Since
gas turbine engines
for automobiles have
a potential which
no doubt will soon
be realized, mention will
be made of the
lubricant requirements for
the drives. The oil will be used
to lubricate both bearings and gearing. The
bulk oil temperature will probably
be at least 300 degree F during operation, but the oil will
not be subjected
to hot combustion gases and thus
should remain comparatively clean.
Whether the oils
used will preferably be petroleum or
synthetic or blends of
the two is a
question. Whatever type, they will
no doubt contain various additives, such as antifoam
agents, oxidation inhibitors, metal deactivators, and antiwear agents.
Speculation as to
consumption and renewal
of such oils
indicates that the oil reservoir
will have a capacity
of about 3 quarts and that
the consumption will be almost
nil but that
an oil change
yearly can be expected.
