In-tank fuel reservoir with fuel level sensor
US4928657A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 2, 1989 |
| Grant date | May 29, 1990 |
| Priority date | — |
| Expiry date | Mar 2, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86228
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel delivery system for automotive engine and like applications comprises a canister for positioning within a fuel tank so as to be surrounded by fuel in the tank. An electric-motor fuel pump has an inlet and an outlet for feeding fuel under pressure from the tank to the engine. Excess fuel is returned from the engine to the canister. A fuel level sensor includes a pressure sensor positioned at a lower portion of the canister and responsive to head pressure within the canister and within the surrounding tank for providing an electrical signal as a function of a difference between such pressures. An indicator is responsive to such electrical signal for displaying tank fuel level to an operator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.