CN106644250B - The mancarried device of air pressure measurement - Google Patents
The mancarried device of air pressure measurement Download PDFInfo
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- CN106644250B CN106644250B CN201611150647.8A CN201611150647A CN106644250B CN 106644250 B CN106644250 B CN 106644250B CN 201611150647 A CN201611150647 A CN 201611150647A CN 106644250 B CN106644250 B CN 106644250B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves
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- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The present invention provides a kind of mancarried devices of air pressure measurement, belong to aero-engine technology field.The device mainly includes cabinet, pressure reducer, pressure gauge, air filter, throttle valve, gas source tank and various connection hoses.Its structure of the device is simple, and lightweight and portable in volume can be used alone；And meet removable, the requirement of Portable belt；Therefore it is operational and practical.Device of the present invention is used in the periodic maintenance of aero-engine outfield to fuel pump governor control parameter Pk *It measures, can accurately measure the P of fuel pump governor controlk *Actual value compares measured value and engine log book record value；The difference as obtained by comparison determines whether to adjust the P that fuel pump governor controlsk *Pressure；With air pressure value after ensuring aero-engine high-pressure compressor within the scope of tolerance, guarantee the supply of engine fuel, so that it is guaranteed that aeroengine operation status is reliable and stable, safe operation.
Description
Technical field
The present invention relates to a kind of device for pressure measurement, in particular to a kind of for air after aero-engine high-pressure compressor
The mancarried device of pressure measurement, belongs to aero-engine technology field.
Background technique
In the course of work of aero-engine, air pressure after the parameter high-pressure compressor that wherein fuel pump governor controls
(Pk *) may change.Pk *Change necessarily will affect the change of engine maximum fuel supply amount, so as to cause engine
Rotor maximum speed and turbine inlet temperature change, and then more serious problem is that may cause engine rotor super
Turn, turbine overtemperature.Therefore, the ginseng that fuel pump governor (Н Р -30 К П) must be controlled in the periodic maintenance of engine outfield
Number Pk *It measures, and the parameter is adjusted according to measurement result, just can guarantee engine normal operation and trouble free service.
Currently, to the parameter P of fuel pump governor controlk *The device measured also has a use in engine running bench support, but the dress
Setting each section is dispersion fixed and arranged, and operation is extremely inconvenient, and integrally builds with engine running bench support, therefore, the dress
Setting can not be used alone, it is even more impossible to move and be convenient for carrying, thus be unable to satisfy in the periodic maintenance of engine outfield to Pk *Ginseng
The requirement that number easily measures.
Summary of the invention
The purpose of the present invention is exactly directed to aero-engine and controls in periodic maintenance to fuel pump governor (Н Р -30 К П)
The parameter P of systemk *Existing defect and deficiency when measuring, and design a kind of each component centralized arrangement, exclusive use, can be full
Foot measurement and operation facilitate and carry the mancarried device of also convenient air pressure measurement；It is measured by the device fuel-displaced
The P of pump control mechanism controlk *Pressure actual value, with air pressure after ensuring aero-engine high-pressure compressor in tolerance range
It is interior, to guarantee that the supply of aero-engine fuel oil meets needed for the working condition of engine；And then ensure the normal of engine
Work and safe operation.
To achieve the above object, the present invention is realized using the technical solution being made of technical measures below.
A kind of mancarried device of air pressure measurement of the present invention, including cabinet, gas source hose, gas source tank, decompression
Device, pressure gauge, air filter, first throttle valve, second throttle, three-way connection, the first quick connector, the second quick connector supply
Gas hose and survey pressure hose；Gas source hose one end is connect with pressure reducer one end, and the other end is connect with gas source tank, pressure reducer
The other end is connect by connecting tube with air filter one end, and the air filter other end is connect by connecting tube with first throttle valve one end,
The first throttle valve other end is connect by connecting tube with the one of connector of three-way connection, and three-way connection other two connector passes through
Connecting tube is connect with second throttle and second quick connector one end respectively, the second quick connector other end and air supply hose one end
Connection, first quick connector one end are connect by connecting tube with pressure gauge, and the other end is connect with pressure hose one end is surveyed；Institute
Pressure reducer, pressure gauge, air filter, first throttle valve, second throttle, the first quick connector and the second quick connector is stated to arrange
In in cabinet, gas source tank is installed on outside cabinet；When measurement, according to the parameter Pk of oil in engine pump control mechanism control*Measurement is wanted
It asks, the air supply hose and survey pressure hose is connect with engine tube road corresponding component, or pressure hose and engine tube will be surveyed
The connection of road corresponding component, can carry out Pk*Measurement.
