Abstract: The cage for breeding small animals according to the present invention comprises a casing with an opening on an upper surface thereof, and a lid for covering the opening of the casing. The lid comprises a frame body attached to an upper end edge of the casing, and an opening for a water supply apparatus to which the water supply apparatus is attached in an openable and closable fashion. A partition board is placed in the casing to divide the housing section within the casing into two. A ventilation section is provided in the partition board, for ventilation between one room and the other room of the divided housing section in the casing. A communicating section for placing a tip of a nozzle of the water supply apparatus is provided by cutting out the partition board.

Abstract: The Tooth Ball having a hollow natural leather colored ball with holes throughout also has a powdery substance that mixes with the pets saliva which produces a paste that releases in to the attached bristles and cleans the pets teeth and massages the gums leaving a very clean mouth for the pet.

Abstract: The invention is directed to a mixture of herbs that is cat-repellent. The mixture of herbs includes rosemary, peppermint, thyme, and clove. The herb mixture is generally contained within a sachet that further includes at least a cover which is permeable to the herbal odors. The inventive sachets may be placed around an object that has been sprayed by a cat to repel the cat and eliminate further cat-spraying.

Abstract: A green-light device for driving mice away includes a casing and a control circuit in the casing, wherein the control circuit comprises a power conversion circuit, a voltage regulating integrated circuit (IC), an amplifying circuit, a control knob, an ultrasonic frequency oscillator circuit, a logical-determination circuit and multiple green-light emitting diodes (LED) coupled to and controlled by the logical-determination circuit. The control knob is configured to be switched to lead the control circuit to create an ultrasonic wave or a special light wave such that mice can be cheated or driven away.

Abstract: A dog harness is comprised of a torso strap encircling a dog's chest, connected to a chest strap passing around the chest of a dog, and a shoulder strap passing over the back of a dog. The chest strap is provided with a elongate linker. A leash connector is fixed to both ends of the elongate linker. When a leash is attached to either leash connector, a directional pull on the leash causes the leash connector to slide in the direction of the pull, pulling the elongate linker to the side creating a noise detectable by the animal to assist in the training of the animal. If the leash becomes tight pulling the elongate linker all the way to the side it will move the pull off the center of the dog's chest, thus decreasing the opposition reflex.

Abstract: An apparatus for heating water comprises a tank formed by a tank wall and having a water inlet and a water outlet and a water collection pan in a bottom portion thereof and a burner located through a wall of the tank so as to position a flame originating therefrom above a surface of water located in the collection pan. The apparatus further includes an exhaust pipe extending from the tank, at least one water distribution manifold sized to be located in the exhaust pipe of the water heater in fluidic communication with a water supply and having a plurality of ports therein to distributed water therethrough and at least one permeable layer supported below the at least one water distribution manifold.

Abstract: A heating assembly for heating a liquid storage tank includes a heat exchanger tank supported in one wall of the storage tank to extend into the storage tank in contact with liquid stored therein. The heat exchanger tank contains a heat exchanger fluid therein which is heated by a heating apparatus extending through the heat exchanger tank whereby heat is only transferred to the liquid in the storage tank through the heat exchanger fluid. The heating apparatus extending through the heat exchanger tank may be a burner tube or an electrical resistance-type heating element according to different embodiments of the invention.

Abstract: A method of recovering oil from an oil well and producing steam for injection into an injection well is provided. After recovering an oil-water mixture from the oil well, oil is separated from the mixture to produce an oil product and produced water. In one process, the produced water is directed to an indirect fired steam generator which is powered by an independent boiler or steam generator. As water moves through the indirect fired steam generator, the same is heated to produce a steam-water mixture. The steam-water mixture is directed to the steam separator which separates the steam-water mixture into steam and water. The separated water is directed from the steam separator back to and through the indirect fired steam generator. This separated water is continued to be recycled through the indirect fired steam generator. Steam separated by the steam separator is directed into the injection well.

Abstract: The present invention concerns fuel production apparatus for use with a combustion device. The apparatus comprises a fuel cell (12) for generating a combustible gas for combustion by said combustion device and power supply means (6) for said fuel cell, said power supply means comprising means for converting energy from a source of waste energy (2) associated with the combustion device into electrical energy for powering said fuel cell.

