888 results about "Fuel line" patented technology

A system and method for fueling multiple saddle tanks of hydraulic fracturing equipment from a single self-propelled cart. The cart having multiple retractable fuel lines for providing and obtaining fuel. Each retractable fuel supply line uses a flowmeter, a ball valve, and an electrically actuated valve to provide remote control to a controller based on a user's selected fueling requirements. An electronic reporting system provides fuel data to operators and users. Fuel data such as fuel tank status, an amount of fuel usage over a stage level, a daily level, or job level along with a fill level of the fuel tank.

An apparatus and method for cleaning either a diesel or a gasoline fuel system. The automatic fuel cleaner apparatus comprises a diesel service portion and a gasoline service portion. The diesel and gasoline service portions each includes a return hose having a first end capable of being coupled to a fuel line outlet of the fuel system. Each service portion further includes a detergent reservoir having an input connected to the return hose. Each service portion also includes a pump having an input connected to an output of the detergent reservoir. The diesel and gasoline service portions each further includes an output hose having a first end connected to a pump output and a second end capable of being coupled to a fuel line inlet. The gasoline service portion also comprises a pressure regulator connected to the output of the gasoline pump.

A device and a method for flame stabilization in a burner (10), includes a burner housing at least partially enclosing a burner volume, into which may be introduced via at least one fuel line, fuel, and via at least one air feed means, air, forming an air / fuel mixture spreading in a preferred flow direction, which may be ignited in a combustion chamber (11) connecting downstream of the burner housing to form a stationary flame (13). Upstream of the flame (13), a catalyst arrangement (1) is provided through which an air / pilot fuel mixture (4), separate from the air / fuel mixture, is flowable. The catalyst arrangement (1) has at least two catalyst stages which are located one behind the other in the through-flow direction, of which the catalyst stage (3) located upstream, the so-called POX-catalyst, is flow-washable by the air / pilot fuel mixture (4) with an air / pilot fuel mixture ratio λ<1, by which catalyst stage (3) the air / pilot fuel mixture (4) is partially oxidized, and of which catalyst stages the downstream catalyst stage (8), the so-called FOX-catalyst, is flow-washable by a leaned air / pilot fuel mixture (7) with a mixture ratio λ>1, by which the leaned air / pilot fuel mixture is completely oxidized forming an inert hot gas flow (9).

A thermal management system for a gas turbine powerplant with an engine oil line and an engine fuel line incorporates a heat transfer control module that includes a reversible heat pump with a heat pump compressor for circulating working fluid in forward and reverse directions through a working fluid line of the heat pump. The heat control module also includes a first heat exchanger having a heat exchange path for the working fluid between the compressor and a heat pump expansion valve and another heat exchange path for the engine oil. A second heat exchanger has a heat exchange path for the working fluid between the compressor and the expansion valve and another heat exchange path for the engine fuel. The heat pump can be operated in forward or reverse directions depending on whether heat is to be transferred from the engine oil or the fuel to the heat pump working fluid. In another embodiment an engine oil reservoir located between the first heat exchanger and the engine collects the oil before it is introduced to the engine and thus acts as a heat capacitor for the system.

A hydraulic pulsation damper system for installation into an otherwise rigid hydraulic system to absorb and extinguish pressure pulsations being transmitted through the system by hydraulic fluid contained therein. The system is useful in suppressing pulsations in automotive fuel lines supplying fuel to fuel injection systems. The system includes fuel-conducting tubing made of flexible, non-permeable material that includes a convoluted central portion capable of expanding and contracting in response to pulsations in the fuel. Resilient foam is molded around the convoluted portion for controlling expansion of the convolutions. The foam and convoluted tubing are contained within a housing made from a larger-diameter hose having ends sealed as by swaged connectors. The damper system may be bent to accommodate installation with a fuel line in an engine and can conveniently provide a sound-deadening link in the fuel line of a vehicle between a body-mounted portion and an engine-mounted portion thereof.

