Patent ID: 7228846
Filing Date: 2007-06-12
Classification: F02M

Abstract:
1. A method of damping pressure pulsations and attenuating noise transmission in a fuel delivery system for a fuel-injected internal combustion engine, the method comprising: supplying fuel from a tank to at least one fuel injector connected to the internal combustion engine for delivering fuel to the internal combustion engine, the supplying includes conveying the fuel through a coil having at least one loop, the coil having a first end extending along a first axis and fluidly communicating with a fuel supply line, and a second end extending along a second axis and fluidly communicating with a fuel rail coupled to the at least one fuel injector, wherein the first and second axes are fixed relative to each other; and radially uncoiling and recoiling the coil with respect to a central axis that is fixed relative to the first and second axes in response to variations in fuel pressure within the coil, the uncoiling and recoiling providing infinitesimal volumetric changes in the coil.