Fuel dispensing system and method
US7171989B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2003 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Oct 31, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB67D7/3236
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
This application relates to a fuel dispensing system and method for safely regulating transfer of fuel between a fuel dispenser and a fuel recipient. The fuel dispensing system may be used, for example, to replenish electric vehicles that use refillable electro-chemical power generation systems, such as fuel cell hybrid systems using hydrogen fuel. The system employs a combination of interlocks and other safety features specifically adapted for high-risk indoor environments. Fueling cannot commence until the dispenser and the recipient are electrically bonded to minimize the risk of spark generation. The system may include, for example, a fuel supply subsystem for preventing fuel flow except during a fueling session, an immobilization subsystem for preventing relative movement of the dispenser and the recipient during a fueling session, a communication subsystem for enabling data exchange between the dispenser and the recipient, and a leak detection subsystem for monitoring the fueling site for fuel leaks. In order to minimize or negate the risk that hazardous and/or flammable products could be exposed to the atmosphere during a fueling session, the system ensures that fueling cann…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.