CN207248255U - A kind of indirect acting type fuel-metering device - Google Patents
A kind of indirect acting type fuel-metering device Download PDFInfo
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- CN207248255U CN207248255U CN201720678437.XU CN201720678437U CN207248255U CN 207248255 U CN207248255 U CN 207248255U CN 201720678437 U CN201720678437 U CN 201720678437U CN 207248255 U CN207248255 U CN 207248255U
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Abstract
The utility model discloses a kind of indirect acting type fuel-metering device, including pipeline transport system, high temperature modification oval gear flowmeter system, equivalent valve metering system and indirect type equal differential pressure valve control system, high temperature modification oval gear flowmeter system, equivalent valve metering system and indirect type equal differential pressure valve control system are attached by pipeline transport system；The pipeline transport system includes No.1 pipe, No. two pipes, No. three pipes, No. four pipes, No. five pipes, No. six pipes, No. seven pipes, No. eight pipes, No. nine pipes, No. ten pipes, ride on Bus No. 11 pipe, ten No. two pipes, ten No. three pipes, ten No. four pipes, ten No. five pipes, ten No. six pipes, ten No. seven pipes, ten No. eight pipes and ten No. nine pipes.The utility model is simple in structure, and aperture stroke is small, effectively reduces steady-state error, is the high indirect acting type fuel-metering device of reliability；In addition, using high temperature modification oval gear flowmeter system, the precision of control is high, small by external influence factor.
Description
Technical field
Aero-engine fuel injection system engineering test field is the utility model is related to, is specifically a kind of indirect acting type
Fuel-metering device.
Background technology
At present in aviation field, aero-engine is generally sufficiently expensive, the research of aero-engine fuel-metering device into
For current technological improvement problem.The continuous development of modern aeroengine, higher is proposed to the control performance of engine
It is required that.The increase of control function and the raising of control accuracy are so that the requirement to control system is higher and higher.During aero-engine
The margin of safety can be often operated in, if the working status that cannot accurately control fuel flow and may make engine exceedes safe edge
Boundary, causes engine the damage even serious consequence of fatal crass.The fuel flow for controlling engine under normal circumstances is phase
To being relatively easy to, but different zones flight of the aircraft in its flight envelope, the working status of engine are also constantly occurring
Change, so the pressure of oil pump and the pressure of combustion chamber also change at any time.In this case, in-engine combustion
The inlet and outlet pressure of oil measurement device is all uncertain.How essence to engine fuel flow is kept in this case
Really control is the technical barrier that emphasis should solve.Therefore, it is necessary to a kind of apparatus structure of R ＆ D design is simple, reliability is high, opens
Degree stroke is smaller, effectively reduces steady-state error, the aero-engine fuel oil meter that should can be used extensively in aero-engine
Device is measured to keep the accurate control to engine fuel flow.
Utility model content
The purpose of this utility model is to provide a kind of indirect acting type fuel-metering device, to solve above-mentioned background technology
The problem of middle proposition.
To achieve the above object, the utility model provides following technical solution：
A kind of indirect acting type fuel-metering device, including pipeline transport system, high temperature modification oval gear flowmeter system,
Equivalent valve metering system and indirect type equal differential pressure valve control system, high temperature modification oval gear flowmeter system, equivalent valve
Metering system and indirect type equal differential pressure valve control system are attached by pipeline transport system；The pipeline transport system bag
Include No.1 pipe, No. two pipes, No. three pipes, No. four pipes, No. five pipes, No. six pipes, No. seven pipes, No. eight pipes, No. nine pipes, No. ten pipes, 11
Number pipe, ten No. two pipe, ten No. three pipe, ten No. four pipe, ten No. five pipe, ten No. six pipe, ten No. seven pipe, ten No. eight pipe and ten No. nine
Pipe；The indirect type equal differential pressure valve control system includes the pair of one piston cylinder of the main body with two-piston cylinder and intercommunicating pore and band
Body, is attached between main body and accessory body by main piston, and one end of main piston is extend into the piston cylinder inside accessory body, separately
One end is extend into the one of piston cylinder of body interior, and auxiliary piston, body interior are equipped with another piston cylinder of body interior
