SU1617316A1 - Apparatus for checking centrifugal oil cleaner - Google Patents

Abstract

The invention relates to the means of monitoring and diagnosing an internal combustion engine and allows for an increase in the accuracy, reliability and efficiency of the control. The technical condition of the oil cleaner is determined by the duration of rotation of its rotor, i.e. the more rotor is contaminated, the greater its mass and the longer the rotor rotates by inertia after the engine stops. The device automatically determines the duration of rotation of the rotor of the oil cleaner after the engine has stopped. For this purpose, a special impulse sensor is used, mounted in the housing and the rotor of the oil cleaner. The signals from the sensor come to a special electronic device, where the duration of the rotor rotation, which is analyzed by the device, is determined from the frequency of the electrical signals. The results of the analysis are displayed on an indicator board in the form of a technical impact or a forecast of the residual life of the oil cleaner. 1 hp f-ly, 2 ill.

Description

The invention relates to mechanical engineering, in particular to means of diagnostics and control of internal combustion engines, and can be used to monitor the degree of contamination, as well as to determine the efficiency and resource of a centrifugal oil cleaner.

The purpose of the invention is to improve the accuracy of reliability and speed of control. In FIG. 1 shows a block diagram of the proposed device; in fig. 2 - body of the oil cleaner with the rotor.

The device contains (Fig. 1) dual toggle switch 1, amplifier-limiter 2, speed sensor 3, timer 4, engine stop mechanism 5, onboard power supply terminal 6, centrifugal oil cleaner 7, frequency divider 8, counter 9, pulse shaper 10, first trigger 11 , electronic key 12, integrator 13, first 14, second 15 and third 16 comparators, comparison block 17 first 18 and second 19 one-shot register 20, decoder 21, interface block 22, on-board digital computer 23, second trigger 24

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the logical element AND-NOT 25, the third element 26, the first indicator 27, the zeroing button 28, the second indicator 29, the engine 30 and also (Fig. 2) the body of the oil cleaner ZG cover 32, the windings 33, the magnetic nuts 34 fastening studs 35. the rotor 36 and secure

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The windings 33 are placed in a stationary body of the oil cleaner, and the magnetic nuts 34 are in the body of the rotating rotor 36 on the studs 35. The distance between the magnetic nuts 34 is chosen such that during the rotation of the rotor 36 they are coaxial with the windings 33.

The signal from the windings 33 goes to the 3 rpm sensor, whose output through the first pair of contacts (BKl) of the dual toggle switch 1 is connected to the input of the limiting amplifier 2, the output of which is connected to the input of the limiting amplifier 2, the output of which is connected to the divider 8 input and the logic element s the input of the logical element AND is NOT connected to the first time output

with

pa 4 and the first input of the second trigger 24, the second input of which is connected to the input of the second one-oscillator 29. With the output of the first one-oscillator 18 and the second input of the register 20. The first inputs of the register 20 are connected to the corresponding outputs of the counter 9, the first input of which is connected to the output of the frequency divider 8 , the second - with the output of the second one-shot 19, and the third - with the second output of the timer 4 and the input of the first

The time interval during which it is necessary to calculate the rotor 36 rotations of the oil cleaner 7 is set by timer 4, which starts when 10 pulses enter the input of the imaging unit 10 and the on-board network voltage 24 (12) V after the dual toggle switch 1 is turned on. pulse generator 10 is set to the first 11 state

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po,., “...“ .... “:; vnn is a logical value of -0 and permits one-vibrator 18 to flow through the electronic key 18. The output of the logical constant voltage to the input of the AND-25 integrate is connected to the first input the third and the 13 coGr. forms a linear nago trigger 26 of the second input of the connection –P; ™ J „, spilling on the air vns with a button of 28 nulling and with a double button, the second 15 and the third 16 d„ „„ imer 4 and exit from the input .. Perehog -7 ™ ov, e „apr w |„ „ of these cS ™ rn; Bb rolo “r; Ka yTop zako.partoro. podovrany so „„ o6p az „„,; ™

neither the second inputs of which are connected to the corresponding outputs of the register z (} and the inputs of the decipher 21, the outputs of which are connected to the corresponding inputs of the f f I. GS f, rf 41, d II LT

at the output of, for example, the first comparator 14, a logical unit appears 120 seconds after the toggle switch 1 is turned on and at the outputs of the second 15 and third 16 are compass connected with the corresponding inputs of the second 20 aTors ::; units of units of indica- tor 29. Indicator units 22 and s. 31 s. The impulse with the outputs is connected to the onboard computing machine 23.

