SU723408A1

SU723408A1 - Device for measuring internal combustion engine power

Info

Publication number: SU723408A1
Application number: SU782677482A
Authority: SU
Inventors: Виктор Федорович Гилин
Original assignee: Gilin Viktor F
Priority date: 1978-10-25
Filing date: 1978-10-25
Publication date: 1980-03-25

Description

Изобретение относится к измерительной технике и может быть использовано при контроле режимов работы двигателя внутреннего сгорания.The invention relates to measuring equipment and can be used to control operating modes of an internal combustion engine.

Известное устройство для определения режимов работы двигателя, содержащее датчики крутящего момента и числа обо ротов, регистратор и источник питания, обладает ограниченными функциональными возможностями ИНаиболее близким по технической сущ ности и достигаемому результату к предлагаемому является устройство для измерения мощности двигателя внутреннего сгорания, содержащее датчики крутящего _J5момента и частоты вращения вала двигателя, связанные с блоком синтеза информации, на циферблате которого нанесены кривые равной мощности двигателя, расположенные в плоскости двух координат- 20 ных осей, указатель и источник питанияThe known device for determining engine operating modes, comprising torque and speed sensors, a recorder and a power source, has limited functionality. The closest in technical essence and the achieved result to the proposed one is a device for measuring the power of an internal combustion engine containing torque sensors _J5 the moment and frequency of rotation of the motor shaft, associated with the information synthesis unit, on the dial of which are plotted equal power curves latch located in the plane of two coordinate axes - 20, pointer and power source

Недостатками такого устройства являются низкая точность отсчета показаний, обусловленная конструкцией указателя, а также большие габариты устройства.The disadvantages of this device are the low accuracy of the readout due to the design of the pointer, as well as the large dimensions of the device.

Цель изобретения — повышение точности отсчета и уменьшение габаритных размеров.The purpose of the invention is to improve the accuracy of reference and the reduction of overall dimensions.

Указанная цель достигается тем, что указатель выполнен в виде амперметра, включенного в электрическую цепь с магазином сопротивлений, а кривые равной мощности циферблата выполнены в виде проводников, соединенных с магазином сопротивлений и с источником питания посредством скользящего контакта ползунка, размещенного на двух взаимно перпендикулярных направляющих в точке их пересечения, связанных с двумя подвижными вдоль координатных осей каретками, соединенными соответственно с датчиками крутящего момента и частоты вращения.This goal is achieved by the fact that the pointer is made in the form of an ammeter included in an electric circuit with a resistance store, and curves of equal power of the dial are made in the form of conductors connected to the resistance store and with a power source by means of a sliding contact of a slider placed on two mutually perpendicular guides in the point of their intersection associated with two carriages moving along the coordinate axes, respectively connected to sensors of torque and speed.

На чертеже представлена принципиальная схема предлагаемого устройства.The drawing shows a schematic diagram of the proposed device.

Устройство для измерения мощности двигателя внутреннего сгорания содержит блок синтеза информации 1, который имеет две направляющие 2 и 3, расположенные взаимно перпендикулярно и являющиеся осями отсчета крутящего момента вала двигателя 4 и частоты его вращения. На направляющих 2 и 3 размещены каретки 5 и 6, которые связаны с датчиком крутящего момента 7 и датчиком 8 частоты вращения вала связями 9 и 10. Датчик 7 является измерителем положения рейки топливного насоса 11, а датчик 8 - измерителем хода муфты центробежного датчика частоты вращения. Каретки 5 и 6 имеют направляющие 12 и 13, расположенные взаимно перпендикулярно. Ползунок 14 посредством двух пазов свободно установлен на направляющих 12, 13 и имёет электрическую связь с Источником питания 15, который замкнут в цепь, состоящую из магазина сопротивлений 16 и амперметра 17, имеющего градуировку шкалы в единицах мощности. Сопротивления 16 соединены с проводниками 18, выполненными в виде кривых линий, соответствующих кривым равной мощности двигателя 4 при работе его на различных режимах и расположенных в плоскости двух координатных осей, параллельных направляющим 2 и 3.A device for measuring the power of an internal combustion engine contains an information synthesis unit 1, which has two guides 2 and 3 arranged mutually perpendicularly and being the reference axes of the torque of the engine shaft 4 and its rotational speed. On the rails 2 and 3 there are carriages 5 and 6, which are connected to the torque sensor 7 and the shaft speed sensor 8 by the links 9 and 10. Sensor 7 is a gauge of the position of the rail of the fuel pump 11, and sensor 8 is a meter of the clutch stroke of the centrifugal speed sensor . The carriages 5 and 6 have guides 12 and 13 located mutually perpendicular. The slider 14, through two grooves, is freely mounted on the rails 12, 13 and is in electrical communication with the power supply 15, which is closed in a circuit consisting of a resistance store 16 and an ammeter 17 having a graduation scale in power units. Resistance 16 is connected to the conductors 18, made in the form of curved lines corresponding to the curves of equal power of the engine 4 when it is operating in different modes and located in the plane of two coordinate axes parallel to the guides 2 and 3.

