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Apparatus for testing high pressure injector elementsAn apparatus for testing and evaluating the spray pattern of high pressure fuel injector elements for use in supplying fuel to combustion engines is presented. Prior art fuel injector elements were normally tested by use of low pressure apparatuses which did not provide a purge to prevent mist from obscuring the injector element or to prevent frosting of the view windows; could utilize only one fluid during each test; and had their viewing ports positioned one hundred eighty (180 deg) apart, thus preventing optimum use of laser diagnostics. The high pressure fluid injector test apparatus includes an upper hub, an upper weldment or housing, a first clamp and stud/nut assembly for securing the upper hub to the upper weldment, a standoff assembly within the upper weldment, a pair of window housings having view glasses within the upper weldment, an injector block assembly and purge plate within the upper weldment for holding an injector element to be tested and evaluated, a lower weldment or housing, a second clamp and stud/nut assembly for securing the lower weldment to the upper weldment, a lower hub, a third clamp and stud/nut assembly for securing the lower hub to the lower weldment, mechanisms for introducing fluid under high pressure for testing an injector element, and mechanisms for purging the apparatus to prevent frosting of view glasses within the window housings and to permit unobstructed viewing of the injector element.
Document ID
19940024862
Acquisition Source
Legacy CDMS
Document Type
Other - Patent Application
Authors
Myers, William Neill (NASA Marshall Space Flight Center Huntsville, AL, United States)
Scott, Ewell M. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Forbes, John C. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Shadoan, Michael D. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
September 6, 2013
Publication Date
September 7, 1993
Subject Category
Mechanical Engineering
Report/Patent Number
NAS 1.71:MFS-28773-1
Accession Number
94N29365
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-MFS-28773-1
Patent Application
US-PATENT-APPL-SN-117587

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