A fuel cell system includes a primary fuel line to the fuel cell assembly, a jet pump in the primary fuel line and adapted to be driven by the flow of primary fuel, the jet pump having a nozzle, an entrainment chamber downstream of the nozzle and a mixing tube downstream of the entrainment chamber, a fuel exhaust recycle line from the fuel cell assembly opening to the entrainment chamber for supply of fuel exhaust thereto, and a mass flow control device in the primary fuel line upstream of the jet pump for controlling the primary fuel flow rate to the jet pump. The nozzle of the jet pump has an adjustable cross-sectional area to provide a variable area flow of the primary fuel so that the ratio of fuel exhaust entrained by the primary fuel in the entrainment chamber can be varied.

The present invention relates to a fuel system as well as a method for controlling the same. More specifically, it relates to a fuel system of motor vehicles adapted to be powered by alcohol-containing fuels, and specifically by alcohol-containing fuels and by petrol, so-called Flexible Fuel Vehicles (FFV). These vehicles can be powered by fuels with varying alcohol content, and also by pure petrol. The fuel system according to the invention comprises a main tank (1) for fuel, a cold-start tank (2) with fuel which is sufficiently inflammable to be used in connection with cold starts, as well as fuel line system connecting these tanks to each other and to injection means of the engine of the vehicle, where at least one pump (8, 13) is adapted to transfer fuel through the fuel line system. Specifically, the invention relates to a system which is controlled so that fuel is transferred from the main tank (1) to the cold-start tank (2) when the alcohol content of the fuel is below a predetermined threshold value.

Under certain conditions, the fuel delivery system can contribute to the formation of strong dynamic pressures in the combustor of a turbine engine. Embodiments of the invention provide a system for dynamically stiffening the fuel supply passage to suppress damaging combustion dynamics. To that end, a Helmholtz resonator can be placed along and in branched relation to the fuel supply passage. The resonator can produce the effect of adding a pressure release opening at a selected location in the fuel line, causing a shift in the fuel line pressure wave pattern that blocks fuel flow fluctuations at the outlet of the fuel passage at the frequency of the oscillation. The pressure wave shift results in a shifting of the volume velocity wave pattern. Ideally, the resonator can be positioned along the flow path such that the volume velocity of the fuel at the fuel passage exit is minimized.

A system for controlling temperature in an enclosure operates in a low heat or a high heat mode with flame always present. The presently intended use is for providing a cooking grill with a controlled temperature cooking space. An electrically controlled valve having high flow rate and low flow rate settings is interposed in the fuel line for at least one of the burners in the grill. A temperature sensor signals cooking space temperature to a controller that may be a microprocessor. The system includes a keyboard allowing the user to communicate a selected set point to the microprocessor and the microprocessor communicates status to a display. The microprocessor selects the setting of the electrically controlled valve. In a preferred embodiment, the electrically controlled valve is placed in series fuel flow with one of the manually adjustable valves commonly found on cooking grills.

A check valve includes a body defining a passageway through which fuel flows in a first fuel-flow direction during pump operation. The check valve also includes a seat, a seal member, and a biasing member biasing the seal member toward the seat. The seal member is movable between a first seated position in which the seal member is engaged with the seat and the pressure in the fuel rail is substantially equal to the operating pressure, and a second seated position in which the seal member is engaged with the seat and a residual pressure in the fuel rail is substantially less than the operating pressure. The seal member and the seat define a leak path between the fuel pump and the fuel rail permitting fuel to flow in a second fuel-flow direction opposite the first fuel-flow direction when the seal member is in the second seated position.

A polyamide moulding composition with the following constitution is described:(a) from 40 to 90% by weight of a copolyamide, where this is composed of(a1) 1,6-hexanediamine and 1,10-decanediamine and also(a2) terephthalic acid and at least one other polyamide-forming monomer selected from the group of: dicarboxylic acid having from 8 to 18 carbon atoms, laurolactam, aminolauric acid, and / or mixtures thereof;(b) from 10 to 40% by weight of macromolecular plasticizers, with the proviso that these can have been replaced to some extent by low-molecular-weight plasticizers;(c) from 0 to 20% by weight of additives and / or added substances.Uses of this type of moulding composition are also described, in particular for the production of a fuel line, cooling line, oil line or urea line for the automobile sector, as also are production processes to give mouldings.

