281 results about "Fuel line" patented technology

A fuel system for a hydrogen fueled aircraft propulsion system comprises first and second hydrogen fuel tanks configured to store liquid hydrogen, first fuel line and second fuel lines configured to supply hydrogen from the first hydrogen fuel tank to a combustor of a first gas turbine engine and from the second hydrogen fuel tank to a combustor of a second gas turbine engine respectively. First and second fuel pumps are provided, each being configured to pump fuel in a respective first and second fuel line. First and second fuel heaters are provided, each being configured to heat fuel in a respective first and second fuel line. A fuel cross-feed fuel line is provided, which is configured to transfer fuel between the first and second fuel lines. The fuel cross-feed line is provided downstream in fuel flow of the first and second fuel heaters.

Embodiments of systems and methods for supplying fuel, enabling communications, and conveying electric power associated with operation of a hydraulic fracturing unit of a plurality of hydraulic fracturing units are disclosed and may include a fuel line connection assembly configured to be connected to the first hydraulic fracturing unit and to supply fuel from a fuel source to a gas turbine engine connected to the hydraulic fracturing unit. A system also may include a communications cable assembly configured to be connected to the hydraulic fracturing unit and to enable data communications between the hydraulic fracturing unit and a data center or another hydraulic fracturing unit. A system further may include a power cable assembly configured to be connected to the hydraulic fracturing unit and to convey electric power between the hydraulic fracturing unit and a remote electrical power source or the plurality of hydraulic fracturing units.

A fuel line, terminating in a refuel connector, is used to fuel / defuel an aircraft, for example with liquid hydrogen. A barrier is disposed around the area where the refuel connector connects to an aircraft fuel port, and is sealed against the aircraft wing with a seal. A gas line runs generally parallel to the aircraft fuel line, and supplies inert gas, for example nitrogen, into the volume defined by the barrier. The inert gas flushes out air present around the refuel connector such that the oxygen concentration in that area is significantly lowered. This prevents ignition of fuel in the event of a fuel leak from the fuel line structure.

This invention discloses an electric heat tracing laying device and its usage method for marine fuel oil pipelines, belonging to the field of electric heat tracing technology. The electric heat tracing laying device for marine fuel oil pipelines includes a traveling frame, and further includes: a traveling assembly mounted on the traveling frame for driving the traveling frame to move axially along the pipeline; the bottom of the traveling frame has an opening for the pipeline to enter; a rotating seat rotatably mounted on the traveling frame, on which an electric heating tape shell is mounted, and the electric heating tape shell releases the electric heat tracing tape outward through a discharge port; and a driving unit mounted on the traveling frame and connected to the traveling assembly. This invention replaces manual labor with mechanical automation, realizing the entire process of spiral winding of the electric heating tape, laying of the aluminum foil tape heat-conducting layer, and segmented fixing of the pressure-sensitive tape, solving the problems of low efficiency and insecure fixing in traditional methods, and significantly improving the safety and maintenance efficiency of marine fuel oil pipelines in low-temperature environments.

A propulsion system comprises a propulsive hydrogen-burning gas turbine engine, a first tank storing liquid hydrogen with an ullage and a first fuel line including a fuel pump and a vaporiser, the first fuel line providing gaseous hydrogen to the engine during operation of the system. A second tank storing gaseous hydrogen is coupled by a second fuel line to the first fuel line at a position thereon between the vaporiser and the engine, providing for engine start-up (when the vaporiser is inoperative) and power-boosting during operation of the system. A duct connects gaseous hydrogen within the second tank to the ullage in the first tank in order maintain pressure in the first tank as liquid hydrogen within it is depleted, preventing cavitation of liquid hydrogen within the fuel pump.

In another aspect, a method for fueling an aircraft, the method including storing liquified gas fuel using a fuel tank, wherein the fuel tank is configured to store liquified gas fuel, fueling an aircraft using a fuel line. Fueling the aircraft may additionally include the fuel tank with liquified gas fuel to a desired level, wherein a desired level comprises fuel for a plurality of flights plus reserves. Filling may also include removing the fuel line as a function of the desired level. The method may additionally include venting the fuel tank using a vent line in fluid connection to the fuel tank. The fuel tank may then be prepared for flight as a function of a desired level. Finally, the method includes flying a plurality of flights using the aircraft.

