Abstract: In an internal combustion engine in which fuel injection valves are arranged upstream from and downstream from the throttle valve, respectively, the response of the accelerated increase in quantity and correction will be improved. The total injection quantity determination unit determines a total quantity of fuel to be injected from each fuel injection valve. The injection rate determination unit determines an injection rate of the upstream injection valve. The injection quantity correction unit includes an accelerated increase in quantity and correction unit, and during acceleration, increases and corrects only the injection quantity of the downstream injection valve during acceleration.

Abstract: In a fuel injection pump, a helical gear is attached to an end of a camshaft and rotatable with the camshaft. The camshaft is biased in one axial direction thereof by a driving force that the helical gear receives from an engine crankshaft. A disk is provided in a position of the camshaft extending forward from a cam to the direction in which the camshaft is biased. An axial movement of the disk is restricted via a washer by an end of a bearing cover. The disk is formed in the same axis to a portion of the camshaft that is held by a journal bearing. An outer diameter of the disk is larger than that of the cam. An area where the disk and the washer are in sliding contact with each other is relatively large and the sliding regions thereof are constant so that hammer noises are prevented and frictional wear thereof are limited.

Abstract: In a fuel feed unit, a pump holder has a plurality of sheet-metal strips for limiting the transmission of structured-borne sound from a fuel pump to an anti-surge pot. The sheet-metal strips can be manufactured cost-effectively and adapted to the particular fuel pump. This enables the fuel feed unit to be manufactured particularly cost-effectively.

Abstract: A fuel feeding system for an LPI engine is made to allow fuel remaining inside a fuel supply line and a fuel return line to be drained into a bombe by bypassing a pressure regulator while an engine gets cooler after operation, whereby the fuel can be saved from external leakage via a fuel injector, and contaminants are reduced while the engine is running, resulting in improved maintenance of the engine during an engine overhaul.

Abstract: A fuel vapor surge system includes a fuel tank, an intake passage, a fuel vapor storage canister in the fluid communication with the fuel tank, a vapor purge passage in fluid communication with the intake passage and the fuel vapor storage canister, and a closing member movably mounted in the intake passage. The closing member has a first position where the closing member blocks fluid communication between the intake passage and the vapor purge passage and is outside of a fluid stream of the intake passage when fluid is flowing through the intake passage and a second position where the closing member opens fluid communication between the intake passage and the vapor purge passage and extends into the fluid stream of the intake passage when fluid is flowing through the intake passage.

Abstract: A fluid cooling system having a heat exchanger (2) with a pressure differential between an inlet area (31) and a cooling area created by use of a venturi between the areas and enhanced flow of cooling medium by use of connecting the output (32) of the exchanger (2) to an exhaust pipe (34).

Abstract: A system is disclosed for diagnosing operation of an EGR cooler disposed in-line with an EGR conduit fluidly coupled between an intake manifold and an exhaust manifold of the engine such that exhaust gas flowing through the EGR conduit also flows through the EGR cooler. The EGR cooler is coupled to an engine cooling system such that coolant fluid circulating through the engine also circulates through the EGR cooler. Means are provided for determining a temperature of exhaust gas produced by the engine, a temperature of exhaust gas exiting the EGR cooler, a temperature of the coolant fluid and a flow rate of exhaust gas through the EGR conduit. A control computer is configured to diagnose operation the EGR cooler as a function of the temperature of exhaust gas produced by the engine, the EGR cooler outlet temperature, the engine coolant temperature and the EGR flow rate.

Abstract: A control system for a compression ignition internal combustion engine, which is capable of properly estimating the temperature of combustion gases, and thereby accurately controlling the temperature of working medium according to the estimated temperature of the combustion gases, to thereby prevent knocking and misfire from occurring. A compression ignition internal combustion engine causes combustion of an air-fuel mixture by self-ignition in a combustion chamber, and includes an EGR device that causes part of combustion gases generated by the combustion to exist as EGR gases in the combustion chamber.

Abstract: An automotive internal combustion engine comprises an engine main body including a cylinder head having intake ports, and a cylinder head cover. Fuel injector valves are disposed to be directed respectively to the intake ports. An intake manifold is installed to a side surface of the cylinder head and outward curved to define a space between the intake manifold and the cylinder head. A blow-by gas recirculation system is provided for feeding blow-by gas introduced out of the cylinder head cover to each cylinder of the engine main body through an intake system. The blow-by gas recirculation system includes a blow-by gas piping which extends from the cylinder head cover to the intake ports for the cylinders. The blow-by gas piping is accommodated within the space defined between the intake manifold and the cylinder head.

