|
|
Valves
Piston compressors can be generally classified by the type of valve, and it depends on the size, with a small amount of work requires a relatively small input and output gas port. Small compressors have a spring steel plate valves on the inlet and outlet located on the valve plate at different pressures to keep separate cylinder head (Fig. 4.8). Above the hole, about 80 mm, on the territory of the port, available under the head size is insufficient for both intake and exhaust valves, and at the entrance to moving the piston or ring around the head. The socket or the exhaust valve remains in the Central part of the cylinder head. In most makes, both types of piston rings round the gas ports and did so in a round shape and typically referred to as a ring plate valves (Fig. 4.9). Ring plate valves are made of a thin spring steel or titanium limited to the Elevator and, frankly, light sources, to help even closing and reducing Bouncing.
Although intended for the treatment of only dry gas, liquid droplets, coolant or oil can sometimes enter the cylinder and have to go through a pressure valve.
Large compressors with rings, valves, they can be organized on the spring-loaded head, which will lift and relieve excess pressure.
Valve and cylinder head design is very much influenced by the need to save the volume to a minimum. In valve design that achieves a small amount of skin uses a tapered exhaust valve in the center of the cylinder head with a ring-shaped valve suction surrounding it (Fig. 4.10). Suction gas flows through the passages in 'sandwich' valve plate. The piston has a small raised spigot, which is located inside the ring-shaped valve suction. When conical outlet valve lifts, high pressure gas enters the cylinder head. This design is used in compressor holes with diameter up to 75 mm
 ....
|
....