m_e_control_sys b&w
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MAIN ENGINE PNEUMATI
V.I.T. 253
Actuator 711 G F
P1
2 52
1 For elect.Gov.
128 PS58
Fuel pump 2 Alarm S.P. 0
12 11 Em'cy shut d
G 253
stop max. F
Elect.Gov. FO Cut 2
Actuator PS60 F 3
G V5
51 268 42 Em'cy
298 253 127 Shut down
G 734
49 F 2
1 x 3
40 Plugged
48 281 Set.point
294 V12 2 3 1 S9 40 1sec. (plan)
set.o.5 Mpa
RemoteB A
P A "P" R1 A B
295 A
Control S6 Emergency P1
icator 53 Cont.position 106 41 z
727 Out1 Out2 for emergency 253 Emergency Panel 33 32 Set.Point
V 20 296 S.P. 0.3Mpa 66 1sec.(plan)
PS 50 Gin Remote Stop Ahead
Emergency F 65 66 Astern 23 31
P1 A
Set.point 29
100 6sec. A
728 Start p 55
B A B 53
1 P A P1 A 67
B 30
Cont.Position
for Remout
101 102 103 104 105 S.P. 0.2 Mpa A A A
Emergency ConsolePS67 V1 V2 V3
24 P1 Stop Ahead P1 Astern P1
ECB
Control Engine Maneuv. Control Gov. 83 84 86
Position Telegraph Handle Unit Unit
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Speed Signal DESCRIPTION
to Governor
1 Ball Valve
For manual cutting-off control air supply.
2 Pressure switch
For low pressure alarm if the control air su
W/H 3 Ball Valve
Eng. Stop For manual cutting-off of air to exhaust val
Telegraph Start 6 Pressure gauge
Ahead Indicates control air supply pressure.
Astern 7 Magnetic switch
Activated when reversing cylinder (13) is i8 Magnetic switch
Activated when reversing cylinder (13) is i
9 Ball Valve
Pneumatic Signal For manual blocking of air supply to air cyli
Electric Signal 10 Two-position,Three-way valve
Remarks Leads air to reversing cylinders(13) and (5
The Dawing shows the System 11 Two-position,Three-way valve
in following conditions: Leads air to reversing cylinders(13) and (5
1) Stop and ahead position 13 Air cylinder
2) Control Room control Reversing the roller for the fuel pump to A
3) Pneumatic Pressure on 16 Ball Valve
4) El Power on For manual cutting-off safety air supply.5) Main startingn Valve in service 17 Pressure switch
For alarm if safety air suuply pressure is to
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ONTROL SYSTEMSafety relife Valve
Set.Point 2.1Mpa.
137
av.air 121r 118 Blocked S4
Maine starting 120 301
Valve Service S3 302
Exhaustr Valve
Open125 59
26 Open Close1 251 19 16
Starting Air 12 G
Distributor 2 58 G 60
F F Safety Air
126 1 4 2 27 277 Supply 0.7Mpa
2 PS54 17 Clean and dry Air
12 14 Alarm safety Air
117 1 Set. Point 0.56Mpa
Starting
Valve 7 8
REVERSING AH. AS.MECHANISM S7 S8 136
13 F PS10
Alarm
9 G Set.Point
251 0.56Mpa.
138
54 57
310 Starting Air Distributor G
292
12 2 52 735 736 Z F
11 R2 277
1 2 AH A
S77 S88 2 89 P2 Z 70
12 1 293 Spring Air
AS R2 A 6 Supply 0.7Mpa
P2 Clean and dry Air
251 1
A G
276 2 F G 50
P1 1 1 51 F
20 Control Air
1 115 21 2 Supply 0.7Mpa
Turning Gear PS52 Clean and dry Air
Alarm Control Air supply
0 S15 Engaged Set.Point 0.56Mpa
S27
270 116
Fly Wheel PANEL 1
20 L
40L
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20 Air receiver 40L
Reduces time lags in the maneuvering system.
21 Drain valveFor draining off water from the maneuvering system.
essure is too low 23, 29,30,31,32,103,128 Double non-return valve
26 Two-position,Three-way valve
Prevents air inlet to starting air distributor in case of leaking main starting valve
27 Two-position,five-way valve
Controls the main starting valve (open or close)
32 Throttle non-return valve
AD position. Delays venting of the poilt signal to valves (26),(27),(292) and (293).The delay is adjustable. The purpose of this delay is to ensure that the valve(32).
RN position. Delay the timing of starting-air cut-off and extend the period of starting-air supply when changing
to fuel oil-run from starting-air cut-off at the starting of engine.
