Английский язык: Сборник текстов и упражнений для студентов специальности "Эксплуатация судовых энергетических установок". Писарева Л.П. - 54 стр.

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КамчатГТУ | Петропавловск-Камчатский

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the pistons crowns themselves are of cast steel and have a circular insert rib that carries the in-
ternal water cooling passages as well as provides additional support for the crown. No skirt is
employed and the internal ring is secured to the piston rod by studs, while heavier studs ar-
ranged at a greater radius from the rod centre, rigidly hold the piston crown to the rod.
The cylinder cover houses a central fuel valve, relief valve, air-start valve and three cage-
mounted exhaust valves; also a single push rod operates one exhaust valve while the outer
forks each control another valve through smaller auxiliary rocker arms.
The UECD engines operates on the uniflow scavenge principle where charge air is admit-
ted through ports at the lower end of the cylinder liner and the exhaust gases are expelled from
the cylinder through three valves arranged in the cylinder cover. The air is supplied to the cy-
linder by turbochargers of Mitsubishi's unique non-water-cooled design.
Words to be memorized
uniflow scavenge прямоточная продувка
support поддерживать
sealed запечатано
rib фланец; ребро
as well as так же как и
piston rod шток поршня
stud шпилька
relieve valve перепускной клапан
outer fork внешняя вилка
push rod толкатель
to admit выпускать, допускать
insert вкладыш, прокладка
запрессованная деталь
Exercises
I. Read the text and say what you have learnt from it about.
1. the engine's main particulars;
2. the piston;
3. cylinder cover;
4. scavenge principle.
II. Work in pairs. Ask each other as many questions as you can about the M's engine.
III. Look through the text again and describe the advantage of the engine design.
IV. Write down the sentences containing the important information you've got from
the text.
Lesson 23
Two- Stage Turbocharged Engine
One of the most technically interesting engines is the Fuji type 6MD 26 X engine which
develops 350 bhp/cyl with a bore and stroke of 260 mm and 320 mm, utilizing a two- stage tur-
bo- charging system. This unit can be compared with the slightly large bore SEMT- Pielstick PA
54
the pistons crowns themselves are of cast steel and have a circular insert rib that carries the in-
ternal water cooling passages as well as provides additional support for the crown. No skirt is
employed and the internal ring is secured to the piston rod by studs, while heavier studs ar-
ranged at a greater radius from the rod centre, rigidly hold the piston crown to the rod.
      The cylinder cover houses a central fuel valve, relief valve, air-start valve and three cage-
mounted exhaust valves; also a single push rod operates one exhaust valve while the outer
forks each control another valve through smaller auxiliary rocker arms.
      The UECD engines operates on the uniflow scavenge principle where charge air is admit-
ted through ports at the lower end of the cylinder liner and the exhaust gases are expelled from
the cylinder through three valves arranged in the cylinder cover. The air is supplied to the cy-
linder by turbochargers of Mitsubishi's unique non-water-cooled design.


                                    Words to be memorized

      uniflow scavenge                               прямоточная продувка
      support                                        поддерживать
      sealed                                         запечатано
      rib                                            фланец; ребро
      as well as                                     так же как и
      piston rod                                     шток поршня
      stud                                           шпилька
      relieve valve                                  перепускной клапан
      outer fork                                     внешняя вилка
      push rod                                       толкатель
      to admit                                       выпускать, допускать
      insert                                         вкладыш, прокладка
                                                     запрессованная деталь


                                            Exercises

     I. Read the text and say what you have learnt from it about.
     1. the engine's main particulars;
     2. the piston;
     3. cylinder cover;
     4. scavenge principle.

      II. Work in pairs. Ask each other as many questions as you can about the M's engine.

      III. Look through the text again and describe the advantage of the engine design.

      IV. Write down the sentences containing the important information you've got from
the text.



                                         Lesson 23
                              Two- Stage Turbocharged Engine

      One of the most technically interesting engines is the Fuji type 6MD 26 X engine which
develops 350 bhp/cyl with a bore and stroke of 260 mm and 320 mm, utilizing a two- stage tur-
bo- charging system. This unit can be compared with the slightly large bore SEMT- Pielstick PA
                                                54

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