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Marinediesels - Co.uk - Members Section Starting and Reversing MAN B&W Air Start Distributor

The document discusses the radial air start distributor used on larger MAN B&W MC engines. The distributor is operated by two cams on the end of the camshaft and contains pilot valves arranged radially in a housing. The pilot valves are pushed by either the inner or outer cam profile to start the engine ahead or astern, and a spring holds them clear of both profiles when not in use to reduce wear. The distributor is mounted on each end of the camshaft to operate the cylinders.

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137 views1 page

Marinediesels - Co.uk - Members Section Starting and Reversing MAN B&W Air Start Distributor

The document discusses the radial air start distributor used on larger MAN B&W MC engines. The distributor is operated by two cams on the end of the camshaft and contains pilot valves arranged radially in a housing. The pilot valves are pushed by either the inner or outer cam profile to start the engine ahead or astern, and a spring holds them clear of both profiles when not in use to reduce wear. The distributor is mounted on each end of the camshaft to operate the cylinders.

Uploaded by

Arun S
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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The MAN B&W radial air start distributor http://www.marinediesels.co.uk/members/starting_&_reversing/MAN...

marinediesels.co.uk - Members Section


Starting and Reversing
MAN B&W Air Start Distributor

Other Pages The Basics The 2 Stroke Engine The 4 Stroke Engine Operation Members

The larger MC engines use a radial air start distributor operated by


two cams fixed on the end of the camshaft. The pilot valves,
arranged radially in a housing, are either pushed by the pilot air
onto the inner cam profile when starting ahead, or onto the outer
profile when starting astern. When not in use, a spring holds the
pilot valve follower clear of both profiles, thus reducing wear.

For a more detailed explanation of how the pilot valves work,


CLICK HERE
Photo shows distributor mounted on end of camshaft. This
is for a 12 cylinder engine, there is another distributor at
the other end of the camshaft for the other 6 cylinders. No
cover was removed to take this picture; There is actually a
perspex window, so you can see the distributor!

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