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Velká Bíteš Turbojet Engine TJ20A Operation And Maintenance Manual

Manual is about: Velká Bíteš Turbojet Engine TJ20A

Summary of Turbojet Engine TJ20A

  • Page 1

    Pp-42a operation and maintenance manual guarantee certificate turbojet engine tj20a první brněnská strojírna velká bíteš, a.S. December 2014.

  • Page 2

    Pp-42a 2 contents of technical specification 1. Safety instructions ..................................................................................................... 3 1.1 definition ....................................................................................................................

  • Page 3

    Pp-42a 3 1. Safety instructions 1.1 definition in this manual relevant steps are preceded by warnings or cautions. For warnings and cautions contained at this manual apply these definitions: 1.1.1 warning caution! Operating procedures or maintenances jobs, methods, circumstances or instructions, who...

  • Page 4

    Pp-42a 4 1.3 safety warning the operator of turbojet engine tj20a (below only engine) must during engine testing and operation take into account the following safety risks: a) aspiration of foreign objects the engine needs a large amount of air for its function, which may result in suction of foreig...

  • Page 5

    Pp-42a 5 h) dangerous zone for safety reason a presence of persons is forbidden in the zone of radius r 1 = 12 m on sides and behind the engine in the zone of radius r 2 =1 m. Operator can be at these zone only with sound protection facilities. You are responsible for the protection of people agains...

  • Page 6

    Pp-42a 6 1.5 guarantee the guarantee relating purely to positive manufacturing or material defects arise during the guarantee period. Any other claims are eliminated. All costs regarding packing and transport will pay the seller. We will not guarantee waste during the transport. The guarantee is wit...

  • Page 7

    Pp-42a 7 2. Technical parameters 2.1 technical parameters * hold for standard conditions t 0 = 15°c, p 0 = 101,325 kpa, v 0 = 0 km/hod *max. Thrust [n] 200 5 5 max. Outsider diameter [mm] 121 length including starter [mm] 315±1 engine weight (without battery) [kg] range of operating speed [rpm] 35 0...

  • Page 8

    Pp-42a 8 2.1.3 connection of engine with control electronic see picture at clause 3.5 2.1.4 accessories of this engine which is delivery separately: - fuel filter fuel input to hose js 4 fuel output to hose js 4 - engine data terminal - hose d6,5 0,4 m - engine clamp optional accessories - suction s...

  • Page 9

    Pp-42a 9 caution! The battery must be disconnected from the model during charging. Attention! Fire hazard! Li-pol type batteries can explode if charging parameters are set incorrectly. Always observe the instructions provided by the manufacturer of the charger. When charging, the batteries must be u...

  • Page 10

    Pp-42a 10 attention! Fire hazard! Observe all applicable regulations for the transport and storage of fuels (kerosene /jet fuel /etc.). Don't use open fire when mixing fuels with oil or handling the fuels (refuelling, draining, etc.). Ensure that the fuel does not spill or leak into the soil. 3.4 st...

  • Page 11

    Pp-42a 11 3.5 connection scheme input signal of rc control orange input for rc signal from the control red auxiliary power +4,8 vdc for rc control brown gnd engine data terminal edt switch pc connector service hose ø 6,5/ø 4 hose ø 6,5 ø 4 battery 12v 2500 mah filler neck falling suction + - tank br...

  • Page 12

    Pp-42a 12 engine data terminÁl battery fuel tank fuel filter connector or switch connector pc engine throttle e.

  • Page 13

    Pp-42a 13 3.6 recommended accessories 3.6.1 suction screen the engine can be provided with a suction screen to prevent suction of foreign objects into the compressor. Put the suction screen on the engine starter in such way, so that the grooves on the screen fit onto the protrusions on the starter. ...

  • Page 14

    Pp-42a 14 4. Edt status display (engine data terminal) edt (engine data terminal) control and monitoring panel main display: e g t 9 9 9 ° c t h : 1 0 0 % r p m 1 2 0 . 0 u b 1 2 . 6 v in the space for rpm and egt indication, the display will show only physical engine speed and exhaust gas temperatu...

  • Page 15

    Pp-42a 15 menu a – control unit modes lock → setting upon battery switch-on and after cool mode (without rc signal) stop → setting upon battery switch on and after cool mode (rc signal set to stop) idle → rc signal set to idle (displayed in idle speed) th:100 % → rc signal set from 1 % to 100 % (eng...

  • Page 16

    Pp-42a 16 menu setup: egt999°c th:100% rpm120.0 ub12.6v 1: info >>> 2: statistics >>> 3: limits >>> 4: r/c-settings >>> 5: test-devices >>> 6: reset-engine >>>.

