Monitoring internal combustion engines

Details Monitoring internal combustion engines Monitoring internal combustion engines

1980-09-30

1983-03-08

Ruehl, Charles A.

Measuring and testing

By abrasion, milling, rubbing, or scuffing

250303, 73120, G01N 356, G01N 2300

Patent

active

043757618

ABSTRACT:
A method of monitoring the wear of relatively moving parts, particularly inaccessible moving parts of internal combustion engines, comprises fixing a length of radioactive material into the part to be monitored, so that one end of the material is flush with the wearing surface, and measuring the loss of radioactivity as the surface of the part and radioactive material are worn away.
An internal combustion engine having a length of radioactive material fixed into a relatively moving part, as described above, and a radiation detector which may be fitted to the outside of the engine is also claimed.
The method may also be used to measure wear in, for example, pumps or compressors.

REFERENCES:
patent: 2315845 (1943-04-01), Ferris
patent: 2939011 (1960-05-01), Bisso et al.
patent: 3101413 (1963-08-01), Schaschl et al.
patent: 3678273 (1972-07-01), Lewis
patent: 3715593 (1973-02-01), McGunigle
patent: 3797896 (1974-03-01), Bardach
patent: 3818227 (1974-06-01), Fries
patent: 3870607 (1975-03-01), Bardach

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