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:
Apr. 14, 2020
Filed:
Oct. 12, 2018
Hoerbiger Automatisierungstechnik Holding Gmbh, Altenstadt, DE;
Györg Molnar, Waldenbuch, DE;
Michael Kirn, Altensteig, DE;
Benedikt Hildebrandt, Filderstadt, DE;
Sebastian Neiss, Stuttgart, DE;
Max Schrobenhauser, Peiting, DE;
Daniel Haller, Stuttgart, DE;
Jochen Schaible, Altensteig, DE;
Manjeet Bilra, Tuttlingen, DE;
HOERBIGER AUTOMATSIERUNGSTECHNIK HOLDING GMBH, Altenstadt, DE;
Abstract
An electropneumatic valve assembly comprises an electropneumatic pilot stage and a pneumatic power stage which is actuated by the pilot stage. Each pilot valve switches at least two power valves, and the valve assembly has a housing with an electrical signal input, with a compressed-air port, at least one vent port and at least one working outlet. The housing is layered with a pilot stage housing and a power stage housing connected along a substantially planar parting surface. At least one sealing element is between the pilot stage housing and power stage housing surrounding a control pressure region between the pilot stage housing and power stage housing. The control pressure region has two actuation regions for two power valves and has a duct-like connection with a defined flow cross section between the two actuation regions. An outlet of the associated pilot valve opens into the control pressure region.