Accessing a valve assembly of a turbomachine
AssigneeUnited Technologies Corporation
InventorsTodd A. Davis, Joanna Mamrowicz
Life of this patent
Estimating the term…
Abstract
An example method of accessing a valve assembly of a turbomachine includes accessing a check valve of the valve assembly from a first position that is radially outside a flow path through the turbomachine. The method accessing a shut off valve of the valve assembly from a second position that is radially outside the flow path. The check valve and the shut off valve are configured to influence communication of lubricant along a lubricant communication path that extends between a location radially outboard the flow path and a location radially inboard the flow path. The first position is the same as the second position in some examples.
Claims8
A gas turbine comprising:
- an intermediate case comprising a flow path between a radially inner wall and a radially outer wall;
- a strut having a radial bore;
- said strut extending from said radially outer wall to said radially inner wall and positioned between a low pressure compressor and a high pressure compressor;
- a contiguous lubricant-communication path partially extending through said radial bore and comprising:
- a positioning rod, a check valve, and a shut off valve;
- said positioning rod having a longitudinal positioning-rod bore, a first terminus, and a second terminus;
- a valve-positioning assembly comprising:
- said check valve mounted to said first terminus,
- said shut-off valve mounted to said second terminus,
- wherein said check valve and said positioning rod are inserted in said radial bore.
A method of servicing a valve-positioning assembly of a gas turbine engine comprising an intermediate case comprising a flow path between a radially inner wall and a radially outer wall, the method comprising:
- providing a strut having a radial bore;
- extending said strut from said radially outer wall to said radially inner wall and positioning said strut between a low pressure compressor and a high pressure compressor;
- providing a contiguous lubricant-communication path partially extending through said radial bore that comprises:
- a positioning rod, a check valve, and a shut off valve;
- wherein said positioning rod has a longitudinal positioning-rod bore, a first terminus, and a second terminus;
- providing a valve-positioning assembly comprising:
- said check valve mounted to said first terminus,
- said shut-off valve mounted to said second terminus,
- wherein said check valve and said positioning rod are inserted in said radial bore;
- and
- removing said valve-positioning assembly from said radial bore;
- and
- repairing or replacing said valve-positioning assembly, or repairing and replacing said valve-positioning assembly.
Dependencies are inferred from the claim text.