Современное автомобилестроение. Сахарова Н.С. - 38 стр.

UptoLike

ВУЗ: 

ОГУ | Оренбург

Составители: 

Рубрика: 

emits harmful substancesin larger
quantities when the engine is cold than
when it is warm. The exhaust emission
tests specified by law are usually run at
a temperature of about 20
0
C. But in
many countries, the temperature is
much lower during a large part of the
year. Saab has therefore developed a
climate-related emission control
system which has much more effective
performance than that specified by
law. By equipping the engine with an
electrically heated Lambda sensor and
carefully adapting the fuel and ignition
systems, Saab engineers have
succeeded in minimizing the content of
noxious substance in the exhaust gases.
двигатель, он является источником
вредных веществ в больших количествах
в случае холодного двигателя, чем
теплого. Тесты на эмиссире выхлопных
газов, принятые законом, обычно
действуют при температурах около 20
0
С.
Но во многих странах температура
гораздо ниже в течении большей части
года. Фирма Сааб разработала контроль
эмиссии выхлопных газов с учетом
климата; этот контроль эффективнее
того, который принят законодательно.
Инженерам Сааб удалось снизить
содержание вредных веществ в
выхлопных газах путём оснащения
двигателей сенсорами Ламбда и
тщательным подбором топлива и
системы зажигания.
Exercise 9. Make up a reverse translation of the last paragraph of the text in
written form.
Exercise 10. Answer the following questions to the text.
1) What do catalytic converters remove from the exhaust gases.
2) What substances are neutralized by the catalytic converter?
3) How are nitrogen oxides are formed?
4) What makes the active part of the catalytic converter?
5) Why must the fuel mixture be accurately controlled?
6) How is the fuel injection system controlled?
7) What is the function of closed fuel system?
8) Why only unleaded fuel must be used in cars equipped with a catalytic converter?
9) What is a climate-related emission control system?
Exercise 11. Translate the following abstract with the dictionary.
The parts of the catalytic converter.
The interior of the catalytic converter consists of a perforated core with a very
large area, exposed to the exhaust gases. The whole of this surface is coated with a
thin layer of precious metal principally platinum and rhodium. The precious metal
38
emits harmful substancesin larger           двигатель, он является источником
quantities when the engine is cold than     вредных веществ в больших количествах
when it is warm. The exhaust emission       в случае холодного двигателя, чем
tests specified by law are usually run at   теплого. Тесты на эмиссире выхлопных
a temperature of about 200C. But in         газов, принятые законом, обычно
many countries, the temperature is          действуют при температурах около 200С.
much lower during a large part of the       Но во многих странах температура
year. Saab has therefore developed a        гораздо ниже в течении большей части
climate-related      emission    control    года. Фирма Сааб разработала контроль
system which has much more effective        эмиссии выхлопных газов с учетом
performance than that specified by          климата; этот контроль эффективнее
law. By equipping the engine with an        того, который принят законодательно.
electrically heated Lambda sensor and       Инженерам Сааб удалось снизить
carefully adapting the fuel and ignition    содержание     вредных   веществ     в
systems,      Saab    engineers     have    выхлопных газах путём оснащения
succeeded in minimizing the content of      двигателей    сенсорами   Ламбда     и
noxious substance in the exhaust gases.     тщательным подбором топлива          и
                                            системы зажигания.




   Exercise 9. Make up a reverse translation of the last paragraph of the text in
written form.

     Exercise 10. Answer the following questions to the text.

     1)   What do catalytic converters remove from the exhaust gases.
     2)   What substances are neutralized by the catalytic converter?
     3)   How are nitrogen oxides are formed?
     4)   What makes the active part of the catalytic converter?
     5)   Why must the fuel mixture be accurately controlled?
     6)   How is the fuel injection system controlled?
     7)   What is the function of closed fuel system?
     8)   Why only unleaded fuel must be used in cars equipped with a catalytic converter?
     9)   What is a climate-related emission control system?

     Exercise 11. Translate the following abstract with the dictionary.

   The parts of the catalytic converter.
   The interior of the catalytic converter consists of a perforated core with a very
large area, exposed to the exhaust gases. The whole of this surface is coated with a
thin layer of precious metal principally platinum and rhodium. The precious metal

38

Страницы