The present invention is a system for increasing the fuel efficiency of a vehicle of the type having an internal combustion engine, a battery, a vacuum line, and a fuel line that feeds fuel to the engine. The system comprises a hydrogen gas generator and a vacuum regulator. A vacuum regulator is in fluid communication with the vacuum line of the vehicle and an output line of the gas generator. The vacuum regulator includes a vacuum pressure adjustment means for controlling the amount of hydrogen gas that is introduced into the vacuum line of the vehicle. In use, hydrogen gas is introduced into the vehicle vacuum line and then into the engine where it is mixed with the fuel from the fuel line and ambient air. The hydrogen gas increases the atomization of the fuel for more efficient burning thereof in the engine. A fuel additive including an acetone-based compound, a xylene-based compound, and an upper cylinder lubricant may be mixed with the hydrogen gas to further atomize the fuel. An oxygen sensor signal generator that generates a bypass signal replicates the output of a vehicle oxygen sensor under normal operating conductions to keep the air mixture of the engine unaffected. The system may additional include at least one fuel heating means fixed to a high-temperature portion of the engine, such that the fuel is heated before being introduced into the engine so as to further increase atomization of the fuel for more efficient burning thereof in the engine.

A coupling for connecting fuel pipes in an aircraft is provided. At least one of the fuel pipes is capable of movement with respect to the coupling. The coupling comprises a pipe end fitting and a socket arrangement. The pipe end fitting is located within the socket arrangement. At least one resiliently flexible electrical contact is located between the pipe end fitting and the socket arrangement. The coupling may thus form a flexible coupling electrically connecting two pipes to prevent static electricity build-up whilst permitting movement between the pipes.

A deflector at the downstream end of a fuel tube deflects incoming fuel into an annular fuel channel in a fuel swirler of an injector. The deflector prevents direct impact of the cooler fuel on the exposed walls of the swirler body. The deflector can be formed by a tab or other integral portion of the heatshield, or as a separate piece fixed to the heatshield or swirler body. The deflector minimizes disruption of flow through any flow slots that are covered by the deflector, and may have i) a relatively small circumferential extent, such that the deflector covers only a few flow slots, ii) flow openings or slots that allow a portion of the fuel to flow inwardly of the deflector into the otherwise covered flow slot(s), or iii) a space or gap between the side(s) of the deflector and the inner walls of the annular channel.

A no-return loop fuel injection system supplies fuel from a fuel pump to an injector fuel rail, through a fuel line. A biased closed pressure control valve communicates with the fuel line and has a valve head preferably of a diaphragm type carrying a fuel side having first and second areas which are segregated and defined by a valve seat when the pressure control valve is closed. An opposite second side of the pressure control valve is exposed to a reference pressure and a closure biasing force. The pressure control valve opens when a hydraulic opening force induced by a fuel pressure exerted upon the first area, plus a fuel pressure exerted upon the second area, is greater than the net reference pressure and closure biasing forces. Preferably, the first area is smaller than the second area, thus manipulating the effects of the fuel pressures exerted upon the first and second areas with respect to opening the valve. When the pressure control valve is open, the system operating pressure exposed to both the first and second areas is sufficient to produce the hydraulic force necessary to keep the valve open. Preferably, the pressure control valve is part of a pressure valve assembly of a fuel pump module located inside a fuel tank. The pressure valve assembly preferably has a flow check valve orientated in a parallel flow configuration to the pressure control valve when the fuel pump is of a variable speed type, or, for systems utilizing constant speed pumps the check valve is replaced with a flow bypass orifice.

Disclosed is a fuel filter in which is disposed in a fuel suction port of a fuel tank or in a fuel line and used to filter the fuel. At least one of filter materials constituting the fuel filter is made into a multifunctional filter material having a function of trapping dust of different particle diameters in stages, by differing the diameter of the pores in the filter material from the primary side to the secondary side of the filter material so that the size of the pores decreases toward the secondary side.

