Abstract: A double roller cam follower includes a longitudinal beam having a first end and a second end, a cam roller rotationally mounted on the beam for engaging a cam lobe and a valve stem roller rotationally mounted on the second end of the beam for engaging a valve stem. The cam roller includes a stepped outer circumference having a larger diameter at its sides to engage the cam lobe and a smaller diameter positioned centrally between the flanking larger diameters to provide clearance between the cam roller and the valve stem roller.

Abstract: A valve deactivation lifter including means for restricting relative rotation between the pin housing and the lifter body. When used in a V-style or slant engine, a prior art deactivation lifter can be subject to oil drainage during engine shutdown if the oil supply port in the pin housing rests in the “down” position. In an improved lifter, relative rotation between the pin housing and the lifter body is limited and the pin housing is oriented such that the oil supply port is never on the underside of the pin housing. Rotation may be limited by any of several means, for example, a ball disposed in a dimple in the pin housing and extending into a longitudinal groove in the lifter body, and a flat on the pin housing and locking means installed in the lifter body to engage the flat and thus prevent rotation of the pin housing.

Abstract: The present invention is directed to a semi-rotating valve assembly that may be used in conjunction with an internal combustion engine. The semi-rotating valve of the present invention comprises a valve shaft disposed substantially within a valve housing, wherein the valve shaft is configured to rotate less than 360 degrees with respect to the valve housing to selectively open and close the valve. The reduced rotation of the valve shaft reduces friction, heat and wear. An interlocking sealing mechanism that may be used in conjunction with the semi-rotating valve of the present invention, along with means for cooling the valve, also are disclosed. Further, means for varying an aperture size associated with the valve also are provided, wherein the means for varying is configured to compensate for differences in engine speed to further improve efficiency and reduce fuel consumption and emissions.

Abstract: Between the cylinder head and combustion chamber of an internal combustion engine, an intermediate sealing ring. The sealing ring is in sliding contact at its top circular surface with a disc valve rotatively mounted in said cylinder head and at its outer periphery in fixed sealing contact with the inner surface of the engine cylinder of said engine combustion chamber. The purpose of the intermediate seal is to confine the working fluids, being acted upon by the reciprocating motion of the engine piston, across the stationary interface of the engine cylinder and rotative surface of the disc valve.

Abstract: A cylinder block and crankcase for a liquid-cooled internal-combustion engine is to be constructed by composite casting, a magnesium case being cast around an aluminum power unit block. The cylinder block and crankcase is conceived such that the aluminum power unit block is significantly used for the distribution of force between the cylinder head and the crankshaft bearing caps as well as for the guiding of the cooling water, in which case, the magnesium case is free of a cooling water guidance and predominantly used for the guiding of lubricating oil and, in addition, is correspondingly designed for the proportional stiffening against bending and torsion loads.

Abstract: The reciprocating internal-combustion engine comprises at least one hollow cylinder, with a chamber inside a working fluid, the chamber has an end closed by a head and an opposite end closed by a piston that reciprocates by rectilinear motion in the chamber between a bottom dead center and a top dead center, and a device for converting the reciprocating rectilinear motion into a rotary motion of a driving shaft. The conversion device comprises at least one push rod substantially perpendicular to the shaft with a first end associated with the piston and a second end provided with pusher elements, and at least one contoured eccentric element keyed on the shaft on which a circuit element is provided which is crossed by the pusher elements and adjustment elements for adjusting sliding of the pusher elements along the circuit element so as to keep the rod and the piston in a substantially stationary configuration for a presettable rotation angle of the driving shaft.

Abstract: In a center injection type of direct engine, since it has an ignition plug and an injector arranged in proximity, there occurs the problem that a sprayed liquid fuel directly strikes the ignition plug and causes the plug to misfire. A notch is to be provided at a portion of the injector end so as to form a coarse-grained portion and a dense portion in sprays of fuel, and the injector is disposed so that the coarse-grained portion is directed towards the ignition plug. It is possible to avoid the misfiring of the ignition plug and thus prolong the life of the plug, by preventing a liquid fuel from directly striking the plug.

Abstract: A control unit is used for controlling a direct fuel injection type internal combustion engine. The control unit controls a fuel injection valve to have a first fuel injection mode wherein a penetration force of an injected fuel sharply increases at an initial stage of a fuel injection and thereafter an increasing rate of the penetration force gradually lowers with passage of time and a second fuel injection mode wherein the penetration force of the injected fuel sharply increases at a middle stage of the fuel injection. The control unit further controls the fuel injection valve in a manner to switch the first and second fuel injection modes in accordance with an operation condition of the engine.