A seaplane float frame apparatus with extra fuel storage, and a method of installing, comprising: 1) a middle section housing at least one auxiliary fuel storage tank; and 2) two opposing side panels affixed to the middle section, extending outward from about 45-60-degrees from the parallel, each of the two opposing side panels comprising a bottom flat edge fit-able to a float (e.g., carbon composite). The middle section further comprises a fuel pump and a fuel line attached to the auxiliary fuel storage tank(s) and to a main fuel tank within an airplane fuselage-engine. Electrical components enable the pilot, or automatedly as needed, to pump fuel from the frame's tanks. The two opposing side panels comprise triangular shaped cutouts to reduce the float frame's weight and drag, and a built-in steps, a bar, and non-skid coating on the floats to assist in climbing safely into / out of the cockpit.

A method for discharging water from a fuel cell system (100), wherein the fuel cell system (100) has at least one fuel cell stack (101), an air path (10) in fluid communication with a cathode (105) of the fuel cell stack (101), an exhaust line (12), and a fuel line (20) in fluid communication with an anode (103) of the fuel cell stack (101), wherein at least one controllable valve (46) is arranged in the air path (10) and / or the exhaust line (12). The at least one controllable valve (46) is controlled by a control unit (60) in order to generate pressure oscillations.

A fuel system for an engine comprising a source of liquid ammonia; a fuel injector; an ammonia fuel line extending between the source of liquid ammonia and fuel injector for transferring ammonia from the source of liquid ammonia to the fuel injector; an ammonia pump arranged in series in the ammonia fuel line; an ammonia cracker; an ammonia cracker line extending between the source of liquid ammonia and ammonia cracker for the transfer of ammonia from the source of liquid ammonia to the ammonia cracker; a cooling jacket arranged in series in the ammonia cracker line; and, a pressure reducing valve arranged in series in the ammonia cracker line between the source of liquid ammonia and the cooling jacket; the cooling jacket extending through or at least par ally surrounding the ammonia pump and being in thermal contact therewith.

This invention belongs to the field of ramjet technology and provides a wide-speed range ramjet fuel supply system and method driven by a pyrolysis oil-gas turbine. The system comprises a fuel tank, a centrifugal pump, a motor, an oil-gas turbine, a battery, an electromagnetic control module, fuel lines, a pyrolysis fuel vapor line, a combustion chamber, and a regenerative cooling channel on the outer wall of the combustion chamber. Through the connection between the centrifugal pump, the regenerative cooling channel, and the oil-gas turbine, the system utilizes the cracking of hydrocarbon fuel into small-molecule pyrolysis kerosene vapor to drive the turbine rotor to produce work. The motor then assists in starting the ramjet, thereby resolving the power generation challenges of the ramjet mode and alleviating thermal protection issues.

The invention relates to a diagnostic method (100) for diagnosing the state of tank valves (203) in a tank system (200), the tank system (200) having a plurality of fuel tanks (201), each having a tank valve (203), and a fuel line arrangement (207) for guiding fuel out of the fuel tanks (201).

The invention discloses an intelligent control method for a multi-fuel-tank fuel system of an agricultural tractor, and relates to the technical field of agricultural machinery fuel control, and the method comprises the following steps: under the control of a processor, taking an ignition switch state as a trigger: obtaining a first environment temperature during power-on, and outputting a fuel pipeline switching valve opening / closing signal in combination with the fuel quantity of a low-grade fuel tank; pre-selecting an oil path; after starting, the heating electromagnetic valve is opened and closed according to the temperature of cooling liquid, and the high-grade fuel tank is switched back based on the temperature of fuel oil, so that heating and closed-loop management of an oil path are realized; and when the power is off, taking a second environment temperature, forcibly switching to a low-grade oil way when the temperature is less than or equal to 4 DEG C, operating for a set time, and then flameout, so that the system retains low-grade fuel oil. By automatically switching fuel oil and heating control, reliable starting and economical operation of the tractor in a low-temperature environment can be ensured, low-grade fuel oil is reserved in a pipeline after flameout, and difficulty in restarting is avoided.

