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:
Sep. 03, 1985
Filed:
Jun. 07, 1983
Wolf-Dieter Goedecke, Unterkirnach, DE;
Gerhard Schneckenburger, Hufingen, DE;
Reinhard Schwenzer, Aachen, DE;
Kienzle Apparate GmbH, Villingen, DE;
Abstract
Electropneumatic pilot or anticipatory control stage for a pneumatic servo valve includes a nozzle impact plate system, with an impact plate (9,23) controlled by a plunger coil (7) by the input of electric signals. Openings (58,61,62) are arranged in a diaphragm spring disk (10) serving as carrier element for the plunger coil (7), as well as in the front flange (65) of the coil body (8), these openings (58,61,62) guide a flow of air (64) passing through a measuring nozzle (22) of the valve main stage (2) into the pilot control state (1) through a magnetic gap or space (66,67) about the plunger coil (7) and conduct the air into the atmosphere via exhaust ducts (63). By means of the work medium inherent to the servo valve, a permanent cooling of the plunger coil (7) is effected. The automatic control valve affords miniaturization and the improvement of the valve dynamics for better integration in pneumatic drives.