Abstract: A control device for a throttle valve, by dispensing a position sensor for the throttle valve, can reduce a cost of the sensor and which is excellent in durability and reliability and is reduced in its control delay. The control device includes an air flow sensor 1 for detecting an air flow rate flowing through a intake pipe of an internal combustion engine, a motor 33 for driving the throttle valve 2 disposed in the intake pipe and an ECU 15 for controlling the driving operation of the motor. The ECU 100 feedback-controls the output of the air flow sensor so that a difference between the output of the air flow sensor 1 and an air flow rate required for the engine reduces.

Abstract: A method of controlling torque output of an engine includes calculating a desired air-per-cylinder (APC) based on a torque command and determining an effective throttle area corresponding to the desired APC based on a non-dimensionalized model. A throttle is regulated based on the effective throttle area.

Abstract: An ignition circuit for a two-stroke engine has a spark plug connected via an ignition switch to a voltage source. The ignition switch is actuated via a control circuit to close the ignition switch in dependence upon the crankshaft angle and the rpm of the engine and to trigger an ignition spark per revolution of the crankshaft. For one and the same rpm, the control circuit makes available an ignition time point for the idle case and an ignition time point for the acceleration case. To achieve rapid acceleration from idle, the control circuit monitors idle rpm to switch to an ignition time point for the acceleration case for a pregiven rpm increase. If the control circuit determines an absence of the rpm increase or drop after ignition switchover to the acceleration case, then there is a switch back to the ignition time point for the idle case.

Abstract: The fuel injection system has a high-pressure pump, by which fuel is pumped into a reservoir, with which injectors disposed on cylinders of the engine communicate. A feed pump pumps fuel out of a fuel tank to the high-pressure pump and a fuel metering device triggered by a control unit and disposed between the feed pump and the high-pressure pump controls the fuel quantity delivered to the high-pressure pump. The fuel metering device is formed by a clocking valve, which is opened and closed in pulse-width-modulated fashion by the control unit, and the fuel quantity delivered to the intake side of the high-pressure pump is proportional to the opening duration of the clocking valve.

Abstract: A fuel injection system includes a fuel pressurizer that may be cam actuated. The fuel injection system also includes an electronically controlled spill valve and an electronically controlled needle control valve. The energization of the electronically controlled spill valve closes a fuel pressurization chamber to a drain passage to allow fuel pressure in the fuel injector to build to injection levels. The electronically controlled needle control valve controls whether high or low fuel pressure is applied to a closing hydraulic surface associated with a direct control needle valve. The fuel injection system includes a hydraulic circuitry that allows for fuel injection to occur by either maintaining the electronically controlled needle control valve in a de-energized state, or by de-energizing the same, after fuel pressure within the fuel injector has built to injection levels.

Abstract: In a combustion engine, the fuel quantity is determined as a function of the inflowing air mass. As a measure for the inflowing air mass, one uses either a main load signal, which is generated by an air-mass flow sensor and represents a measure of the inflowing air mass, or a secondary load signal, which is generated as a function of the degree of throttle of a throttle device in the intake port and of the speed of the combustion engine, to correct the secondary load signal, an air-mass compensation quantity being utilized. The air-mass compensation quantity is generated in operating phases in which the correctness of the main load signal may be assumed, by comparing the main load signal with the secondary load signal.

Abstract: A fuel pump drive system for an internal combustion engine uses a cam-to-cam gear from a double overhead camshaft to rotate a fuel pump gear. The fuel pump drive system may have a primary camshaft, a secondary camshaft, and the fuel pump. The primary camshaft has a camshaft gear and the cam-to-cam gear. The secondary camshaft has a cam gear. The cam gear engages the cam-to-cam gear. The fuel pump has a fuel pump gear that engages the cam-to-cam gear. The fuel pump gear drives the fuel pump.

Abstract: An invention for controlling hydrocarbon emissions diffusing from a throttle body through an air path of an air induction system after engine shut-off. The invention includes a pourous membrane loaded with carbon positioned in fluid communication with the emissions for adsorbing the emissions.

