IE B063COMMISSION REPORT OF 09.07.2003
Locomotive 44 compressor: faster air charging, gains grew with mileage
The compressor began building up pressure faster, noise and vibration dropped, the effect grew with mileage. 40 % — compressor output, charging time 28 → 20 s (2003).
PZhPTL-Sofia and “MAY” OOD
Key result
| EQUIPMENT | MILEAGE AFTER TREATMENT | WHAT WAS MEASURED |
|---|---|---|
| Locomotive 44-089.0, compressor No. 1 | 18 000 · 50 000 · 70 000 km | Time to raise reservoir pressure from 7 to 8 atm; compressor noise and vibration |
Time to raise pressure from 7 to 8 atm — by mileage after treatment
| MEASUREMENT | CHARGING TIME | VS. INITIAL |
|---|---|---|
| Before treatment | 28 s | — |
| 18 000 km after treatment | 26 s | −2 s |
| 50 000 km after treatment | 23 s | −5 s |
| 70 000 km after treatment | 20 s | −8 s |
The measurements were taken on locomotive 44-089.0 in operating mode; the compressor was treated without disassembly.
Commission findings
Current equivalent
Revitalizant gel for compressors and bearings →
Piston, screw and centrifugal compressors; rolling and sliding bearings running in an oil bath; machine-tool spindle units and slideways.
How such units are treated:
About this result:
Limits of this report: The results relate to the compressor of a series 44 locomotive under the operating conditions of ZhP Traktsiya Lokomotivi — Sofia; under other conditions the figures may differ. The treatment was performed by the distributor “MAY” OOD, which signed the report alongside the enterprise.