IL169917A - Rotary radial internal combustion piston engine - Google Patents

Description

ROTARY RADIAL INTERNAL COMBUSTION PISTON ENGINE DESCRIPTION BACKGROUND AND FIELD OF INVENTION The present invention relates to the machinebuilding and can be applied in the form of an internal combustion engine, a gas engine, a hydraulic motor, a gas compressor and a hydraulic pump. 1. The Rotary Cylinder Machine is the object of invention US 5,720,241. It designed as a two-cycle internal combustion engine or as a compressor, includes in a housing, a cylinder rotor that rotates about a first axis of rotation and has three pairs of cylinders, the cylinders of each pair being coaxial and on opposite sides of the first axis of rotation and the pairs being spaced apart circumferentially by 120 DEG . The radially outer ends of the cylinders are closed by cylinder covers. Three pairs of pistons, rigidly connected together by piston rods, are carried on a crankshaft that is rotatable about a second axis of rotation that is parallel to and eccentric to the first axis of rotation. The piston rods are seated on three eccentric disks, likewise displaced 120 DEG with respect to one another, on the crankshaft. 2. The Rotary Internal Combustion Engine is the object of invention US 4,010,719. The engine comprise a cylindrical housing with end walls, a rotating cylinder block therein having seals mounted on the outer arcuate surface of the rotating cylindrical block as well as the end surfaces thereof to provide a tight seal with the inner walls of the housing. A plurality of radially extending cylinders are provided in the rotating block, each including a piston. Connecting rods are eccentrically mounted on a single throw or single connecting pin of a crank shaft. The cylinders are offset about one-half inch axially of the crank shaft so that they reciprocate in substantially the same plane. Different sun gear arrangements are provided to enable rotation of the rotating block either in the same direction or in an opposite direction relative to the crank shaft to obtain different ratios and different numbers of power strokes per revolution of the cylindrical bloc.

Both above engines operate according to the Otto cycle and comprise a "cylinder-piston" unit which is supplied to provide fuel burning to obtain the heat and to transform it into piston mechanical linear movement (reciprocation) within cylinder and a "crankshaft" unit which is supplied to convert reciprocation of the piston into rotation of the driven shaft. Those signs are essential signs of a conventional internal combustion crankshaft engine and so both above engines are the modifications of a conventional internal combustion crankshaft engine and they have all its essential disadvantages.. 3. The Radial Piston Engine is the object of invention US 4,192,221. It operates in a circuit according to the Brayton cycle. It can be applied in the form of an rotary engine and a gas compressor but it has been so designed that can not be applied in the form of an four (two) cycle rotary internal combustion engine which operates according Otto cycle. 4. The Rotor Piston Engine is the object of invention RU 2,088,762. It comprises a housing, a rotor having a driven shaft fastened thereon, which is mounted on the bearings spaced coaxially apart in the opposite sides of the housing and rotates about its axis of rotation and has a pair of radially opposite cylinders spaced in the holes of the body of the rotor eccentrically and equidistantly relative to its axis of rotation. One radially outer end of each cylinder is closed by the wall and the other end is closed by piston which slides within the cylinder. There are three pairs of rolls. The rolls of each pair being coaxial and are displaced on the opposite sides of the housing apart and circumferentially by 120 DEG. There is a rotary ring displaced between three pairs of the rolls. It rotates about its axis of rotation which parallel to the axis of the rotor and spaced apart from it by an eccentricity. The pivot pins are mounted on the rotary ring and the connecting rods are pivoted in the pistons and are pivoted on above pivot pins. The gear arrangements provide to enable rotation of the rotary ring in the same direction and with the same angular velocity relative to the rotor. Gas intake and gas exhaust may take place through the ducts in the body of the rotor extending from the cylinders to the inner pipe ports of the driven shaft.

In general operation of the engine, while the housing with three pairs of the rolls remains stationary the rotor with cylinders, pistons, connecting rods and the rotary ring rotate in the same direction and with the same angular velocity about the rotor and the rotory ring axes of rotation. The above axes are not coaxial and therefore the pistons and the cylinders slide with respect one to another. Both the cylinders and the pistons are impelled by gas under pressure. One way, the pressure acts through the pistons and connecting rods to the rotary ring and through the bearings of the rotary ring to the housing. Another way, it acts through the cylinders (the bottom walls of the cylinders), being eccentrical and equidistant relative to the axis of rotation of the rotor, to the driven shaft and so affords power.

Above engine operates according to the Otto cycle. It comprises a "cylinder-piston" unit being exactly the same as the conventional engine one and used exactly the same technology of obtaining the heat and transforming it into mechanical movement of the piston relative to the cylinder (or the cylinder relative to the piston). The rotor f the engine is impelled by gas under pressure and rotates about its axis without using "crankshaft" unit. But it has been so designed that in practice makes the manufacturing of this engine impossible or too difficult and produced motor don't practical: it is difficult to provide the needful precision of the rolls displacement by the technology of the manufacturing of the engine - the design has too weak structure - the real angular velocity of the rolls and of the gears of the synchronize device is too great for to be really possible to provide it by technology of the manufacturing.