In above-mentioned technical proposal, described device for before measuring air pressure, need to seal tube both ends respectively with institute
The connector for stating the first quick connector and the second quick connector closely connects sealing；The gas source hose is connect with gas source tank
The leakproofness of device is checked；Inspection finishes, and seal tube releases.
In above-mentioned technical proposal, the parameter Pk of the oil in engine pump control mechanism control*Measurement, first is that in engine
Takeoff condition is will to connect the air supply hose other end and hair of the second quick connector in device at this time when being limited by oil pressure booster
Lead to the air conduit connection of maximum pressure limiter in motivation, and connects the survey pressure hose other end of the first quick connector and lead to
Three on the air conduit of maximum pressure limiter connect mouth connection, the gas source hose other end and gas of the connection pressure reducer
Carrying shield connection, can be to Pk*It measures.
In above-mentioned technical proposal, the parameter Pk of the oil in engine pump control mechanism control*Measurement, second is that in engine
When takeoff condition is that air pressure is limited after by high-pressure compressor, hose is pressed into the survey that the first quick connector is connected in device at this time
Three connecting on mouth of being connected on the air conduit for leading to maximum pressure limiter on engine of the other end, and lead on engine
Maximum pressure limits and automatically speeds up the engine of air filter connection on the air conduit and engine of maximum pressure limiter
Upper maximum pressure limitation is connected with the mouth that connects automatically speeded up on air filter, can be to Pk*It measures.
In above-mentioned technical proposal, the gas source tank provides oil in engine pump control mechanism to gas required by its working media
Body, the interior gas provided of the gas source tank is nitrogen.
The mancarried device of air pressure measurement of the present invention is used in the periodic maintenance of aero-engine to oil pump tune
Air pressure (Pk after the parameter high-pressure compressor of section device control*) basic demand that measures is: carrying out Pk*Inspection before,
First should be according to the temperature and pressure of the fuel pump governor local environment atmosphere of measurement, judgement engine is by oil in takeoff condition
Press booster limitation, i.e. high pressure revolving speed n2Limitation；Or air pressure is limited after by high-pressure compressor, i.e. Pk *Limitation.According to institute
Condition difference point following two situation is restricted to Pk*It is checked:
1) when air pressure is limited after by high-pressure compressor, turned using gauge measurement engine high pressure in described device
The speed decline moment leads to the pressure in the air conduit of maximum pressure limiter, this pressure is the reality of fuel pump governor control
Pk *Pressure.
2) when being limited by oil pressure booster, by the way that institute's inflatable body is stepped up for air pressure in gas source tank in described device
Power, and decline this device supply gas pressure of moment using gauge measurement engine high pressure revolving speed in device, this pressure is oil pump
The practical P of adjuster controlk *Pressure.
Mancarried device of the present invention is for measuring the i.e. practical P of the above two air pressure for being restricted situationk *Pressure
When connection relationship, what it is when measurement is air pressure when air pressure is limited by oil pressure booster after high-pressure compressor, at this time
The air supply hose other end that the second quick connector is connected in device and the air for leading to maximum pressure limiter on engine are led
Pipe connection, and connect the first quick connector survey pressure the hose other end with lead on the air conduit of maximum pressure limiter three
Mouth connection is connected, the gas source hose other end of the connection pressure reducer is connect with gas source tank can be to Pk*It measures.
