Abstract: A drive unit for a motor vehicle, having an engine unit and an axle differential arranged on the engine unit, as well as having drive shafts for the vehicle wheels disposed at least partially in the crankcase. The separating plane between the crankcase bottom part and the oil bearing housing of the crankcase acts as the bearing for at least one drive shaft.

Abstract: A cylinder head for a direct-injection internal-combustion engine, has injection valves accommodated in openings in the cylinder head and secured in pairs by a respective fastening element formed as a hold-down device on the cylinder head. The hold-down device has two holding or fastening arms for the injection valves and is fastened to the cylinder head by way of a central fastening point. At the two ends of the hold-down device, dome-type receiving devices for a fuel connection piece of the injection valve are provided. The connection piece is at least radially elastically disposed in the receiving device.

Abstract: A drive unit for a motor vehicle, having an engine unit and an axle differential arranged on the engine unit, as well as having drive shafts for the vehicle wheels disposed at least partially in the crankcase. The separating plane between the crankcase bottom part and the oil bearing housing of the crankcase acts as the bearing for at least one drive shaft.

Abstract: A cylinder head for a direct-injection internal-combustion engine, has injection valves accommodated in openings in the cylinder head and secured in pairs by a respective fastening element formed as a hold-down device on the cylinder head. The hold-down device has two holding or fastening arms for the injection valves and is fastened to the cylinder head by way of a central fastening point. At the two ends of the hold-down device, dome-type receiving devices for a fuel connection piece of the injection valve are provided. The connection piece is at least radially elastically disposed in the receiving device.

Abstract: (57) Abstract: The invention relates to a medical laser treatment module, which comprises a laser radiation source for generating a fundamental wavelength &lgr;1 and which is highly variable in use. According to the invention, the medical laser treatment module is characterized in that it comprises at least one means (2, 3) for generating laser radiation of another wavelength &lgr;1, &lgr;3 and at least one means for optionally injecting the laser radiation of the fundamental wavelength &lgr;1 into the means for generating the wavelength &lgr;2, &lgr;3. The laser module designed in such a manner can be used, in particular, in dentistry and both as an intergratable module and as a fixed component of a treatment unit.