000003921 oil Substances 0.000 description 7
- 239000000295 fuel oil Substances 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 239000002828 fuel tank Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005507 spraying Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000009333 weeding Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Nozzles (AREA)
Abstract
本实用新型公开了一种喷气式发动机化油器,主要特点是在化油器壳体里设置隧道,进油孔与隧道相联通;在隧道上设置导向孔,导向孔与进油孔同心,阀针穿过导向孔,并以导向孔为导向经过隧道插入进油孔形成均匀的间隙,燃油通过间隙形成薄而均匀的油膜;喷气孔喷出起动压缩气体,在隧道约束下,以初速度集中准确地把燃油膜破碎成极细的雾点,从隧道里喷出,雾点集中,方向性强,明显改善了喷气式发动机的起动性能。
The utility model discloses a jet engine carburetor, which is mainly characterized in that a tunnel is arranged in the carburetor casing, and an oil inlet hole communicates with the tunnel; a guide hole is arranged on the tunnel, and the guide hole is concentric with the oil inlet hole. The valve needle passes through the guide hole, and is guided by the guide hole and inserted into the oil inlet hole through the tunnel to form a uniform gap. The fuel passes through the gap to form a thin and uniform oil film; Concentrate and accurately break the fuel film into very fine mist points, which are sprayed out from the tunnel. The fog points are concentrated and have strong directionality, which obviously improves the starting performance of the jet engine.
Description
The utility model relates to a kind of jet engine, specifically belongs to a kind of jet engine carburetor.
At present, known jet-propelled fog machine and jet-propelled cooking boiling vessel adopt jet engine as power set and heater respectively.The jet engine carburetor of prior art is made of inlet valve, needle valve throttle and starting fumarole etc., during starting fuel-oil atmozation exist that cloud point is thick, cloud point scattering and the inadequate shortcoming that atomizes, cause the jet engine starting difficulty, have a strong impact on applying of jet engine.Therefore, the carburetor that people need still that a kind of carburetion is good, spray direction is accurate, cloud point is concentrated improves the starting performance of jet engine.
The purpose of this utility model provides a kind of jet engine carburetor, and it not only wants carburetion good, and wants spray direction standard, cloud point to concentrate, and can significantly improve the starting performance of jet engine.
The purpose of this utility model is achieved in that
The utility model comprises carbureter body, needle, valve seat, fuel feed hole, fumarole, specifically is the tunnel is set in carbureter body, and fuel feed hole and tunnel link; Pilot hole is set on the tunnel, and pilot hole is concentric with fuel feed hole, and needle passes pilot hole, and is guiding process of passing through tunnel insertion fuel feed hole with the pilot hole; Inlet end is provided with fumarole in the tunnel, and fumarole links with manual gas storage pump.When jet engine was shut down, needle was descending, and fuel feed hole is closed by fuel feeding.When jet engine was started, needle was up to the position of setting, formed uniform gap between needle and the fuel feed hole, and fuel oil forms by this uniform gap and approaches and uniform oil film, and is up in the tunnel along needle; The starting of fumarole ejection at the same time Compressed Gas, concentrate with initial velocity under the constraint in tunnel act on the needle exactly, on the oil-feed aperture and on the tunnel inwall, fuel film is broken into superfine mist of oil, in the tunnel, gushes out, for the jet engine starting.
Advantage of the present utility model is:
1, approach and fuel film interface increase uniformly, surface tension reduces, and is easy to be started Compressed Gas and is broken into superfine mist of oil; Under the constraint in tunnel, the abundant atomized fuel of starting compressed gas physical efficiency; Under the guiding of starting Compressed Gas and tunnel inwall, the fuel spray point of injection is concentrated, and high directivity has obviously improved the starting performance of jet engine.
2, simple and reliable for structure, eliminated error that carbureter body, needle, valve seat form in multi-step process to needle and fuel feed hole by the influence of touching precision.
The drawing explanation:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a jet engine fundamental diagram of the present utility model;
Fig. 3 is that the utility model is applied to jet-propelled hand-held high temperature jet plane front view;
Fig. 4 is jet-propelled hand-held high temperature jet plane right view;
Fig. 5 is jet-propelled hand-held high temperature jet plane left view;
Fig. 6 is the jet engine circuit diagram.
Below in conjunction with drawings and Examples the utility model is further specified.
With reference to Fig. 1, shown in Figure 2, carburetor (1) comprises carbureter body (2), needle (4), valve seat (6), fuel feed hole (5), fumarole (8), inlet valve (16) and negative pressure gas production hole (15) etc.Specifically be in carbureter body (2) lining tunnel (3) to be set, fuel feed hole (5) links with tunnel (3); Pilot hole (7) is set on tunnel (3), and pilot hole (7) is concentric with fuel feed hole (5), and needle (4) passes pilot hole (7), and serves as that guiding process of passing through tunnel (3) inserts fuel feed hole (5) with pilot hole (7).Add cumulative errors in the operation in order to eliminate carbureter body (2), needle (4), valve seat (6) in multiple tracks, tunnel (3) join together with carbureter body (2) with valve seat (6) and connect.The oil-out of fuel feed hole (5) is taper, and needle (4) becomes the conical surface to contact with fuel feed hole (5); Owing to do the gap between needle (4) and the pilot hole (7) very for a short time, needle (4) can be a guiding with the hole wall of pilot hole (7) just, opens or close fuel feed hole (5).When jet engine was shut down, the descending fuel feed hole (5) of closing of needle (4) was by fuel feeding.In jet engine when starting,, needle (4) is up to the position of setting, forms uniform gap between needle (4) and the fuel feed hole (5), and fuel oil forms thin and uniform oil film by this uniform gap, along needle (4) up in the tunnel (3) lining.The interface of fuel film increases, and surface tension reduces, and very helps starting the broken and atomizing of Compressed Gas to fuel oil.Manually gas storage pump (11) lining is provided with elasticity air storage bag (34), and elasticity air storage bag (34) increases and increases volume and pressure with aeration quantity, for fumarole (8) atomized fuel provides sufficient starting Compressed Gas.Fumarole (8) is arranged on the right side of tunnel (3) lining needle (4), and the position is in the inlet end of tunnel (3), rather than the outlet side; Fumarole (8) links by pipeline and manual gas storage pump (11); The jet direction of fumarole (8) is towards the electrode of spark plug (21), and the aperture of its aperture and fuel feed hole (5) is complementary, and coupling is selected in oil, gas ratio.The direction in tunnel (3) is towards jet engine combustion chamber (22).Like this, the starting Compressed Gas sprays from fumarole (8), just can be under the constraint of tunnel (3), with initial velocity concentrate act on accurately that needle-valve (4) is gone up, the mouth of fuel feed hole (5) is gone up and the inwall of tunnel (3) on, the fuel film fragmentation that constantly forms is atomized into superfine mist of oil, (3) lining sprays from the tunnel, the mist of oil of ejection is height atomizing shape, and cloud point is concentrated, and directionality is extremely strong, is easy to be lighted starting by electric spark.Make tunnel (3) owing to adopt the book wall technique, it is very little that inlet valve (16) enters the gas-flow resistance of carbureter body (2) and lining, tunnel (3), therefore do not influence normal air feed and carburetion function after jet engine is started, solved the difficult problem of jet engine starting difficulty preferably.
With reference to shown in Figure 2, jet engine is made up of carburetion system, return-air cooled combustion system and spraying system etc.Jet engine adopts the normal pressure starting method, it is each prestart, open air valve (9) and get rid of the overbottom pressure of fuel tank (13) lining, close upper air valve (9) again after making fuel tank (13) and atmospheric pressure being identical, manual gas storage pump (11) is pumped enough air in, needle (4) is reached predeterminated position, press electric stacked switch (10), manually the starting Compressed Gas one tunnel of gas storage pump (11) lining enters fuel tank (13) through check valve (12) and forms pressure, and fuel oil is sent to fuel feed hole (5) through check valve (17); Fumarole (8) is delivered on another road.The circulation of air that jet engine starting back fuel oil is then sucked in by inlet valve (16) is crossed tunnel (3) and is proceeded atomizing; The air pressure of fuel tank (13) lining is taked the gas of carbureter body (2) lining to supply with through check valve (14) by negative pressure gas production hole (15), make jet engine be able to normal work done.The combustion gas that jet engine combustion chamber (22) burning produces is in jet engine is pulled out tracheae (19), bend pipe (18) inflow sleeve pipe (20), pull out tracheae (19) and jet engine combustion chamber (22) outer surface absorption heat by jet engine earlier, after playing the effect of cooling jet engine combustion chamber (22), enter jet pipe (23) again and negative pressure shower nozzle (24) is realized the jet operation of high temperature.
With reference to Fig. 3, Fig. 4, shown in Figure 5, jet-propelled hand-held high temperature jet plane is one of application examples of the present utility model.The overall structure of jet-propelled hand-held high temperature jet plane is made of supporting wall plate (25), and the right side is provided with fuel tank (13), manually gas storage pump (11), pipeline (28), battery close (29), idea igniter (27), electric wire (26), carburetor parts such as (1).Operating personnel inject fixed band (31) with the right hand, catch handle (32); Inflate for manual gas storage pump (11) with left hand, open and close air valve (9) is opened needle (4), presses electric stacked switch (10), just can start jet engine smoothly.The left side of supporting wall plate (25) is provided with jet engine combustion chamber (22), jet engine and pulls out tracheae (19), sleeve pipe (20), bearing support (30), anti-scald net parts such as (33), sleeve pipe (20) and connect jet pipe (23) and negative pressure shower nozzle (24), negative pressure shower nozzle (24) be provided with interface can with bear medicine-chest and link.This function spraying, aerosol spraying mist, spray steam or high temperature gas flow are used for agricultural, forestry plant protection dispenser and roadside, field physics weeding sterilization, use very light.
With reference to shown in Figure 6, the electric routing battery of jet engine closes (29), electric stacked switch (10), ignition (27) and spark plug compositions such as (21).During the jet engine starting, as long as press electric stacked switch (10), electric current enters ignition (27) by battery, produces high-voltage pulse current, for spark plug (21) igniting, unclamps electric stacked switch (10) igniting and promptly stops.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00208314.0U CN2421524Y (en) | 2000-04-12 | 2000-04-12 | Carburetor for jet engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00208314.0U CN2421524Y (en) | 2000-04-12 | 2000-04-12 | Carburetor for jet engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2421524Y true CN2421524Y (en) | 2001-02-28 |
Family
ID=33575724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00208314.0U Expired - Fee Related CN2421524Y (en) | 2000-04-12 | 2000-04-12 | Carburetor for jet engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2421524Y (en) |
-
2000
- 2000-04-12 CN CN00208314.0U patent/CN2421524Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |