Measuring and testing – Simulating operating condition – Marine
Patent
1975-11-17
1977-06-21
Gill, James J.
Measuring and testing
Simulating operating condition
Marine
G01M 1900
Patent
active
040303519
ABSTRACT:
The specification discloses a method and apparatus forlaboratory testing of carburetors to determine the mass air flow rate and mass fuel flow rate through the carburetor at any desired test point by providing, in addition to the normally required systems, an improved manifold vacuum control system for producing a predetermined air flow at a given manifold vacuum, and an improved hood pressure control system which enables carburetor testing to take place at test points which correspond to different altitudes in which the carburetor may be used. In addition, by providing that these systems be computer controlled, the three-mode controllers normally associated with producing air flow and controlling hood pressure are replaced by a computer which provides output control signals corresponding to that which would be provided by three-mode controllers where the values of rate, reset and proportion are continuously and automatically changed to the optimum value for each test point. In this way it is now possible to perform the laboratory carburetor test completely automatically at many test points in the carburetors operating range more quickly, accurately and reliably, whether or not testing is required at sea level or at any altitude within practicable limits.
REFERENCES:
patent: 3434341 (1969-03-01), Zaske
patent: 3524344 (1970-08-01), Converse et al.
patent: 3646600 (1972-02-01), Bier et al.
patent: 3691824 (1972-09-01), Vanderbilt et al.
patent: 3851523 (1974-12-01), Converse et al.
Ciarlante Anthony V.
Gill James J.
Scans Associates, Inc.
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