Resources Contact Us Home
Method and apparatus for injecting a liquid in a waste heat removal system, especially in a spacecraft

Image Number 3 for United States Patent #5423482.

An apparatus and a method of injecting a liquid are provided, especially for the intermittent, essentially drip-free injection of a liquid into a waste heat removal system in a spacecraft. The injection apparatus includes a housing having an inlet, an outlet, a discharge channel communicating with the outlet, and a receiving chamber controllably communicating with the discharge channel. A piston is movably arranged in the housing to define a boundary of the receiving chamber. A valve arrangement operates in response to the motion of the piston to respectively open or close the path of liquid communication between the receiving chamber and the discharge channel. This apparatus carries out the method, whereby when delivery of injection liquid is to be stopped any liquid remaining in the discharge channel is sucked out into the receiving chamber. Then, when delivery of injection liquid is to be resumed, the retained liquid is moved from the receiving chamber into the discharge channel.

  Recently Added Patents
Node and wireless sensor network comprising the node
Wireless communications system, wireless communications apparatus, wireless communications method and computer program for wireless communication
Wine cellar alarm system
Techniques for forming a contact to a buried diffusion layer in a semiconductor memory device
Agent for expelling parasites in humans, animals or birds
Flip-chip mounting resin composition and bump forming resin composition
Method and apparatus for controlling the use of data stored on a media sample
  Randomly Featured Patents
Process for producing nitriles
Method for forming ferrocapacitors and FeRAM devices
Electrostatographic dry toner and developer compositions with hydroxyphthalimide
Device and method for battery removal from a mobile device
Novel resist spinning head
Non-freezing watering dish for animals
Methods and systems for remediating contaminated soil
Composite comprising array of needle-like crystal, method for producing the same, photovoltaic conversion element, light emitting element, and capacitor
Method and system for providing flash memory in an industrial personal computer