Устройство работает следующим образом.The device operates as follows.

Датчики 7 и 8 измеряют текущие значения, крутящего момента вала двигателя 4, его частоту вращения и посредством связей 9 и 10; перемещают каретки 5 и 6 в соответствующие положения. При этом ползунок 14 занимает строго определенное положение на плоскости проводников 18, соответствующее достигнутой двигателем мощности. Ползунок 14 посредством скользящего контакта замыкает один из проводников 18, который через соответствующее сопротивление магазинаSensors 7 and 8 measure the current values of the torque of the shaft of the engine 4, its rotational speed and through connections 9 and 10; the carriages 5 and 6 are moved to the corresponding positions. In this case, the slider 14 occupies a strictly defined position on the plane of the conductors 18, corresponding to the power achieved by the engine. The slider 14 through a sliding contact closes one of the conductors 18, which through the corresponding resistance of the store

723408 4 сопротивлений 16 обеспечивает протекание электрического тока пропорционального уровню достигнутой двигателем мощности.723408 4 resistances 16 provides the flow of electric current proportional to the level achieved by the engine power.

₅ Мощность двигателя 4 определяется по положению стрелки амперметра 17. ₅ Engine power 4 is determined by the position of the arrow of ammeter 17.

Claims

The invention relates to a measurement technique and can be used in monitoring the operating modes of an internal combustion engine. A known device for determining engine operating conditions, comprising torsional MoMeirra and speed sensors, a recorder and a power source, has limited functionality of 1D. The closest in technical essence and the achieved result to the proposed is a device for measuring the power of the internal combustion engine, which contains torque sensors and rotational speeds of the engine shaft associated with the information synthesis unit, on which Vd1ferblata curves of equal power of the engine located in the plane two coordinate axes, pointer and power source t2l. The disadvantages of such a device are with a low reading accuracy. due to the design of the index, as well as large dimensions of the device. The purpose of the invention is to increase the accuracy of reference and reduce the overall dimensions. This goal is achieved by the fact that the pointer is made in the form of an ammeter connected to an electrical circuit with a resistance box, and the curves of equal dial power are made in the form of conductors connected to the resistance box and to the power source by means of a sliding contact of a slider located on two mutually perpendicular springs guides at the point of their intersection, connected with two carriages moving along the coordinate axes, which are connected respectively with torque and rotation frequency sensors. The drawing shows a schematic diagram of the proposed device. A device for measuring the power of the BHyrpeHFiero engine of combustion contains an information synthesis unit 1, which has two guides 2 and 3 located mutually perpendicularly and are axes of reference for the torque of the shaft of the engine 4 and its frequency of rotation. On the guides 2 and 3, there are carriages 5 and 6i which are associated with a torque sensor 7 and a shaft speed sensor 8 with links 9 and 1O. Sensor 7 is the lli gauge of the fuel pump rail and sensor 8 is the gauge of the clutch of the centrifugal rotational speed sensor. The carriages 5 and 6 have guides 12 and 13 arranged mutually perpendicularly. The slider 14, by means of two grooves, is freely mounted on the guides 12, 13 and is electrically connected to the power source 15, which is closed into a circuit consisting of a resistance box 16 and an ammeter 17, which has graduations in units of power. Resistances 16 are connected to conductors 18, made in the form of curved lines corresponding to curves of equal power of engine 4 when operating in different modes and located in the plane of two coordinate axes parallel to guides 2 and 3. The device operates as follows. Sensors 7 and 8 measure the current torque values of the motor shaft 4, its rotational speed and by means of couplings 9 and 10; move carriages 5 and 6 to their respective positions. In this case, the slider 14 occupies a strictly defined position on the plane of the conductors 18, corresponding to the power achieved by the engine. The slider 14 by means of a sliding contact closes one of the conductors 18, which through the corresponding resistance of the magazine 72 84 of the resistances 16 ensures the flow of electric current proportional to the level of power reached by the engine. The power of the engine 4 is determined by the position of the arrow of the ammeter 17. Claims An apparatus for measuring the power of an internal combustion engine comprising torque and rotational speed sensors of an engine shaft associated with an information synthesis unit, on the dial of which curves of equal engine power are located a plane of two coordinate axes, a pointer and a power source, characterized in that, in order to increase the accuracy of the reference and reduce the overall dimensions, the pointer is made in the form of amperes The trap is connected to an electrical circuit with a resistance box, and the curves of equal power of the dial are made as conductors connected to the resistance box and to the power source by means of a sliding contact of a slider placed on two mutually perpendicular guides at the crossing point associated with two moving boxes along the axes connected respectively to the torque and rotation frequency sensors. Sources of information taken into account in the examination 1. Authorship of the USSR № 4О9097, cl. & O1 L 3/24, 1972.

2. USSR author's certificate number 575510, cl. O- O1 U 3/24, 1976 (prototype).

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