Abstract: Methods and systems are provided for separately providing liquid-cooling to a cylinder head and a cylinder block. In one example, a method includes selectively pumping coolant with a single pump to each of a first cylinder head coolant jacket and a cylinder block coolant jacket based on engine temperatures. The method further includes discharging coolant from the first cylinder head coolant jacket to a heating circuit line including a vehicle interior heater and discharging coolant from the cylinder block cooling jacket and back to the single pump.

Abstract: The invention relates to a fuel distributor block for an internal combustion engine. Said fuel distributor block having a belt arrangement, wherein the belt arrangement comprises a belt, which is operatively connected to a belt pulley coupled to a shaft, for the purpose of driving an assembly, in particular an assembly of an engine, via a further belt pulley which is operatively connected to the belt, wherein a belt diverting device for diverting the belt is arranged on the fuel distributor block in order to minimize the spatial extent of the belt arrangement.

Abstract: Crankcase ventilation filter assemblies, features, components, and methods of assembly and use provide for convenient assembly; efficient space usage; and/or preferred operation.

Abstract: In a valve timing control system of an internal combustion engine employing both an electric-motor-driven intake valve timing control device (VTC) and an electric-motor-driven exhaust VTC having similar fundamental configurations, a maximum drive-efficiency motor-speed range of a first electric motor of the intake VTC and a maximum drive-efficiency motor-speed range of a second electric motor of the exhaust VTC are set to differ from each other depending on two different working ranges respectively suitable for the intake VTC and the exhaust VTC such that the maximum drive-efficiency motor-speed range of the intake VTC is set higher than that of the exhaust VTC. A reduction ratio of a first speed reducer configured to reduce a rotational speed of the first electric motor is set higher than that of a second speed reducer configured to reduce a rotational speed of the second electric motor.

Abstract: A variable valve timing arrangement for an engine system is disclosed. The variable valve timing arrangement includes a cam follower configured to follow a cam lobe. A pushrod is operably connected with the cam follower and a pushrod rotation mechanism is configured to selectively rotate the pushrod. Further, a cam follower adjustment mechanism is configured to reposition the cam follower based on the rotation of the pushrod.

Abstract: The invention relates to a camshaft, in particular for motor vehicle engines, comprising an outer shaft (1), an inner shaft (2) arranged coaxially in the outer shaft (1), first functional elements (3) rigidly arranged on the outer shaft (1), second functional elements (4a, 4b), which are rotatably arranged on the outer shaft (1) and fastened to the inner shaft (2) in a rotationally fixed manner, and a phase adjuster (5) connected to the outer shaft (1) and the inner shaft (2) for rotating the inner shaft (2) relative to the outer shaft (1), wherein the phase adjuster (5) is fastened to the inner shaft (2) and thereby a torque is applied. According to the invention, one of the functional elements (4a, 4b) connected to the inner shaft (2) in a rotationally fixed manner has tool accommodation surfaces (11) on the cylindrical surface side outside of a functional surface (12a, 12b). The invention further relates to such a functional element.

Abstract: A cam follower for actuating at least one gas exchange valve of an internal combustion engine is provided, including a cam contact roller that is supported by a plain bearing on a pin (13). A first sliding surface of the plain bearing faces the cam contact roller and a second sliding surface of the plain bearing faces the pin. The plain bearing has a lubricant reservoir, in order to provide at least one of the sliding surfaces of the plain bearing with lubricant, and the lubricant reservoir is arranged at a distance from the end sides of the plain bearing.

Abstract: An intake module an internal combustion engine of a motor vehicle includes at least one air duct element via which air is to be supplied to the internal combustion engine, and a cylinder head cover connected to the air duct element by means of which a cylinder head of the internal combustion engine is to be at least partially covered. A lubricant separation device and a cooling device for cooling the air are integrated into the intake module.

Abstract: An intake manifold is provided that controls swirl on entry to a combustion chamber. Each intake manifold includes a fin or rib portion positioned to reduce or eliminate swirl induced by the configuration of the intake manifold, particularly when used in a large engine having a left bank and a right bank of combustion chambers. By controlling swirl induced by the intake manifold, swirl consistency is improved between engine cylinders and between the left bank and the right bank, improving the consistency of power output and reducing emissions, particularly particulate emissions, also called smoke.

