Part-I - Controller General of Patents Designs and Trademarks

(12) PATENT APPLICATION PUBLICATION (21) Application No.1917/CHENP/2012 A
(19) INDIA
(22) Date of filing of Application :01/03/2012 (43) Publication Date : 21/06/2013
(54) Title of the invention : DEVICE FOR HIGH-PRESSURE FUEL INJECTION
(51) International classification :F02M 51/06
(31) Priority Document No :10 2009 028 234.3
(32) Priority Date :05/08/2009
(33) Name of priority country :Germany
(86) International Application No
Filing Date
(87) International Publication No : NA
(61) Patent of Addition to Application
:NA
Number
:NA
Filing Date
(62) Divisional to Application Number
Filing Date
:PCT/EP2010/058580
:17/06/2010
:NA
:NA
(71)Name of Applicant :
1)Robert Bosch GmbH
Address of Applicant :Postfach 30 02 20 70442 Stuttgart
Germany
(72)Name of Inventor :
1)JANSEN Sebastian
(57) Abstract :
The invention relates to a valve arrangement for high-pressure fuel injecti¬on comprising a valve housing (2) an outward
opening valve needle (3) arranged in the valve housing (2) in a compression chamber (4) filled with fuel to which fuel (K) is
sup¬plied under pressure wherein the valve needle (3) is sealed off at a valve seat (16) a clo¬sing spring (5) that guides the valve
needle (3) back to a staffing position an electroma¬gnetic actuator (6) with a displaceably arranged armature (7) to actuate the
valve needle (3) and a control valve (8) with a valve element (10) and a valve seat (11) wherein the valve element (10) has a first
functional surface (13) and a second functional surface (14) wherein the first functional surface (13) faces the compression
chamber (4) the second functional surface (14).
No. of Pages : 24 No. of Claims : 9
The Patent Office Journal 21/06/2013 13956