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:
Nov. 21, 2000
Filed:
Jan. 11, 1999
Erwin Krimmer, Pluederhausen, DE;
Tilman Miehle, Kernen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A switching magnet with which a valve reed of a high-pressure pump is lifted from a seat in order to switch off a pump element of the high-pressure pump. The switching magnet is disposed in a housing that is manufactured as a plastic injection-molded part. An armature that floats in an armature chamber and a brass sleeve are disposed on the inside of the housing and the brass sleeve is turned upside down over a pole piece. The pole piece supports an O-ring, which rests against the inside of the brass sleeve and seals the armature chamber in relation to the outside and in relation to the coil. A second O-ring seals a passage of the tappet in relation to a pump cover of the high-pressure pump. The switching magnet is designated for use in a high-pressure pump of a common rail injection system of an internal combustion engine.