Abstract:
Strömungsmaschine die einen Niederdruckbereich aufweist, mit zumindest einer Welle (1) , wobei der Niederdruckbereich einen Einströmbereich (2) aufweist, die Welle (1) zumindest an ihrem im Einströmbereich (2) angeordneten Einströmteil (6) einen warmfesten Werkstoff aufweist, wobei die Welle (1) an gegenüberliegend zum Einströmteil (6) angeordneten Abströmteilen (7) einen Werkstoff 26NiCrMoV14-5 und/oder 2SNiCrMoVll-5 und/oder 22CrNiMo9-9 aufweist.
Abstract:
A turbine rotor (103) comprises a hot shaft part (203) being operable at a high temperature and a cool shaft part (201) being operable at a lower temperature than the high temperature, the cool shaft part (201) adjoining said hot shaft part (203) . The cool shaft part (201) and the hot shaft part (203) are composed from the same nickel based superalloy with a nickel content in the range of 30 - 65 wt%.
Abstract:
Die Erfindung betrifft eine in einer Axialrichtung (19) ausgerichtete Turbinenwelle (2, 8) für eine Dampfturbinemit einem ersten (5, 13) einem zweiten Strömungsbereich (6, 14), wobei die Turbinenwelle (2, 8) im ersten Strömungsbereich (5, 13) ein erstes Material aufweist und im zweiten Strömungsbereich (6, 14) ein zweites Material aufweist, wobei das erste Material warmfeste Eigenschaften zeigt und das zweite Material kaltzähe Eigenschaften zeigt und die Turbinenwelle (2, 8) mittels einer Konstruktionsschweißnaht (4) gefertigt wird ohne vorherige Pufferlagenschweißung auf einem der beiden Materialien.
Abstract:
In an abrasion preventive structure of a reciprocating compressor, by forming a coating layer made of Ni-P alloy material having high hardness onto the surface of a frame at which front (92) and rear (93) resonance springs are contacted or spring mounting grooves (91a, 92a) of a spring supporting rod (91) or spring fixation protrusions or the inner circumference of a cylinder built-in type frame, although each resonance spring (92, 93) is rotated while repeating compression/relaxation, it is possible to prevent abrasion of the spring mounting grooves (91a, 92a) or the spring fixation protrusions, and accordingly reliability of the compressor can be improved.
Abstract:
The invention relates to novel wear and corrosion resistant parts for use in liquids and/or solids transportation and, in a particularly preferred embodiment, the invention relates to slurry pump parts, and methods for making the same. More specifically, the present invention relates to a novel means for joining together at least two parts, and the bodies formed thereby, for use in liquids and/or solids transportation and even more specifically to a novel means for forming a slurry pump suction side liner comprising joining a suction side wear plate to a substrate material or backing plate, which combination of materials may be used in a slurry pump.
Abstract:
A pump is disclosed. The pump may include at least one pumping mechanism. The at least one pumping mechanism may include a barrel formed of a substrate having a bore and a plunger formed of a substrate and slidably disposed within the bore in the barrel. The pump may further include a coating disposed on the plunger. The coating may include a main layer containing a tribological material and a sacrificial break-in layer disposed on the main layer, the break-in layer containing a tribological material.
Abstract:
A turbine engine air blower including a rotor disk that includes, on an outer periphery thereof, longitudinal ribs, each including a radial lug for attaching the disk onto a downstream compressor rotor. The flanks of the lugs form abutments for holding vanes that are mounted onto the disk. A mechanism protecting flanks of the lugs is circumferentially inserted between the lugs and the vanes.
Abstract:
A tachometer for a downhole motor includes: a tubular housing having a coupling for connection to a housing of the motor; and a probe. The probe: has a coupling for connection to a rotor of the motor, is movable relative to the tachometer housing, and has at least a portion disposed in a bore of the tachometer housing. The tachometer further includes electronics disposed in the tachometer housing and including: a battery; one or more proximity sensors for tracking an orbit of the probe; and a programmable logic controller (PLC). The PLC is operable: to receive the tracked orbit, and at least one of: to determine an angular speed of the probe using the tracked orbit, and to forecast a remaining lifespan of the motor using the tracked orbit.
Abstract:
A steam turbine facility suppresses the possibility of vibration from occurring and prevents a drastic increase in facility cost, thereby realizing an increase in size of the facility, even if steam conditions of 650° C. or higher are adopted. In the steam turbine facility including a high-pressure turbine, an intermediate-pressure turbine, and a low-pressure turbine, the intermediate-pressure turbine is separated into a first intermediate-pressure turbine on a high-temperature and high-pressure side and a second intermediate-pressure turbine on a low-temperature and low-temperature side. At least any one of the rotors and casings of the steam-introduction-side turbines into which steam with a temperature of 650° C. or higher is introduced is formed from Ni-based alloy, and at least any one of the overall rotors and the overall casings of the turbines are constructed by joining together a plurality of rotor members or casing members by welding.