CN208950706U - A kind of two-stroke Double-cylinder piston type heavy oil aero-engine - Google Patents
A kind of two-stroke Double-cylinder piston type heavy oil aero-engine Download PDFInfo
- Publication number
- CN208950706U CN208950706U CN201821776762.0U CN201821776762U CN208950706U CN 208950706 U CN208950706 U CN 208950706U CN 201821776762 U CN201821776762 U CN 201821776762U CN 208950706 U CN208950706 U CN 208950706U
- Authority
- CN
- China
- Prior art keywords
- air inlet
- heavy oil
- inlet pipe
- cylinder
- efi
- 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
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The utility model discloses a kind of two-stroke Double-cylinder piston type heavy oil aero-engines, including crankcase, heating mechanism, two cylinder bodies, two cylinder head, Liang Ge EFI mechanism and two ignition mechanisms, two cylinder bodies are horizontally-opposed to connect the two sides that crankcase is arranged in, the air inlet of two cylinder bodies is arranged upward, an EFI mechanism is all connected on the air inlet of each cylinder body, the EFI mechanism includes air inlet pipe, solar term door pivot, driving connecting lever, fuel injector and oil inlet pipe.The utility model adaptation range is wider, and fuel economy is preferable.The utility model loaded on the cruising altitude for being conducive to improve aircraft on aircraft；The utility model directly heats the cylinder cap of engine, heat is set to be efficiently transferred to combustion chamber to heat combustion mixture, the temperature of combustion mixture can be made to reach ignition temperature in a relatively short period of time, effectively increase the starting performance of heavy fuel burning engine under cryogenic.
Description
Technical field
The utility model relates to aero-engine technology field more particularly to a kind of two-stroke Double-cylinder piston type heavy oil aviations
Engine.
Background technique
The existing two stroke petrol engine of aviation uses gasoline as fuel, but Fuel Petroleum is volatile, is easy to produce
Security risk, unsuitable long term storage.To solve the above-mentioned problems, people take up to use heavy oil to replace gasoline as aviation
Piston-engined fuel.Heavy End Aviation Fuel refers to the aviation fuel including JP5, JP8, light diesel fuel etc., compared with Fuel Petroleum,
Astatki have it is not volatile, not easy to explode, the high feature of energy uses heavy oil then to have as the piston engine of fuel
The advantages of low oil consumption, high power to weight ratio and accessibility.However, same as fuel using heavy oil on ordinary piston engine
Have the following deficiencies place: at low ambient temperatures, i.e. heavy fuel burning engine in cold start, burning room temperature compared with
It is low, the phenomenon that fuel oil is not easy to be atomized and there are secondary condensations；On the other hand, the octane number of heavy oil is low compared with gasoline, large load operation
When engine be easy to produce deflagration phenomenon.
Utility model content
The purpose of this utility model is to provide a kind of two-stroke Double-cylinder piston type heavy oil aero-engine is provided, adapt to
Range is wider, and fuel economy is preferable, and effectively solves the problems, such as that engine cold starting difficulty and the operation of cold vehicle are unstable.
To achieve the goals above, the technical solution that the utility model is taken are as follows:
A kind of two-stroke twin-tub heavy oil aero-engine provided by the utility model, including crankcase, heating mechanism, two
Cylinder body, two cylinder head, Liang Ge EFI mechanism and two ignition mechanisms, the horizontally-opposed connection of two cylinder bodies are arranged in crankcase
Two sides, the air inlet of two cylinder bodies is arranged upward, and an EFI mechanism, the EFI are all connected on the air inlet of each cylinder body
Mechanism includes air inlet pipe, solar term door pivot, driving connecting lever, heavy oil fuel injector and oil inlet pipe, diameter of the solar term door pivot along air inlet pipe
To the middle part for being threaded through air inlet pipe, the part that solar term door pivot is in air inlet pipe orifice is connected with air throttle, at solar term door pivot
In the affixed driving connecting lever in one end outside air inlet pipe, the axis that heavy oil fuel injector favours air inlet pipe is mounted in the side of air inlet pipe, weight
The lower part of oily fuel injector connects oil inlet pipe equipped with electromagnetic switch valve, top equipped with nozzle, middle part, and nozzle is in air inlet pipe orifice
And at the downstream in air throttle；One end of air inlet pipe is connected with flange, and the EFI mechanism utilizes the flange and cylinder body phase
It is connected；The other end of air inlet pipe connects an air cleaner, and driving connecting lever connection accelerator rod controls throttle opening；Cylinder
Lid, cylinder block and top land constitute combustion chamber, and heating mechanism is embedded in cylinder head, and heavy oil fuel injector is for spraying into heavy oil
In air inlet pipe, ignition mechanism is arranged in combustion chamber, lights for mixed heavy oil to be mixed with air gas.
