Abstract: An apparatus to control the flow rate of water between two pressurized areas, particularly for metered delivery of water to the packing of a pump's stuffing box. The object of the invention is to increase the useful life of the shaft of a process pump or centrifugal pump or any pump that maintains a stuffing box with standard packing material. The shaft is maintained by providing a steady drip-flow of water to the packing of a stuffing box, which helps to keep the packing moist and elastic, rather than brittle. Optimal moisture content of the packing lubricates the pump shaft, keeps the shaft at the proper temperature, and maintains the packing for a proper shaft seal, so as to prevent moisture from entering the gear box, or other locations that will cause permanent damage to the pump machinery. The water flow is controlled principally by a pressure-sensitive adjustment screw, having a soft-touch adjustment rubber gasket at its end.

Abstract: A scroll compressor is disclosed. In the disclosed scroll compressor, an oil discharge port is formed at a crankshaft of the scroll compressor for discharging a portion of the oil passing through an oil passage formed through the crankshaft to the outside of the crankshaft, a by-pass means is installed at the oil discharge port for opening or closing the oil discharge port by the centrifugal force of the oil generated by the rotation of the crankshaft, and when the compressor is operated at high speed, a portion of oil passing through the oil passage of the crankshaft can be discharged to the outside of the crankshaft and returns to an oil storing portion. Accordingly, excessive supply of oil to a compression portion is prevented, oil consumption is decreased, and the efficiency of volume of the compressor is heightened.

Abstract: A device for the supply of a liquid under pressure to a flow passage (13) in a member in a shaft suspension unit (1) of a centrifugal separator, which has a stationary casing (3) and a unit, which is resiliently and oscillation dampingly suspended in the casing (3) by at least one elastical element (10), the member forming a part of the composed unit. To be able to supply liquid to the member in a sample manner with a certain controllable flow which is made sure under overpressure a first supply channel portion (19) is connected to a liquid source (16) for the supply of liquid under pressure extending through the stationary casing (3). To the first supply channel portion (19) there is connected a second supply channel portion (21) extending through the elastical element (10). A third supply channel portion (23) is connected to the second supply channel portion (21), extending through the non-rotatable part of the composed unit and having an outlet opening (24) in the flow passage (13).

Abstract: A scroll compressor is provided within a sealed housing. Although the invention is shown with regard to a scroll compressor, it should be understood that aspects of the invention have benefit to any type sealed compressor. A lower bearing is attached directly to a housing end cap. The lower bearing is easily and accurately attached to the end cap, and reduces the complexity and cost of assembly of a sealed compressor. In particular, the end cap is provided with upset portions spaced circumferentially by gaps. The bearing is secured to the upset portions by welding. Oil can flow through the gaps and into a space beneath the bearing such that it can reach oil passages in the shaft.

Abstract: An oil suction propeller structure for a hermetically sealed compressor includes a rotor, a crank shaft pressure-inserted in the rotor, an oil guide piece pressure-inserted in a lower portion of the crank shaft, a lower wing fixedly inserted in the oil guide piece and soaked in an oil, an upper wing having a width thereof wider than that of the lower wing, and an intermediate portion extending from the lower wing and gradually broadening in width toward the upper wing. The oil suction propeller structure improves oil supply capacity, and minimizes a whirling sound and a dropping noise which may occur during the rotation of the oil guide piece and the oil suction propeller thereof, for thereby enhancing reliability of the hermetically sealed compressor.

Abstract: A compressor assembly including a housing having an oil sump containing a liquid lubricant, a compressor mechanism disposed within the housing, a vertical, rotatable shaft associated with the compressor mechanism and provided with a conduit having a downwardly directed open end extending beneath the surface level of the lubricant and through which oil is conveyed to the compressor mechanism, whereby the lubricant is drawn into the conduit open end, and a guard in surrounding relationship with, and having an aperture disposed beneath and proximate to, the conduit open end, the guard fixed relative to the housing, the sump in fluid communication with the conduit through the aperture.