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:
Jun. 25, 1985
Filed:
May. 02, 1983
Wolf-Dieter Goedecke, Unterkirnach, DE;
Gerhard Schneckenburger, Hufingen, DE;
Reinhard Schwenzer, Aachen, DE;
Kienzle Apparate GmbH, Villingen, DE;
Abstract
Electropneumatic servo valve for controlling a volume current or a pressure, respectively. The subject matter of the invention relates to a two-stage, electropneumatic servo valve for controlling a volume current. The servo valve (1, 2) consists of an electromechanically controllable preliminary control stage (1), by means of which electric control signals are converted into pneumatic control pressure in a control air space (29) between the preliminary control stage (1) and a valve main stage (2) with a nozzle impact plate system (22, 9). The variably controllable control air pressure in the control air space (29) serves as actuating force for positioning a control piston (54) in the valve main stage (2), on the basis of which a proportional volume current can be adjusted at an operating output (A). The electropneumatic servo valve (1, 2) serves to convert electric control signals of low power for controlling a relatively large volume current for the operation of pneumatic drives.