Nutating Disc Engine - Operation

Operation

In its basic configuration the core of the engine is a nutating non-rotating disc, with the center of its hub mounted in the middle of a Z-shaped shaft. The two ends of the shaft rotate, while the disc "nutates", (performs a wobbling motion without rotating around its axis). The motion of the disc circumference prescribes a portion of a sphere. A portion of the area of the disc is used for intake and compression, a portion is used to seal against a center casing, and the remaining portion is used for expansion and exhaust. The compressed air is admitted to an external accumulator, and then into an external combustion chamber before it is admitted to the power side of the disc. The external combustion chamber enables the engine to use diesel fuel in small engine sizes, giving it unique capabilities for unmanned aerial vehicle propulsion and other applications. One significant benefit of the nutating engine is the overlap of the power strokes.

Power is transmitted directly to the output shaft, (the crankshaft), completely eliminating the need for complicated linkages essential in a conventional piston engine (to convert the piston's linear motion to rotating output motion). Since the disc does not rotate, the seal velocities are lower than in an equivalent IC piston engine. The total seal length is rather long, however, which may negate this advantage.

The disc wobbles inside a housing and, in its simplest version, half of the single disc (one lobe) performs the intake/compression function while the other lobe performs the power/exhaust function. The disc lobes can be configured to have equal compression and expansion volumes, or to have the compression volume greater than or less than the expansion volume. This means that the engine can be self supercharged (see supercharger), or operate as a Miller cycle / Atkinson cycle.

Read more about this topic:  Nutating Disc Engine

Famous quotes containing the word operation:

    It is critical vision alone which can mitigate the unimpeded operation of the automatic.
    Marshall McLuhan (1911–1980)

    You may read any quantity of books, and you may almost as ignorant as you were at starting, if you don’t have, at the back of your minds, the change for words in definite images which can only be acquired through the operation of your observing faculties on the phenomena of nature.
    Thomas Henry Huxley (1825–95)

    It requires a surgical operation to get a joke well into a Scotch understanding. The only idea of wit, or rather that inferior variety of the electric talent which prevails occasionally in the North, and which, under the name of “Wut,” is so infinitely distressing to people of good taste, is laughing immoderately at stated intervals.
    Sydney Smith (1771–1845)