| Carbon Seal Wear Tests Using the RTD Seal Rig. |
DEC 1970 |
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| Authors:
J. P. Cuellar; D. A. Montalvo; B. B. Baber; SOUTHWEST RESEARCH INST SAN ANTONIO TX
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 | Test results are presented for an investigation of carbon seal wear suing the RTD seal rig. The test machine employs a full-scale main shaft jet engine seal-the forward seal of the No. 2 bearing sump for the J-93 gas turbine engine. Data for a 410-hr test using a MIL-L-7808G lubricant showed mild oxidative deterioration of the lubricant with no evidence of significant carbon seal wear. Similar results were obtained with ... |
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| Evaluation Study of the Oxidation-Corrosion-Deposition Characteristics of Aircraft Turbine Engine Lubricants. Volume II. |
OCT 1970 |
149 pages |
| Authors:
J. P. Cuellar; B. B. Baber; SOUTHWEST RESEARCH INST SAN ANTONIO TX
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| Evaluation Study of the Oxidation-Corrosion-Deposition Characteristics of Aircraft Turbine Engine Lubricants. Volume I. |
OCT 1970 |
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| Authors:
J. P. Cuellar; B. B. Baber; SOUTHWEST RESEARCH INST SAN ANTONIO TX
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| Deposition and Degradation Characteristics of Aircraft Turbine Engine Lubricants. Volume II. Summary Data Sheets. |
JUN 1970 |
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| Authors:
B. B. Baber; J. P. Cuellar; D. A. Montalvo; SOUTHWEST RESEARCH INST SAN ANTONIO TX
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| The report contains a compilation of the individual test summary sheets for all tests for evaluating deposit and degradation characteristics of aircraft turbine engine lubricants reported in Volume I (AD-871 991). The individual test summary sheets are presented in the order of test number. |
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| Deposition and Degradation Characteristics of Aircraft Turbine Engine Lubricants. Volume I. |
JUN 1970 |
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| Authors:
B. B. Barber; J. P. Cuellar; D. A. Montalvo; SOUTHWEST RESEARCH INST SAN ANTONIO TX
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| A detailed description of the bearing deposition test method for evaluating deposite and degradation characteristics of aircraft turbine engine lubricants at various temperature severity levels is presented. The 350/500F bearing deposition test data are presented for 103 lubricants, identified generally as MIL-L-7808 and MIL-L-23699 type lubricants. Approximately 40 percent of the lubricants evaluated at these test conditions gave a deposit rating of less than 60. Lubricant O-68-10, a MIL-L-7808 type ... |
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| Evaluation Study of the Oxidation-Corrosion Characteristics of Aircraft Turbine Engine Lubricants. Volume I |
MAY 1970 |
47 pages |
| Authors:
J. P. Cuellar; B. B. Baber; SOUTHWEST RESEARCH INST SAN ANTONIO TX
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 | Results of oxidation-corrosion test evaluations on numerous aircraft turbine engine lubricants are given. Lubricant types include those related to four specifications as well as a number of experimental-type fluids such as polyphenyl ethers. Blends of selected lubricants were also examined. Test conditions were varied extensively in the study, with emphasis on the parameters of time, temperature, airflow, metals, and reflux of condensable sample vapors. A major objective in investigations with ... |
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| Evaluation Study of the Oxidation-Corrosion Characteristics of Aircraft Turbine Engine Lubricants. Volume II |
MAY 1970 |
235 pages |
| Authors:
J. P. Cuellar; B. B. Baber; SOUTHWEST RESEARCH INST SAN ANTONIO TX
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| The report contains a compilation of the individual test data sheets for all tests reported in AD-869 884. The data sheets are presented in the order of test number. |
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| Storage Stability of Synthetic Lubricants. |
JAN 1969 |
32 pages |
| Authors:
J. P. Cuellar; R. K. Johnston; SOUTHWEST RESEARCH INST SAN ANTONIO TX
