Sender unit for sensing the level of remaining fuel in a fuel tank utilizing a non-contacting sensor
US8015871B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2006 |
| Grant date | Sep 13, 2011 |
| Priority date | — |
| Expiry date | Nov 19, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/38
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a sender unit for sensing the level of remaining fuel in a fuel tank utilizing a non-contacting sensor. The sender unit for sensing the level of remaining fuel in a fuel tank of a vehicle is fixed in the fuel tank to sense the level of the remaining fuel by detecting the position of a float that floats depending on the level of the liquid surface of the fuel. The sender unit includes a casing; a disk-shaped rotor yoke pivotably received in the casing; a ring-shaped magnet fixed to a lower portion of the rotor yoke; a stator yoke that is a magnetic body including a plurality of horizontal arms spaced apart from a lower surface of the magnet so as to form a closed magnetic circuit together with the magnet; a magnetic sensing element fixed within a gap formed in the stator yoke; a plate which is fixedly received in the casing and to which the stator yoke is fixed; and a rod having one side end connected to the float and the other side end penetrating through the casing and fixed to the rotor yoke. According to the present invention, it is possible to accurately sense the level of fuel remaining in a fuel tank in a non-contacting manner, thereby improvi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.