Abstract: An evaporated fuel adsorbing apparatus for an engine intake passage includes a layer of activated carbon disposed in the engine intake passage for adsorbing evaporated fuel. The activated carbon includes activated carbon pellets having pores. At least one of an average pellet size and an average pore size of the activated carbon is varied in an intake gas flow direction of the engine intake passage. More particularly, an average pore size of a first portion of the activated carbon located in an atmosphere side portion of the layer is greater than an average pore size of a second portion of the activated carbon located in an engine side of the layer. An average pellet size of the first portion of the activated carbon is smaller than an average pellet size of the second portion of the activated carbon.

Abstract: An optimized engine charge air-cooling system for an internal combustion engine includes a charge air cooler side mounted along an outboard side of each engine cylinder bank of the engine. The charge air coolers extend the full length of the cylinder banks. The charge air coolers each include a housing, a core, an air inlet and an air outlet. The charge air cooler inlets are connected to an outlet of a compressed air source, such as a turbocharger, through cooler intake headers. The charge air cooler outlets are connected through cooler outlet headers to cylinder intake ports of cylinders in the cylinder banks. The design of the charge air-cooling system allows for highly effective cooling of charge air with a corresponding small drop in charge air pressure. These features combine to achieve the result of decreased engine nitrogen oxides (NOx) production and increased engine fuel economy.

Abstract: An exhaust gas recirculation device in accordance with the present invention has an exhaust gas recirculation valve interposed between the exhaust system and the intake system of an internal combustion engine, an exhaust gas recirculation cooler for cooling exhaust gas sent from the exhaust gas recirculation valve to the intake system, and a bypass valve that bypasses the exhaust gas recirculation cooler and sends the exhaust gas to the intake system. The exhaust gas recirculation cooler is put adjacently between the exhaust gas recirculation valve and the bypass valve.

Abstract: An vehicle-mounted internal combustion engine (1) provided with an EGR line (11) for recirculating exhaust gas, an EGR valve (12) which is arranged in said EGR line (11) and controls an EGR amount, and an EGR controller (41), is constituted so that said EGR controller (41) opens said EGR valve and performs control for scavenging said EGR line (11) at the time of reducing vehicle speed and during idling. With this vehicle-mounted internal combustion engine (1), the sulfuric acid corrosion can be avoided by preventing condensation of moisture in the exhaust gas in the EGR line (11), the EGR valve (12), etc. developed when the internal combustion engine (1) stops running.

Abstract: An electronic ignition system for a vintage automobile includes an ignition coil and an electronic switching circuit disposed in a coil box of the vintage automobile. The coil and electronic switching circuit are mounted within a coil box module that replaces four original induction coils within the coil box. Once the coil box module is installed in the coil box, it is not detectible unless the cover on the coil box is removed. Wires from the original ignition system are utilized. A buzzer is also incorporated to simulate the sound of the vibrating switches on the original induction coils. A rotor and electronic sensor are installed within the original commutator cap, making them impossible to detect unless the commutator cap is removed.

Abstract: When an internal combustion engine is in a low load and low rotation operation, and also an elapsed time after the starting of engine operation is less than a predetermined period of time, a heater heating an air-fuel ratio sensor is turned OFF, to stop an air-fuel ratio feedback control. When the internal combustion engine is in the low load and low rotation operation after the predetermined period of time has elapsed, a low voltage is applied to the heater and also a gain is lowered, to perform the air-fuel ratio feedback control.

Abstract: One preferred embodiment of the present invention provides a cam having an axle location for mounting the cam to an archery bow, where the center of mass of the cam is substantially coaxial with the axle location. Preferable the cam has an eccentric geometric rotation profile with regard to a rotation axis, typically an irregular geometry with a non-centered axle location, or a circular profile with an axle location offset from the center of the circular profile. The mass of the cam is balanced to have an effectively equal mass distribution around the axle location. In an alternate preferred embodiment, the cam has a balanced center of mass aligned with the axle location in an X-Y orientation, and may also have a balanced center of mass through the thickness of the cam in an X-Z or Y-Z orientation.

Abstract: The present invention provides a barbecue grill assembly with a grill body having a firebox and a cover and a burner element. The firebox is supported on a frame structure having a first frame member assembly and a second frame member assembly. The frame assemblies are secured together by combination of at least one cross member secured to the upper portion and being secured to the firebox at a lower region, without the need for additional cross members at the lower region. The invention further provides a frame with pivoting shelves secured to the frame, adapted to move from a use position to a storage position within the grill cooking chamber. The present invention further provides a frame assembly having a lateral slot for receiving and supporting a heat shield positioned below the firebox.

