Robert Boschgmbh

Dietmar Van Der Linden

Francesco Lucarelli

Karl-Heinz Laepple

Andreas Dutt

Walter Fuchs

Dieter Tuchel

The invention relates to a high-pressure pump (), in particular for a motor vehicle, for conveying a fluid, in particular fuel, e.g. diesel fuel, comprising a drive shaft having at least one cam, at least one piston, at least one cylinder () for mounting the at least one cam, wherein the at least one piston is supported on the drive shaft by the at least one cam, so that a translational motion can be carried out by the at least one cam as a result of a rotary motion of the drive shaft, at least one cover cap (), which is attached indirectly or directly to the outside of the cylinder (), wherein one end () of the at least one cover cap () rests on a projection () of the remaining high-pressure pump () for the interlocking attachment of the end () of the cover cap () to the projection ().

High-pressure pump

The invention relates to a high-pressure fuel pump (), in particular of a common rail injection system of an internal combustion engine, having a pump cylinder head (), having an intake valve () arranged in the pump cylinder head () in the direction of a pump cylinder axis, and a high-pressure fuel outlet () arranged laterally on the pump cylinder head (), wherein a protective cap (,) at least partly covering the high-pressure fuel pump () is provided. According to the invention, a high-pressure fuel pump () having a protective cap () is provided, in which the protective cap () can be mounted without difficulty on an assembled high-pressure fuel pump (). This is achieved in that a plug () having a lateral lead connection () is placed on the electrically operated intake valve (), and the protective cap () is formed in two pieces and has two protective cap parts (,) that can be fitted to each other, or else in that a plug () having a lateral lead connection () is placed on the electrically operated intake valve (), and the protective cap () is formed annularly and has a free clearance slot () interrupting the ring.

High-pressure fuel pump

A valve having a valve member, which cooperates with a valve seat formed in a housing part in order to control a connection, and the valve seat has an at least approximately conical seat face, which is located at a transition of the connection from a portion of small diameter to a portion of large diameter. The seat face is adjoined, on its side oriented toward the portion of large diameter, by at least one face which is more markedly inclined relative to the longitudinal axis of the connection than the seat face, and on its side oriented toward the portion of small diameter, the seat face is adjoined by at least one face which is less markedly inclined relative to the longitudinal axis of the connection than the seat face.

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Rietenau, Germany

Dietmar Van Der Linden