CN204330056U - A kind of Fuel Metering Valve - Google Patents
A kind of Fuel Metering Valve Download PDFInfo
- Publication number
- CN204330056U CN204330056U CN201420702109.5U CN201420702109U CN204330056U CN 204330056 U CN204330056 U CN 204330056U CN 201420702109 U CN201420702109 U CN 201420702109U CN 204330056 U CN204330056 U CN 204330056U
- Authority
- CN
- China
- Prior art keywords
- metering valve
- oil
- hydraulic fluid
- fluid port
- metering
- 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
- Measuring Volume Flow (AREA)
Abstract
The utility model belongs to fuel oil control technology field, relates to a kind of Fuel Metering Valve.Metering valve spool (3) is arranged in metering valve lining (8), metering valve spool (3) and position transducer (6) are fixed together, spring (5) is fitted between position transducer installation sleeve (7) and metering valve spool (3), it is characterized by: have on metering valve lining (8) and draw hydraulic fluid port (4), oil-out (2) with draw hydraulic fluid port (4) and be communicated with by oil circuit (11), at oil-out (2) with draw between hydraulic fluid port (4) and be provided with flow nipple (10).The fuel oil of oil-out (2) has been incorporated into spring cavity (9) by this technical scheme, make metering valve spool (3) that the pressure reduction measured before and after fuel oil can be experienced, achieve the function of metering valve and differential pressure valve in prior art simultaneously, alleviate the weight of metering units, simplify the structure.
Description
Technical field
The utility model belongs to fuel oil control technology field, relates to a kind of Fuel Metering Valve.
Background technology
Metering valve plays the effect that metering is supplied to engine fuel in fuel control system.At present, orthoscopic metering valve is conventional metering valve structure, mainly comprises lining and metering valve two parts.Its measuring principle is orifice restriction formula, needs the pressure reduction before and after differential pressure valve control metering valve, realizes function of measuring.Two valve cause existing metering units complex structure, add weight and the space of body.
Summary of the invention
The purpose of this utility model is: provide a kind of compact conformation, the Fuel Metering Valve easy to use that are combined into by valve and linear displacement transducer.
The technical solution of the utility model is: described metering valve comprises oil-in 1, oil-out 2, metering valve spool 3, draw hydraulic fluid port 4, spring 5, position transducer 6, position transducer installation sleeve 7, metering valve lining 8, spring cavity 9, variable restrictor mouth 10 and oil circuit 11, metering valve spool 3 is arranged in metering valve lining 8, metering valve spool 3 and position transducer 6 are fixed together, spring 5 is fitted in position transducer installation sleeve 7 and metering valve spool) between, it is characterized by: have on metering valve lining 8 and draw hydraulic fluid port 4, oil-out 2 with draw hydraulic fluid port 4 and be communicated with by oil circuit 11, at oil-out 2 with draw between hydraulic fluid port 4 and be provided with flow nipple 10.
The beneficial effects of the utility model are: metering units can not need differential pressure valve, obviously simplify the structure of metering units and alleviate metering units weight, easy to use and maintenance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1-oil-in, 2-oil-out, 3-metering valve spool, 4-draw hydraulic fluid port, 5-spring, 6-position transducer, 7 position transducer installation sleeves, 8-metering valve lining, 9-spring cavity, 10-variable restrictor mouth, 11-oil circuit.
Embodiment
Below the utility model is described in further details.
See Fig. 1, this figure is the structural representation of Fuel Metering Valve.Metering valve spool 3 is arranged in metering valve lining 8, metering valve spool 3 and position transducer 6 are fixed together, spring 5 is fitted in position transducer installation sleeve 7 and metering valve spool) between, it is characterized by: have on metering valve lining 8 and draw hydraulic fluid port 4, oil-out 2 with draw hydraulic fluid port 4 and be communicated with by oil circuit 11, at oil-out 2 with draw between hydraulic fluid port 4 and be provided with flow nipple 10.
