Gas Lubrication of Bearings at Very High Temperatures
Report Number: ASD-TDR-62-465 p. 211-225
Author(s): Macks, F.
Corporate Author(s): Tribo-Netics Laboratory
Date of Publication: 1962-05
Pages: 15
Contract: AF 33(616)-7223
DoD Project: 3044
DoD Task: 30169
Identifier: This paper is part of a conference proceedings. See AD0278843
Abstract:
The prime objectives of this program have been recently extended to include thrust as well as journal pneumodynamic and pneumostatic bearings and means of evaluating the lubricant-bearing systems at temperatures from 80 to 1500°F or higher at low lubricant flow rates. Specific equipment details and program requirements are given in the paper. Flow orientation studies have been conducted at room temperature to speeds of 64,000 rpm (DN equivalent value 2.44 million). Gas bearings have been operated over the temperature range 80 to 1 500°F with flow rates from 1.3 to 30 lb/hr over a range of speeds and loads. Theoretical analyses result in generalized flow data for Type I (orifice compensated) and Type II (modified step) bearings which serve as a guide for experimental studies. Analyses of experimental data lead to an explanation of lubricant flow deviations between theoretical and experimental results at room and high temperatures. Generalized curves compare flow and load capabilities of many gases and saturated vapors from O to 2400°F with nitrogen as a reference lubricant.
Author(s): Macks, F.
Corporate Author(s): Tribo-Netics Laboratory
Date of Publication: 1962-05
Pages: 15
Contract: AF 33(616)-7223
DoD Project: 3044
DoD Task: 30169
Identifier: This paper is part of a conference proceedings. See AD0278843
Abstract:
The prime objectives of this program have been recently extended to include thrust as well as journal pneumodynamic and pneumostatic bearings and means of evaluating the lubricant-bearing systems at temperatures from 80 to 1500°F or higher at low lubricant flow rates. Specific equipment details and program requirements are given in the paper. Flow orientation studies have been conducted at room temperature to speeds of 64,000 rpm (DN equivalent value 2.44 million). Gas bearings have been operated over the temperature range 80 to 1 500°F with flow rates from 1.3 to 30 lb/hr over a range of speeds and loads. Theoretical analyses result in generalized flow data for Type I (orifice compensated) and Type II (modified step) bearings which serve as a guide for experimental studies. Analyses of experimental data lead to an explanation of lubricant flow deviations between theoretical and experimental results at room and high temperatures. Generalized curves compare flow and load capabilities of many gases and saturated vapors from O to 2400°F with nitrogen as a reference lubricant.
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