Fuel supply system
US8562303B2 · kind B2 · utility
3Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2011 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | Aug 12, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B2205/05
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel supply system has an in-tank module. The in-tank module is provided with a pump, a filter, a pressure regulator and a pressure sensor detecting a fuel pressure. The pressure sensor is disposed on or at a vicinity of the fuel pump so that the pressure sensor easily detects a pulsation component due to the pump. A fuel pump controller includes a speed detection module which detects the rotation speed of the fuel pump based on a cycle of the pulsation component of the pressure detected by the pressure sensor. Thus, the rotation speed of the fuel pump can be indirectly detected by means of the pressure sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.