Patent ID: 9556747
Date: 2017-01-31
CPC Classifications: F01D,F05D,Y10T

Claim:
1. A method for retrofitting a turbomachine by replacing a first trip cup of the turbomachine with a second trip cup, the first trip cup including a throw-out arm connected to a first trip cup spring, and the second trip cup including a plunger disposed in a hole defined by the second trip cup and a plunger spring encircling the plunger in the hole, the method comprising: removing the first trip cup from the turbomachine, the turbomachine comprising a trip paddle; installing the second trip cup in the turbomachine such that a location of the plunger in the turbomachine is the same as a location of the throw-out arm in the turbomachine when the first trip cup was installed on the turbomachine; and adjusting a tension in the plunger spring such that, when a speed of the turbomachine exceeds a predetermined value, the plunger actuates the trip paddle located adjacent the second trip cup.