4. .
Friction device, clutch, gearbox, to free, to start, to release, flywheel, pressure plate, basic principle of operation, to fix, hard-wearing material, to consist of, to be controlled by, running engine, to run idly, to engage, to disengage, to press down, to be at rest.
5. :
1.What device is the clutch?
2.What units does it connect?
3.What is the clutch used for?
4.Where is the clutch placed?
5.What plates does the clutch consist of?
6.What is the basic principal operation of the clutch?
7.What is the clutch controlled by?
8.What takes place when the clutch pedal is at rest?
9.When does the engine run idly?
6. , .
1. The clutch is a device connecting....
a).the rear axle and axle shafts.
b).the gearbox and differential.
c).the engine and the gearbox.
2.The clutch is situated between....
a).the gearbox and cardan shaft.
b).the flywheel and the gearbox.
c).the gearbox and rear axle.
3.The clutch is controlled by....
a). the brake pedal
b). the clutch pedal.
c).the gearbox and rear axle.
4.The clutch is engaged....
a).when the clutch pedal is pressed down.
b).when the clutch pedal is at rest.
5.The clutch is disengaged....
a).when the clutch pedal is at rest.
b).when the clutch pedal is pressed down.
7. .
DIALOGUE
A.: What is the function of the clutch?
.: You see, it serves three functions. It is used for freeing the engine from the gearbox, for starting the car and for freeing the engine from car wheels.
A.: Is it a friction device?
.: Yes, of course. It is fixed between the flywheel of the engine and
the gearbox and usually consists of two discs.
A.: What discs?
.: The friction disc (driven disc) and the pressure disc.
A.: I suppose the principle of operation of clutches is a frictional
force between discs. Am I right?
.: Yes, you are. When the clutch is fully engaged the frictional force makes discs rotate at the same speed.
A.: And by what is the clutch controlled?
B:. By the clutch pedal. When it is at rest the clutch is engaged and when it is pressed down the clutch is disengaged and the engine is disconnected from the car wheels.
A.: Thank you. And what types of clutches do you know?
B.: Positive clutches and gradual engagement clutches.
A.: Thank you very much for your information.
B.: Not at all. Glad to help you.
8. .
, , , () , , , , , .
9. .
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10. .
11. .
12. .
| 1. | a friction device | a. | |
| 2. | gearbox | b. | |
| 3. | to start the car | c. | |
| 4. | to release the engine | d. | |
| 5. | is fixed | e. | |
| 6. | flywheel | f. | |
| 7. | the friction disc | g. | |
| 8. | the pressure disc | h. | |
| 9. | hard-wearing material | i. | |
| 10. | frictional force | j. | |
| 11. | the clutch pedal | k. | |
| 12. | to be engaged | l. | |
| 13. | to be at rest | m. | |
| 14. | to be disengaged | n. | |
| 15. | to press down on the pedal | o. | |
| 16. | to run idly | p. | |
13. , , .
A.:What three functions does the clutch...?
B.:It is used for....
A.:Where is it...?
B.:It is... between the flywheel of the engine and the....
A.:By what is the clutch...?
B.:It is...by the....
A.: What takes place when the pedal is...?
B.: The clutch is....
A.: And when the driver pushes down on the pedal?
B.: The clutch is....
freeing the engine from the gearbox, serve, fixed, gearbox, controlled, starting the car, freeing the engine from the car wheels, pedal, at rest, engaged, disengaged, do, located.
14. .
1. .
2. .
3. .
4. , : .
5. .
6. , .
7. , , .
be at rest -
( )
car wheels -
clutch -
clutch pedal
connect
control
disconnect
disengage -
engage
fix ,
flywheel
friction plate (disc) - () () frictional force
gear ;
gearbox
hard-wearing material
press down the pedal -
pressure plate (disc) - ()
principle of operation
release
run idly-
running engine
Unit Seven
Text: Gearbox
Dialogue
