Development of universal device for determining the needle stroke in diesel and marine diesel sprayers
The main malfunctions of diesel and marine diesel injectors with an increase in the needle stroke by more than 50 % of the standard value are described — an increase in the temperature of the nozzle of the sprayer, a breakthrough of cylinder gases into the cavity of the sprayer and the formatio...
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| Main Author: | |
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| Format: | Article |
| Language: | English |
| Published: |
Omsk State Technical University, Federal State Autonoumos Educational Institution of Higher Education
2022-02-01
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| Series: | Омский научный вестник |
| Subjects: | |
| Online Access: | https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2022/%E2%84%96%201%20(181)%20(%D0%9E%D0%9D%D0%92)/13-18%20%D0%92%D0%BE%D0%BB%D0%BA%D0%BE%D0%B2%D0%B0%20%D0%9B.%20%D0%AE..pdf |
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| Summary: | The main malfunctions of diesel and marine diesel
injectors with an increase in the needle stroke by more
than 50 % of the standard value are described — an
increase in the temperature of the nozzle of the sprayer,
a breakthrough of cylinder gases into the cavity of the
sprayer and the formation of coke, a decrease in the
pressure of the injected fuel. A method is proposed
for determining the maximum stroke of the needle
by measuring the length of the needle shank and its
conditional reduction when the needle is placed on the
saddle. The device and the principle of operation of
the device for determining the maximum stroke of the
spray needle are shown. Drawings of the main parts
of the universal device for determining the needle
stroke of sprayers with a diameter from 8 to 18 mm of
diesel and marine diesel engines have been developed,
a prototype is made. The method of determining the motion (stroke) of the needle of the spray nozzles of
diesel engines using the developed device is given. |
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| ISSN: | 1813-8225 2541-7541 |