Abstract: An apparatus for heating a liquid comprising a housing having an internal chamber and a rotor disposed in said chamber. A drive shaft rotatably supported in the housing and extending into said chamber for imparting mechanical energy to the rotor. The rotor being provided with a series of openings generally arranged to be parallel to the rotational axis of the drive shaft. The rotor in the form of a disc and the housing formed with radial surfaces on either side of said rotor disc. The rotor may comprise a single disc or alternatively, a series of dics in a liminated formation. A fluid intake passage in said housing preferably arranged adjacent the center of the disc and a fluid exit passage, generally arranged to be circumeferntially outwards of said disc.

Abstract: A method and apparatus for operating a ventilator in a primary electronic mode or in a back-up pneumatic mode during primary electronic mode failure. A method and apparatus for operating a ventilator in an advanced mode, having a number of ventilatory modes, or in a basic mode, having a limited number of ventilatory modes is also disclosed.

Abstract: The present invention provides a heat and moisture exchange (HME) unit that includes a housing having a fibrous media in the housing that is designed to absorb and retain moisture and heat from exhaled air passing through the housing. The HME unit is designed to transfer the moisture and heat to inhaled air passing through the HME unit. The HME unit has an internal bypass in the housing to enable air to pass through the heat HME unit without passing through the fibrous media. The present invention also provides a breathing circuit that includes a medication bypass HME unit, a medication treatment device and a ventilator that is connected in a closed system.

Abstract: A method of humidifying a gas that includes supplying a gas to a surface of a humidification material that readily absorbs moisture and readily releases moisture when exposed to a dry environment and generating turbulence in the gas as it passes over the surface of the humidification material.

Abstract: A system (A) for providing single continuous dose of a gaseous heliox mixture to a patient with breathing difficulty includes a device (1) providing a constant and continuous flow of the heliox mixture, and a gas storage tank (2) for the mixture. A flow control is selectively operated to initiate flow of the heliox to the patient. It has a locking mechanism to prevent it from being turned off after the flow begins. The regulator can be reset for reuse by a service entity.

Abstract: An oral application for snoring prevention which has a flattened tube with an unobstructed airway and ridges on the inferior surface for pulling the tongue forward out of the path of the airway while the superior surface of the tube follows closely the hard and soft palate. The tube is short and extends in the oral cavity or mouth to a location which will not cause a gag reflex.

Abstract: The invention provides improved devices, methods, and systems for shrinking of collagenated tissues, particularly for treating urinary incontinence in a noninvasive manner by directing energy to a patient's own support tissues. This energy heats fascia and other collagenated support tissues, causing them to contract. The energy can be applied intermittently, often between a pair of large plate electrodes having cooled flat electrode surfaces, the electrodes optionally being supported by a clamp structure. Such cooled plate electrodes are capable of directing electrical energy through an intermediate tissue and into fascia while the cooled electrode surface prevents injury to the intermediate tissue, particularly where the electrode surfaces are cooled before, during, and after an intermittent heating cycle. Ideally, the plate electrode comprises an electrode array including discrete electrode surface segments so that the current flux can be varied to selectively target the fascia.

Abstract: Smokable rods of cigarettes are manufactured using wrapping materials that incorporate at least one fibrous material (e.g., flax fibers, hardwood pulp fibers and/or softwood pulp fibers) at least one filler material (e.g., calcium carbonate in particulate form). The wrapping materials possess multi-layer coatings. The wrapping materials possess coatings in the form of series of spaced apart bands, each band possessing a series of layers. At least one of the coating layers can have a filler material dispersed or suspended within a film-forming material of that layer.

Abstract: A disposable, solution-mixing hair colorant dispenser: tubular rear segment including first reservoir having rupturable front end; tubular middle segment including second reservoir having rupturable rear and front ends; tubular front segment including rear end and forward-projecting porous applicator. Rupturing member near adjacent ends of first and second reservoirs for rupturing both when first and second segments are engaged. Rupturing member near front end of second reservoir for rupturing same when second and third segments are engaged. Alternative rupturing members: double-ended between first and second reservoirs and single-ended attached to third segment; double-ended within second reservoir; single-ended within first reservoir and single-ended attached to third segment. Segments threaded for endwise engagement to seal segments and rupture reservoirs. Fluids mixed and dispensed through applicator.

