Method for protecting an internal combustion engine by determini

Details Method for protecting an internal combustion engine by determini Method for protecting an internal combustion engine by determini

1976-09-10

1978-04-04

Serwin, R.E.

Chemistry: physical processes

Physical processes

Crystallization

23230R, 73 64, G01N 3330

Patent

active

040825116

ABSTRACT:
A new and improved on-site method for protecting an internal combustion engine in the field for maximizing service time by determining the change point of the lubrication oil when the TBN declines to a predetermined level. The on-site method utilizes a new field system fitted in a portable carrying case or a small cabinet and containing all the equipment necessary for analyzing lubrication oil including predetermined indicator marks on equipment for simplicity of application and for facilitating use by unskilled operators. The method includes two steps of titrating samples of lubrication oil for obtaining the TBN and TAN to indicate the change point of the lubricating oil when the TBN declines to a predetermined minimum. The method also can indicate a predicted change point so downtime for engine servicing can be scheduled. The TAN serves as an indicator of the amount of acid build-up in the lubrication oil.

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1972 Annual Book of ASTM Standards, Part 17, pp. 227-234.
Fisher Scientific Company, TD-164, Technical Data, Dec. 1962, pp. 1-12.
Orion Research, Instruction Manual model 407A, Orion Research Inc., Form IM407A/4701, .COPYRGT. 1974, pp. 1-18.

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