104 results about "Fuel line" patented technology

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 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.

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.

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.

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 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 engine is provided with: an engine body; an intake line connected to a combustion chamber of the engine body; a first fuel line connected to the intake line and configured to supply a first fuel to the intake line; and a second fuel line connected to the intake line at a position downstream of where the first fuel line is connected and configured to supply a second fuel having a lower explosive limit that is lower than that of the first fuel.

A turbine engine has a fuel supply, a first fuel line, a second fuel line, and a combustion section. The fuel supply has a fuel. The combustion section includes a combustion chamber. The combustion chamber is fluidly coupled to both of the first fuel line and the second fuel line.

A combustion head assembly for a burner that reduces combustion byproduct and oil pooling on a flame ring stabilizer or air diffuser element during normal operational cycling. The polymeric bushing directs away or prevents a non-combusted fuel in the fuel line interior portion from the nozzle end after a combustion cycle, and is fabricated from a polymeric material having thermal / electrical insulating properties, which is resistant to decomposition, dissolution, or breakdown when exposed to No. 2 fuel oil, biodiesel fuel oil, such as fluoropolymers, including PTFE (Teflon), fluorinated ethylene propylene (FEP), perfluoroalkoxy (PFA), ethylene-based fluoropolymers (ETFE / ECTFE), and / or polyvinylidene fluoride (PVDF), polyether ether ketones (PEEK), polyphenylene sulfide (PPS), and / or fluoroelastomers (FKM), or acrylonitrile butadiene styrene (ABS). The polymeric bushing is situated within a fuel line interior portion behind a nozzle element, having a channel or bore extending from end to end and in fluid communication with the nozzle element opening.

Fuel cell system (100) comprising at least one fuel cell stack (101), an air path (10) wherein air from the environment reaches the fuel cell via the air path (10), an exhaust gas path (12), a fuel line (20) wherein fuel is transported to the fuel cell stack (101) via the fuel line (20), and a recirculation line (50) wherein the recirculation line (50) is connected to the exhaust gas path (10) via a purge line (40) with a purge valve (41). The purge line opens into the exhaust gas path (12) upstream of a turbine (65) and / or a throttle (65).

A fuel processing system according to one embodiment of the present invention comprises: an engine consuming toxic fuel; and a fuel line through which toxic fuel is supplied to the engine or toxic fuel discharged from the engine flows, wherein the fuel line is provided in a double-pipe structure including an inner pipe through which fuel flows and an outer pipe surrounding the inner pipe, and includes a circulating space processing unit that supplies a dissolving liquid capable of dissolving toxic fuel to the outer space between the inner pipe and the outer pipe.

Systems are provided for an engine fuel delivery system for vehicles under test. In one example, a fuel delivery system includes a bulk fuel storage tank to house bulk fuel at low pressure and an on-board fuel tank to house smaller quantities of pressurized fuel to be fed to a vehicle propulsion system. The fuel delivery system further includes a positive displacement pump to pressurize fuel from the bulk fuel storage tank and feed fuel to the on-board fuel tank. A plurality of valves and sensors are further included with an arrangement of fuel lines to monitor and direct fuel flowing in the fuel delivery system.

The present application belongs to the technical field of continuous detonation engine, and particularly relates to a continuous detonation turbine engine based on coaxial shearing injection, wherein a flame tube of the engine is provided with a fuel converging cavity and a plurality of arrayed coaxial shearing injection units at an end facing a diffuser; each coaxial shearing injection unit is composed of a central air passage and an annular fuel jet slit; a fuel pipeline comprises a fuel total oil supply path attached to the outer wall of the flame tube, a fuel converging pipe and a plurality of fuel shunt thin pipes; the fuel converging pipe is arranged at the outer circumferential side of the outlet end of the flame tube and is in communication with the fuel total oil supply path and the fuel shunt thin pipes; the plurality of fuel shunt thin pipes are distributed along the circumference of the flame tube; the annular fuel jet slit is in communication with the fuel converging cavity, so that the airflow injected from the central air passage and the gasified fuel injected from the annular fuel jet slit are coaxially sheared and mixed. The above engine helps to meet the requirements of continuous detonation combustion on mixing uniformity, reaction induction time and combustion stability.