Mancarried device of the present invention, when measurement be high-pressure compressor after air pressure air after by high-pressure compressor
Air pressure when pressure limit, at this time will be on the other end and engine of survey pressure hose that connect the first quick connector in device
Three led on the air conduit of maximum pressure limiter connect mouth connection, and lead to the sky of maximum pressure limiter on engine
Airway limits with maximum pressure on engine and automatically speeds up on the engine that air filter connect maximum pressure limitation and automatically
Accelerate to connect mouth connection on air filter, it can be to Pk*It measures.
The practical P that fuel pump governor measured by above-mentioned two situations is controlledk *Pressure and engine log book record value
It compares, the P of adjustment fuel pump governor control is determined whether by comparing differencek *Pressure and its dosage is adjusted, and exchanged
P after wholek *Pressure is measured again, to ensure Pk *Pressure adjustment amount meets the requirements.
The advantages of mancarried device of air pressure measurement of the present invention and beneficial technical effect are as follows:
1, of the present invention a kind of for air pressure (P after aero-engine high-pressure compressork *) measurement it is portable
Device, to be measured in aero-engine flight-line service to air pressure after the parameter high-pressure compressor of fuel pump governor control
Provide equipment guarantee, structure is simple, and lightweight and portable in volume, its operability and it is practical.
2, the mancarried device of air pressure measurement of the present invention can accurately measure oil in engine pump control mechanism
The P of controlk *Pressure actual value compares measured value and engine log book record value；The difference as obtained by comparison is come really
The fixed P for whether adjusting fuel pump governor controlk *Pressure.
3, the portable pressure device of air pressure measurement of the present invention, to P adjustedk *Pressure is surveyed again
Amount, to ensure to reach in desired deviation range after air pressure value adjustment after aero-engine high-pressure compressor, to protect
The supply of engine fuel is demonstrate,proved, and then ensures that engine behavior is reliable and stable, is operated normally.
4, the pressure apparatus of air pressure measurement of the present invention not only solves the periodic maintenance of aero-engine outfield
In removable to air pressure measurement device, Portable belt requirement, and overcoming conventional apparatus each section is dispersed placement, and
The extremely inconvenient pressure measuring unit integrally built with engine running bench support.
Detailed description of the invention
The overall structure diagram of the mancarried device of Fig. 1 air pressure measurement of the present invention；
The mancarried device of Fig. 2 air pressure measurement of the present invention makees the structural schematic diagram of leakage check before use；
The mancarried device of Fig. 3 air pressure measurement of the present invention is for measuring Pk *Knot when being limited by oil pressure booster
Structure schematic diagram is identical as Fig. 1 structure；
The mancarried device of air pressure measurement described in Fig. 4 embodiment of the present invention is for measuring Pk *It is empty after by high-pressure compressor
Structural schematic diagram when air pressure power limit.
In figure, 1 cabinet, 2 gas source hoses, 3 pressure reducers, 4 pressure gauges, 5 air filters, 6 first throttle valves, 7 second throttle,
8 three-way connections, 9 first quick connectors, 10 second quick connectors, 11 air supply hoses, 12 survey pressure hose, maximum pressure on 13 engines
Power limit and the mouth that connects on air filter is automatically speeded up, maximum pressure limits and automatically speeds up air filter on 14 engines, and 15 start
Lead to the air conduit of maximum pressure limiter on machine, three on the air conduit of maximum pressure limiter are led on 16 engines
Connect mouth, 17 gas source tanks, 18 seal tubes.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawing and with specific embodiment, but is not meant to be to this
Any restriction of invention protection scope.
