Automatic antiknock adjustment
AssigneeEthyl Corporation
InventorsJohn T. Jones, William C. Ludt, Hudson W. Kellogg
Life of this patent
Estimating the term…
Abstract
In the blending of gasoline a knock testing engine is automatically fed samples of the blended fuel and a standard fuel. The blending is controlled to maintain the knock intensity of the blended fuel at a standard value. Fuel sampling means are provided to minimize the time lag between blending and knock intensity determination.
Claims10
In an apparatus for sampling a liquid for test purposes and providing the sample at a predetermined elevation, a relatively small upright container having means for continuously supplying it with the liquid being sampled at a rate greater than required for testing, an outlet in its lower portion for connection to a testing means, and a suction tube projecting into the interior of the container from its upper portion for sucking out excess liquid and thereby defining a level for the liquid in the container.
A method of sampling a moving stream of liquid for test purposes, which method comprises the steps of withdrawing the liquid from the moving stream at a withdrawal rate of about 300 to 500 milliliters per minute, continuously delivering the withdrawn liquid to a relatively small upright container a distance away, sucking off liquid from the upper portion of the container to define a liquid level therein, and supplying liquid from the lower portion of the container to a testing means.
An apparatus for making repeated knock ratings of a fuel, said apparatus including automatic knock measuring equipment having a test engine, an indicator to show the relative rating of a fuel sample by that engine, a standard reference control, means for originally setting the indicator at a predetermined portion of its range, and automatic compensating mechanism connected to the engine to periodically cause it to measure the knock of a standard fuel and to automatically adjust the indicator so that the rating of the standard fuel corresponds with the standard reference control to compensate for drift of the automatic measuring equipment.
An automatic gasoline testing apparatus having a knock-testing engine, sampling means connected to selectably receive samples of test gasoline and of a standard fuel and supply the samples to the engine, an indicator to show the relative knocking characteristics of the engine when supplied with the different fuels, the indicator having a predetermined range of movement, and automatic compensating mechanism connected to shift the engine operation from the test gasoline to a standard fuel and to automatically adjust the indicator so that its indication for the standard fuel is at an intermediate portion of its range.
Dependencies are inferred from the claim text.