G - Physics – 01 – F
Patent
G - Physics
01
F
349/35, 349/39
G01F 1/72 (2006.01) A01C 5/06 (2006.01)
Patent
CA 1129065
FUEL LINE INJECTION SENSOR Abstract of the Disclosure A rugged and inexpensive sensor is disclosed for monitoring fuel injection characteristics such as injection pulse timing and width. A clamp is provided with hand grips and expandable jaws for quickly coupling to a fuel injection line. The jaws are biased into engagement with the line but are easily opened for releasing the clamp by urging the hand grips together. A trans- ducer mounted on the clamp senses mechanical vibration caused by pressure pulsations in the line. The transducer is connected to circuitry for providing an output when the signal level from the transducer exceeds a threshold level. The sensor is self- compensating with the threshold level determined automatically from the maximum signal from the transducer. Therefore, different injection lines can be monitored with no manual adjustment of the clamp or circuitry even though the output of the transducer may vary from line to line.
337813
Borden Ladner Gervais Llp
Deere & Company
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