Its structure of the mancarried device of air pressure measurement of the present invention is as shown in Figure 1, include cabinet 1, gas source is soft
Pipe 2, gas source tank 17, pressure reducer 3, pressure gauge 4, air filter 5, first throttle valve 6, second throttle 7, three-way connection 8, first are fast
Connection-peg 9, the second quick connector 10, air supply hose 11 survey pressure hose 12；The one of 2 one end of gas source hose connection pressure reducer 3
End, 3 other end of pressure reducer are connect by connecting tube with 5 one end of air filter, and 5 other end of air filter passes through connecting tube and first throttle
The connection of 6 one end of valve, the first throttle valve other end are connect by connecting tube with the one of connector of three-way connection 8, three-way connection 8 its
Two connectors of remaininging are connect with second throttle 7 and 10 one end of the second quick connector respectively by connecting tube, the second quick connector 10
The other end is connect with 11 one end of air supply hose, and described first quick connector, 9 one end is connect by connecting tube with pressure gauge 4, another
One end is connect with pressure 12 one end of hose is surveyed.The pressure reducer 3, pressure gauge 4, air filter 5, first throttle valve 6 and second throttle 7
It is arranged in cabinet 1, gas source tank 17 is installed on outside cabinet.When measurement, according to the parameter of oil in engine pump control mechanism control
Pk*Measurement request by the air supply hose 11 and is surveyed pressure hose 12 and connect with engine tube road corresponding component, or will survey press it is soft
Pipe 12 is connect with engine tube road corresponding component, can be to Pk *It measures.
In Fig. 2, mancarried device of the present invention is for measuring air pressure Pk *Before, it needs to carry out to the close of device
It seals and checks, at this point, the connection of second quick connector 10 and air supply hose 11 disengages, the first quick connector 9 and survey pressure hose
12 connection disengages, and two quick connectors are closely then connect sealing, gas with the quick connector at 18 both ends of seal tube respectively
Source hose 2 is connect with gas source tank 17, can carry out the leakage check of the device.Inspection finishes, and seal tube 18 releases；Then institute
It states the first quick connector 9 and is reconnected with pressure 12 one end of hose is surveyed, the second quick connector 10 and 11 one end of air supply hose are again
In connection.
In Fig. 3, when the mancarried device using the air pressure measurement is for air pressure after measuring high-pressure compressor
It is air pressure when being limited by oil pressure booster, at this point, by leading on 11 other end of air supply hose and engine in device
The air conduit 15 of maximum pressure limiter connects, and leads to maximum pressure on survey pressure 12 other end of hose and engine in device
Three on the air conduit of force-limiting device connect the connection of mouth 16；It can be to Pk *It measures.
In Fig. 4, when the mancarried device using the air pressure measurement is for air pressure after measuring high-pressure compressor
It is air pressure when air pressure is limited after by high-pressure compressor, at this point, by the survey pressure hose 12 and engine in device
Three led on the air conduit of maximum pressure limiter connect the connection of mouth 16；And lead to maximum pressure limiter on engine
Air conduit 15 limits and automatically speeds up maximum pressure on the engine that air filter 14 is connect with maximum pressure on engine and limits
It is connected with the mouth 13 that connects automatically speeded up on air filter, it can be to Pk *It measures.
Embodiment
The mancarried device of the air pressure measurement is used to measure P in engine by the present embodimentk *When, used pressure
4 measurement range of power table should be not less than 4MPa, and measurement error is not more than ± 0.01MPa, 3 output pressure of pressure reducer should 0~
Between 1.96MPa, the gas in the gas source tank 17 is nitrogen, and pressure is not more than 10MPa.
The present embodiment carries out P using the mancarried device of the air pressure measurementk *Measurement specific steps are as follows:
1, using the preceding leakage check to described device, structure connects each component as shown in Figure 2
To guarantee Pk *Measurement accuracy, the present apparatus must carry out airtight test using preceding, and airtight test specific steps are such as
Under:
1.1 are attached it with pressure by gas source hose 2 in device for the gas source tank 17 of (8~10) MPa；
1.2 connect sealing with the first quick connector 9 and the second quick connector 10 respectively with 18 both ends of seal tube；
1.3 ensure that second throttle 7 is in close state, and first throttle valve 6 is in the open state；
1.4 smear liquid soap at each component joints；
1.5, which open gas source tank 17, switchs, and adjusting the pressure that pressure reducer 3 to pressure gauge 5 is shown is 1.9MPa, and fertilizer is smeared in observation
Bubble-free is answered at soap lye；If any bubble, then checks the combination situation for having connector at bubble, device is re-started after troubleshooting airtight
Property inspection；
1.6 close the switch of gas source tank 17, open second throttle 7, discharge air pressure；
1.7 decompose seal tube 18, and block the first quick connector 9 and the second quick connector 10 with blanking cover, close second
Throttle valve 7.