Abstract: Mobile assembly (500) for meshing with a toothed starter ring gear (C) of a heat engine comprises: a drive unit (1) provided with a pinion (11); a starter drive element (118); a pivoting control lever (20) including a lower forked end having two arms; and a friction clutch (300), pinion being rotationally fixed with a casing partially housing the drive element (118) and comprising the reaction plate (112) of the clutch. The lever (20) is associated with means for closing the clutch and is configured to move the casing axially, while the closure means are configured to move the drive element axially in order to tighten the friction clutch. The heat engine starter comprises such a mobile assembly.

Abstract: An internal combustion engine with a cylinder and with a crank drive is described herein. The internal combustion engine includes a crankshaft in which the crankshaft mounted in the crankcase has an associated crankshaft throw for the cylinder. The internal combustion engine further includes a compensation weight serving as a counterbalance for mass compensation arranged on the crankshaft on the side opposite the crankshaft throw, where the compensation weight includes an outward-facing side and a distance from a peripheral surface of the outward-facing side to a longitudinal axis of the crankshaft is not constant along the length of the peripheral surface of the outward-facing side.

Abstract: A cylinder head for an internal combustion engine is provided which include a valve spring boss having a central opening for accommodating a valve and having a contact area for retaining said valve. The contact area has a first portion and a second portion. The first portion being ring-shaped and delimited by the opening, and the second portion being radially protruding from the first portion.

Abstract: The present invention relates to an element (1) that works sliding, of an internal combustion engine and/or a compressor that undergoes friction and receives a coating of chrome nitride having an equiaxial morphology, with low porosity (lower than 1%) and with a crystallographic orientation predominantly (111), maintaining some reticulate in the orientation (200), so as to improve its resistance to wear and its toughness, prolonging the useful life of the element (1) that works sliding.

Abstract: A rotary engine with an outer body having an insert located in the peripheral offset from the rotor cavity such that a portion of the peripheral wall extends between the insert and the cavity. The insert has a pilot subchamber defined therein and the portion of the peripheral wall has at least one opening defined therethrough in communication with the at least one outlet opening of the insert and with the cavity. A method of combusting fuel into a rotary engine is also discussed.

Abstract: A gaseous state molecular combustion-supporting device includes a first bottle for accommodating liquid. The first bottle is provided with an intake pipe and a connecting pipe that is connected with a second bottle received therein with gas-liquid separating filter materials and disposed with an exhaust pipe, which is connected with an intake manifold of an engine. When gaseous state molecule produced via the gas-liquid separating filter materials passes through the exhaust pipe and gets into an engine to be mixed with the fuel oil to carry out combustion, hydrogen and oxygen decomposed out of the gaseous state molecule help attain an efficacy of perfect combustion, able to lessen exhaust emission, reduce carbon deposition in the engine, enable the engine to operate smoothly and lower the temperature of the whole engine.

Abstract: The present disclosure is directed to integrated injector/igniters providing efficient injection, ignition, and complete combustion of various types of fuels. One example of such an injectors/igniter can include a body having a base portion opposite a nozzle portion. The base portion receives the fuel into the body and the nozzle portion can be positioned adjacent to the combustion chamber. The injector further includes a valve carried by the nozzle portion that is movable between a closed position and an open position to inject the fuel into the combustion chamber. An actuator is coupled the valve and extends longitudinally through the body towards the base portion, and a driver is carried by the body and is movable between a first position and a second position. Thermochemical regeneration of waste heat produced by combustion and associated combustion events is captured and invested in endothermic reactions to improve efficiency of the combustion event.

Abstract: A system for transferring and igniting a fuel comprising a fuel supply and a cryogenic fuel processor connected to the fuel supply and operative to remove impurities from the fuel. The system includes a power supply and an injector-igniter. The injector-igniter includes an injector housing connected to the power supply and having a fuel inlet connected to the fuel processor. An actuator body is disposed in the housing and a conductor sleeve is connected to the power supply and supported between the actuator body and injector housing with a first annular gap between the injector housing and the conductor sleeve. There is also a second annular gap between the actuator body and conductor sleeve, wherein the first and second annular gaps are in fluid communication with the fuel inlet, whereby fuel provides a dielectric between the conductor sleeve and the injector housing.

