All About Engines
Forfatter: Edward Cressy
År: 1918
Forlag: Cassell and Company, LTD
Sted: London, New York, Toronto and Melbourne
Sider: 352
UDK: 621 1
With a coloured Frontispiece, and 182 halftone Illustrations and Diagrams.
Søgning i bogen
Den bedste måde at søge i bogen er ved at downloade PDF'en og søge i den.
Derved får du fremhævet ordene visuelt direkte på billedet af siden.
Digitaliseret bog
Bogens tekst er maskinlæst, så der kan være en del fejl og mangler.
All About Engines
A simple form of feed pump is shown in Fig. 55.
The piston or ram is a solid rod driven by an eccentric
and connecting rod. The suction valves
by which the water enters, and the de-
livery valve by which it leaves, the
pump are clearly indicated. A pump
of this kind
would gener-
ally be fixed
on the boiler,
and the water
would enter
through a
non-return or
“clack” valve,
close to the boiler side.
An independent feed
pump, made by Hall, of
Peterborough, is illustrated
in Fig. 56. The steam
cylinder A is at the upper
end, the pump b at the
lower, both piston rods being
in the same straight line and
connected together,
mission of
cylinder is
two valves.
One of
pulse valve c, is worked by levers D from the piston
rod, and regulates the flow of steam to the main
100
Fig. 55.—Simple
feed pump
steam to
controlled
these, the
Ad-
the
by
im-
Steam
Water
Fig. 56.—Hall feed pump