Abstract: The pump comprises at least one pump element which has a pump piston that is at least indirectly driven in a stroke movement by a drive shaft. A plunger having a plunger body is arranged between the drive shaft and the pump piston and is movably guided in a receiving device in the direction of the stroke movement of the pump piston and is supported on the drive shaft by means of a support element. Lubricant is supplied to the receiving device via a supply line and lubricant is conducted out of the receiving device via a discharge line into the plunger body to the support element. An annular gap filter is provided between the plunger body and the receiving device and is arranged between the supply line for supplying lubricant to the receiving device and the discharge line for discharging lubricant into the plunger body.

Abstract: The invention relates to a tool holder for holding a tool (1) adapted to be inserted in a machine tool which includes a spindle head as tool head (11). The tool holder comprises a support (2) for supporting a tool (1) at the periphery thereof and a tool holding means (4) including a load-bearing member (42) which is adapted to engage in the supported tool (1) at one longitudinal end of the tool (1) at the tool head (11) or is capable of bearing a tool head outer peripheral area at the longitudinal end of the supported tool (1). The tool holding means (4) is movable in a direction facing away from the support (2) for lifting the engagement/support at the tool head (11).

Abstract: A radial piston pump with a roller tappet in which the service life of the tappet is increased by delivering fuel to the contact faces between the tappet and the roller by way of a hydraulic connection between the tappet chamber and the engine chamber.

Abstract: A throttle element with a gap filter for use in a fuel pump is proposed, which is press-fitted into a conduit in the housing of an injection pump. By means of the press fitting, a good sealing action and at the same time low-cost production and mounting are attained. The throttle element can furthermore be designed economically and compactly.

Abstract: A throttle element with a gap filter for use in a fuel pump is proposed, which is press-fitted into a conduit in the housing of an injection pump. By means of the press fitting, a good sealing action and at the same time low-cost production and mounting are attained. The throttle element can furthermore be designed economically and compactly.