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Vehicular liquid containment system and method for verifying integrity of same

A technology for liquid containment and vehicle system, which is applied in charging systems, vehicle components, liquid fuel feeders, etc. to reduce energy consumption and avoid changes in negative pressure.

Inactive Publication Date: 2015-09-02
PLASTIC OMNIUM ADVANCED INNOVATION & RES SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, these systems are inherently less reliable than systems that direct pressure by other means

Method used

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  • Vehicular liquid containment system and method for verifying integrity of same
  • Vehicular liquid containment system and method for verifying integrity of same
  • Vehicular liquid containment system and method for verifying integrity of same

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Embodiment Construction

[0050] The present invention is based on the inventor's realization that by atomizing the pressurized liquid provided by the liquid pump already in the vehicle's liquid containment system, the pump of the vehicle can be used as a source of overpressure inside the vapor chamber of the tank. The invention is also based on the inventors' realization that pressure jumps obtained in this way are surprisingly reproducible.

[0051] An embodiment of a system according to the invention is now described with reference to a tank, preferably a fuel tank, having a pump for pumping liquid from the tank to a corresponding system through a supply line, for detecting vapors inside the tank A pressure sensor for the pressure in the tank, a valve arranged between the branch of the supply line and the sprayer, the outlet of which is arranged above the maximum fill level of the tank.

[0052] In this embodiment, the valve consists of a spring and piston contained within a cylinder. In the rest p...

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PUM

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Abstract

It is proposed a vehicular liquid containment system comprising a tank, a pump arranged to pump a liquid from said tank to a vehicular system via a feed line, a pressure sensor arranged to detect a pressure in a vapor dome inside said tank, and a sprayer arranged within a branch of said feed line, the outlet of said sprayer being arranged inside said tank.

Description

technical field [0001] The present invention relates to the field of vehicle fluid containment systems, and in particular to fuel tanks and liquid additive tanks for use in motor vehicles. Background technique [0002] Due to increasingly stringent environmental requirements for fuel and other chemical emissions from vehicles, it is critical that chemical-laden tanks on vehicles remain leak-free. Consequently, these tanks must in fact be equipped with means for detecting and preferably reporting any leaks that may occur. [0003] The prior art and the invention are described below mainly with reference to fuel tanks. This is done without loss of generality, since the skilled person will understand that the statements made apply to other vehicle fluid tanks as well. [0004] It is known to detect leaks in tanks by controlled increasing or decreasing the pressure inside the tank and then observing the pressure in the tank. The inflow or outflow of gas causes the changed pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K15/03
CPCB60K15/03F02M65/006F01N3/2066F02M37/0076F02D2041/225F02D2200/0602F02D19/0681F02D19/0665F02D19/0684F02D2041/228F02D19/0678
Inventor 乔希·巴特勒大卫·希尔B·克里尔
Owner PLASTIC OMNIUM ADVANCED INNOVATION & RES SA
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