Abstract:
An apparatus (10) has a nozzle (12) including a nozzle orifice (14). There is a first chamber (22) adjacent and immediately downstream of the nozzle orifice (14). A first fluid supply (20) which supplies a first fluid is applied to the nozzle assembly wherein the first fluid passes through the orifice which exits downstream into the first chamber (22). A second fluid supply (28) supplies a second fluid, and is located downstream of said first fluid supply (20) in fluid communication with the first fluid supply (20). A flow limiter limits flow of the second fluid supply to the first chamber (22). The flow limiter may be a third fluid supply (32) applied to the first chamber, located intermediate said first and second fluid supplies. The flow limiter may alternatively be a throat formed (38) in a member, which a fluid jet applied by the first fluid supply passes through.
Abstract:
An oil scavenger system for a face seal (16, 18) including a lubricant scavenger system for retrieving lubricant which has escaped from a first side (14) to a second side (26) of a seal which seals a rotary shaft (10). The rotary shaft (10) is used on a compressor, pump, or any other machine which involves a lubricant seal about a rotary shaft. A cover (24) encases the second side of the seal, producing a first space (26) therebetween. A first pressure is maintained in the first space (26). A second space (14) is interconnected to the first space (26) whereby the lubricant may freely pass therebetween. The interconnection may be mounted exterior or interior of the machine. A second pressure is maintained in the second space (14) than in said first space (26). The second space (14) may actually be in communication with the first side of the seal. The second pressure is less than the first pressure.
Abstract:
A chuk (34) and drill bit (30) combination for insertion into a front end of a percussive, down the hole drill (2, 8) forming a part of a cluster drill assembly (1), for selectively engaging and disengaging the chuck and drill bit during drilling operations includes the bit and chuck each having splines (66, 72) and grooves (68, 74) adapted to overlap and engage each other in a first stop position and further adapted to disengage from each other in a second stop position, whereby the bit is restrained from rotational movement but capable of axial movement in the first stop position and capable of both axial and rotational movement in the second stop position, to provide automatic indexing of the bit so as to position the bit's gage drilling buttons (24) in a preferred position outboard of the drill centerline (48), to maintain maximum borehole diameter.
Abstract:
An open path low back pressure muffler (1) for reciprocating air motor pulsing exhaust providing an increased area inlet office (4), double flow path reversal with directional flow assistance and a turnable sound absorbing lined duct exit (3).
Abstract:
A guide vane (25) is provided in a pin fluffer (10) to assist in pulp mat retention during fluffing by providing a cyclic lift component to the mat as it passes over the vane (25) thereby also further increasing retention time obtained in the fluffer.
Abstract:
A predictive vibration monitoring system for a machine includes amicrocontroller (20) and a machine to be monitored (10). The machine to be monitored (10) includes at least one rotative element. At least one sensor (12) is operatively connected to the machine (10). The at least one sensor (12) is operable to convert mechanical motion generated by the at least one rotative element into a corresponding electrical signal. The at least one sensor (12) inputs the corresponding electrical signal to the microcontroller (20). A communication means (22) is disposed between the microcontroller (20) and the monitored machine (10). The communication means (22) enables the microcontroller (20) to correlate a predetermined operational state of the monitored machine (10) with a corresponding electrical signal generated by the at least one sensor (12). A memory means (38) communicates with the microcontroller (20) and stores a predetermined logic routine, at least one corresponding electrical signal and at least one predetermined key frequency of the at least one rotative element of the machine to be monitored (10). The microcontroller (20) utilizes the predetermined logic routine to process the corresponding electrical signal into corresponding vibration data of the monitored machine (10). The microcontroller (20) compares the corresponding vibration data with the at least one predetermined key frequency to predict the present and future condition of the at least one rotative element.
Abstract:
A drum (32) having a longitudinal axis, and an outer periphery, has a multiplicity of longitudinal, drainage grooves (16) formed therein, and a cylindrical sheath encloses the drum (32), the sheath having a multiplicity of holes (38) formed therein. The drum (32) is imperforate. A pair of the drums (32) is employed in a twin-roll press as press rolls, and one thereof is used in a single roll press with a compaction baffle. In one embodiment, the press roll (12, 14) has its grooves (16) formed in a herringbone pattern, the same pointed in the direction of rotation, to enhance drainage. In another embodiment, the longitudinal drainage grooves (16) have increasing depth, toward a mid-length of the press roll (12, 14) where they open into inner-drum drainage conduits which discharge the filtrate adjacent the rotaty axis of the press roll (12, 14).
Abstract:
An improved journal bearing (12) includes a first groove (36), in the direction of journal rotation, formed in the inner surface of the journal bearing. The first groove (36) extends axially along the length of the bearing and has opposed, open groove ends. A second groove (38), in the direction of journal rotation, is formed in the inner surface of the journal bearing. The second groove (38) extends axially along the length of the bearing and has opposed, closed ends. An orifice (20) is provided for supplying a lubricant to the inner surface of the journal bearing. The lubricant supply orifice (20) is disposed substantially centrally along the bearing length and intermediate the first and second grooves.
Abstract:
An apparatus provides air cooling for a scroll compressor having a fixed scroll (26) and an orbiting scroll (24). A plurality of fins (46) are fixedly attached on a back surface portion (44) of the fixed scroll. A cover assembly is disposed on the fins of the fixed scroll. The cover assembly and the fins of the fixed scroll from air passageways between the plurality of fins. A plurality of arcuately shaped fins (42) are fixedly attached on a back surface portion (40) of the orbiting scroll. A cover assembly (43) is disposed on the fins of the orbiting scroll. The cover assembly and the fins of the orbiting scroll form air passageways between the plurality of fins. A shroud assembly (22) surrounds the fixed and orbiting scrolls. The shroud assembly defines an interior portion (D) around the fixed and orbiting scrolls, an intake aperture (A) and a plurality of exhaust apertures (E, F). The shroud assembly has an exterior surface portion having a plurality of involutes formed thereon. The involutes define a plurality of air passageways (C) which communicate with the interior portion of the shroud assembly. A fan (30) draws a continuous volume of cooling air through the intake aperture, and accelerates the continuous volume of cooling air through the passageways defined by the involutes.
Abstract:
An apparatus (10) for producing elongate multi-fiber of extremely small size. A housing (12) is provided having first and second ends and a substantially smooth interior surface. A means is provided for introducing high consistency wood pulp into the housing. A source of ozone gas bleaches the high consistency pulp within the housing. A pin rotor (14) is rotatably mounted within the housing, and includes a plurality of pins (22), each having a tip (23). A means is provided for limiting the buildup of high consistency pulp fiber accretions on the pin tips.