Combined RPM limiter, and electronic tachometer with shift point

Details Combined RPM limiter, and electronic tachometer with shift point Combined RPM limiter, and electronic tachometer with shift point

1978-11-24

1981-04-21

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Engine speed reduction by partial or complete omission of...

324166, 324168, 324169, F02D 3100, G01P 358

Patent

active

042626412

ABSTRACT:
A multi-function device using two ICs, with the precision ignition pulse frequency-to-voltage converted signal produced in the RPM portion being used as input to both ICs. Chatter pulses produced by an operational amplifier in the RPM limiter are utilized to shunt ignition pulses to ground in a proportional manner as engine speed approaches the selected maximum.

REFERENCES:
patent: 2934703 (1960-04-01), Cohen
patent: 3581720 (1971-06-01), Hemphill et al.
patent: 3673992 (1972-07-01), Westberg
patent: 3737773 (1973-06-01), Zobel
patent: 3738340 (1973-06-01), Olson
patent: 3789810 (1974-02-01), Sattler
patent: 3828742 (1974-08-01), Weis
patent: 3967604 (1976-07-01), Kondo
IC Op-Amp Cookbook, by Walter G. Jung, Copyright 1974, Howard W. Sams and Co., pp. 172-183.
"IC Engine Tachometer and `Red Line` Indicator," by Robert A. Hirschfield, Electronics World, May 1967, pp. 37-39.

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