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:
Mar. 08, 1988
Filed:
Dec. 17, 1986
Applicant:
Inventor:
Karl-Heinz Bruss, Monchen Gladbach, DE;
Assignee:
Pierburg GmbH & Co. KG, Neuss, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D / ;
U.S. Cl.
CPC ...
137 82 ; 25112908 ; 25112921 ;
Abstract
An electromagnetic control valve for controlling the discharge of pressure fluid as a function of electrical voltage applied to an magnetic circuit for the adjusting and regulating of the pressure in a pressure chamber, the electromagnetic force produced by the applied voltage acting in the closing direction of the valve while a hydraulic force from the pressure fluid acts in the opening direction thereof. The magnitude of the electromagnetic force in the closed position of the valve exceeds the force of the pressure fluid and the electromagnetic force is adjustable by varying the air gap in the magnetic circuit.