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. 07, 1978
Filed:
Apr. 16, 1976
Karl Willmann, Buchenbach, DT;
Helmut Saufferer, Esslingen, DT;
Abstract
An injection valve for internal combustion engines with a valve member forced against its valve seat opposite the injection direction by a spring force and adapted to be lifted off from the valve seat in the injection direction by the hydraulic pressure in the fuel liquid to be injected, and in which the fuel liquid is adapted to be sprayed off in the form of a spray cone; the valve seat is thereby arranged at the end of an electrically conductive tubular spacer member electrically conductively connected with the valve housing and projecting from the valve housing; the outer diameter of the tubular spacer member is thereby considerably smaller than a characteristic valve housing dimension within the area of the connecting place of the spacer member with the valve housing while an annular electrode is arranged at a spacing about the discharge place of the valve which is electrically insulated with respect to the valve housing and the spacer member; the front end edge of the annular electrode, as viewed in the injection direction, has a larger spacing from the valve housing than from the spacer member while its rear end edge lies outside of the spray cone; an electrical potential is applied to the annular electrode with respect to the valve housing.