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
Lithographic apparatus and device manufacturing method
Processor and data transfer method
Switch redundancy in systems with dual-star backplanes
Subscribing to content
Ion implantation method and ion implantation apparatus
Label with surface ornamentation
  Randomly Featured Patents
Petroleum source rock identification
Periodically aligning an endless web
Ceramic composite body of silicon carbide/boron nitride/carbon
Storage stand
Laser peening of components of thin cross-section
Method for reducing a channel hopping time in an MPEG-2 system decoder
Method and apparatus for measuring the dynamics of a piano performance
Contact to n-GaN with Au termination
Hand sander