Abstract: The ignition device for an internal combustion engine includes, a control unit (1) for outputting an ignition signal used to determine a time when an ignition plug (8) should be ignited, a switching unit (5) connected to the other terminal of a primary coil for cutting off the flow of a primary current, and a drive unit (4) for turning ON or OFF the switching unit (5) in response to the ignition signal to adjust a voltage to be applied to a gate of the switching unit (5).

Abstract: An internal combustion engine exhaust device. The device includes a conduit element through which exhaust gases flow. The conduit element includes a housing for mounting a measurement sensor such as an oxygen probe. The housing is formed by a hole extended by an insert produced directly through the conduit element.

Abstract: In a constitution for feedback controlling an air-fuel ratio using an oxygen concentration detector in which a detection signal thereof has a linearity to the air-fuel ratio within a predetermined air-fuel ratio range inclusive of a stoichiometric air-fuel ratio, when the detection signal from the oxygen concentration detector is outside a region indicating the linearity, a change in air-fuel ratio feedback control signal is limited to be smaller than that when the detection signal from the oxygen concentration detector is within the region indicating the linearity.

Abstract: A grill unit having a plurality of grill pipes, each grill pipe having two ends; water tanks connected to both ends of the grill pipes to supply water to the grill pipes; and soundproofing covers positioned around both ends of the grill pipes that are inserted into the water tanks. The grill unit allows water contained in grill pipes to continuously flow in any one direction, and prevents the generation of noise caused by water vapor discharged from the grill pipes to the water tanks.

Abstract: A fireplace including a combustion chamber enclosure with an opening and an inner pane positioned to at least partially cover the opening of the combustion chamber. An outer pane is spaced apart from the inner pane, the outer pane and the inner pane creating a space through which air moves, the air cooling the outer pane. A blower may be provided to move the air through the space. The outer pane may be angled with respect to the inner pane to enhance air movement.

Abstract: A tilt mechanism associated with a solar panel assembly whereby effort required to tilt panel assemblies comprising the solar panel assembly is reduced or minimized by appropriate placement of first and second tilt axes with respect to the center of mass and/or center of pressure of the panel assemblies due to wind. These arrays are suitable for use on mobile or static installations. The tilt mechanism is suited for harnessing wind energy if the panels are suitably shaped.

Abstract: An apparatus and method for performing positive pressure (PP) therapy alone or in combination with an aerosol delivery apparatus. The positive pressure apparatus includes a positive pressure valve having a continuously variable respiratory window. The PP valve may be associated with a patient respiratory system interface alone, such as, but not limited to, a mask or mouthpiece, or in combination with an aerosol delivery apparatus.

Abstract: An emergency life support system including a patient ventilator for mechanical breathing assistance; a capnograph to monitor CO2 for ventilation effectiveness; a pulse oximeter for measuring blood stream oxygen saturation; a carbon dioxide sensor; an electrocardiograph (ECG) to monitor cardiac performance; an infusion pump; and alarms and a data recorder. The preferred embodiment uses an oxygen generator to deliver oxygen, to generate electric power to run the ventilation system, and to warm IV fluids and resuscitated air. The generator has electronically controlled valves and a modified valve system that offers the ability to select the oxygen concentration in the air delivered to the patient.

Abstract: Regulator for underwater breathing apparatus including: a box-like body having a mouthpiece; and air inlet ducts connected to said box-like body through an inlet valve; one or more exhaust duct connected to the box-like body; a flexible diaphragm frontally positioned on the opposite side as to the mouthpiece and co-operating with an opening or closing lever of the inlet valve, the regulator includes a manually operable limiting device operable from the outside and movable from a first position, where it allows limited movement of the lever inside of the box-like body, to a second position where it allows unlimited movement of the lever inside of the box-like body.

Abstract: A gas administering method for administering gas to an airway of a patient having a nasal vestibule and for use with a gas administering apparatus comprises a primary gas source that is operable to provide gas and a nasal vestibular portion arranged so as to receive the gas from the primary gas source. Further, the nasal vestibular portion is capable of releasing the primary gas into the nasal vestibule. The method comprises inserting the nasal vestibular portion into the nasal vestibule, forming a seal between the nasal vestibular portion and an inner surface of the nasal vestibule, administering an amount of a gas from the primary gas source at a constant flow rate into the nasal vestibule via the nasal vestibular portion, and administering an anesthetic to the patient. The anesthetic induces depression of a portion of the nervous system of the patient.

