Capacity reduction

Multi-cylinder machines will reduce work-working volume, taking cylinders from service blocked the intake valve-lifting mechanisms. With the blocked suction method, one or more of the cylinder heads include wheels pressure valve, which closes off gas suction cylinder head. On Fig. 4.11(a) normal (full power) in position with de-energized solenoid valve. Gas pressure through equalized piston and piston is in the open position spring. When the solenoid valve is energized, the needle valve seats on the upper port and unloading of the piston chamber under pressure discharge pressure discharge port. The difference between the discharge and suction pressure forces the piston down, seal suction valve plate, thus preventing the entrance of dust and vapours in the light cylinder.

Valve lifting method is used with a ring plate valves. Ring stove bottom valve, which is located on the top, available liner can be solved with the help of various alternative mechanical systems created by oil pressure and is controlled by a solenoid valve. As a rule, piston rings works traction on the head. The use of these methods allows multi-cylinder machines, cylinders or cylinder banks unloaded for capacity reduction. In addition, facilitating the start-up can be arranged so that the starting current is reduced, and the build-up of oil pressure occurs before the car is fully loaded.

Fewer machines can be through a bypass valve suction and discharge valves per cylinder or variable clearance pocket in the head itself. The volume can be reduced to an external bypass pipeline.

Rotation speed can be reduced by two-speed electric motors or use an inverter, which provides a variable frequency signal to change the speed of the engine. The lowest speed is usually dictated by the built-in system of greasing.

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