874 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 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 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.

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 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.

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.

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.

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.

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.