38 results about "Glow plug" patented technology

The utility model relates to an integrated structure of a glow plug and an oil injector sleeve of an internal combustion engine. The fuel injector sleeve comprises a containing cavity used for arranging a fuel injector and an end wall located on one side of the containing cavity, a center hole is formed in the end wall in a penetrating mode, and at least one through hole is distributed in the end wall along the periphery of the center hole. The mounting sleeve is mounted in the accommodating cavity, and the mounting sleeve comprises an accommodating hole corresponding to the through hole; and the heating body comprises a mounting end and a heating end, the mounting end extends into and is connected with the accommodating hole, and the heating end extends out of the through hole. Due to the integrated design of the glow plug and the fuel injector sleeve, the overall size is effectively reduced, the occupied space is smaller, and the compact layout of the internal combustion engine is facilitated.

The invention discloses a zero-low-carbon fuel combustion device based on catalytic heat surface combustion supporting and a control method thereof, and relates to the technical field of aviation power equipment.The zero-low-carbon fuel combustion device based on catalytic heat surface combustion supporting comprises a glow plug suitable for being installed on the wall face of a combustion chamber of an engine and stretching into the combustion chamber of the engine; the protective cover is arranged on the radial outer side of the glow plug, a cavity is formed between the inner circumferential surface of the protective cover and the outer circumferential surface of the glow plug, catalyst layers are arranged on the inner circumferential surface of the protective cover and the outer circumferential surface of the glow plug, a first opening communicated with the cavity is formed in the protective cover, and the first opening comprises a plurality of sub through holes formed at intervals; a second opening is formed between the protective cover and the glow plug; and the injector is suitable for injecting fuel into the first opening. The zero-low-carbon fuel combustion device based on catalytic heat surface combustion supporting has the advantages of being capable of achieving the zero-low-carbon target conveniently, good in ignition performance, high in flame propagation performance, long in service life and the like.

The application discloses a compression ignition type methanol engine and a control system thereof, and relates to the technical field of engine control, which comprises a methanol engine and a methanol tank, further comprises a methanol water boiler, and is provided with an electric heating plug at a cylinder of the methanol engine; the methanol tank is connected with the methanol water boiler, a first methanol pump and a second methanol pump through connecting pipelines respectively; control valves one, two and three are arranged on the connecting pipelines respectively; the control system of the compression ignition type methanol engine comprises a cold start and warm-up working condition identification module, an acceleration working condition identification module, a load working condition identification module and an engine control module; the high-efficiency and reasonable heat management system and the air intake passage / in-cylinder double-methanol injection supply technology are adopted, the methanol engine can be operated efficiently in all working conditions, the efficiency and the power of the methanol engine can be improved simultaneously, and the effect of the high-efficiency and high-power compression ignition type methanol engine is realized.

A system for reducing internal combustion engine emissions includes an engine, a catalytic converter fluidly connected to a combustion chamber via an exhaust line, a glow plug positioned along the exhaust line between the catalytic converter and the combustion chamber, and a flame accelerator, without a fluid connection to a separate fuel supply. Methods of using the system include igniting a mixture of air and fuel in the exhaust line using the glow plug, producing an amount of heated combustion gas.

This invention provides a glow plug ignition internal combustion continuous supercritical water oxidation device, comprising three parts: an ignition zone, a reaction zone, and a separation zone. The device utilizes the heat from the glow plug to ignite fuel in the inclined reaction tube, rapidly raising the temperature in the reaction zone to the required level, achieving rapid preheating and efficient degradation of organic wastewater. Furthermore, the fuel does not require a preheater during the entire heating process, reducing equipment investment and energy consumption. The lower end of the separation straight tube is equipped with a first electric ball valve, a salt discharge pipe, and a second electric ball valve. By adjusting the opening and closing of the first and second electric ball valves, automatic salt discharge can be achieved, preventing the generation of saline wastewater and facilitating continuous reactor operation and zero discharge, thus meeting the needs of industrial-scale treatment.

The invention provides a minimum intake preheating power design method for an on-way heat dissipation flame glow plug diesel engine, which comprises the following steps of: firstly, constructing a diesel engine intake energy conservation equation set considering on-way heat dissipation of an intake pipeline; then, a triple data set composed of the atmospheric environment temperature, the air inlet pressure value and the corresponding minimum air inlet preheating power is obtained according to the diesel engine air inlet energy conservation equation set, and finally, a first Map graph of the minimum air inlet preheating power changing along with the diesel engine rotating speed and the atmospheric environment temperature is obtained according to the triple data set; according to the second Map, the minimum air inlet preheating power changes along with the rotating speed of the diesel engine and the altitude; therefore, the on-way heat dissipation loss of the intake manifold and the intake duct is considered, so that the intake preheating power of the diesel engine can be autonomously regulated and controlled along with the change of the environment temperature, and the cold starting performance of the diesel engine can be improved.

