Starting And Control Air Systems - Man B&W L35MC6-TII Project Manual

MAN B&W

Starting and Control Air Systems

The starting air of 30 bar is supplied by the start-
ing air compressors to the starting air receivers
and from these to the main engine inlet 'A'.
Through a reduction station, filtered compressed
air at 7 bar is supplied to the engine as:
• Control air for manoeuvring system and for ex-
haust valve air springs, through engine inlet 'B'
• Safety air for emergency stop, through inlet 'C'.
Through a reduction valve, compressed air is sup-
plied at 10 bar to 'AP' for turbocharger cleaning
(soft blast), and a minor volume used for the fuel
valve testing unit.
Reduction station
B C AP
Main
engine
The letters refer to list of 'Counterflanges'
*) Pipe a nominal dimension: DN65 mm
Fig. 13.01.01: Starting and control air systems
MAN B&W S35MC, S35MC-C, L35MC
Pipe, DN25 mm
Filter,
40 µm
Pipe, DN25 mm
A
Pipe a, DN *)
MAN Diesel
Please note that the air consumption for control
air, safety air, turbocharger cleaning and for fuel
valve testing unit are momentary requirements of
the consumers.
The components of the starting and control air
systems are further desribed in Section 13.02.
For information about a common starting air sys-
tem for main engines and MAN Diesel auxiliary
engines, please refer to our publication:
Uni-concept Auxiliary Systems for Two-Stroke Main
Engines and Four-Stroke Auxiliary Engines
The publication is available at www.mandiesel.com
under 'Quicklinks' → 'Technical Papers'
Reduction valve
Starting air
receiver 30 bar
PI
To
bilge
Oil & water
separator
Starting air
receiver 30 bar
PI
To bilge
13.01
Page 1 of 1
To fuel valve
testing unit
Air compressors
079 61 01-7.1.1
198 60 554.1