专利内容由知识产权出版社提供
专利名称：Method of and device for measuring the
amount of liquid fuel in a tank
发明人：Gunter Hartel申请号：US06/181679申请日：19800827公开号：US04354383A公开日：19821019
摘要：To measure the amount of liquid fuel in a ventilated fuel tank (1), the ventilationof the tank is stopped temporarily by a valve (7) and gas is removed from or fed into theunventilated tank through a device (12). A quantity indicative of the change in the gasstate in the tank is measured after feeding in or removal of the gas to provide an indirectmeasurement of the amount of fuel in the tank. The gas may be removed from or fedinto the tank at a constant volumetric flow rate, in which case the quantity measured willbe the time taken for a predetermined alteration in the pressure of gas in the tank tooccur. Alternatively, gas may be removed until a predetermined reduced pressure in thespace in the tank is reached and the volume of gas removed can provide a direct orindirect measure of the amount of fuel in the tank. As a second alternative a
predetermined volume of gas is removed and the alteration in pressure of the gas in thetank is measured.
申请人：BOSCH & PIERBURG SYSTEM OHG
代理机构：Toren, McGeady & Stanger
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