The Steam Injector
A theoretical and practical treatise on the design and operation of injectors and on the flow of fluids through and the design of nozzles.
Forfatter: V. A. B. Hughes
År: 1912
Forlag: The Technical Publishing Company Limited
Sted: London
Sider: 145
UDK: 621.176
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EXHAUST STEAM INJECTORS.
105
Overflow Arrangements.—The remarks made under this
heading in connection with live-steam injectors apply also
to exhaust injectors.
The great clifficulty presented by exhaust steam is its
large volume per unit weight. The overflow aren must
therefore bc very large to permit a free escape of the jet
from the combining nozzle when the injector is starting,
Fio. 60.
but the provision of such a large overflow area must not be
at the expense of the continuity of the support provided
for the jet by the combining nozzle. It was not until
1880 that the problem of providing satisfactory arrange-
ments was solved, the result being the production of the
first automatic injector. The solution then provided lav
in dividing the combining nozzle longitudinally into two