Fuel tank system
US6533002B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2000 |
| Grant date | Mar 18, 2003 |
| Priority date | — |
| Expiry date | Nov 1, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2015/03514
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A cooling unit is mounted to an upper wall of a fuel tank so as to cool fuel. A control valve and a vent valve are disposed in a vapor line extending from a float valve to a canister. The control valve and the vent valve are disposed in parallel with one another and constitute a valve member. A cooling unit is mounted to an evaporation passage between a float valve and the valve member. Operation of the cooling units serves to cool fuel and inhibit generation of vapor. If the pressure in the fuel tank exceeds a control pressure, a control circuit opens the control valve and performs control such that the pressure in the fuel tank becomes lower than a running-state relief pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.