In a hydrogen gas line where the composition of the gas is primarily hydrogen, impurities present in the gas line will typically reduce the speed of sound. Accordingly, an acoustic sensor can be used in such a hydrogen gas line to indicate when impurities have accumulated in the gas line. In particular, the hydrogen gas line may be in a fuel line for an electrochemical fuel cell system. The sensor may comprise transducers, more particularly piezoelectric transducers, as both sound detectors and / or sound generators. Further, the sensor can measure either the speed or frequency of sound to determine the hydrogen concentration. If the fuel is recirculated back to the anode inlet, such a hydrogen sensor in the anode exhaust may be used to determine when it is beneficial to purge the anode exhaust to the external atmosphere.

A high-efficiency spacecraft propulsion system, including includes electric pumps inserted in the oxidizer and fuel lines that increase liquid apogee engine (“LAE”) operating pressure and reduce tank-operating pressure. An on-board computer generates pump drive signals, in response to measured oxidizer and fuel line pressures, that are input to the pump controller electronics. The controller electronics provides current drives to the pump motors. The system uses an LAE that can operate at higher thrust chamber pressures (e.g., 500 psia) than standard LAEs, where pump-fed rocket motors have integrated turbopumps that are fuel operated. The turbopump increases LAE complexity and cost, reduces fuel efficiency, and is not compatible with active thrust and mixture ratio control.

In a fuel supply system for an internal combustion engine having two separate storage containers for liquid fuels, both connected to a first controllable valve which is connected, via a connecting line including a fuel pump to an inlet of a second controllable valve having two outlets in communication by separate fuel lines with a fuel injection nozzle of the internal combustion engine, each of the two separate fuel lines includes a fuel pressure regulator, one being in communication with one and the other with the other of the two separate fuel storage containers for returning exess fuel to the fuel storage container from which fuel is being supplied to the fuel injection nozzle.

The fuel supply apparatus according to the invention is improved in a simple manner in that it is provided with short fuel lines. According to the invention, the drive line of the suction jet pumps is connected to a pressure line downstream of the fuel supply pump and has at least one check valve or a siphon.

The apparatus and method convert the fuel system of an internal combustion engine in a pre-existing (used) vehicle to operate on a mixture of fuels (like ethanol and gasoline) from a single fuel tank. The apparatus includes a fuel composition sensor installed in the fuel line and an electronic control unit with at least one fuel injector driver circuit for controlling an output signal to at least one fuel injector for controlling the air to fuel ratio of the engine. The electronic control unit controls both ignition timing and the air to fuel ratio of the engine based upon the percentage or ratio of the alternative fuel to gasoline from the fuel composition sensor. The electronic control unit receives both timing signals and fuel injector control signals from the engine's original Engine Control Module and the original emission control devices are not modified or replaced.

A check valve (8) and a booster (9) are inserted in parallel in a supplied fuel line (6) connecting a common rail (5) and an injection valve (7), a piston (10E) of a hydraulic circuit (10) is driven for positioning by a piezoelectric actuator (PA-1), the pressures in a chamber (9Db) of the booster (9) and the pressure in a fuel chamber (7G) of the injection valve (7) are selectively lowered by controlling the alignment state between ports (10Eb), (10Ec) provided in the piston (10E) to communicate with a low-pressure portion and an opening 10Aa of a first chamber 10A and an opening (10Ba) of a second chamber (10B) of cylinder (10C), whereby the pressure of the fuel supplied to the fuel reservoir (7B) of the injection valve (7) is rapidly switched to one or the other of high-pressure fuel from the common rail (5) and pressure-boosted high-pressure fuel from the booster (9).

Internal combustion engines operate by igniting a mixture of liquid fuel and air inside its combustion chamber. The energy from the ignition is converted to mechanical energy that is used to power a vehicle. Research indicates that adding hydrogen gas into the combustion chamber improves the efficiency of the engine. The present invention is an electrolysis system that produces hydrogen and oxygen gases and injects them into the fuel line of the engine to create a mixture of the gases and the liquid fuel that is subsequently introduced into the combustion chamber for ignition. The operating temperature of the engine is lower if the gases are injected into the fuel line rather than directly into the combustion chamber.

