Abstract: A liquid ring vacuum pump or compressor includes an off-centered housing and a rotor shaft assembly within the housing. The liquid ring vacuum pump or compressor also includes a port-containing one member having a frustoconical shape positioned in the rotor. The rotor rotates liquid around the cone member forming an off-centered cylindrical liquid ring that is shaped by and centered in the off-centered housing. The invented cone member has an inlet port having a parabolic shaped opening edge and a discharge port having a parabolic shaped closing edge. The invented cone member fully supports the liquid ring, at the intersection of the inner surface of the cylindrical liquid ring and the outer surface of the wall of the frustoconical cone member and inhibits the flow of water into the ports, maximizes the amount of gas being displaced through the cone member, increases the capacity of the liquid ring vacuum pump, and reduces the cost of operating the pump.

Abstract: A bearing housing, particularly for a liquid ring vacuum pump, having two cylindrical aligning members and the housing with two cylindrical groove-containing receiving members which provides self alignment of the bearing bracket with respect to the liquid ring vacuum pump.

Abstract: A bearing housing, particularly for a liquid ring pump, having an angular bottom projection for aligning the housing with and in a groove-containing receiving base with which it mates and to which it is attached, along with locator stops for accurate end-to-end spacing.

Abstract: An improved water delivery system for a liquid ring vacuum pump which delivers water through the side of the pump wall. A manifold system aligns outlet ports of the manifold with the inlet ports of the pump itself. Access ports with plugs or caps are also aligned with the pump inlet ports, to provide a quick and easy access to clean out sediment from the manifold. The improved manifold system allows efficient employment of secondary plant liquid in the operation of a liquid ring vacuum pump.

Abstract: An improved liquid ring vacuum pump apparatus and method for reducing wear between the cone and rotor vanes, by reducing the water flow contacting these parts, by injecting only fresh water into the seal segment while injecting secondary water into the pump through the housing. The apparatus includes dual water injectors, one injector at the periphery of the housing, and a second injector central within the housing, each of which is supplied by a different water source. A novel cone structure including grooves and notches for directing fluid to specific segments within the pump.

Abstract: An improved liquid ring vacuum pump apparatus for reducing wear between the cone and rotor vanes, in which a novel cone structure has a greater thickness and greater external radius in the seal segment than in the remaining segments. An alternative embodiment includes a replaceable wear plate in the seal segment. The cone structure includes grooves and notches for directing fluid to specific segments within the pump.