Two piston cylinders between connected by intercommunicating pore；The opening of the piston cylinder is provided with casing；Ride on Bus No. 11 pipe, ten No. two
Pipe, ten No. nine pipes are positioned at the inside of accessory body, and the axis of No. bis- pipes of ride on Bus No. 11 Guan Yushi is on same vertical curve, ten No. nine Guan Shi
No. bis- pipe junctions of No.1 Guan Yushi are connected with ride on Bus No. 11 pipe, ten No. two pipes and one end of main piston is placed in ten No. nine pipes；Institute
State ten No. three pipes, ten No. four pipe, ten No. five pipe, ten No. six pipe, ten No. seven pipe, ten No. eight pipes be located at body interior, main piston
The other end is placed in ten No. eight pipes, and ten No. six pipes, ten No. seven pipes are vertical on the downside of ten No. eight pipes, ten No. six pipes, ten No. seven pipes
Lower end and ten No. three pipes, ten No. five pipes it is vertical and connect, ten No. three manage, the axis of ten No. five pipes are located along the same line,
Ten No. three pipes, ten No. five pipes are internally provided with auxiliary piston, and ten No. four pipes are vertical under ten No. three pipes, ten No. five pipe junctions
Side；The outlet of ten No. two pipes is connected with one end of No.1 pipe, and the other end of No.1 pipe is connected with one end of No. two pipes, No. two pipes
The other end is connected to high temperature modification oval gear flowmeter system side, the opposite side and three of high temperature modification oval gear flowmeter system
The connection of number pipe, one end connection of No. three Guan Yuliu pipes, the other end of No. six pipes are connected with the side of equivalent valve metering system,
The opposite side of equivalent valve metering system is connected with one end of No. seven pipes, and the other end of No. seven pipes is connected with No. eight pipes, No. three pipes
No. four pipes are also associated with the junction of No. six pipes, the end of No. four pipes is connected with No. five pipes, and the end of No. five pipes is connected to master
On the casing of ten No. three pipe ends on body, No. seven pipe with No. eight pipe junctions be also associated with No. nine pipe, the end of No. nine pipes with
One end connection of No. ten pipes, the other end of No. ten pipes are connected on the casing of ten No. five pipe ends in main body.
As further program of the utility model：The pipeline transport system is to be connected with various terminal with each system
Round tube.
As further program of the utility model：The high temperature modification oval gear flowmeter system include two end connectors,
Shell, two vertical oval blade profile gear, two axis, four bearings and end caps mutually moved and metering display table, connector
Installed in the both sides of shell, axis is fixed on the inside of shell, oval blade profile gear one on the other by installing bearing at both ends
Orthogonal to be sleeved on axis, end cap and metering show table installation on the shell.
As further program of the utility model：The equivalent valve metering system includes spherical shell, and spherical shell is by two and half
Spherical shell forms, and holes and wedge groove are opened on spherical shell, and the interior bulb equivalent valve of a strap wrenches is placed in spherical shell.
Compared with prior art, the beneficial effects of the utility model are：
First, simple in structure, aperture stroke is small, effectively reduces steady-state error, is the high indirect acting type fuel oil of reliability
Metering device；
2nd, using high temperature modification oval gear flowmeter system, the precision of control is high, small by external influence factor；
3rd, using spherical equivalent valve metering system and the oil of indirect type equal differential pressure valve control system match control fuel oil
Pressure and flow；
4th, the process of differential pressure valve control main piston is relied primarily on using fuel flow control, so as to change oil inlet
Input flow rate, achievees the purpose that pressure difference before and after stable metering valve, and the differential pressure valve aperture stroke of this mode is smaller, so as to
Effectively to reduce steady-state error.In the high energy extensive use in aero-engine of precision prescribed.
Brief description of the drawings
Fig. 1 is the structure diagram of indirect acting type fuel-metering device.
Fig. 2 is the structure diagram of indirect acting type fuel-metering device high temperature type oval gear flowmeter system.
Fig. 3 is the structure diagram of equivalent valve metering system in indirect acting type fuel-metering device.
Fig. 4 is the structure diagram of indirect type equal differential pressure valve control system in indirect acting type fuel-metering device.
Fig. 5 is the process for using structure diagram of indirect acting type fuel-metering device.