Abstract: A system for actuating one or more engine valves for positive power operation and engine braking operation is disclosed. In a preferred embodiment, an exhaust valve bridge and intake valve bridge each receive valve actuations from two sets of rocker arms. Each valve bridge includes a sliding pin for actuating a single engine valve and an outer plunger disposed in the center of the valve bridge to actuate two engine valves through the bridge. The outer plunger of each valve bridge may be selectively locked to its valve bridge to provide positive power valve actuation. During engine braking, application of hydraulic pressure to the outer plungers may cause the respective valve bridges and outer plungers to unlock so that all engine braking valve actuations are provided from a rocker arm acting on one engine valve through the sliding pin.

Abstract: A method for operating an internal combustion engine is provided. The method includes during a first operating condition, operating two primary cylinders and two secondary cylinders to perform combustion, the two primary and secondary cylinders arranged in an inline configuration, the two primary cylinder adjacent to one another, the two secondary cylinders adjacent to one another, and the secondary cylinders positioned 175°-185° out of phase relative to the two primary cylinders and during a second operating condition, selectively deactivating the two secondary cylinders to perform combustion in only the two primary cylinders.

Abstract: An internal combustion engine having an anodic oxidation coating formed on at least a part of a wall surface that faces a combustion chamber, wherein the anodic oxidation coating has voids and nano-holes smaller than the voids; at least part of the voids are sealed with a sealant derived by converting a sealing agent; and at least a part of the nano-holes are not sealed.

Abstract: A dual fuel system provides first and second fuels to internal an engine. Both fuels are stored in a storage tank, separated by a flexible membrane. A fuel rail receives either or both of the fuel types and distributes the fuels to fuel injectors. Upon shutdown of the engine, the second fuel is evacuated from the fuel rail into an auxiliary tank. The first fuel is subsequently supplied to the fuel rail from the storage tank. Upon a restarting of the engine after a predetermined time subsequent to the shutdown of the engine, the first fuel from the fuel rail is used for combustion. The second fuel from the auxiliary tank is then slowly bled into the engine or intake manifold. As the first fuel from the storage tank continues to supply the fuel rail, and the second fuel begins to supplement the first fuel in the fuel rail.

Abstract: There are provided a multi-layer piezoelectric element in which an increase of oxygen vacancies in an electric-field concentration part of piezoelectric layers is suppressed and a decrease of an amount of displacement is suppressed, as well as to provide a piezoelectric actuator, an injection device and a fuel injection system provided with the multi-layer piezoelectric element. A multi-layer piezoelectric element includes a stacked body composed of piezoelectric layers and internal electrode layers which are stacked on each other, and a resin which evolves OH? when being heated. Accordingly, it is possible to obtain a multi-layer piezoelectric element in which an increase of oxygen vacancies in an electric-field concentration part of piezoelectric layers is suppressed and a decrease of an amount of displacement is suppressed.

Abstract: A pressure-assisted precision purge valve system is provided in an evaporative emission control system that provides flow of fuel vapor-air mixture from a fuel tank to an intake manifold. The pressure-assisted precision purge valve system comprises an absorbent canister through which the fuel vapor-air mixture flows, a purge valve configured to regulate flow of the fuel vapor-air mixture to the intake manifold and a fuel vapor pump configured to provide a forced flow to the purge valve dependent on a system differential pressure. The output of the purge valve can be connected to an upstream injection point and/or a downstream injection point of a forced induction device.

Abstract: The invention relates to a module (100) for supplying gas to an engine (6) of a motor vehicle, comprising a single dispenser (108), a gas cooler (107) provided with means (120, 146) for fixing to the cylinder head of said engine (6), and an intake box (109) connecting said single dispenser (108) to said cooler (107).

Abstract: The invention relates to a method for cooling compressed charge air of a turbocharged internal combustion engine, wherein starting from a compression temperature the compressed charge air is cooled in a first cooling device to a first lowered temperature and in a subsequent second cooling device is cooled to a second lowered temperature which is lower than the first lowered temperature, wherein after the second cooling device the compressed charge air is cooled in a third cooling device to a third lowered temperature which is lower than the second lowered temperature, wherein the cooling or the compressed charge air in the third cooling device is effected only intermittently during operation of the internal combustion engine.

Abstract: An exhaust gas recirculation device for a motor vehicle is disclosed with includes an unburnt gas line for guiding an unburnt gas flow and at least one exhaust gas feed line for supplying exhaust gas into the unburnt gas line. At least two discharge openings offset relative to each other in the circumferential direction of the unburnt gas line are provided in the unburnt gas line, by way of which the exhaust gas can be or is supplied to the unburnt gas line.

