Fuel injection valve for internal combustion engines and a method for producing same

Abstract

Abstract The invention relates to a fuel injection valve comprising a valve holding body (1) which is provided with a longitudinal axis (2). A central spring chamber (5) is designed in said body. A closing spring (6) that transmits a closing pressure to the valve member (30) is arranged in said spring chamber (5). The valve member engages with a valve seat (32) for controlling at least one injection opening (36). A supply channel (3) extends in the wall of the spring chamber (5) in parallel in relation to the longitudinal axis (2) of the valve holding body (1). Fuel being under high pressure can be supplied to the at least one injection opening (36) by means of said channel. The cross-section of the supply channel (3) is provided with a greater extent in the direction of circumference than in the radial direction in such a way that the wall area between the supply channel (3) and the spring chamber (5) or the outer case surface of the valve holding body (1) is greater than the wall area of a supply channel (3) having the same cross-sectional area and a circular cross-sectional contour.

Inventors

• 👤 Walter Kulovits
• 👤 Juergen Gottschling

Bibliographic Details