The present invention relates to a system for mixing hydrogen into fuels, characterized in that it comprises a gas-in-liquid mixing valve which is supplied with gaseous hydrogen via a line originating from a hydrogen storage tank with a compressor controlled by an operating panel, wherein the outlet of the mixing valve is connected to the fuel line which supplies the boiler, engine, burner or the like.

Drive device (1) for driving a machine, in particular a commercial vehicle, with a motor unit (2) for generating mechanical energy, characterized by an energy unit (3) for providing electrical energy, an electrolyzer system (4) for producing a fuel, in particular hydrogen, wherein the electrolyzer system (4) is connected to the energy unit (3) for energy transmission and a fuel line (5) for conducting the fuel, wherein the fuel line (5) connects the electrolyzer system (4) to the engine unit (2).

The invention provides a self-adaptive starting method and system for a fire-fighting vehicle in a low-temperature environment, and the method comprises the steps: S1, obtaining real-time temperature data from the environment and each key part of the fire-fighting vehicle through a sensor array, judging whether the fire-fighting vehicle is in a low-temperature state or not through a threshold comparison method according to the collected temperature distribution, and obtaining a low-temperature activation signal; s3, if any element in the deviation matrix exceeds a preset deviation threshold value, integrating the elements of the deviation matrix to generate a power adjusting instruction, and obtaining a dynamic power output sequence; s4, a dynamic power output sequence is adopted to drive multiple heaters to conduct parallel heating on an engine cylinder body and a fuel oil pipeline, meanwhile, the temperature change rate in the heating process is monitored, and the heating balance degree is judged; and S7, acquiring a starting preparation signal from the vehicle control unit according to the coordination completion mark, releasing the starting sequence if the temperature coordination index reaches a preset index threshold value, and judging the response capability of the vehicle. According to the invention, the quick response capability of the vehicle in an extreme environment is obviously improved.

A system and method for fueling an aircraft using a plurality of fuel tanks are disclosed. The method includes conditioning a plurality of fuel tanks, wherein the plurality of fuel tanks includes at least a first fuel tank and at least a second fuel tank, fueling, using at least a fuel line, the aircraft, wherein fueling further includes filling the at least a first fuel tank with a first fuel and the at least a second fuel tank with a second fuel to a desired level, combining, using at least a fuel cell, the first fuel with oxygen to produce electricity, propelling, using at least a flight component, the aircraft, consuming the first fuel during a first flight mode of the aircraft and consuming the second fuel during a second flight mode of the aircraft.

The application relates to the technical field of aerospace equipment, in particular to a stretchable release mechanism for separating a lunar soil penetration projectile communication antenna, which comprises a main body, the main body comprising a first mounting surface and a second mounting surface, the first mounting surface being arranged obliquely to the second mounting surface; an antenna oscillator arranged on the first mounting surface and provided with a locking ring for locking the antenna oscillator; a super-elastic conductive member sleeved on the second mounting surface; and a fuel line release mechanism arranged on the super-elastic conductive member, one end of the fuel line release mechanism being connected with the locking ring and the other end being connected with one end of the second mounting surface away from the first mounting surface. The arrangement of the fuel line release mechanism avoids the risk of failure of the stretchable release mechanism for separating the lunar soil penetration projectile communication antenna.

The invention provides a heat management system and a hybrid power vehicle with the heat management system, the heat management system is applied to the hybrid power vehicle, and the heat management system comprises a fuel oil heating pipeline used for heating fuel oil in a fuel oil tank; the battery circulating pipeline is used for exchanging heat with the battery, and the battery circulating pipeline can be connected with the fuel oil heating pipeline in series so as to transfer heat generated by the battery to the fuel oil tank and heat the fuel oil, so that the fuel oil can be sprayed in a flash boiling manner. According to the technical scheme, the problem that in the prior art, the cost is high due to the fact that a heater is additionally arranged on a fuel oil pipeline to achieve flash boiling injection of fuel oil can be effectively solved.

Method for starting a fuel cell system (1), the fuel cell system (1) having a fuel cell stack (101), an air line (10), an exhaust gas line (12) and a fuel line (20) having a recirculation circuit (50), a first valve (61) in the air line (10) and a second valve (62) in the exhaust gas line (12) being closed before starting. The method comprises the following steps: a. Starting an air compressor (11) in the air line (10); b. Opening a recirculation valve (65) in the exhaust gas recirculation line (66); and c, opening the first valve (61) and the second valve (62).