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| Lubricant storage stability data are presented for two separate programs, each of 2 years' duration, using controlled storage conditions. One study dealt solely with the stability characteristics of a MIL-L-7808 lubricant. The second program involved five lubricant types including one MIL-L-9236B lubricant, one MIL-L-23699 type fluid, one MIL-L-27502 fluid, a 5P4E polyphenyl ether, and one experimental lubricant formulation related to polyphenyl ether. (Author) |
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| BEARING DEPOSITION TEST--ANALYSIS OF 48-HOUR TEST RESULTS. |
JUL 1967 |
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| Authors:
J. P. Cuellar; B. B. Baber; P. M. Ku; SOUTHWEST RESEARCH INST SAN ANTONIO TX
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| A detailed test method is presented for evaluating deposit and degradation characteristics of aircraft turbine engine lubricants at 350/500 F temperature conditions. Minor modifications to the equipment and test procedure allow tests to be performed at temperature levels up to 650/700 F. Deposit ratings obtained on 27 lubricants show the standard deviations of the individual mean deposit ratings to vary between 1.0 and 23.0, with 21 of the 27 values ... |
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| DEPOSIT AND DEGRADATION CHARACTERISTICS OF AIRCRAFT TURBINE ENGINE LUBRICANTS. |
FEB 1966 |
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| Authors:
J. P. Cuellar; B. B. Baber; P. M. Ku; SOUTHWEST RESEARCH INST SAN ANTONIO TX
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| Lubricant deposit and degradation test data are presented for 34 lubricants (29 MIL-L-7808 type and five MIL-L-23699 type lubricants). The compatibility of selected lubricants when blended with lubricants of the same general class was also evaluated. In addition, a brief study was conducted with two lubricants wherein standard 48-hour test data were compared with results using the 100-hour CRC test procedure under Type 1 temperature conditions. All test lubricants were ... |
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| DEVELOPMENT OF LUBRICANT SCREENING TESTS AND EVALUATION OF LUBRICANTS FOR GAS TURBINE ENGINES FOR COMMERCIAL SUPERSONIC TRANSPORT. PART 2 |
MAY 1965 |
265 pages |
| Authors:
B. B. Baber; J. P. Cuellar; P. M. Ku; C. W. Lawler; C. M. Monita; SOUTHWEST RESEARCH INST SAN ANTONIO TX
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| Test methods, developed during the first year of this program and described in ASD-TDR-63-264, Part I, were used to evaluate the high-temperature capabilities of candidate lubricants intended for use in the advanced gas turbine engines of the commercial supersonic transport. The candidate lubricants were evaluated in the following tests: (1) lubricant oxidationcorrosion test, (2) lubricant deposits and degradation test, and (3) gear load-carrying capacity test. In addition, preliminary tests were ... |
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| DEVELOPMENT OF LUBRICANT SCREENING TESTS AND EVALUATION OF LUBRICANTS FOR GAS TURBINE ENGINES FOR COMMERCIAL SUPERSONIC TRANSPORT, PART 1 |
MAR 1963 |
213 pages |
| Authors:
B. B. Baber; J. P. Cuellar; P. M. Ku; C. W. Lawler; C. M. Monita; H. E. Staph; SOUTHWEST RESEARCH INST SAN ANTONIO TX
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| The present program was concerned with the devel opment of lubricant screening tests and the evaluation of candidate lubricants for advanced gas turbine engines for the commercial supersonic transport. In an effort to develop the required lubricant screening tests, strong reliance was placed on the experience gained from lubricant screening tests develofor the past and cur rent generations of gas turbine engines, but with due recognition of future requirements. These ... |
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| DEVELOPMENT OF LUBRICANT SCREENING TESTS AND EVALUATION OF LUBRICANTS FOR GAS TURBINE ENGINES FOR COMMERCIAL SUPERSONIC TRANSPORT |
01 AUG 1962 |
94 pages |
| Authors:
B. B. Baber; J. P. Cuellar; P. M. Ku; C. W. Lawler; H. E. Staph; SOUTHWEST RESEARCH INST SAN ANTONIO TX
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| During the period 1 May - 31 July 1962 the effort was directed mainly toward three areas: gear load-carrying capacity, bearing fatigue, and lubricant oxidation-corrosion. In the gear loadcarrying capacity phase, considerable dynamic calibration of the test equipment and exploratory testing of lubricants were made at temperatures up to 500 F. The bearing fatigue phase was confined to design studies on a 3-ball/cone fatigue tester with a temperature capability of ... |
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