Abstract: A metering assembly includes a motor removably coupled to a pump using a flange clamp. An annular connection flange is provided at one end of the motor housing; and a cooperating annular connection flange is provided at one end of the pump housing. The connection flanges have opposed, mating end surfaces which are located in flush relation with each other. The flange clamp includes a pair of arcuate clamping arms which are pivotally supported at one end, and a locking member connecting the other, distal free ends of the arms together, and which can be manually tightened and untightened, so that the flange clamp can be easily located around and tightened down around the annular connection flanges of the pump and motor to create a mechanical face seal between the pump and motor.

Abstract: An injector includes a plurality of flat, circular plates which provide fuel delivery and cooling of the injector. Fuel delivery passages in the plates have swirl chambers and spray orifices which are formed by chemical etching. A pair of fuel delivery plates define a fuel cavity therebetween, and include a plurality of radially-outwardly extending spokes, with the spokes from one fuel plate in adjacent, surface-to-surface relation with opposing spokes from the adjacent fuel plate. A fuel passage is defined between each of the opposing spokes, leading from the fuel cavity to a fuel outlet opening at the distal end of each spoke. A fuel tube delivers fuel to the fuel cavity between the plates, from where the fuel is then directed through the outlet openings. Downstream plates shape the fuel into appropriate sprays for ignition. An upstream cooling plate assembly directs air against the upstream fuel plate, and radially outwardly along the spokes of the upstream plate.

Abstract: A filter head and a spin-on fuel filter element where the filter head includes an inlet and an outlet. A threaded nipple extends downwardly from a base of the filter head and includes a central flow passage. A valve member located in the flow passage is normally biased closed. The valve member includes a threaded portion extending outwardly from the nipple. The filter element includes upper and lower end caps, and is located in a housing having a tap plate. The tap plate includes a threaded central opening for screwing the filter element onto the filter head. The upper end cap supports a threaded sleeve which is screwed onto the valve member. The sleeve/valve member combination has a different thread pitch than the tap plate/nipple combination, which moves the valve member to an open position when the filter element is installed on the filter head.

Abstract: A fuel injector assembly for dispensing fuel in the combustion chamber of a gas turbine engine, includes in one embodiment an elongated, multi-layered, convoluted nozzle feed strip having an internal passage for directing fuel through the length of the strip from the inlet end to an outlet end; and a cylindrical, multi-layered fuel dispensing nozzle unitary with the feed strip and fluidly connected to the outlet end of the feed strip for dispensing the fuel. The multi-layered feed strip and nozzle allow complex porting of fuel circuits through the injector. The internal fluid passages through the feed strip and nozzle are formed by etching. In another embodiment, the feed strip can be used for directing fuel from the manifold to one or more fuel injectors.

Abstract: A valve assembly includes a valve with a bobbin/valve body, a solenoid and a plunger. The bobbin/valve body is formed in one piece, and defines all of the valve's inlet/outlet ports and forms the entire support structure for the solenoid and the plunger. The valve may be connected to a manifold by press-fitting port nipples of the valve into corresponding channels in the manifold. The manifold is formed of a resilient, elastomeric material, and the port nipples include radial projecting barbs, which enable the valve to be fluidly-connected to the manifold without additional O-ring seals or other mechanical sealing devices. Fittings with barbs can likewise be press-fit in other channels of the manifold to connect the valve assembly with fluid lines or other components in the fluid system. The fittings can also be provided unitary with the manifold, and/or adhesively attached to the manifold and/or to the fluid lines and other components.

Abstract: A fluid transfer machine includes a positive displacement, rotary-type pumping mechanism driven by a drive shaft. The drive shaft is lubricated and cooled by locating the drive shaft in a primary flow path in the machine. Fluid is directed from the inlet through a passage that intersects a cavity surrounding the drive shaft, at a location between a pair of journal bearings. The fluid then continues directly to the suction side of the pumping mechanism. The drive shaft could also be located on the pressure side of the pumping mechanism. The primary flow cools and lubricates the drive shaft and drive shaft bearings, and reduces the size and complexity of the machine, as additional cooling and lubrication flow passage(s) are not required.