In figure：1- pipeline transport systems, 2- high temperature modification oval gear flowmeters system, 3- equivalent valve metering system, 4-
Indirect type equal differential pressure valve control system, 5- connectors, 6- shells, 7- ellipse blade profiles gear, 8- axis, 9- bearings, 10- lid and
Metering show table, 11- hemispherical Shells, bulb equivalent valve in 12-, 13- main bodys, 14- accessory bodies, 15- main pistons, 16- auxiliary pistons,
17- main springs, 18- auxiliary springs, 19- casings, 111- No.1s pipe, No. bis- pipes of 112-, No. tri- pipes of 113-, 114- No. tetra- pipes, 115-
No. five pipes, No. seven No. six pipes of 116-, 117- pipes, No. nine No. eight pipes of 118-, 119- pipes, No. ten pipes of 1110-, 1111- ride on Bus No. 11s pipe,
Ten No. two pipes of 1112-, ten No. three pipes of 1113-, ten No. four pipes of 1114-, ten No. five pipes of 1115-, 1116- ten No. six pipes, 1117-
Ten No. nine ten No. seven pipes, ten No. eight pipes of 1118-, 1119- pipes.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
Please refer to Fig.1~5, in the utility model embodiment, a kind of indirect acting type fuel-metering device, including pipeline are defeated
Send system 1, high temperature modification oval gear flowmeter system 2, equivalent valve metering system 3 and indirect type equal differential pressure valve control system
4, high temperature modification oval gear flowmeter system 2, equivalent valve metering system 3 and indirect type equal differential pressure valve control system 4 pass through
Pipeline transport system 1 is attached；The pipeline transport system 1 includes the pipe 113, four of pipe 112, three of No.1 pipe 111, two
Pipe 114, five pipe 115, six pipe 116, seven pipe 117, eight pipe 118, nine pipe 119, ten pipe 1110, ride on Bus No. 11 pipe
1111st, ten No. two pipes 1116,17 of pipe 1115,16 of pipe 1114,15 of pipe 1113,14 of pipe 1112,13
1117, ten No. eight pipes 1118 of pipe and ten No. nine pipes 1119；The indirect type equal differential pressure valve control system 4 includes band two-piston cylinder
And the accessory body 14 of one piston cylinder of main body 13 and band of intercommunicating pore, connected between main body 13 and accessory body 14 by main piston 15
Connect, one end of main piston 15 is extend into the piston cylinder inside accessory body 14, and it is one of living that the other end extend into the inside of main body 13
In plug cylinder, auxiliary piston 16 is equipped with another piston cylinder of the inside of main body 13, pass through company between two piston cylinders inside main body 13
Through hole connects；The opening of the piston cylinder is provided with casing 19；The pipe 1112,19 of ride on Bus No. 11 pipe 1111,12 is managed
1119 are located at the inside of accessory body 14, and on same vertical curve, ten No. nine are managed the axis of ride on Bus No. 11 pipe 1111 and ten No. two pipes 1112
1119 are connected and main piston in 1111, ten No. two pipes 1112 of ride on Bus No. 11 pipe 1111 and ten No. two 1112 junctions of pipe and ride on Bus No. 11 pipe
15 one end is placed in ten No. nine pipes 1119；The pipe 1114,15 of ten No. three pipes 1113,14 pipe 1115,16
The pipe 1118 of pipe 1117,18 of pipe 1116,17 is located inside main body 13, and the other end of main piston 15 is placed in ten No. eight pipes
In 1118, ten No. six pipes, 1116, ten No. seven pipes 1117 are vertical at ten No. eight downsides of pipe 1118, ten No. six pipes 1116,17
1113, ten No. five pipes 1115 in the lower end of pipe 1117 and ten No. three pipes are vertical and connect, ten No. three pipes, 1113, ten No. five pipes 1115
Axis is located along the same line, and 16, ten No. four pipes 1114 of auxiliary piston are internally provided with ten No. three pipes, 1113, ten No. five pipes 1115
It is vertical at the downside of ten No. three pipes, 1113, ten No. five 1115 junctions of pipe；The outlet of ten No. two pipes 1112 and No.1 pipe 111
One end connects, and the other end of No.1 pipe 111 is connected with one end of No. two pipes 112, and the other end of No. two pipes 112 is connected to high temperature modification
2 side of oval gear flowmeter system, the opposite side of high temperature modification oval gear flowmeter system 2 are connected with No. three pipes 113, No. three
Pipe 113 is connected with one end of No. six pipes 116, and the other end of No. six pipes 116 is connected with the side of equivalent valve metering system 3, when
The opposite side of amount valve metering system 3 is connected with one end of No. seven pipes 117, and the other end of No. seven pipes 117 connects with No. eight pipes 118
Connect, the junction of No. three pipes 113 and No. six pipes 116 is also associated with No. four pipes 114, and the end of No. four pipes 114 connects with No. five pipes 115
Connect, the end of No. five pipes 115 is connected on the casing 19 of ten No. three 1113 ends of pipe in main body 13, No. seven pipes 117 and No. eight
118 junction of pipe is also associated with No. nine pipes 119, and the end of No. nine pipes 119 is connected with one end of No. ten pipes 1110, No. ten pipes
1110 other end is connected on the casing 19 of ten No. five 1115 ends of pipe in main body 13.
