Abstract: The present invention relates to engines having common rail fuel injection systems. In traditional common rail fuel injection systems, each fuel injector utilized by the fuel system includes its own solenoid. These individual solenoids must cooperate to ensure that the proper amount of fuel is being injected from each injector at the proper time. It is believed in the art that a reduction in the number of moving or electrical components in the fuel injection system can improve robustness of the system. Therefore, the fuel injection system of the present invention includes fuel injectors that are controlled in operation by a common electronic actuator that is positioned remote from the fuel injectors.

Abstract: The present invention relates to fuel injectors having the ability to inject fuel at multiple pressures during an injection event. Traditional fuel injectors used in common rail fuel injection systems and unit pump fuel injection systems typically did not have the ability to inject fuel at multiple pressures during an injection event. However, engineers have learned that increased control over an injection event can lead to improved emissions by the fuel injectors. Therefore, the present invention utilizes an electronically controlled valve member that can direct the flow of fuel through a fuel injector during an injection event between a relatively restricted passageway and a relatively unrestricted passageway. The present invention finds particular application in both common rail fuel injection systems and electronic unit pump fuel injection systems used in diesel engines.

Abstract: A fuel pump module for a fuel tank in a vehicle includes a reservoir adapted to be disposed in the fuel tank and a partition disposed in the reservoir to divide the reservoir into a fuel sensing chamber and a fuel storage chamber. The fuel pump module also includes a conduit conducting return fuel from an engine of the vehicle to the fuel storage chamber of the reservoir. The fuel pump module includes a fuel pump disposed in the reservoir and having an inlet disposed in the fuel sensing chamber and an outlet disposed in the fuel storage chamber. The fuel pump module further includes a fuel usage priority valve to allow fuel from the fuel storage chamber to flow to the fuel sensing chamber to provide the inlet of the fuel pump with fuel from the fuel storage chamber.

Abstract: A cover that covers at least a portion of a fuel pressure regulator of an air assist fuel injection system and fluidly communicates pressurized gas to the fuel pressure regulator.

Abstract: A vehicle operates under various ambient conditions and various operating parameters. To compensate for the ambient condition and the operating parameters an engine, an intake air temperature is controlled. One of an ambient air flow restriction system or an intake air flow restriction system is used to vary the flow of a recipient ambient air flow through an air to air or the flow of a donor intake air flow through the aftercooler respectively. A plurality of louvers are operatively moved between a closed position and an open position with the ambient air flow restriction system. And, a flapper valve is operatively moved between a closed position and an open position with the intake air flow restriction system. A controller interprets a respective signal from a plurality of sensors to define the position of the plurality of louvers or to define the position of the flapper valve.

Abstract: An internal combustion engine exhaust gas recirculation (EGR) system includes an exhaust gas manifold back pressure valve insert assembly which has an exhaust gas recirculation (EGR) conduit interposed between exhaust manifold structure of the engine and atmospheric exhaust structure, and a valve mechanism disposed within the exhaust gas recirculation (EGR) conduit and movable between a fully closed position at which all exhaust gases from the engine pass to atmospheric exhaust through the atmospheric exhaust structure, and a fully opened position at which the valve mechanism partially occludes the atmospheric exhaust structure such that a sufficiently large back pressure is developed with respect to the atmospheric exhaust structure such that exhaust gases are forced through the exhaust gas recirculation (EGR) conduit.

Abstract: An internal combustion engine system, particularly suitable for a motor vehicle, is provided with an intake manifold, an exhaust manifold and an exhaust gas recirculation rate control system fluidly connected to the exhaust manifold and to the intake manifold. The exhaust gas recirculation rate control system includes at least two critical-flow nozzles, each critical-flow nozzle having an intake end and output end, the intake ends being fluidly coupled to the exhaust manifold; at least one valve, each valve being fluidly coupled with at least one output end; and a control module operatively connected to each valve for controlling exhaust gas flow therethrough. Some advantages of such a system is that the exhaust gas recirculation is accurately provided with an “open-loop” control system, thereby avoiding the use of a feedback system; the flow can be accurately determined under a choked-flow operating conditions; and the system can readily handle different exhaust gas flow rates.

