Lubrication System
Force type lubrication is used for the medium and heavy-duty compressor. The main
component of the force type lubrication is the main oil pump, dual oil filter, lube
oil cooler, pressure regulating valve, lube oil tank and its associated accessories.
Splash type lubrication is used for the small compressor(up to 100kW). This type of
system lubricating oil by the splashing of crank-throw moving through the lubricant
in the sump.
If rod packing cooling needed, the stuffing box is jacketed for liquid coolant.
Reciprocating Compressor Basics Components
Backup Ring支承环
The construction of the backup ring is similar to the radial ring. As the name
indicate this type of ring is used to backup all the rings when using in the high-
pressure application.
The compressor can use narrow piston, due to the use of narrow piston larger valve area for greater efficiency.
Connecting Rod连杆
Purpose of the connecting rod is to connect the crankshaft and the crosshead. The
connecting rod converts the rotary motion into reciprocating motion. The connecting
rod bolts and nuts shall be securely locked with cotter pins or wire after assembly.
Like Crankshafts, the connecting rod has drilled hole for oil passage.
For a horizontally mounted cylinder, along with piston rings, an additional ring called wear band or rider ring is used to lower the wear between cylinder and piston.