Fuel pump noise reducing apparatus and method thereof for...

Details Fuel pump noise reducing apparatus and method thereof for... Fuel pump noise reducing apparatus and method thereof for...

2008-06-10

2008-06-10

Cronin, Stephen K. (Department: 3747)

Internal-combustion engines

Charge forming device

Gaseous fuel and air mixer

C123S1980DB, C123S1980DA

Reexamination Certificate

active

07383827

ABSTRACT:
A fuel pump noise reducing apparatus and a methods for a Liquefied Petroleum Injection (LPI) vehicle stops fuel provision by shutting off valves if a Liquefied Petroleum Gas (LPG) switch is turned off. Also, operation of a fuel pump is stopped by allowing an Interface Box (IFB) Electronic Control Unit (ECU) to turn off a relay and by insulating battery power provided to the fuel pump, thereby resulting in a reduction of noise and engine output consumption generated from unnecessary operation of the fuel pump.

REFERENCES:
patent: 4989573 (1991-02-01), Yokoyama et al.
patent: 5048479 (1991-09-01), Bartke
patent: 6766269 (2004-07-01), Lee
patent: 7127941 (2006-10-01), Shin

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