Principle of work of the present utility model is: the fuel oil before metering enters metering valve import 1 and promotes metering valve spool 3 and move, metering valve spool 3 Compress Spring 5, and makes oil-out 2 have certain aperture, and the displacement of metering valve experienced by position transducer simultaneously; The fuel oil of metering outlet 2 is through oil circuit 11, variable restrictor mouth 10 and draw hydraulic fluid port 4 and enter spring cavity 9, make metering valve spool 3 can experience the pressure reduction of metering valve import fuel oil and metering valve outlet fuel, this guarantees the pressure reduction of metering valve import fuel oil and outlet fuel and spool displacement to establish and determine relation one to one, from orifice restriction formula:
In formula
A＝(x-E)×B
ΔP＝(x-E)×K/(π×d/4)
Q: by the flow of metering valve;
X: the displacement of valve;
E: the under lap amount of valve;
B: valve nibs is the width of rectangle, valve nibs;
D: the diameter of valve;
K: the rigidity of spring;
Cd: the coefficient of flow of valve nibs;
A: the circulation area of valve when flow is Q;
△ P: the front and back pressure reduction of valve when flow is Q;
ρ: the density of fuel oil;
There is relation one to one by the displacement of the known valve spool should experienced by the flow of this Novel measuring valve and the position transducer on it of analysis above, this is achieved with regard to making the function of measuring of this type metering valve.
Variable restrictor mouth 10 can regulate its restriction characteristic according to actual service condition, ensures the reliable and stable of metering valve work.
Claims (1)
1. a Fuel Metering Valve, comprise oil-in (1), oil-out (2), metering valve spool (3), draw hydraulic fluid port (4), spring (5), position transducer (6), position transducer installation sleeve (7), metering valve lining (8), spring cavity (9), variable restrictor mouth (10) and oil circuit (11), metering valve spool (3) is arranged in metering valve lining (8), metering valve spool (3) and position transducer (6) are fixed together, spring (5) is fitted between position transducer installation sleeve (7) and metering valve spool (3), it is characterized by: have on metering valve lining (8) and draw hydraulic fluid port (4), oil-out (2) with draw hydraulic fluid port (4) and be communicated with by oil circuit (11), at oil-out (2) with draw between hydraulic fluid port (4) and be provided with flow nipple (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420702109.5U CN204330056U (en) | 2014-11-20 | 2014-11-20 | A kind of Fuel Metering Valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420702109.5U CN204330056U (en) | 2014-11-20 | 2014-11-20 | A kind of Fuel Metering Valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204330056U true CN204330056U (en) | 2015-05-13 |
Family
ID=53166406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420702109.5U Active CN204330056U (en) | 2014-11-20 | 2014-11-20 | A kind of Fuel Metering Valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204330056U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768129A (en) * | 2015-11-24 | 2017-05-31 | 西安航空动力控制科技有限公司 | It is a kind of that there are two kinds of metering valves of flow rule |
| CN106762161A (en) * | 2016-12-09 | 2017-05-31 | 中国航空工业集团公司北京航空精密机械研究所 | A kind of metering valve with displacement self-checking function |
| CN108801380A (en) * | 2017-04-28 | 2018-11-13 | 中国航发商用航空发动机有限责任公司 | Fuel meter oil return valve and fuel meter |
| CN109556670A (en) * | 2018-11-21 | 2019-04-02 | 中国航发西安动力控制科技有限公司 | A kind of high-precision flow metrological service |
| CN109958537A (en) * | 2019-04-04 | 2019-07-02 | 中国科学院工程热物理研究所 | The metering valve with displacement self-checking function based on capacitance sensor |
| CN109958536A (en) * | 2018-11-22 | 2019-07-02 | 中国航发贵州红林航空动力控制科技有限公司 | A kind of method and valve assembly improving hydraulic valve assembly flexibility |
| CN112504372A (en) * | 2020-10-30 | 2021-03-16 | 中国航发西安动力控制科技有限公司 | Sectional type and bidirectional adjustable fuel metering device and method |