Abstract: To provide a V-type internal combustion engine capable of forming a breather path having a sufficiently large flow path area without enlarging a cylinder block. A 5-cylinder V-type internal combustion engine includes a breather apparatus, a crankshaft having three crankpins and a cylinder block formed with a front bank of three cylinders and a rear bank of two cylinders. Two crankpins disposed at both ends are connected with two connecting rods connected to pistons fitted to cylinder bores formed in the front and the rear banks. A crankpin disposed in the middle is connected only with a connecting rod connected to a piston fitted to a cylinder bore formed at a middle of the front bank and in the rear bank. A breather path of a breather apparatus is formed at a space portion between the two cylinder bores at a position opposed to the cylinder bore in the middle.

Abstract: An internal combustion engine, particularly suitable for a motor vehicle, is provided with a plurality of combustion cylinders, at least a first exhaust manifold and a second exhaust manifold and at least one intake manifold. Each exhaust manifold is coupled with a plurality of the combustion cylinders. Each intake manifold is coupled with a plurality of the combustion cylinders. A first turbocharger includes a first turbine having at least one inlet and an outlet, and a first compressor having an inlet and an outlet. The at least one first turbine inlet is fluidly coupled with the first exhaust manifold. A second turbocharger includes a second turbine having an inlet and an outlet, and a second compressor having an inlet and an outlet. The second turbine inlet is fluidly coupled with the second exhaust manifold and includes a controllable, variable intake nozzle. The first compressor outlet is fluidly coupled with the second compressor inlet.

Abstract: A method and apparatus for gas-dynamic cold spraying a liner 3 in a cylinder 2 of an aluminum engine block 1 is provided. The gas-dynamic cold spray liner 3 allows the aluminum engine block 1 to have a hardened cylinder surface 10 without the induction of residual hoop stress within the aluminum engine block 1.

Abstract: A torque reduction assembly for use with an archery bow having a central riser includes a grip having a front surface adapted to be in contact with an archer's hand and a coupling for mounting the grip to the riser that allows a predetermined amount of rotational movement of the grip with respect to the riser along two axis while maintaining alignment between the grip and the riser along a third axis. The two axis of movement include a vertical axis generally extending along the length of the riser and a horizontal axis generally extending perpendicular to the riser and parallel to the front surface of the grip.

Abstract: A food chafer with a releasably lockable rolltop is provided. The chafer structure includes a framework for supporting a water pan which in turn supports a food pan therein. The rolltop is rotatably mounted to the framework with a lock mechanism. The rolltop is releasably lockable in a partially open position which allows access to food in the food pan. The rolltop is movable from the partially open position in a direction toward a closed position or in a direction toward a fully open position simply by application of force in the desired direction of movement. The working parts of the lock mechanism are completely self-contained so that no manipulation of external parts to lock or unlock the rolltop is required.

Abstract: A cooking appliance with a cooktop including at least one gas burner includes a control for sequentially delivering gas and igniting the gas to burner ports. The control comprises a valve with a responsive element for controlling gas flow to the burner ports, an ignition module for generating a drive signal to an ignitor, an electronic controller interfacing with the ignition module and coupled to a driver for actuating a responsive element in the valve. The driver that causes displacement of the responsive element includes a pick up actuator enabling the responsive element to initiate a status that opens the passageway. The valve also includes a holding actuator that enables the responsive element to maintain the status of the passageway as open when flame is detected at the burner.

Abstract: This invention concerns a cooking utensil having a base constituted by a composite structure including an insert plate in aluminum and an external plate in stainless steel with perforations allowing the insert plate in aluminum to be flush with it, characterized in that the central zone of the base is stamped to form a sunken disc zone without perforations, and in that the density of perforations has a maximum value in an intermediary annular band, the density of perforations being greater than 20%.

Abstract: In a solar energy collector assembly comprising a tubular heat collector member and a reflector extending along a length of the tubular heat collector member, the reflector consists of a modified compound parabolic concentrator having a bottom part defined by a linear segment in cross section. Thus, the shape of the reflector is significantly simplified without substantially impairing the efficiency in the collection of heat.

Abstract: The invention relates to a solar collector element having an absorber part and a tube for a heat transfer liquid connected thereto on a first side. The absorber part consisting of a composite material having a metallic substrate and an optically active coating on a second side of the substrate. The coating is a multilayer system having three layers. The top layer is a dielectric layer, preferably an oxide, fluoride or nitride layer of chemical composition MeOz, MeFr, MeNs, having a refractive index n<1.8. The middle layer is a chromium oxide layer of chemical composition CrOx. The bottom layer is gold, silver, copper, chromium, aluminium and/or molybdenum. The indices x, z, r and s indicate a stoichiometric or non-stoichiometric ratio in the oxides, fluorides or nitrides.