Abstract: A method and apparatus for treating snoring of a patient includes providing an implant for altering a dynamic response of a soft palate of the patient to airflow past the soft palate. The implant is embedded in the soft palate to alter the dynamic response. The implant has multiple fibers braided along a length of the implant.

Abstract: Methods are provided for cerebral perfusion augmentation in patients suffering from global or focal cerebral ischemia. Methods include partial or complete obstruction of the femoral or iliac arteries or the inferior vena cava, external compression of the iliac, femoral, or brachial arteries, placing the patient in a trendelenberg position, applying one or more compression members to the extremities, or removing portion(s) of cerebral spinal fluid. Partial obstruction of a vessel can be accomplished by a device comprising an elongate catheter and a distally mounted expandable member. The expandable member may comprise one or two balloons. Other medical devices, such as an angioplasty, stent, or atherectomy catheter, can be inserted distal the expandable member to provide additional therapeutic intervention.

Abstract: A smoking article is manufactured through supplying a tobacco filler material onto a tobacco wrapping paper sheet that is transferred, wrapping the tobacco filler material supplied onto the tobacco wrapping paper sheet with the tobacco wrapping paper sheet so as to prepare a rod body, and cutting the rod body into a plurality of tobacco rods each having a prescribed length. The tobacco filler material contains at least 20% by weight of expanded tobacco material. The tobacco wrapping paper sheet is coated with the burn adjusting agent during transfer of the tobacco wrapping paper sheet.

Abstract: A filter such as a cigarette filter having a metal reagent which selectively binds with a gaseous component of a gas stream such as tobacco smoke. The metal reagent comprises nanometer or micrometer size clusters of a transition metal or alloy containing a transition metal. The transition metal can be incorporated in an intermetallic compound such as titanium aluminide or iron aluminide. The metal clusters can be incorporated in or on a support material such as silica gel, porous carbon or a zeolite. The metal reagent can remove the gaseous component by selectively binding to unsaturated hydrocarbons such as 1,3-butadiene. The binding can occur by insertion of a metal atom of the metal reagent into a C—H bond or a C—C bond of the gaseous component.

Abstract: A transmission for changing rotary motion into angularly reciprocating motion and adapted to be mounted on the output end of a power unit of the type having a rotary drive output and used to drive a tool. The transmission is comprised of a support member, a driving resinous member supported by the support member for rotary motion, and a driven resinous member supported by the support member for reciprocating angular movement by the support member. The transmission subassembly is formed by the driving resinous member, driven resinous member and support member and adapted to be mounted on the output end of the power unit with a rotary drive output mechanically coupled to the driving resinous member. A driving cam surface is disposed on a portion of the driving resinous member. A driven cam surface is disposed on a portion of the driven resinous member. The driving cam surface is in contact with the driven cam surface during at least a portion of the cycle of rotation of the driving cam surface.

Abstract: A hair coloring applicator for applying a hair coloring material to one or more strands of hair using a rotating brush. The hair coloring applicator may include one or more brushes rotatably coupled to a body. The body may include a housing having at least one opening for receiving one or more strands of hair. The brush may include a plurality of bristles configured to contact the one or more strands of hair without tangling or snagging the hair. The bristles of the brush receive a hair coloring material and apply the material to strands of hair by contacting the hair. The hair coloring applicator may simultaneously apply one or more colors of hair coloring material to strands of hair.

Abstract: An ornamental toothpick system has a toothpick and an ornamental extension having a body with an outer surface comprising one or more of a specular finish, ornamental indicia or text, and an engagement interface engaging the ornamental extension to the toothpick.

Abstract: A method of manufacturing a semiconductor device including a first step of depositing a first film and a second film on a conductive layer in this order and etching a desired portion of the second film with a first etching gas until the first film is exposed, the first film being made of one of a silicon nitride film and a silicon nitride oxide film, the second film being made of a silicon oxide film, a second step of removing a reaction product deposited on the first film through the first step with a second etching gas to expose the first film, a third step of etching the first film exposed through the second step with a third etching gas until the conductive layer is exposed and a fourth step of removing a reaction product deposited on the conductive layer through the third step with a fourth etching gas, thereby forming a concave portion penetrating the first and second films to reach the conductive layer surface.