The application discloses a fuel pipeline and a nozzle thereof, and relates to the technical field of the nozzle.The nozzle body;the inside of the nozzle body is formed with a gas fuel cavity and an air cavity which are not communicated with each other; a plurality of gas fuel injection holes and a first opening are arranged on the nozzle body, the gas fuel injection holes are communicated with the gas fuel cavity; the first opening is communicated with the gas fuel cavity; air outlet holes are arranged on the nozzle body and correspond to the plurality of gas fuel injection holes one by one, and the air ejected from the air outlet holes is used for covering the corresponding gas fuel injection holes.The high-pressure air ejected from the air outlet holes can cover and block the gas fuel injection holes through the design of the air outlet holes.When the gas fuel injection holes are idle, the fuel in the combustion chamber cannot enter the gas fuel cavity or the gas fuel flow channel through the gas fuel injection holes.There is no need to design an auxiliary device or a complex control system for blowing and cleaning the gas fuel flow channel.

Method for preventing a vehicle engine from stalling, comprising a fuel injection device (2) for pressurizing fuel stored in a fuel tank (20) by means of a high-pressure fuel pump (50) to supply the fuel to a common fuel line (2c) and injecting the fuel temporarily stored in the common fuel line (2c) into an engine via an injection valve (2e, 70), comprising the following steps: determining whether a predetermined time has elapsed after starting the engine when it is determined that the vehicle is idling; performing fuel pressure control when it is determined that the predetermined time has elapsed after starting the engine; determining whether or not drift occurs in an output signal of a high-pressure fuel pressure sensor (61) for measuring the fuel pressure on the downstream side of the high-pressure fuel pump (50);and performing fuel pressure control by replacing a high-pressure fuel pressure value with a predetermined pressure value based on the output signal of the high-pressure fuel pressure sensor (61).;

The invention provides a method for acquiring fuel temperature participating in fuel flow calculation and a test device.The method is used for acquiring the fuel temperature participating in fuel flow calculation in the flight state and comprises the steps that S1, a fuel flow meter is arranged on a flow meter standard table, and the fuel flow meter is provided with a temperature measuring point sensor; a fuel oil pipeline central temperature measuring point sensor is arranged on the flowmeter standard table, and a wall surface temperature measuring point sensor is arranged on the outer wall surface of the fuel oil flowmeter; s2, carrying out a fuel oil temperature test, and collecting temperature data of each measuring point sensor; s3, data processing is conducted on the collected temperature data, and a mathematical relation between the temperature data of the temperature measuring point sensors of the fuel oil flow meter and the temperature data of the other temperature measuring point sensors is formed; and S4, verifying the formed mathematical relationship. According to the method, the relation between the fuel oil temperature measured by the fuel oil flow meter and the temperatures of the other measuring points is established and used for correcting the temperature measurement error of the fuel oil flow meter.

The method for performing a hydrogen fueling simulation comprises obtaining information on at least one of a capacity of a largest hydrogen tank equipped for hydrogen fueling in a real-case scenario, a total capacity of hydrogen tanks, a supply fuel temperature of a fueling line, a supply fuel pressure, and a pressure of a hydrogen tank; extracting, from a predefined lookup table, a first pressure loss coefficient corresponding to a fueling line pressure loss coefficient that satisfies a predetermined condition in a reference case and a second pressure loss coefficient corresponding to a pressure loss coefficient for SAE test configuration in H2Fills, based on the obtained information; calculating an average density in the fueling line; calculating a third pressure loss coefficient based on the average density, a measured mass flow rate, and a pressure difference between a fuel supply pressure and a hydrogen tank pressure in the fueling line.

To provide a liquefied gas fuel tank facility capable of efficiently discharging liquefied gas from a liquefied gas fuel tank by improving fluidity of fuel in the liquefied gas fuel tank.SOLUTION: The liquefied gas fuel tank facility 50 includes the liquefied gas fuel tank 1 that stores fuel including the fuel gas G and the liquefied fuel gas LG, the heat exchanger 2 that is located below the liquefied gas fuel tank 1 and heats the fuel, and the circulation line 3 including the low-temperature side fuel line 31 that connects the liquefied gas fuel tank 1 and the heat exchanger 2 and through which the fuel flowing out of the liquefied gas fuel tank 1 and flowing into the heat exchanger 2 flows, and the high-temperature side fuel line 32 that connects the heat exchanger 2 and the liquefied gas fuel tank 1 and through which the fuel flowing out of the heat exchanger 2 and flowing into the liquefied gas fuel tank 1 flows.SELECTED DRAWING: Figure 2

The invention discloses a leak detection system for a fuel line transporting fuel, the fuel line comprising an inner conduit and an outer conduit, the outer conduit enclosing the inner conduit and defining an interstitial space around the inner conduit, wherein the interstitial space is configured to detect a leak from the inner conduit, and further comprising: a pressure sensor operatively connected to the interstitial space for monitoring pressure variations within the interstitial space, characterized by the interstitial space being filled with an incompressible liquid, such that a leak from the inner conduit into the interstitial space causes a pressure change in the incompressible liquid, detectable by the pressure sensor.

