FlightGlobal.com
Home
Premium
Archive
Video
Images
Forum
Atlas
Blogs
Jobs
Shop
RSS
Email Newsletters
You are in:
Home
Aviation History
1914
1914 - 0271.PDF
100 H.P. BENZ AEROPLANE ENGINE.- -On the left, the engine viewed from the exhaust side; and on the right, view from the inlet side. is employed, the cylinders being copper jacketed, while circula tion is assisted by a pump. Two sparking plugs are fitted to each cylinder, and a special compression release device is provided so as to facilitate starting. Gnome Engine Co. (31.) ON this stand the new 100 h.p. Monosoupape Gnome and the 80 h.p. 7-cylinder Gnome will be exhibited. The former made its first public appearance at the Paris Aero Salon in December last, and differs from the usual construction embodied in the Gnome engines, in that the inlet valves, which are ordinarily located in the heads of the pistons, are dispensed with, and ports are formed in the inner end of the cylinder walls through which a rich mixture is •drawn from the crankcase, and by mixing with air entering via the exhaust valve (which remains open during induction) forms the ex plosive mixture in the manner described in FLIGHT for February 14th last. The weight of the engine together with that of fittings for a self-starter is 276 lbs., as compared with 298 lbs. for the 100 h.p. 9-cylinder Gnome cf the usual design. The Societe des Moteurs Gnome also manufacture a 7-cylinder 80 h.p. model of the " Mono soupape " type, and this engine is shown in the accompanying illustrations. Examples of the 80 h.p. motor will, however, be found at the Show fitted to the Avro Scout and the Bristol two-seater. The 80 h.p. engine will be on the usual lines followed in Gnome practice, which are so familiar to our readers as to require no further explanation. Green Engine Co., Ltd. (85.) THE engines shown on this stand, No. 85, will consist of the 60-70 h.p. model that proved so successful in the Patrick Alexander Competition, the latest 120 h.p. six-cylinder engine, one of which design was fitted to the Sopwith hydroplane in the Circuit of Britain Race last year, and a small dynamo set. It,is hardly necessary to dilate upon their excellent qualities, as they have proved themselves to be so thoroughly reliable and efficient for both land and sea service, and those improvements which have been more recently incorporated in the design are such as will be introduced into any machine by the natural process of evolution. These may be briefly summarised by saying that the crank-shaft has been stiffened—not because it was necessary, but so as to give greater rigidity to a part that has to work under exceptionally severe conditions ; the reciprocating parts have been lightened, thereby reducing vibration to a negligible quantity; and the air intake has been constructed so that the inlet orifices to this chamber come close up to the cylinder walls and cause the air to be drawn from around the uncooled portion of the cylinder walls, thus keeping these parts much cooler and assisting lubrication. The quantity of air passing in this manner can be regulated by a sleeve, any diminution in the air drawn through these ports being com pensated for by air entering through other ports. All these engines are fitted with fully forced systems of lubrication and have dual ignition for facilitating starting. CNOME ENGINES.—On the left is the 80 h.p. Monosoupape engine, and on the right, the ordinary 80 h.p. model. 271
Sign up to
Flight Digital Magazine
Flight Print Magazine
Airline Business Magazine
E-newsletters
RSS
Events
