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. 29, 2003
Filed:
Oct. 13, 1999
Raymond Schuurman, Schwieberdingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
An electromagnetically controlled pressure regulating valve includes a hollow housing bounding a user channel having one end to be connected to a hydraulic medium user and another end, and respective supply and a discharge channels communicating with the interior of the housing between the ends, and at other end of the user channel, respectively. A closing member is mounted in the housing for movement toward and away from a closing position in which it sealingly separates the user channel from the discharge channel and is acted upon at the other end of the user channel by an armature with a variable combined force applied to the armature by an electrically energizable coil and by a return spring. A throttling device including at least two throttling orifices extending in fluid flow parallelism with one another between the supply and user channels and each having a length and a transverse dimension that are in a ratio of at least 2:1 is interposed between the supply and user channels.