GB653185A - Improvements in or relating to rotary engines, pumps and the like - Google Patents

Abstract

653,185. Rotary engines and pumps. GOODYEAR, J. W. May 19, 1948, No. 13493. [Class 110(ii)] In an engine of the worm and worm-wheel type the rotor vane 25 is of gradually varying inclination relatively to the axis of the rotor 11 the rotor being curved longitudinally to conform to the peripheral curvature of the abutment disc 17, the rotor being of increased diameter towards at least one end. The cross-sectional area of the working space 24 may be constant or vary towards one or both ends to give compression or expansion of a fluid. One of two relatively moving parts such as 29 may be of rubber or the like, or lined therewith. Fig. 1 shows a pump with inlet port 21 and outlet port 23, though the pump may be reversed. The apparatus may act as an engine. Sealing members 30, 31 isolate the working chamber from the disc chamber 16. Fig. 4 shows a compressor in which fluid flows from an inlet 21 through a working chamber to an outlet 23. The rotor may be reversed and the apparatus used as an engine. The vane 25 meshes with slots 26 in a disc 17 and, the vane tip runs closely to the casing periphery 27. In Fig. 5 a vaned rotor 11 meshes with a disc 17 and working fluid enters an inlet 27, Fig. 1, is compressed and fuel infected at 39. The gases expand to drive the rotor and are exhausted through a duct 23 after flowing between turbine blades 49, 50 on the rotor and fixed guide blades 52. In addition, inlet moving blades 48 co-act with fixed blades 51. The rotor may carry more than one vane, and a rotor may co-act with two or more discs. An engine drive may be taken off the disc shaft. In a modification two axially-displaced discs of different diameters, Fig. 14 (not shown), mesh with vanes on one rotor to form an internalcombustion engine. Fig. 15 shows a further form in which the rotor 11 is shaped as an annulus with a convolute vane 25 which operates in a working chamber 38 and meshes with a slotted wheel 17. A cone 42, on the shaft 10, maintains the crosssectional area of the discharge channel 23 constant from the end of the rotor. A modified engine has two rotors axially spaced on the same shaft, each meshing with a slotted disc, fluid entering the rotors from the ends and being discharged through a common central outlet, this arrangement balances end thrust on the shaft. In a final example there are four rotors on two shafts with two discs between the shafts each meshing with two rotors arranged diametrically opposite each other. The fluid flows through the four rotors in series.