Radial engine

I want to introduct something about Geared Brushless Dc Motor. Products Features: 1)Number of Poles : 8 2)Number of phase: 3 3)Rated Voltage:24 VDC 4) Rated Speed: 2800RPM 5)Rated Torque:0.07N.m 6)Rated Power:20.5W 7)Rated Current:1.4A 8)Peak Current:4.2A 9)Line to line Resistance:2.98 Ohms 10)Line to line Inductance:3.50mHWe can make different types of this motor,OEM also is acceptable. quality and deliverytime can be assured. please contact with us for more informations Geared Brushless Dc Mot Radial engine in a cut-away viewRadial engine of a biplaneThe radial engine is a reciprocating type internal combustion engine configuration in which the cylinders point outward from a central crankshaft like the spokes on a wheel. This configuration was very commonly used in aircraft engines before being superseded by turboshaft and turbojet engines.In a radial engine the pistons are connected to the crankshaft with a master-and-articulating-rod assembly. One piston has a master rod with a direct attachment to the crankshaft. The remaining pistons pin their connecting rods attachments to rings around the edge of the master rod (see animation). Four-stroke radials almost always have an odd number of cylinders, so that a consistent every-other-piston firing order can be maintained, providing smooth running.The valve of the classic radials are overhead and move by a central cams plate ,pushrods and rocker arms, (like modern Harley motorcycle engines), but exists valveless (sleeve valve) radial engines built by Bristol before and during WW2 (from "Perseus" to "Centaurus" engines),later built under license by SNECMA after 1950, the "Hercules" engine for the Nord 2501 "Noratlas" (flew in the french air force up to 1989) .The Bristol radial sleeve valve engines are very reliable and prove high efficiency (low fuel consumption), but the oil consumption is high.Contents1 History 2 Radial versus inline debate 3 Multi-row radials 4 Modern radials 5 Diesel radials 6 See also 7 References 8 External links // HistoryA Continental radial engine, 1944Pratt & Whitney R-1340 radial engine mounted in Sikorsky H-19 helicopterCharles Manly constructed a water-cooled 5-cylinder radial engine in 1901, a conversion of one of Stephen Balzer's rotary engines, for Langley's Aerodrome aircraft. Manly's engine produced 52hp (39kW) at 950 rpm.In 1903-04 Jacob Ellehammer used his experience constructing motorcycles to build the world's first air-cooled radial engine, a 3-cylinder engine which he used as the basis for a more powerful 5-cylinder model in 1907, which he installed in his triplane that made a number of short free flight hops. During 1908-9, Ellehammer developed another engine, which had 6 cylinders arranged in two rows of three. His engines had a very good power-to-weight ratio, but his aircraft designs suffered from his lack of understanding of control. If he had concentrated on his engines, he might have become a successful manufacturer.Another early radial engine was the 3-cylinder Anzani, one of which powered Louis Bliot's Bliot XI in his 1910 crossing of the English Channel. By 1914 Anzani had developed their range, with their largest radial being a 20-cylinder engine of 200hp (150kW), with its cylinders arranged in four groups of five.The radial engine was not developed in Germany; two radial engines were made in Germany before World War I, but the Germans seemed to lose faith in the type under war conditions, or it may have been that insistence on standardisation ruled out any but proven engine types.During WW1, most of the French aircraft flew with Gnome Rhone rotary radial engines. The ultimate rotary produced 240hp.Radial versus inline debate1935 Monaco-Trossi, a rare example of automobile use.There was a debate about the merits of radial versus inline engines after World War I which continued throughout the 1930s, with both types seeing use. The radial was more popular largely due to its simplicity, and most navy air arms had dedicated themselves to it because of its improved reliability for over-water flights and better power/weight ratio for aircraft carrier takeoffs. Although inline engines offer smaller frontal area than radials, inline engines require the added weight and complexity of cooling systems and are generally more vulnerable to battle damage; damage to an inline engine could result in a loss of coolant and consequent engine seizure, while an air-cooled radial could take damage but continue to operate. A significant advantage of the air-cooled radial is that all cylinders receive equal cooling airflow.Another advantage is that by being flat, radial engines resulted in shorter aircraft with a smaller moment of inertia that were able to turn more tightly. This was especially important in fighter aircraft.Most radial-engined aircraft designed since the 1930s were also fitted with NACA cowlings to reduce drag and to also enhance forward thrust by virtue of its airfoil effect.The Wright company's J-5 Whirlwind radial engine of 1925 was billed as "the first truly reliable aircraft engine". Wright employed Giuseppe Mario Bellanca to design an aircraft to showcase it, and the result was the Wright-Bellanca 1, or WB-1, which was first flown in the latter part of that...(and so on) To get More information , you can visit some products about used truck engine, Water Pressure Reducer, . The Geared Brushless Dc Motor products should be show more here!