Timer 4 contains successively connected shaper 10 pulses;

eleven ", ,,,". , -, h g 11 111 l ptggt I / MHTt-T

responsibly in 30 and 31 s. A pulse with a duration of 1 s is allocated at the same time at block 17 of the comparison and enables the counter 9 to count the pulses from the output of the divider 8, the frequency-fed driver, and the pulses of the per-pulse ...... o.v pulse front first

trigger 11, electronic key 2 integra 25 l П «Р 18 produces a short

o nl P I p I l I 1 p 1 A I -. J. Rotor 13 and the first comparator 14, as well as the second 15 and third 16 Comparators, connected respectively to the first and second inputs of the comparator block 17, the output of which is the second timer output.

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the one-shot 18 produces a short pulse, which rewrites the contents of counter 9 into register 20 and starts the second one-shot 19, which flushes counter 9. The readings of counter 9 are registered by the second timer output. Pegistpe 20 is converted to

The device works as follows, and. about the roto in the rotor, for example,

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The driver turns on the dual toggle switch 1, at this, the input from the amplifier limiter 2 receives a signal from the output of the sensor 3 turns of the centrifugal oil cleaner 7, and the inputs of the timer 4 and engine 5 stops the terminal 6 (12) V. At this time, the engine 30 stops, and the rotor ZB of the oil cleaner continues to rotate inertia. Its speed is fixed by sensor 3.

When the engine is operating, the rotor rotates under the action of the active-reactive forces of the oil flowing from the nozzles. Its magnetic nuts 34 rotate around the subclip 2 from the rotor revolutions, for example, into the power reserve of the machine before servicing the oil cleaner under the specified operating conditions and are displayed on the second indicator 29 The OS data recorded in register 20 MAY be entered through the unit 22 the on-board digital computer 23 for, for example, statistical processing and compiling a progress goat of the oil cleaner during its operation under specified conditions. The readiness signal of reliable data in the register forms 40 with the second trigger 24, which is set to one state at the end of the pulse at the output of the first one-shot 18 and permits the passage through the interface 22 of the response signal to the signal

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ki 34 during rotation orazovat around pspi .. ШМ93 Gboos second

Yizhnyh windings 33 variable magnetic request on-board digital computers 26. LOpoc second viznyh OUMUIUK 00 J QQ 4.r .., u. ° .. „„ r-r oo the legal status of the OS1111-С1vj i .jj ivvij, -. ,

the trigger 24 is reset to the initial state by a signal coming from the output of the first comparator 14, which also permits the pulse signals from the output to pass through the NAND gate.

; y; o; op a m optoamplifier 7 correspond to the BO-amplifier 2, which sets the impulse nL at the output of the sensor 3 and corresponds to the third trigger 26 in the unit state - SeTCTBeS to the amplifier 2, which is indicated first Indica-drink step on the input of the divider 8 frequency. 27 and indicates a non-stop Hop dechit 8 frequency arrives Shems 2 minutes after turning on the tumbler every Tcbi, each of which corresponds to par 1 (stopping the engine 30), rotating ONE turn of the rotor 36. On the rotor counter 9 55 of the oil cleaner 7 that the signal is used. The counting of rotor revolutions leads to an unacceptable contamination of the rotor and the layer of the coater corresponding to the quantity of the cleaning agent 7 and indicates the need for washing.

tSU 01 l. WVJ 1VIVJ I W J. -. - R. As a result, in the windings 33 pulsed signals are formed, which are converted by the limiting amplifier 2 into square impulses corresponding to 1 1 L logic levels, with each fv ia Ji i i

wu pulses from the output of divider 8 frequency.

The time interval during which it is necessary to calculate the rotor 36 rotations of the oil cleaner 7 is set by timer 4, which starts when 10 pulses enter the input of the imaging unit 10 and the on-board network voltage 24 (12) V after the dual toggle switch 1 is turned on. pulse generator 10 is set to the first 11 state

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and permits the supply through the electronic key of a constant voltage to the input of the integrated 13 coGy. forms a linear on-P; ™ J „, sprinkling on vns n ,, the second 15 and third 16 - -7 ™ s, e„ apr w | „„ these k.parato. podovrany so „„ o6p az „„,; ™

and permits the supply through the electronic key of a constant voltage to the input of the integrated 13 coGy. forms a linear on-P; ™ J „, sprinkling on vns n ,, the second 15 and third 16 - -7 ™ s, e„ apr w | „„ these k.parato. podovrany so „„ o6p az „„,; ™

