Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Carbon blacks having low PAH amounts and methods of making same
Lipoprotein analysis by differential charged-particle mobility
Floor standing rack
Digital photographing apparatus and control method for evaluating validity of an auto-focus operation
Stool
Data unit receiver and sender control method
Biomedical electro-stimulator
  Randomly Featured Patents
Integrated wireless distribution and mesh backhaul networks
Semiconductor device and a method of manufacturing the same
Device and method for determining systolic blood pressure
Bulletin board and frame
Zippered athletic shoe pocket
Louver
Crossover exerciser
Method and apparatus for motion estimation
Methods, systems and computer program products for smart card product management
Reducing query response time using tree balancing