Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1989-01-23
1990-07-31
Orsino, Joseph A.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340449, 3404503, B60Q 1100
Patent
active
049453386
ABSTRACT:
A warning system for an internal combustion engine, such as a small displacement outboard marine engine or the like, which does not have a switched B.sup.+ supply line. A parallel rectifier is taken from the alternator of the starting circuit of an engine to provide an auxiliary power source to the warning system when the engine is operating. Another auxiliary power source is taken from the positive coil contact of the starter solenoid to provide power to the warning system when the engine is starting. The auxiliary power sources are connected to one terminal of an annunciator whose other terminal is connected to a common node. A plurality of parallel sensors including an over-temperature switch, a low oil switch, and a variable ratio oiler are connected between the common node and ground to sound the annunciator based on abnormal operating conditions of the engine. Alternative embodiments show an auxiliary power source for a single phase alternator and a multiple phase alternator, respectively.
REFERENCES:
patent: 3307167 (1967-02-01), Race
patent: 4015237 (1977-03-01), Takatani et al.
patent: 4019489 (1977-04-01), Cartmill
patent: 4413248 (1983-11-01), Staerzl
patent: 4489305 (1984-12-01), Lang et al.
patent: 4684917 (1987-08-01), Tharmar
patent: 4695822 (1987-09-01), Furukawa
Orsino Joseph A.
Outboard Marine Corporation
Tumm Brian R.
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