SU943417A1

SU943417A1 - Diesel protection system

Info

Publication number: SU943417A1
Application number: SU803216853A
Authority: SU
Inventors: Анатолий Николаевич Карташевич; Александр Григорьевич Мурашкин
Priority date: 1980-12-15
Filing date: 1980-12-15
Publication date: 1982-07-15

Description

(54) СИСТЕМ.А ЗАЩИТБ ДИЗГгЛЯ(54) SYSTEM. DISPLAY PROTECTION

1one

Изобретение относитс к систе.мам запшты дизел по сигналам от датчиков состо ни его эле.ментов, масла, топлива.The invention relates to diesel engines based on signals from sensors for the state of its elements, oil, and fuel.

Известны систе.мы защиты дизел , содержащие блок индикации и датчики контро .л , каждый из которы.х выполнен в виде двух изолированных электродов и св зан с блоком индикации, реагирующим на падение напр жени между электрода.ми при наличии между ни.ми воды, причем блок индикации выполнен в виде сигнализаторов, усилител , реле и электромагнитного клапана выключени подачи топлива. В таки.х систе .мах сигнал состо ни по вл етс при достижении заданного предельного уровн наличи воды, например, в топливе I.The diesel engine protection systems are known, which contain an indication unit and control sensors, each of which is made as two isolated electrodes and is connected to a display unit that reacts to a voltage drop between the electrodes when there is water between them. The display unit is designed as a signaling device, an amplifier, a relay, and a fuel shut-off solenoid valve. In such systems, a state signal appears when a given water level is reached, for example, in fuel I.

Однако степень вли ни наличи воды в разных элементах двигател на его состо ние различна. В св зи с эти.м нужен последовательный контроль за уровнем воды в баке и фильтре, что повышает надежность работы двигател .However, the degree of influence of the presence of water in different elements of the engine on its state is different. In connection with this, sequential control of the water level in the tank and the filter is necessary, which increases the reliability of the engine.

Целью изобретени вл етс повыщение надежности работы дизел .The aim of the invention is to increase the reliability of the diesel.

Указанна цель достигаетс те.м, что электроды одного датчика размещены в топливном баке, а другого - в топливномThis goal is achieved by the fact that the electrodes of one sensor are placed in the fuel tank and the other in the fuel tank.

фильтре грубой очистки, приче.м первый из датчиков св зан через усилитель с сигнализатором , а второй -- через усилитель и ре.те с сигнализатором и клапаном.The coarse filter, the first of the sensors, is connected through an amplifier with a signaling device, and the second through an amplifier and reconnect with a signaling device and a valve.

На фиг. 1 показана схема системы питани топливом; на фиг. 2 - вариант фильтра и бака со встроенным датчико.м диэлектрической проницаемости среды: на фиг. 3 - электрическа схема системы защиты.FIG. 1 shows a diagram of a fuel supply system; in fig. 2 shows a variant of a filter and a tank with an integrated sensor of the dielectric constant of the medium: in FIG. 3 - electrical circuit protection system.

Схема систе.мы питани (фиг. 1) содержит все элементы стандартной систе.мы, т. е. The power system diagram (Fig. 1) contains all the elements of the standard system, i.e.

10 топливный бак 1, фильтр грубой очистки ФГО 2, топливоподкачивающий насос 3, топливопроводы 4. Дополнительно предлагаема система содержит запорное устройство (электроклапан) 5 на входе топ.ти15 воподкачивающего насоса и, кроме того, несколько изменена конструкци топливного бака и ФГО встроенны.ми в них датчиками 6. На фиг. 2 представлен простейший вариант заделки датчика диэлектрической проницаемости в бак и ФГО. В корпус 7 10 fuel tank 1, coarse filter FCF 2, fuel pre-pump 3, fuel lines 4. Additionally, the proposed system contains a shut-off device (electro-valve) 5 at the inlet of the top 15 of the priming pump and, moreover, the fuel tank design and the CVF are built in. these are sensors 6. In FIG. 2 shows the simplest version of the seal of the dielectric constant sensor in the tank and the CSF. In the housing 7

Claims

20 of the filter or tank is screwed into the plug 8 with an electrode 9 embedded in it. The electrode is isolated from the housing by a dielectric 10. The plug is sealed with a ring 11. The same plug with an electrode is fixed to the opposite side of the housing wall. The electrical part of the protection system (Fig. 3), in addition to sensors 6, contains an amplifier 12, a relay 13, dr.a cg1: the analyzer 14 and 15, as well as electric cables. 5 and a power supply 16 (battery or generator). (The protection system works as follows. When accumulating sludge in the tank, its level reaches the electrodes 9 of sensor 6. To e:; a small potential is applied to the sensor (about 1 2 V). In the presence of clean fuel (relative dielectric constant) 2.042.3) the current between the electrodes does not leak. The dielectric constant WD1 .1, even clean, is already 70-87 units, and the node contaminated even more, therefore, between the electrodes 9 (Fig. 2) of the sensor 6 (Fig. 3) begins a weak current is flowing, it is reinstated by one of the emergency channels The cell 12 is fed to the level detector 14 in the tank. If the tank is untimely drained from tank 1 (Fig. 1), it can 1 () 1: accumulate and accumulate in CSF 2 when the level in the CSF reaches a dangerous position (possibility fuel pump), the amplifier 12 (phi-1. 3) generates a signal from sensor 6, usi. resident 12 energizes) relay 13, which will actuate the solenoid 5 and the alarm 15. T (; pipe to the pump is closed And the control panel enters alarm system triggered. The proposed device makes it possible to eliminate the ingress of water into the fuel priming and fuel injection pump and thereby increases the reliability and durability of the elements of the fuel equipment and the diesel engine as a whole. Claims of the Invention (Diesel Protection System, comprising an indication unit and control sensors, each of which is made up of two isolated electrodes and is associated with an indication unit that reacts to a voltage drop between the electrodes when there is water between them, and the indicating unit is 1). as alarms, amplifiers, relays, and a fuel shut-off solenoid valve, characterized in that, in order to increase reliability, the electrodes of one sensor are placed in the fuel tank, and the other - in the fuel filter; ki, the first of the sensors associated with signaling through the amplifier, and the second - through an amplifier and a relay switch and the valve. Sources of information taken into account in the examination 1. US Patent No. 4185267, k; 1. 340/59, publ. January 1980 8

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