Abstract: Disclosed is a method for sharply reducing diurnal breathing loss emissions from automotive evaporative emissions control systems by providing multiple layers, or stages, of adsorbents. On the fuel source-side of an emissions control system canister, high working capacity carbons are preferred in a first canister (adsorb) region. In subsequent canister region(s) on the vent-side, the preferred adsorbent should exhibit a flat or flattened adsorption isotherm on a volumetric basis and relatively lower capacity for high concentration vapors as compared with the fuel source-side adsorbent. Multiple approaches are described for attaining the preferred properties for the vent-side canister region. One approach is to use a filler and/or voidages as a volumetric diluent for flattening an adsorption isotherm. Another approach is to employ an adsorbent with the desired adsorption isotherm properties and to process it into an appropriate shape or form without necessarily requiring any special provision for dilution.

Abstract: An ion implantation process system, including an ion implanter apparatus for carrying out an ion implantation process. A supply of source gas for the ion implantation process is arranged to flow to the ion implanter apparatus, which discharges an effluent gas stream including ionization products of the source gas during the ion implantation process. The system includes an effluent abatement apparatus for removing hazardous effluent species from the effluent gas stream. The source gas may be furnished from a low pressure gas source in which the source gas is sorptively retained in a vessel on a sorbent medium having affinity for the source gas, and desorbed for dispensing to the process system. A novel scrubbing composition may be employed for effluent treatment, and the scrubbing composition breakthrough of scrubbable component may be monitored with a device such as a quartz microbalance monitor.

Abstract: An air cleaner includes a fan unit (1; 1′) and a filter unit (3) that is entirely replaceable, where the fan unit (1; 1′) and the filter unit (3) are mutually connected by a quick coupling and the filter unit includes a filter and an exterior casing that defines an exterior of the air cleaner when the air cleaner is in an operating position.

Abstract: An arrangement for separating a hydrophobic liquid phase from a gaseous stream includes a coalescer filter, a housing, a gas flow direction arrangement, and a liquid collection arrangement. The coalescer filter includes a non-woven media of fibers. The housing includes an interior having a gas flow inlet and a gas flow outlet. The liquid collection arrangement is positioned within the housing construction and is oriented for receiving liquid collected from the coalescer filter and drained therefrom. Methods for conducting the separations are also provided.

Abstract: A gas stream moisture condenser assembly for use in a fuel cell power plant includes a gas stream flow path which is formed from a monolithic open cell foam body. The foam body is preferably formed from a high temperature material such as stainless steel, nickel alloys and iron-aluminum alloys, or from a ceramic material. The foam body includes open cells or pores which are contained within a metal or ceramic lattice. Coolant tubes are in contact with the foam monolith so as to cool the lattice sufficiently to cause moisture in the gas stream to condense on a lattice surrounding the pores of the foam. The condensate migrates from the foam lattice into a reservoir. The condenser can be used to remove water from gas streams, such as a cathode exhaust stream or a mixed burner and cathode exhaust stream, of a fuel cell power plant.

Abstract: A filter for air extraction apparatus is disclosed, which is assembled from a porous material arranged to collect contaminants. The filter comprises a bag with a constricted inlet for receiving contaminated air. The bag is formed from a plurality of envelopes having filtering side walls and each of the envelopes has at least one orifice connected to an orifice of an adjacent envelope.

Abstract: The evaporative emission treatment device comprises a monolith concentrically disposed within a shell, and having one or more sealing agents concentrically disposed about the monolith and in between the monolith and housing. The shell comprises a first shell portion having an inlet portion at one end and a connection element disposed at the opposing end, and a second shell portion having an outlet portion at one end and a connection element disposed at the opposing end. The shell can also include structural features to prevent fluid leakage, enhance fluid flow, enable attachment to other evaporative emission system components, enable mounting to a vehicle, and internally seal the monolith and sealing agents.

Abstract: A method and apparatus for abatement of effluent from a CVD process using a source reagent having a metal organic loosely bound to a organic or organomettalic molecule such that upon exposure to heat such bond is readily cleavable, e.g., copper deposition process involving the formation of films on a substrate by metalorganic chemical vapor deposition (CVD) utilizing a precursor composition for such film formation. The abatement process in specific embodiments facilitates high efficiency abatement of effluents from copper deposition processes utilizing Cu(hfac)TMVS as a copper source reagent.

Abstract: A chemical filter unit 10 is made of a chemical filter 12 and a filter life detection sensor 1. The filter life detection sensor 1 is provided with an adsorption state detection sensor 3 and a reference sensor 4 to which a flow of air is blocked. The sensors 3 and 4 are made of the same filter material as the chemical filter 12 with a pair of electrodes sandwiching the filter material. An oscillation circuit, in which the sensors 3 and 4 constitute a part of the oscillating conditions, detects changes in impedance of the sensors 3 and 4 based on the changes in oscillation frequencies. A measurement of the adsorption state detection sensor 3 is corrected with a measurement of the reference sensor 4 in order to remove effects of temperature and humidity, obtain a measurement corresponding to the amount of adsorption of chemical substances, and decide on the timing of replacing the chemical filter based on the corrected measurement.

