Mechanical Cylinder Lubricators; Piping And Instrumentation For A Mechanical Cylinder Lubricator; Load Change Dependent Mechanical Lubricator - Man B&W L35MC6-TII Project Manual

MAN B&W

Mechanical Cylinder Lubricators

Mechanical cylinder lubricator(s), can be mounted
on the fore end of the engine, the size of which will
decide the number of lubricators needed. If driven
by the engine in sync with the crankshaft move-
ment, the lubricators could deliver timed injection
of the cylinder lubrication oil.
The lubricator(s) should have a built-in capability
for adjustment of the oil quantity and be provided
with a sight glass for each lubricating point.
The lubricators should be fitted with:
• Electric heating coils
• Low flow and low level alarms.
In the 'Engine Speed Dependent' design, the lu-
bricator pumps a fixed amount of oil to the cylin-
ders for each engine revolution.
The letters refer to list of 'Counterflanges'
The piping is delivered with and fitted onto the engine
Fig 9.03.01: Piping and instrumentation for a mechani-
cal cylinder lubricator
MAN B&W L35MC6
5-6 cylinder engines: 1 Lubricator
7-9 cylinder engines: 2 Lubricators
178 57 743.0
MAN Diesel
Mainly for plants with controllable pitch propeller,
the lubricators could, alternatively, be fitted with a
mechanical lubrication system which controls the
dosage in proportion to the Mean Effective Pres-
sure (MEP).
An 'Engine Speed Dependent' as well as a 'MEP
Dependent' mechanical lubricator could be
equipped with a 'Load Change Dependent' sys-
tem, by which the cylinder feed oil rate is auto-
matically increased during starting, manoeuvring
and, preferably, during sudden load changes, see
Fig. 9.03.02.
In that case, the signal for the 'Load Change De-
pendent' system comes from the electronic gov-
ernor.
Fig 9.03.02: Load change dependent mechanical lubri-
cator
9.03
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178 59 504.0
198 59 69-2.0