The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 22, 1987
Filed:
Feb. 08, 1985
Leslie Hartridge Limited, Buckinghamshire, GB;
Abstract
The equipment measures the volume of fluid injected by each injector of the system, and possibly also the relative pulses of the different lines, by measuring the volume of fuel, and possibly also the angle of turn of the injector shaft between commencements of injections of the different lines. To provide signals indicative of the commencements of injection in the various lines, circuitry is provided which comprises a single commencement of injection detector for at least one of the lines, a counter which generates pulses at a rate proportional to the revolutionary speed of the pump shaft and which is reset following the issue of a reset signal, and an artificial commencement of injection pulse generator which generates artificial commencement of injection signals for the various lines of the pump according to a predetermined count of pulses from the counter since the latter was reset following the issue of a signal from the detector. To measure the relative phases of the different lines, the detector is positioned in a common gallery downstream of all the injectors, and a count is made between successive commencements of injection.