RU88802U1 - REMOTE CONTROL PANEL FOR DIAGNOSTIC AND CHECK OF THE AIRCRAFT ENGINE MODE METER - Google Patents

Abstract

1. A panel for diagnosing and checking an aircraft engine mode meter, comprising a control module with built-in software, information input and display devices, a voltage supply unit, a temperature receiver simulation unit and a pneumatic unit, which includes an external pump, a low pressure channel containing a locking valve and an accurate low pressure sensor, and a high pressure channel containing a locking valve and an accurate high pressure sensor, and connected to the low pressure channel skayuschy block and is connected at the input sensor measuring low pressure pneumatic safety valve, and to channel the high-pressure producing unit is connected, and the connected high-pressure measuring sensor and a safety valve on the air inlet. ! 2. The remote control according to claim 1, the inlet and outlet blocks of which are made up of a silencer, a pneumatic throttle that controls the speed of air passage, and a pneumatic valve that opens when the power is turned off. ! 3. The remote control according to claim 1, comprising an additional atmospheric pressure measurement sensor connected to the control module.

Description

The utility model relates to tests of aircraft electronic systems and can be used as a device that checks the operability of the equipment of the aircraft engine mode meter.

Mode meter (type IP-117), designed for remote monitoring of the operating modes of aircraft products. The set of mode meter includes: a mode indicator of the type UR-117, a sensor for altitude correction of the DVK type, pressure receivers ПМ10-МР and a temperature receiver. Figure 1 shows the block diagram of the mode meter: 1 - mode meter type IR-117, 2 - mode indicator type UR-117, 3 - high-altitude correction sensor DVK, 4, 5 - pressure receivers PM10-MP and 6 - temperature receiver . The control of operating modes is based on measuring the air pressure behind the compressor, converting it to moving the side arrows of the mode meter and comparing it with the modes indicated on the central index, the position of which is proportional to atmospheric pressure and ambient temperature.

At present, a set of equipment is used to diagnose and verify the operability of the aircraft engine mode meter, consisting of a UKAMP 6X2.768.010 aneroid-manometer control unit (weight 57 kg.) And a hydraulic unit for checking the GUMP-300 manometers (weight 25 kg.) DVK sensors use the UKAMP 6X2.768.010 aneroid-manometric instrument control installation (http://civil-avia.org.ua/tech_support.html), with which they create the required low pressure and determine the position of the central index. To check the PM10 sensors, use the GUMP-300 hydraulic pressure gauge installation (http://aireo.ucoz.ru/publ/2-1-0-12-12), for which they create high pressure by pumping the alcohol-glycerin mixture to a certain lateral position arrow and determine the accuracy of pressure measurement.

The disadvantages of using this set of equipment are as follows:

- large sizes and weight of the equipment set;

- high complexity and insufficient accuracy of the equipment diagnostics process;

- the use of an alcohol-glycerin mixture as a measured medium requires an additional operation of washing the sensors after verification;

- lack of protection of the equipment under test against accidental operator error.

The problem the real utility model is aimed at eliminating the above drawbacks and creating a portable small-sized measuring console on a modern element base, which has built-in protection against overload of the equipment under test.

This goal is achieved due to the fact that the inventive panel for diagnosing and checking the mode meter of an aircraft engine is made containing a control module with built-in software, input and display devices, a voltage supply unit, a temperature receiver simulation unit and a pneumatic unit, which includes an external a pump, a low pressure channel containing a shutoff valve and an accurate low pressure sensor, and a high pressure channel containing a shutoff valve and accurate gauges high pressure, moreover, an inlet block is connected to the low pressure channel, and a low pressure measurement sensor and a safety pneumatic valve are connected to the high pressure channel, and a discharge block is connected to a high pressure channel, and a high pressure measurement sensor and a pneumatic safety valve are connected to the inlet, while and exhaust blocks made of a silencer, a pneumatic throttle that controls the speed of air passage and a pneumatic valve that opens when the pit is turned off In addition, the remote control contains an additional atmospheric pressure measurement sensor connected to the control module.

Achievable technical result consists in creating a portable small-sized measuring console. The claimed device has an external manual pump to create the required pressure, which eliminates the need for a cylinder of compressed air and a reduction gear. And thanks to the extended range of power supply for the developed device from an alternating current network with a voltage from 100 Volts to 230 Volts and a frequency from 50 Hz to 60 Hz, its universality is achieved. The claimed design of the remote control due to the use of accurate pressure sensors and safety pneumatic valves, as well as due to the fact that it carries out diagnostics and verification in a semi-automatic mode, provides improved measurement accuracy, protection of the equipment under test from accidental operator error during measurement and reduced time spent on checking the performance of the equipment. The use of air as a working medium in the verification process, in contrast to the currently used alcohol-glycerin mixture, also reduces labor and time.

The claimed combination of features is not known to the applicant from available sources of information.

The claimed solution is illustrated by the drawings:

Figure 1 presents a block diagram of a tested mode meter

Figure 2 shows a block diagram of the claimed remote control.

Figure 3 shows a diagram of a pneumatic unit.

The console for diagnosing and checking the aircraft engine mode meter contains a control module - 7, a supply voltage unit - 8, a keyboard - 9, a display - 10, a temperature receiver simulation unit - 11, a pneumatic unit - 12. The control unit 7 is used to control incoming devices in the claimed remote control and the issuance of the required supply voltage for the equipment under test.

