Abstract: A position indicating valve wheel (1) having a digit ring (28) in rotating communication with an intermediate wheel (35), both of which are rotatably mounted in a wheel house (1). A driver (51) secured to a flange (48) of a decimal ring (40) which is also rotatably mounted in the wheel house (1). The driver (51) being engageable with the intermediate wheel (35) once every full rotation of the wheel house (1). A resilient collar (49) extending from the flange (48) and engageable with the wheel house (1). An exposed surface (29) of the digit ring (28) and an exposed flange (41) of the decimal ring (40) being located adjacent windows (20, 21) provided in the wheel house (1). A concentric sleeve (43) extended from the decimal ring and releasably mounted to a valve top piece (44).

Abstract: An array (32) of flow directing elements such as fan blades (20) for a turbine engine (10) is disclosed. Each blade in the array has a set of circumferentially shrouds (42, 44) whose contact edges (46, 48) abut each other during engine operation. A shroud angle .sigma. establishes the running chord angle .alpha. of the airfoil (30) portion of the array. Slight differences in the shroud angles of adjacent blades cause corresponding differences in the running chord angles so that the array is detuned and airfoil flutter is precluded.

Abstract: An apparatus and method for drying single or multiple parts or objects wherein the apparatus uses a drying chamber for containing said object or objects, said drying chamber having a closeable entryway for providing access to said drying chamber, the use of a sonic head disposed in said drying chamber attached to a source of drying liquid and an adjustable supply and drain attached to said drying chamber for introducing and removing said drying fluid to and from said drying chamber.

Abstract: A shroud panel for a turbine shroud includes forward and aft hooks which are used to support the panel radially above a plurality of turbine rotor blades. The panel forward hook has radially outer and inner lands, with the outer land being defined by a plurality of pads circumferentially spaced apart from each other by a respective recess. The panel forward hook is sized to engage the complementary forward slot of the turbine shroud substantially concentrically therein. The pads and recess restrict flow leakage around the panel forward hook for maintaining backflow margin and improving clearance control.

Abstract: A master/slave discharge valve assembly for pressurized fluid containment systems includes a primary valve chamber, for connection to a fluid pressure source, formed by an eccentrically disposed first longitudinal bore and a secondary valve chamber defined by a second bore generally parallel to that of the primary chamber, communicating at one end with the primary valve chamber and a the other end with a discharge port. A displaceable primary valve member is positioned within the primary valve chamber. A slave valve member and an actuating piston are to open the slave valve member and permit a holding portion of pressurized fluid to vent to the atmosphere, thereby permitting the pressurized fluid to open the first valve member and allow pressurized fluid out the discharge port. A master/slave valve assembly according to the invention is of lower cost to manufacture as well as simpler and sturdier in construction than known valves for carbon dioxide fire suppression systems.

Abstract: A pump body 10 of a drainage pump 1A comprises a pump chamber 12, inlet 15, and outlet 17. A rotary vane 300 mounted in the pump body 10 is coupled to a motor mounted above the pump body 10, and comprises a shaft 310 and four large-radial blades 320. Formed below the large-radial blades 320 are small-radial blades 350 to make a liquid at the inlet rise. Lower edges of the large-radial blades 320 are connected together by a disk 350 having an opening at the center and interceptively dividing the surface of the liquid rising from the inlet. Thus the amount of the liquid in contact with the large-radial blades 320 above the disk 350 decreases, and the load to the rotary vane decreases. At the same time, bubbles, noise and vibrations caused by bubbles also decrease. By surrounding the outer circumference of the large-radial blades 320 with a ring member, return water W5 moving back from the outlet 17 when the pump stops is damped by the wall member 360 and returns smoothly to the inlet 15.

Abstract: A valve having two elements each with a respective passageway, with one of the elements having a support and the other element having a shoulder, and a disc mounted between the elements and partially flexed over the support to form a seal on the shoulder preventing flow between the passageways until a relative pressure differential between the passageways fully flexes the disc over the support to allow flow between the passageways.

Abstract: Run-on linings for turbo-engines are arranged between the free ends of moving blades and a housing of a compressor or a turbine of a turbo-engine. The run-on linings are formed of a carrier and fiber bundles and are fastened on the circumference of the housing.

Abstract: This invention features a condensate drain that drains condensate from an impeller housing as well as an impeller housing having such a drain. This condensate drain is configured so as to allow the condensate from the exhaust to be continuously drained from the housing while the impeller is or is not operating. Preferably, the impeller housing includes a housing shell having an aperture in fluid communication with the housing interior. A top portion of the aperture extends above an interior surface of the housing shell to minimize the venturi effect of air flowing by the aperture responsive to rotation of the impeller. The interior surface of the housing further includes a dished region proximate the aperture, where the bottom of the dished region is arranged to correspond with a bottom edge of the aperture.