The utility model relates to the technical field of automobile pipeline support, and disclose a kind of automobile pipeline support of convenient assembly, including support plate, the one side of support plate is equipped with through slot, the inside of through slot is equipped with connecting plate, the one side of connecting plate is fixedly connected with arc plate;Pivot, install in the inside of connecting plate, the pivot is respectively with the rotation connection of both sides of through slot inner wall.This utility model can be assembled with the curved state by bending part for staff according to actual condition to fuel pipeline, so as to improve applicability;Through the cooperation between positioning assembly and support plate, the stable assembly of fuel pipeline can be realized, greatly reduce the probability that fuel pipeline is separated from support plate due to vibration;Through fastening assembly, arc plate can be positioned and fixed as a whole, and it is also convenient for staff to take out fuel pipeline, so as to facilitate the assembly of fuel pipeline.

The utility model provides an automatic feeding device for main fuel pipe installation, and relates to the field of main fuel pipe installation, the automatic feeding device comprises a first fixing plate, a conveying assembly is arranged in front of the first fixing plate, two installation frames are arranged at the top end of the first fixing plate, a pop-up frame assembly is arranged between the two installation frames, and transmission parts are arranged in the installation frames; two collecting assemblies are arranged at the top end of the pop-up frame assembly, clamping assemblies are arranged on the two sides of the collecting assembly located on the upper portion, and connecting assemblies are arranged on the front portions and the rear portions of the clamping assemblies. By means of the clamping assembly and the collecting assembly, when parts collected by the collecting assembly need to be used, the collecting assembly can be driven to move upwards to the needed position through the transmission part and the clamping assembly, use of installation personnel is facilitated, the production efficiency is improved, and the labor intensity is reduced.

A fuel transfer bypass tube and system are provided. The fuel transfer bypass system utilizes a fuel bypass tube and a fuel supply pump to provide fuel to an engine without requiring modification to the engine or preexisting system. The fuel transfer bypass system includes multiple fuel lines that draw fuel from a source to pass through a filter and the fuel bypass tube. The fuel bypass tube includes a single monolithic structure able to reliably transfer the fuel under pressure through an inlet port to an outlet port via a channel. The fuel is delivered to the engine through a line secured to the outlet port. Each inlet and outlet port on the bypass tube includes an annular channel that receives O-rings to form a fluid seal with the respective mounting system. The bypass pump draws electrical power from the engine through a connector and an adaptor without any additional modifications.

This invention discloses a method and system for predicting the flow rate of a fuel atomizing nozzle for an aero-engine. The method includes: determining the dimensional parameters of key components based on a three-dimensional geometric model of the fuel nozzle; meshing the three-dimensional geometric model to construct a numerical mesh model of the fuel nozzle; constructing a physical model of fuel flow within the nozzle; using numerical simulation to discretize and solve the physical model based on the numerical mesh model to obtain the liquid pressure drop, the flow rate of the main fuel line bottom cup, the flow rate of the main fuel line nozzle, and the flow rate of the auxiliary fuel line nozzle; calculating the drag loss based on the pressure drop and the drag loss coefficient; calculating the pressure loss coefficient margin; and calculating the flow rate of the fuel atomizing nozzle based on the pressure drop, the drag loss coefficient, and the pressure loss coefficient margin. This invention achieves accurate and stable calculation of nozzle flow rate through two approaches: importing an external geometric model for numerical simulation calculation and directly using a theoretical prediction model.

The invention relates to the technical field of oiling machine parameter detection, in particular to a real-time monitoring oiling machine working parameter detection method. The detection method comprises the following steps: acquiring to-be-detected working parameters of each position of the oiling machine, wherein the to-be-detected working parameters comprise an oil gun working parameter, an oil pipe working parameter, an oil tank working parameter and a duration working parameter; preprocessing the working parameters to be detected to obtain preprocessed working parameters; the preprocessed working parameters are input into a constructed detection model group, a detection result is obtained, and the detection model group comprises a first detection model, a second detection model, a third detection model and a fourth detection model corresponding to all positions of the oiling machine; and inputting the detection result into a cloud platform monitoring center for monitoring and alarming. According to the invention, the to-be-detected working parameters of each position of the oiling machine can be obtained in real time, so that the monitoring process has timeliness, and the detection efficiency of the working parameters of the oiling machine is remarkably improved.