The invention relates to the field of engines, and discloses a compression ignition type alcohol ammonia engine which comprises a temperature-controllable glow plug, a first ejector and a second ejector, and the first ejector can eject methanol into a combustion chamber; the second injector can inject ammonia fuel into the combustion chamber; methanol sprayed into the combustion chamber combusts under the action of the temperature-controllable glow plug to ignite ammonia sprayed into the combustion chamber so as to push the piston to move, the piston drives the crankshaft to rotate through the connecting rod, and the crankshaft drives the output element to move so as to achieve power output. Methanol is used as an ignition fuel, then methanol combustion heat is used for igniting an ammonia fuel, the ammonia fuel is used as a main fuel, compression ignition of the ammonia fuel is achieved, only nitrogen and water are generated during combustion of the ammonia fuel, and the carbon emission of methanol combustion is far lower than that of high-carbon fuel diesel combustion. Methanol is adopted as ignition fuel, ignition reliability is high, and the problem of ammonia escape is avoided. The invention further provides an operation method of the compression ignition type alcohol ammonia engine.

System (100) for heating a catalyst (20) of a vehicle, comprising a chamber (110) that can receive an airflow via a chamber inlet port (112), a glow plug (120) housed in the chamber (110) and configured to heat the airflow received in the chamber (110), and an electric compressor (130) located downstream of the chamber (110) and having a compressor inlet port (132) fluidly coupled to a chamber outlet port (114) for receiving the airflow from the chamber (110). The electric compressor (130) is configured to compress the airflow received from the chamber (110) to increase the temperature of the airflow and to supply a compressed airflow to the catalyst (20) via an outlet port (134) of the compressor in order to achieve a cut-off temperature of the catalyst (20).The preheating of the catalyst (20) takes place before the engine (10) is started, thereby reducing emissions under cold conditions.

The utility model discloses a vehicle metal glow plug convenient to disassemble and assemble, which relates to the related technical field of glow plugs, and comprises a glow plug main body, and a heat conductor is arranged in the glow plug main body; the clamping assembly is arranged in the glow plug main body and is used for multi-point positioning of the heat conductor; and an annular groove is formed in the outer wall of the glow plug body, and the rotating assembly is arranged in the annular groove and used for limiting displacement of the clamping assembly. The arrangement mode that the clamping assembly and the rotating assembly are matched is utilized, the clamping assembly can be controlled to clamp, fix or disassemble and replace the heat conductor through rotation of the rotating ring in the rotating assembly, the damaged heat conductor can be conveniently replaced without using any tool, the maintenance time is greatly saved, and the working efficiency is improved. The usability of the equipment is improved, and other parts can be normally used, so that the durable effect is achieved, and the use is convenient.

This control device comprises: an acquisition unit that acquires information indicating the terminal voltage of a battery for starting an engine; a pre-glow period calculation unit that calculates, on the basis of the terminal voltage, a pre-glow period which is the period from when the operation of a glow plug for heating a combustion chamber of the engine begins to when the driving of a starter of the engine begins; a glow plug control unit that turns on the glow plug at the beginning of the pre-glow period and turns off the glow plug when the engine is successfully started; and a prohibition period setting unit that sets a prohibition period, during which the glow plug is prohibited from turning on, after the glow plug is turned off. The glow plug control unit does not turn on the glow plug during the prohibition period.

A precombustion chamber igniter with a retractable electric glow plug and a cold start control method for a methanol engine are provided. The precombustion chamber igniter includes a fuel injector, a spark plug, and an electric glow plug. The electric glow plug is retractable and has two working positions, at a first position, a heating segment is wholly located in an injection chamber to provide heat energy for the injection chamber, and at a second position, the heating segment is partially located in the injection chamber and passes through a first through hole, and the rest of the heating segment is located in a main combustion chamber of an engine, to provide heat energy for the injection chamber and the main combustion chamber. In a cold start stage of the engine, the heating segment of the electric glow plug is controlled to be located at the second position.

Device for preventing icing of a compressed air preparation system, comprising an electrically operated, self-regulating heating element arranged in the airflow at the inlet of the compressed air preparation system, wherein the heating element automatically adjusts its heating power depending on temperature and airflow, so that the incoming compressed air is heated in such a way as to prevent condensation and icing.