Further, heating mechanism is electric heating mechanism.
Further, electric heating mechanism includes electrical-heating source and heating sheet, and heating sheet and electrical-heating source are electrically connected, heating
Piece is embedded in cylinder head.
It further, further include air inlet pressure sensor and controller, air inlet pressure sensor extends to air inlet pipe orifice
In, air inlet pressure sensor is in the upper surface of heavy oil fuel injector, and air inlet pressure sensor and controller induction connect, heavy oil oil spout
Device and ignition mechanism, which are controlled with controller, to be connected.
Further, controller is electronic control unit.
Further, the air cleaner includes a cylindric lower part and a hemisphere planar top, air cleaner
Cylindric lower part is screwed in the top of air inlet pipe.The top of air cleaner is the mesh screen structure of hemisphere planar, can effectively be increased
Big air inlet area, can be convenient the installation of air cleaner by the way of being screwed on, and air inlet supervisor is made to be directly connected to air-filtering
Device is but also the structure of entire engine is more compact.
Further, ignition mechanism is spark plug igniter.
Further, two air inlet pipe in Liang Ge EFI mechanism are arranged in parallel and lower part is connected, and two EFI
In mechanism two solar term door pivots be connected and jointly be connected a driving connecting lever.
The utility model uses technical solution as above, has the following beneficial effects:
1. the utility model controls the opening and closing of electromagnetic switch valve by main control board according to the opening size of air throttle
Between control the heavy oil distributive value of nozzle, the control precision of oil spout is higher, can improve to cylinder even if high altitude localities
The suitable gaseous mixture of concentration, engine can work normally in the same old way；Therefore its adaptation range is wider, and fuel economy is preferable.?
The utility model is loaded on the cruising altitude for being conducive to improve aircraft on aircraft；
2. the utility model directly heats the cylinder head of engine, heat is set to be efficiently transferred to combustion chamber heat can
Gaseous mixture is fired, the temperature of combustion mixture can be made in a relatively short period of time to reach ignition temperature, effectively increase heavy fuel burning engine
Starting performance under cryogenic.
Detailed description of the invention
Fig. 1 is the present embodiment assembly schematic front view.
Fig. 2 is the present embodiment assembly schematic top plan view.
Fig. 3 is that the present embodiment is in crankcase the same side Liang Ge EFI mechanism schematic front view.
Fig. 4 is the stereoscopic schematic diagram of Fig. 3.
Fig. 5 is the schematic top plan view of Fig. 3.
Fig. 6 is the Section A-A schematic diagram of Fig. 3.
Specific embodiment
To further illustrate each embodiment, the utility model is provided with attached drawing.These attached drawings are in the utility model discloses
A part of appearance mainly to illustrate embodiment, and can cooperate the associated description of specification former come the running for explaining embodiment
Reason.Cooperation refers to these contents, and those of ordinary skill in the art will be understood that other possible embodiments and sheet are practical new
The advantages of type.Component in figure is not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.
Now in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of two-stroke twin-tub heavy oil aero-engine provided in this embodiment, including crankcase
1, heating mechanism, two cylinder bodies, 2, two cylinder head 3, Liang Ge EFI mechanism and two ignition mechanisms 4, two cylinder bodies 2 are horizontal right
The two sides of crankcase 1 are arranged in the connection set, and the air inlet 21 of two cylinder bodies 2 is arranged upward, the air inlet 21 of each cylinder body 2
On be all connected with an EFI mechanism, the EFI mechanism includes air inlet pipe 51, solar term door pivot 52, driving connecting lever, heavy oil fuel injector
With oil inlet pipe 53, solar term door pivot 52 is threaded through the middle part of air inlet pipe 51 along the radial direction of air inlet pipe 51, and solar term door pivot 52 is in
The part of 51 inner hole of air inlet pipe is connected with air throttle, the affixed driving connecting lever in one end that solar term door pivot 52 is in outside air inlet pipe 51,
The axis that heavy oil fuel injector favours air inlet pipe 51 is mounted in the side of air inlet pipe 51, the lower part of heavy oil fuel injector equipped with nozzle 54,
Middle part connects oil inlet pipe 53 equipped with electromagnetic switch valve, top, and nozzle 54 is in 51 inner hole of air inlet pipe and under air throttle
At trip；One end of air inlet pipe 51 is connected with flange 55, and the EFI mechanism is fixedly connected with using the flange 55 with cylinder body 2；Air inlet
The other end of pipe 51 connects an air cleaner 6, and driving connecting lever connection accelerator rod controls throttle opening；Cylinder head 3, cylinder body
2 and top land constitute combustion chamber, heating mechanism is embedded on the head 3, and heavy oil fuel injector is used to heavy oil spraying into air inlet pipe
In 51, ignition mechanism is arranged in combustion chamber, lights for mixed heavy oil to be mixed with air gas.
