Abstract: A controller is provided to an engine including a variable valve timing unit for manipulating a valve timing of an intake valve of the engine. The controller includes an idle-continuation determining unit for determining whether an idling operation of the engine is in a continued state. The controller further includes a torque reserve control unit for executing a torque reserve control to advance the valve timing and increase an intake air quantity of the engine within a combustion limit of the engine when the idle-continuation determining unit determines that the idling operation is in the continued state. The controller further includes a torque correction unit for executing a torque correction control to retard the valve timing in the torque reserve control in at least one of conditions where: an auxiliary device exerts a load; the load is increased; and a vehicle starts moving.

Abstract: An oil supply circuit for a cylinder deactivation system having a simple structure and capable of being installed at a cylinder head without needing additional extraneous elements by forming an oil line within a cam shaft. An embodiment may include a hydraulic pump, a plurality of tappets for controlling opening of intake and exhaust valves, a first oil circuit connected to the hydraulic pump through an oil supply line and supplying a high pressure oil to the tappets, and a second oil circuit connected to the hydraulic pump and supplying an oil to the tappets. The second oil circuit includes an oil line formed in a hollow space of the cam shaft.

Abstract: A phaser (22) includes a housing (44), a rotor (42), a phaser control valve (36) and a regulated pressure control system (RPCS). The phaser control valve (36) directs fluid to shift the relative angular position of the rotor relative to the housing (44). The RPCS has a controller, which provides a set point based on engine parameters. A signal is then produced based on the set point and is sent to the direct control pressure regulator valve. (38) The direct control pressure regulator valve (38) has a supply port (5) and a control port (5), where the supply port (5) receives a supply fluid pressure from a source and regulates the pressure based on a signal, to a control pressure. The control pressure biases an end of the spool of the phase control valve (36) against a spring (66), such that the relative angular position of the housing (44) and the rotor (42) is shifted. A method of controlling a phaser (22) is also disclosed.

Abstract: An integrated gaseous fuel delivery system is provided. The system includes a storage tank to hold a gaseous fuel and a pressure regulation system disposed interior the storage tank and configured to regulate a pressure of gaseous fuel delivered from the storage tank.

Abstract: An inexpensive warm-up apparatus for an internal combustion engine having a simple structure and eliminating the need of forming a hole in a heat storage material retainer or the need for a seal around the hole or an electrical circuit. A heat storage material retainer (14) accommodating a latent heat type heat storage material (X) is arranged in a water jacket (13). The heat storage material retainer (14) has a nucleation device (2) that accelerates phase transition of the heat storage material in a supercooled state.

Abstract: An induction driven ignition system with an electrode projecting into the combustion chamber of a reciprocating internal combustion engine. The electrode is adjacent to but electrically insulated from an electrical conductor which receives current at frequencies between 100 to 400 kHz. Thermal insulation is also provided between the electrode and adjacent structure of the head. The induction driven ignition system causes the electrodes to rapidly and accurately heat up to very high temperatures. The electrodes may be formed in elongated edges throughout the combustion chamber to provide combustion initiation over a wide area.

Abstract: A manually operable fuel pump has a housing formed with an inlet port adapted to be connected to a supply of fuel and an outlet port adapted to be connected to a fuel-delivery system, a body in the housing between the ports and formed with a throughgoing main passage that is completely clear of obstructions. The body is shiftable between an operating position in which the main passage is aligned with the inlet and outlet ports and permits free flow therebetween and a pumping position, and pump means connected to the body manually operable for, in the pumping position, drawing fluid in through the inlet port and expelling it from the outlet port.

Abstract: A carburetor spacer is provided with isolation means to isolate the flow of atomized fuel from a carburetor to an intake manifold of an internal combustion engine comprising first and second hollow members fitting one inside the other and an elastomeric member interposed between said fitted hollow members. The elastomeric member also serving to thermally insulate the flow of fuel-oxidizer from heat produced by the engine. Thus, the isolation means helps prevent the fuel from reverting to a liquid state before being introduced into the cylinders of the engine and by reducing the heat input to the fuel-oxidizer mixture, less expansion of the mixture occurs before being introduced into the engine's cylinders. Less expansion means more of the mixture of the fuel-oxidizer can be input to the cylinders resulting in a greater power output by the engine.

