Tank system of a motor vehicle comprising a volume-modifying element
US10926625B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2018 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Jan 6, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60S5/02
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A tank system of a motor vehicle includes a volume-modifying element, which is provided in the interior of the fuel tank at least substantially above the liquid level and which is designed as a deformable bag, which forms a compensation volume connected to the environment, and includes a valve assembly, which closes under the control of a float during the filling of the fuel tank and thus brings about a maximum fill level in the fuel tank. A measure is provided for eliminating an effect of the volume-modifying element on the maximum fill level height. This measure can be that the volume-modifying element is arranged in the fuel tank such that, when the vehicle is standing on a horizontal surface, the top side of the volume-modifying element is not significantly above the fuel fill level at which the valve assembly closes in the vertical axis direction. Other measures include, for example, a controllable valve, which is provided in the connection between the compensation volume of the volume-modifying element and the environment and which is actuated in the closing direction when the fill level rising during the filling process has reached the maximum fill level height.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.