21 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 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.

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.

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.

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 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.

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.

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 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.

To provide a control device capable of properly controlling energization to a glow plug, a refrigerating device for transportation, and a control method.SOLUTION: The control device includes an acquisition unit which acquires information indicating a terminal voltage of a starting battery of the engine, a pre-glow period calculation unit which calculates a pre-glow period which is a time from an operation start of a glow plug which heats a combustion chamber of the engine to a drive start of a starter of the engine based on the terminal voltage, a glow plug control unit which turns on the glow plug at a start time of the pre-glow period and turns off the glow plug when starting of the engine is successful, and a prohibition period setting unit which sets a prohibition period which is a period in which turning on of the glow plug is prohibited after the glow plug is turned off.SELECTED DRAWING: Figure 1

The invention relates to the technical field of internal combustion engines, in particular to a jet-induced methanol spray combustion system optical diagnosis device and a test method thereof, and the methanol spray combustion system optical diagnosis device comprises a methanol supply unit, a constant volume bomb combustion unit, an optical diagnosis unit, a data acquisition and control unit and an air supply unit. Wherein the constant volume bomb combustion unit comprises a constant volume bomb, a second methanol ejector, a spark plug, a glow plug, a pre-combustion chamber, a first methanol ejector, an exhaust electromagnetic valve and a constant volume bomb heating unit. The optical diagnosis unit comprises a first digital high-speed camera, a second digital high-speed camera, a first band-pass filter, a second band-pass filter, a high-speed stroboscopic LED light source, a first window, a second window, a diffusion sheet, a convex lens and a spectroscope. Synchronous high-frequency acquisition of a liquid-phase spray image and a flame image of the pre-combustion chamber jet flow induced methanol spray diffusion combustion system is realized.

The present disclosure provides a compression ignition methanol engine, comprising a cylinder and a piston located inside the cylinder, a combustion chamber is defined between the cylinder and the top of the piston, the compression ignition methanol engine further comprises an air intake part, an oil injector and an electric heat plug. The air intake part is arranged on the top of the cylinder and communicates with the combustion chamber, and is suitable for guiding external air into the combustion chamber. The oil injector is arranged on the top of the cylinder and is suitable for injecting methanol fuel into the combustion chamber to form a mixture with air from the outside. The electric heat plug is installed on the top of the cylinder, and the electric heat plug has a heating end extending into the combustion chamber to heat the mixture, and the heating end is configured to generate displacement close to or away from the oil injector in response to at least one of engine speed, throttle pedal opening degree and intake air temperature.

The invention discloses a cooperative control method for a glow plug and a fuel injection quantity in a cylinder in a cold starting process of a diesel engine, which relates to the technical field of cold starting of diesel engines and comprises the following steps: firstly, judging a cold starting condition, and calculating the fuel injection quantity required by the glow plug according to a starting stage (an injection starting period / Ramp period); secondly, through iterative calculation, the final oil injection quantity of the glow plug and the air inlet oxygen content decline value caused by the final oil injection quantity are synchronously determined, and then the effective oxygen mass capable of being used for in-cylinder combustion is obtained; and finally, accurately calculating and executing the in-cylinder fuel injection quantity after collaborative correction according to the effective oxygen mass. According to the method, dynamic accurate matching of the preheating process and the oil injection process is achieved, the first-time starting success rate and the starting speed of the low-compression-ratio and high-supercharge-ratio diesel engine in the low-temperature environment are remarkably increased, and smoking and pollutant emission in the cold starting stage are effectively reduced.

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.