Английский язык. Писарева Л.П. - 9 стр.

      forced lubrication                     смазка под давлением
      fluctuating pressure                   пульсирующее давление

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


                                     ВАРИАНТ II

       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 suitable 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
crankcase. 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 located 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 cylinder numbers the rows of cylinder blocks are of three sections with end pieces
for two cylinders 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)

                       Words and expressions to be remembered:

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