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:
Nov. 14, 2000
Filed:
Feb. 02, 1998
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Abstract
A fuel injection system is provided with an interior pumping chamber (94) which is connected to a fuel inlet (98). A pumping element (90) is provided with piezoelectric elements (124) which are interspaced between electrodes (126, 128). The pumping element (90) is electrically connected to an ECU (58). Activation of the piezoelectric elements causes pumping element (90) to expand and thereby impart pressure from a pressure surface (112) which extends into the pumping chamber (94). Fuel in the pressure chamber, as a result of the piezoelectric elements is pushed from the pressure chamber and through an injection valve (116). The applicants are reminded that formal drawings are now required. Further, as noted in the Office Action of Dec. 16, 1999, in FIG. 2, numeral 124 should be changed to indicate mounting plate 121. On drawing sheet 6, FIG. 6a and FIG. 6b should be indicated.