Why is the compressor positioned using the second-to-last bearing shell (the front bearing shell)?

2011-10-13View Original

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Why is the compressor positioned using the second-to-last bearing shell (the front bearing shell)?

Reply #22011-10-14

I have a question: why do 2D compressors require three shaft bearings, with the latter two being placed very close to each other, using the middle bearing as a reference point for positioning? It’s designed with two tiles; can’t it be positioned using the last tile? ? ? I’ve been wondering!

Reply #32011-10-14

It hasn’t been opened; I don’t understand. . . . . . . Do you have the drawings?

Reply #42011-10-17

Being close to the flywheel is necessary in order to withstand the inertial forces and weight generated by the flywheel. The positioning in the middle takes into account the expansion of the crankshaft as well as the perpendicularity between the crankshaft and the piston rods of the crosshead

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