  • Page 17

    Pp-42a 17 menu - 1: info (only for reading) 10: r/c-fails number of rc connection fails during the last engine run 11: jet-engine engine type and serial number 12: firmware firmware version 13: life-time maximum time to the engine go 14: error-codes defects causing engine switch-off or lack of funct...

  • Page 18

    Pp-42a 18 rc fails loss of rc signal during engine run will set 45:fails-throttl speed for the 44:fails-time period and, after this period lapses, the engine switches off. Time failure to reach idle speed (idle) since the engine start beginning. If the engine fails to reach idle within 60 s after th...

  • Page 19

    Pp-42a 19 menu – 2: statistics (only for reading) 2: statistics >>> 20: runs-total 0 21: start-abort 0 22: runs-abort 0 23: hour-meter 000:00´0 24: egt-avg/peak 0°c/0°c 25: fuelpmp-min 0 mv/ 0 mv 26: fuelpmp-max 0 mv/ 0 mv 27: rpm-min/max 0 / 0

  • Page 20

    Pp-42a 20 20: runs-total total number of engine starts and runs 21: start-abort total number of engine failed starts 22: runs-abort total number of engine failed runs 23: hour-meter total hours worked by the engine (total time of the fuel pump operation) units – hh.Mm‘ss 24: egt-avg/peak average and...

  • Page 21

    Pp-42a 21 menu - 3: limits (for reading and setting) 3: limits >>> 30: engine-idle 35000rpm 31: engine n100% 120000rpm 32: fuelpmp-max 9.6v 33: up 4,0s 34: down 4.0s 37: run-egt-off 900°c 35: egt-max 880°c 36: start-egt-off 950°c.

  • Page 22

    Pp-42a 22 30: engine-idle engine idle speed. Setting range from 33,000 to 40,000 rpm in 100 rpm steps. 35,000 rpm by default 31: engine n100 % maximum reduced engine speed. Setting range from 100,000 to 120,000 in 100 rpm steps. The maximum speed can be lowered or raised by the engine manufacturer, ...

  • Page 23

    Pp-42a 23 menu - 4: r/c settings (for reading and setting) 4: r/c settings >>> 40: rc-monitor 0us 41: rc-trim.Off 900us 42: rc-idle 1000us 43: rc-100% 2000us 44: fails-time 5.0s 46: throttle-type thrust 47: control-type rc 45: fails-throttl 0%.

  • Page 24

    Pp-42a 24 40: r/c-monitor current value of rc signal 41: rc-trim.Off rc signal value for stop. Push the set push-button (the > and rc transmitter signal for stop and confirm it by the set push-button (the > and flashing and it is entered in the engine memory). 0.90 ms by default 42: rc-idle rc signa...

  • Page 25

    Pp-42a 25 Меnu - 5: test-devices (for controlling engine devices only) 50: starter off starter test. The starter is spun to a defined speed and then switched off. 51: fuelpump fuel pump test. The fuel pump is spun to a defined speed and then switched off. Both fuel valves are closed. 52: fuelvalve m...

  • Page 26

    Pp-42a 26 procedure of engine actuating by edt: 1) set 56: engine-run in edt menu. 2) press the push-button and the off inscription will start flashing in the display. 3) set on using the or push-button and confirm it by the push-button. 4) the edt display will indicate "edt st?" in the top right co...

  • Page 27

    Pp-42a 27 schema menu: egt999°c th:100% rpm120.0 ub12.6v 1: info >>> 2: statistics >>> 3: limits >>> 6: reset-engine >>> 5: test-devices >>> 4: r/c settings >>> 31: engine n100% 120000rpm 32: fuelpmp-max 9.6v 33: up 4.0s 34: down 4.0s 30: engine-idle 35000rpm 35: egt-max 880°c 36:start-egt-off 950°c...

  • Page 28

    Pp-42a 28 5. Maintenance of engine 5.1 check-up of rotating parts the control consist in periodic visual check of compressor wheel and turbine before flight. You must check impellers blading. Following manually check or free rotor rotating. 5.2 state of fuel filter pollution you must visual check st...

  • Page 29

    Pp-42a 29 7. Exhaust pipe for the tj20a turbojet engine the manufacturer of the tj20a engine recommends to use an exhaust pipe with the engine, to protect the model against damage caused by the high temperature of the engine output nozzle. The exhaust pipe must be designed in accordance with the fol...

  • Page 30

    Pp-42a 30 8. Turbojet engine tj20a dimensional drawing.