GB374632A - Improvements in or relating to rotary explosion motors - Google Patents

Abstract

374,632. Rotary engines. AGOSTON, A., 21, R÷kk SzilÓrd Ucca, Budapest. June 12, 1931, No. 17130. [Classes 110 (ii) and 110 (iii).] A geared-vane type of internal-combustion engine comprises discs I, II, each carrying piston vanes 1I .. 6I or 1II .. 6II, which cooperate with a rotary casing III containing inlet and outlet ports for the working-fluid, and ports for taking in and exhausting scavenging air. The engine, which has no valves operates on a six-stroke principle induction, compression, expansion, exhaust, induction and expulsion of scavenging air. Two sparking plugs #1, #2, are used to give twelve working strokes per revolution. The piston disc I is fixed to a shaft A and the disc II to a sleeve B. The :rotating members A, B, C, and the casing III are supported on ball bearings. The differential motion between the discs I, II is secured by circular and elliptical gear wheels as shown in Fig. 3. The uniformly rotating shaft drives a countershaft X through gears a, b with a 3 : 2 ratio, and through gears c, d of equal diameter, the shaft Y. The latter is connected to a countershaft z by two elliptical gears e, f which cause the shaft z to be twice accelerated and twice retarded per revolution of the shaft A. The sleeve B is driven by gears g, h with a 2 : 3 ratio. A gear j on the shaft X meshes with a wheel i fixed to the casing sleeve C, the ratio being 1:3 so that the casing travels at half the speed of the shaft A. The two portions of the casing containing the sparking plugs are designed to withstand explosion pressures and contain cooling means. The casing acts as a flywheel, but the two discs I, II are constructed of a light metal such as electron or aluminium. Working fluid is supplied by a carburetter 12 to inlet ports alpha1. through the annular space between the sleeves B, C. Scavenging takes place through ports #1, #1, the air or fuel leaving the latter port either to atmosphere or to a chamber where compression is about to take place, the latter being secured by a change-over valve operated by a rod 16. The exhaust ports gamma1 may be constructed as nozzles to direct products of combustion upon a blade ring t of a turbine wheel T. The gases then flow through an exhaust pipe 18, 19 to atmosphere. Gears k, l connect the turbine wheel to the shaft Y, the wheel T and casing III rotating in opposite directions. Plugs #1, #2 are supplied with current by an ignition device 20 through slip rings. Lubricating oil is supplied by centrifugal action and by a felt oiler ring. A ratchet mechanism s prevents reverse direction of rotation when starting up. The engine may be modified to operate on a two-stroke or fourstroke cycle.