FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINE

Title:

FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINE

Document Type and Number:

Japanese Patent JPS6047867

Kind Code:

A

Abstract:

A fuel injection nozzle for internal combustion engines, having an outwardly opening valve needle, which is connected with a piston upon which a damping cap is placed, which is supported on a shoulder integral with the housing. In the damping cap, a damping chamber is formed, which communicates via a throttle conduit with the flow path of the fuel. The diameter of the piston is smaller than the cross section enclosed by the valve seat, as a result of which an annular shoulder is attained, on which the unthrottled fuel pressure acts upon the valve needle in the opening direction. This disposition has the advantage that at lower rpm and smaller fuel quantities, the valve needle can be effectively braked even up to relatively long needle strokes, without the injection duration becoming overly long at higher rpm.

Inventors:

DEIITORITSUHI TORAHATE
HERUMUUTO GIISU

Application Number:

JP15218984A

Publication Date:

March 15, 1985

Filing Date:

July 24, 1984

Export Citation:

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Assignee:

BOSCH GMBH ROBERT

International Classes:

F02M61/08; F02M61/16; F02M61/20; (IPC1-7): F02M61/08; F02M61/16

Attorney, Agent or Firm:

Toshio Yano

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