Abstract: An inhaler that uses capillary effects to output droplets of pharmaceutical product is described. The inhaler includes transducers and lenses to generate focused acoustic waves. The frequency and pulse width output of the transducers are set to cause capillary action in a reservoir of pharmaceutical product. The capillary action results in the ejection of small droplets of pharmaceutical product at low frequencies.

Abstract: An improved method and apparatus for delivering medication to the lungs is described. Acoustic ink printing technology is modified to operate as an inhaler that generates tiny droplets near a patient's nose or mouth. The tiny droplets are easily carried by air currents into the patient's lungs. The inhaler itself is preferably a battery operated portable device that can be easily carried and easily cleaned to avoid contaminating the medication.

Abstract: Aerosolizable formulations are disclosed comprised of a pharmaceutically acceptable carrier, a pharmaceutically active drug or detectably labeled compound and a compound which is recognized by its distinct color, taste and/or smell even when present in a small amount and a low concentration. Examples of such compounds include menthol, peppermint, cinnamon and vanilla flavors and water soluble dyes. The compounds can be designed so that they are only detectable by a specific area of the tongue or seen under a certain wavelength of light. The degree of detection of the color, taste or smell of the compound is an indication of the degree of success in the delivery of an aerosolized formulation to a patient. The formulation is preferably delivered from a device which monitors and records information relating to the patient's respiratory movement and also scans and analyzes the aerosol prior to inhalation.

Abstract: An actuator for an inhaler for delivering medicament by inhalation, comprising: a housing (22) which defines a cavity (34) for receiving a canister (8) which comprises a body (10) which defines a chamber containing medicament and a valve stem (13) which extends from the body (10), the body (10) and the valve stem (13) of the canister (8) being relatively movable between a first, non-actuated position in which the canister (8) is closed and a second, actuated position in which the canister (8) is open; a nozzle block (24) for receiving the valve stem (13) of the canister (8); a mouthpiece (21) for providing medicament from the nozzle block (24) to the mouth of a user; a locking mechanism (16) for selectively locking the canister (8) in the non-actuated position, which locking mechanism (16) when released allows for the actuation of the canister (8); and a loading mechanism (18) which comprises a biasing element (134) for loading one of the body (10) or the valve stem (13) of the canister (8) with an actuating

Abstract: An improved maximum expiratory pressure device and cough simulator including a flow tube having an integral mouthpiece at a patient input end, and a hinged door at an opposite or discharge end for sealing off the flow tube. The hinged door is held closed by a releasable trigger operable by the patient to release the door after pressure build up to simulate a cough. A foldable pressure monitoring port is provided to connect the maximum expiratory pressure device to a pressure gauge, if desired, for monitoring the expiratory pressure developed within the flow tube.

Abstract: A regulator assembly is provided for use in a respirator system to supply a regulated flow of air to a respirator head piece. The respirator assembly comprises a housing (15) having an air inlet port (17) for connection to a source of air at comparatively high pressure, and an air outlet port (23) for connection to the respirator head piece. The housing (15) contains an air pressure-reduction stage (19) in communication with the inlet port (17), and a noise-reduction stage (21) between the pressure-reduction stage and the outlet port (23). The noise reduction stage (21) comprises two, spaced, muffler discs (41, 43) the first of which is positioned adjacent the air outlet (39) of the pressure-reduction stage (19). A deflector plate (47) deflects the airflow from the pressure-reduction stage (19) through the first muffler disc (41), and thereby diffuses the air flow before it reaches the second muffler disc (43).

Abstract: A breathing support system comprises a housing, a plate with a central aperture forming an annular bearing surface and with peripheral air passageways and a cap with a base and a wall slidably extending into the distal region. Air ports have a tubular guide extending proximally from the base. A valve assembly includes a disc formed with a periphery selectively positionable in contact with the bearing surface and passageways and also includes a thin rod with a distal end adjustably received within the guide. A resilient member is positioned between the base and plate urging the base and cap distally and the disc into contact with the bearing surface and passageways. An exhaust valve adapted to allow the exhaling of air is located on an upper radial extent of an intermediate region of the housing. A primary port is adapted to receive and support a bottle of primary medication.

Abstract: A new and improved inhaler includes an accurate and consistent mechanical dose metering system that dispenses dry powdered medicament in discrete amounts or doses for patient inhalation, a pressure relief system that manages pressure within a medicament reservoir of the inhaler to ensure consistently dispensed doses, and a dose counting system indicating the number of doses remaining in the inhaler.

