1. Read and remember the words. Mind the pronunciation.

   bedplate	–	фундаментная рама
   to ensure	–	обеспечивать
   surface	–	поверхность
   cast iron	–	чугун
   to support	–	поддерживать
   cylinder head	–	головка цилиндра
   jacket	–	рубашка
   to utilize	–	использовать
   bore	–	внутренний диаметр отверстия
   to circulate	–	циркулировать
   to conduct	–	проводить, служить проводником
   main bearings	–	главные подшипники
   resistant	–	стойкий
   to provide	–	снабжать
   entire	–	весь, целый
   to accommodate	–	вмещать, помещать
   cooling water	–	охлаждающая вода
   liner	–	втулка
   seat	–	гнездо
   shell	–	вкладыш
   consist (of)	–	состоять (из)
   cap	–	крышка
   to secure	–	крепить, обеспечивать
   frame	–	рама, станина
   set	–	комплект, ряд

2. Read and translate the text. Essential Parts of a Diesel Engine.

Major Fixed Parts

Bedplate. The bedplate of an engine is the part which holds the entire en­gine and upon which other parts are built. The bedplate has two important du­ties to perform. First, to carry frame of the engine upon which the cylin­ders are carried, and second, to carry the main bearings which support the crankshaft.

Frame. The frame is a cast iron structure resting on the planed upper surface of the bedplate and provided with openings at the top to receive the cylinders.

Cylinder. The cylinder consists of two separate parts, the outer part, being the stress carrying member, known as the jacket, while the inner part is a heat conducting member, known as the liner. The space between the two is utilized for circulating cooling water, to carry off the heat of combustion.

The cylinder must be strong enough to carry the stress produced by the gas pressure between the piston and the cylinder head.

Cylinder liner. The liner is a comparatively thin cylinder, flanged at the upper end and slightly thickened at its lower end. The bore is carefully finished to ensure perfect roundness and uniform diameter.

Cylinder head. The cylinder head is one of the most important details of the engine as it is a heavily stressed and heat conducting member. It closes the top end of the cylinder and accommodates the valves.

Main bearings. The main bearings are accommodated in the seats of the bedplate. The principal details of a bearing are: a steel cap, upper and lower shells, a set of adjusting shims and screw-jacks to secure the caps and the shell to the bedplate. The babbit-lined shells are made of steel and consist of two halves.