CN205876545U - Accelerating device of aviation piston engine vaporizer - Google Patents
Accelerating device of aviation piston engine vaporizer Download PDFInfo
- Publication number
- CN205876545U CN205876545U CN201620648950.XU CN201620648950U CN205876545U CN 205876545 U CN205876545 U CN 205876545U CN 201620648950 U CN201620648950 U CN 201620648950U CN 205876545 U CN205876545 U CN 205876545U
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- CN
- China
- Prior art keywords
- carburator
- diaphragm
- piston engine
- oilhole
- aviation piston
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- 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.)
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Abstract
The utility model provides an accelerating device of aviation piston engine vaporizer, it includes a shell of establishing ties with the vaporizer, be the intake duct in the shell, the shell is provided with first oilhole, interconnect's pump cover sets gradually on the axis direction of first oilhole, a spring, the diaphragm, the ejection structure comprises an ejecting needle, thimble guide and valve seat, valve seat and first oilhole intercommunication, the thimble guide is provided with the radial oilhole and the annular oil duct of mutual intercommunication, annular oil duct fires oil spraying pipe and intake duct intercommunication through one, space between diaphragm and the thimble guide is through an air pressure sensing pipe and intake duct intercommunication, the space intercommunication between a balanced air flue and diaphragm and the pump cover is passed through in space between diaphragm and the thimble guide. The utility model provides an accelerating device of aviation piston engine vaporizer, accessible experience into airway pressure's change, the automatic fuel delivery that supplyes to guarantee extra complementary supply fuel when slow -speed of revolution state sharply gos to the takeoff condition to.
Description
Technical field
This utility model relates to aero engine technology field, particularly to adding of a kind of aviation piston engine carburator
Speed variator.
Background technology
The fuel system of aviation piston engine uses the mode of carburator fuel feeding the most in a large number at present, and the effect of carburator is
Carry out the gasoline entering electromotor being atomized and uniformly mixing with the air entering electromotor, and according to electromotor work shape
The change of state, it is provided that the air mixture of optimal air-fuel ratio, thus ensure dynamic property and the economy of electromotor.
Density due to air is less than the density of gasoline, when quickly strengthening carburetor throttle aperture (refueling rapidly),
The change of air mass flow is more than the change of gasoline flow, and at this moment the air-fuel ratio of gaseous mixture will increase, and makes mixture strength decline,
Cause gaseous mixture in engine combustion indoor can not normal combustion, thus form the phenomenon of electromotor job insecurity, therefore vapour
Change device to need to be designed with to add speed system, additionally provide some gasoline when electromotor accelerates more.
Utility model content
The technical problems to be solved in the utility model is to provide the accelerator of a kind of aviation piston engine carburator, with
Noted earlier problem is reduced or avoided.
For solving above-mentioned technical problem, the utility model proposes a kind of aviation piston engine carburator adds quick-mounting
Putting, it is connected on the carburator of aviation piston engine, and described carburator sidewall is provided with the first oil duct, it include one with
The shell of described carburator series connection, the interior air intake duct being the air flue with described carburator and connecting of described shell, described shell is arranged
Having the first oilhole being connected with described first oil duct, described shell is disposed with phase on the axis direction of described first oilhole
Pump cover, spring, diaphragm, thimble, thimble guide and the valve base connected, described valve base connects with described first oilhole,
Described thimble guide is provided with the radial direction oil hole and ring shaped oil passage being interconnected, described ring shaped oil passage by fuel oil jet pipe with
Described air intake duct connects, and the space between described diaphragm and described thimble guide is by an air pressure induction tube and described air intake duct
Connection, the space between described diaphragm and described thimble guide is by between an air pressure balance duct and described diaphragm and described pump cover
Space connection.
Preferably, described first oilhole is provided with a first fuel oil flow nipple.
Preferably, a second fuel oil flow nipple it is provided with between described fuel oil jet pipe and described ring shaped oil passage.
Preferably, described air pressure balance duct is provided with an air throttle mouth.
Preferably, described air pressure induction tube opening in described air intake duct is arranged on the most described carburator side.
The accelerator of a kind of aviation piston engine carburator provided by the utility model, can be by experiencing air intake duct
The change of pressure, is automatically replenished fuel delivery, thus is guaranteed in can additionally supplementing when low speed state drastically forwards takeoff condition to
Supply fuel oil.
