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:
Aug. 31, 1976
Filed:
Sep. 23, 1974
John W Erickson, Huntington Beach, CA (US);
Walter W Crichlow, Santa Ana, CA (US);
Kobe, Inc., Huntington Park, CA (US);
Abstract
A multiple outlet, constant flow pitot pump comprising: a rotary casing; means for delivering fluid to be pumped to the casing; a plurality of discharge ducts generally coaxial with the rotary casing; and a plurality of circumferentially spaced pitot tubes in and extending radially of the rotary casing, the pitot tubes respectively having adjacent their outer ends inlets facing in a direction opposite to the direction of rotation of the rotary casing, the pitot tubes respectively having radial passages and having adjacent their inner ends outlets respectively connecting the inner ends of such radial passages to the discharge ducts, the pitot tubes further respectively having circumferentially rearwardly extending passages connecting the inlets to the outer ends of the radial passages, the upstream ends of the circumferentially rearwardly extending passages having divergent portions diverging rearwardly from the inlets, and the ratio of the area of the inlet of each pitot tube to the area of the circumferentially rearwardly extending passage thereof at the rearward end of the divergent portion of such passage being in the range of 1:1.1 to 1:100, means being provided for adjusting such area ratio. With the foregoing construction, liquid fuel can be supplied to a plurality of burners, or other devices, from the respective pitot tubes at equal flow rates. Further, with the divergent inlet portions mentioned, each pitot tube can supply fluid at a constant flow rate over a wide pressure range, which pressure range could result from burner fuel nozzle plugging due to carbon deposits.