The present invention discloses an engine burner, comprising a control unit, multiple cylinders, multiple methanol injectors, multiple glow plugs, an intake pipe, an exhaust pipe, an exhaust gas recirculation passage, and an intercooler passage. The exhaust gas recirculation passage includes a first passage and a second passage, the first passage being used to cool the exhaust gas; the intercooler passage includes a third passage and a fourth passage, the third passage being used to cool the outside air. Based on the engine's operating conditions, the control unit controls the opening and closing of the first, second, third, and fourth passages, as well as whether the first and third passages cool the air and exhaust gas, to adjust the flow to the intake pipe temperature. The formaldehyde injector is used to inject formaldehyde, forming a mixed gas with the air and exhaust gas. The piston in the cylinder compresses the mixed gas in a controlled manner, causing the mixed gas temperature to reach a preset combustion temperature, thereby achieving spontaneous combustion. The above structure ensures that the engine can start normally under different operating conditions.

Burner assembly (1) for a mobile fuel-operated heater, in particular for a vehicle, comprising: - an evaporator (20) arranged to evaporate a fuel supplied to it; - an evaporator holder (24) designed to receive the evaporator (20); - a peripheral wall (16) defining a combustion chamber (14) in which a gas mixture containing the vaporized fuel can be burned, the peripheral wall (16) defining a central axis (M); - a glow plug (10) with a shaft section (12) having a glow element, which is designed to convert a current flowing through it when a voltage is applied into heat for igniting the gas mixture; - a first opening (15) formed in the peripheral wall (16) of the combustion chamber (14) and through which the shaft portion (12) of the glow plug (10) extends substantially radially into the combustion chamber (14); characterized by - a mounting arrangement (44, 45, 46, 17, 8) for the glow plug (10), which is designed to allow pivotability of the shaft section (12) of the glow plug (10) within the combustion chamber (14) in a direction (R) along the center axis (M) away from the evaporator (20).

The invention discloses a diesel engine rapid cold start electric glow plug design method and system. The method comprises the steps that electric glow plug design parameters are selected; obtaining electric glow plug performance parameters according to the electric glow plug design parameters; and carrying out multi-objective optimization on performance parameters of the electric glow plug by adopting a non-dominated sorting genetic algorithm to obtain a design scheme that the total heating time consumption of the electric glow plug and the space volume occupied by the electric glow plug are optimal when the ignition point in the cylinder is reached and the constraint conditions are met. By the adoption of the technical scheme, optimization of the electric glow plug for rapid cold start of the diesel engine is achieved, the number of tests is greatly reduced, and the design efficiency and benefits of the electric glow plug are improved.

The present invention discloses a convex porous medium evaporative burner and a method for using the same. After the glow plug reaches a burning state, the fuel in the liquid fuel guide pipe is supplied to the fuel evaporation circuit, the fuel is absorbed by the oil-absorbing porous medium, and the fuel on the surface of the oil-absorbing porous medium evaporates; after passing through the air guide channel, the air passes through the air inlet holes on the wall of the inner cylinder of the combustion chamber to form a jet air, which is blown toward the oil-absorbing porous medium and fully mixed with the fuel; when the glow plug reaches the ignition point of the fuel, the mixed gas of the fuel and air is ignited, and the gas blown upward passes through the return air baffle, so that the wind in the flow dead zone flows back to the oil-absorbing porous medium, accelerates evaporation, and better mixes with the air, thereby overcoming the problems of insufficient combustion and reduced combustion efficiency in the prior art.

A method of starting a compression ignition engine is provided. The method comprises using a glow plug of the compression ignition engine to perform a warm up routine to preheat the compression ignition engine. During the warm up routine, a fuel rack actuator of the fuel rack is actuated which controls the quantity of fuel to be injected into the compression ignition engine such that the fuel rack is in a start-up fuel injection position by the end of the warm up routine. Following the end of the warm up routine, the compression ignition engine is cranked until the compression ignition engine starts, wherein the fuel rack actuator maintains the start-up fuel injection position of the fuel rack until the compression ignition engine has started.

The invention belongs to the technical field of engine equipment, and particularly relates to a fuel injection system, an engine and an engine cold start method. An electric heating plug is arranged on a mixing body in the fuel injection system, the heating end of the electric heating plug extends into a mixing cavity, and the electric heating plug can enable the temperature in the mixing cavity to rise so that fuel injected into the mixing cavity can be rapidly evaporated into fuel steam, atomization of the fuel and formation of the fuel steam under the low-temperature condition are promoted, and the fuel injection efficiency is improved. Fuel steam can be mixed with gas entering the mixing cavity to form mixed gas, the mixed gas passes through a crankcase of the engine body from the gas outlet and then enters an air cylinder of the engine body, ignition is conducted through a sparking plug in the engine body, and stable starting of the engine in a short time under the low-temperature environment is achieved. The problem that an engine is difficult to start under the low-temperature condition due to fuel which is not prone to volatilization, large in latent heat of vaporization and high in viscosity is effectively solved.

