摘要:
A fluid conduit arrangement (10) includes a reservoir (12) containing a pressurized gas (14) therein. An outer rigid conduit (16) in communication with the reservoir (12) contains a first working fluid under pressure from the pressurized gas within a closed system defined by the reservoir (12) and the outer rigid conduit (16). An inner flexible conduit (18) is provided for conducting a second working fluid therethrough upon application of a supply pressure. The inner flexible conduit (18) is disposed within the outer rigid conduit (16), and is subjected to the pressurized first working fluid in surrounding relationship therewith. Relative differences between the pressurized first working fluid and the second working fluid enable the inner flexible conduit (18) to either expand and permit free flow of the second working fluid therethrough, or collapse and evacuate flow of the second working fluid therefrom.
摘要:
Le procédé comprend les étapes suivantes : - création d'un flux de gaz sous pression ayant un débit contrôlé et une température donnée; et - injection dans le flux de gaz sous pression d'un débit dosé d'une composition liquide comprenant au moins une huile essentielle liquide; le débit du flux de gaz et le débit de la composition liquide étant contrôlés de telle sorte que le flux de gaz après injection présente une pression partielle de vapeur d'huile essentielle inférieure de 20% au moins à la pression de saturation de vapeur d'huile essentielle à la température du flux de gaz.
摘要:
A method for controlling a water supply amount and a refrigerator using the same are disclosed. The method includes receiving information regarding a water supply amount selected by a user, counting a duration after starting water supply, and checking whether an error in a water supply amount measurement unit exists. When the water supply amount measurement unit is normal, an actual water supply amount is determined based on a signal from the water supply amount measurement unit, and, when a fault exists, a water supply amount is determined based on correlation between a stored water supply amount for normal operation and a water supply duration. Water supply is stopped when the selected water supply amount and the determined water supply amount are equal. When the water supply amount measurement unit is normal, the signal from the water supply amount measurement unit and information regarding a water supply duration are stored.
摘要:
Embodiments of the invention relate to a supersonic inlet having a cowl lip configured to capture the conic shock and exhibit a zero or substantially zero cowl angle. The inlet may be configured to employ a relaxed isentropic compression surface and an internal bypass. The nacelle bypass may prevent flow distortions, introduced by the capture of the conic shock, from reaching the turbomachinery, thereby allowing the cowl angle to be reduced to zero or substantially zero. Such a cowl angle may reduce the inlet's contribution to the overall sonic boom signature for a supersonic aircraft while allowing for an increase in engine pressure recovery and a subsequent improvement in generated thrust by the engine.
摘要:
Embodiments of the invention relate to a supersonic nacelle design employing a bypass flow path internal to the nacelle and around the engine. By shaping the nacelle, embodiments of the invention may function to reduce sonic boom strength, cowl drag, and/or airframe interference drag. Embodiments of the invention may also function to improve total pressure recovery and/or total thrust of the primary flow path through the engine.
摘要:
A processing apparatus (40) is provided with a process container (42) wherein a placing table is arranged for placing a subject to be processed; an exhaust system (64), which has vacuum pumps (70, 72) and a pressure control valve (68) for exhausting atmosphere in the process container (42); a gas jetting means (98), which is arranged inside the process container (42) and has a gas jetting port (102); and a gas supply means (100) for supplying a process gas to the gas jetting means (98). The entire processing apparatus (40) is controlled by a control means (114). The control means (114) controls the exhaust system (64) and the gas supply means (100). At the time of starting prescribed processing, the process gas of a flow quantity larger than a prescribed flow quantity is supplied for a short time, while exhausting the atmosphere in the process container (42) by the exhaust system (64), and then, the process gas of a prescribed flow quantity is supplied.
摘要:
A dual piston/poppet valve in a fuel dispenser works with a two-stage valve to help eliminate errors from an inferential flow meter. When the two-stage valve opens partially, a secondary fuel path is opened in the dual piston/poppet valve. A sensor detects the opening of the secondary fuel path and reports its opening to a control system. The two-stage valve opens fully and a primary fuel path is opened concurrently, During transaction completion, the two-stage valve partially closes, resulting in the closing of the primary fuel path. When the two-stage valve closes completely, the secondary fuel path closes. The sensor detects the closing of the secondary fuel path and reports the closing to the control system. Based on the outputs of the sensor, the control system accepts or declines input from a flow meter.
摘要:
A system and method for controlling a mass flow controller to have a constant control loop gain under a variety of different types of fluids and operating conditions, and for configuring the mass flow controller for operating with a fluid and/or operating conditions different from that used during a production of the mass flow controller. Further, the system and method includes providing control by reducing the effects of hysteresis in solenoid actuated devices by providing a non-operational signal to the solenoid actuated device.