The present invention provides a barbecue grill assembly with a support frame assembly including a left and right frame assembly. These frame assemblies are formed from a front frame member, a rear frame member, and a side member that connects the front and rear frame members. The grill assembly can have a first and a second horizontal member to connect the frame members of the left and right frame assemblies. The barbecue grill assembly further comprises a cooking chamber with a cover hingeably connected to a firebox. The firebox has a pair of opposed end walls with a mounting assembly that engages a limited extent of the front and rear frame members when the cooking chamber is connected to the support frame assembly. The end wall also have extending rails that define a channel configured to house conduit and fuel lines. Preferably, the left and right frame assemblies are pre-welded to facilitate assembly of the barbecue grill assembly.

This invention provides a method of bonding substantially non-fluorinated polymeric material to dissimilar polymers, particularly fluoropolymer materials, utilizing a bonding composition comprising base-treated amide group-containing substantially non-fluorinated polymer. Multi-layer articles and composite constructions, including retroreflective sheeting, fuel line hoses, and adhesive articles made of a fluoropolymer layer and a substantially non-fluorinated layer are also provided.

In an antistatic structure of a fuel pipe, the fuel pipe to be charged in contact with a fuel, and a brake pipe connected electrically to a vehicle body are coupled to each other through a conductive clamp in at least one portion.

A thermal management system for a gas turbine powerplant with an engine oil line and an engine fuel line incorporates a heat transfer control module that includes a reversible heat pump with a heat pump compressor for circulating working fluid in forward and reverse directions through a working fluid line of the heat pump. The heat control module also includes a first heat exchanger having a heat exchange path for the working fluid between the compressor and a heat pump expansion valve and another heat exchange path for the engine oil. A second heat exchanger has a heat exchange path for the working fluid between the compressor and the expansion valve and another heat exchange path for the engine fuel. The heat pump can be operated in forward or reverse directions depending on whether heat is to be transferred from the engine oil or the fuel to the heat pump working fluid. In another embodiment an engine oil reservoir located between the first heat exchanger and the engine collects the oil before it is introduced to the engine and thus acts as a heat capacitor for the system.

The present invention provides a wimble cover shaped combustor of fuel heater comprising a combustion chamber cover, a oil suction wimble liner, a primary combustion barrel, a secondary combustion barrel, an air inlet guide barrel, an air inlet split stream slice, a fuel oil tube and a glow plug; the oil suction wimble liner is applied on the combustion chamber cover internal surface, an oil groove is arranged between the both; the primary combustion barrel is connected to the combustion chamber cover, and the air inlet guide barrel is arranged at outer portion of the primary combustion barrel, and air inlet holes are arranged circumferentially on the barrel wall of the primary combustion barrel; the primary combustion barrel is connected to the back end of the air inlet guide barrel to form a conical contraction hole; the front end of the air inlet guide barrel connects to the air inlet split stream slice which is provided with air split stream holes; the secondary combustion barrel connect is connected to the back end of the air inlet guide barrel; the combustion chamber cover has a conical shape, a fuel oil tube connected onto, a glow plug arranged on top, and tangential air holes are arranged circumferentially on the combustion chamber cover. The invention provides credible, rapid ignition start, uneasily generates carbon deposition, has high combustion efficiency and economical efficiency improved by more than 6%.

An object of the present invention is to avoid an air-fuel ratio difference between cylinders upon recovery from a cylinder deactivation in a situation where some of a plurality of cylinders of an internal combustion engine capable of using a plurality of types of fuels having different properties are to be deactivated upon the halt of fuel injection from an injector.To accomplish the object, a control device to which the present invention is applied includes a fuel property sensor that is installed in a fuel line between a fuel tank and a delivery pipe, and detects a fuel property change from a change in a signal of the fuel property sensor. Upon detection of a fuel property change, the control device prohibits the deactivation of a cylinder before the completion of a fuel property change in the delivery pipe.