The pipeline transport system 1 is the round tube being connected with various terminal with each system.
The pipeline transport system 1 is managed including the pipe 113, four of pipe 112, three of No.1 pipe 111, two pipe 114, five
115th, 1111, ten No. two No. six pipe 119, ten of pipe 118, nine of pipe 117, eight of pipe 116, seven pipes 1110, ride on Bus No. 11 pipe pipes
1112nd, ten No. three pipes 1117,18 of pipe 1116,17 of pipe 1115,16 of pipe 1114,15 of pipe 1113,14
Pipe 1118 and ten No. nine pipes 1119.
The high temperature modification oval gear flowmeter system 2 is vertically mutually moved ellipse including two end connectors 5,6, two, shell
8, four, axis bearing 9 and the end cap of circular profile gear 7, two and metering show table 10, and connector 5 is installed on the both sides of shell 6, axis
8 inside for being fixed on shell 6 one on the other by installing bearing 9 at both ends, oval blade profile gear 7 is orthogonal to be sleeved on
On axis 8, end cap and metering show that table 10 is installed on shell 6.
The equivalent valve metering system 3 includes spherical shell, and spherical shell is made of two hemispherical Shells 11, opened on spherical shell holes and
Wedge groove, places the interior bulb equivalent valve 12 of a strap wrenches in spherical shell.
The indirect type equal differential pressure valve control system 4 includes one piston of the main body 13 with two-piston cylinder and intercommunicating pore and band
The accessory body 14 of cylinder, is attached, one end of main piston 15 extend into accessory body between main body 13 and accessory body 14 by main piston 15
In piston cylinder inside 14, the other end is extend into the one of piston cylinder in the inside of main body 13, another piston of the inside of main body 13
It is equipped with auxiliary piston 16 in cylinder, is connected between two piston cylinders inside main body 13 by intercommunicating pore, the accessory body 14 of one piston cylinder of band,
Regulated and controled therebetween by main piston 15, the folding of the access opening between two piston cylinders is controlled by auxiliary piston 17
Degree, the process of Mechanical course two-piston is carried out with main spring 17 and auxiliary spring 18, with the casing 19 of plurality of specifications between piston
It is attached and seals.
The opening of the piston cylinder is provided with casing 19.
The metering method of indirect acting type fuel-metering device, comprises the following steps in above technical scheme：
A, by ride on Bus No. 11 pipe 1111, the opening degree through ten No. nine pipes 1119 controls fuel oil, then by ten No. two pipes 1112,
No.1 pipe 111 and No. two pipes 112 enter high temperature modification oval gear flowmeter system 2, high temperature modification oval gear flowmeter system 2
Fuel metering and pressurization are output to No. three pipes 113；
B, by the fuel oil of No. three pipes 113, it is divided into working portion and voltage stabilization part, working portion passes through through No. six pipes 116
Into equivalent valve metering system 3, fuel oil is set to pass through another voltage stabilization part after opening the spanner of equivalent valve metering system 3
Fuel oil then enters indirect type equal differential pressure valve control system 4 through No. four pipe 115,13 of pipe 114, five pipes 1113；
C, a part for working portion fuel oil enters fuel nozzle by No. eight pipes 118 and burns, another not to be divided into
Voltage stabilization part fuel oil enters indirect type equal differential pressure valve control system 4 through 119, No. ten pipes 1110 of No. nine pipes；
D, two parts voltage stabilizing fuel oil entered from ten No. three pipes 1113 and No. ten pipes 1110, pressure is formed at the both ends of secondary plug 17
Difference, this pressure difference cause spring to stretch, so as to control the process of auxiliary piston 16 and make ten No. seven pipes 1117 of pipe and ten No. eight
The opening degree of pipe 1118, the fuel oil passed through form pressure difference at 15 both ends of main piston again, this pressure difference causes spring to stretch, from
And control the process of main piston 15 and make the opening degree of ten No. eight pipes 1118 and ten No. nine pipes 1119, so that reaction control 11
Number pipe 1111 is transported to the fuel flow of ten No. two pipes 1112；
E, oil cylinder recycling is returned to from the unnecessary fuel oil of ten No. five pipes 1115 by ten No. four pipes 1114.
