Fluid sprinkling – spraying – and diffusing – Processes
Patent
1993-10-28
1995-06-13
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Processes
239119, 239583, 137312, B05B 1500
Patent
active
054234824
ABSTRACT:
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.
REFERENCES:
patent: 2077938 (1937-04-01), Kuttner
patent: 2686562 (1954-08-01), MacCracken et al.
patent: 3013733 (1961-12-01), Williams et al.
patent: 4504214 (1985-03-01), Stahl et al.
Publication entitled: "Shuttle Orbiter Flash Evaporator", by J. R. Nason et al. Hamilton Standard, 79-ENAs-14, American Society of Mechanical Engineers (Editors).
Mueller Robert
Unger Jochem
ERNO Raumfahrttechnik GmbH
Fasse W. F.
Fasse W. G.
Kashnikow Andres
Morris Lesley D.
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