Patent 7828508 was granted and assigned to Mitsuba Corporation on November, 2010 by the United States Patent and Trademark Office.
A fuel pump includes an outer partitioning wall formed with an intake port; an inner partitioning wall formed with a discharge port; and an impeller housed between the outer partitioning wall and the inner partitioning wall, wherein each of the outer partitioning wall and the inner partitioning wall is formed with a fuel flow path that communicates with the intake port and the discharge port in a portion opposing a blade body provided on a periphery of the impeller, and the intake port is provided with an eddy current prevention section that prevents inflowing fuel from forming an eddy current.