Method and apparatus for laboratory testing of carburetors
US4030351A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 17, 1975 |
| Grant date | Jun 21, 1977 |
| Priority date | — |
| Expiry date | Nov 17, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M19/01
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
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 tes…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.