SU1268994A1 - Device for measuring friction forces in cylinder-piston group of internal combustion engine with air cooling - Google Patents
Device for measuring friction forces in cylinder-piston group of internal combustion engine with air cooling Download PDFInfo
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- SU1268994A1 SU1268994A1 SU853915606A SU3915606A SU1268994A1 SU 1268994 A1 SU1268994 A1 SU 1268994A1 SU 853915606 A SU853915606 A SU 853915606A SU 3915606 A SU3915606 A SU 3915606A SU 1268994 A1 SU1268994 A1 SU 1268994A1
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- SU
- USSR - Soviet Union
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- cylinder
- internal combustion
- measuring
- combustion engine
- friction forces
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Description
Изобретение относится к машиностроению и может быть использовано для измерения сил трения в цилиндропоршневой группе двигателей внутреннего сгорания и других поршневых машин с воздушным охлаждением.The invention relates to mechanical engineering and can be used to measure friction forces in a cylinder-piston group of internal combustion engines and other air-cooled reciprocating machines.
Целью изобретения является повышение точности и упрощение конструкции устройства.The aim of the invention is to improve the accuracy and simplify the design of the device.
На фиг.1 представлено устройство, разрез; на фиг. 2 — принципиальная электрическая схема.Figure 1 presents the device, section; in FIG. 2 is a circuit diagram.
Устройство содержит блок-картер 1 с установленными на нем шпильками 2, гильзу 3 и головку 4 цилиндра, закрепленные на шпильках при помощи гаек 5, измерительные элементы сил трения, установленные в гайках, и измерительный элемент давления газов, связанный с камерой сгорания. Причем измерительные элементы выполнены в виде тензометрических датчиков 6 и 7, например, включающих основные 8 и компенсационные 9 тензорезисторы, соответственно наклеенные на гайку 5 и помещенные в датчик 7.The device comprises a crankcase 1 with pins 2 mounted on it, a sleeve 3 and a cylinder head 4 mounted on pins with nuts 5, friction force measuring elements installed in the nuts, and a gas pressure measuring element associated with the combustion chamber. Moreover, the measuring elements are made in the form of strain gauges 6 and 7, for example, including the main 8 and compensation 9 strain gages, respectively glued to the nut 5 and placed in the sensor 7.
Тензорезисторы 8 и 9 каждого из датчиков включены в разные плечи полумостовой схемы и соединены с тензоусилителем 10 и шлейфовым осциллографом 11.The strain gauges 8 and 9 of each of the sensors are included in different shoulders of the half-bridge circuit and are connected to the strain gauge 10 and the loop oscilloscope 11.
Устройство работает следующим образом. При сгорании топлива в цилиндре тензометрические датчики 6 регистрируют де формацию шпильки 2, пропорциональную силам трения в цилиндропоршневой группе и силам давления газов в цилиндре. Одновременно тензометрический датчик 7 регист5 рирует силу давления газов в цилиндре. В полумостовой электрической схеме происходит вычитание этих сигналов, усиление и фиксация сигнала, пропорционального силе трения в цилиндропоршневой, группе.The device operates as follows. When fuel is burned in the cylinder, strain gauges 6 register the deformation of the pin 2, which is proportional to the friction forces in the piston-cylinder group and the gas pressure forces in the cylinder. At the same time, the strain gauge sensor 7 registers 5 the force of the gas pressure in the cylinder. In the half-bridge electrical circuit, these signals are subtracted, the signal is amplified and fixed proportional to the friction force in the cylinder-piston group.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU853915606A SU1268994A1 (en) | 1985-06-14 | 1985-06-14 | Device for measuring friction forces in cylinder-piston group of internal combustion engine with air cooling |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU853915606A SU1268994A1 (en) | 1985-06-14 | 1985-06-14 | Device for measuring friction forces in cylinder-piston group of internal combustion engine with air cooling |
Publications (1)
Publication Number | Publication Date |
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SU1268994A1 true SU1268994A1 (en) | 1986-11-07 |
Family
ID=21184376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU853915606A SU1268994A1 (en) | 1985-06-14 | 1985-06-14 | Device for measuring friction forces in cylinder-piston group of internal combustion engine with air cooling |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1268994A1 (en) |
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1985
- 1985-06-14 SU SU853915606A patent/SU1268994A1/en active
Non-Patent Citations (1)
Title |
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Рык Г. М., Тухман И. Я. Определение силы трени поршневой группы дизел с воздушным охлаждением.-Сб.: Двигатели внут реннего сгорани . Харьков: ХГУ им. А. М. Горького, 1980, вып. 31, с. 105-1 12. Авторское свидетельство СССР № 985736, кл. G 01 М 19/02, 1982. * |
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