Abstract: A pre-metered dose assembly for consistently supplying precise doses of medicament is provided for a breath-actuated dry powder inhaler. The assembly includes a cap defining a dry powder delivery passageway for providing air to a dry powder supply port of a swirl chamber of a breath-actuated dry powder inhaler, and a magazine including a plurality of reservoirs for holding pre-metered doses of dry powder. One of the magazine and the cap is movable with respect to the other of the magazine and the cap for sequentially positioning the reservoirs within the delivery passageway of the cap. A breath-induced low pressure at an outlet port of the swirl chamber of the inhaler causes an air flow through the dry powder delivery passageway of the assembly and into the dry powder supply port of the swirl chamber that entrains dry powder from the reservoir positioned in the passageway for inhalation by a patient using the inhaler.

Abstract: An oxygen conserver having sensing and delivery ports simultaneously connected with a patient by a dual cannula. Inhalation by a patient produces a partial vacuum to move a sensing diaphragm to a venting position and cause a delivery diaphragm to move to an open position for supplying oxygen to the patient through the delivery port. A manually operable control valve enables continuous oxygen flow through the delivery port independently of operation of the sensing diaphragm.

Abstract: A variable volume ratio compound counterlung is disclosed for use with a semi-closed circuit breathing apparatus. The compound counterlung generally comprises a flexible bag member disposed within an outer counterlung member. The flexible bag member and the outer counterlung member are in communication with an exhaled gas area of a breathing loop. The flexible bag member having first and second ends which are attached to said outer counterlung. A pair of depth sensors operatively associated with the flexible bag member are provided to vary the volume of said flexible bag member with changes in depth. The flexible bag member is driven by the outer counterlung to discharge gas stored within the flexible bag member depending on the diver's respiratory minute volume. The collapsing of said outer counterlung member also returns gas stored within the outer counterlung back into the breathing loop.

Abstract: A personal pure air device where an air quality visualizer that can fit in a pocket like a pen samples ambient air quality for VOC's, poisonous gases, ozone, and possibly bacterial or viral content. The invention can contain a personal air bottle containing pure compressed air which can be dispensed through a regulator and tube to a nozzle to provide a plume of pure are around the user's nose and mouth providing a space of purified personal breathing air. The visualizer can be directly connected to the regulator to automatically start a flow of pure air when ambient air quality deteriorates, or the user can simply read the air visualizer and manually start the flow of pure air when desired through the use of valves.

Abstract: A nasal cushion (30) comprises a substantially triangularly shaped frame (32) from which extends a membrane (34). The frame (32) has a scalloped edge (36) by which the cushion (30) is affixed to a mask body. The membrane (34) has an aperture (38) into which the wearer's nose is received. The membrane (34) is spaced away from the rim (40) of the frame (32), and its outer surface (41) is of substantially the same shape as the rim (40). Respective notches (42, 44) receive the bridge of the wearer's nose. The wearer's nose is received through the aperture (38) into the chamber within the mask body (46). The seal forming portion (45) thus contacts both the surface of the wearer's nose and a portion of the wearer's face in the region between the base of the nose and the upper lip, and around the sides and over the bridge of the nose.

Abstract: A detecting device for correct endotracheal intubation includes a tube to be engaged into a trachea of a patient, a signal emitting device for engaging into the trachea of the patient and for emitting a signal, and a sensor for sensing the signal from the signal emitting device to detect the correct engagement of the tube in the trachea of the patient. The signal emitting device may be attached to the tube for engaging into the trachea together with the tube. A control device may treat the signal and may indicate the correct engagement of the tube in the trachea.

Abstract: A tattoo that is invisible to the naked eye until the tattoo is exposed to ultraviolet radiation, whereupon the tattoo becomes visible to the naked eye, and which reverts to invisible upon removal from exposure to ultraviolet radiation. The tattoo is formed by embedding in the skin a mixture including a non-pigmented carrier and one or more photochromic compounds that undergo a photochemical transformation from colorless to colored upon exposure to ultraviolet radiation, and which revert to colorless upon removal from exposure to ultraviolet radiation.