Abstract: The invention relates to a circulation valve for the exhaust gases of an engine comprising a body (30) defining a main conduit (31), intended to be connected to an exhaust line of the engine, and an auxiliary conduit (32) opening into said main conduit (31) in order to recirculate the exhaust gases, said valve further comprising a shutter (1) movable between two positions of closure, which prevents communication between the two conduits (31, 32), and full recirculation, which allows said conduits (31, 32) to be brought into communication, valve in which said body (30) and said shutter (1) are mutually configured such that, in said full recirculation position, said shutter (1) blocks said main conduit (31) by 65 to 95%.

Abstract: A positive crankcase ventilation system for an internal combustion engine (ICE) includes an engine crankcase, an intake manifold disposed in downstream gas flow communication with the engine crankcase, an air induction system disposed in upstream gas flow communication with the engine crankcase, and a vacuum pump disposed in gas flow communication between the air induction system and the engine crankcase. Operation of the vacuum pump facilitates air flow from the air induction system to the engine crankcase, and from the engine crankcase to the intake manifold.

Abstract: A trigger assembly for activating a firing mechanism. The trigger assembly includes a trigger having a sear arm with a first sear surface, and a firing element including a body portion with a second sear surface and an engagement portion for engagement with the firing mechanism, for activating the firing mechanism. The trigger assembly also includes a captured roller positioned for engagement with the first and second sear surfaces. The trigger is pivotable between a load position, in which the captured roller is held between the first and second sear surfaces, and a release position, in which the second sear surface is disengaged from the captured roller and the firing element is released. The firing element is pivotable between a first position, in which the firing element is held by the captured roller, and a second position, in which the firing element is disengaged from the captured roller.

Abstract: The ammunition supply device for a toy gun is detachably plugged in a chamber of the toy gun's body. The ammunition supply device contains a transmission module and a loading module interacting with the transmission module. The chamber stores the BBs and the loading module of the ammunition supply device loads the BBs for firing by the toy gun. After firing, the ammunition supply device can be conveniently removed and it is assured that no BBs are remained in the toy gun. With the present invention, a toy gun of increased capacity, convenient assembly, and enhanced safety is achieved.

Abstract: The present invention relates to an electrodeposited diamond wire saw using patterned non-conductive materials in which non-conductive materials are pre-patterned along the outer circumference of a wire on which diamond grit should not be rubbed, before the diamond grit is upset, in order to efficiently improve the manufacturing process, and to a method for manufacturing same. According to one preferred embodiment of the invention, the method for manufacturing an electrodeposited diamond wire saw includes: printing a masking solution on the outer circumference of a wire in a plurality of directions when the wire is inserted for patterning; and upsetting diamond grit on the remaining regions of the outer circumference of the wire, with the exception of the patterned region.

Abstract: An indexing unit of a gemstone processing machine and a method for processing gemstones is described herein. In an embodiment, the indexing unit of the gemstone processing machine includes a base plate having a plurality of axially extending holes. The base plate is mounted on a mounting shaft, and the mounting shaft is coupled to an indexing mechanism for actuating the base plate. Further, the indexing unit includes a plurality of holders. A holder is disposed in each of the plurality of axially extending holes of the base plate, and each holder is configured to hold a gemstone for processing on the gemstone processing machine.

Abstract: A grill includes a grill base and a grill lid that is in hinged communication with the grill base and includes an opening on a top wall of the grill lid. The grill further includes a grill flue that includes a front panel that is in hinged communication with the grill lid at the opening of the top wall of the grill lid, and an opening system that is coupled to the grill base and the grill flue, wherein the opening system assists in erecting the front panel as the grill lid is being opened.

Abstract: A cooking appliance is disclosed, comprising a wall-mounted cooking chamber, i.e. oven, with a bottom-opening door and separate countertop control panel, which facilitates use by individuals with disabilities, injuries or limited mobility, such as wheelchair users. The oven is wall-mounted, at a convenient distance, above a kitchen countertop, leaving a useful area of countertop underneath. Advantageously, it includes a low profile motor driven lift mechanism, housed against the wall beneath the oven and comprising guide rails for lowering the door to counter level and raising it to the closed, cooking position. The door provides a platform for items to be cooked. When lowered to counter level, a user can slide dishes between the platform and the adjacent countertop, without need for lifting as in a conventional stove or wall-mounted oven. An easy to reach, counter-level control unit enables the user to control oven functions including raising/lowering the door.

