摘要:
A measurement device for measuring speeds of rotation of at least two wheels of an aircraft undercarriage includes a measurement unit and a processor unit associated with each wheel. The measurement unit of each wheel is configured to transform the speed of rotation of the wheel into an electrical magnitude. The processor unit of each wheel is configured to acquire the electrical magnitudes produced by at least two measurement units in order to transform the electrical magnitudes into digital measurement signals representative of the speeds of rotation of at least two wheels, and in order to transmit the digital measurement signals to external equipment.
摘要:
A device and method for use in taking a sample from an item of medical equipment for the purpose of microbiological testing. The device includes attachment mechanism for attaching about a region of the item of medical equipment in an air-tight manner; and collection mechanism for collecting fluid which emanates from the item of medical equipment.
摘要:
The invention relates to an architecture for powering aircraft brakes for an aircraft having at least two undercarriages, each having a certain number of wheels, each of the wheels being fitted with brakes, each having a certain number of electromechanical braking actuators, the architecture including controllers for delivering power signals to the actuators in response to a braking order, the wheels on each of the undercarriages being grouped together in first and second complementary groups such that for each group of wheels, a first group of actuators is controlled by one controller that controls those actuators only, and a complementary second group of actuators is controlled by another controller that controls only those actuators.
摘要:
A device and method for use in taking a sample from an item of medical equipment for the purpose of microbiological testing. The device includes attachment mechanism for attaching about a region of the item of medical equipment in an air-tight manner; and collection mechanism for collecting fluid which emanates from the item of medical equipment.
摘要:
Some embodiments of the present invention provide a balance-of-plant system and apparatus suited for regulating the operation of an electrolyzer cell stack. Specifically, in some embodiments, a balance-of-plant system and apparatus is operable to regulate the respective pressures of at least two reaction products relative to one another. Various examples are provided to demonstrate how the respective pressures of two reaction products can be regulated in relation to one another in a pressure following configuration, thereby regulating the pressure differential across an electrolyte layer according to aspects of different embodiments of the invention. Some of the examples provided also include design simplifications and alternatives that may reduce production costs of electrochemical cells configured according to aspects of different embodiments of the invention.
摘要:
An accessory device for use in an automobile includes a body member, and a peripheral flange surrounding the body member. The body member is formed of an elastomeric material such that it is conformable to a gap within the automobile for catching falling objects and/or storing miscellaneous objects. The peripheral flange is also preferably formed of an elastomeric material. The body member defines an open receptacle having an opening on an uppermost surface of the accessory device, thereby providing access for objects to be placed within the receptacle.
摘要:
The invention provides a braking control method for a vehicle having a plurality of wheels fitted with tires and with brakes, the control method including generating a braking setpoint for each wheel in response to a braking order, and comprising the following steps for each wheel: regularly updating a grip model Ca/C0=fq1, . . . qn (τ) representative of a relationship between a coefficient of friction and a wheel slip rate; using the regularly rest grip model and its characteristic shape to establish in a given prediction horizon, the variation for the braking setpoint that, while complying with the braking order and predictable variation therein during the prediction horizon, also complies with a given calculation constraint; and retaining as the value for the braking setpoint a value of the variation as determined in this way that corresponds to a first calculation cycle in the prediction horizon.
摘要:
A system for collecting current in an electrochemical cell stack is described. The system includes an end plate having an outer face facing away from the cell stack and an inner face opposite the outer face. The system also includes a plurality of connection ports on the end plate for the transmission of process fluids. A plurality of passageways in the end plate connect the connection ports to openings on the inner face, and allow the process fluids to pass through the end plate. The system also includes a flow field plate in electrical communication with the end plate to allow current to flow therebetween.
摘要:
An electrochemical cell assembly with structural improvements for improving cell operation. The electrochemical cell assembly may include at least one of an extended MEA and chamfered edges on the flow field plates for preventing the shorting of the anode and cathode flow field plates. Further, the flow field plates may include a pocket for providing an appropriate space to accommodate a gas diffusion media and applying an appropriate amount of compression to the gas diffusion media.
摘要:
A sealing technique is provided for forming complex and multiple seal configurations for fuel cells and other electrochemical cells. To provide a seal, for sealing chambers for oxidant, fuel and/or coolant, a groove network is provided extending through the various elements of the fuel cell assembly and a seal material is then injected into the groove network. Several structural improvements have been made to cell components in relation to this seal in place process to reduce manufacturing cost and improve the performance of the electrochemical cells.