Low Pressure Compressor Analysis

Section I: Rotor Analysis

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Rotor Axial DimensionsZero Reference from Suction End of Rotor to all Impeller Faces

View Reference: Side View

Suction End

Rotor Diameter DimensionsDiameters in Relationship to themselves

View Reference: Side View

Suction End

Section II: Case Analysis

Lower Case Split-Line FlatnessFlatness of Split-Line to Itself

View Reference: Top Down

Upper Case Split-Line FlatnessFlatness of Split-Line to Itself

Section III: Virtual Assembly

Axial ClearancesRotor Impeller Outer Face to Case Clearance

Suction End

Thrust End

6B 8B7B

ASuction

SideThrust Side

1 0.351 0.1692 0.358 0.1863 0.329 0.2614 0.375 0.1975 0.488 0.1906 0.328 0.2387 0.417 0.2238 0.431 0.187

BSuction

SideThrust Side

1 0.349 0.1752 0.399 0.2033 0.352 0.2464 0.324 0.1845 0.501 0.1906 0.317 0.2247 0.413 0.2288 0.389 0.185

Axial ClearancesRotor Impeller Inner Face to Case Clearance

Suction End

Thrust End

1A 2A 3A4A 5A 6A 7A 8A

1B 2B 3B4B 5B 6B 8B7B

A1 0.1832 0.1893 0.1874 0.1515 0.1526 0.1537 0.1538 0.159

B1 0.1812 0.1913 0.1804 0.1555 0.1536 0.1557 0.1568 0.154

Labyrinth Seal Clearances - TransverseDiaphragm Seal Clearance to Rotor Surface

Suction End

Thrust End

.013”.011”

.009” .008”

.008”

.007”

.004”.015” .010”

.011”

.008”

.005”

.009” .010”

.010” .013”

.013”

.015”.014”

Labyrinth Seal Clearances - TransverseDiaphragm Seal Clearance to Rotor Surface

Suction End

Thrust End

.012”

.016”.018”

.014”

.010” .012”.014”

.022”

.010” .012”

.015” .022”

.008”.008”

Labyrinth Seal Clearances – VerticalDiaphragm Seal Clearance to Rotor Surface

Suction End

Thrust End

.019”.004”

.016” .000”

.002”

.001”

.002”.023” .005”

.006”

.011”

.005”

.014” .012”

.007” .007”

.007”

.000”.011”

Labyrinth Seal Clearances - VerticalDiaphragm Seal Clearance to Rotor Surface

Suction End

Thrust End

.007”

.023.018”

.018” .004”.019”

.021”

.015” .018”

.024” .026”

.007”.003”

Low Pressure Compressor Analysis

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