Abstract:
The heat exchanger comprises a device coupled in heat exchanging relation with a fluid stream by means of an arcuate array of radially directed, circumferentially spaced, thermally conductive fins with the mean plane of each fin being generally parallel of the axis of revolution of the arcuate array. The fins are corrugated into a wave-like geometry, with the waves increasing in amplitude with increase in radial distance from the axis of revolution, and with the wave fronts running generally laterally to the axis of revolution of the array. The fluid stream flows between adjacent fins in a serpentine path through the array in the axial direction.
Abstract:
An electrical insulator body is supported from a surrounding structure via the intermediary of a plurality of yieldable support members. The yieldable support members, in a preferred embodiment, are annular truncated conical members bonded to the outside surface of the insulator body and to the inside surface of the surrounding member. In a preferred embodiment the conical support members are made of a copper clad or copper plated alloy of nickel, cobalt and iron to provide increased thermal conductivity between the insulator body and the surrounding structure.
Abstract:
A linear-beam microwave tube comprises at least one electron beam directed along an axis crossing a cavity known as an output cavity in which it interacts with a microwave, this cavity having a terminal wall that separates it from a collector, the electron beam penetrating the collector by at least one aperture in the terminal wall. The terminal wall furthermore comprises at least one coupling unit to couple the output cavity with the collector, the microwave having to circulate in the collector before being extracted therefrom. Applications: klystrons and travelling-wave tubes that are easy to mount and inexpensive.
Abstract:
A satellite is formed with a signal translation and amplification system which includes at least one communication path. Each communication path includes a plurality of radiation-cooled TWTs powered by a single EPC. Also included in the communication path is a high efficiency radiation panel capable of transmitting heat generated by said TWTs and EPC into space; as well as a radiating collector which is directly applied to each TWT, and is capable of transmitting heat generated by said TWT into space.
Abstract:
Cooling device of a magnetron for a microwave oven, which includes a plurality of radiation fins disposed between an outer periphery of an anode cylinder and an inner surface of a yoke serving as a frame for radiating heat of a high temperature produced during osicillating operation of the magnetron for generating an electromagnetic wave. The temperature of the fins disposed centrally in substantially the same as the temperature of the fins disposed at both ends of the anode cylinder. This is accomplished by, the fins disposed centrally on the outer peripherey being arranged at a diffeent distance from the distance between the fins disposed on both ends of the anode cylinder or by the fins disposed centrally being made of different materials from the materials of the end.