SUMMARY OF THE INVENTION The aim of the present project is to provide a new design of an internal combustion rotor engine which has all advantages of the rotor engine but more efficient and has no problems of both the conventional internal combustion crankshaft engine and the internal combustion rotor engine such as Wankel one.

Rotary internal combustion engines are quite old in the art. There are variety of directions of improvements to overcome the disadvantages of a conventional crankshaft engine but it is the fact that its essential disadvantages impossible to overcome by modification of the conventional one.

The design of conventional internal combustion crankshaft engine comprises two basic components. The first component is a "cylinder-piston" unit and it is supplied to provide fuel burning, to obtain the heat and to transform it into mechanical piston movement (reciprocation) within cylinder. This component is highly effective. The second component of conventional engine is a "crankshaft" unit and it is supplied to convert reciprocation of the piston into rotation of the driven shaft. The efficiency of this component is less than 45% and that is one of the essential causes of low efficiency of conventional engine at all. In all the previous attempts to create a rotor engine without crankshaft to increase the efficiency, both basic units of conventional engine had been changed and those attempts were not successful.

So to create efficient and practical internal combustion engine its design must be: operating according to the Otto cycle rotary - same simple and more technological compared to the conventional crankshaft engine - far the most technological and of much greater reliability and work ability compared to Wankel one The present invention design operates according to the Otto cycle, comprises a "cylinder-piston" unit being exactly the same as the conventional engine one and used exactly the same technology of obtaining the heat and transforming it into mechanical movement of the piston relative to the cylinder (or the cylinder relative to the piston). At the same time both the piston and the cylinder are impelled by gas under pressure and rotate about two stationary and eccentrical axes correspondently and so affording power on the driven shaft without using "crankshaft" unit. The design of this novel engine is practical, simple and technological in the manufacturing.

SHORT DESCRIPTION OF DRAWINGS The invention would be described now with reference to the: Figs. 1,2 illustrate the construction of the engine and a manner in which it operates.

Fig. 3 is isometric view of engine.

Fig. 4 corresponds to Figs. 3 in greater detail.

DETAILED DESCRIPTION OF A EMBODIMENT Turning first to Figs. 1 - 2: New engine comprises a housing (1), a rotor (3) having a driven shaft (4) fastened thereon, which is mounted on the bearings (2) spaced coaxialiy apart in the opposite sides of the housing and rotates about its axis of rotation and has a pair radially opposite cylinders (7) spaced in the body of the rotor eccentrically and equidistantly relative to its axis of rotation. One radially outer end of each cylinder is closed by the wall and the other end is closed by piston (8) which slides within the cylinder. Gas intake and gas exhaust may take place through the ducts in the body of the rotor extending from the cylinders to the inner pipe port of the driven shaft. There is a rotary ring (5) mounted on the bearings (6) spaced coaxially apart in the opposite sides of the housing. It rotates about its axis of rotation spaced apart from the rotor axis by an eccentricity and being impelled to rotate in the same direction and with the same velocity relative to the rotor by pins of the rotor. The pistons are connected to the rotary ring through the connecting rods.

In general operation of the engine, while the housing remains stationary, the rotor with cylinders, pistons, connecting rods and the rotary ring rotate in the same direction and with the same velocity about the rotor and the rotory ring axes of rotation correspondently. The above axes are not coaxial and therefore both the piston and the cylinder slide with respect one to another. Both the cylinders and the pistons are impelled by gas under pressure. One way the pressure acts through the pistons and connecting rods to the rotary ring and through the bearings of the rotary ring to the housing. Another way it acts through the cylinders (the bottom walls of the cylinders) to the rotor and to the driven shaft being eccentrical relative to the axis of rotation of rotory ring and so affords power.

Claims (1)

1. CLAIMS A rotor machine comprises a housing, a rotor having a driven shaft fastened thereon, mounted on the bearings spaced coaxially apart in the opposite sides of the housing which rotates about its axis of rotation and has cylinders spaced radially in the body of the rotor, one radially outer end of each cylinder is closed by the wall and the other end is closed by the piston which slides within the cylinder and connected through the connecting rod to the rotary ring and it has the ducts for gas intake and gas exhaust extending from the cylinders to the inner pipe ports of the driven shaft, a rotary ring which is mounted on the bearings spaced coaxially apart in the opposite sides of the housing and rotates about its axis of rotation spaced apart from the rotor axis by an eccentricity and being impelled to rotate in the same direction and with the same velocity relative to the rotor by pins of the rotor.