초록 ▼

A simple and reliable liquid level control for controlling the level of a cryogenic fluid within an enclosure for an electrical component. This totally mechanical system varies the flow rate of the cryogenic fluid from a supply conduit until the full level is attained at which point the flow is comp

A simple and reliable liquid level control for controlling the level of a cryogenic fluid within an enclosure for an electrical component. This totally mechanical system varies the flow rate of the cryogenic fluid from a supply conduit until the full level is attained at which point the flow is completely turned off. Details of materials used and construction considerations made in order to operate in this somewhat unstable environment are presented. The design includes the passages for exhausting the evaporated cryogenic fluid that is boiled off by the heat from the electrical component in the enclosure.

대표청구항 ▼

An apparatus for controlling a cryogenic fluid level, comprising: a valve housing having a lower portion which serves as a datum for the cryogenic fluid level; float means for mechanically indicating the cryogenic fluid level relative to the datum; said float means has a disk shape with an axially s

An apparatus for controlling a cryogenic fluid level, comprising: a valve housing having a lower portion which serves as a datum for the cryogenic fluid level; float means for mechanically indicating the cryogenic fluid level relative to the datum; said float means has a disk shape with an axially symmetric aperture therein; actuator means connected to the float means for providing a mechanical force and displacement that are functions of a difference between the cryogenic fluid level and the datum; and valve means located within the valve housing responsive to said actuator means for controlling a flow of a cryogenic fluid from an input to an output thereof to reduce the difference between the cryogenic fluid level and the datum.