초록 ▼

An automatic virtually leak-free filling system for filling a liquid tank (1), comprises a bulk supply tank (3), a pump (12, 22) and a liquid line (5, 11) connected to the bulk supply tank which at its open end is provided with a coupling (9) for a manually detachable, virtually leak-free to a filli

An automatic virtually leak-free filling system for filling a liquid tank (1), comprises a bulk supply tank (3), a pump (12, 22) and a liquid line (5, 11) connected to the bulk supply tank which at its open end is provided with a coupling (9) for a manually detachable, virtually leak-free to a filling neck (25) of a liquid inlet (10) to the liquid tank (1). The system is moreover furnished with an overfill protection circuit which automatically cuts off the liquid supply to the liquid tank (1) on reaching a predetermined filling level in the liquid tank (1). According to the invention, the liquid tank (1) is furnished with a localized vapour outlet (15) which, at least during operation, connects to a vapour return line (13). The overfill protection circuit comprises a float valve (20) which is capable of cutting off the vapour return line (13) when the predetermined filling level is reached. The overfill protection further comprises a vapour flow detector (16) which is interposed in the vapour return line (16) and is capable of producing an electrical output signal when any vapour in the vapour return line (13) ceases to flow. This output signal is fed to the pump (12, 22) causing the further supply of liquid to be cut off.

대표청구항 ▼

Automatic, virtually leak-free filling system for filling a liquid tank (1) comprising a bulk supply tank (3), a liquid line (5, 11) at one end connected to the bulk supply tank (3) and at the opposite end fitted with coupling means (9) for a manually detachable, virtually leak-free coupling to a fi

Automatic, virtually leak-free filling system for filling a liquid tank (1) comprising a bulk supply tank (3), a liquid line (5, 11) at one end connected to the bulk supply tank (3) and at the opposite end fitted with coupling means (9) for a manually detachable, virtually leak-free coupling to a filling neck (25) of a liquid inlet (10) to the liquid tank (1), pump means (12, 22) for transport of liquid from the bulk supply tank (3) to the liquid tank (1), and comprising overfill protection means (12, 14, 16, 22) in electrical and fluid communication with said pump means, for automatically cutting of the liquid supply to the liquid tank (1) when a predetermined filling level has been reached in the liquid tank (1), the liquid tank (1) being provided with a localized vapour outlet (15) which, at least during operation, connects to a vapour line (13) and with a float valve (20) mounted adjacent said coupling means (9) and capable of cutting off the vapour line (13) when said predetermined filling level is reached, and a vapour flow detector (16) comprised by said overfill protection means being interposed in the vapor line (13), characterized in that the vapour flow detector (16) is capable of producing an electrical output signal when any vapour in the vapour line (13) ceases to flow, and in that the vapour flow detector (16) is electronically coupled to the pump means (12, 22) such that the liquid supply is cut off on the occurrence of said output signal.