at the output of, for example, the first comparator 14, a logical unit appears 120 seconds after the toggle switch 1 is turned on and at the outputs of the second 15 and third 16 computers:; gich; units of units in VcD of SOD and 31 s. Impulse length aTors ::; gich; units of units in VcD of SOD and 31 s. The impulse is durable in 30 and 31 s. A pulse with a duration of 1 s is allocated at the same time at a block 17 of comparison and enables the counter 9 to count the pulses from the output of the divider 8 of the frequency ....... o.v pulse front first

uh ..... o.v pulse front first

l P “P 18 produces short

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the one-shot 18 produces a short pulse, which rewrites the contents of the counter 9 into the register 20 and starts the second one-shot 19, which flushes the counter 9. The readings of the counter 9, registered to the recorder 20 are converted into

  and. about the roto in the rotor, for example,

pegistpe 20 converted to de

so and about the roto in the rotor, for example,

from the rotor speed, for example, into the power reserve of the maschina prior to servicing the oil cleaner under the specified operating conditions and displayed on the second indicator 29 The OS data recorded in the register 20 MAY be entered through the matching unit 22 into their on-board digital computer 23 for example, statistical processing and compiling a progress goat for the oil cleaner during its operation under specified conditions. The readiness signal of reliable data in the register forms 40 with the second trigger 24, which is set to one state at the end of the pulse at the output of the first one-shot 18 and permits the passage through the interface 22 of the response signal to the signal

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  request of on-board digital computer 26. LOpoc second ° .. „„ rr oo single status implemented Disconnection of the first indicator 27 and setting (reset to initial state of timer 4 is effected by a signal from the output of the zero button 28 by turning off the toggle switch 1. The device is restarted after output of the engine to the operating speed mode by turning on the toggle switch 1. Thus, the proposed control device of the centrifugal oil purifier allows constant operational control of its condition as during technical maintenance. maintenance and during movement.It will exclude the operation of the engine on the crude oil, which will increase its service life and ensure trouble-free operation.

Claims (2)

Invention Formula . A device for controlling a centrifugal oil cleaner, containing an engine stop mechanism, a speed sensor, a centrifugal oil cleaner and a timer, which is different in that, in order to improve the accuracy, reliability and efficiency of the control, the device additionally contains a dual toggle switch, a limiting amplifier, a frequency divider, a counter with three inputs and an output, a first and a second one-shot, a register, a de-blocker, a interface unit with two inputs and an output, an on-board computer, a second trigger, a logic element NAND with two inputs and output, the third trigger with two inputs and output, the first indicator, the zero button and the second indicator, the timer contains a driver, the first trigger with two inputs and output, an electronic switch with two inputs and output, an integrator with two inputs and output, the first, second and third Comparators with two inputs and output and a comparison unit with two inputs and output, the output of the engine speed sensor through the first pair of contacts of the dual toggle switch connected to the input of the amplifier-limiter, the output of which n to the input of the frequency divider and the second input of the logical AND-NO element, whose first input is connected to the first output of the timer and the first input of the second flip-flop, a second input coupled to the input of a second monostable multivibrator with ten 15 0 five 0 0 five the output of the first one-shot and the second input of the register, the first inputs of which are connected to the corresponding outputs of the counter, the first input of which is connected to the output of the frequency divider, the second - to the output of the second one-shot, and the third - to the second output of the timer and the input of the first one-shot. the output of the logical element AND-NOT is connected to the first input of the third trigger, the second input of which is connected to the button and the sixth input of the timer, and the output of which is connected to the input of the first indicator, the output of the second three -gera connected to the first input of the interface block, the second inputs connected to the corresponding outputs of the register and the inputs of the decoder, the outputs of which are connected to the corresponding inputs of the second indicator, the interface block is connected to the onboard computer by its output, the first input of the timer and the input of the mechanism ma stop the engine through the second pins of the toggle switch connected to the onboard power supply terminal, the timer contains a pulse shaper, whose input is the first input of the timer, and the output of which through the serially connected first trigger, electronic key, integrator and first comparator is the first timer output,; - The first inputs of the first trigger and the integrator are combined and are the luecTbiM timer input, the second electronic key input is the second timer input, the integrator output is also connected to the first input of the second and third comparators, the second inputs of which are the fourth and fifth respectively the timer inputs, and the outputs of which are connected respectively to the first and second inputs of the comparison unit, the output of which is the second timer output connected to the third input of the counter and the input of the first one-oscillator. 2. A device according to claim 1, characterized in that the speed sensor comprises two windings placed in a diametrically opposite direction in the fixed body of the oil cleaner, and two magnetic nuts which are placed in the rotating rotor, and the magnetic nuts are placed in such a way that during the rotation of the rotor they go with windings. 32 J4