US PATENT SUBCLASS 123 / 498
.~.~.~ Piezoelectric drive

Current as of: June, 1999
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123 /   HD   INTERNAL-COMBUSTION ENGINES

434  DF  CHARGE FORMING DEVICE (E.G., POLLUTION CONTROL) {29}
495  DF  .~ With fuel pump {11}
497  DF  .~.~ Electric fuel pump {2}
498.~.~.~ Piezoelectric drive

DEFINITION

Classification: 123/498

Piezoelectric drive:

(under subclass 497) Subject matter wherein the pump has a working member which is driven by a piezoelectric crystal or the crystal itself is the pump working member.