Abstract: A cosmetic container and packaged hair treatment composition comprising a receptacle having at least one opening and containing the hair treatment composition, an applicator for applying the hair treatment composition in the receptacle to the hair, which is attachable to the at least one opening of the receptacle, the applicator containing an internal channel feeding into at least one internal chambers having at least one external outlet surrounded by tines, a method for applying highlights to the hair using the package.

Abstract: A method of washing utensils in provided which provides a washing action of a pot and pan washing machine within an isolated portion of the washing machine. A utensil basket utilizing the method of the instant invention is also provided.

Abstract: Liquid raising systems raise liquid from a system inlet to a system outlet without any moving parts below the system outlet. One or more closed cells are disposed at elevations between the system inlet and outlet. A liquid conduit leads from the bottom of each cell to the top of the next downstream cell. Gas pressure-differential between two next-adjacent cells causes liquid to flow through the liquid conduit to the next cell. The pressure-differential need be only enough to move the liquid between adjacent cells. The cells are cyclically filled and emptied by sequentially applying the gas at higher and lower pressures to adjacent cells, thus progressively moving liquid toward the system outlet. A cell can have a variety of shapes and sizes, so long as the cell gas inlet is above the liquid inlet, and the liquid outlet is below both the liquid inlet and the gas inlet.

Abstract: A method of installing a cable or conduit into at least one plastic pipe of a fluid carrying pipeline system, comprises attaching a first saddle fitting at a first location on said plastic pipe by electro-fusion, opening the pipe at the first location, introducing the cable or a pull body through the saddle fitting into the pipe towards a second location or retrieving at least part of the cable or a pull body introduced at a second location, and pulling the cable directly or by means of the pull body through the pipe. This allows installation of a cable without turning off the fluid supply.

Abstract: A unitary removable barrier for installation in a cylindrical water line to selectively block the water line to passage of water therethrough. The unitary removable barrier is composed of a single piece body having at least one cylindrical section sized to receive upstream and downstream pipes of the water line. A planar disk is molded with the cylindrical section and is of a circular circumference which completely blocks the water line but which is selectively removable from the cylindrical section thus removing the barrier to the passage of water through the line. Removal of the barrier is facilitated through the use of a piercing device and pull tab which can be actuated from a position outside of the waste line.

Abstract: The invention relates to a valve combination which is characterized in that the valve combination has a passive valve and an active valve. The active valve is provided with means for an active influence of the control position of a closing element and regulates the fluid flow at a high pressure. The passive valve controls the fluid flow at low pressure. The passive valve and the active valve are integrated into the cooling system pump circuit such that the pressure difference between the high and low fluid pressure and the control positions of the active valve determine the control position of the passive valve.

Abstract: An improved surround structure and method of installation for surrounding the base of a water-containing appliance to prevent water leakage onto a concrete floor is disclosed where a lower portion of the surround structure is embedded in the concrete floor as it is being formed and an upper portion of the surround structure extends above the basement floor to surround the base of the appliance.

Abstract: A tank has an enlarged cylindrical lower section a small tubular upper section. A hemispherical middle section is provided between the lower and upper sections. A gas dispensing hose has an inner end attached to the upper section and an outer free end. A support assembly has an interior component with an inner long leg and an outer long leg with an inner bend there between. The support assembly also has an exterior component with an inner short leg and an outer short leg with an outer bend there between. The support assembly also has a lateral leg integrally formed with the upper end of the inner long leg and an outer curvature removably coupled to the tubular upper section adjacent to the semi-hemispherical section.

Abstract: A diagnostic system, for a valve (2), having a sensor (12) that senses structure-borne noise and having a device (14) for evaluating a measurement signal (13) of the structure-borne noise. During a calibration process, a first progression of the measurement signal is sensed for the closed position of the valve (2) and a first value (w1) of a characteristic is determined. To simulate leakage noise, the valve (2) is nearly closed during operation, a second progression of the measurement signal is sensed and a second value (w2) is determined. If the deviation of the second value from the first value is sufficiently large, a diagnosis is possible. A third progression of the measurement signal is sensed for the closed position of the valve as in an installed condition, and a third value (w3) is determined. If the deviation of the third value (w3) from the first value (w1) is too great, and if a diagnosis has been identified as being possible, then the system deduces that the valve leaks.