Heavy oil fuel injector itself is that (normally close valve means when not having input control signal a normally close valve, valve one
Directly it is in close state；And normally open valve is then when not having input control signal, and valve is constantly in open state), by one
Needle, which moves up and down, carrys out the opening and closing of control valve.When controller assigns oil spout instruction, voltage signal can flow a current through oil spout
Coil in mouth generates magnetic field and picks up needle, sprays oil plant from nozzle opening to open valve.The maximum for spraying fuel feeding is excellent
Point is exactly that the control of fuel delivery is exactly accurate, allows engine that can have correct air-fuel ratio under any state.
As shown in Figure 1, heating mechanism is electric heating mechanism.Electric heating mechanism includes electrical-heating source and heating sheet 7, heating sheet
7 and electrical-heating source electrical connection, heating sheet 7 it is embedded on the head 3.Electrical-heating source in the present embodiment is battery, but is not limited to
In this, it is also possible to other conventional electrical-heating sources, this will not be detailed here.
It further include air inlet pressure sensor 8 and controller in the present embodiment, air inlet pressure sensor 8 extends to air inlet pipe
In 51 inner holes, air inlet pressure sensor 8 is in the upper surface of heavy oil fuel injector, and air inlet pressure sensor 8 and controller induction connect,
Heavy oil fuel injector and ignition mechanism, which are controlled with controller, to be connected.Controller is electronic control unit (abbreviation ECU).
In the present embodiment, ignition mechanism 4 is spark plug igniter, can be obtained by the prior art, but not limited to this, also
It can be other conventional igniters, this will not be detailed here.
As shown in Figure 1, the air cleaner 6 includes a cylindric lower part 62 and a hemisphere planar top 61, air
The cylindric lower part 62 of filter 6 is screwed in the top of air inlet pipe 51.The top of air cleaner is the mesh screen knot of hemisphere planar
Structure can effectively increase air inlet area, can be convenient the installation of air cleaner 6 by the way of being screwed on, and keep air inlet pipe 51 straight
Air cleaner 6 is connect in succession but also the structure of entire engine is more compact.
The chief component of air cleaner 6 is filter core and casing, and wherein filter core is main filtration fraction, is carry
The filtration of gas, and casing is that provide for filter core must external structure to be protected.The job requirement of air cleaner is energy
Efficient air-filtering work is undertaken, does not increase excessive resistance for air flowing.
In the present embodiment, two air inlet pipe in Liang Ge EFI mechanism are arranged in parallel and lower part is connected, and two electricity
On spraying mechanism two solar term door pivots be connected and jointly be connected a driving connecting lever.
Heavy oil fuel injector is installed in air inlet pipe 51, is instructed according to ECU, heavy oil fuel injector is controlled by heavy oil and sprays into air inlet
In pipe 51, meanwhile, it also enters in air inlet pipe 51 through the filtered air of air cleaner 6, to be mixed with heavy oil, mixes
Heavy oil afterwards mixes with air gas and is inhaled into cylinder, and during cold start and warming up, the gaseous mixture into combustion chamber passes through
After the heating mechanism heating of the application, temperature is improved, and forms easily ignitable heavy oil combustion mixture, last ECU control
So that spark plug is generated sufficiently large ignition energy and ignition duration, light heavy oil combustion mixture, realizes that engine is cold and open
It is dynamic.
The present embodiment according to the opening size of air throttle by main control board control the opening/closing time of electromagnetic switch valve come
The heavy oil distributive value of nozzle is controlled, the control precision of oil spout is higher, can improve concentration to cylinder even if high altitude localities
Suitable gaseous mixture, engine can work normally in the same old way；Therefore its adaptation range is wider, and fuel economy is preferable.This reality
Example is applied loaded on the cruising altitude for being conducive to improve aircraft on aircraft；The present embodiment directly heats the cylinder head of engine, makes heat
Combustion chamber can be efficiently transferred to heat combustion mixture, the temperature of combustion mixture can be made in a relatively short period of time to reach
Fiery temperature effectively increases the starting performance of heavy fuel burning engine under cryogenic.
Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered
This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details
On the utility model can be made a variety of changes, be the protection scope of the utility model.
Claims (8)
1. a kind of two-stroke Double-cylinder piston type heavy oil aero-engine, it is characterised in that: including crankcase, heating mechanism, two
Cylinder body, two cylinder head, Liang Ge EFI mechanism and two ignition mechanisms, the horizontally-opposed connection of two cylinder bodies are arranged in crankcase
Two sides, the air inlet of two cylinder bodies is arranged upward, and an EFI mechanism, the EFI are all connected on the air inlet of each cylinder body
Mechanism includes air inlet pipe, solar term door pivot, driving connecting lever, heavy oil fuel injector and oil inlet pipe, diameter of the solar term door pivot along air inlet pipe
To the middle part for being threaded through air inlet pipe, the part that solar term door pivot is in air inlet pipe orifice is connected with air throttle, at solar term door pivot
In the affixed driving connecting lever in one end outside air inlet pipe, the axis that heavy oil fuel injector favours air inlet pipe is mounted in the side of air inlet pipe, weight
The lower part of oily fuel injector connects oil inlet pipe equipped with electromagnetic switch valve, top equipped with nozzle, middle part, and nozzle is in air inlet pipe orifice
And at the downstream in air throttle；One end of air inlet pipe is connected with flange, and the EFI mechanism utilizes the flange and cylinder body phase
It is connected；The other end of air inlet pipe connects an air cleaner, and driving connecting lever connection accelerator rod controls throttle opening；Cylinder
Lid, cylinder body and top land constitute combustion chamber, and heating mechanism is embedded in cylinder head, heavy oil fuel injector be used to spray into heavy oil into
In tracheae, ignition mechanism is arranged in combustion chamber, lights for mixed heavy oil to be mixed with air gas.
2. two-stroke Double-cylinder piston type heavy oil aero-engine according to claim 1, it is characterised in that: heating mechanism is
Electric heating mechanism.
3. two-stroke Double-cylinder piston type heavy oil aero-engine according to claim 2, it is characterised in that: electric heating mechanism
Including electrical-heating source and heating sheet, heating sheet and electrical-heating source electrical connection, heating sheet are embedded in cylinder head.
4. two-stroke Double-cylinder piston type heavy oil aero-engine according to claim 1, it is characterised in that: further include air inlet
Pressure sensor and controller, air inlet pressure sensor extend in air inlet pipe orifice, and air inlet pressure sensor is in heavy oil spray
The upper surface of oily device, air inlet pressure sensor and controller induction connect, and heavy oil fuel injector and ignition mechanism are controlled with controller
Connection.
5. two-stroke Double-cylinder piston type heavy oil aero-engine according to claim 4, it is characterised in that: controller is electricity
Sub-control unit.
6. two-stroke Double-cylinder piston type heavy oil aero-engine according to claim 1, it is characterised in that: the air filter
Clear device includes that a cylindric lower part and a hemisphere planar top, air cleaner cylindrical shape lower part are screwed in the upper of air inlet pipe
Portion.
7. two-stroke Double-cylinder piston type heavy oil aero-engine according to claim 1, it is characterised in that: ignition mechanism is
Spark plug igniter.
