Distributor

Interruption of the low voltage flow to the coil is made by contact breaker points in the distributor. This final piece of ignition equipment is mounted on the engine and driven by a spindle, or shaft, which is connected to a gear on the camshaft inside the engine. At the top of the spindle is a cam which, instead of being round, has “corners”, there being as many “corners” as there are sparking plugs. As the cam rotates, the “corners” cause the contact breaker points to open and close, thus giving the off-on effect needed by the coil.

The distributor also has another function, that is to distribute high- voltage electricity from the coil to each of the sparking plugs in turn. A rotor arm is fitted on top of the distributor cam. The rotor arm rotates with the cam, and in doing so contacts in turn the metal projections inside the distributor cap.

Each of these projections is connected to a sparking plug so that when the rotor arm contacts a projection, high-voltage electricity is passed to the plug concerned and a spark occurs at the electrodes.

4. Answer the questions:

1) What are the functions of the distributor?

2) Where is the distributor mounted?

3) How does the distributor distribute high-voltage electricity from the coil to each of the sparking plugs?

5.Translate into English:

1) Суміш, що складена з пару, пального та повітря, згорає у циліндрі.

2) Його улюблене хобі – водити машину.

3) Є три різні засоби приведення коліс до руху.

6. Choose the right form of the verb:

1) (changing, to change, changed ) the brake fluid regularly is recommended.

2) Depressing the clutch pedal (is disconnecting, has disconnected, disconnects) the engine from the transmission.

3) If you sit suddenly on a seat with springs in it, they (will absorb, had absorbed, are absorbed) your weight by compressing and then expand again (caused, causing, having caused) you to bounce upwards.

7. Translate into English:

1) Поршень перетворює зворотньо- поступовий рух у обертальний рух коленвалу.

2) Поршень перетворив зворотньо- поступовий рух у обертальний рух коленвалу.

3) Це поршень, який перетворює зворотньо- поступовий рух у обертальний рух коленвалу.

4) Поршень, який повинен перетворювати зворотньо – поступовий рух у обертальний рух колінвалу, ковзає по циліндру.

8.Choose the right form of the infinitive:

1) The ignition system enables the engine............and kept running.

to start,

to be started,

to have started,

to have been started

2) The purpose of the sparking plug is................the spark.

to make,

to be made,

to have made,

to have been made

3) The mixture................was rich.

to ignite,

to be ignited,

to have ignited,

to have been ignited