Abstract: Contaminants are removed from a semiconductor wafer by the in-situ generation of oxidizing species. These active species are generated by the simultaneous application of ultra-violet radiation and chemicals containing oxidants such as hydrogen peroxide and dissolved ozone. Ultrasonic or megasonic agitation is employed to facilitate removal. Radicals are generated in-situ, thus generating them close to the semiconductor substrate. The process chamber has a means of introducing both gaseous and liquid reagents, through a gas inlet, and a liquid inlet. O2, O3, and H2O vapor gases are introduced through the gas inlet. H2O and H2O2 liquids are introduced through the liquid inlet. Other liquids such as ammonium hydroxide (NH4OH), hydrochloric acid (HCI), hydrofluoric acid (HF), and the like, may be introduced to further constitute those elements of the traditional RCA clean. The chemicals are premixed in a desired ration and to a predetermined level of dilution prior to being introduced into the chamber.

Abstract: A method for the reprocessing of a device having internal passageways by applying a fluid at a plurality of pressures to the internal passageways of the device to permit reuse of the device in a clean environment includes applying a fluid having a single input pressure to a pressure differentiation device having first and second pressure control fittings for providing first and second differing pressure outputs in accordance with the single input pressure and transmitting the fluid at the first and second differing pressures from the pressure differentiation device to the internal passageways. The internal passageways are reprocessed with the transmitted fluid at the first and second differing pressures, whereby the internal passageways are reprocessed at differing pressures in accordance with the single input pressure.

Abstract: Providing liquid treatment equipment capable of largely reducing a frequency of discarding a treatment solution as a whole and capable of implementing smooth and high quality liquid treatment with less manufacturing burden. Equipment comprises a treatment solution bath capable of accommodating a treatment solution for implementing liquid treatment to a substrate to treat, a treatment solution circulating system circulating the accommodated treatment solution between the outside of the treatment solution bath, and a product removal unit removing a reaction product due to the liquid treatment contained in the circulated treatment solution. By circulating the accommodated treatment solution between the outside of the treatment solution bath, reaction products contained in the circulated treatment solution are removed by means of the product removal unit.

Abstract: The present invention pertains to a system for cleaning wafers that includes specialized pressurization, process vessel, recirculation, chemical addition, depressurization, and recapture-recycle subsystems, as well as methods for implementing wafer cleaning using such a system. A solvent delivery mechanism converts a liquid-state sub-critical solution to a supercritical cleaning solution and introduces it into a process vessel that contains a wafer or wafers. The supercritical cleaning solution is recirculated through the process vessel by a recirculation system. An additive delivery system introduces chemical additives to the supercritical cleaning solution via the solvent delivery mechanism, the process vessel, or the recirculation system. Addition of chemical additives to the sub-critical solution may also be performed. The recirculation system provides efficient mixing of chemical additives, efficient cleaning, and process uniformity.

Abstract: An umbrella canopy orientating drive is applied to a large-sized umbrella. The umbrella has a central rod comprised of an upper section to which a canopy is attached and a lower section positionable on a fixed surface. The umbrella canopy orientating device includes a diverging portion having a skirt-like opening to receive the lower section of the central rod; a tube portion receiving the lower end of the upper section of the central rod; a pair of pin holes formed on the diverging portion; a pin hole formed through the upper end of the lower section; and a pin inserted through the pin holes of the diverging portion and the pin hole of the lower section to pivot the diverging portion and lower section, whereby the upper section and thus the canopy are allowed to rotate about the pivot pin with respect to the lower section between a neutral position and an inclined position to orientate the canopy in an inclined direction with respect to the lower section.

Abstract: A collapsible structure having at least one foldable frame member having a folded and an unfolded orientation, with a fabric material covering portions of the frame member to form at least one panel when the frame member is in the unfolded orientation, and a mat coupled adjacent the bottom side of at least one of the at least one panel.

Abstract: A tent structure includes four posts, four scissor-like linking rod sets, four retractable rod sets and a connector. The four posts are placed on four corners of the tent to form a square structure. Each post comprises a fixture at the top portion with a sleeve thereon at an upper portion and a sliding seat thereon at a lower portion. The sliding seat comprises a supporting rod. The four scissor-like linking rod sets are secured between the posts, respectively. One end of each retractable rod set is inserted through the sleeve of each post and the other end of the retractable rod set is pivoted to the connector, thus when the posts are expanded outwardly, the scissor-like linking rod sets are also expanded to form an arcuate tent.