The utility model is simple in structure, and aperture stroke is small, effectively reduces steady-state error, is the high indirectly-acting of reliability
Formula fuel-metering device；In addition, using high temperature modification oval gear flowmeter system, the precision of control is high, by external influence factor
It is small；Secondly, using spherical equivalent valve metering system and the oil pressure of indirect type equal differential pressure valve control system match control fuel oil
And flow；Meanwhile the process of differential pressure valve control main piston is relied primarily on using fuel flow control, so as to change oil inlet
Input flow rate, achievees the purpose that pressure difference before and after stable metering valve, and the differential pressure valve aperture stroke of this mode is smaller, so as to
Effectively to reduce steady-state error.In the high energy extensive use in aero-engine of precision prescribed.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of the spirit or essential attributes without departing substantially from the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The scope of type is indicated by the appended claims rather than the foregoing description, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (4)
1. a kind of indirect acting type fuel-metering device, it is characterised in that including pipeline transport system (1), high temperature modification ellipse tooth
Flowmeters system (2), equivalent valve metering system (3) and indirect type equal differential pressure valve control system (4), high temperature modification ellipse tooth
Flowmeters system (2), equivalent valve metering system (3) and indirect type equal differential pressure valve control system (4) pass through Pipeline transport
System (1) is attached；The pipeline transport system (1) includes No.1 pipe (111), No. two pipes (112), No. three pipes (113), four
Number pipe (114), No. five pipe (115), No. six pipe (116), No. seven pipe (117), No. eight pipe (118), No. nine pipe (119), No. ten pipe
(1110), ride on Bus No. 11 pipe (1111), ten No. two pipes (1112), ten No. three pipes (1113), ten No. four pipes (1114), ten No. five pipes
(1115), ten No. six pipes (1116), ten No. seven pipes (1117), ten No. eight pipes (1118) and ten No. nine pipes (1119)；It is described indirect
Formula equal differential pressure valve control system (4) includes the accessory body of one piston cylinder of main body (13) and band with two-piston cylinder and intercommunicating pore
(14), it is attached between main body (13) and accessory body (14) by main piston (15), one end of main piston (15) extend into pair
In the internal piston cylinder of body (14), the other end is extend into the internal one of piston cylinder of main body (13), and main body (13) is internal another
Auxiliary piston (16) is equipped with one piston cylinder, is connected between two internal piston cylinders of main body (13) by intercommunicating pore；The work
The opening of plug cylinder is provided with casing (19)；Ride on Bus No. 11 pipe (1111), ten No. two pipes (1112), ten No. nine pipes (1119) are positioned at pair
The inside of body (14), with ten No. two axis for managing (1112) on same vertical curve, ten No. nine are managed ride on Bus No. 11 pipe (1111)
(1119) connect in ride on Bus No. 11 pipe (1111) and ten No. two pipe (1112) junctions and ride on Bus No. 11 pipe (1111), ten No. two pipes (1112)
Connect and one end of main piston (15) is placed in ten No. nine pipes (1119)；Ten No. three pipes (1113), ten No. four pipes (1114), ten
No. five pipes (1115), ten No. six pipes (1116), ten No. seven pipes (1117), ten No. eight pipes (1118) are located at main body (13) inside, main
The other end of piston (15) is placed in ten No. eight pipes (1118), and ten No. six pipes (1116), ten No. seven pipes (1117) are vertical at ten
On the downside of No. eight pipes (1118), ten No. six pipes (1116), ten No. seven lower ends for managing (1117) and ten No. three pipes (1113), ten No. five pipes
(1115) vertical and connection, ten No. three pipes (1113), the axis of ten No. five pipes (1115) are located along the same line, in ten No. three pipes
(1113), ten No. five pipes (1115) are internally provided with auxiliary piston (16), and ten No. four pipes (1114) are vertical at ten No. three pipes