Abstract: An intake assembly operable to communicate intake air to an internal combustion engine is provided. The intake assembly includes an inlet adapter defining a flow conduit through which the intake air may pass and an intake manifold. The inlet adapter is removably mounted with respect to the intake manifold. At least one resonance chamber is defined by at least one of the inlet adapter and the intake manifold. A gasket member is operable to substantially seal the inlet adapter with respect to the intake manifold. The gasket member defines at least one tuner neck operable to provide communication between the at least one resonance chamber and the flow conduit to form at least one Helmholtz resonator.

Abstract: In a method for forming an injection molded manifold, the portion of the mold that forms a septum is modified to provide a substantially thicker septum, preferably about 8.5 mm or greater. In the molding operation, one or more removable slides are inserted through this region of the mold, each slide being preferably about 2.5 mm thick and about 30 mm wide. The septum is cast around the slides which are then withdrawn from the septum after the polymer composite is set, resulting in a septum that is substantially thicker than a prior art septum, comprising first and second plates, each about 3 mm thick, and a plurality of open core voids about 2.5 mm high and about 30 mm wide between the plates. The improved septum is stiffer than a single 4 mm thick prior art septum, has a higher natural frequency, and improves suppression of engine noise.

Abstract: A rotary internal combustion engine has a hollow stator with inner cylindrical surface, and a right-prism rotor having rhombus-shape base with round angles and convex sides whose big diagonal equals the diameter of the stator. Two cavities within the rotor on opposite ends of the big diagonal of rhombus-shape base form principal combustion chambers with spark plugs. The hollow stator contains a diametrically opposed space separators sealingly engaged with the surface of the rotor. Variable volume intake, compression, power and exhaust chambers of the engine are formed by the inner surface of the stator, outer surface of the rotor and the side surfaces of the space separators. Intake and exhaust chambers are connected to the intake and exhaust systems via respective conduits. Compression and power chambers are connected to the combustion chambers via a slot openings controlled by the sliding covers moving within a radial rectangular grooves in the rotor.

Abstract: A paddling blades engine comprising two opposing discs (56) rotatably mounted to mount (72), a plurality of blades (58) rotatably mounted to discs (56) with their axis of rotation parallel to the axis of rotation of the discs (56), a mechanical means to maintain the blades (58) parallel to each other and to a non-rotating reference line connecting three and nine o'clock position, a core (68) with its external surface shaped by the traces of the inward edges of blades (58), and a housing (62) with its internal surface shaped by the traces of the outward edges of blades (58) and having intake (63) located between three and six o'clock position and an exhaust (65) located between six and nine o'clock position where discs (56) rotating in a counterclockwise direction. A fuel nozzle (64) and sparkplug (66) are installed on housing (62) at one and twelve o'clock positions respectively. Housing (62) is fastened to mount (72) by covers (24). Power is extracted by shaft (34) gears (30) and internal gears (52).

Abstract: A method for operating an internal combustion engine, injects fuel directly into a combustion chamber as a main injection, a postinjection and optionally also as a preinjection. An injection nozzle with a plurality of injection bores effects the preinjection and the postinjection preferably which is carried out cyclically. To minimize wetting of the combustion chamber walls, during the postinjection the partial quantities of fuel and a lift of the nozzle needle of the injection nozzle are set so that, for each partial quantity of the postinjection injected into the combustion chamber, the reach of the respective fuel jet in the combustion chamber is limited and the reach is less than the distance to a combustion chamber boundary.

Abstract: Fuel, especially ethanol, is injected in an internal combustion engine via at least one injection device into a combustion chamber, with the injection pressure of the fuel being temporarily increased during the starting phase of the internal combustion engine. The injected fuel quantity is divided among several injections in the intake phase during the start of the internal combustion engine, with at least two injections being performed during the intake phase and with the multiple injections being performed with high injection pressure already in the dragging phase for the first injections. The starting behavior can be improved when the quantity of fuel of the last fuel injection is lower than the quantity of each preceding fuel injection.

Abstract: When a homogeneous combustion is to be executed at a lean air-fuel ratio, a tumbling flow that whirls in the cylinder descending in the cylinder bore on the exhaust valve side and ascending in the cylinder bore on the intake valve side, is intensified by the fuel that is injected from the fuel injection valve toward the exhaust valve side in the cylinder bore in the last stage of the intake stroke.

Abstract: An ignition device, including: an ignition coil (1) having a primary coil and a secondary coil; a switching element (5) for causing a primary current to be conducted through and shut off from the primary coil of the ignition coil; a waveform shaping circuit (6) for shaping a waveform of an ignition signal transmitted from an outside through a signal line to supply a conduction signal thus obtained to the switching element; ion current detecting means (8, 9) connected to the secondary coil of the ignition coil, for detecting an ion current flowing through the secondary coil; and ion signal generating means (10, 11, 12) for outputting an ion signal, which indicates the ion current detected for a predetermined period after the conduction signal of the waveform shaping circuit has been turned off, to the outside through the signal line while invalidating the conduction signal from the waveform shaping circuit.

Abstract: A fuel enrichment device includes a body forming a first fuel chamber and a second fuel chamber. The second fuel chamber is adapted to contain a predetermined amount of enriching fuel to be provided to an engine. A normally open valve connects the first fuel chamber to the second fuel chamber. A normally closed valve for controls the provision of enriching fuel to the engine. The normally closed valve is open whenever the normally open valve is closed.

Abstract: Provided in a gas-feed system, in particular a system for supplying methane or hydrogen to an internal-combustion engine, is an electronic pressure-reducer or pressure-regulator unit, integrated in which are both a pressure-reducing valve for reducing the pressure of the gas coming from the fuel tank to a value suitable for supplying a distribution manifold or rail and a modulating solenoid valve that functions as modulator of the degree of pressure reduction performed by the pressure-reducing valve. Likewise made in the body of said unit are passages that provide the communications of said valves with one another and of each of said valves with the inlet and the outlet for the gas in said unit. Furthermore, the unit incorporates an electronic control module for controlling the modulating solenoid valve.

Abstract: A fuel injector for use with LPG or other volatile fuels has fuel inlets through a cylindrical wall of a valve group tube assembly. Fuel venting is along a longitudinal axis of the fuel injector to an end opposite the injection end. An O-ring retaining cup is welded to the tube assembly above and below the fuel inlets to seal these members and to maintain alignment of holes in the cup with the fuel inlets.

Abstract: A method for controlling an internal combustion engine having a plurality of cylinders using electronic valve actuation, including operating a first portion of the cylinders in a homogeneous charge compression ignition (HCCI) mode, operating a second portion of the cylinders in a non-HCCI mode, and adjusting the valve timing of the second portion of cylinders to dynamically load level the engine in response to a transient torque demand. A system for controlling a multiple cylinder internal combustion engine, including a first group of cylinders to operate in an HCCI mode, a second group of cylinders to operate in a non-HCCI mode, and an engine controller operably coupled to the first and second groups of cylinders, said controller to adjust the valve timing of the second group of cylinders to dynamically load level the engine in response to a transient torque demand.

Abstract: A control circuit (100) for at least one actuator (101, 102, 103, 201, 202, 203), in particular for a capacitive actuator (101, 102, 103, 201, 202, 203) of an injection system of an internal combustion engine (1) is described, in which a control current can be applied to the actuator (101, 102, 103, 201, 202, 203).

Abstract: The present invention provides systems which can automatically switch passages of a fuel supply line and a fuel return line when the pressure in a fuel return line becomes higher than a predetermined pressure. Even when the fuel supply and return lines are incorrectly connected, the present systems can prevent the problem of damages to a fuel supply system and fuel leakage which may be caused by an increased fuel pressure.

Abstract: The offered internal combustion engine may be characterized by two mobile opposite cylinders fixed rigidly to each other. Said cylinders move simultaneously in the same direction. The motions of said cylinders are being transferred via connecting rod and hinges to the rotational movements of the crankshaft. Inside the opposite cylinders there are two immovable opposite pistons rigidly fixed to each other and rigidly secured to the housing of the engine. There are two working cavities of shifting volume between the corresponding opposite pistons and opposite cylinders. The inlet and exhaust valves with inlet and exhaust manifolds, injectors with fuel pipes, spark-plugs with high voltage wires are placed on the said pistons. The compressor rigidly connected with the engine housing and through the air inlet manifold supplies air under high pressure to the working cavities of the engine.

Abstract: A diagnostic control system for a purge valve that regulates fuel vapor flow from a fuel system into an intake manifold for an engine includes a calculation module and a malfunction module. The calculation module estimates a plurality of areas based on a plurality of pressure signals and calculates an average rate of increase of vacuum pressure in the fuel system during operation of the purge valve. The malfunction module determines whether the average rate of increase of vacuum pressure is within a predetermined range generating a purge valve functioning signal, and generates a purge valve malfunction signal when the average rate of increase of vacuum pressure is not within the predetermined range.

Abstract: An exhaust-gas introducing passage is branched, on an outlet side of a valve, into parts, correspondingly to the number of an exhaust port of an internal combustion engine and the branching section is located at a position directly opposed to a movable valving element of the valve so as to cause exhaust gas to easily flow only in the direction of the outlet, which has introducing passages of exhaust gas communicating with a plurality of intake ports of the internal combustion engine to approach as near as possible a state in which each of the introducing passages is isolated from another introducing passages, and they assume an aspect just as if the introducing passages do not substantially communicate with one another.

Abstract: The present invention relates to an indirect-injection internal-combustion engine, notably a supercharged engine, in particular of spark-ignition type, that can run according to a burnt gas scavenging mode or to a conventional mode, comprising at least one cylinder (10) with a combustion chamber (12), at least two air intake means (14, 16), one (14) of the means being a burnt gas scavenging intake means and the other (16) being a fuel injection intake means, said means comprising each a pipe (18, 20) controlled by an intake valve (22, 24), at least one burnt gas exhaust means with an exhaust valve (34) associated with an exhaust pipe (36) and at least one fuel injection means (26).

Abstract: The present invention relates to an arrangement for recirculation of exhaust gases of a supercharged combustion engine (1) in a vehicle. The arrangement comprises an inlet line (10) for supply of compressed air to the combustion engine (1). The inlet line (10) comprises a charge air cooler (11) for cooling the air. The arrangement also comprises a return line (15) which connects the exhaust line (6) to the inlet line (10) so that it is possible, via the return line (15), to recirculate exhaust gases from the exhaust line (6) to the inlet line (10). The return line (15) comprises an EGR cooler (17) for cooling the recirculating exhaust gases. The EGR cooler (17) and the charge air cooler (11) are arranged close to the combustion engine (1) on the cold side of the combustion engine (1) where a branched inlet pipe (24) is fastened.

Abstract: An exhaust gas heat exchanger system of a combustion engine has a bypass duct and a heat exchanger duct with a heat exchanger. A valve is controlled by determining when heat is to be transferred from exhaust gas flowing through the exhaust system to the heat exchanger. When heat is to be transferred, the valve is switched into a first position in which all of the exhaust gas flows through the heat exchanger duct. A pressure drop across the heat exchanger system is monitored either directly or indirectly. If the pressure drop reaches a predefined limit, the valve is switched into an intermediate position, resulting in a smaller portion of the exhaust gas flowing through the heat exchanger duct than when the valve is in the first position and a remaining portion flowing through the bypass duct, thereby reducing the pressure drop across the heat exchanger system.

Abstract: An oil separator insert for a cover or a housing of an internal combustion engine comprises a stem member and at least one helical surface member arranged along the circumference of said stem member such that a helical channel is formed by said helical surface member. Said helical channel is open towards an outer enveloping surface of said helical surface member. Said insert is provided for being tight-fittingly inserted into a mounting in said cover or said housing, allowing blow-by gases to flow through said helical channel when being tight-fittingly inserted into said mounting. At least an outer part of said helical surface member is made substantially of an elastomer based material.

Abstract: A gas gun having a pneumatic driving device comprises an upper housing including a loading device disposed therein and having a tubular member and a projectile member therein, wherein the tubular member includes a piston arranged therein, such that the pneumatic air may be compressed by the piston, thus strongly propelling paintballs.

Abstract: A bowstring cam assembly for compound archery bow has a bowstring cam member that is journaled at an end of the bow power limb. First and second power cams are affixed onto the bowstring cam member to rotate with it, and first and second flexible inextensible cam cables extend over the periphery of the associated power cams. The cam cables and the power cams cooperate to determine draw characteristics for the bow. The bowstring cam member is provided with an acircular cam profile. The second power cam is situated to one side of the axis of the bowstring cam, such that at an end of travel, i.e., at full release, both the first and second power cables are pulling in a common direction.

Abstract: The instant invention relates to power tools. More specifically, the instant invention is a portable device for shaping, contouring and polishing the edge of a workpiece consisting of a hard material. The device includes a guide-way constructed and arranged to attach directly to the upper surface of the workpiece. A carriage is slidably supported on the guide-way for movement along the length thereof. Secured to the carriage is a motor for rotation of a rotary tool. A pneumatic cylinder is provided to force the rotary tool into the workpiece with a predetermined pressure along a predetermined axis of approach. The carriage is constructed and arranged for vertical positioning and angular rotation of the rotary tool.

Abstract: The cutting apparatus of the present invention includes a frame with first and second side members that lie parallel to one another. It also includes two or more cross-members that connect the first and second side members together as well as a cantilever member that lies mounted to one of the other members and extends outwardly of that other member. A tray movably mounted on the frame holds an object for cutting; and a motor and blade assembly mounted to the cantilever member cuts the object. The method of forming this apparatus includes forming openings in the side members and inserting end portions of the cross-members into the opening to form a frame in which the cross-members are parallel to each other and perpendicular to the side members.

Abstract: The invention relates to equipment and related methods for producing concrete blocks. The equipment and methods described herein utilize splitting assemblies having larger projections and/or smaller projections or peaks disposed on at least one side of a splitting line and which engage the workpiece as it is split into at least two pieces.

Abstract: A stove (or range) burner guard attached to the front of a gas or electrical stove (or range) by inserting the lower portion of the guard between the oven door handle and the oven door. The guard is secured by two identical holding devices, which are attached to the surface of the oven door. The guard prevents young children from reaching the burners, control knobs and cookware on the stovetop. The guard can be installed or removed in seconds.

Abstract: The present invention relates to an improved oven configured to heat or cook an item and preferably pizzas. The oven includes at least one heating gas pathway for heating gas moving within the oven and an item supporting surface on which to place the item to be heated. This item supporting surface has a defined degree of thermal communication with the heating gas pathway. The oven also includes a heating chamber located above the item supporting surface, with this heating chamber being in thermal communication with the upper surface of the item to be heated and thermal communication with the heating gas pathway. This heating chamber also includes a transition port for heating gases. When the oven is used the item is heated by thermal communication through the item supporting surface to a first degree and by thermal communication with the heating chamber by a second degree.