Accompanying drawing explanation
The following drawings is only intended to, in schematically illustrating this utility model and explaining, not limit model of the present utility model
Enclose.Wherein,
Fig. 1 be a kind of aviation piston engine carburator according to a specific embodiment of the present utility model add quick-mounting
The structural representation put；
Fig. 2 is enlarged diagram at the A of Fig. 1.
Detailed description of the invention
In order to technical characteristic of the present utility model, purpose and effect are more clearly understood from, now comparison accompanying drawing explanation
Detailed description of the invention of the present utility model.Wherein, identical parts use identical label.
Fig. 1 be a kind of aviation piston engine carburator according to a specific embodiment of the present utility model add quick-mounting
The structural representation put；Fig. 2 is enlarged diagram at the A of Fig. 1.Seeing shown in Fig. 1-2, this utility model provides a kind of aviation
The accelerator of piston engine carburator, it is connected on the carburator 1 of aviation piston engine, described carburator 1 sidewall
Being provided with the first oil duct 11, it includes a shell 2 connected with described carburator 1, in described shell 2 is and described carburator
The air intake duct of the air flue connection of 1, described shell 2 is provided with the first oilhole 21 being connected with described first oil duct 11, described shell 2
The axis direction of described first oilhole 21 is disposed with interconnective pump cover 3, spring 4, diaphragm 5, thimble 6, thimble
Guide 7 and valve base 8, described valve base 8 connects with described first oilhole 21, and described thimble guide 7 is provided with and is interconnected
Radial direction oil hole 71 and ring shaped oil passage 72, described ring shaped oil passage 72 is connected with described air intake duct by a fuel oil jet pipe 22, institute
The space stated between diaphragm 5 with described thimble guide 7 is connected with described air intake duct by an air pressure induction tube 23, described diaphragm
Space between 5 and described thimble guide 7 is by the space between an air pressure balance duct 24 and described diaphragm 5 and described pump cover 3
Connection.
The operation principle of the accelerator of a kind of aviation piston engine carburator provided by the utility model is, when sending out
During motivation slow train, the air throttle 12 of carburator 1 is closed, and produces negative pressure above described air throttle 12, namely described
Can produce negative pressure in air intake duct, negative pressure passes to the sky between described diaphragm 5 and described thimble guide 7 by air pressure induction tube 23
Between, and pass to the space between described diaphragm 5 and described pump cover 3, the most described spring 4 place by described air pressure balance duct 24
Cavity so that the air pressure balance at described diaphragm 5 two ends, the most described spring 4 promotes described diaphragm 5 to drive described thimble
6 endoporus blocking described valve base 8, have cut off gasoline by flowing to the path of described fuel oil jet pipe 22, have not the most fired
Oil sprays in described air intake duct.
When drastically opening described air throttle 12, that is to say that when refueling rapidly, the pressure above described air throttle 12 is (the most just
It is the pressure in described air intake duct) can be increased dramatically, the pressure of increase passes to described diaphragm 5 with described by air pressure induction tube 23
Space (that is to say below described diaphragm 5) between thimble guide 7, causes described diaphragm 5 two ends to produce pressure reduction, at the work of pressure reduction
Overcome described spring 4 pressure to be bent upwards deformation with lower described diaphragm 5, drive described thimble 6 up, leave described valve base 8
Endoporus, at this moment gasoline sequentially passes through described first oil duct 11, described first oilhole 21, described valve base 8, described radial direction oil hole
71, described ring shaped oil passage 72 and described fuel oil jet pipe 22 spray in described air intake duct, add the slow-speed of revolution and drastically forward to take off
Fuel delivery during state.Along with air passes to the space between described diaphragm 5 and described pump cover 3 by described air pressure balance duct 24,
The cavity at the most described spring 4 place, so that the air pressure balance at described diaphragm 5 two ends, the most described spring 4 promotes institute
Stating diaphragm 5 drives described thimble 6 to block the endoporus of described valve base 8, has cut off gasoline by flowing to described fuel oil jet pipe 22
Path, thus fuel cut-off, this ensures that there and only just provide the fuel oil supplemented when electromotor accelerates.
