GB191022872A - Improvements in Rotary Engines. - Google Patents

Abstract

22,872. Crofton, W. B. Oct. 3. Fixed-abutment type; cooling parts; packing drums and vanes; working-fluid supply. - Relates to internal-combustion engines, and consists in an improved construction of engine with sliding-rocking vanes, in which separate compartments with separate rotors are employed for compression and firing, the rotors having a common shaft. The rotors 1, 2 are eccentrically housed in casings 3, 4 separated by a plate 5 containing grooves 34, 35 for split packing-rings 36, 37. The casings have extensions 3a, 4<a> for extensions 1<a>, 2<a> of the rotors, packing-rings 10, 16 being interposed. The casing 3 is hollow or water-jacketed, while the rotors are also hollow, the space 22 in the rotor 1 being connected by flexible pipes 30, 31 to a sleeve 24 rotating on a fixed member 23. Pipes 26, 27 lead to holes in the member 23 communicating with annular grooves 28, 29 in the member 24. One of the pipes serves as an inlet and the other as an outlet for cooling-water. The rotors, Fig. 3, have sliding rocking vanes 46 at rightangles to one another, being recessed to receive segmental pieces 47, against which are held spring-pressed packing plates 49. The casings are recessed between points 42, 43 to receive the rotor to form a large are of contact, and are provided with recesses 41 adapted to co-operate with grooves 38, 39 in the sides of the plate 5, connected bv a hole 40. The mixture is drawn in at an inlet in the casing 4, the previous charge being simultaneously compressed until the recess 41 connects through the groove 38, hole 40, and groove 39, with the other casing. The charge is ignited through a spark aperture 53 as soon as the passage is closed, and the products escape through an outlet 52. The casing is recessed at 54 to allow the gases to escape after the vane has passed the outlet.