Abstract: This invention relates to a safe grill designed for cooking food. Said grill is composed of double vertical combustion chambers with adjustable width, each of said combustion chambers having a single cooking face facing the food to be cooked. Said grill may be provided with a protection wall. This invention also relates to an arch connecting the two vertical combustion chambers, extensions that fold down automatically under an overload and finally a removable gas ignition. Thus, this invention is aimed at solving the problem that consists firstly of keeping the taste of food and preserving the quality of food, while enabling fast cooking of the food, and being safe for users of said grill, limiting nuisances and finally having a heat consumption consistent with the quantity of food to be cooked. Finally this invention can transform the grill into an outdoor radiant heater and an outdoor fireplace.

Abstract: A high-moisture food cooker is provided that has an upright tubular food-receiving housing having a top edge, a sidewall, and a bottom edge. A fuel support is positioned in the housing and is vertically spaced from the bottom edge for receiving and supporting a carbonaceous fuel such as charcoal during a cooking process. A plurality of spaced-apart side vents are formed and positioned in the sidewalls of the housing proximate the fuel support for allowing a free flow of air from outside the housing onto the fuel. A food support is positioned in use on the fuel support and is adapted to space and support the food above the fuel during the cooking process. The food support has a sufficient surface area to support the food while allowing free heat flow from the fuel onto the food.

Abstract: Less hazardous methods for generating thermal energy for heating water, medical supplies or comestible products using improved flameless chemical heaters/flameless ration heaters by novel chemical or electrochemical means, each capable of suppressing the generation of hydrogen gas. Remote unit self-heating meals may be more rapidly heated by forming a reaction mixture comprising magnesium or a magnesium-containing alloy, and a hydrogen eliminator or suppressor, and introducing water to react the reaction mixture and generate a more rapid release of thermal energy sufficient to effectuate a more accelerated temperature rise and more rapid heating of medical supplies, water, rations or other comestible substances while simultaneously suppressing or eliminating the generation of potentially hazardous hydrogen.

Abstract: A ventilator assembly for removing contaminants in cooking exhaust includes a hood portion having a hood plenum, and a duct portion in fluid communication with the hood portion, where the duct portion has an inside cross-sectional area that is less than half of an average inside cross-sectional area of the hoodplenum. A fan is in fluid communication with the duct portion for drawing the cooking exhaust through the hood portion to the duct portion. At least one ultra-violet lamp is disposed in the duct portion, where the ultra-violet radiation from the lamp reacts with the cooking exhaust to generate ozone for oxidizing contaminants in the cooking exhaust.

Abstract: The present invention provides a kitchen ventilation hood for ventilating the area above a cooking area and for exhausting air containing cooking by-products from a cooking station to an external environment through an exhaust duct while using a reduced airflow. The kitchen ventilation hood of the present invention is designed to minimize the required airflow through the hood in order to thoroughly evacuate the cooking by-products. The kitchen ventilation hood of the current invention has a structure incorporating an arched interior hood surface that directs the air to be ventilated through the air intake gap and the grease filter. The more efficient airflow resulting from the arched interior hood surface allows for removal of cooking by-products with a lower airflow than that required by currently available ventilation hoods. As such, the kitchen ventilation hood of the present invention represents a significant improvement over prior ventilation hoods.

Abstract: An inhaler for delivering medicament by inhalation comprises a canister which comprises a body which includes a base and a head and defines a chamber containing medicament, and a valve stem which extends from the body and from which medicament is in use delivered on actuation of the canister. The inhaler also comprises an actuator comprising a main body comprising a housing receiving the canister, and an actuation mechanism for actuating the canister. The actuation mechanism comprises a loading member which is fitted to or comprised in the canister and includes a loading section which is located at a distance spaced from the base of the body of the canister and, in use, acted upon to drive the loading member in an actuating direction from a first, rest position to a second, actuated position in which the canister is actuated to deliver medicament.

Abstract: Modes, methods, systems and devices are described for providing assisted ventilation to a patient, including wearable ventilation systems with integral gas supplies, special gas supply features, ventilation catheters and access devices, and breath sensing techniques.