In order to preferably control fuel flow, in described first oilhole 21, a first fuel oil flow nipple can be set further
211, a second fuel oil flow nipple 221 can also be set between described fuel oil jet pipe 22 and described ring shaped oil passage 72 further.
In order to avoid the air pressure balance time at described diaphragm 5 two ends is too short, can arrange further in described air pressure balance duct 24
One air throttle mouth 241.
The described air pressure induction tube 23 opening in described air intake duct may be provided at the most described carburator 1 side, so,
When avoiding to open described air throttle 12, air-flow is directly blown into described air pressure induction tube 23, ensures described air pressure induction tube 23
The air pressure transmitted is exactly the average pressure in described air intake duct.
The accelerator of a kind of aviation piston engine carburator provided by the utility model, can be by experiencing air intake duct
The change of pressure, is automatically replenished fuel delivery, thus is guaranteed in can additionally supplementing when low speed state drastically forwards takeoff condition to
Supply fuel oil.
Although it will be appreciated by those skilled in the art that this utility model is to be described according to the mode of multiple embodiments
, but the most each embodiment only comprises an independent technical scheme.In description, so narration is only used to clear
For the sake of, description should be understood by those skilled in the art as an entirety, and by skill involved in each embodiment
Art scheme is regarded as and can be understood protection domain of the present utility model in the way of being mutually combined into different embodiment.
The foregoing is only the schematic detailed description of the invention of this utility model, be not limited to model of the present utility model
Enclose.Any those skilled in the art, the equivalent variations made on the premise of without departing from design of the present utility model and principle,
Amendment and combination, all should belong to the scope of this utility model protection.
Claims (5)
1. an accelerator for aviation piston engine carburator, it is connected on the carburator of aviation piston engine, institute
Stating carburator sidewall and be provided with the first oil duct, it includes a shell connected with described carburator, in described shell for institute
State the air intake duct of the air flue connection of carburator, it is characterised in that described shell is provided with first be connected with described first oil duct
Oilhole, described shell is disposed with interconnective pump cover, spring, diaphragm, top on the axis direction of described first oilhole
Pin, thimble guide and valve base, described valve base connects with described first oilhole, and described thimble guide is provided with and is interconnected
Radial direction oil hole and ring shaped oil passage, described ring shaped oil passage is connected with described air intake duct by a fuel oil jet pipe, described diaphragm and
Space between described thimble guide is connected with described air intake duct by an air pressure induction tube, and described diaphragm is led with described thimble
Space between Tong is connected with the space between described diaphragm with described pump cover by an air pressure balance duct.
The accelerator of aviation piston engine carburator the most according to claim 1, it is characterised in that described first oil
Hole is provided with a first fuel oil flow nipple.
The accelerator of aviation piston engine carburator the most according to claim 1, it is characterised in that described fuel oil sprays
It is provided with a second fuel oil flow nipple between pipe and described ring shaped oil passage.
The accelerator of aviation piston engine carburator the most according to claim 1, it is characterised in that described Balance Air
Road is provided with an air throttle mouth.
The accelerator of aviation piston engine carburator the most according to claim 1, it is characterised in that described air pressure sense
The most described carburator side should be arranged on by pipe opening in described air intake duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620648950.XU CN205876545U (en) | 2016-06-28 | 2016-06-28 | Accelerating device of aviation piston engine vaporizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620648950.XU CN205876545U (en) | 2016-06-28 | 2016-06-28 | Accelerating device of aviation piston engine vaporizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205876545U true CN205876545U (en) | 2017-01-11 |
Family
ID=57692836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620648950.XU Active CN205876545U (en) | 2016-06-28 | 2016-06-28 | Accelerating device of aviation piston engine vaporizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205876545U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110892143A (en) * | 2017-07-27 | 2020-03-17 | 沃尔布罗有限责任公司 | Charge forming system for combustion engine |
-
2016
- 2016-06-28 CN CN201620648950.XU patent/CN205876545U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110892143A (en) * | 2017-07-27 | 2020-03-17 | 沃尔布罗有限责任公司 | Charge forming system for combustion engine |
| CN110892143B (en) * | 2017-07-27 | 2022-05-03 | 沃尔布罗有限责任公司 | Charge forming system for combustion engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |