SU1002621A1

SU1002621A1 - I.c. engine lubricating system

Info

Publication number: SU1002621A1
Application number: SU813348327A
Authority: SU
Inventors: Леонид Сергеевич Волков; Игорь Сергеевич Сабуров; Олег Сунгатович Рафиков
Original assignee: Уфимский авиационный институт им.Орджоникидзе
Priority date: 1981-08-04
Filing date: 1981-08-04
Publication date: 1983-03-07

Description

Изобретение относится к двигателестроению, а именно к системам смазки двигателей внутреннего сгорания с устройствами для предпускового разогрева масла.The invention relates to engine building, and in particular to lubrication systems of internal combustion engines with devices for preheating oil.

Известна система смазки двигателя 5 внутреннего сгорания, содержащая масляную емкость, насос высокого давления для предпусковой прокачки масла через фильтр в главную масляную Mair гистраль, всасывающий и нагнетатель- ” ный трубопроводы насоса, дроссель разогрева с осью и жестко связанным с ней наконечником, установленным в нагнетательном трубопроводе с возможностью поперечного перемещения относительно продольной оси последнего, и датчик температуры масла [Ί J.A known lubrication system of an internal combustion engine 5 containing an oil tank, a high pressure pump for pre-starting oil pumping through a filter into the main oil Mair line, a suction and discharge pump pipelines, a heating choke with an axis and a rigidly connected tip installed in the discharge the pipeline with the possibility of lateral movement relative to the longitudinal axis of the latter, and the oil temperature sensor [Ί J.

Однако эта система смазки недостаточно надежна в работе из-за значи2I тельного гидравлического сопротивления в нагнетательном трубопроводе насоса после дросселя разогрева. Кроме того, при использовании этой системы возникают большие тепловые деформации деталей двигателя из-за резкого изменения температурного режима их работы при предпусковом разогреве масла.However, this lubrication system is not reliable enough due to the significant hydraulic resistance in the discharge pipe of the pump after the heating choke. In addition, when using this system, large thermal deformations of engine parts occur due to a sharp change in the temperature regime of their operation during preheating of the oil.

Цель изобретения - ускорение предпускового подогрева масла и повышение надежности работы системы.The purpose of the invention is to accelerate the preheating of oil and increase the reliability of the system.

Цель достигается тем, что система смазки двигателя внутреннего сгорания, содержащая масляную емкость, насос высокого давления для предпусковой прокачки масла через фильтр в главную масляную магистраль, всасывающий и нагнетательный трубопроводы насоса, дроссель разогрева с осью и жестко связанным с ней наконечником, установленным в нагнетательном трубопроводе с возможностью поперечного перемещения относительно продольной оси последнего, и датчик температуры масла, снабжена дополнительным трубопроводом, сообщенным с нагнетательным трубопроводом и с емкостью, дроссель разогрева снабжен дополнитель ным жестко связанным с осью наконец-’ ником, установленным в дополнительном трубопроводе, а датчик температуры размещен в нагнетательном трубопроводе и кинематически связан с 5 осью дросселя разогрева.The goal is achieved by the fact that the lubrication system of the internal combustion engine containing an oil tank, a high pressure pump for pre-starting oil pumping through the filter into the main oil line, suction and discharge pipelines of the pump, a heating throttle with an axis and a rigidly connected tip installed in the discharge pipe with the possibility of lateral movement relative to the longitudinal axis of the latter, and the oil temperature sensor is equipped with an additional pipe in communication with the discharge ruboprovodom and with the container is provided with additional heating choke nym rigidly connected with the axis nakonets' nickname set in the additional conduit, and a temperature sensor disposed in the discharge line and is kinematically connected to the axis 5, the heating inductor.

На фиг. 1 схематически представлена предлагаемая система смазки; на фиг. 2 - узел Т на фиг. 1, продольный разрез, увеличенный масштаб (вса- 10 сывающий трубопровод насоса условно не показан); на фиг. 3 ~ электрическая схема включения системы запуска двигателя внутреннего сгорания с предлагаемой системой смазки. ,15In FIG. 1 schematically shows the proposed lubrication system; in FIG. 2 - node T in FIG. 1, longitudinal section, enlarged scale (the suction pipe of the pump 10 is not shown conventionally); in FIG. 3 ~ electrical circuit for starting the internal combustion engine starting system with the proposed lubrication system. ,fifteen

Система смазки двигателя внутрен- ^;него сгорания содержит масляную емкость (картеру 1, насос 2 высокого давления с электродвигателем 3 его привода и со всасывающим и нагнета- ₂о тельным трубопроводами 4 и 5 соответственно, фильтр 6, установленный на линии связи нагнетательного трубопровода 5 с главной масляной магистралью ^последняя не показана), дополнитель-₂₅ный трубопровод 7, сообщенный с нагнетательным трубопроводом 5 и с картером 1, и дроссель разогрева масла имеющий ось 8 и жестко связанные с ' ней наконечники Эи 10, установленные^ в трубопроводах 5 и 7 соответственно с возможностью поперечного перемещения относительно их продольных осей.' Датчик (регулятор) 11 температуры масла размещен в нагнетательном трубопроводе 5 и кинематически связан при ³⁵помощи рычага 12 с осью 8 дросселя разогрева, а при помощи кронштейна 13— с подвижным электрическим контактом 14 электрической схемы включения системы запуска двигателя внутреннего сгорания. Контакт 14 взаимодейст-t вует с неподвижным электрическим контактом 15. Электрическая схема включения системы запуска двигателя (фиг. 3) содержит также включатель 16 ⁴⁵зажигания, стартер 17 и аккумуляторную батарею 18.Engine internal lubrication system ^; Combustion it comprises an oil tank (crankcase 1, a pump 2 of high pressure to the motor 3 and its drive with suction and nagneta- ₂ Tel'nykh of conduits 4 and 5 respectively, filter 6 is mounted on the link discharge pipe 5 to the main oil manifold ^ latter is not shown), an additional ₂₅ ny conduit 7 communicates with the discharge conduit 5 and the casing 1, and heating oil having a throttle shaft 8 and rigidly associated with 'it Ei lugs 10 installed in the piping ^ 5 and 7, respectively, with possibility awn transverse movement relative to their longitudinal axes. ' Transmitter (controller) 11 oil temperature placed in the delivery line 5 and cinematically connected to the lever ³⁵ at 12 with the axis 8 of heating inductor, and by means of the arm 13 with the movable electrical contact 14 of the electric circuit incorporating the internal combustion engine system. Contact 14 interacts with a fixed electrical contact 15. The electric circuit for starting the engine starting system (Fig. 3) also includes an ignition switch 16 ⁴⁵ , a starter 17, and a battery 18.

Система смазки работает следующим образом.The lubrication system operates as follows.

При замыкании электрической цепи ⁵⁰включателем 16 зажигания питание от аккумуляторной батареи 18 подается на контакты электродвигателя 3 привода насоса 2, и масло из емкости (картера) 1 начинает засасываться через мае-⁵⁵лоприемник, установленный в картере 1 , и всасывающий трубопровод 4 в шестеренчатый насос 2 высокого дав ления, откуда масло под давлением порядка 70-100 ат через трубопроводы 5 и 7- поступает к наконечникам 9 и 10‘ дросселя разогрева. Положение наконечников 9 и 10 относительно трубопроводов 5 и 7 определяется температурой масла, поступающего в трубопровод 5, вследствие того, что датчик (регулятор) 11 температуры установлен в трубопроводе 5 и связан с осью 8 дросселя разогрева при помощи рычага 12. При низкой температуре масла, поступающего в трубопровод 5, жестко связанный с осью 8 наконечник 9 перекрывает поперечное сечение трубопровода 5, и масло, не поступая к фильтру 6, проходит по дополнительному трубопроводу 7 в емкость (картер) 1, при этом масло разогревается за счет сил внутреннего трения, проходя через узкое сечение трубопровода 7образованное наконечником 10 дросселя разогрева. По мере разогрева масла и уменьшения его вязкости датчик ( регулятор) 11 температуры масла перемещает при помощи рычага 12 ось 8 дросселя и жестко связанные с ней наконечники 9 и 10 вверх, вследствие чего при подъеме наконечника 9 плавно приоткрывается проходное сечение трубопровода 5, и подогретое масло начинает поступать к фильтру 6 и через него в главную масляную магистраль двигателя внутреннего сгорания. В этот период масло нагревается, проходя через узкие сечения, образованные в обоих трубопроводах 5 и 7 наконечниками 9 и 10. При достижении маслом температуры, достаточной для нормальной работы деталей двигателя внутреннего сгорания, подвижный электрический контакт 14, связанный с осью 8, входит в соприкосновение с неподвижным электрическим контактом 15 и тем самым замыкает электрическую цепь включения стартера 17 от аккумуляторной батареи 18, при этом отключается электродвигатель 3 привода насоса 2.On closing the electric circuit ⁵⁰ a switch 16, the ignition power from the battery 18 is supplied to the motor drive of the pump 3 contacts 2 and the oil from the tank (sump) starts to be sucked through 1 ^May-55 lopriemnik mounted in the housing 1 and the suction pipe 4 in a gear pump 2 of high pressure, from where the oil under pressure of about 70-100 atm through pipelines 5 and 7- flows to the tips 9 and 10 'of the heating throttle. The position of the tips 9 and 10 relative to the pipelines 5 and 7 is determined by the temperature of the oil entering the pipeline 5, due to the fact that the temperature sensor (controller) 11 is installed in the pipeline 5 and is connected to the axis 8 of the heating throttle using the lever 12. At a low oil temperature, coming into the pipeline 5, the tip 9 rigidly connected to the axis 8 overlaps the cross section of the pipeline 5, and the oil, not entering the filter 6, passes through an additional pipeline 7 into the tank (crankcase) 1, while the oil is heated by internal forces rennego friction, pass through a narrow section of the pipeline 10 7obrazovannoe tip heating reactor. As the oil warms up and its viscosity decreases, the oil temperature sensor (regulator) 11 moves the throttle axis 8 and the tips 9 and 10 rigidly connected to it with the lever 12 upwards, as a result of which when the tip 9 is raised, the passage section of the pipeline 5 smoothly opens and the heated oil begins to flow to the filter 6 and through it into the main oil line of the internal combustion engine. During this period, the oil heats up, passing through the narrow sections formed in both pipelines 5 and 7 by the tips 9 and 10. When the oil reaches a temperature sufficient for normal operation of the parts of the internal combustion engine, the movable electrical contact 14, connected to the axis 8, comes into contact with a fixed electrical contact 15 and thereby closes the electrical circuit for starting the starter 17 from the battery 18, while the motor 3 of the pump 2 is switched off.

Таким образом, предлагаемая система смазки позволяет ускорить предпусковой разогрев масла при обеспечении возможности использования менее мощных шестеренчатых насосов высокого давления по сравнению с известной системой за счет уменьшения гидравлического сопротивления при прохождении масла через фильтр, что позволяет повысить надежность работы фильтра и системы смазки в целом, а также поз1002621 воляет производить разогрев масла постепенно с емкости для хранения масла, что уменьшает тепловые деформации деталей двигателя внутреннего сгорания и повышает надежность его работы.Thus, the proposed lubrication system allows you to accelerate the preheating of the oil while making it possible to use less powerful gear high pressure pumps compared to the known system by reducing the hydraulic resistance when the oil passes through the filter, which improves the reliability of the filter and the lubrication system as a whole, and also poses 1002621 makes it possible to warm up the oil gradually from the oil storage tank, which reduces the thermal deformation of the internal engine parts with Oran and increases reliability.

