Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1981-05-21
1984-02-07
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
73660, 2351035R, 324392, 340681, G08B 2100
Patent
active
044306474
ABSTRACT:
In order to monitor the correct mounting of a rotation transducer on a rotary part, the output signal of the rotation of the indicator is caused to produce a first pulse at a particular angular position. An additional reference mark transducer is coupled to the rotary part to produce a second pulse for timing comparisons with the first pulse. Mechanical slippage of the rotation transducer on the rotary part can then be detected when one of the pulses is present without the other, and the failure of either of the transducers to operate can also be detected. The device is useful for assuring reliable operation of the rotation transducer controlling fuel injection in a Diesel engine.
REFERENCES:
patent: 3467358 (1969-09-01), Zablotsky et al.
patent: 3548300 (1970-12-01), Nolting
patent: 3877003 (1975-04-01), Kawashima et al.
patent: 3896377 (1975-07-01), Richardson
patent: 4169383 (1979-10-01), Guyot et al.
patent: 4201911 (1980-05-01), Dering
patent: 4255809 (1981-03-01), Hillman
patent: 4263578 (1981-04-01), Fukuhara et al.
patent: 4337647 (1982-07-01), Radcliffe et al.
Robert & Bosch GmbH
Swann III Glen R.
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