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:
Oct. 10, 1995
Filed:
Apr. 06, 1994
Hiroki Kodama, Wako, JP;
Shinichi Kitajima, Wako, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A system for controlling an electric fuel pump housing a DC motor therein for an internal combustion engine using a gasoline-alcohol blend fuel. A switchover line is preestablished with respect to alcohol concentration in the fuel and operating condition of the engine such as an engine load, an engine speed or both the engine load and engine speed. If the detected condition exceeds the switchover line in a high engine load, a relay is energized so that battery voltage is supplied to the motor through a line bypassing a resistor provided at an initial power supply line. Voltage and hence current applied to the motor is thus increased to raise pump speed higher. Although the system construction is simple and low-cost, sufficient fuel can be supplied at the high engine load.