Abstract: A valve and method for adjusting the flow of a valve and for forming a turbulence in the flow. The flow is led tangentially from the inlet passage (2) into the space inside the valve body (1) in such a way that a turbulent flow is formed inside the valve body, outside the closure member. The flow volume is adjusted before the flow is brought into turbulence.

Abstract: An apparatus for covering the hopper of a material melting and dispensing apparatus is disclosed. The apparatus includes a cover lid engageable with a cover base. A hinge arrangement allows pivoting between the cover lid and cover base, and also allows for non-destructive removal of the cover lid from the cover base upon over-extension of the cover lid in the open direction.

Abstract: A pressure compensation system for a rotary pump prevents axial displacement of the pump shaft. The pump includes a shaft rotatable about a major axis extending centrally of the shaft, at least one impeller attached to the shaft, and a pump housing for enclosing the shaft and at least one pump impeller for generating fluid pressure for pumping upon rotation of the shaft and the at least one impeller. In these pumps, the fluid pressure can exert an axial thrust along the major axis of the shaft. Therefore, such pumps include means for thrust compensation during rotation of the shaft. The improvement in the means for thrust compensation includes a first set of permanent magnets arrayed around and attached to the shaft and a second set of permanent magnets arrayed on the pump housing. The second set of permanent magnets magnetically attracts the first set of permanent magnets to hold the shaft and the at least one impeller at a fixed position along the major axis of the shaft with respect to the pump housing.

Abstract: An arrangement for lowering the noise level in connection with a cooling layer in a pulp dryer having a heat-insulated bottom wall and top wall constituting a sound-attenuating construction and a wall at the inlet side of the cooling layer also constituting a sound-attenuating construction. At the outlet side of the air flow from the cooling layer in the pulp dryer, sound-attenuation baffles are arranged preferably perpendicular to or inclined in relation to the direction of the air flow and which are placed at a distance from one another.

Abstract: This invention relates to a butterfly valve incorporating means for accurately sensing the position of the valve disc within the valve body. One or two coils are embedded within the valve seal. A current is generated within one of the coils and a sensor connected either to the same coil or the other coil measures the change in induction characteristics of the coil as the disc is moved. The signal sensed by the sensor is indicative of the disc position.

Abstract: A tip shroud assembly comprising a segmented annular shroud, each segment comprising an first arcuate member having a first radially inner surface and a circumferentially extending channel extending radially outward therefrom, and a second arcuate member received within the channel in spaced relation to the first arcuate member thereby defining a circumferentially extending passage therebetween, and a plurality of baffles located in the passage, each baffle extending from the first arcuate member to the second arcuate member.

Abstract: A disk-shaped impeller having on its periphery a multiple radial vanes and a multiple radial impeller grooves is rotatably disposed in a pump housing. On each end surfaces of the impeller there are formed a plurality of C-shaped grooves. As the impeller is rotated at a higher speed, the fluid in the C-shaped grooves in the impeller acquires a velocity component in an impeller's axial direction to generate a force sufficient to push a pump cover and a pump casing in the axial direction. Accordingly, since it is avoided for the impeller to adhere either the pump cover or the pump casing, the space between the impeller and the housing inner wall is reduced while the possible leakage of the fluid is reduced.

Abstract: A coal burner with impeller for a furnace has a housing containing a plurality of sets of blades which direct the fuel from the coal nozzle into a plurality of non-intersecting flows directed obliquely towards the longitudinal axis of the housing. The non-intersecting flows create a fuel-rich devolatilization zone and an air-rich char burnout zone within the furnace and limit the flame length of the burner.

Abstract: An impeller of a centrifugal pump for transporting dirty liquids has transport elements, for example back-vanes or grooves disposed on the pressure side of a cover disk. The transport elements are arranged asymmetrically and are limited to one arc sector of the cover disk to create a transverse stream that rotates with the impeller. Solids which have penetrated into the space to the side of the wheel are carried out by this stream in the direction of the transport elements.

Abstract: A turbine casing is provided in two casing halves joined one to the other along a horizontal splitline having flanges with spaced boltholes. A circumferentially extending rib is provided about each casing half at a location just forward of the turbine buckets to minimize or eliminate distortion caused by internal pressure and meridional roll of the casing. One or more axially extending ribs is provided on each casing half. The axial ribs have a radial stiffness which substantially matches the stiffness and thermal response of the flanges.

Abstract: A lateral channel compressor having an annular flywheel housing (1) with air inlet stub (3) and air outlet stub (4). Attachments such as mufflers, filters, or safety valves are connected to stubs. A compact design and a lower manufacturing cost is achieved when the attachments are made in the form of a kit preferably having equal-length elements (I,II,III,IV) connectable directly to one another in the axial direction. The elements preferably have tubular main housings (11, 12) flush with one another. The filter and safety valve attachments (II, III, IV) each have a housing stub (13) projecting laterally from main housing (12) for mounting of filter elements and valve components.