摘要:
A Self-sustained Ecological Irrigation System protected against obturations and capable to irrigate at low cost, conservatively and uniformly a diversity of cultivated areas. The System executes automatically a succesive series of fertirrigation cycles, requiring minimum operating energy and input flow rate of water. The Invention allows implementations with a variety of configurations, comprising generally a plurality of local subsystems (1) being controlled locally or from a remote station (6); each subsystem comprising: a container (2) capable to accumulate the volume of liquid to be discharged per cycle; a watering actuator assembly (3) capable to regulate the watering volume and to discharge it when receiving a low energy triggering signal; a low consumption electronic control unit (4) capable to determine the frequency and appropriate time to send said triggering signal; and a low hydraulic losses distribution network (5), capable of uniformly transport the water to the localizations in need.
摘要:
The invention concerns a self-priming (30) siphon, and more particularly a device combining the capillarity (15) and the siphon (9), in particular but not exclusively, a device for watering plants from a water reserve (2).
摘要:
A nacelle assembly (38) for a turbine engine has a cowl (42) for a turbine engine. The cowl (42) has a first surface (46) spaced from a second surface (52). The second surface (52) defines a bypass flow passage (36). A flow volume (54) is spaced between the first surface (46) and the second surface (52). A plurality of holes (58) are disposed on the cowl (42). Each of the plurality of holes (58) are configured to alter local air pressure about one of the first surface (46) and the second surface (52) of the cowl (42). The plurality of holes (58) are in communication with the flow volume (54).
摘要:
The invention relates to a reservoir (1) for a throughfeed for liquid, such as a liquid pump (10), to be set into operation selectively, from and/or to a body of liquid (8) such as a pond, aquarium or bath, comprising: a container (2) for containing liquid and with an outlet (9) for connecting onto the throughfeed to the body of water; and a refill container (3) which, depending on the level of the liquid in the container (2), is movable reciprocally between a high position and at least one lower position, and which is connected to an inlet of the reservoir connected to the body of liquid (8), wherein the refill container (3) comprises an overflow (11) along which liquid flows from the refill container into the container (2) in the at least one lower position of the refill container (3).
摘要:
The liquid transfer system (10) includes a liquid supply tank (14) and at least two pressurizable liquid holding vessels (34, 42). The liquid holding vessels (34, 42) are placed beneath the supply tank (14), and a liquid supply line (20) connects the supply tank (14) to each vessel (34, 42). The liquid supply line (20) is operated as a siphon from the tank (14) to each vessel (34, 42), in order to move liquid from the tank (14) to each vessel (34, 42). Each vessel (34, 42) is alternately filled and pressurized to dispense liquid from the vessel (34, 42) such that one vessel is being filled while the other is dispensing liquid, and a constant controllable liquid output flow is achieved. A preferred embodiment includes a liquid recycling line to recycle or constantly move the liquid within the system (10) to achieve thorough mixing, and an in-line filter to improve liquid purity.
摘要:
Le tuyau de siphonnage (11) est branché à son extrémité d'exutoire (13) sur un tube rigide (14) soit directement, soit par l'intermédiaire d'un raccord tournant. Le tube (14), placé sur un support rigide (20), peut osciller autour d'un axe horizontal (15) par le jeu d'un contrepoids (16). Le déplacement ascendant du tube (14) est limité par une butée haute (17) et le déplacement descendant par une butée basse (18) de façon que le siphon débitant au-dessus de son débit critique, le tube (14) soit incliné, en appui sur la butée basse (18) et que, lorsque le débit atteint le débit critique, le tube (14) se vide et vienne se mettre en butée sur la butée haute (17) par le jeu du contrepoids (16). Une augmentation de la charge au niveau de l'extrémité amont (12) du tuyau de siphonnage (11) se traduit par une montée de l'eau dans le tube (14) jusqu'à ce que son déséquilibre entraine à nouveau la position inclinée sur la butée basse (18) et qu'un débit critique s'installant, permette d'expulser les bulles de dégazage accumulées au point haut du tuyau de siphonnage (11).
摘要:
Self-draining ullage fuel tank system and related methods are described. An example fuel tank apparatus (100) includes a fuel tank (106) and an ullage tank (104) positioned at an elevation relative to the fuel tank. The example fuel tank apparatus also includes a fluid path (128) to fluidly couple a cavity of the fuel tank (106) and a cavity of the ullage tank (104). The fluid path (128) having a first end coupled to the cavity of the fuel tank (106). The fluid path (128) having a second end extending through an opening of an upper wall of the ullage tank (104) and having an opening positioned adjacent a bottom surface of the cavity of the ullage tank.
摘要:
The invention relates to a fuel tank (1) for a motor vehicle, in which at least two chambers (2, 3) are interconnected via a tank area having a smaller cross-section (4) while forming partial volumes of the tank that communicate with one another. In a saddle tank of this type, a fuel delivery unit (8) is arranged inside a first chamber (2), and a refueling vent valve (17) is provided inside a second chamber (3). Both chambers (2, 3) are connected to one another via a compensating line (10) according to the principle of communicating pipes. In addition, means are provided for venting the compensating line (10). The inventive fuel tank (1) is characterized in that only one refueling vent valve (17) is provided inside the second chamber (3) and that the compensating line (10) is designed such that a compensation of the levels of the intercommunicating chambers (2, 3) is possible only when the level of the second chamber (3) drops to that of the first chamber (2).