Method for operating a fuel cell system (100), particularly during a cold start, wherein the fuel cell system (100) comprises at least one fuel cell stack (101), an air path (10), a fuel line (20), and a recirculation line (50), the recirculation line (50) being connected to the air path (10) via a purge line (40) with a purge valve (41). The following steps are performed during a start-up of the fuel cell system to heat the fuel cell system: 1.) Raising the pressure of a fuel in the recirculation line (50); 2.) Conveying air via the air path (10); 3.) Opening the purge valve (41).

This invention discloses a fuel atomization system suitable for the combustion chamber of a regenerative micro gas turbine, comprising: a T-shaped evaporator, a swirling oil-gas duct, a coaxial atomizing nozzle, an air intake pipe, and a fuel line protection sleeve; the T-shaped evaporator, the swirling oil-gas duct, and the coaxial atomizing nozzle are arranged coaxially, the air intake pipe is eccentrically connected to the side wall of the coaxial atomizing nozzle and can introduce high-pressure gas from the section before the regenerator after the compressor, the initially atomized mixed oil and gas enters the swirling oil-gas duct for further atomization and then evaporates and is ejected through the T-shaped evaporator, the fuel line protection sleeve is coaxially arranged on the outside of the swirling oil-gas duct and the coaxial atomizing nozzle and can avoid the direct impact of high-temperature backflow gas on the coaxial atomizing nozzle. This invention can significantly optimize fuel atomization quality, shorten the combustion chamber length, improve combustion efficiency, and improve the uniformity of combustion chamber outlet temperature distribution by adding a coaxial atomizing nozzle and an air intake pipe upstream of the traditional evaporator.

A thermal decomposition-type treatment system is provided with: a fluidized bed furnace (40) having a thermal decomposition furnace (1) for generating a thermal decomposition gas by thermally decomposing an object to be treated, and a medium regeneration furnace (44) for combusting a residue of the thermally decomposed object to be treated; a condensation device (7) that condenses an oil component and moisture in the thermally decomposed gas and recovers an oil-water mixture and a light gas, respectively; a gas separation device (15) for recovering the reducing gas from the light gas; a reducing gas transfer line (17) for transferring the reducing gas recovered by the gas separation device (15) to the thermal decomposition furnace; and a fuel line (21) for transferring the light gas from which the reducing gas has been separated to the medium regeneration furnace (44).

The invention relates to a fuel cell system (100) having at least one fuel cell stack (101), an air path (10), an exhaust gas path (12) and a fuel line (20), wherein air from the environment reaches the fuel cell stack (101) via the air path (10), wherein fuel is fed to the fuel cell stack (101) via the fuel line (20). The air path (10) is connected to a cooling line (30) via a branch (33), wherein the cooling line (30) is connected to a PDU unit (32).

The application provides a kind of unmanned aerial vehicle and its fuel system, the unmanned aerial vehicle fuel system includes fuel tank and fuel tank, wherein fuel tank 100 includes fuel tank oil port 101, fuel tank oil filler cap 102, fuel tank breather plug 103, fuel tank handle 104, fuel tank communication interface 105, fuel tank oil supply interface 106, fuel tank breather pipe 107, fuel tank mounting hole 108, fuel tank breather hole 109;Fuel tank 200 is used to place fuel tank, fuel tank 200 includes ultrasonic oil level measuring sensor 203, fuel tank 100 fixed quick-release bolt 204 and engine fuel line 205.

This utility model relates to the field of fuel pipe processing, and more particularly to a stamping and forming device for high-strength aluminum alloy fuel pipes. It includes a base plate, a fixed frame, an electric push rod, an upper clamp, a lower clamp, and a fixed plate. The fixed frame is connected to the rear right side of the base plate, and the electric push rod is connected to the upper part of the fixed frame. The electric push rod and the processor are electrically connected via a control module. The upper clamp is connected to the telescopic end of the electric push rod, the lower clamp is connected to the upper right side of the base plate, and the fixed plate is connected to the upper left side of the base plate. This utility model uses a sliding table to move the expanding head, which in turn moves the extrusion rod to extrude and compress the sliding frame, causing lubricating oil to flow out and lubricate the expanding head. The expanding head continues to move, stamping and expanding the fuel pipe. This allows the sliding frame to expel lubricating oil while simultaneously moving the expanding head to stamp and expand the fuel pipe, reducing friction and wear, extending service life, preventing fuel pipe damage, and improving processing quality.

