摘要:
A T junction (1) of a flow obstacle (6) on a wall (3) bounding a flow having a main flow direction (5) comprises a concavity (7) of the wall (3) neighboring the flow obstacle (6). The concavity (7) terminates at a first distance (11) downstream the flow obstacle (6) and starts at a second distance (9) upstream the flow obstacle (6).
摘要:
A pawl latch having a pin assembly with a pin and a receiver assembly adapted to receive the pin assembly. The receiver assembly includes a receiver housing having a slider positioned slidably on the receiver housing, a cam rotatably mounted in the receiver housing, and a link connecting the cam and the slider. Rotating the cam moves the slider along the receiver housing. The receiver assembly includes a pawl and a stop, each having arms, respectively, that rotate. When the receiver assembly receives the pin assembly, contacts the arms of the stop and facilitates their rotation, in which the cam is enabled to be rotated and, in turn, facilitates movement of the slider. The arms of the pawl are rotated in order to lock the pin head of the pin assembly within the receiver assembly.
摘要:
A gasket for compressible placement between a first surface and a second surface is disclosed. In one embodiment, the gasket has a cellular metal skeleton embedded in a viscoelastic, pliable, deformable tacky polymer body. The skeleton has multiple strands, which connect to form multiple interconnected cells or pores. The skeleton, prior to being encapsulated in the tacky polymer body, is typically about 75% or more void space. The void space is substantially filled in the manufacture of the gasket, with the tacky uncured polymer. The uncured polymer will set up or cure, and then the gasket may be used.
摘要:
A sealant is provided for use on an aircraft or other vehicle. The sealant may be used with a gasket. The sealant is a perimeter seal that comprises a polyurea member. The polyurea member is a self-curing, two-component mix. It may cure to a hardness in the range of about 40 to 100 (Shore A). It may maintain an adequate peel strength to withstand multiple thermal and pressure cycling, and may have a working life, wherein it may be shaped, of less than about eleven minutes.
摘要:
A ground movement plug-in (GMP) apparatus for providing ground propulsion to an unmanned aircraft vehicle (UAV). In an embodiment, the GMP apparatus includes a frame configured to mechanically couple with the UAV, a plurality of wheels, at least one of which is actuatable by a motor, and a controller operably coupled to the motor to control propulsion of the GMP apparatus.
摘要:
The present invention discloses an aerial vehicle and a signal line protection assembly thereof. The signal line protection assembly comprises a foot stand and a protection sleeve. The foot stand comprises a foot stand sleeve. At least a portion of the protection sleeve is received in the foot stand sleeve. The protection sleeve receives a signal line therein to prevent the signal line from damages of external environment.
摘要:
An improved universal zero-moment support and adapter plate assembly is shown and described. In one embodiment, the assembly comprises an adjustable zero-moment support configured together with an off-axis adjustment. In other embodiments, an adapter and support assembly includes an external fitting, an adapter plate and an adjustable zero-moment support.
摘要:
A method and apparatus comprising a planar member (600) and a number of support members (602). The planar member (600) may be configured to be attached to an airframe of an aircraft. The number of support members (602) may be configured to connect the number of antennas (604) to the planar member. The apparatus provides a reduction in the number of aircraft hard points, which are part of the airframe that does not expand and contract much with changing atmospheric pressures relative to other parts of the aircraft.
摘要:
A pod assembly for attachment to an aircraft is comprised of a pod housing and a fairing housing mounted on the pod housing. A bulkhead divides the pod housing into first and second compartments. The first compartment is for containing radiating electronic apparatus, such as an electronic countermeasures system. The second compartment and the fairing housing are for containing aerial refueling equipment such as a hose-and-drogue system and power generating apparatus for the provision of power to the electronics and refueling equipment contained therein. Means are provided for cooling the first compartment and ventilating the second compartment with air from the first compartment.