초록 ▼

A fuel vapor reduction apparatus comprising an inert gas receiver, pressure sensor of the vacant volume of a fuel storage tank, external pressure sensor, a non-permeable expandable member disposed inside the fuel storage tank, and an inert gas regulator that is responsive to a predetermined differen

A fuel vapor reduction apparatus comprising an inert gas receiver, pressure sensor of the vacant volume of a fuel storage tank, external pressure sensor, a non-permeable expandable member disposed inside the fuel storage tank, and an inert gas regulator that is responsive to a predetermined differential pressure between the pressure of the vacant volume inside the tank and the external fuel storage tank pressure, whereby, the expandable member is able to expandably receive and hold the inert gas to fill the vacant volume and reduce fuel vapor formation.

대표청구항 ▼

[ What is claimed as being new and desired to be protected by Letters Patent of the United States is as follows:] [1.] A fuel vapor reduction apparatus, for a fuel storage tank having an internal volume substantially including a fuel volume and a vacant volume, which comprises:a. means for receiving

[ What is claimed as being new and desired to be protected by Letters Patent of the United States is as follows:] [1.] A fuel vapor reduction apparatus, for a fuel storage tank having an internal volume substantially including a fuel volume and a vacant volume, which comprises:a. means for receiving an inert gas in operable association with the fuel storage tank;b. means for sensing pressure of the vacant volume and producing an internal pressure signal corresponding to the pressure of the vacant volume;c. means for sensing external fuel storage tank pressure and producing an external pressure signal corresponding to the external fuel storage tank pressure;d. a non-permeable expandable member disposed inside said fuel storage tank between a fuel in the fuel volume and the vacant volume,said expandable member being in operable association with the fuel storage tank and the means for receiving an inert gas in a manner so as to be able to expandably receive and hold the inert gas; ande. means for regulating the inert gas received and held by the expandable member that is responsive to at least one of the internal pressure signal by relieving internal pressure corresponding to the internal pressure signal evidencing increases in the internal pressure and by allowing the inert gas to expand the expandable member corresponding to the internal pressure signal evidencing decreases in the internal pressure, and the external pressure signal by relieving internal pressure corresponding to the external pressure signal evidencing decreases in the external pressure and by allowing the inert gas to expand the expandable member corresponding to the external pressure signal evidencing increases in the external pressure,said means for regulating being operably connected to the means for receiving an inert gas,whereby, said expandable member can be reversibly expanded between a substantially relaxed first state and a second state in which the member and the inert gas contained thereby substantially fill the internal volume of the fuel storage tank.