Английский язык: Сборник текстов и упражнений для студентов специальности "Эксплуатация судовых энергетических установок". Писарева Л.П. - 44 стр.

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КамчатГТУ | Петропавловск-Камчатский

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The increasing use of forged and cast steel pistons seems to have increased the propor-
tion of ring- slot jobs. Wear of ring grooves is particularly rapid when the cylinder liner is bad-
ly worn. Liner wear is never uniform throughout the length of the cylinder bore, and as the pis-
ton travels back and forth a «breathing» effect is produced on the rings by the varying diameter
of the bore that tends to wear away the side of the ring grooves in a lathe and fitting oversize
rings, but if it is desired to retain standard size rings, the walls of the slots are cut back and then
built up by welding, after which they can be machined to original dimensions.
Words to be remembered
casualties потери
carbon углерод
accumulation ссопление
encounter сталкиваться
occasionally внезапно, случайно
due to из-за
result from происходить в результате
suffer страдать
skilfully искусно
studding соединение шпильками
bottom face поверхность днища
bore out расточить
thread резьба, нарезать резьбу
screw into ввинтить
machine механически обработать
plug пробка, заглушка, закупоривать, затыкать
отверстие
refinish отшлифовать заново
scored шероховатый, с задирами
torsional крутящий
ring slot паз (для кольца)
circumferential кольцевой, периферический
fracture фрагмент
groove канавка
true up регулировать, выверять
forged кованый
Exercises
I. Read the text and say what you have learned from it about.
1. The cause of liners cracking;
2. The method of cylinder heads repair;
3. The troubles of the crankshafts;
4. The troubles of pistons.
II. Work in pairs.
Ask each other as many questions as you can about engine parts troubles and repair.
While answering begin with- To my wind …, as I know …, I think …, I am sure that ….
III. Look through the text again and pick out the key sentences of each part.
IV. Give a short summary of the text.
44
       The increasing use of forged and cast steel pistons seems to have increased the propor-
tion of ring- slot jobs. Wear of ring grooves is particularly rapid when the cylinder liner is bad-
ly worn. Liner wear is never uniform throughout the length of the cylinder bore, and as the pis-
ton travels back and forth a «breathing» effect is produced on the rings by the varying diameter
of the bore that tends to wear away the side of the ring grooves in a lathe and fitting oversize
rings, but if it is desired to retain standard size rings, the walls of the slots are cut back and then
built up by welding, after which they can be machined to original dimensions.


                                    Words to be remembered

      casualties                               потери
      carbon                                   углерод
      accumulation                             ссопление
      encounter                                сталкиваться
      occasionally                             внезапно, случайно
      due to                                   из-за
      result from                              происходить в результате
      suffer                                   страдать
      skilfully                                искусно
      studding                                 соединение шпильками
      bottom face                              поверхность днища
      bore out                                 расточить
      thread                                   резьба, нарезать резьбу
      screw into                               ввинтить
      machine                                  механически обработать
      plug                                     пробка, заглушка, закупоривать, затыкать
                                               отверстие
      refinish                                 отшлифовать заново
      scored                                   шероховатый, с задирами
      torsional                                крутящий
      ring slot                                паз (для кольца)
      circumferential                          кольцевой, периферический
      fracture                                 фрагмент
      groove                                   канавка
      true up                                  регулировать, выверять
      forged                                   кованый

                                              Exercises

      I. Read the text and say what you have learned from it about.
      1. The cause of liners cracking;
      2. The method of cylinder heads repair;
      3. The troubles of the crankshafts;
      4. The troubles of pistons.

      II. Work in pairs.
      Ask each other as many questions as you can about engine parts troubles and repair.
      While answering begin with- To my wind …, as I know …, I think …, I am sure that ….

      III. Look through the text again and pick out the key sentences of each part.

      IV. Give a short summary of the text.
                                                  44

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