Abstract: A mounting device for mounting a tube to a refrigeration system component includes a connecting block and a clip, where the clip is inserted into a U-shaped recess in the block essentially perpendicular to the axis of the connecting block. The connecting block includes a body having end surfaces extending perpendicular to the axis of the body, and a U-shaped recess axially interconnecting the surfaces and opening outwardly from a side of the body for receipt of the tube. A U-shaped channel in the recess faces outwardly from the recess. The clip has a U-shaped body, and a pair of resilient tabs extend outwardly from the body in parallel relation to one another. The tabs of the clip are closely received in opposite sides of the U-shaped channel and the channel can be coined to retain the clip within the body. The tabs are bent inwardly toward one another by the curved inner end of the channel to facilitate retaining the clip within the channel.

Abstract: A quick-connect coupling includes a male half and a female half, where the female half includes a locking mechanism to couple the male half to the female half; and a valve assembly, which when the male half is coupled to the female half, opens a flow path through the coupling. The valve assembly includes an upstream, pressure balanced secondary valve and a downstream primary valve. The secondary valve maintains the downstream portion of the female coupling half at zero pressure, such that the male half can be easily connected. When the male half is removed, the primary and secondary valves of the valve assembly close to prevent fluid flow through the coupling. The female coupling also allows pressure to escape from the downstream end of the female half to atmosphere, should there be leakage around seals in the secondary valve after the female coupling half is disconnected.

Abstract: A fuel injector nozzle for dispensing fuel in the combustion chamber of a gas turbine engine, includes an elongated, multi-layered, convoluted nozzle feed strip having an internal passage for directing fuel through the length of the strip from the inlet end to an outlet end; and a cylindrical, multi-layered fuel dispensing nozzle unitary with the feed strip and fluidly connected to the outlet end of the feed strip for dispensing the fuel. The multi-layered feed strip and nozzle allows complex porting of fuel circuits through the injector. The internal fluid passages through the feed strip and nozzle are formed by etching.

Abstract: The invention relates to a method and apparatus for filtering a liquid. The filtering is conducted using one or several filter elements in the filter housing, the operation being based on the alternation of filtering stages and air flushing stages. According to the invention, upon transferring from the flushing stage to the filtering stage, the filter housing is filled with liquid so that the liquid pushes the flushing air in the housing from the upper end of the housing into a separate air container so that air is compressed to a higher pressure in the container. During the filtering stage, air remains in the container, and after the filtering stage, air compressed in the container is allowed to push liquid out of the filter housing with its pressure. Further, the connection between the air container and the filter housing can be arranged so that air compressed in the container participates in the backflushing of the filter elements.

Abstract: A fuel injector for a gas turbine engine of an aircraft has an inlet fitting, a fuel nozzle, and a housing stem with an internal conduit fluidly interconnecting the nozzle and fitting. The fuel nozzle includes a fuel swirler, which includes a plenum for receiving fuel from the conduit. A plurality of fuel passages direct fuel from the plenum to discharge orifices. The downstream ends of the passages are angled such that a swirl component is imparted to fuel exiting the discharge orifices. The swirling fuel is then applied to a prefilmer, which outwardly surrounds the fuel swirler. The passages in the fuel swirler are arranged such that the discharge orifices surround the entire nozzle for the even distribution of fuel. The plenum and passages are dimensioned and configured to receive and distribute the fuel for uniform spray patternization and low pressure drop, which provides improved combustion and flame stability.

Abstract: The invention relates to a connection of a metal pipe with a metal sleeve by means of cold-pressing deformation. The metal sleeve on its inside shell is provided with a pipe limit stop and the portion of the sleeve to be connected with the pipe end, along its inside shell, exhibits deformations before the pressing process. In one embodiment, the deformations of the inside shell of the metal sleeve are formed as ribs extending around the axis of the sleeve. The ribs on the inside shell of the metal sleeve are spaced at varying distance from each other. In another exemplary embodiment, the deformation of the inside shell of the sleeve has a convex curvature so that a frictionally-engaged connection is created after pressing.

Abstract: A stream selector for a process analyzer prevents contamination of one sample from previous samples without requiring a common outlet header. The stream selector includes a valve manifold having a base plate and a series of valve modules individually removeably attached to the base plate. The base plate includes all the process connections for the fluid lines. Each valve module includes a module body with a pair of valve assemblies. The valve assemblies in each module are operated simultaneously through a common actuation passage. A poppet valve in each valve assembly has a valve head with a double-seated seal. The double seated seal controls the flow of fluid through a vent passage in the valve body; and between inlet and outlet passages in the valve body. The outlet passage from one valve assembly is fluidly-connected to the inlet passage of an adjacent valve assembly to create a double-block and bleed configuration. The downstream valve assembly is then connected to the process analyzer.