Abstract: A method for fabricating a microfluidic device where first and second substantially flat platens are provided. Multiple substantially planar, substantially metal-free, adhesiveless polymer device layers, the device layers including a first cover layer, second cover layer, and at least one stencil layer defining a microfluidic channel penetrating through the entire thickness of the stencil layer also are provided. Each stencil layer is disposed between other device layers such that the channel is bounded laterally by a stencil layer, and bounded from above and below by surrounding device layers to define an upper channel surface and a lower channel surface. The device layers are stacked between the first platen and the second platen. The stacked device layers are controllably heated according to a heating profile adapted to form a substantially sealed adhesiveless microfluidic device wherein each upper channel surface remains distinct from its corresponding lower channel surface.

Abstract: A vapor vent valve for a fuel tank that includes a vapor outlet that connects an interior of the fuel tank with an exterior of the fuel tank. The vent valve also includes a fill cup that has an opening at one end and a sidewall that extends from the open end. A shell defines an interior space and is disposed partially in the fill cup. The shell includes a sidewall that has an opening and an upper edge. A flow passage is defined between the fill cup's sidewall and the shell sidewall to allow fluid which flows into the opening of the fill cup to enter the interior space through the opening in the sidewall of the shell. A float is received in the interior space and is responsive to the level of liquid fuel in the interior space. A closure pivotally carried by the shell is movable to a closed position to prevent fluid flow through the vapor outlet. The closure is also movable to an open position which allows fuel vapor to exit the fuel tank.

Abstract: A fluid vent (26) for venting fluid from the annulus between the inner surface of a rigid conduit (20) and the outer surface of a conduit liner (10). The fluid vent (26) consists of a length of rigid conduit (34) containing a multiplicity of apertures (32) extending through the wall of the conduit and arranged in an annular pattern around the circumference of conduit (34). The fluid vent (26) further comprises means defining a closed annular volume (36) extending around the exterior circumference of the conduit (34) and interconnecting the outer ends of the apertures (32) with at least one fluid outlet passage (40) located on the exterior of the conduit (34) and communicating with said annular volume (36). The fluid vent can be used to expel water or other liquids from the annular space when retro-fitting a liner to a conduit, venting gas which has permeated through the lining into the annulus, or for assisting in the movement of fluid through the annulus.

Abstract: A dual-action vent check valve is disclosed. The valve includes a first check valve which is responsive to elevated fluids inside the valve. A second check valve is responsive to elevated fluids external to the valve. The first check valve prevents overflow from a vented structure, such as a sewer out-fall line, from passing through and out of the valve, thereby preventing spills. The second check valve operates to prevent floodwater from passing into an underground structure, such as a sewer, through the vent. One embodiment of the invention includes a basket for enclosing a deodorizing material inside the valve for deodorizing gases which pass through the valve.

Abstract: A tool and method of utilizing the tool to release pressurized gas trapped between a main valve and a safety valve of a portable liquified petroleum gas tank is disclosed. The tool includes a tank safety valve release member structured to be coupled with the outlet of the fuel tank. The tank safety valve release member is configured to be inserted into the tank outlet and move the tank safety valve to an open position so that pressurized gas can escape to atmosphere.

Abstract: A valve proportioning assembly that incorporates a check valve assembly is improved in manufacture and assembly. The valve proportioning assembly includes a housing having a blind opening that receives a sub-assembly of two separate non-metallic components that mate via an interference fit or snap-fit together enclose the check valve assembly. The non-metallic components enclose the check valve assembly. It includes a spring and spring follower so that a sub-assembly is formed for insertion into a blind bore. This minimizes potential misassembly, provides for a wider array of design configurations, and offers the additional advantage of adding more complete informational indicia directly into the molded components.

Abstract: A drain cover assembly includes a closure device operable so as to close and open a drain hole in a cover plate of a drain cover unit. The closure device includes a pivot arm having a mounting portion connected pivotally to the cover plate, a flow control portion extending from and disposed on a first side of the mounting portion and registered with the drain hole, and a weighted portion extending from and disposed on a second side of the mounting portion and having a weight sufficient to overcome the weight of the flow control portion so as to cause the pivot arm to pivot from an open position to a normal closed position. The pivot arm pivots to the open position when the flow control portion is subjected to an applied load through the drain hole that is sufficient to overcome the weight of the weighted portion.