The block of supply voltages 8 is designed to generate the supply voltages necessary for the measuring console to operate and is connected to an alternating current network with a voltage of 100 to 230 Volts and a frequency of 50 to 60 Hz. The keyboard 9 is used to control the measuring console, and the display 10 is used to display the parameters. The simulation unit of the temperature receiver 11 is designed to create resistance corresponding to the desired temperature. Pneumatic unit 12 is designed to create and measure the required air pressure for the sensors being tested.

Figure 3 shows the pneumatic diagram of the block 12 of the inventive remote control, which includes: an external manual pump 13 (hereinafter referred to as a manual pump), designed to create the pressure required to diagnose and verify the operability of the mode meter, pneumatic valves 14-19, low measurement sensors and high pressure, respectively 20 and 21, pneumatic safety valves 22 and 23, an accurate sensor for measuring low pressure 24, an accurate sensor for measuring high pressure 25, an accurate sensor for measuring atmospheric pressure 26, 27 and 28 - p non-reactors, 29-33 - air silencers, 34 - low pressure channel, 35 - high pressure channel.

The sensor 20 is designed for rough measurement of low pressure in the mode of creating low pressure. Sensor 21 - is designed for rough measurement of high pressure in high pressure generation mode. 22 and 23 - designed to protect the pneumatic system and connected sensors from exceeding the maximum allowable working pressure. Accurate low pressure measurement sensor 24 - designed to accurately measure the absolute high pressure generated in the tested successors of pressure 4 and 5. Accurate high pressure measurement sensor 25 - designed to accurately measure the low absolute pressure created in the tested altitude correction sensor 3. Accurate atmospheric pressure measurement sensor 26 - is designed to control atmospheric pressure, a pneumatic throttle 27 is designed to limit the air flow rate into the low pressure channel 34. Pneumatic throttle 28 - is designed to limit the flow rate of air discharged from the high pressure channel 35. The air silencers 29-32 are designed to reduce the sound level of the air inlet or outlet from the pneumatic system. The air silencer 33 is designed to prevent small particles of air from entering the accurate atmospheric pressure sensor 26.

To check the altitude correction sensor 3, the measuring console creates the required value of low air pressure. The control module 7 provides control signals to the pneumatic valves 14-19 and the pneumatic valves 14, 16, 18, 19 are closed, and the pneumatic valves 15, 17 are opened. Using the manual pump 13 creates the desired value of low air pressure. The control module 7 removes the information from the sensor 24 and receives the low pressure value generated in the low pressure channel 34. If the maximum allowable pressure is exceeded, the safety valve 22 is turned on and bleeds air from the low pressure channel 34. When the command to exit the low pressure generation mode is received from the keyboard 9, the control module 7 provides control signals to the pneumatic valves 14-16, while the valve 15 closes and the valves 14 and 16 open. Thanks to the pneumatic throttle 27 and the air silencers 29 and 30, the air flows smoothly from the low pressure channel 34. When the power of the measuring console is turned off, the pneumatic valve 16 automatically opens and a smooth air release also occurs.

To check the pressure receivers 4 and 5, the measuring console creates the required value of high air pressure. The control module 7 provides control signals to the pneumatic valves 14-19, while the valves 15, 16, 17, 19 are closed, and the valves 14 and 18 are opened. Using the manual pump 13 creates the desired value of high air pressure. The control module 7 removes the information from the sensor 25 and receives the high pressure generated in the high pressure channel 35. If the maximum pressure for the equipment under test is exceeded, the safety valve 23 is turned on and bleeds air from the high pressure channel 35. When the exit command is received from keyboard 9 from the high-pressure generation mode, the control module 7 supplies control signals to the pneumatic valves 17-19, while the valve 18 closes and the valves 17 and 19 open. Thanks to the pneumatic throttle 28, air silencers 31 and 32, air is smoothly discharged from the high pressure channel 35. When the power supply to the measuring console is turned off, the pneumatic valve 19 automatically opens and smooth air release also occurs.

In the case of a complete check of the aircraft engine mode meter, it is necessary to simultaneously create high air pressure in pressure receivers 4, 5 and low air pressure in the altitude correction sensor 3. To avoid pressure surges when switching from one mode to another, coarse low and high pressure sensors are used 20 and 21. Using a manual pump 13 create air pressure, the control module 7 takes the readings of the sensors 20, 21 and receives a rough value of the air pressure. When the difference in air pressure on the pneumatic valves 15 or 18 becomes less than a certain value, the control module 7 allows you to turn on 15 or 18 depending on the mode of operation.

If you need to create excess pressure or vacuum, the control module 7 additionally refers to the sensor 26 and receives the current value of atmospheric pressure.

The claimed remote control is a compact portable installation that performs diagnostics and verification of the meter of aircraft engine modes in semi-automatic mode, which allows to reduce the influence of the human factor on the accuracy of measurements and reduce the time required to verify the operability of the equipment.

Claims (3)

1. A panel for diagnosing and checking an aircraft engine mode meter, comprising a control module with built-in software, information input and display devices, a voltage supply unit, a temperature receiver simulation unit and a pneumatic unit, which includes an external pump, a low pressure channel containing a locking valve and an accurate low pressure sensor, and a high pressure channel containing a locking valve and an accurate high pressure sensor, and connected to the low pressure channel skayuschy block and is connected at the input sensor measuring low pressure pneumatic safety valve, and to channel the high-pressure producing unit is connected, and the connected high-pressure measuring sensor and a safety valve on the air inlet. 2. The remote control according to claim 1, the inlet and outlet blocks of which are made up of a silencer, a pneumatic throttle that controls the speed of air passage, and a pneumatic valve that opens when the power is turned off. 3. The remote control according to claim 1, comprising an additional atmospheric pressure measurement sensor connected to the control module.