Compressor Crosshead and Distance Piece Components

Question 1

the large end of a connecting rod has a ________

Answer 1

shell

Question 2

T or F

a burr between the mating surfaces of the cylinder and distance piece can cause rod runout

Answer 2

True

Question 3

the distance piece serves what 4 purposes?

Answer 3

-prevents leaking gasses from pressurizing
-prevents oil from travelling to the compression cylinder
-allows access to packing and oil wipers
-provides access to the piston rod

Question 4

what basic style of distance piece does not affect rod runout?

Answer 4

an extra long distance piece with a baffle

Question 5

T or F

a bent flange on a distance piece does not affect rod run out

Answer 5

False

Question 6

T or F

crosshead with Schimmels shoes, provide for rod, run out adjustment in both the vertical and horizontal planes

Answer 6

False

Question 7

T or F

The purpose of performing a rod rental check is to ensure that the cylinder bore and crosshead centre lines are at the same level

Answer 7

True

Question 8

T or F

You take Rod run out readings through the distance, piece, access holes and perform them in both horizontal and vertical planes

Answer 8

True

Question 9

T or F

The purpose of the crosshead and guides is to make the packing seal efficiently on the piston rod

Answer 9

True

Question 10

T or F

The function of a connecting rod is to convert rotating motion to reciprocating motion

Answer 10

True

Question 11

T or F

All connecting roads are symmetrical, and thus impossible to install incorrectly

Answer 11

False