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Seal problems, conditions, and likely causes.One of the newer technologies involves twin screw compressors. Hp Deskjet D1350 Driver Download here. This article will look at service-related aspects of such a unit. The screw compressor is a positive-displacement rotary mach-ine. Compression is achieved by two intermeshing rotors housed in a suitable casing. The “male” rotor has four lobes of unsymmetrical profile sections formed helically along the rotor length. These mesh with the six corresponding flutes on the “female” rotor.

As the rotors turn, gas is drawn through the inlet port to fill the space between adjacent lobes. When the interlobe space along the rotor length is filled, the rotation of the rotors moves the end of the lobes past the inlet port sealing the interlobe space. As the rotors continue to rotate, the intermeshing of the lobes on the discharge side of the compressor progressively reduces the space occupied by the gas, causing compression. Compression continues until the interlobe space becomes exposed to the outlet port in the casing and gas is discharged. Lubricating oil is injected into the compression chamber in most applications to absorb most of the heat of compression and to seal the running clearances between the rotors, enabling the machine to operate at high pressure ratios in a single stage.