Patent classifications
B67D7/52
FILLING NOZZLE
Filling nozzle for delivering a fluid, comprising an inlet (13) for connection of a fluid feed line, an outlet (14), a main conduit (15) connecting the inlet to the outlet, a main valve device (16) for controlling a flow of fluid through the main conduit (15), a control lever (17) for actuating the main valve device (16), an automatic safety shut-off designed to move the main valve device (16) to a closed position independently of a position of the control lever (17) when a fluid pressure at the inlet (13) falls below a minimum value, and comprising a preloading device (18) which preloads the main valve device (16) into the closed position and effects a variable opening cross-section of the main valve device (16) depending on a fluid pressure at the inlet. According to the invention, the preloading device (18) is designed to produce a discontinuous opening characteristic of the main valve device (16) in such a way that a closing force acting on a valve body (20, 20, 20, 22) of the main valve device is reduced in a first opening cross-section range extending from the closed position of the main valve device (16) to a limit opening cross-section.
FILLING NOZZLE
Filling nozzle for delivering a fluid, comprising an inlet (13) for connection of a fluid feed line, an outlet (14), a main conduit (15) connecting the inlet to the outlet, a main valve device (16) for controlling a flow of fluid through the main conduit (15), a control lever (17) for actuating the main valve device (16), an automatic safety shut-off designed to move the main valve device (16) to a closed position independently of a position of the control lever (17) when a fluid pressure at the inlet (13) falls below a minimum value, and comprising a preloading device (18) which preloads the main valve device (16) into the closed position and effects a variable opening cross-section of the main valve device (16) depending on a fluid pressure at the inlet. According to the invention, the preloading device (18) is designed to produce a discontinuous opening characteristic of the main valve device (16) in such a way that a closing force acting on a valve body (20, 20, 20, 22) of the main valve device is reduced in a first opening cross-section range extending from the closed position of the main valve device (16) to a limit opening cross-section.
SELF-CLOSING FILLING NOZZLE
The present invention relates to a nozzle for dispensing a fluid, with an inlet (2) for the connection of a fluid feed line, a main channel (16) which connects the inlet (2) to an outlet (25), with a main valve (5) for controlling a total volumetric flow through the main channel (16), and with a vacuum line (9) which opens into the main channel (16). According to the invention, the main channel (16) merges downstream of the main valve (5) into a part channel (10) and into at least one bypass channel (20a-20e) which runs parallel to the part channel (10), the part channel (10) and/or the at least one bypass channel (20a-20e) having means for prioritizing the fluid throughflow, which means are configured in such a way that a relative proportion of the total volumetric flow which flows through the part channel (10) decreases as the total volumetric flow increases, the part channel (10) having a tapered portion (33), and the vacuum line (9) opening in the region of the tapered portion (33) into the part channel (10). The vacuum generation is considerably improved by virtue of the part channel according to the invention, with the result that the reliability of an automatic switch-off device which is loaded by the vacuum is improved.
SELF-CLOSING FILLING NOZZLE
The present invention relates to a nozzle for dispensing a fluid, with an inlet (2) for the connection of a fluid feed line, a main channel (16) which connects the inlet (2) to an outlet (25), with a main valve (5) for controlling a total volumetric flow through the main channel (16), and with a vacuum line (9) which opens into the main channel (16). According to the invention, the main channel (16) merges downstream of the main valve (5) into a part channel (10) and into at least one bypass channel (20a-20e) which runs parallel to the part channel (10), the part channel (10) and/or the at least one bypass channel (20a-20e) having means for prioritizing the fluid throughflow, which means are configured in such a way that a relative proportion of the total volumetric flow which flows through the part channel (10) decreases as the total volumetric flow increases, the part channel (10) having a tapered portion (33), and the vacuum line (9) opening in the region of the tapered portion (33) into the part channel (10). The vacuum generation is considerably improved by virtue of the part channel according to the invention, with the result that the reliability of an automatic switch-off device which is loaded by the vacuum is improved.
LIQUID DELIVERY NOZZLE WITH ANTI-DRIP VALVE
A fluid delivery nozzle includes a housing with a handle portion defining an inlet and a transverse portion defining an outlet, where the transverse portion extends transversely to the handle portion and the housing defines a fluid pathway between the inlet and the outlet. A primary valve is in the handle portion and is operable between an open position and a closed position. A secondary valve in the housing is positioned downstream of the primary valve and is operable between an open position and a closed position. The secondary valve includes a shaft fixedly retained in the transverse portion of the housing, a valve seal movable along the shaft, and a spring arranged to bias the valve seal toward the closed position.
LIQUID DELIVERY NOZZLE WITH ANTI-DRIP VALVE
A fluid delivery nozzle includes a housing with a handle portion defining an inlet and a transverse portion defining an outlet, where the transverse portion extends transversely to the handle portion and the housing defines a fluid pathway between the inlet and the outlet. A primary valve is in the handle portion and is operable between an open position and a closed position. A secondary valve in the housing is positioned downstream of the primary valve and is operable between an open position and a closed position. The secondary valve includes a shaft fixedly retained in the transverse portion of the housing, a valve seal movable along the shaft, and a spring arranged to bias the valve seal toward the closed position.