Abstract: A filter insert for use in a three-stage fuel filter. The components inside the filter medium include a support dome, a coalescer, a separator that is affixed to a carrier, and an end disc. The support dome, carrier, and end disc are constructed so that, during the process of assembling the various components of the filter insert, these components are held in the proper position to complete the assembly of the filter insert, without the use of latching mechanisms. The carrier either rests directly on a contour of the support dome and/or forms a seal with an adjacent component, be it the support dome or another component that is in contact with the support dome, and in that way provides sufficient holding power to hold at least the support dome and the carrier along with its separator close to the end disc.

Abstract: A door hinge having inner and outer door hinge parts comprising fixing means (hinge plates) for mounting to the door frame and to the door. The outer door hinge part has two bearing portions fixedly connected by the fixing means, and the inner door hinge part has one bearing portion between the two bearing portions of the outer door hinge part. At least one bearing portion has a blind hole with a flat base, and a first cylindrical sliding cup element lies in the blind hole with its end face outer wall superficially on the base of the blind hole. The first sliding cup element has a ball socket-shaped wall containing a metal ball. A second cylindrical sliding cup element lies fully or partly in the blind hole and, on its end face facing the ball, has a concave ball socket-shaped wall lying superficially on the ball surface.

Abstract: A door hinge having inner and outer door hinge parts comprising fixing means (hinge plates) for mounting to the door frame and to the door. The outer door hinge part has two bearing portions fixedly connected by the fixing means, and the inner door hinge part has one bearing portion between the two bearing portions of the outer door hinge part. At least one bearing portion has a blind hole with a flat base, and a first cylindrical sliding cup element lies in the blind hole with its end face outer wall superficially on the base of the blind hole. The first sliding cup element has a ball socket-shaped wall containing a metal ball. A second cylindrical sliding cup element lies fully or partly in the blind hole and, on its end face facing the ball, has a concave ball socket-shaped wall lying superficially on the ball surface.

Abstract: A starting circuit arrangement in which a gas discharge lamp is assigned a supply circuit having at least one inductor arranged in series with the gas discharge lamp, wherein the starting circuit arrangement comprises a starting transformer connected on the primary side to a starting triggering circuit and connected on the secondary side to the lamp for the transmission of a starting pulse, an input energy source for the starting triggering circuit, a first switch means in the starting triggering circuit, an electronic control device which drives the first switch means. The starting circuit arrangement has, on the supply side, an input terminal connected in the supply circuit of the lamp between the inductor and the lamp, and a means provided for reproducing the phase profile of an AC supply variable of the lamp after starting of the lamp.

Abstract: An ignition circuit arrangement and method for a discharge lamp, with which there is associated a supply circuit for providing an ac supply voltage to the lamp, includes an ignition transformer which is connected to a trigger circuit on the primary side and to the lamp on the secondary side for transmitting an ignition pulse; an input energy source for the ignition trigger circuit; a first switch means in the trigger circuit and a control means which actuates the first switch means. To assist with the ignition process, an energy storage means controllable by the control means, in particular a voltage source controllable by the control means, is arranged in the supply circuit in series with the gas-discharge lamp. The controllable energy storage means serves to provide an additional energy supply during the ignition process beyond the actual ac supply for the lamp.

Abstract: In order to reduce the amount of wiring complexity involved in conventional starting devices for gas discharge lamps, the invention proposes a starting circuit arrangement in which the lamp, in order to provide an AC supply voltage (UN), is assigned a supply circuit, which has at least one inductor, which is arranged in series with the gas discharge lamp, and wherein the starting circuit arrangement comprises: a starting transformer, which is connected on the primary side to a starting triggering circuit and can be connected on the secondary side to the lamp for the transmission of a starting pulse; an input energy source for the starting triggering circuit; a first switch means in the starting triggering circuit; an electronic control device which drives the first switch means.

Abstract: In order further to improve the ignition of gas-discharge lamps, in particular high-pressure gas discharge lamps, there is proposed an ignition circuit arrangement for a discharge lamp, with which there is associated a supply circuit for providing an ac supply voltage to the lamp. The ignition circuit arrangement according to the invention (1) includes an ignition transformer (20) which is connected to a trigger circuit (2) on the primary side and to the lamp (3) on the secondary side for transmitting an ignition pulse; an input energy source (30) for the ignition trigger circuit; a first switch means (40) in the trigger circuit and a control means which actuates the first switch means. The ignition circuit arrangement according to the invention is distinguished in that to assist with the ignition process an energy storage means (10) controllable by the control means, in particular a voltage source controllable by the control means, is arranged in the supply circuit in series with the gas-discharge lamp (3).