RU2184262C2 - Rotary power plant - Google Patents

Abstract

FIELD: transport engineering; engines. SUBSTANCE: proposed power plant designed for use as vehicle drive is device providing direct conversion of heat energy into rotation. Rotary power plant consists of two pulsejet engines secured on one axle of rotation in the middle pipes. Exhaust pipes of pulsejet engines are placed in different directions of gas flow action on one diameter, their jet nozzles forming a pair of rotational forces. Combustion chamber are orientated along arc of movement with valves forward. EFFECT: improved economy and efficiency of process of conversion, provision of knocking combustion. 2 dwg

Description

 The invention relates to the field of engineering, in particular to engines for driving vehicles, power plants, etc.

 From the old textbooks, a pulsating engine is also known (its full name is a pulsating jet engine or PuVRD) (1), capable of operating on various types of fuel and, most importantly, without ignition. It is unpretentious in maintenance, since it is a simple pipe with a valve in the front. Such an engine has one big drawback - low efficiency, not exceeding 8-10%, which limited its use in technology. He worked on airplanes for translational movement, recently he was used in aircraft modeling and now flies on target airplanes for firing.

 There are many rotary engines for the direct conversion of thermal energy of chemical fuel into mechanical energy of rotational motion (2).

 Closest to the proposed invention is described in RU 2006642, IPC 5 F 02 K 11/00, 1994 (in the patent 4 l.) A rotary power plant, which is a device for converting thermal energy into mechanical rotational motion and consisting of at least of two pulsating jet engines mounted on one axis of rotation, having suction pipes located in opposite directions of their action, and the jet nozzles are deployed perpendicular to the radii of rotation and create a couple of forces. With all the advantages of direct energy conversion in such an installation, squeezing the fuel mixture due to brake by cams using simple friction negates the operation of the installation, since the heat from friction at a speed of about 4000-6000 (this is the speed of rotation of modern auto engines) becomes incredibly large, respectively sharply installation efficiency drops.

 A disadvantage of the known engines is not sufficiently high efficiency and efficiency.

 The problem to which the invention is directed, is to increase the efficiency and efficiency of the conversion process and achieve detonation combustion in pulsating engines through the use of centrifugal forces.

 The problem is solved due to the fact that in a rotary power plant, which is a device for the direct conversion of thermal energy of fuel into rotational motion and consisting of two pulsating engines mounted on one axis of rotation, with their jet nozzles forming a pair of rotational forces, to increase efficiency and efficiency of the conversion process and the achievement of detonation combustion in pulsating engines through the use of centrifugal forces, pulsating engines are stacked by exhaust pipes bam along one diameter in opposite directions of their gas flows with the axis of rotation in the middle of the pipes, and the combustion chambers are oriented along the arc of movement of the valves forward.

 Figure 1 shows a diagram of a pulsating motor.

 Figure 2 shows a diagram of a rotary power plant.

 The housing is divided into certain components of a pulsating engine, contains a valve device 1, a combustion chamber 2, an exhaust pipe 3, a jet nozzle 4 that creates a driving moment.

 The physics of the thermal process of a pulsating engine is based on the fact that, as in a conventional piston engine, the process of suction of the fuel mixture into the combustion chamber, its compression and even ignition is performed by a gas piston, which is a bunch of residual hot gas pulsating in the exhaust pipe. Due to this, the main jet stream of hot gas from the nozzle expires.

 The proposed rotary power plant is based on two pulsating engines. Both engines are stacked by exhaust pipes 3 along the same diameter in opposite directions of their action (jack) and are fixed on the same axis of rotation in the middle of the exhaust pipes 3, the combustion chambers 2 are located along the arc of the movement of the valves 1 forward, and the jet nozzles 4 are bent so that a couple of forces from their action formed a torque at the ends of the diameter.

With this arrangement of pulsating engines, after their start-up, the rotation speed begins to increase, and the inertia forces also increase. With a sufficiently fast rotation, a centrifugal force P = m • a acts on any volume of gas inside the engine, where m is the mass of a small volume, and = V ² / R is the acceleration, which depends on the speed V of the movement around the circumference of a given small volume in quadratic dependence, R - radius of rotation. If the radii from the axis of rotation of the two selected volumes are the same (say, in the exhaust pipe 3), respectively, the forces acting on them are balanced and the gas movement in the dense stream of the pipe does not have a noticeable effect. Another situation arises when hot gas almost exits the nozzle and creates a vacuum in the combustion chamber. Here, any gas cube will lose its mass, and the same cube at the end of the exhaust pipe will retain its mass (at the same distance from the axis), the centrifugal force is no longer balanced and makes the cube with a larger mass move more toward the jet nozzle (gas cannot exit the nozzle, because a full vacuum requires infinite energy), respectively, the vacuum in the combustion chamber will increase, then the hot "piston" of the remaining gas will hit the fresh fuel charge with greater force. It follows that the pressure force in the combustion chamber is proportional to the inertia forces. The increase in pressure is the increase in efficiency in general. The ceiling for increasing efficiency is still limited, even despite a further increase in rotation speed, the occurrence of detonation combustion. In conventional combustion in piston engine cylinders, the flame propagation velocity is 20–90 m / s, while in detonation combustion, this velocity increases stepwise to 1200–2000 m / s. Once the detonation combustion has arisen, it already lives its own life, independent of centrifugal forces. Therefore, the rotation can be stopped to zero, but the pulsating flow in the engines will still work, the cycles of suction, compression of the fuel mixture and ignition will occur regardless of whether the turbine rotates or stands still. Naturally, a torque proportional to the outflow of hot gases will be created on the rotor shaft.

 The use of pulsating engines in rotational motion in the form of a rotor allows you to use its inherent advantages and raise the car's efficiency to 35-40%. This also makes it possible to create a thermal power plant with one moving part (more precisely, a rotating one), which ensures long and trouble-free operation of a car, motorcycle, tractor and other transport equipment.

Literature
1. Borisav'evip M. "Motorovi a", t. 20, 7-8, p. 12, 13, 1978.

 2. Reynst F.X. "Pulsating Combustion" (Munchen NY) Munich, 1961.

Claims (1)

 A rotary power plant, which is a device for the direct conversion of thermal energy of fuel into rotational motion and consisting of two pulsating engines mounted on one axis of rotation, and their jet nozzles form a pair of rotational forces, characterized in that to increase the efficiency and efficiency of the conversion process and to achieve detonation combustion in pulsating engines through the use of centrifugal forces, pulsating engines are stacked by exhaust pipes along one diameter in prot vopolozhnyh directions of action of the gas streams with the axis of rotation of the middle pipe and the combustion chamber are oriented along the arc forward valves.

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