| 摘要 |
<p>The invention relates to a calibration apparatus for control of propellant pumps, especially in the traffic sector, which apparatus is placed on a vehicle, especially a trailer. The apparatus (1) has at least one standard (10) for measuring a determined amount of propellant, and the standard is placed in a cardan suspension (49-52) which is elastically yielding (48) and may be locked during operation and during transport by means of supporting rods (53-59). A standard (10) is divided into a lower measuring compartment (11) and an upper foam top (14) which is connected to the measuring compartment (11) through a neck (12) with a measuring glass (13) and reading lines (22). The foam top (14) is ventilated (35-37) to a reception tank (5) placed at the bottom of the apparatus (1), and the standard (10) may be connected via a remote controlled discharge valve (20) to the reception tank (5) from which propellant may be pumped up into a buffer tank (64) at the top of the apparatus (1). From here the propellant may be returned to the storage tank of the tank station through a hose (72) either by the aid of gravity or by means of a pump. An electric generator (78) which may be driven by a belt drive (79-84) connected to one of the road wheels (2), may charge an accumulator (87), and a pressure container (88, 89) with a non-flammable pressurized gaz, e.g. carbondioxide, is provided for remote control of the discharge valve (20). A control device for time control of the functions of the apparatus is further provided.</p> |