A method of starting a compression ignition engine is provided. The method comprises using a glow plug of the compression ignition engine to perform a warm up routine to preheat the compression ignition engine. During the warm up routine, a fuel rack actuator of the fuel rack is actuated which controls the quantity of fuel to be injected into the compression ignition engine such that the fuel rack is in a start-up fuel injection position by the end of the warm up routine. Following the end of the warm up routine, the compression ignition engine is cranked until the compression ignition engine starts, wherein the fuel rack actuator maintains the start-up fuel injection position of the fuel rack until the compression ignition engine has started.

The invention provides a cold starting method of a methanol engine, a cold starting system of the methanol engine and a vehicle. The cold starting method comprises the steps that the cooling liquid temperature of the cooling system is obtained; when the temperature of the cooling liquid is smaller than the preset temperature, the glow plug is controlled for heating; the preset temperature is a critical temperature threshold value for transition from cold start to hot start of the methanol engine; when the temperature of the surface of the heating section of the glow plug reaches a first target temperature, an injection opening of the pre-oil injector is controlled to inject methanol to the heating section, so that the methanol is vaporized on the surface of the heating section to form methanol steam, and the methanol steam enters the pre-combustion chamber through the flow guide channel; the first target temperature is greater than or equal to the boiling point of methanol and less than the spontaneous ignition point of methanol. And the cold starting performance can be improved.

The utility model discloses a kind of electric heat plug hole depth gauges, including gauge main body, the gauge head portion of gauge main body front end being arranged, the outer diameter of gauge head portion is less than the outer diameter of gauge main body, and step is formed between gauge head portion and gauge main body.Electric heat plug hole size is same, so direct electric heat plug hole depth gauge can inspect the electric heat plug hole depth of any cylinder cover.Gauge is directly inserted into electric heat plug hole, and it is eligible if coinciding smoothly, otherwise unqualified.The utility model can guarantee cylinder cover electric heat plug hole inspection efficiency and accuracy, and does not produce abrasion, guarantee production rhythm.

The utility model relates to the technical field of glow plug, especially a durable glow plug, it includes the glow plug body and with the heating pipe of glow plug body one end internal socket, the glow plug body is located the pin groove position place and is equipped with the mounting hole, the detachable installation of mounting block has in mounting hole, the one end inside of heating pipe in the glow plug body is equipped with the pin groove, the pin column is equipped with on the mounting block, the pin column can insert into the pin groove, the first sealing washer is equipped between mounting block and the inner wall of mounting hole, the outer periphery of heating pipe is equipped with the locating ring table, the second sealing washer is equipped between the locating ring table and the end part side surface of glow plug body, the utility model discloses the improvement to prior art, through the double sealing setting of first sealing washer and second sealing washer, effectively promoted the sealing of glow plug whole, reduced dust and water vapor to enter inside, prolonged the life.

The utility model discloses a glow plug convenient to insert, which comprises a glow plug body, the glow plug body comprises a connecting seat and a heating element arranged at the lower end of the connecting seat in a penetrating manner, and a connecting assembly is arranged at the upper end of the connecting seat; a plug unit is arranged at the end, away from the connecting base, of the connecting assembly. The glow plug is reasonable in structural design, the glow plug body comprises the connecting base, the heating piece, the connecting assembly and the plug unit, the connecting assembly achieves electric connection between the plug unit and the heating piece through the wire, and effective transmission of electric energy is ensured. And the plug unit adopts the design of the plug seat and the pins, so that the plug unit can be conveniently butted with an external power supply, the universality is high, and the contact and tightness of connection can be ensured. The protective sleeve at the upper end of the connecting seat can block dust and water vapor, prolong the service life of the connecting part and guarantee the working stability. The wire passing piece in threaded connection with the interior of the connecting base can fix and guide wires, avoid winding abrasion, improve circuit reliability and facilitate maintenance and replacement.

Glow tube (4) for a glow plug (2), wherein the glow tube (4) has at least one region (30) in which there is a gradual transition in at least two steps from a first material to a second material, wherein the first material and the second material have different electrical and / or thermal properties and the second material is a metal or a metal alloy.