| CN114109612A (en) * | 2021-11-30 | 2022-03-01 | 四川航天烽火伺服控制技术有限公司 | Metering valve assembly |
-
2014
- 2014-11-20 CN CN201420702109.5U patent/CN204330056U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768129A (en) * | 2015-11-24 | 2017-05-31 | 西安航空动力控制科技有限公司 | It is a kind of that there are two kinds of metering valves of flow rule |
| CN106762161A (en) * | 2016-12-09 | 2017-05-31 | 中国航空工业集团公司北京航空精密机械研究所 | A kind of metering valve with displacement self-checking function |
| CN106762161B (en) * | 2016-12-09 | 2018-05-08 | 中国航空工业集团公司北京航空精密机械研究所 | A kind of metering valve with displacement self-checking function |
| CN108801380A (en) * | 2017-04-28 | 2018-11-13 | 中国航发商用航空发动机有限责任公司 | Fuel meter oil return valve and fuel meter |
| CN109556670A (en) * | 2018-11-21 | 2019-04-02 | 中国航发西安动力控制科技有限公司 | A kind of high-precision flow metrological service |
| CN109958536A (en) * | 2018-11-22 | 2019-07-02 | 中国航发贵州红林航空动力控制科技有限公司 | A kind of method and valve assembly improving hydraulic valve assembly flexibility |
| CN109958537A (en) * | 2019-04-04 | 2019-07-02 | 中国科学院工程热物理研究所 | The metering valve with displacement self-checking function based on capacitance sensor |
| CN109958537B (en) * | 2019-04-04 | 2024-05-07 | 中国科学院工程热物理研究所 | Metering valve with displacement self-detection function based on capacitance sensor |
| CN112504372A (en) * | 2020-10-30 | 2021-03-16 | 中国航发西安动力控制科技有限公司 | Sectional type and bidirectional adjustable fuel metering device and method |
| CN112504372B (en) * | 2020-10-30 | 2022-08-09 | 中国航发西安动力控制科技有限公司 | Sectional type and bidirectional adjustable fuel metering device and method |
| CN114109612A (en) * | 2021-11-30 | 2022-03-01 | 四川航天烽火伺服控制技术有限公司 | Metering valve assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204330056U (en) | A kind of Fuel Metering Valve | |
| WO2018041257A1 (en) | Hydraulic system of device for testing comprehensive performance of high-pressure gear flowmeter and testing method | |
| GB201303025D0 (en) | Flow sensing based variable pump control technique in a hydraulic system with open center control valves | |
| CN201982396U (en) | Super-pressure hydraulic control check valve | |
| CN204588682U (en) | A kind of urea for vehicle charging machine | |
| CN201653689U (en) | Hydraulic system for belt wheel friction performance test stand of continuously variable transmission gear | |
| CN104481938A (en) | Hydraulic system with differential-pressure circuit | |
| CN202545395U (en) | Pilot electrohydraulic proportional overflow valve | |
| CN202720007U (en) | Two-way probe-type flow meter | |
| CN204042110U (en) | For the flow control valve of hydraulic system | |
| CN203431260U (en) | Angle type differential pressure valve | |
| CN212717420U (en) | EH oil supply device | |
| CN202561224U (en) | Flow linear control pilot valve | |
| CN203772325U (en) | Integral pore plate flowmeter | |
| CN202992605U (en) | Quantitative greaser | |
| CN203835869U (en) | High-performance catch wheel hydraulic station | |
| CN207145705U (en) | A kind of fracturing fluid recovery (backflow) motor valve | |
| CN202402922U (en) | Valve type oil supply device | |
| CN202686349U (en) | Series-type dual-chamber proportional valve | |
| CN105114385B (en) | A kind of unidirectional relief valve of double hydraulic control | |
| CN203939612U (en) | For the constant temperature hydraulic system of electrical control oil spray pump flow test stand | |
| CN207209835U (en) | Hydraulic capstan fluid path control system | |
| CN204253469U (en) | A kind of Aviation Fuel accurate control device of low flow high temperature amount | |
| CN209943667U (en) | Small leakage quantity detection device for hydraulic valve | |
| CN203348205U (en) | Hydraulic automatic reversing valve for lubricating oil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 104, Liangxi Road, Binhu District, Wuxi City, Jiangsu Province Patentee after: AECC AERO ENGINE CONTROL SYSTEM INSTITUTE Address before: 214063 No. 792 Liangxi Road, Wuxi City, Jiangsu Province Patentee before: AVIC AVIATION MOTOR CONTROL SYSTEM INSTITUTE |
|
| CP03 | Change of name, title or address |