Abstract: An underwater breathing device, such as a snorkel, may include an exhalation valve. The exhalation valve is configured to produce positive end-expiratory pressure in the airway of a user of the underwater breathing device. The exhalation valve includes a plate defining an exhalation port and at least one chamber port, an exhalation conduit connected to the exhalation port, and a flexible membrane that is sealable against a surface of the plate. A lower portion of the exhalation conduit is divided by a septum which divides the exhalation conduit and the exhalation port into a first exhalation port connected to a first exhalation conduit and a second exhalation port connected to a second exhalation conduit. The flexible membrane is sized and positioned to be capable of sealing the first exhalation port and the second exhalation port.

Abstract: The invention relates to life-saving engineering. The inventive protective hood is embodied in the form of a bag comprising a sorbing-filtering insert, a sorbent container, an exhalation valve, a mouthpiece assembly and a spring element for compressing and the extending the bag. Said hood is a small-sized, has a simple structural design, provides a high protection level and is easy to use.

Abstract: Methods and devices for assisting in the delivery of medicaments to the lungs of a patient are provided using a non-aerosol, inhalation device. In one embodiment, the methods and device utilize a positive pressure device that is effective to drive a medicament contained within a chamber in an inhalation device through an outlet and into a patient's lungs, either orally, through the patient's nasal passages, or through a tracheal tube in communication with the patient's lungs. In another embodiment, the present invention provides a connector for coupling an inhalation device to a tracheal tube to allow a medicament contained within a drug chamber in the inhalation device to be delivered to the patient's lungs via the tracheal tube.

Abstract: A socket part actuated without pressure for a fluid coupling is provided with means, which mechanically seal, to a large extent, the insertion space of a plug against the penetration of foreign matter. In addition, a throttling device is provided, which practically does not obstruct the fluid connection for an inserted plug, while a high flow resistance is produced for a plug that has been pulled out, without, however, completely blocking the flow path. The associated plug also has a sealing device in order to protect the flow channel against the penetration of particles when the plug is removed. In case the plug is connected to a compressed-air tank, this is provided with a throttling device, which practically does not obstruct flow for an inserted plug, but forms considerable flow resistance for a removed plug without completely blocking the flow.

Abstract: A filtering means for a suction tube is capable of blocking pollution sources in the air. Such means is mainly made of a tube body. The tube body is formed into an arc and has a first connecting tube and a second connecting tube thereon. A blocking body is received in the first connecting tube for blocking fine particles in the air. Further, an outer cover having a plurality of through holes is provided so as to fix the position of the blocking body. The interior of the second connecting tube is provided with a partition. The surface of the partition is provided with a plurality of gaps thereon. The gaps are formed like a grate to prevent large-sized foreign matters from entering the suction tube. With providing the filtering means on the suction tube, the fine particles contained in the air, the sputa or bacteria contained in the air exhaled by the patient can be blocked when passing through the suction tube.

Abstract: A face mask assembly (FMA) for supplying breathable gas to a wearer. The face mask assembly (FMA) includes a mask frame including a support, a facial cushion attached to the mask frame, and a forehead support. The forehead support includes a forehead cushion assembly and an adjustment knob operatively coupled to the forehead cushion assembly. The adjustment knob is threadably engaged with the forehead cushion assembly such that turning movement of the adjustment knob causes the mask frame to be moved between retracted and extended positions with respect to the forehead cushion assembly.

Abstract: An air line adapter structure includes a connecting tube body and an air adapter. The connecting tube body includes an air tube connector, a breathing connector interconnected with the air tube connector and a suction connector interconnected with the air tube connector and the breathing connector. The air adapter includes a sheathing bushing and a connecting tube extended outward from a sheathed bushing, and the interior of the sheathing bushing is interconnected with the interior of the connecting tube and sheathed onto the breathing connector of the connecting tube body. The external circumference of the connecting tube is smaller than the external circumference of the sheathing bushing, such that the connecting tube can be connected directly to an oxygen tube for timely supplying oxygen to patients and greatly broadening the scope of application of the suction apparatus.