Abstract: The invention relates to a filtering apparatus, the operation of which is based on alternating filtering and flushing stages. The apparatus comprises one or several filter elements placed into a filter housing supported by a casing, the filter housing being provided with an inlet assembly for the liquid flow to be filtered, an outlet assembly for the filtered liquid flow, and a channel for flushing the filter elements with air. Further, the filter housing is arranged to be prefilled with liquid before the next filtering stage is initiated after the flushing. According to the invention, a filling channel is directed into the filter housing through the casing, the channel being provided with a valve, which closes the channel at the same time as the filter housing is opened, for example, for changing the filter elements. Closing may be automatic.

Abstract: A backflushable filtering apparatus for fuel or luboil filter of a motor includes inlet and outlet flow channels, parallel filtering elements open from their ends, in which infiltration occurs from through their jackets, and washing organs at different ends of the filtering elements, the organs connecting alternately to different ends of the filtering elements to provide discharge channels for the backflushing of elements generated by the pressure of the filtered flow. Each of the filtering elements is divided in two by a solid partition or constriction between its ends so that the connected washing organ generates backflushing only to a part of the element length at a time. The parts of the filtering element are functionally independent, and the one part may be backflushed at the same time as the filtering goes on in the other part.

Abstract: An auto-drain unit for a compressed gas supply system, comprising: a first, main chamber including a liquid collection reservoir; a second, reference chamber; a discharge valve actuatable to discharge collected liquid from the liquid collection reservoir; a trigger mechanism for actuating the discharge valve; a diaphragm at least in part defining the liquid collection reservoir and the reference chamber, the diaphragm being configured to be movable under the weight of liquid collected in the liquid collection reservoir and operate the trigger mechanism when the weight of collected liquid exceeds a predetermined threshold; and a fluid conduit fluidly connecting the reference chamber to a location in the main chamber above the maximum possible liquid level therein.

Abstract: A discharge water system for the bilge of a boat includes a primary bilge discharge system and a supplemental bilge filtration system. The primary discharge system includes a pump operable when the fluid in the bilge collects above a predetermined level in the boat to discharge bilge water overboard. The supplemental system includes a filter assembly with filter media for removing hydrocarbons in bilge water passing through the media; and a pump operable when the water in the bilge collects to a selected level below the operating level “L” of the primary pump to pump bilge water to the filter assembly and then to discharge the essentially hydrocarbon-free bilge water overboard. The filter assembly includes primary secondary filter cartridge, both of which include hydrocarbon-absorbing media, and are connected in series. A pressure sensor and remote indicating device provide an indication of the primary filter cartridge becoming spent.

Abstract: A crankcase breather for an internal combustion engine has a housing including inlet ports which receive crankcase emissions from the engine, and an outlet port which directs oil-free gases back to the engine. A pair of filter elements are supported in the housing in adjacent relation. One filter element is a course filter to remove larger particulate in the emissions. The other filter element is a finer filter to remove smaller particulate, and to coalesce oil. A sump channel under the elements collects oil coalescing on the elements, and a drain opening in the channel to returns the oil to the engine. A second sump collects oil coalescing on the downstream surface of the second filter. An outlet port with a check valve in the second sump prevents oil being drawn into the breather on the clean side of the elements, but allows collected oil to drain back to the engine.

Abstract: A shut-off valve for pressurized fluids in an air cooling/heating apparatus that includes at least one condenser and at least one fluid evaporator communicating with each other by a pipe. The valve includes two ducts each containing a restrictor coaxially formed with a capillary designed to cause rapid expansion of the fluid when it emerges from the capillary, thus allowing expansion of the fluid in either the heating or cooling mode. The valve further includes a duct for sampling the pressurized fluid before expansion during operation in either the heating or cooling mode.

Abstract: A closed crankcase emission control system for an internal combustion engine includes a replaceable filter element having a ring of filter media; a first end cap at one end of the media ring; a sump container defined by a second end cap at the other end of the media ring and a cup-shaped valve pan fixed to the second end cap; and a check valve in the valve pan to block blow-by gas flow directly into the filter element during engine operation, and to allow collected oil to flow out of the sump container during engine idle or shut-down. A shut off valve is provided to prevent oil from passing through the emission control system to the engine. The shut off valve comprises a cylindrical float member with a supporting body and a seal, where the body includes a guide member. The float member could also be a ball valve. The float member floats with the level of oil in the housing, and can fluidly seal against a valve seat to prevent oil passing to the engine.