2, P is carried out using the present apparatusk *Inspection
Carrying out Pk *Inspection before, first according to measurement oil pump control mechanism local environment atmospheric temperature and pressure, determine
Engine is that i.e. high pressure revolving speed n is limited by oil pressure booster in takeoff condition2Limitation, or air pressure after by high-pressure compressor
Limitation is Pk *Limitation；When engine takeoff state is by Pk *When limitation, Pk *Inspection carried out by following 2.1 step requirements, when starting
Machine takeoff condition is by high pressure revolving speed n2When limitation, Pk *Inspection carried out by following 2.2 step requirements.
2.1 when engine in takeoff condition be by Pk *When limitation
A) airtight test of device is carried out by above-mentioned steps 1；
B) three led to from engine on the air conduit of maximum pressure limiter connect mouth 16 and decompose lower plug cover, then
Structure connects each component as shown in Figure 4, and the both ends for surveying pressure hose 12 are connected respectively on engine and lead to maximum pressure limit
Three on the air conduit of device processed connect on the first quick connector 9 in mouth 16 and device；
C) it starts engine and carries out engine warm-up, engine is pushed into takeoff condition, recording device by test program
Air gauge pressure P after the high-pressure compressor that middle pressure gauge 4 is shownb；
D) the absolute pressure P of air after high-pressure compressor is calculated as followsj:
Pj=Pb+Pa……………………………………………(1)
Wherein PjFor absolute pressure, PbFor air gauge pressure, PaFor atmospheric pressure；
If the P being calculated according to formula (1)jWith the P recorded in engine log bookk *Limitation beyond (- 0.0294~
0.0196) it when MPa, then needs to Pk *Limits value is adjusted, and to the P after adjustingk *Inspection is re-started, until absolute pressure Pj
With the P recorded in engine log bookk *Deviation is within the scope of ± 0.0098MPa；
E) it decomposes and surveys pressure hose 12, that is, remove survey pressure hose；
F) three led on the air conduit of maximum pressure limiter on recovery assembly engine connect the blanking cover on mouth 16,
And ensure the leakproofness of interface.
2.2 when engine in takeoff condition be by high pressure revolving speed n2When limitation
A) airtight test of device is carried out by above-mentioned steps 1；
B) it unclamps and backs out and be connected to the air conduit 15 for leading to maximum pressure limiter on engine on engine most
Big pressure limit and the cap nut connect on mouth 13 on air filter is automatically speeded up, maximum pressure limiter will be led on engine
Air conduit 15 and engine on maximum pressure limitation and automatically speed up on air filter connect mouth 13 disengagement, using blanking cover will send out
Maximum pressure limits and automatically speeds up the mouth 13 that connects on air filter and blocks and guarantee to seal at this in motivation；Then as shown in Figure 3
Structure connects each component；
C) 11 one end of air supply hose is connected on the air conduit 15 for leading to maximum pressure limiter on engine, and twisted
Its tight cap nut；
D) three on the air conduit for leading to maximum pressure limiter on engine the blanking cover on mouth 16 is connected to back out, it will
It surveys three led on the air conduit of maximum pressure limiter on pressure 12 one end of hose connection engine to connect on mouth 16, and tightens
Cap nut；
E) it by air supply hose 11 and surveys the other end of pressure hose 12 and is connected respectively in device the second quick connector 10 and the
On one quick connector 9, and supplement fixation is carried out to each hose end with fuse；
F) first throttle valve 6 in confirmation device and second throttle 7 are all in closed position, by the gas source hose
2 are attached it with equipped with the gas source tank 17 that nitrogen pressure is (8~10) MPa；
G) it starts engine and carries out engine warm-up, engine is pushed into takeoff condition by test program；
H) switch of gas source tank is opened；
I) first throttle valve 6 is steadily opened, the air conduit for leading to maximum pressure limiter on engine is gradually increased
