Measuring and testing – Simulating operating condition – Marine
Patent
1996-01-25
1997-11-18
Dombroske, George M.
Measuring and testing
Simulating operating condition
Marine
73116, 731173, 123 9017, 340438, 36443103, G01M 1500, G01M 1302, G01B 702, B60K 3500
Patent
active
056890672
ABSTRACT:
The invention relates to a method and apparatus for monitoring wear of an engine timing chain. During engine operation, the relative phase relation of the signals of two engine-integrated on-board sensors which detect the angular position of different chain sprockets with respect to one another and are situated on different chain sprockets of the timing chain drive, is determined, and is then compared with a predetermined desired value. If the current actual phase relation differs from the desired value, a signal is emitted which reports an unacceptable lengthening of the timing chain. In addition to the sensors, the diagnostic device contains a signal processing unit which, detects the phase relation of the received sensor signals with respect to one another and performs a desired value comparison with respect to the phase relation. If the phase relation deviates from the predetermined desired value, a signal generator emits a signal reporting a lengthening of the timing chain.
REFERENCES:
patent: 3385096 (1968-05-01), Adams
patent: 3688557 (1972-09-01), Marinus
patent: 4068394 (1978-01-01), Sanna et al.
patent: 4373480 (1983-02-01), Shikata et al.
patent: 4575367 (1986-03-01), Karmel
patent: 4940447 (1990-07-01), Kawashima et al.
patent: 5307672 (1994-05-01), Macchiarulo et al.
patent: 5463898 (1995-11-01), Blander et al.
patent: 5548995 (1996-08-01), Clinton et al.
JP 59-140954 dated Aug. 13, 1994. JP 63-162940 dated Jul. 6, 1988.
"Ein neues Verfahren zur Messung und Bewertung der dynamischen Positionsdifferenz in rotierenden Systemen", Von Dirk Heintzen et al., MTZ 54 (1993) No. 4, pp. 184-189.
European Search Report dated Apr. 30, 1996.
Klein Siegfried
Rehfus Bernd
Daimler-Benz AG
Dombroske George M.
LandOfFree
Diagnostic method and apparatus for monitoring the wear of at le does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Diagnostic method and apparatus for monitoring the wear of at le, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diagnostic method and apparatus for monitoring the wear of at le will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1567664