Measuring and testing – Internal combustion engine or related engine system or... – Compression
Patent
1983-01-03
1984-04-24
Myracle, Jerry W.
Measuring and testing
Internal combustion engine or related engine system or...
Compression
731173, 73120, G01M 1500
Patent
active
044440499
ABSTRACT:
An engine timing apparatus comprises an ultrasonic transducer 8 which directs a pulsed ultrasonic beam into a cylinder and converts the reflected ultrasonic signals into electrical signals. A sample/hold circuit 67 samples this signal at a time after each pulse when signal reflected by a piston ring passing through the beam are expected. A microcomputer 65 detects changes in the level of the sampled signal caused by the piston rings as the crankshaft rotates, and receives signals from a transducer 71 indicating the crankshaft position to allow top dead center position to be found. The microcomputer receives signals from a microphone 51 directed at a fuel injector indicative of the onset of ignition and calculates the timing angle of the engine. The apparatus also calculates engine speed and detects piston slap.
REFERENCES:
patent: 3416630 (1968-12-01), Pohl et al.
patent: 3498123 (1970-03-01), Tsuchiya
patent: 3580092 (1971-05-01), Scarpa
patent: 3731527 (1973-05-01), Weaver
patent: 3781782 (1973-12-01), Scott et al.
patent: 3930404 (1976-01-01), Ryden
patent: 4052663 (1977-10-01), Lindsey
patent: 4102181 (1978-07-01), Cser et al.
patent: 4109517 (1978-08-01), Dyballa et al.
patent: 4143319 (1979-03-01), Rouam
patent: 4289032 (1981-09-01), Tominaga et al.
patent: 4384480 (1983-05-01), Kroge et al.
patent: 4407155 (1983-10-01), Sundeen
"Ultrasonic Testing of Materials", Krautkramer, p. 516 and p. 569, last paragraph.
Froude Consine Limited
Myracle Jerry W.
LandOfFree
Engine testing apparatus and methods does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Engine testing apparatus and methods, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Engine testing apparatus and methods will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-109767