Abstract: The object of the present invention is to provide an air cleaner for a vehicle capable of preventing introduced air from directly striking an air cleaner element and of reducing a decrease in intake efficiency to a minimum. The air cleaner unit for a vehicle of the present invention is provided with an air cleaner box 12, an air cleaner element 16 mounted on an upper portion in the air cleaner box, an exhaust port 12a formed at the upper front portion of the air cleaner box 12, an intake port 12b formed on the side of the exhaust port at the front portion of the air cleaner, and an intake duct 15 inserted into the air cleaner box through the intake port, wherein the downstream of the intake duct is linearly mounted toward the lower rear portion in the air cleaner box and an opening in the downstream of the intake duct is arranged below the air cleaner element.

Abstract: An inside-out reverse flow air filter element (20) has a resiliendtly compressible molded lower end cap (48) having molded drainage surfaces including a molded raised central dome (72) shedding moisture radially outwardly and downwardly, a plurality of molded drainage holes (70, 74, 76, 78) spaced radially outwardly of and below the top of the central dome, and a plurality of radial segments (98, 100, 102, 104, 110, 112, 114, 116), an annular trough (80) and tapered slope surfaces (82, 84) providing desired drainage. A mold (130) has a plurality of upstanding segments (136, 138, 140, 142) having posts (144) and ramps (146) forming the drainage structure, and locator faces (152) engaging, guiding and locating the annular filter media (34) in the mold.

Abstract: A valve assembly for a vapor canister includes a partition adapted to be disposed in an interior chamber of the vapor canister and having at least one opening extending therethrough. The valve assembly also includes a valve connected to the partition and covering the at least one opening and being movable to provide variable flow of fluid therethrough.

Abstract: There is provided a three-dimensional adsorbent particle filter having a width, depth and at least one exposed outer face. The filter comprises darkly colored adsorbent particles having an L-value of 60 or less, preferably 20 or less providing a dark contrasting background. Reflective particles are present at the outer face of the filter at levels that allow a user to visually differentiate the filter based on the contrast between the reflective particles and the dark adsorbent particles. Different reflective particle or combinations of reflective particles are used with different filters to differentiate the filters each from the other.

Abstract: An adsorption bed arrangement includes a plurality of adsorption elements, a housing, and a gasket member. Each of the adsorption elements has a first adsorptive media and a second adsorptive media contained within a respective element. The first and second adsorptive medias remove different contaminants from the incoming air stream. For example, the first adsorptive media removes acidic contaminants and the second adsorptive media removes basic contaminants. Each of the adsorption elements is selectively openable to provide access to the adsorptive medias. The housing defines an interior, a plurality of inlet openings, and a plurality of outlet openings. The adsorption elements are positioned within the housing interior and the housing is selectively openable to provide access to the adsorption elements. The gasket member is between the housing and the adsorption elements.

Abstract: A liquid collection vessel for an air and liquid vacuum system of the type incorporating an air vacuum unit coupled to the vessel for drawing air and liquid therein. The vessel includes a generally cylindrical housing having an upper region. An ingress nozzle is disposed in the upper region of the housing and is adapted for receiving air and liquid there through and into the housing in response to low pressure created by the vacuum unit coupled thereto. The ingress nozzle is further disposed angularly within the housing for discharging air and liquid into the housing in a descending, tangential flow pattern. An air intake manifold is likewise disposed within the housing and coupled to the air vacuum unit for drawing air out of the housing.

Abstract: A rotary module for implementing a high frequency pressure swing adsorption process includes a stator having a number of function compartments opening into the stator valve faces, a rotor rotatably coupled to the stator and including a number of apertures opening into the rotor valve faces, and a self-regulating clearance-type valve seal positioned between the valve faces of the stator and rotor so as to regulate the rate of gas flow between the stator and the rotor. Each valve seal includes a sealing face disposed adjacent a respective one of the rotor valve faces and is pivotable relative to the respective rotor valve face for varying the gas flow rate in accordance with the clearance distance between the sealing face and the respective rotor valve face. Each valve seal also includes a passage which communicates with one of the function compartments for varying the clearance distance in response to a pressure differential between the passage and an approaching aperture.

Abstract: An arrangement for separating a hydrophobic liquid phase from a gaseous stream includes a coalescer filter, a housing, a gas flow direction arrangement, and a liquid collection arrangement. The coalescer filter includes a non-woven media of fibers. The housing includes an interior having a gas flow inlet and a gas flow outlet. The liquid collection arrangement is positioned within the housing construction and is oriented for receiving liquid collected from the coalescer filter and drained therefrom.

Abstract: A capillary column comprising a capillary of which the inner diameter is less than 1000 &mgr;m and a continuous porous silica gel which uniformly fills the capillary, said silica gel containing both continuous through pores having diameters ranging from 0.5-5 &mgr;m and mesopores having diameters ranging from 2-50 nm.

Abstract: A method and system for climate control uses a desiccant in an automobile. The desiccant removes humidity or moisture from air passing through the ventilation system. The desiccant is recharged or dried by application of a vacuum. The lower pressure generated by the vacuum reduces the temperature at which water evaporates or boils off of the desiccant material.

Abstract: An adsorbent unit including first and second porous containers, adsorbent in the first and second porous containers, a first and second end on each of the first and second containers, a yoke connecting the first ends, spaced first apertures in the yoke, a severance in the yoke extending between and in communication with the first apertures, a tab on each of the second ends of the first and second porous containers, and a second aperture in each of the tabs.