The fuel oil pipeline for measuring the fuel oil flow of the engine for the aircraft flight test comprises a pipeline inlet; the pipeline outlet is positioned at the downstream of the pipeline inlet along the pipeline extending direction; the bending part divides the fuel oil pipeline into a first pipeline part and a second pipeline part on the upstream and the downstream in the pipeline extending direction; the first flow meter is arranged on the first pipeline part so as to sense the flow of fuel oil flowing through the first pipeline part; the first flow meter is arranged on the first pipeline part, the second flow meter is arranged on the second pipeline part and used for sensing the flow of fuel oil flowing through the second pipeline part, and the first flow meter and the second flow meter have different flow sensing characteristics. A temperature and / or pressure sensor used for correcting the fuel oil density and viscosity can be selected, so that the fuel oil flow is corrected. According to the fuel oil pipeline disclosed by the utility model, a high-precision fuel oil flow measurement value of the engine can be obtained in an irregular narrow annular space under the condition of a large flow range from an engine starting state to a maximum power state, so that high-precision and wide-range fuel oil flow measurement is realized.

According to the present invention, a pressure wave generation device, configured to generate a pressure wave by discharging a high-pressure gas generated in a high-pressure chamber from an outlet to the outside, includes a high-pressure gas container that defines the high-pressure chamber and has the discharge port for discharging the high-pressure gas along a first direction, a piston for opening or closing off a connection channel connecting the discharge port and an outlet, the piston extending along a second direction intersecting the first direction and having formed therein a through hole that passes through in the first direction, a piston housing container that houses the piston so as to be capable of reciprocating in the second direction, a gas fuel supply device that supplies a gas fuel to the high-pressure chamber, and an oxygen supply device that supplies oxygen gas to the high-pressure chamber. The gas fuel supply device includes a gas fuel tank in which the gas fuel is stored, a gas fuel line through which the gas fuel tank and the high-pressure gas container communicate, a gas fuel adjustment valve that is provided on the gas fuel line and that is capable of adjusting gas fuel pressure of the gas fuel flowing through the gas fuel line, and a gas fuel pressure measurement device that is provided on the gas fuel line closer to the high-pressure gas container than the gas fuel adjustment valve, and that measures the gas fuel pressure. The oxygen supply device includes an oxygen gas tank in which oxygen gas is stored, an oxygen line through which the oxygen gas tank and the high-pressure gas container communicate, an oxygen gas adjustment valve that is provided on the oxygen line and that is capable of adjusting oxygen gas pressure of the oxygen gas flowing through the oxygen line, and an oxygen gas pressure measurement device that is provided on the oxygen line closer to the high-pressure gas container than the oxygen gas adjustment valve, and that meas

The invention provides a prime motor cabin cover integrated heat exchanger and a hybrid power engine thereof.The prime motor cabin cover integrated heat exchanger comprises a cabin cover, a plurality of fuel oil pipelines and a plurality of rows of fins, and the fuel oil pipelines are arranged in at least one part of area of the cabin cover in the circumferential direction; the fins are installed on the outer side of the cabin cover in the axial direction. Fuel oil is distributed to enter the fuel oil pipelines, is cooled by the fins and flows out of the fuel oil pipelines. The heat exchanger is combined with the prime motor cabin cover of the hybrid power engine, air flow behind the open type fan can be used for cooling fuel oil, and the temperature of the fuel oil is effectively reduced. The fins on the surface of the cabin cover can effectively improve the heat exchange efficiency. Due to the integrated design of the heat exchanger and the cabin cover, the space of an inner shell of the cabin cover is ingeniously utilized, and more installation space is provided for other accessories.

This invention provides a method for calculating the bulk modulus of elasticity of an ultra-high pressure common rail system. The method includes: constructing an ultra-high pressure common rail system test system; selecting measuring points X and Y; recording the pressure signal curves of measuring points X and Y during injection under fixed camshaft speed, injector pulse width, and high-pressure fuel line length; calculating the ultra-high pressure wave propagation velocity u = L / t under each operating condition; calculating the pressure wave propagation velocity at different fuel pressures and temperatures; calculating the fuel density corresponding to the pressure wave propagation velocity under the corresponding pressure and temperature conditions; obtaining the formula for calculating the bulk modulus of elasticity of the ultra-high pressure common rail system under different fuel pressure and temperature conditions; and verifying the calculation results. The method for calculating the bulk modulus of elasticity of an ultra-high pressure common rail system described in this invention can accurately calculate the bulk modulus of elasticity of the system under different fuel pressure and temperature conditions.