Abstract: The invention is directed to a burner grate (7), gas cooking hob, gas stove top and gas stove. For obtaining sufficient secondary air supply for inner flame exit ports (6) of a gas burner (4) of a gas cooking hob (3), a burner grate (7) adapted to be placed over the gas burner (4) and to support cooking vessels placed on the gas cooking hob (3) is proposed, which burner grate (7) comprises a feeder duct (12) extending from an outer region (13) to a mid section (14) thereof, and is adapted and implemented for feeding air towards flames of inner flame exit ports (6).

Abstract: A heating assembly can be used in a dual fuel heater to mix air with fuel to be combusted at the burner. The heating assembly can include a burner, a first nozzle, a second nozzle, a first conduit and a second conduit. The first conduit can have an opening configured to allow air to mix with fuel injected into the first conduit by the first nozzle.

Abstract: A solar heat exchange panel that includes a lower plate and an upper plate that together define an interior volume containing a flowing heat transfer fluid. The upper plate includes a plurality of upward extensions and downward extensions that cover the top surface of the solar heat transfer panel and are configured to capture solar radiant energy. The lower plate plate includes a plurality of upwardly extending hollow lower plate extensions. The lower plate extensions are aligned with the bottom portions of each upward extension of the upper plate and almost touching. Each of the downward extensions form the upper plate extend down and are joined to the base of the lower plate. In operation, a heat transfer fluid introduced into an inlet on one end of the solar heat transfer panel passes through the defined interior volume and is intimately contacted with the solar heated surfaces extending down into the solar heat transfer panel from the upper plate.

Abstract: A thin-sheet panel assembly. In one embodiment, a substantially rigid thin-sheet panel assembly having a non-rigid thin-sheet component includes the thin-sheet component which has selected plan area and shape, a backer having a plan shape and area substantially similar to the thin-sheet component, and plural riser elements of selected height and configuration each extending from the backer to distal ends connected to a reverse surface of the thin-sheet component, the riser elements being configured and disposed in an array which causes the assembly to have substantial rigidity in a selected direction in the thin-sheet component, and the thin-sheet panel assembly further includes a bar coupled to the backer and extending between at least one pair of adjacent riser elements of the plural riser elements.

Abstract: Fired heater tubes with improved resistance to corrosion and fouling suitable for use in thermal processing units of petroleum refineries and petrochemical plants are fabricated from a bulk alloy of an alumina-forming alloy which is capable of forming a stable oxide film on the surfaces of the tubes. The bulk alloy comprising about 3 wt. % to about 20 wt. % of Al, about 5 wt. % to about 30 wt. % Cr and at least one alloying component selected from Fe, Ni, Co, Si, Mn, B, C, N, P, Ga, Ge, As, In, Sn, Sb, Pb, Sc, La, Y, Ce, Ti, Zr, Hf, V, Nb, Ta, Mo, W, Re, Ru, Rh, Ir, Pd, Pt, Cu, Ag, Au and mixtures of these components.

Abstract: An endoscope (1) having a distal end being arranged to be inserted into a body cavity of a patient to be examined and a proximal end which is arranged to be held by a user of the endoscope. The endoscope further comprises a handle (2) arranged at the proximal end of the endoscope, an insertion portion (3) arranged at the distal end of the handle, a bending portion (4) arranged at the distal end of the insertion portion, and two control wires (40, 41) arranged between the handle and the bending portion, said control wires being used to control the bending of the bending portion via control inputs made at the handle.

Abstract: A cleaning device, system and method for use with an ETT or tracheostomy ventilation tube 60, a ventilator machine 900, a source(s) 602 of fluid (for example, pressurized or unpressurized) and a source(s) of suctioning 603 is disclosed. In some embodiments, the cleaning device is useful for cleaning an inner surface of the ventilation tube 60 and/or for preventing or hindering the accumulation of biofilm thereon. In some embodiments, it is possible to clean biofilm or any other material on the inner surface 201 by delivering fluid into an interior of the ventilation tube, wiping the tube interior with a width-expanded wiping element (e.g. an inflated balloon) by longitudinal motion of the wiping element, and suctioning material out of the ventilation tube ventilation tube.