(1113), the downside of ten No. five pipe (1115) junctions；The outlet of ten No. two pipes (1112) connects with one end of No.1 pipe (111)
Connect, the other end of No.1 pipe (111) is connected with one end of No. two pipes (112), and the other end of No. two pipes (112) is connected to high temperature modification
Oval gear flowmeter system (2) side, the opposite side of high temperature modification oval gear flowmeter system (2) and No. three pipes (113) are even
Connect, No. three pipes (113) are connected with one end of No. six pipes (116), the other end and the equivalent valve metering system of No. six pipes (116)
(3) side connection, the opposite side of equivalent valve metering system (3) are connected with one end of No. seven pipes (117), No. seven pipes (117)
The other end with No. eight pipe (118) be connected, No. three pipe (113) with No. six pipe (116) junctions be also associated with No. four manage
(114), the end of No. four pipes (114) is connected with No. five pipes (115), and the end of No. five pipes (115) is connected in main body (13)
On the casing (19) of ten No. three pipe (1113) ends, No. seven pipes (117) are also associated with No. nine pipes with No. eight pipe (118) junctions
(119), the end of No. nine pipes (119) is connected with one end of No. ten pipes (1110), and the other end of No. ten pipes (1110) is connected to master
On the casing (19) of ten No. five pipe (1115) ends on body (13).
A kind of 2. indirect acting type fuel-metering device according to claim 1, it is characterised in that the Pipeline transport system
System (1) is the round tube being connected with various terminal with each system.
3. a kind of indirect acting type fuel-metering device according to claim 1, it is characterised in that the high temperature modification is oval
Gear wheel flow-rate meter systems (2) include two end connectors (5), shell (6), two vertical oval blade profile gears (7) mutually moved,
Two axis (8), four bearings (9) and end cap and metering show table (10), and connector (5) is installed on the both sides of shell (6), axis (8)
The inside for being fixed on shell (6) one on the other by installing bearing (9) at both ends, oval blade profile gear (7) are orthogonal
It is sleeved on axis (8), end cap and metering show that table (10) is installed on shell (6).
A kind of 4. indirect acting type fuel-metering device according to claim 1, it is characterised in that the equivalent valve meter
Amount system (3) includes spherical shell, and spherical shell is made of two hemispherical Shells (11), holes and wedge groove are opened on spherical shell, is put in spherical shell
Put the interior bulb equivalent valve (12) of a strap wrenches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720678437.XU CN207248255U (en) | 2017-06-12 | 2017-06-12 | A kind of indirect acting type fuel-metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720678437.XU CN207248255U (en) | 2017-06-12 | 2017-06-12 | A kind of indirect acting type fuel-metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207248255U true CN207248255U (en) | 2018-04-17 |
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ID=61876686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720678437.XU Active CN207248255U (en) | 2017-06-12 | 2017-06-12 | A kind of indirect acting type fuel-metering device |
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| Country | Link |
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| CN (1) | CN207248255U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063363A (en) * | 2017-06-12 | 2017-08-18 | 西安成立航空制造有限公司 | A kind of indirect acting type fuel-metering device and its metering method |
| CN107084051A (en) * | 2017-06-12 | 2017-08-22 | 西安成立航空制造有限公司 | A kind of direct acting type fuel-metering device and its metering method |
-
2017
- 2017-06-12 CN CN201720678437.XU patent/CN207248255U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063363A (en) * | 2017-06-12 | 2017-08-18 | 西安成立航空制造有限公司 | A kind of indirect acting type fuel-metering device and its metering method |
| CN107084051A (en) * | 2017-06-12 | 2017-08-22 | 西安成立航空制造有限公司 | A kind of direct acting type fuel-metering device and its metering method |
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