Patent GB-1067889-A (GB)
Title: Rotary internal combustion engine
IPC: F01C1/344
Filed: 1965-10-26
Abstract: 1,067,889. Rotary-piston I. C. engines. P.R. MALLORY & CO. Inc. Oct.26, 1965 [Jan. 7, 1965], No.45224/65. Heading F1F. A rotary-piston I. C. engine of the radialvane type comprises an air-cooled cylindrical casing (11), Figs. 1, 3 and 4 (not shown), containing a piston or rotor (16) carrying a plurality of outwardly-sliding vanes (46) and pairs of sealing plates (22, 23, 22', 23', ) at either end, the outward radial-displacement of the vanes into contact with the casing by centrifugal action being prevented by a pair of rollers or bearings (56, 56') attached to each vane and engaging with surfaces (55) on an annular cam (54), which is rotatably mounted on a crank-pin (30) of a stationary vertical crank-shaft (29). The sealing plates are rotatably supported by bearings (43, 44) at either end of the crank-shaft and effect sealing of the rotor relative to end plates (112) for the casing (11). A power-output shaft (38) is attached to the sealing plate (22) and rotatably supported by a bearing (113) lodged in the lowerhoist plate (112). Sealing strips (51, 53) are situated in grooves in the periphery of each vane, and further sealing strips (66) are lodged in vertical grooves (67) formed in the rotor adjacent each vane. Combustion chambers or notches (110) are provided in the periphery of the rotor between adjacent vanes, passages (111) being formed between the trailing end of each notch and the peripheral surface of the rotor. Lubrication is effected by oil passing through passages (68) in the crank-shaft from a reservoir or pan (69), the oil being pressurized by a pump (95). In operation, fuel-air mixture produced by a blower (98) and a carburetter (26) enters spaces between the vanes (46) through a plurality of openings (27) in the casing (11), the compressed mixture being ignited by products of combustion travelling through a pair of slots (62), Fig.2 (not shown), in the casing adjacent a spark-plug (60), which is only employed to effect ignition when the engine is started. Products of combustion are ejected through a plurality of openings (65) in the casing (11) and an exhaust channel (64). Alternatively, the engine comprises a cylindrical casing (11'), Figs. 5 and 6 (not shown), containing a piston or rotor (16') carrying sealing plates (76, 78) at opposite ends and a plurality of sliding-rocking vanes (46'), the casing being cooled by fluid passing through a space (70) between an inlet (72) and an outlet (71). The radiallyinnermost ends of the vanes (46') are attached to arms (84) by pins (82), the arms being pivotally attached to a ring (85) by further pins (86) so that vanes cannot be brought into contact with the casing by centrifugal action. The ring (85) is rotatably mounted on the crank-pin (30') of a stationary vertical crank-shaft (29') carrying pairs of pinion gear-wheels (91), Fig. 7 (not shown), which mesh with gear-teeth (92) formed on the ring (85) and a gear-wheel (93) attached to the sealing plate (78) so as to synchronize the rotary motion of the ring (85) with that of the rotor. Sealing strips (53') are situated in grooves formed in the radially-outermost edges of the vanes and further sealing strips (45') are lodged in vertical grooves formed in the rotor adjacent each vane. A power-output shaft (38') is attached to the sealing plate (78) and contains oil passages (68'). In operation, fuel-air mixture generated by fan-blades or fins (77) on the sealing plate (76) and a carburetter (not shown in the drawings) enters spaces between the vanes through an orifice (81) in the casing (11'), air for said mixture being drawn through a filter (89). The compressed mixture is ignited by products of combustion passing along a pair of slots (62') formed in the inner surface of the casing (11') adjacent a spark-plug (60'), which is only employed to effect ignition when the engine is started. Products of combustion are ejected through an orifice (89), a further orifice (90) being situated in the casing between the orifices (81, 89) and connected to suction or vacuum means not shown in the drawing) to effect improved scavenging of spent combustion-products.