Claims

FIELD OF THE INVENTION The invention relates to engine construction, namely, lubrication systems for internal combustion engines with oil pre-starting devices. A well-known lubrication system for an internal combustion engine, containing an oil tank, a high-pressure pump for starting up oil through a filter to the main oil line, pump suction and discharge pipes, a heating throttle with an axle and a rigidly connected tip installed in the discharge pipe with the possibility of lateral movement relative to the longitudinal axis of the latter, and the oil temperature sensor L J. However, this lubrication system is not reliable enough due to significant g ravlicheskogo resistance in the pump discharge conduit after the throttle heating. In addition, when using this system, there are large thermal deformations of the engine parts due to a sharp change in the temperature mode of their operation during pre-heating of the oil. The purpose of the invention is to accelerate the preheating of the oil and increase the reliability of the system. The goal is achieved by the fact that the lubrication system of the internal combustion engine contains an oil tank, a high pressure pump for starting up oil through a filter into the main oil line, pump suction and discharge pipes, a heating throttle with an axle and a fixed tip in the inlet pipeline with the possibility of lateral movement relative to the longitudinal axis of the latter, and the oil temperature sensor is equipped with an additional pipeline communicated with the injection pipe with a pipe and with a tank, the heating choke is equipped with an additional rigidly connected with the axle of the final NOK installed in the additional pipeline, and the temperature sensor is placed in the discharge pipe and is kinematically connected with the axis of the heating droplets. FIG. 1 schematically shows the proposed lubrication system; in fig. 2 — node J, in FIG. 1, longitudinal section, enlarged scale (pump suction piping is conventionally not shown); in fig. 3 is an electrical circuit for switching on the engine starting system of the internal combustion with the proposed lubrication system. The lubrication system of the internal combustion engine contains an oil capacitance (crankcase) 1, a high-pressure pump 2 with an electric motor 3 for its drive and with suction and discharge piping 4 and 5, respectively, a filter 6 installed on the communication line of the discharge pipe 5 with the main oil The last pipeline is not shown), an additional pipeline 7, connected to the discharge pipeline 5 and to the cylinder 1, and an oil heating throttle having an axis 8 and tightly connected tips 9 and 10, are installed in the pipelines 5 and 7, respectively, with the possibility of lateral movement relative to their longitudinal axes. The temperature sensor (regulator) 11 is placed in the discharge pipe 5 and is kinematically connected with the lever 12 to the axis 8 of the heating droplets, and with the help of the bracket 1 with a movable electrical contact 14 of the electrical circuit for switching on the internal combustion engine start system. The 1h contact interacts with a fixed electrical contact 15. The electrical activation system of the engine start system (Fig. 3) also contains the ignition pin 16, the starter 17 and the battery 18. The lubrication system works as follows. When the electric circuit is closed by the ignition switch 16, the power from the battery 18 is supplied to the contacts of the motor 3 of the pump 2 drive, and the oil from the tank (crankcase) 1 begins to be sucked through the receptacle installed in the crankcase 1 and the suction pipe t to the high gear pump 2 pressure, from where oil under pressure of about 70-100 atm through pipelines 5 and 7- goes to tips 9 and 10 of the throttles of heating. The position of tips 9 and 10 relative to pipelines 5 and 7 is determined by the temperature of the oil entering pipeline 5, due to the fact that a sensor (controller) 11 temperature is installed in pipeline 5 and connected to the axis 8 of the heating droplets using lever 12. When the low temperature of the oil entering the pipeline 5, which is rigidly connected to the axis 8, the tip 9 overlaps the cross section of the pipeline 5, and the oil, which does not flow to the filter 6, passes through the additional pipeline 7 into the container (crankcase) 1, while the oil is heated by Internal friction extending narrow section cherkez pipe T formed by the ferrule 10 razogrevp choke. As the oil warms up and its viscosity decreases, the oil temperature sensor (regulator) 11 moves, using a lever 12, axis 8 droplets and rigidly connected end points 9 and 10 upwards, as a result of which, when lifting the tip E, the flow area of the pipeline 5 opens slightly and the heated oil begins to flow to filter 6 and through it to the main oil line of the internal combustion engine. During this period, the oil is heated, the passage through narrow sections formed in both pipes 5 and 7 by tips 9 and 10. When the oil reaches a temperature sufficient for normal operation of the parts of the internal combustion engine, the movable electrical contact 1 connected to the axis 8 enters contact with a fixed electrical contact 15 and thereby closes the electrical circuit for switching on the starter 17 from the battery 18, while disconnecting the pump drive electric motor 3

2. Thus, the proposed lubrication system allows accelerating the preheating of the oil while allowing the use of less powerful high-pressure gear pumps compared to the known system by reducing the hydraulic resistance when the oil passes through the filter, which improves the reliability of the filter. lubricants as a whole, and also allows the oil to be heated gradually into an oil storage tank, which reduces the thermal deformations of the parts of the engine combustion and increases the reliability of his work. The invention The lubrication system of an internal combustion engine, containing an oil tank, a high pressure pump for starting up oil through a filter to the main oil line, pump suction and discharge pipes, a throttle of ramification with an axle and a rigidly connected tip connected to it injection pipe with lateral movement relative to the longitudinal axis of the latter, and an oil temperature sensor, characterized in that, in order to accelerate the pre-heating of the oil and increase the reliability of the system, it is provided with an additional conduit soobschennm to the discharge conduit and with the container, the heating inductor has an additional rigidly associated with the shaft tip mounted in an additional conduit, and a temperature sensor disposed in the discharge line and kinematically coupled with the throttle heating axis. Sources of information taken into account in the examination 1. USSR author's certificate Vf ,, cl. F 01 M 5/02, 1961.

f7ff

FIG. g

Pf-71

- V