A fuel line terminating in a refuel connector is used to fuel or defuel an aircraft, for example with liquid hydrogen. A supply of nitrogen housed on an aircraft, for example a Nitrogen Generating System, is used in conjunction with a gas line to supply nitrogen into the fuel line, to flush out potentially combustible materials before liquid hydrogen is supplied through the fuel line. The aircraft supply of nitrogen is also used to supply inert gas, via a gas line, to the Ground Support Equipment refuelling or defuelling the aircraft. This can provide redundancy for the Ground Support Equipment's systems, and may allow the aircraft to operate at less well-equipped airports.

A thermal management system for a work vehicle (10) comprising an engine (50) and a heat-generating non-engine component (140) is disclosed. The thermal management system includes a control system (160) for thermal management and a fuel tank (122) designed to store fuel in liquid or gaseous form. The fuel lines (124, 130, 132) are designed to cool the fuel from the fuel tank (122) for cooling engine components (54, 56, 150) and / or a heat sink.Furthermore, a thermal expansion valve (128, 148) is provided, which is arranged and designed to convey the fuel used for cooling through an opening (136, 154) so ​​that the fuel is subjected to a pressure reduction, wherein all the fuel used for cooling is supplied to the engine (50) for combustion after it has passed through one or more components (54, 56, 150) of the engine (50) or the cooling element (138). A related method is also disclosed.

An apparatus for supplying gas from an aircraft (100, figure 1) to ground equipment (110) comprising a gas supply 318 housed within an aircraft, and at least one gas line 322 in communication between the aircraft gas supply and the ground equipment. The gas used may in this instance comprise liquid hydrogen. A supply of nitrogen 318 housed on an aircraft, for example a Nitrogen Generating System, is used in conjunction with a gas line 322 to supply nitrogen into the fuel line 316, to flush out potentially combustible materials before liquid hydrogen is supplied through the fuel line 316. The aircraft supply of nitrogen 318 is also used to supply inert gas, via a gas line 334, to the Ground Support Equipment (110, figure 1) refuelling or defueling the aircraft 100. This can provide redundancy for the Ground Support Equipment’s systems, and may allow the aircraft (100) to operate at less well-equipped airports. The application comprises a plurality of apparatus and methods relatable to hydrogen / cryogenic refuelling.

The invention relates to the technical field of ships, in particular to a ship double-layer bottom pipe arrangement method and a ship, and the ship double-layer bottom pipe arrangement method comprises the following steps that double-layer bottom pipes are arranged on the ship, and an internal installation space and an external installation space are formed between the double-layer bottom pipes; arranging a ballast water pipeline in the internal mounting space, wherein the ballast water pipeline is communicated with the bottom ballast tank and the side ballast tanks; a fuel oil pipeline is arranged in the internal mounting space, and the fuel oil pipeline is communicated with a combustion cabin; a cabin bottom pipeline is arranged in the internal mounting space, and the cabin bottom pipeline is communicated with a sewage cabin; a track is arranged in the internal installation space in the extending direction of the internal installation space, and a moving trolley used for bearing workers is installed on the track; and arranging a cable in the external installation space. According to the invention, the coating damage of the coating operation caused by dispersed and crossed outfitting operation can be avoided, and the outfitting construction efficiency is improved.

The application provides a heat management system and a hybrid vehicle with the same, wherein the heat management system is applied to the hybrid vehicle, and the heat management system comprises: a fuel heating pipeline for heating fuel in a fuel tank; and a battery circulation pipeline for heat exchange with a battery, wherein the battery circulation pipeline can be arranged in series with the fuel heating pipeline to transfer heat generated by the battery to the fuel tank and heat the fuel, so that the fuel can be flash-boiled and injected. The technical scheme of the application can effectively solve the problem of high cost caused by adding a heater on a fuel pipeline to realize flash-boiled injection of fuel in the related art.