This invention discloses a sensor with an integrated glow plug, relating to the field of sensor technology. It includes: a carrier, a circuit board, a first terminal, a glow plug assembly, a first housing, a strain gauge, and a connector. The circuit board and the strain gauge are disposed on the carrier, and the connector and the first housing are respectively disposed at both ends of the carrier. The glow plug assembly includes a heating resistor and a second terminal. The heating resistor is disposed within the first housing, and the second terminal is electrically connected to the heating resistor. Both the first terminal and the second terminal are disposed within the connector. This invention can be applied in the harsh environment of engine cylinders, providing pressure signals for precise engine control, and preheating the cylinder during engine startup.

The invention relates to the field of internal combustion engines and provides a pure ammonia internal combustion engine and a control method thereof. The pure ammonia internal combustion engine comprises a cylinder. A piston configured to reciprocate within the cylinder; the combustion chamber is defined by the air cylinder and the piston, and the combustion chamber is a spherical combustion chamber with a squeezing port; the composite ignition system comprises a spark plug, a glow plug and a control unit, and the control unit is configured to adopt at least one of spark plug ignition, glow plug ignition and jet flow ignition based on the operation working condition of the engine. The pure ammonia internal combustion engine can provide a flexible mixed gas forming mode, the stability of ammonia combustion is effectively improved, a solution is provided for solving the existing problems that ammonia ignition is difficult, the flame propagation speed is low, the unburned ammonia emission level is high and the like, and application of ammonia fuel in the field of internal combustion engines is assisted.

Embodiments described herein relate to combustion of low cetane fuels in compression ignition engine architectures. In some embodiments, a method of operating a compression ignition engine can include activating a first heating device. In some embodiments, the first heating device can include a first glow plug. After a first preheating period of between about 3 seconds and about 7 seconds, the method further includes activating a second heating device. In some embodiments, the second heating device can include a second glow plug. In some embodiments, the second glow plug can be located inside of a flame plug. After a second preheating period of between about 5 seconds and about 10 seconds, a volume of air is drawn into a combustion chamber via the intake flow path.

This invention discloses a zero-carbon or low-carbon fuel combustion device and its control method based on catalytic thermal surface combustion, relating to the field of aero-engine equipment technology. The zero-carbon or low-carbon fuel combustion device based on catalytic thermal surface combustion includes: a glow plug, adapted to be installed on the wall of the engine's combustion chamber and extending into the combustion chamber; a protective cover, located radially outside the glow plug, with a cavity formed between the inner circumferential surface of the protective cover and the outer circumferential surface of the glow plug; both the inner circumferential surface of the protective cover and the outer circumferential surface of the glow plug are provided with a catalyst layer; the protective cover has a first opening communicating with the cavity, the first opening including multiple spaced sub-through holes; a second opening formed between the protective cover and the glow plug; and an injector adapted to inject fuel into the first opening. The zero-carbon or low-carbon fuel combustion device based on catalytic thermal surface combustion according to this invention has advantages such as facilitating the achievement of zero-carbon or low-carbon goals, good ignition performance, strong flame propagation performance, and long service life.

The present application relates to pure methanol hot surface compression ignition engine glow plug arrangement structure, method and system. The present application includes ECU control unit, glow plug control unit, cylinder, cylinder head base, methanol injector; multiple valve seats; single or multiple glow plugs, installed on the cylinder head base and located in the area between the valve seat and the methanol injector, and symmetrically distributed around the methanol injector, the heating part of each glow plug extends into the combustion chamber; the ECU control unit can send control signals to the glow plug control unit according to the sensor signals; the glow plug control unit can determine the number of glow plugs turned on for heating in each cycle according to the sum of the methanol temperature and the intake air temperature, and determine the time of the glow plug turned on for heating according to the engine speed. The present application solves the problems of existing large bore methanol engine, such as difficult cold start and unstable combustion.

The embodiment of the invention provides a methanol fuel engine ignition control method and device, a vehicle and a storage medium, and relates to the technical field of engines. The ignition control method for the methanol fuel engine comprises the steps that the indoor temperature of an engine combustion chamber is obtained, and under the condition that the indoor temperature is smaller than a first preset temperature, a relay is controlled to apply a first preset voltage to a glow plug for a first preset duration; an air inlet device is controlled to introduce mixed gas formed by methanol and air into an engine combustion chamber, and a spark plug is controlled to ignite the mixed gas; and controlling the relay to apply a second preset voltage to the glow plug for a second preset duration. Before mixed gas is ignited, high voltage is applied to the glow plug for a short time so that the glow plug can be rapidly heated, and the suitable ignition temperature of the mixed gas can be met; and after ignition, low voltage is applied to the glow plug for a long time, so that the glow plug is kept at a stable temperature, the ignition success rate and the combustion efficiency of an engine are improved, and emission and oil consumption are reduced.