15 supply gas pressure records engine speed n2The air meter pressure P that pressure gauge 4 is shown in engraving device when starting to reduceb；
J) switch for closing gas source tank 17 discharges nitrogen pressure through second throttle 7；
K) first throttle valve 6 and second throttle 7 are closed；
L) the absolute pressure Pj of air after high-pressure compressor is calculated by formula (1) in above-mentioned 2.1 section；
If m) the P recorded in the Pj and engine log book being calculated according to formula (1)k *Limitation exceeds (- 0.0294
~0.0196) it when MPa, then needs to Pk *Limits value is adjusted, and to the P after adjustingk *Inspection is re-started, until PjWith Pk *
Deviation is within the scope of ± 0.0098MPa；
N) it decomposes air supply hose 11, survey pressure hose 12；
F) three led on the air conduit of maximum pressure limiter on recovery assembly engine connect the blanking cover on mouth 16
It is limited with maximum pressure on engine and automatically speeds up the cap nut connect on mouth 13 on air filter, and ensure the close of interface
Feng Xing.
Note: pay attention to the reading of pressure gauge, during opening first throttle valve 6 to ensure that supply gas pressure is no more than
1.96MPa。
3, the P of fuel pump governor controlk *Adjusting
According to the absolute pressure P of air after the high-pressure compressor being calculatedjWith the fuel pump governor control of log book record
The P of systemk *Comparison difference rotate Pk *Limit adjusting screw, Pk *Limitation adjusting screw rotation is turned around, fuel pump governor control
Pk *Pressure change 0.098MPa；When rotating clockwise, the P of fuel pump governor controlk *Pressure increase；Counterclockwise when rotation, oil pump
The P of adjuster controlk *Pressure is reduced.
The present invention can accurately measure the P of fuel pump governor (Н Р -30 К П) control by embodimentk *Pressure is practical
Value, measured value and engine log book record value are compared.Determine whether to adjust fuel pump governor Н by comparing difference
The P of Р -30 К П controlk *Pressure and adjustment amount, and to P adjustedk *Pressure is measured again, to ensure Pk *Pressure tune
Whole amount meets the requirements, and then guarantees that the confession of engine fuel is given needed for meeting the working condition of engine, is safely operated.
Claims (5)
1. a kind of mancarried device of air pressure measurement, it is characterised in that including cabinet (1), gas source hose (2), gas source tank
(17), pressure reducer (3), pressure gauge (4), air filter (5), first throttle valve (6), second throttle (7), three-way connection (8), the
One quick connector (9), the second quick connector (10), air supply hose (11) and survey pressure hose (12)；Described gas source hose (2) one end
It is connect with pressure reducer (3), the other end is connect with gas source tank (17), and pressure reducer (3) other end passes through connecting tube and air filter (5)
One end connection, the air filter other end are connect by connecting tube with first throttle valve (6) one end, and the first throttle valve other end passes through company
Adapter tube connect with three-way connection (8) one of connector, three-way connection other two connector pass through connecting tube respectively with the second section
Stream valve (7) is connected with the second quick connector (10) one end, and the second quick connector other end is connect with air supply hose (11) one end；Institute
It states the first quick connector (9) one end and is connect with pressure hose (12) one end is surveyed, the other end is connected by connecting tube and pressure gauge (4)
It connects；The pressure reducer, pressure gauge, air filter, three-way connection, first throttle valve and second throttle are arranged in cabinet (1),
Gas source tank (17) is installed on cabinet (1) outside；When measurement, after the parameter high-pressure compressor of oil in engine pump control mechanism control
The air supply hose (11) and survey pressure hose (12) are connect by air pressure measurement requirement with engine tube road corresponding component,
Or pressure hose (12) will be surveyed and connect with engine tube road corresponding component, i.e., air pressure after high-pressure compressor is measured.
