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Vehicle fluid containment system and method of verifying the integrity of the system

A liquid containment and vehicle system technology, applied in the direction of charging system, vehicle components, liquid fuel feeder, etc., to avoid negative pressure changes and reduce energy consumption

Inactive Publication Date: 2018-01-12
PLASTIC OMNIUM ADVANCED INNOVATION & RES SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Vehicle fluid containment system and method of verifying the integrity of the system
  • Vehicle fluid containment system and method of verifying the integrity of the system
  • Vehicle fluid containment system and method of verifying the integrity of the system

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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

The present invention proposes a vehicle liquid containment system comprising a tank, a pump arranged to pump liquid from the tank to a vehicle system through a supply line, a device arranged to sense the pressure in a vapor chamber within the tank A pressure sensor, and a nebulizer disposed in a branch of the supply line, the outlet of the nebulizer being disposed inside the 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 Patents(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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