TURBINE REVOLUTION.

Dominion, Volume 1, Issue 52, 25 November 1907, Page 5

TURBINE REVOLUTION.

AND SINGLE -' engine. V : " .. :':

. Great as the advaivt'ago of tlio turbine system of propulsion uifdoubtedly-'is, additional turbines have to be fitted in order 'ftr enable a vessel to go'astern. As going astern is littlo moro. tlian in a vessel's voyage.compared with.the whole, transit,- the. supplementary, turbines ;aw necessarily 'idle (hiring.tho greater portion of the. time. .The great clcsidorJCtiinivis-'thua a 'tUrbino which combines within itself th.o* in either direction at tho'will of the'engineer.

Such a turbine has, Ji is claimed, been evolved by an Anstrn-iAmcrican engineer, .Ur. Charles. Otto- Doutschmann whojias, patented his invention. Mr.-'Dcutschmann claims tnat his-invention'cflttsist'on'bt only, hi'the application of the reversing principle, but such other improvements as make his turbine romarUnbly economical.' By tho adoption of an .adjustable power chest, he causes the turbine to be completely, steam, tight. He gains in power also' by , causing the steam to , press into.the,cavities..at r .right!angles to the motor or d'rupij-. thus! imparting-a-.straight blow; and he.makes the rotor m-one piece instead of in-the-.form of i''detachable tan's. A new and vital Jpature ,jnf. tho.'.invention is' the regulation ; ,ofv. the, ..setting, of,,the, pqwor chests in sxioh n'fashjon; as; to keep them in sufficiently close"tqucli with the.rotating nocly as to.be absolutely, steam,tight.,'..',, ! l ■

- The reversing Emotion is .obtained .by-, the use of a winged, yalve 'livvQfl'to-the., inside .-of the power, chesty and provided'with, n projection, which;' alternately closes-.one of the two high-prcssurb.istcam-inleti channels.: for marine, engines, r tlie. turbine-,consists of. a scries of. power, chest's|. .through which steam is expanded, these .chests lioing. of. increasing size, accordiiic/.tfl. the decreasing pressure ot tho steam.' The cnsihgs of the.,power, chests are connected;.; by I'nicans of flanges; on which bearings are arranged to suppor.t the. propeller .shaft. ./Each o.f, ii thc. 7 ,pp.wer. l phosts. is provided with a reversing valve, _ancK all are connected witlwa'lever, by..'.means" of,which the reversing apparatus/,is act;uated,sinniltaih cously in eaclVj-pbwer chest.. .The method •:( operation is simplicity itself, and tho inventor claims that the,,m,otioii of.tne/turVmo.Ran bo arrested and reversed with greater, enso .an J in a shorter period of timo tlian is the case with existing marine engines of-any,typo.. By an engenious adaption of his invention Mr. Dcutschmann claims that tho turbine engine, for use with either steam or gas-;—pre-iernhly the latter-ecan he,applied .to tho propulsion of motor cars,"the turbine of 16-h.p. to ' aO-li.p." being.; capable of..construction :n large numbers ,ritV.£3o an "engine. .' : '..'"' Only a week ago a now rotary engine invented by Jlr.-.Leo; of Kensington, Sydney, was described : in ftheso:colum'ns:...;lt : ' seems in certivin respects to be id.entic.il ..with Mr. Deutscliniann's motor, ; in-so far as it can reverse instantly, start instantly, and advance instantly,,!-,!.,.,;,- . .