Английский язык: Сборник текстов и упражнений для студентов специальности "Эксплуатация судовых энергетических установок". Писарева Л.П. - 47 стр.

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a poppet valve подъемный клапан
to be centrally arranged располагаться строго по центру
a rigid longitudinal girder жесткая продольная балка
to be lined with облицовывать
a cam кулачок
a roller ролик
a roller guide направляющий ролика
push rod толкатель (клапана)
rocker коромысло (клапана)
piston crown головка (днище) поршня
piston skirt юбка поршня
forced lubrication смазка под давлением
fluctuating pressure пульсирующее давление
VIII. Give a short summary of the engine of B & W construction.
Lesson 19
The New Four-stroke Diesel Engine Type 65/65 is a Common Development
from M.A.N. and Sulzer Brothers Design Features
The engine can burn heavy fuel and will be built as a reversible and nonreversible prime
mover.
The engine frame consists of a crankcase of fabricated design and cast cylinder blocks. The
demand that the cast components must be of limited weight and volume to simplify the casting
procedure and that the crankcase must be built in one-piece had a great influence on the design.
Crankcase.
The main bearings of the crankshaft are located in the cast steel cross girders which are
welded into crankcase. These results in a favourable flow of the ignition forces. By using suit-
able devices, the dismantling and fitting of the bearing can be carried out easily.
The camshaft drive which is situated on the coupling side, is integrated into the crank-
case. The gear wheels have a long service life due to the shift and vibration-free seatings. The
torsional vibration damper fitted on the crankshaft on the opposite side of the coupling is lo-
cated within the crankcase. Large openings in the crankcase guarantee good accessibility to the
moving parts and bearings.
Cylinder block.
The row of cylinder blocks made of cast iron are very resistant to corrosion. For all cy-
linder numbers the rows of cylinder blocks are of three sections with end pieces for two cylind-
ers each at the aft and forward side. The rods which are parallel to the cylinder axis relieve the
castings of tensile stresses. The cylinder blocks and sections are built as stiff brackets, so that
the turbochargers can be mounted on the coupling side or on its opposite.
Technical data are as follows:
Bore …………………………….. 650 mm
Stroke …………………………… 650 mm
Piston displacement …………….. 216 lit/cyl
Output ……………………………1600 bhp/cyl (1180 kw/cyl)
Speed ……………………………. 375 rpm
Mean piston speed ……………… 8,12 m/s
Mean effective piston pressure … 17, 8 kg/cm
2
(17, 5 bar).
47
      a poppet valve                                 подъемный клапан
      to be centrally arranged                       располагаться строго по центру
      a rigid longitudinal girder                    жесткая продольная балка
      to be lined with                               облицовывать
      a cam                                          кулачок
      a roller                                       ролик
      a roller guide                                 направляющий ролика
      push rod                                       толкатель (клапана)
      rocker                                         коромысло (клапана)
      piston crown                                   головка (днище) поршня
      piston skirt                                   юбка поршня
      forced lubrication                             смазка под давлением
      fluctuating pressure                           пульсирующее давление

      VIII.    Give a short summary of the engine of B & W construction.




                                      Lesson 19
        The New Four-stroke Diesel Engine Type 65/65 is a Common Development
                  from M.A.N. and Sulzer Brothers Design Features

      The engine can burn heavy fuel and will be built as a reversible and nonreversible prime
mover.
      The engine frame consists of a crankcase of fabricated design and cast cylinder blocks. The
demand that the cast components must be of limited weight and volume to simplify the casting
procedure and that the crankcase must be built in one-piece had a great influence on the design.
      Crankcase.
      The main bearings of the crankshaft are located in the cast steel cross girders which are
welded into crankcase. These results in a favourable flow of the ignition forces. By using suit-
able devices, the dismantling and fitting of the bearing can be carried out easily.
      The camshaft drive which is situated on the coupling side, is integrated into the crank-
case. The gear wheels have a long service life due to the shift and vibration-free seatings. The
torsional vibration damper fitted on the crankshaft on the opposite side of the coupling is lo-
cated within the crankcase. Large openings in the crankcase guarantee good accessibility to the
moving parts and bearings.
      Cylinder block.
      The row of cylinder blocks made of cast iron are very resistant to corrosion. For all cy-
linder numbers the rows of cylinder blocks are of three sections with end pieces for two cylind-
ers each at the aft and forward side. The rods which are parallel to the cylinder axis relieve the
castings of tensile stresses. The cylinder blocks and sections are built as stiff brackets, so that
the turbochargers can be mounted on the coupling side or on its opposite.

      Technical data are as follows:
      Bore …………………………….. 650 mm
      Stroke …………………………… 650 mm
      Piston displacement …………….. 216 lit/cyl
      Output ……………………………1600 bhp/cyl (1180 kw/cyl)
      Speed ……………………………. 375 rpm
      Mean piston speed ……………… 8,12 m/s
      Mean effective piston pressure … 17, 8 kg/cm2 (17, 5 bar).

                                                47

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