Abstract: Surgical methods and instruments are disclosed for performing port-access or closed-chest coronary artery bypass (CABG) surgery in multivessel coronary artery disease. In contrast to standard open-chest CABG surgery, which requires a median sternotomy or other gross thoracotomy to expose the patient's heart, port-access CABG surgery is performed through small incisions or access ports made through the intercostal spaces between the patient's ribs, resulting in greatly reduced pain and morbidity to the patient. In situ arterial bypass grafts, such as the internal mammary arteries and/or the right gastroepiploic artery, are prepared for grafting by thoracoscopic or laparoscopic takedown techniques. Free grafts, such as a saphenous vein graft or a free arterial graft, can be used to augment the in situ arterial grafts. The graft vessels are anastomosed to the coronary arteries under direct visualization through a cardioscopic microscope inserted through an intercostal access port.

Abstract: A guide for controlling the orientation of a medical device includes a cannula having a lumen therein for the medical device, and a guide member having a passage therein for receiving and directing the medical device, the guide member being movably mounted in the cannula for movement. The guide member can be magnetically responsive to an externally applied magnetic field, or can be magnetically responsive to an externally applied magnetic field when a magnetic medical device is in the passage, and/or it can be mechanically responsive.

Abstract: The present invention relates to an improved water pipe assembly for delivering smoke from burning tobacco and the like to the operator thereof.

Abstract: A method of fixing a flavorant for improving the small of a sidestream smoke of tobacco. This method includes applying, to tobacco wrapper paper, a tobacco sidestream smoke smell-improving agent including an ethanol or propylene glycol solution of the flavorant added to an emulsion of an ethylene-vinyl acetate copolymer having an ethylene content of 30% by weight or less, the emulsion having a solid content of 10 to 60% by weight, and drying it to fix the flavorant to the wrapper paper. The ethanol solution of the flavorant is added to the emulsion such that an amount of ethanol is 40% by weight or less with respect to 100% by weight of the emulsion, while the propylene glycol of the flavorant is added to the emulsion such that an amount of propylene glycol is 11% by weight or less with respect to 100% by weight of the emulsion.

Abstract: A method for providing flavorful and aromatic substances for use in a smoking article is disclosed. In the method, a mixture is provided including a reducing sugar source and a base catalyst. The mixture has a selectively enriched content of at least one free amino acid selected from the group consisting of serine, threonine, valine, leucine, and isoleucine. The mixture is then subjected to heat treatment for a time and under conditions sufficient to provide a flavorful and aromatic composition.

Abstract: A cigarette filter that has a scavenging effect on smoking induced gas phase free radicals. The filter ingredients are comprised of proanthocyanidins and include, but are not limited to, extracts of barks of pine tree, extracts of cones of cypress trees, extracts of grape seeds, and any combination thereof. Also, vitamin C and other known antioxidant ingredients may be added.

Abstract: A device for minimizing cigarette sidestream smoke and reducing free-burn rate of a burning cigarette is disclosed. The device comprises a non-combustible tubular element encasing an effective length of a tobacco charge of a cigarette located in the tubular element. The tubular element minimizes sidestream smoke emission from a burning tobacco charge and reduces free-burn rate of such burning tobacco charge to increase the number of puffs from the burning tobacco charge.

Abstract: According to the present invention, there is provided marking floss including dental floss impregnated with ink. Also provided is an abrasive floss including dental floss impregnated with an abrasive material. A method of marking teeth by running marking floss across the tooth in need of treatment thereby marking the areas in need of treatment is also provided. Also provided is a method of removing material from a tooth by running an abrasive floss across the tooth having excess material. A method of treating teeth by running a marking floss through the contact area in need of treatment, thereby marking areas in need of adjusting and running an abrasive floss through the contact area, thereby further adjusting the tightness of the contact.

Abstract: The present invention relates to a flavor enhanced protective dental floss comprising a dental floss and various dental desensitizing formulations that taste good. Regular use of such a flavour enhanced protective dental floss will therefore provide not only a significant reduction in the incidence of dental hypersensitivity but also provide all other benefits normally associated with flossing. As a result, consumers will now be able to achieved better overall results; inexpensively, safely, and in a much more pleasurable manner than is otherwise possible.

Abstract: Provided herein is a method for cleaning a process chamber for semiconductor and/or flat panel display manufacturing. This method comprises the steps of converting a non-cleaning feed gas to a cleaning gas in a remote location and then delivering the cleaning gas to the process chamber for cleaning. Such method may further comprise the step of activating the cleaning gas outside the chamber before the delivery of the gas to the chamber. Also provided is a method of eliminating non-cleaning feed gas from the cleaning gas by cryo condensation.

