Abstract: A transfer assembly for a mechanically controllable valve train includes a transfer member in which a valve lift adjusting device is integrated. The transfer member is configured to be operatively connected to at least one gas exchange valve directly or indirectly via a coupling element, to be movably supported in a cylinder head via a bearing, and to be operatively connected to a camshaft and to the valve lift adjusting device so that different maximum lifts of the gas exchange valve can be set.

Abstract: A transfer assembly for a mechanically controllable valve train includes a transfer member in which a valve lift adjusting device is integrated. The transfer member is configured to be operatively connected to at least one gas exchange valve directly or indirectly via a coupling element, to be movably supported in a cylinder head via a bearing, and to be operatively connected to a camshaft and to the valve lift adjusting device so that different maximum lifts of the gas exchange valve can be set.

Abstract: A heat transfer unit for an internal combustion engine includes a first channel with an inlet and an outlet. The first channel is configured to have a fluid to be cooled flow therethrough. The second channel is configured to have a cooling fluid flow therethrough. A partition wall(s) is disposed to separate the first channel from the second channel. Ribs extend from partition wall(s) into the first channel and are disposed in a principal flow direction of the fluid to be cooled. The second channel comprises a first section and a second section in the principal flow direction. The ribs of the first section have a first cross section in a first flow-off portion that is constant in the principal flow direction. The ribs of the second section have a second cross section in a second flow-off portion that widens in the principal flow direction.

Abstract: A heat transmission unit includes a channel conducting a coolant, and a channel conducting a fluid to be cooled. The two channels are separated from each other by a wall provided with ribs extending therefrom into at least one of the two channels. The channel conducting the fluid to be cooled includes a fluid inlet and a fluid outlet. The channel is separated by a partition wall, arranged in flow direction, into a first and a second partial channel having a first partial inlet for fluid and a second partial inlet for fluid, and a first partial outlet for fluid and a second partial outlet for fluid. At least the first partial inlet for fluid is adapted to be shut off by a first shut-off device.

Abstract: A heat transfer unit for an internal combustion engine includes a first channel with an inlet and an outlet. The first channel is configured to have a fluid to be cooled flow therethrough. The second channel is configured to have a cooling fluid flow therethrough. A partition wall(s) is disposed to separate the first channel from the second channel. Ribs extend from partition wall(s) into the second channel and are disposed in a principal flow direction of the fluid to be cooled. The second channel comprises a first section and a second section in the principal flow direction. The ribs of the first section have a first cross section in a first flow-off portion that is constant in the principal flow direction. The ribs of the second section have a second cross section in a second flow-off portion that widens in the principal flow direction.

Abstract: Previous heat transmission units have only low cooling efficiencies in case of small fluid mass flows. According to the invention, it is proposed to configure a heat transmission unit (1) in such a manner that a channel (4) conducting the fluid to be cooled is separated, by a partition wall (14;23,24;29,30), into at least two separated partial channels (15,16), a first one of these channels being adapted to be shut off by a shut-off means (21;27;31) arranged at a first partial fluid inlet (17) of this channel. Preferably, in spite of the closed condition of this inlet cross section, full use is made of the existing cooler surface in that there is effected, by suitable arrangement of the partition walls (14;23,24;29, 30) and by further shut-off means (28;32), a deflection of the fluid mass flow in the heat transmission unit (1).

Abstract: A rotary piston pump in which a slide valve has a pivot bearing at each of its ends which supports a sliding block and wherein a theoretical slide valve length in the position in which the axes of symmetry of the shell rotor and slide valve are superimposed, is equal to the sum of the length along the slide valve measured between the pivot bearings plus two times the thickness of a sliding block measured between its pivot bearing and the wall of the shell. The sliding blocks have an outer surface with a curvature between the curvature of the outer surface of the rotor and the maximum curvature of the wall of the shell.