8. two-stroke Double-cylinder piston type heavy oil aero-engine according to claim 1, it is characterised in that: two EFI machines
Two air inlet pipe on structure are arranged in parallel and lower part is connected, and two solar term door pivots are connected in Liang Ge EFI mechanism
And the driving connecting lever that is connected jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821776762.0U CN208950706U (en) | 2018-10-31 | 2018-10-31 | A kind of two-stroke Double-cylinder piston type heavy oil aero-engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821776762.0U CN208950706U (en) | 2018-10-31 | 2018-10-31 | A kind of two-stroke Double-cylinder piston type heavy oil aero-engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208950706U true CN208950706U (en) | 2019-06-07 |
Family
ID=66743558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821776762.0U Active CN208950706U (en) | 2018-10-31 | 2018-10-31 | A kind of two-stroke Double-cylinder piston type heavy oil aero-engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208950706U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111535924A (en) * | 2020-05-08 | 2020-08-14 | 北京理工大学 | Ignition type two-stroke aviation heavy oil piston engine |
| CN112145285A (en) * | 2020-08-14 | 2020-12-29 | 武汉司南翼航航空工程技术有限责任公司 | Low-oil-consumption long-endurance aircraft engine |
| CN112648090A (en) * | 2021-01-12 | 2021-04-13 | 重庆航控科技有限公司 | Engine control system and method and engine |
| CN113482827A (en) * | 2021-05-26 | 2021-10-08 | 珠海天晴航空航天科技有限公司 | Engine for unmanned aerial vehicle and control method thereof |
-
2018
- 2018-10-31 CN CN201821776762.0U patent/CN208950706U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111535924A (en) * | 2020-05-08 | 2020-08-14 | 北京理工大学 | Ignition type two-stroke aviation heavy oil piston engine |
| CN112145285A (en) * | 2020-08-14 | 2020-12-29 | 武汉司南翼航航空工程技术有限责任公司 | Low-oil-consumption long-endurance aircraft engine |
| CN112648090A (en) * | 2021-01-12 | 2021-04-13 | 重庆航控科技有限公司 | Engine control system and method and engine |
| CN113482827A (en) * | 2021-05-26 | 2021-10-08 | 珠海天晴航空航天科技有限公司 | Engine for unmanned aerial vehicle and control method thereof |
| CN113482827B (en) * | 2021-05-26 | 2022-07-12 | 珠海天晴航空航天科技有限公司 | Engine for unmanned aerial vehicle and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208950706U (en) | A kind of two-stroke Double-cylinder piston type heavy oil aero-engine | |
| AU667586B2 (en) | Improvements in or relating to internal combustion engines | |
| CA2524146C (en) | Direct injection internal combustion engine and method of making and operating same | |
| CN101427019B (en) | Low emission high performance engines, multiple cylinder engines and operating methods | |
| CN105114193B (en) | A kind of Methanol/Diesel Dual Fuel diesel engine fuel oil supply method | |
| CN107143421A (en) | A kind of automatically controlled in-cylinder direct-jet two-stroke hydrogen internal combustion engine and control method | |
| CN105422256B (en) | A kind of single set fuel feed system suitable for precombustion natural gas engine | |
| CN103867322B (en) | A kind of control method of automobile and internal combustion engine | |
| CN207178044U (en) | A kind of small-sized spark ignition type aero-engine throttle body assembly of heavy oil combustion | |
| CN102536502B (en) | Method for transforming diesel engine to gasoline engine | |
| CN103850847B (en) | Diesel injector of integrated corona igniting device, fuel injector system and control method | |
| CN109184929A (en) | A kind of dual fuel engine ignition integrated system and its control method | |
| CN206600205U (en) | The intelligent engine electric-controlled gas burning system of multicylinder four-stroke | |
| CN213899119U (en) | Detachable cold starting device for two-stroke engine | |
| CN101644208B (en) | Engine energy-saving and emission-reducing system coordinated by heat pipe and cold pipe and working method thereof | |
| WO2011091571A1 (en) | Natural gas engine | |
| CN102235284A (en) | Scavenging air duct spraying device of double-stroke kerosene engine | |
| CN203430628U (en) | Spark-ignition type engine system with methanol fuel | |
| CN106089466B (en) | A method of realizing fuel injector injection control strategy | |
| CN207795392U (en) | A kind of spark ignition type diesel engine | |
| CN102758713B (en) | Electrically controlled dual-fuel injector assembly and method of work thereof | |
| CN106089465B (en) | A kind of device for realizing fuel injector injection control strategy | |
| CN2854112Y (en) | Micro-displacement compound fuel injector of electric control direct-injection petrol engine | |
| CN204299688U (en) | A kind of lean-burn gas double fuel ignition type internal-combustion engine system | |
| CN209067352U (en) | Mix time fire suppressant device for burning flame engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220719 Address after: 361000 No. 66, Biyun Middle Road, Hongtang Town, Tong'an District, Xiamen City, Fujian Province (No. 5 plant) Patentee after: Xiamen linbach Aero Engine Co.,Ltd. Address before: 361000 one of No. 66 (plant 5), Biyun Middle Road, Hongtang Town, Tong'an District, Xiamen City, Fujian Province Patentee before: XIAMRN LIMBACH AIRCRAFT ENGINE Co.,Ltd. |
|
| TR01 | Transfer of patent right |