3). This ensures a good start of the engine. Delay about 1 second.
33 Two-position,Three-way valve
eversing to AHEAD position. Leads pilot signal to valves(26),(27),(292) and (293) when turning gear is disengaged.
40 Two-position,Three-way solenoid valve
eversing to ASTERN position Leads the pre-set pilot signal to (52) during ASTERN running.
41 Switch
or ASTERN,respectively. Give signal to maneuvering system when the change-over mechanism is in remote control mode.
42 Elect. Governor actuator
Controls the amount of fuel injected.48 Switch
Reset shut-down function(in safety system) when regulating handle is in STOP position during E/S emergency control.
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49 Throttle non-return valve
Controls the time delay of the pilot signal to actuator (52).
51 Pressure gauge
Indicates the control pressure to actuator (52).
52 Actuator
Adjust the fuel injection lead.
53 Regulating valve
Supplies control pressure to actuator (52).
57 Air cylinder
Reverses the starting air distributor from AHEAD toASTERN and vice versa.
83 Pressure switch
Control position for remote. Set point 0.3 Mpa.84 Two-position,Three-way solenoid valve
Gives air signal when STOP is ordered during bridge control.
86 Two-position,Three-way solenoid valve
Gives pilot signal to valve (10) when AHEAD is ordered during bridge control.
88 Two-position,Three-way solenoid valve
Gives pilot signal to valve (11) when ASTERN is ordered during bridge control.
90 Two-position,Three-way solenoid valve
Leads pilot signal to valve (33) when START is ordered during bridge control
100 Two-position,five-way valve
Leads air to the emergency control system or to the remote control system, respectively.
101 Two-position,Three-way valve, hand operated
Leads pilot signal to valve (33),(102) and (117) and supply air to valve (105) when actuatedduring E/S emergency control.
Gives combined START and STOP signal when actuated during E/S emergency control.
102 Two-position,Three-way valve, hand operated
Leads pilot signal to valve (117) and supply air to valve (105) when actuated during E/S emergency control.
104 Throttle non-return valve
Keeps the AHEAD or ASTERN signal actuated for about 6 seconds after START during E/S emergency control.
105 Two-position,five-way valve, hand operated
Leads pilot signal to valves(10) or (11), corresponding to order (AHEAD) or (ASTERN), when reversing
during E/S emergency control.
106 Pressure switch
Gives signal to maneuvering system when Engine is in E/S emergency control.
115 Two-position,Three-way valveBlocks the start possibility when the turning gear is engaged.
116 Switch
Gives signal to lamp on main control console if turning gear is disengaged.
117 Two-position,Three-way valve
Activates the starting air distributor when STOP signal is received.
118 Shut-off valve
For manual cutting-off of air to starting air distributor.
120 Switch
Gives signal to lamp on main control console when main starting valve is in service position.
121 Switch
Gives signal to lamp on main control console to indicate when main starting valve is blocked.
125 Air receiver 20L
Reduces time lags in the safety system.
126 Drain valve
For draining off water from the safety system.
127 Two-position,Three-way solenoid valve
Activates puncture valve on fuel pumps when shut-down signal is given (from safety system).
136 Pressure gauge
Indicates spring air supply pressure.
137 Non-return valve
Prevents back-flow of spring air from exhaust valve.
138 Pressure switch
For alarm if air spring supply pressure is too low.Alarm point 0.55Mpa.
251,253 Test cock.
267 Pressure switch
For alarm when shut-down funtion works.Set point 0.3Mpa.
268 Root cock
270 Switch
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Gives signal to lamp on main control console if turning gear is engaged.
6,277,302 Line filter
281 Throttle non-return valve
Delays ventimg of the pilot signal to valve (117). The delay is adjustable.
9,295,296 Flexiable air hose
292,293 Two-position,Three-way valve
Prevents reversing of starting air distributor when starting air is supplied.
294 Reduces valve witw pressure gauge
Regulates the pre-set pilot signal to (52) during ASTERN running.
298 Pressure switch
Gives signal in to remote control system when STOP signal air is received.
301 OrificeFor sialing air of exhaust valve.
711 Pressure transmitter
Give the scavenging air pressure signal to elect. Governor.
727 Two-position,five-way valve
Controls air to actuators on cylinder lubricators in accordance with load change of the engine
728 Ball valve
For manual cutting-off of cylinder lubricator control air supply.
734 Quick release valve
Quickly release STOP signal air.
Switch
Give signal to remote control system when starting air distributor is at AHEAD.
736 SwitchGive signal to remote control system when starting air distributor is at ASTERN.
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