Patent GB-453908-A (GB)
Title: Improvements in and connected with rotary pumps engines and the like, and power transmission means embodying same
IPC: F04C14/22
Filed: 1935-09-16
Abstract: 453,908. Rotary engines; stuffing- boxes. MOORE, R. J. F., 30, Carlisle Crescent, Oakleigh, Victoria, Australia. Sept. 16, 1935, No. 25629. Convention date, Sept. 15, 1934. [Classes 110 (ii) and 122 (v)] [See also Group XXXIV] A rotary engine or pump has a rotor 27 provided with hinged vanes 28 pressed on to the bore of a cylinder 10 by fluid and spring pressure, with co-operating sealing surfaces 33, 34, on the vanes and rotor which are concentric with the pivot pins 31. In one form the cylinder 10 is adjustable to vary the eccentricity of the rotor from one side of the central position, to the other, to secure reversal of flow of fluid through the working chambers. This may be secured by means of a spindle 39 having an eccentric pin 37 engaging a slot 38 in the cylinder 10. The thickness of the latter may be increased in the neighbourhood of the inlet and outlet ports 14. The rotor may have a freedom to rock slightly on its shaft, to automatically align itself with the end plates. The fluid pressures inside and outside the cylinder 10 are approximately the same. Slots 42 allow fluid to pass from spaces 13 as each space closes. The device may be used as a power transmission with 23 as the power shaft and the casing 18 being connected with a driven shaft. A valve 43 controls the quantity of fluid passing from the outlet to the inlet of the pump, and thus the rotative speed of the casing 18. A grooved ring 24<1> on the shaft throws any leakage fluid outwards, and the latter is drained away through a hole 26. In a modified arrangement, Figs. 6, 7, two or more, pumps or engines are arranged side by side on the same shaft 23, with their vanes displaced angularly to secure a smooth fluid flow from a common inlet to a common delivery port. Dowel pins 44 couple the two cylinders 10 together. The ports 14 are disposed obliquely to secure uniform wear of the blade surfaces. The vanes 28 are arranged in pairs so that the engine may be given in both directions. Passages 47 allow fluid trapped in spaces 32 to pass to the suction side of a pump. For sealing the shaft, a resilient disc 52 is formed integrally with a sleeve 51, clamped to the shaft 23, and fluid pressure on the disc presses the turned edge against a cover plate 53. In a power transmission arrangement a pump as shown in Figs. 6, 7, may supply a rotary motor attached to one or more wheels of a road vehicle. In one form of engine having its cylinder 10 fixed, the casing bore comprises two arcs of circles of different radii, connected by curved surfaces which pass over the inlet and outlet ports. The pivoted vanes do not undergo angular movement while passing from one port to the other. Fig. 11 shows the invention applied to a shock absorber. A byepass passage 55 is fitted with a valve 56 to control the quantity of fluid passing from the working chamber. The rotor may move freely in one direction with the vane 28 pressed inwards. In a further modification the rotor may be in the form of a ring having the vanes pivoted to the inner periphery, the arcuate portion at the free ends extending through slots in the ring to bear against the cylinder surface.