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
Methods and systems for creating a tail risk hedge index and trading derivative products based thereon
Extreme ultraviolet light generation apparatus
Imaging apparatus having selection unit to select focus detection areas
Chip on chip semiconductor device including an underfill layer having a resin containing an amine-based curing agent
Stroboscopic image modulation to reduce the visual blur of an object being viewed by an observer experiencing vibration
Wireless refrigerant scale platform
Combination of the application of antibodies for immunostimulation together with glucocorticoids
  Randomly Featured Patents
Supercritical pressure boiler with separator and recirculating pump for cycling service
Displacement current trigger SCR
Method and apparatus for transmitting video data
Process for the microbiological preparation of 1,3-propane-diol from glycerol by citrobacter
High-strength stainless steel material in the form of a wheel rim and method for manufacturing the same
Mixing-tank trailer
Time history display of orthogonal code power levels
Rotor for use in IPM rotating electric machine, and IPM rotating electric machine provided with the rotor
Automatic frequency control apparatus
Filtering method for filtering liquids