Cylinder liner retention system

摘要

Apparatus and method for aligning and securing a cylinder liner 3 to a reciprocating pump. The apparatus typically comprises four arrangements 20 positioned around the liner. Each arrangement comprises a housing 7 and a clamping lug 13. The housing includes a piston 8 having a stem 11 which extends through a bore in the lug and terminates in a bolt 12. The lug is rotatable about the stem to selectively engage the cylinder liner. The piston is hydraulically operated to move away from the pumping module 2 to allow rotation of the lug to engage the liner, removal of the hydraulic pressure on the piston allows the piston to be biased towards the pumping module by elastic member 10 causing the lug to forcibly compel the cylinder liner towards the pumping module.