The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 1980
Filed:
May. 05, 1977
Hiroyuki Maruoka, Yokohama, JP;
Nissan Motor Company, Limited, Yokohama, JP;
Abstract
Disclosed is an electrostatic apparatus for controlling the volume of liquid flow through a passage, without the use of mechanically moving parts comprising a pair of electrodes fixedly disposed in a liquid passage with a short distance therebetween in the direction of liquid flow therethrough, and an electric circuit to produce an electric field between the electrodes. The circuit includes a controller to vary the strength of the electric field and/or reverse the polarity. A flow-constricting orifice may be interposed between the electrodes. The liquid in the electric field tends to migrate toward one of the electrodes, so that the volume rate of the liquid flow in the passage can minutely be varied with good responsiveness to an external control signal.