FLUIDS, LUBRICANTS, FUELS AND RELATED MATERIALS. Period covered January through December 1957

Technical Report · Fri Jan 31 23:00:00 EST 1958

OSTI ID:4327424

Klaus, E E; Fenske, M R

Extensive laboratory evaluation studies are presented for a series of mineral oils and hydrocarbons which have been super-refined by a pilot plant hydrogenation over nickel catalyst. Advantages of hydrogenated and exhaustively acid-refined mineral oils and hydrocarbons over conventionally refined mineral oils are demonstrated for application as base stocks for hydraulic fluids and lubricants. Completed hydraulic fluid formulations containing antifoam, antioxidant, and lubricity additives and jet engine oil formulations containing, in addition to theso three additives, Acryloid and paraffinic resin dispersants are described. A silane, several esters, Spec. MIL-L-7808 fluids, and an improved lubricity silicone hydraulic fluid are evaluated critically in high temperature tests. Properties of used samples of several jet engine oils evaluated in the J-57 jet engine are presented. These samples indicate more fluid deterioration than is predicted by Spec. MIL-L7808 type stability tests. Several more severe oxidative tests, including the Petroleum Refining Laboratory thin film oxidation test and the isothermal and nonisothemnal successive oxidation tests are described. These tests are designed to simulate more nearly the severity encountered in the J-57 engine test. The effects of several variables, including Huid type, fluid molecular weight, additives, fluid flow rate, and air flow rats on the high temperature single-pass lube rig are illustratsd. Procedures for the analysis of exhaust gas from the single-pass lube rig have been established to place oxdiation encountered in this test on a quantitative basis. Bulk oil oxidation tests of high temperature fluids are shown for test temperatures of 347 deg , 500 deg , and 700 deg F. The effect of fluid type and mineral oil class, degree of refining, and molecular weight are discussed for the 700 deg F tests. An evaluation of the character of the volatile products of the 700 deg F oxidation tests is presented. Wear and lubrication studies in the four-ball testers are used to illustrate the additive effects of silicones, silicates, thiocarbamates, and diisopropyl acid phosphite in ester and mineral oil and tests. Panel coker data in the Model C and controlled atmosphere units are compared and summarized for the effects of fluid type, degree of refining, molecular weight and additives. The construction of an evaporation unit of the type used in the Federal Test Method Standard No. 781 is described. (For preceding period see WADC-TR-55-3O(Pt. 5).) (auth)

• Research Organization: Pennsylvania State Univ., University Park. Petroleum Refining Lab.
• NSA Number: NSA-12-009776
• OSTI ID: 4327424
• Report Number(s): WADC-TR-55-30(Pt.6)
• Country of Publication: United States
• Language: English

Related Subjects

ACIDS
ACRYLIC ACID
AIR
AIRCRAFT
CARBAMATES
CATALYSIS
DISPERSIONS
ENGINEERING
ESTERS
EVAPORATION
FILMS
FLUID FLOW
FLUIDS
GAS FLOW
HIGH TEMPERATURE
HYDRAULICS
HYDROCARBONS
HYDROGENATION
LUBRICATION
MOLECULES
MOTORS
NICKEL
OILS
ORGANIC ACIDS
ORGANIC PHOSPHORUS COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDATION
PARAFFIN
PROPYL RADICALS
QUALITATIVE ANALYSIS
REFINING
RESINS
SILANES
SILICATES
SILICONES
SPHERES
STABILITY
TESTING
THERMODYNAMICS
THICKNESS
TURBINES
VOLATILITY
WEAR
WEIGHT