Abstract: In a method of monitoring the operation of a plain bearing, a lubricant passage (15) of a bearing segment, this lubricating passage (15) being provided for jacking oil for example, is used during hydrodynamic operation of the plain bearing for extracting samples for a temperature measurement. For producing the measuring operation, a switch-over device (19) clears a flow path from the lubricant passage (15) into an outflow passage (23) in such a way that lubricant from the lubricating film (13) flows through the lubricant passage, the temperarature of this lubricant being determined by a temperature sensor (16, 18).

Abstract: A hydrodynamic plain bearing is provided and includes a raceway which is rotatable about an axis of rotation and which is mounted in the axial direction on a plurality of carrying segments (12). A lubricating oil film is formed between the raceway and the carrying segments (12) in a bearing gap. In such a plain bearing, a circulation of the lubricating oil is brought about in a simple way in that the plain bearing is equipped with an integrated pumping device (15) for pumping the lubricating oil around in a circuit.

Abstract: A bearing segment of a heavy-duty hydrodynamic axial plain bearing for an electric machine and including a stationary subassembly and a rotary subassembly is described. The bearing segment includes a sliding surface facing a front surface of the rotary subassembly and in close proximity to the front surface so as to form a lubricant gap containing a lubricant between the sliding surface and the front surface. The front surface slides relative to the sliding surface when the rotary subassembly is rotating so as to create a high pressure region and a low pressure region of the lubricant gap. The bearing segment also includes an equalizing duct interconnecting the high-pressure region and the low-pressure region.

Abstract: A hydrodynamic plain bearing is provided and includes a raceway which is rotatable about an axis of rotation and which is mounted in the axial direction on a plurality of carrying segments (12). A lubricating oil film is formed between the raceway and the carrying segments (12) in a bearing gap. In such a plain bearing, a circulation of the lubricating oil is brought about in a simple way in that the plain bearing is equipped with an integrated pumping device (15) for pumping the lubricating oil around in a circuit.

Abstract: A bearing arrangement for the rotor (11) of a rotating machine, in particular of a hydrogenerator (20) rotating about a vertical axis (19), comprises a combined axial and radial bearing (23) which is accommodated in a bearing body (24), on which supporting arms (27) are arranged for absorbing axial forces. The supporting arms (27) are supported with the free ends on a load-bearing base. Tangentially oriented connecting elements (29) are additionally provided between the bearing body (24) and a foundation (21), enclosing the rotor, for absorbing radial forces and for centering the bearing, which connecting elements (29) are fastened at a first end to the foundation (21) and are fastened at a second end to articulation points (31) arranged directly on the bearing body (24). This results in a material-saving construction, optimization of the individual bearing functions, and improved adjustability.

Abstract: A thermal turbomachine, an axial flow gas turbine (10) in particular, includes a rotor (16), which at its exit side is supported on a bearing (15), which is situated on a bearing saddle (14) within an annular inner part (11) of an exhaust casing, the bearing saddle (14) being supported on a foundation of the machine by means of a spring support (25). In such a turbomachine, the stiffness of the bearing support is improved or restored by attaching the bearing saddle (14) to the inner part (11) of the exhaust casing by a spring-loaded bolted connection (19, . . . .,22).

Abstract: A bearing arrangement for the rotor (11) of a rotating machine, in particular of a hydrogenerator (20) rotating about a vertical axis (19), comprises a combined axial and radial bearing (23) which is accommodated in a bearing body (24), on which supporting arms (27) are arranged for absorbing axial forces. The supporting arms (27) are supported with the free ends on a load-bearing base. Tangentially oriented connecting elements (29) are additionally provided between the bearing body (24) and a foundation (21), enclosing the rotor, for absorbing radial forces and for centering the bearing, which connecting elements (29) are fastened at a first end to the foundation (21) and are fastened at a second end to articulation points (31) arranged directly on the bearing body (24). This results in a material-saving construction, optimization of the individual bearing functions, and improved adjustability.

Abstract: In a method of monitoring the operation of a plain bearing, a lubricant passage (15) of a bearing segment, this lubricating passage (15) being provided for jacking oil for example, is used during hydrodynamic operation of the plain bearing for extracting samples for a temperature measurement. For producing the measuring operation, a switch-over device (19) clears a flow path from the lubricant passage (15) into an outflow passage (23) in such a way that lubricant from the lubricating film (13) flows through the lubricant passage, the temperarature of this lubricant being determined by a temperature sensor (16, 18).

Abstract: A thermal turbomachine, an axial flow gas turbine (10) in particular, includes a rotor (16), which at its exit side is supported on a bearing (15), which is situated on a bearing saddle (14) within an annular inner part (11) of an exhaust casing, the bearing saddle (14) being supported on a foundation of the machine by means of a spring support (25). In such a turbomachine, the stiffness of the bearing support is improved or restored by attaching the bearing saddle (14) to the inner part (11) of the exhaust casing by a spring-loaded bolted connection (19, . . . .,22).

Abstract: In a gas turbine having a plurality of vane carrier segments (2, 2') suspended coaxially in a machine casing (3) the guide vanes (11, 11') are held by their roots (14, 14') in such a manner that the root (14) of each guide vane engages in each case in two vane carrier segments (2, 2') adjoining one another in the axial direction. The roots (14) of the guide vanes (11) are provided with a collar (15) which extends in the axial direction to the inlet plane (16) of the rotor blade (12) lying upstream. The collar makes a seal there against the root (14') of another guide vane (11').

Abstract: In a gas turbine having a blade carrier (2) which is suspended coaxially in a turbine casing (3), both the turbine casing and the blade carrier are provided with a horizontal junction plane. An exhaust gas casing (5), whose bounding walls consist essentially of an annular inner part on the hub side and an annular outer part (7), is gastightly connected by means of an annular flange (7A) to an annular flange (3A) of the turbine casing (3). Between the annular flanges a two-part separating ring (13) having at least one conically extending face (13A) is disposed. The angle of the conically extending face (13A) has a self-locking effect.

Abstract: In a gas turbine, the exhaust gas casing (5) consists of a ring-shaped hub-end inner part (6) and a ring-shaped outer part (7), which parts bound a diffuser (9) and are provided with a horizontal split plane. The exhaust gas casing merges into an exhaust gas duct, whose boundary walls likewise consist of a ring-shaped hub-end inner part (16) and a ring-shaped outer part (17). The split locations between the exhaust gas casing and the exhaust gas duct are configured as flange connections (7A, 17A and 6A, 16A respectively). The flanges (7A, 17A and 6A and 16A respectively) at the split locations have a conically extending contact surface.

Abstract: In an axial flow gas turbine, the outlet blading followed by an exhaust casing (5) whose boundary walls essentially comprise a ring-shaped inner part (6) at the hub and a ring-shaped outer part (7) which delimit a diffusor (9). The outlet-end bearing arrangement (4, 11) of the turbomachine is arranged in the hollow space within the inner part. The bearing casing (11) can be repositioned by adjustment elements (12) arranged on the inner part (6) of the exhaust casing and is supported on the foundation via at least one sprung support (15).