Title:
【発明の名称】燃料噴射弁
Document Type and Number:
Japanese Patent JP2001505975
Kind Code:
A
Abstract:
A fuel injection valve for an internal combustion engines is proposed, in which the control of the fuel injection valve member is controlled through the control of the pressure of a control chamber (25). This chamber is either relieved by means of a control valve (31) or is subjected to a high pressure, which brings the fuel injection valve member into the closed position. At the same time as the relief of the control chamber, a valve member (33) of a safety valve (32) that controls the fuel supply to the fuel injection valve is opened so that upon opening of the fuel injection valve, high-pressure fuel simultaneously also can travel by way of a pressure line (12) from a high-pressure fuel reservoir (14) to the injection openings (8) of the fuel injection valve (1). After the end of the injection, the valve member (33) is closed again, together with the closing of the fuel injection valve member (5). Consequently, in the event of a malfunction, unwanted fuel is prevented from reaching injection for a long period of time and consequently possibly destroying the associated engine due to overdosing.
Inventors:
Rudolf Heinz
Friedrich becking
Friedrich becking
Application Number:
JP51839099A
Publication Date:
May 08, 2001
Filing Date:
March 14, 1998
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
F02M47/02; F02M51/00; F02M47/00; F02M51/06; F02M59/46; F02M63/00; (IPC1-7): F02M47/00; F02M51/00
Attorney, Agent or Firm:
Toshio Yano (3 outside)