Patent GB-190800791-A (GB)
Title: Improvements in Rotary Motors.
Inventor: REUTER JOHN CARL
Filed: 1908-01-13
Granted: 1908-09-24
Abstract: 791. Reuter, J. C., and Harvey, A. Jan. 13. Movable-abutment type, with abutments sliding outwards. A rotary internal-combustion engine has a cylindrical piston 9, revolubly mounted upon a crank-pin 7, which runs upon the inner surface of a cylinder 2 and three sliding abutments 16, which k e e p in contact with the piston and divide the cylinder into three working chambers A, B, C. The chambers are provided with exhaust ports A3, B<3>, C<3> and admission ports for direct and reverse running A<1>, B<1>, C<1> and A<2>, B<2>, C<2>, respectively. The motive fluid is supplied from a combustion chamber 72 and is so controlled by valves 29, 30, 32 that, before the fresh working-fluid is admitted to any chamber, that chamber receives the exhaust gases from the one preceding it. The piston comprises an inner cylinder 10, separated from the crank-pin by roller bearings 12, and an outer cylinder 9 of the same length as the working chambers. Annular grooves 13 receive rollers 14 carried by side packing-plates 15 on the abutments 16. The working edge of each abutment is provided with an antifriction metal strip 19, which is pressed on to the piston by a spring 21. A face packing-plate is applied to the whole of one side of each abutment. The admission ports communicate by passages 31 with both valve chambers 27, 28. Relief passages 47, opening into exhaust passages 49, are provided in the abutment recesses. A reversing-valve 32 has three ports, which may register with either set of admission passages. Inside the valve 32 revolves a cut-off valve 29 having one long port 38. The valve 32 is moved for reversing by a reversing-lever 59, which is pivoted at 93 and is linked by a rod 62 and bell-crank lever 63 to a rocking spindle 66, having an arm 69 which engages between lugs 73 on the inside of the valve. The valve 29 has a long sleeve 50 slotted as at 54, and is united to the shaft for rotation by a sleeve 56, which is splined to the shaft and carries rollers 55 running in the slots 54. The sleeve 56 is movable axially by the reversing-lever 59 so that, on reversing, the valve 29 is given a suitable movement relative to the shaft to bring it into relationship with the ports of the valve 32. The exhaust is controlled by a hollow valve 30, the internal chamber being divided by a partition. Throughout the smaller part extend arcuate ports 46 to give direct communication between the exhaust ports and the chamber 28. In the larger part, there are two peripheral ports 42 and two ports in the inner wall of the valve drum. These are so placed that, when one port registers with an exhaust port, one peripheral port registers with the passage 31 connected to the inlet port of the next chamber. The valves 29. 30 are so arranged that, for a short time, at the commencement of a working stroke, the used gases from one chamber ar introduced to the next, and afterwards the fresh gases are introduced. The gases are supplied from the combustion chamber 72, which contains an electrically heated core, two spraying-nozzles 76 for supplying water and oil under pressure, and an air inlet 99 connected to a reservoir for compressed air. The plug carrying the core 73 carries the pivot of the reversing-lever. The spraying-nozzles 76, Fig. 9, are conical, and are fitted with an internal cone 78 for more effectively mixing the water and oil sprays. The oil and water supplies are controlled by simple valves, which are linked by rods 87 to the reversing - lever, so that for intermediate positions of that lever the supplies are decreased.