Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Patent
1978-06-14
1980-03-04
Hershkovitz, Abraham
Fluid handling
Self-proportioning or correlating systems
Self-controlled branched flow systems
91420, 91466, H01M 630
Patent
active
041912020
ABSTRACT:
A polarity control valve enables the undiscriminating interconnection of a pressure line and a return line to two available ports to provide fluid pressure at an output line and a return connection through a return port. This feature of interconnecting either the pressure line or the return line to any of the two available ports is achieved by a pressure positionable spool mounted in a ported sleeve. The spool is positionable between one of two positions depending upon which port is connected to the pressure line. By controlling the distribution of lands on the spool the position thereof always establishes a fluid path from the pressure line to an output port connected to a fluid pressure responsive component. Fluid returning from the component is likewise directed by means of the positionable spool to the return line.
REFERENCES:
patent: 2837106 (1958-06-01), Bauer
patent: 3282284 (1966-11-01), Harris
patent: 3738379 (1973-06-01), Wilke
Hershkovitz Abraham
Textron Inc.
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