Indicator for determining the fuel level in a liquefied petroleum gas fuel tank, for use with a motor vehicle, has an array of optical sensors arranged vertically so that a signal is only generated if a sensor is above liquid

摘要

Device comprises an assembly of optical sensors (9) distributed vertically along a support within the interior of a fuel tank (2). Each sensor comprises a luminous light source and a receiver. The light beam is transmitted if a sensor is in a gas environment but not if submerged. The sensors are linked to a power supply, a signal processor and a display gauge (20).