Abstract: The present invention relates to a method for cleaning a metal etching chamber. The method is accomplished by using waterless auto cleaning first, followed by an Argon clean. The waterless auto cleaning process comprises two steps. First, oxygen plasma is used to eliminate the byproducts produced from the side reaction with photo resistant in the etching reaction. Second, chlorine plasma is used to eliminate the byproducts produced from the side reaction with a metal thin film under a photo resistant and the residual oxygen of the previous step. The Argon clean can further eliminate the residual chlorine of the previous step and the products produced in the chemical reaction during the process of waterless auto clean.

Abstract: Ozone is used to reduce color filter material, previously deposited on substrates containing electronic sensors, to an ash that can easily be removed by rinsing with water, allowing the substrate to be reused.

Abstract: The present invention provides a semiconductor wafer cleaning brush assembly having an arbor with: (1) an expandable member configured to have a non-expanded position and an expanded position, and (2) a cleaning brush, locatable about the expandable member, having an inner diameter greater than an outer diameter of the expandable member in the non-expanded position and less than an outer diameter of the expandable member in the expanded position. The present invention further provides a method of replacing the cleaning brush of the assembly, and a method of cleaning a semiconductor wafer with such an assembly.

Abstract: A chemical cleaning method for cleaning an internal passage of an engine-run gas turbine engine airfoil wherein the airfoil is immersed in an inorganic hydroxide medium at superambient temperature and atmospheric pressure for a short time to remove accumulated oxides and dirt from the internal passage. The hydroxide medium can comprise molten KOH and immersion times of the engine-run airfoil not exceeding 10 minutes are involved.

Abstract: A method of prevention maintenance preventing parts of an etcher from being eroded is disclosed. First, a layer of hydrogen-free chemical compound is formed on surface of the parts of the etcher according to one embodiment of the present invention. Otherwise, the parts of the etcher are immersed into a tank containing hydrogen-free chemical compound according to another embodiment of the present invention. After that, a standard process of prevention maintenance is performed by a cleaning agent.

Abstract: Provided is a parts washer that includes a multi-tiered basin, a cleaning fluid and a biological component, living within the fluid, that breaks down organic waste. The multi-tiered basin includes a sink member with a false bottom, and a support grid and filter are interposed between the false bottom and a bottom panel of the sink member. The false bottom, support grid, and filter are readily removable from the sink member. The tank is partially filled with the cleaning fluid and a pump and conduit assembly direct a flow of the cleaning fluid to the basin. The cleaning fluid discharged into the basin flows through a drain hole in the false bottom, through the filter and support grid, and then through a drain hole in the bottom panel of the sink member back into the tank for reuse. The cleaning fluid includes, at least, a surfactant that functions to remove organic waste from the parts being washed.

Abstract: In the drying step of the single wafer type substrate cleaning system for cleaning wafers not stored in a cassette, in a sealed cleaning housing, a spin drying treatment is applied to the wafer when the wafer is supported and rotated at high speed while an inert gas for preventing oxidation is supplied to the face of the wafer, and the amount of the inert gas to be supplied to the face of the wafer is larger at the outer peripheral portion of the wafer than that supplied at the center thereof, thereby preventing oxidation on the face of the wafer effectively while optimizing the benefits of the single wafer type cleaning system.

Abstract: Process for the disintegration and cleaning of contaminant-containing raw paper stocks. The process includes producing a contaminant-containing suspension, feeding the contaminant-containing suspension to a closed coarse screen, drawing of a cleaned flow fraction from the closed coarse screen, and drawing off an overflow fraction containing an increased amount of contaminants from the coarse screen during at least about 80% of an operating time. The process also includes adjusting a volumetric mass flow of the overflow fraction to at least about 15% and maximally about 50% of a volumetric mass flow of an inflow into the coarse screen, and feeding the overflow fraction to a screening device, in which contaminants collected are sluiced out discontinuously as a further overflow fraction, thereby forming a further cleaned flow fraction.

Abstract: A method for cleaning objects (4) in a pressure tank (2) using a compressed clean fluid, which contains a gas and which is compressed and decompressed one or more times. According to the present invention, the cleaning fluid is decompressed to a pressure at which the gas has a volume that is a multiple of the volume of the compressed cleaning fluid in the pressure tank. In this manner, it is possible to remove particle-sized and other impurities from recesses, blind holes, or open cavities (6) in the objects.