Abstract: A selectable detent relief valve of this invention is used to operate a hydraulic detent mechanism on a manually operated spool valve. This design has three modes of operation, no-detent, continuous detent and kick-out detent. The no-detent position allows flow to pass through the relief valve, from a first port to a second port and bypass the relief function. The pressure created, disengages the detent mechanism in the spool valve. The spool always returns to neutral position as long as pressure is present. The continuous detent position blocks the flow from a first port to a second port. The kick-out detent position allows flow to pass from the first port to the second port to override (kick-out) the detent mechanism in the spool when the pressure is greater than 2600 psi.

Abstract: A coolant flow valve for controlling the distribution and flow of coolant to replace the radiator thermostat and heater valve used in automotive applications. The valve includes a valve rotor rotationally received in a valve housing wherein the rotational orientation thereof determines which combination of flow paths through four different outlet ports is selected.

Abstract: A body element for a spool valve is provided that includes a body having an inner surface that defines an internal valving chamber having a longitudinal axis, and at least one transverse surface to the longitudinal axis. The transverse surface has at least one port comprising an annular flow passage, an intermediate flow passage and an outer flow passage extending outward from and in fluid communication with the inner surface of the internal valving chamber.

Abstract: A fluidic oscillator is disclosed, wherein the fluidic oscillator includes a fluid source and a housing coupled to the fluid source. At least one recess is formed within the housing. An insert resides within each at least one recess; the insert provides at least one substantially flat surface. A fluid flowpath in the at least one substantially flat surface generates fluid pulses from fluid received from the fluid source.

Abstract: A fluid treatment system is provided including a closed fluid treatment zone, at least one radiation source disposed in the fluid treatment zone to irradiate a flow of fluid, and a plurality of diffusers disposed upstream of the at least one radiation source. The plurality of diffusers define a decreasing gradient of fluid treatment zone cross-section from an upstream portion of the plurality of diffusers to a downstream portion of the plurality of diffusers. Also provided is a flat diffuser for changing flow cross section in a flow conduit.

Abstract: A system and apparatus for pressurizing pipe includes a resilient and compressible plug insertable into the opposed ends of the pipe for sealing the pipe. The plug includes a plug body having a larger outside diameter than the inside diameter of the pipe, a flange that limits insertion of the plug into the pipe, and a blind hole coaxial with the plug for receiving the rod of a pushing member used to force and push the plug into the pipe. The rod has a smaller diameter than the hole for allowing the plug to compress during insertion for fitting into the pipe. After insertion of the plugs pipe pressurization occurs by securement of the needle end of an air pressure gun to a cylindrical needle shield that is circumjacently placed on the pipe for needle end alignment whereupon the needle end perforates the plug for pipe pressurization, and as the needle end is withdrawn the plug body compresses and closes the temporary needle slot thereby sealing the pipe.

Abstract: A corrosion resistant multi-layer tube comprises a metal tube; a zinc layer bonded to the metal tube outer surface; a surface treatment layer bonded to the zinc layer; a priming layer; a first polymeric layer bonded to the priming layer; a second polymeric layer bonded to the first polymeric layer. A process for manufacturing the tube comprises the step of extruding multiple layers of a melt-processible thermoplastic to a pretreated metal tube having an external surface with at least a zinc based coating, a sealant coating on top of the zinc based coating, and a primer coating on top of the sealant coating. The primer coating is preferably applied by an airless spray system in a closed atmosphere, wherein substantially no volatile organic compounds escape into the atmosphere. The polymeric layer(s) remain adhered to the metal tube, even when exposed for prolonged periods to aggressively corrosive environments.

Abstract: A yarn processing system includes a weft yarn feeding device with a control unit and a power loom which consumes weft yarn. In operation, a run-signal is generated by the power loom that initializes the start-up of the weaving operation. A start-signal that is derived from the run-signal is transmitted to the feeding device. The start-signal is generated externally of the feeding device. The drive motor of the feeding device is driven at a predetermined speed, after receiving the external start-signal in order to prevent an undesired reduction of the size of a yarn store by the initial consumption demand of the start-up of the weaving operation of the power loom. A signal transmitting connection is provided in the yarn processing system between the power loom and a control unit of the feeding device for transmitting the start-signal.