2. the mancarried device of air pressure measurement according to claim 1, it is characterised in that described device is for surveying
Measure air pressure before, need to seal tube (18) both ends respectively with first quick connector (9) and the second quick connector (10)
Connector connect sealing；The gas source hose (2) connect with gas source tank (17), can check the leakproofness of device；Inspection
It looks into and finishes, seal tube (18) releases.
3. the mancarried device of air pressure measurement according to claim 1 or 2, it is characterised in that described in engine
The measurement of air pressure after the parameter high-pressure compressor of fuel pump governor control, first is that engine in takeoff condition is helped by oil pressure
When power device limits, it will lead on air supply hose (11) other end and engine that connect the second quick connector (10) in device at this time
The air conduit (15) of maximum pressure limiter connects, and connect survey pressure hose (12) other end of the first quick connector (9) with
Three led on the air conduit of maximum pressure limiter on engine connect mouth (16) connection, connection pressure reducer (3)
Gas source hose (2) other end is connect with gas source tank (17), i.e., measures to air pressure after high-pressure compressor.
4. the mancarried device of air pressure measurement according to claim 1 or 2, it is characterised in that described in engine
The measurement of air pressure after the parameter high-pressure compressor of fuel pump governor control, second is that engine is by high pressure pressure in takeoff condition
When air pressure limits after mechanism of qi, the other end that survey pressure hose (12) of the first quick connector (9) is connected in device is connected at this time
Three be connected on the air conduit for leading to maximum pressure limiter on engine connect on mouth (16), and lead to maximum on engine
The air conduit (15) of pressure restrictor limits and automatically speeds up that air filter (14) connect starts with maximum pressure on engine
Maximum pressure, which is limited and automatically speeded up, on machine connects mouth (13) connection on air filter, i.e., carries out to air pressure after high-pressure compressor
Measurement.
5. the mancarried device of air pressure measurement according to claim 1, it is characterised in that the gas source tank (17) mentions
For oil in engine pump control mechanism to gas required by its working media, the interior gas provided of the gas source tank (17) is nitrogen
Gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611150647.8A CN106644250B (en) | 2016-12-14 | 2016-12-14 | The mancarried device of air pressure measurement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611150647.8A CN106644250B (en) | 2016-12-14 | 2016-12-14 | The mancarried device of air pressure measurement |
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| CN106644250A CN106644250A (en) | 2017-05-10 |
| CN106644250B true CN106644250B (en) | 2019-01-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110441008A (en) * | 2018-05-04 | 2019-11-12 | 布劳恩惰性气体系统有限公司 | Leak test equipment, computer program product and leak test component |
| CN108627331A (en) * | 2018-07-20 | 2018-10-09 | 山东珠琳智造股份有限公司 | A kind of portable detection equipment for pipe gas self-closing valve |
| CN116659769B (en) * | 2023-05-30 | 2024-01-23 | 中国民用航空飞行学院 | Method for identifying and detecting leakage flow of sealing cavity of axial-flow compressor |
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| US6298718B1 (en) * | 2000-03-08 | 2001-10-09 | Cummins Engine Company, Inc. | Turbocharger compressor diagnostic system |
| JP2004308597A (en) * | 2003-04-09 | 2004-11-04 | Ishikawajima Harima Heavy Ind Co Ltd | High altitude performance testing device and pressure control method for the same |
| CN2702291Y (en) * | 2004-06-03 | 2005-05-25 | 陈东风 | Supercharger pressure measuring instrument for supercharged engine |
| CN101256117A (en) * | 2008-03-26 | 2008-09-03 | 北京航空航天大学 | Device and method for testing synthesis parameter of aviation piston engine |
| CN204082312U (en) * | 2014-09-09 | 2015-01-07 | 韩志强 | A kind of two turbocharging systems testing apparatus |
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