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Методичка 3 курс механики новая.docx
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  1. Match the following phrases.

    cylinder dimensions

    охлаждение по внутреннему диаметру

    power range

    хромированный

    combustion space components

    импульсный турбонаддув

    valve cage

    переборка, ремонт

    load-dependent

    диапазон, мощность

    single-pipe exhaust system

    части камеры сгорания

    overhaul

    зависимый от нагрузки

    bore cooling

    кожух клапана

    chromium plated

    размеры цилиндра

    pulse system turbocharging

    система выхлопа с одним патрубком

  2. Give English equivalents.

Переборка клапана, непрерывная работа, наддув, вращающийся пор­шень, выработка электричества, развивать мощность, среднеоборотный двигатель, износ, головка цилиндра, тяжелое топливо, вязкость, канавка, замеры, эксплуатация, указывать, преимущества, система постоянного давления.

  1. Arrange the words according to the parts of speech.

To maintain, simplicity, reasonable, plated, combination, to indicate, com­bined, dimension, successful, fully, turbocharging, heavy, capability, possible, giving, feature.

  1. Translate the sentences paying attention to gerunds.

  1. In starting an engine pay attention to the functioning of its parts.

  2. This engine is a standard turbocharged crosshead unit arranged for run­ning on heavy oils.

  3. Water used for cooling engines should meet fixed requirements.

  4. This ship has two diesel engines for driving propellers.

  5. That handle is provided for starting and stopping the engine.

  6. Combustion is the process of uniting fuel with the oxygen of the air.

  7. We are sure of their having completed testing the engine.

Unit 7

Volvo Penta’s New d12 Marine Diesel Engine

Part I

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

    to develop

    развивать

    to increase

    увеличивать

    emission

    выброс

    to reduce

    уменьшать, сокращать

    fuel consumption

    расход топлива

    application

    применение

    in-line

    в одну линию

    output

    мощность

    feature

    черта

    rigidity

    жесткость

    robust

    прочный

    unit

    установка, агрегат

  2. Read and translate the text.

Volvo Penta’s new D12 marine diesel engine is reported to be unique in every respect - unit-injectors, a new EDC system8, a redesigned cylinder block and a crankshaft with seven main bearings for greater rigidity. All these contribute to increased power with lower emissions and reduced fuel consump­tion compared with the previous models.

The new D12 is a 12-liter, in-line cylinder power unit with 4 valves per cyl­inder designed to offer high performance for smaller commercial vessels. The en­gine comes in two versions for commercial applications: the D12-650 develop­ing 650 hp (478 kW) and the D12-615 with an output of 615 hp (453 kW). Both versions have the same displacement.

The unit injectors inject the fuel into the cylinder at 1800 bar through eight hole nozzles. This combined with the new EDC system gives very efficient combustion.

Five sensors constantly communicate data to the EDC system and this is engineered to be so precise that any variations in torque created by individual cylinders can be compensated for immediately.

The engine is built robustly. It produces very little vibration and noise. The company has deliberately added weight to reduce vibration and noise with features like the vibration damper9 on the camshaft and a ladder-frame10 cylinder block.