SU1495650A1 - Indicator of engine utilization - Google Patents

Abstract

The invention allows to increase the stability of the detector. During engine operation, the frequency of closing and opening of the contacts of sensor 1 of the position of the fuel limiter is monitored. The electronic circuit contains driver 2 of sensor 1 with the installation input of counter 3, the information input of which is connected to the reference frequency generator 4, three frequency dividers, the first and second triggers, which provide a comparison of the frequency of closing or opening the sensor contacts with the specified for this engine operation mode (D ). If D is not loaded for periods T _H exceeding the allowed time T _{PH of} work D on the correcting branch according to the operating characteristic, then the opening frequency of sensor 1 does not exceed the reciprocal of T _PH , and indicator 12 generates an underload signal D. In case of overloads D with periods T _N exceeding the allowed time T _{PN of} work on the control branch of its operating characteristic, the closure frequency of sensor 1 does not exceed the reciprocal of T _PN , and indicator 12 generates a signal "overload D". The device provides an indication of operating modes D with high accuracy. 1 il.

Description

four

sd ate

ten

20

The invention relates to a measurement technique, in particular, to devices for determining the load of internal combustion engines, and can be used in engine tests.

The aim of the invention is to improve the stability of the device.

The drawing shows a diagram of the detector.

The warning device contains an electrical contact sensor 1 of the position of the fuel supply limiter connected via a driver 2 to the installation input of a 3-pulse counter, the information input of which is connected to the output of the reference frequency generator 4. The first, second and third 15 gatel.

the outputs of counter 3 are connected to the inputs of the first-when the motor is overloaded, the pulses of the next 5, second 6 and third 7 dividers. The output of the divider 5 is connected to the first installation input of the first trigger 8. The i separator 7 is connected to the first installation input of the second trigger 9. The output of the divider 6 is connected to the second installation inputs of the trigger 8 and 9, the outputs of which are connected to the inputs of the first K) and the second 1 1 key elements.

The output of chyumont K) is connected with the first input of the 25th and third outputs of the counter 3, and on the indicator 12 and the first input of the element the output of the two-input element 13 appears- 2I 13. The output: the battery 11 is connected with the third input of the indicator 12 and the second input element 13, and the output of the latter is connected to the second input of the indicator 12.

The device works as follows.

If the engine is not loaded for the periodio-engine load indicator, there are more tee exceeding the allowed time of the electrical contact sensor position T | CH1 (determined by the type of technological or rail associated with the driver, operation, engine brand, real pulse frequency generator , counters of operation, etc.), operation of a pulse engine, equipped with an information transmitter on the correcting branch with its working and installation inputs, the first trigger with two installation inputs, the first and second key elements you, element 2I and indicator provided with three d0 inputs, the output of the first key element associated with the first input of the indicator and the first input of element 2I, the output of the second key element connected with the third input of the indicator and the second input of element 2I, and the output of the last 45 connected to the second input of the indicator, characterized in that, in order to increase the stability of operation, the detector is additionally equipped with first, second and third frequency dividers, a second trigger with two installation inputs, a counter of the corrective branch er 50 s are made with three outputs, and ticks) and are closed with a frequency (when the generator output is connected to the engine information on the control branch of the counter, the installation input of its operating characteristic). The installation input, the first, second and third outputs of the counter 3 are received from the frequency switch, respectively, connected to the inputs of the one corresponding to one of the three modes, first, second and third dividers, depending on tim repetition frequency pulses and the reference pulses from the generator 2 to the first, second or third output of the counter 3 are of pulses defining respectively underload, optimum operation and overload of the engine. For example, when the engine is underloaded, pulses appear at the first output of counter 3 (output with the lowest conversion factor) and are fed through divider 5 to the setup input of trigger 8, the output of which through key element 10 forms control of indicator 12 at the first input, which corresponds to the mode the underloads of the motion are at the third output of the counter 3 (the output with the highest conversion factor) and go through elements 7-11 to the third input of indicator 12.

In the case of engine operation on the optimal mode, the second output of the counter 3 generates pulses that, through divider 6, block the trigger signals 8 and 9 from passing the control signals from the pers signal affecting the indication "Optimal mode."

Claims (1)

Invention Formula characteristics, the contacts of sensor 1 are opened with the frequency  -t wherein .. With engine overloads with periods T "exceeding the allowed time T," operating the engine on the control branch of its operating characteristic, the contacts of sensor 1 are closed at a frequency fn  i, in doing so. n When the engine is operating in the optimal mode, the contacts of sensor I open with a frequency (when the engine is running for engine work, the information input of the counter 3 receives reference pulses from the generator 4 with a frequency of 1 „„. the course of the first divider is connected to the first installation input of the first trigger, the output of the third divider is connected to the first gatel Depending on the ratio of the frequency of the following reference pulses and pulses from the imaging unit 2, the first, second, or third output of counter 3 appears on the first, second or third outputs, respectively, determining underloading, optimal operation mode and engine overload. For example, when the engine is underloaded, pulses appear at the first output of counter 3 (output with the lowest conversion factor) and are fed through divider 5 to the setup input of trigger 8, the output of which through key element 10 forms control of indicator 12 at the first input, which corresponds to the mode under load When the engine is overloaded, the pulses of the second and third outputs of counter 3, and at the output of the two-input element 13, appear are at the third output of the counter 3 (the output with the highest conversion factor) and go through elements 7-11 to the third input of the indicator 12. In the case of an engine operating in the optimal mode, pulses appear at the second output of counter 3, which, through divider 6, block the trigger signals 8 and 9 from passing the first and third outputs of counter 3, and at the output of the two-input element 13 c a signal acting on the indication “Optimal mode. of the outputs of the counting element 13 Invention Formula the course of the first divider is connected to the first installation input of the first trigger, the output of the third divider is connected to the first 1495650 56 The setup input of the second trigger, triggers, and the outputs of the latter are connected to the output of the second divider connected to the second, respectively, to the inputs of the first and second the installation inputs of the first and second key elements.