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US 2022/0034744 A1Published application
Contamination test rig
AssigneeROLLS-ROYCE plc
InventorsEmily Holdmeyer, Bruce Crook
Life of this patent
Estimating the term…
Abstract
System and methods are provided for a contamination test rig that includes a particle injection chamber including a pressure chamber, wherein a hopper, scale, and feeder are inside of the particle injection chamber, and wherein the test valve is disposed in a valve line that runs parallel to a by-pass line. A by-pass valve permits at least a portion of a mixture of air and contaminate particles to flow through the by-pass line instead of through the valve line when the by-pass valve is open, and prevents the mixture of air and contaminate particles from flowing through the by-pass line when closed.
Claims20
A contamination test rig for testing a test valve, the contamination test rig comprising:
- a mix line;
- an air source configured to provide a flow of air to the mix line;
- a particle injection chamber downstream of the air source, wherein the particle injection chamber includes a pressure chamber, the particle injection chamber comprising
- a draft tube having an opening, wherein the draft tube forms a portion of the mix line, wherein the draft tube is disposed in the particle injection chamber and is configured to guide the flow of air through the particle injection chamber and to receive a plurality of contaminate particles through the opening, and
- a blade configured to push the contaminate particles through the opening of the mix line into the flow of air;
- a valve line disposed downstream of the particle injection chamber, the valve line configured to receive a mixture of air and the contaminate particles from the particle injection chamber and to supply the mixture of air to the test valve if the test valve is coupled to the valve line;
- a by-pass line arranged in parallel with the valve line;
- and
- a by-pass valve configured to permit at least a portion of the mixture of air and contaminate particles to flow through the by-pass line instead of through the valve line when the by-pass valve is open, and to prevent the mixture of air and contaminate particles from flowing through the by-pass line when closed.
6 more elements
A contamination test rig for testing a component that gas flows through, the contamination test rig comprising:
- an air source, configured to supply a flow of air to a heated line and a flow of air to a mix line;
- a particle injection chamber included in the mix line, wherein the particle injection chamber includes a pressure chamber, the particle injection chamber comprising
- a draft tube, wherein the draft tube forms a portion of the mix line, the draft tube having an opening, the draft tube configured to guide the flow of air through the particle injection chamber and to receive a plurality of contaminate particles through the opening,
- a hopper,
- a blade, wherein the blade and the hopper are disposed within the particle injection chamber, and wherein the blade is configured to push contaminate particles through the opening of the draft tube into the flow of air in the mix line, and
- a scale;
- a junction disposed downstream of the particle injection chamber, wherein the heated line and the mix line merge at the junction;
- a valve line disposed downstream of the junction, the valve line configured to receive a mixture of air and the contaminate particles from the particle injection chamber and to supply the mixture to the component if the component is coupled to the valve line;
- a by-pass line arranged in parallel with the valve line;
- and
- a by-pass valve configured to permit at least a portion of the mixture of air and contaminate particles to flow through the by-pass line instead of through the valve line when the by-pass valve is open, and to prevent the mixture of air and contaminate particles from flowing through the by-pass line when closed.
8 more elements
A method for testing a test valve, the method comprising:
- supplying a flow of air to a mix line of a contamination test rig from an air source;
- supplying the flow of air to a particle injection chamber via the mix line, wherein the particle injection chamber includes a pressure chamber;
- pushing contaminate particles through an opening of the mix line into the mix line, wherein the contaminate particles are pushed by a blade, wherein the opening of the mix line is inside of the particle injection chamber, wherein the mix line and the particle injection chamber are at substantially the same pressure;
- supplying a mixture of air and the contaminate particles from the particle injection chamber to a valve line, wherein the mixture is supplied to a test valve if the test valve is coupled to the valve line;
- permitting at least a portion of the mixture of air and contaminate particles to flow through a by-pass line arranged in parallel with the valve line by opening a by-pass valve;
- and
- preventing the mixture of air and contaminate particles from flowing through the by-pass line by closing the by-pass valve.
4 more elements
Dependencies are inferred from the claim text.