Abstract: The present invention relates to an adjustable valve for a toilet in which the valve remains in a lower setting unless it is activated by the user to a higher setting and automatically returns to the lower setting after flushing the toilet. The amount of water used for each flush is dependent on the water level in the toilet tank. The water level in the tank is set by adjusting the height of the valve assembly. The valve assembly can be activated by the user to raise the height of the valve assembly and maintain the height using a release clip, thereby increasing the amount of water in the tank. When the handle is pressed to flush the toilet, the release clip is pulled back by a chain extending from the handle and the adjustable valve springs back to the lower setting.

Abstract: A fluid supply apparatus with a plurality of flow lines branching out from one pressure regulator with the flow lines arranged in parallel and constructed so that opening or closing one flow passage will have no transient effect on the steady flow of the other flow passages. Each flow passage is provided with a time delay-type mass flow controller MFC so that when one closed fluid passage is opened, the mass flow controller on that flow passage reaches a set flow rate Qs in a specific delay time ?t from the starting point. The invention includes a method and an apparatus in which a plurality of gas types can be controlled in flow rate with high precision by one pressure-type flow control system.

Abstract: A check valve is placed in a conduit for pressurized fluids, and comprises a cylindrical external housing having inlet and outlet ends, a cylindrical internal spigot, and an elastomeric sleeve fitted over the spigot. It is sealed at the second end, and has a plurality of radially directed vent apertures along its length. The elastomeric sleeve is securely fitted to the internal spigot, in the region of the first, inlet end. The elastomeric sleeve has an internal diameter and an elastic memory such that it fits and adheres snugly to the outer periphery of the spigot, and its elasticity is overcome at a positive gauge pressure of between 5 and 20 psi so that pressurized fluid will flow from the vent apertures. Backflow of fluid at substantially zero or negative gauge pressure is precluded.

Abstract: A liquid stabilizing deflector baffle system, including a method and an apparatus, including a plurality of deflectors interconnected together to provide a baffling effect on liquid in which it is installed.

Abstract: An insert or cartridge that fits into a cavity in a valve body provides a check valve function and an anti-cavitation function and a pressure relief function. This insert is substantially circular and has an internal cavity with a valve assembly that has two pairs of valve seats, one pair of valve seats providing the anti-cavitation function and the other pair of valve seats providing the pressure relief function. The outside of the insert itself engages with a sealing surface in the cavity in the valve body to provide the check valve function.

Abstract: The invention relates to a device comprising at least one safety shut-off control valve. A safety valve is optionally connected to said safety shut-off control valve, connected in series in the fluid flow path. In the safety shut-off control valve, a sealing valve is returned to a sealing position against a seat by means of a return spring, and is controlled by a linear actuator and a connecting rod for continuous adjustment of the valve opening. The connecting rod comprises two independent segments which are at least partially made from a ferromagnetic material and which are magnetically coupled to a magnetic coupling circuit that is activated by a coil. While electric power is being supplied to the coil, the magnetic field that said coil creates maintains the linking rod segments coupled to one another, such that the linear actuator can control the sealing valve.

Abstract: An electro-hydraulic valve is provided for use in a system to control flow and/or pressure within the system. An electro-hydraulic valve arrangement includes a housing and a valving mechanism disposed in the housing. The electro-hydraulic valve arrangement has a hold coil assembly connected to the housing adjacent to the valving mechanism. A force control member having a clapper face is positioned adjacent to the hold coil assembly and the clapper face thereof is maintained at a predetermined distance from a coil face of the hold coil assembly. A double precision adjustment mechanism is operative associated with the force control member and is operative to precisely control the distance between the coil face and the clapper face.

Abstract: A tuning cable assembly comprising a reinforced tube, a tuning cable placed within said reinforced tube, where the tuning cable is comprised of a thermoset material or a cross-linked thermoplastic material, and a narrow annular cavity formed between the inner surface of the reinforced tube and the outer surface of the tuning cable. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. This abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

Abstract: The invention relates to a fuel pressure damping system for use in a hydraulic system. The invention introduces specifically sized restrictors in the fuel passage to control the maximum operating system pulse magnitude as well as damping the overall pulsations of the system.