CS214909B1 - Device for running and testing engine and compressor performance - Google Patents

Abstract

The invention solves the problem of using the energy generated during the warm start and performance test of one internal combustion engine for the cold start of the second internal combustion engine or compressor, as well as the problem of universality of use and use in field conditions. The stated purpose is achieved by connecting the first internal combustion engine through the first coupling with the pump and the second internal combustion engine through the coupling 1 with the hydraulic motor by shafts, with attached strain gauges. The pump and the hydraulic motor are connected by a hydraulic circuit with an integrated distributor, throttles and temperature and pressure control sensors, as well as sensor branches for determining the performance values, which are determined from the indication diagrams of the pump and the hydraulic motor. Increasing the universality is achieved by using hoses and flanges.

Description

2

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for testing the performance of torches and compressors, in particular piston-type piston engines, which utilize the heat generated by the running-in and the power test engine to cool the second engine or compressor. Run and test engines, sadosial compressors are performed on runners and brakes. The cold-running runners of the internal combustion engine are devices where a running engine is placed on top of the engine, which is connected by an AC motor coupling to the electric motor. A device is used where a cold running engine is driven by a DC electric motor with a device to change the turn. Advantageously, electric dynamo brakes are used, which can be used as both a generator and an electric. brakes equipped with alternators, etc. For other methods of running-in smaller engines, it uses lathes. Running the engine at a time when running the engine as a group is accomplished by burning the fuel in the working, combustion chamber and the engine is still performing in conjunction with the motors with absorption brakes, which in most cases convert the power of the engines into unused heat. In conjunction with electric brakes, the engine power is converted into electrical energy, which, however, also converts into the unnecessary heat dissipated into the air in the intermediate cycle frequency.

Said devices also have some drawbacks, for example, specialized workplaces must be stably located and cannot be used in various conditions, such as fields, and are rarely universal. They are large in size and costly for large power. When cold running, the energy requirement of the outside is always required. At the same time, the production facilities and the safety measures that concern mainly electrical equipment.

The essence of the measurement of the power as well as the regulation of these devices is that the measurement of the force on the specified arm, while the magnitude of the frictional force, is at the same time dependent on the torque and the reversing of the tested engine. but the opposite.

The aforementioned drawbacks are eliminated by a device for testing and testing of power motors and compressors, which consists in that it consists of a pump and a hydraulic motor, each of which is connected to the combustion engine via a coupling and a shaft with a strain gauge, while ducts for the working medium tank and outlet for the discharge pipe connected both through the first relief valve to the return pipe and to the second inlet valve, the first inlet of which is connected to the intake manifold and the first outlet to the return pipe, the second outlet of the manifold through a throttle connected either to an inlet to the hydraulic motor and to a second valve, the outlet of which is connected directly to the return line and secondly to the third throttle with the hydromotor outlet connected via the second relief valve to the return line. The essence of the solution is that a gearbox is provided between the pump and the first coupling and that the hydraulic motor distributors have their outputs provided with a pressure sensor and a temperature sensor.

The new and higher effect is achieved in the versatility of use, also by means of a unified flange, an intermediate piece, where a motor is possible and the pump mounted a crankcase, a cylinder cylinder block, a compressor crankcase or a gearbox.

After assembly, the engine or compressor can be moved to another location, using a hose. The operation can also be carried out in off-shore conditions, etc. They reduce the running-in dimensions of the running-in devices, as well as the high-power test engines, have lower investments, a smooth control of the load on the load, and easy adaptation to other applications.

It is also possible to use the energy generated by the heat-running-in of the engine with minimum load, as well as its maximum load, thereby reducing the energy requirement in the test.

In the accompanying drawings, there are shown two exemplary embodiments of a running and testing motor and compressor performance, wherein in FIG. 1, a device for testing without gears is shown, with a direct engine-to-pump drive, i.e. a warm run-in test of one The engine is used for cold start of the second engine or compressor run. FIG. 2 shows a device for running and testing the performance of internal combustion engines, wherein a gearbox is incorporated by an intermediate motor and a pump. The pump 5 (FIG. 1) is connected to the first combustion engine 1 via a first shaft coupling 4 with a glued strain gauge. The inlet to the pump S is connected to the working medium tank 18 by a suction pipe 9 into which a third temperature sensor 25 is connected. the pump 5 is connected to a discharge line 20 connected to a return line 8 via a first safety valve 7 and to a second inlet to the distributor 11. The first outlet of the distributor 11 only connected to the return line 8 and the second outlet from the distributor 11 is connected, on the one hand, the inlet of the hydraulic motor 6 through the connected first pressure unit 12, the first temperature sensor 13, through the first

Claims (3)

An apparatus for running in and testing the performance of engines and compressors, characterized in that it comprises a pump (5) and a hydraulic motor (6), each of which is connected to an internal combustion engine via a coupling (3, 4) and shafts with glued strain gauges. 1, 2), wherein the inlet to the pump (5) is connected. The pump 5 pushes the suction working medium from the working medium tank 18 into the discharge line 20 and into the distributor 11 via the second inlet. From the distributor 11 via the second outlet of the actuator to the first throttle body 14 and secondly to the second throttle body 24 and through the check valve 21 to the return line 8. From the first throttle body 14, which is open, the working medium is pushed into the hydraulic motor 6 with the second clutch 3 engaged. a second internal combustion engine 2 in cold running-in. From the outlet of the hydraulic motor 6, the working medium passes through the connected second temperature sensor 15 and the second pressure sensor 1B to the return line 8, through the third throttle body 17, optionally open or the second safety valve 22. Increasing the pressure in the discharge line 20 and thereby braking effect for braking the first internal combustion engine 1 in dependence on its speed, which can also be detected by a tapping tachometer. Increasing the flow resistance of the working medium is achieved by throttling bodies 14, 24, 17, which also regulate the speed of the hydraulic motor B without having to adjust the power of the first internal combustion engine 1. The power values are then obtained from the indicated diagrams of pump 5 and hydraulic motor. 6, based on the readings of pressure, speed and temperature coefficient. The torques can be read directly from shafts with glued strain gauges. The device can be used both in testing rooms and field conditions, and in testing various equipment and run-in, eg. compressors. For internal engine cleaning with its own filtration system, for easy running gearboxes, conservation and deconservation of groups, etc. The device can be used as a special, ancillary equipment for cars, tractors and other earthmoving machines as a drive for other foreign equipment such as. earth-moving compressors, power generators, pumps, conveyors and winches located outside the transport equipment, in other words as a universal source of torque. The drive of the pump 5 to the first internal combustion engine 1 via the gearbox 27 may be a solution similar to that of tipper trucks. By the suction line (9) to the working medium tank (18) and the pump outlet (5) to the discharge line (20) connected both via the first safety valve (7) to the return line (8) and to the second distributor inlet ( 11), the first inlet of which is connected to the suction line (9) and the first outlet of the return line (8), the second outlet of the distributor (11) being connected via the throttle elements (14, 24) to the inlet of the hydraulic motor (6j). on the one hand to the check valve (21), the outlet of which is connected both directly to the return pipe (8) and secondly through a third throttle body (17) to the outlet of the hydraulic motor (6) connected to the return pipe (8) . Device according to claim 1, characterized in that a transmission (27) is provided between the pump (5) and the first coupling (4). 3. A device according to claim 1, characterized in that the distributor (11] and a hydraulic motor (6) having its outputs provided to ^the sensor button (12, 16) and a temperature sensor (13, 15).