Accelerated thermal fatigue testing of engine combustion chamber

Details Accelerated thermal fatigue testing of engine combustion chamber Accelerated thermal fatigue testing of engine combustion chamber

1997-12-22

1999-10-19

Miska, Vit

Thermal measuring and testing

Thermal testing of a nonthermal quantity

Of susceptibility to thermally induced deteriouration, flaw,...

73119, 432 51, G01N 360, G01M 1500, F27D 1900

Patent

active

059676604

ABSTRACT:
A method and apparatus of providing accelerated thermal fatigue testing of an engine component, comprising: (i) impinging one or more torch flames directly on a selected area of the test specimen (i.e. metallic engine cylinder head) to heat such area to a critical test temperature that exceeds the normal maximum loading temperature of the specimen in normal use by about 10-25%, and holding such temperature for a period of 0.01-2.0 minutes; (ii) at the end of the holding period (ie. Water jet water in head jacket, or air in ports) quenching the heated area of the test specimen to a temperature that is about 75% below that of the normal maximum loading temperature and holding such quenching temperature for about 1-3 minutes; and (iii) repeating steps (i) and (ii) until a crack is induced in the test specimen while recording the history of temperature and time involved in such repeated steps.

REFERENCES:
patent: 3599475 (1971-08-01), Dubouch
patent: 3973429 (1976-08-01), Durgan et al.
patent: 4090401 (1978-05-01), Yamamoto
patent: 4171636 (1979-10-01), Bergeron
patent: 4213328 (1980-07-01), Roeschlaub et al.
patent: 5054314 (1991-10-01), Cofflard et al.
patent: 5269370 (1993-12-01), Christian et al.

Affiliated with

Also associated with

Rating

Accelerated thermal fatigue testing of engine combustion chamber does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Accelerated thermal fatigue testing of engine combustion chamber, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Accelerated thermal fatigue testing of engine combustion chamber will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2047252