756results about "Combustion engines" patented technology

The invention discloses a thermal management system and a thermal management control method and system of a range-extended electric vehicle, and relates to the technical field of thermal management of the range-extended electric vehicle, and the method comprises the steps: obtaining the temperatures of a battery, a driving system, a range extender, an intercooler and a refrigerant, determining the working condition, and adjusting the circulation of a cooling liquid according to the working condition, enabling each loop to form a path and distribute flow, and switching a battery and a driving system loop when conditions are met; refrigerant circulation is adjusted under the refrigeration requirement, so that the battery heat exchanger, the external heat exchanger and the in-cabin evaporator are connected in series or in parallel; under the waste heat utilization condition, the connection mode between a range extender or a driving system loop and a battery or a warm air core body in a cabin is adjusted to introduce heat, and the system operates according to working conditions based on a path control flowing mode. By acquiring the multi-source temperature and determining the working condition, the path of the cooling liquid and the refrigerant is adjusted along with the working condition, the temperature control consistency and energy efficiency are improved, and battery fluctuation, overheating of the driving system and insufficient temperature control in the cabin are improved.

A turbocharger heat management structure relates to the technical field of internal combustion engine supercharging devices and comprises a radial flow turbine, a centrifugal compressor and a bearing system which are connected, and the heat management structure is arranged between the radial flow turbine and the bearing system. The heat management structure comprises a first heat insulation cover, a second heat insulation cover and a third heat insulation cover which are in a revolving body metal sheet shape and arranged at the turbine back disc, a first heat insulation cavity is formed between the first heat insulation cover and the second heat insulation cover, a second heat insulation cavity is formed between the second heat insulation cover and the third heat insulation cover, and a third heat insulation cavity is formed between the third heat insulation cover and the annular cooling groove. The first heat insulation cavity communicates with a gap in the turbine back disc, and the third heat insulation cavity is connected with a cold air hole. The third heat insulation cavity, the second heat insulation cavity and the first heat insulation cavity are sequentially communicated through an air guide structure. On the premise that the weight and the size are not greatly increased, the heat insulation efficiency is greatly improved, and the purpose of actively and efficiently cooling a key area is achieved.

This application relates to the field of waste treatment technology, and more specifically, to a power generation device based on low-temperature magnetic pyrolysis of waste, comprising: at least one pyrolysis unit for thermally decomposing waste; a gas conveying pipeline for collecting and conveying the gas generated in each pyrolysis unit to a combustion chamber; a combustion chamber for combustion using combustible gas as a heat source; a direct-fired generator system disposed above the combustion chamber for using the high-temperature gas in the combustion chamber as a power source to drive the generator to rotate and generate electricity; and an oxygen-enriched gas supply device for supplying oxygen-enriched gas to the combustion chamber to ensure complete combustion of the combustible gas.

The present application relates to hydrogen internal combustion engine technical field, especially to a kind of water hydrogen electricity combined supply internal combustion engine, including by hydrogen internal combustion engine unit combustion hydrogen and air driven first power generation unit;Gas recovery unit by condensation drive module converts water vapor in exhaust gas into liquid water, while driving second power generation unit;Fuel supply unit is based on the multidimensional data obtained by monitoring unit detection, through the processing of data processing unit and confidence decision unit, the generated adjustment instruction adjusts hydrogen injection amount, and then inhibits the generation of nitrogen oxides.The present application combines the condensate water recovery of hydrogen internal combustion engine with the combustion control deeply, the actual humidity of exhaust gas is deduced by monitoring the condensate water flow, the error tolerance range of gas detection is dynamically corrected, and the safety limit control of hydrogen fuel supply is realized by the determination result of hydrogen-oxygen combustion ratio, to reduce the generation of nitrogen oxides of hydrogen internal combustion engine.

The present invention relates to a fluid flow control device for an internal combustion engine and, more specifically, comprises: a plurality of main blades having the inner ends thereof connected; and auxiliary blades, each obliquely extending rearward from the front end of a main blade (hereinafter, referred to as a first main blade) so as to be spaced farther apart from the first main blade toward the rear.

A piston (22) for an internal combustion engine (12) includes a piston skirt (64) and a piston crown (70) attached to the piston skirt and including a combustion face (72). The combustion face forms a piston rim (74) and a combustion bowl (78). A bowl rim (82) defines an intersection of the combustion bowl and the piston rim, and a reentry surface (84) defining a reentry angle extends between the bowl rim and the bowl outer wall. A ratio of a bowl depth dimension coincident with the piston central axis to a compressed height dimension coincident with the piston central axis is from about 0.30 to about 0.35.

The application relates to an IGCC system coupled with biomass and near-zero emission high-purity CO2 capture and a working method thereof, and belongs to the field of coal gasification combined cycle power generation coupled with biomass, in particular to an IGCC system coupled with biomass and near-zero emission high-purity CO2 capture and a working method thereof. The application is used for solving the problems that the existing IGCC system has low CO2 capture rate, high energy consumption, low power generation efficiency, and a large amount of nitrogen generated in the oxygen taking process and difficult to effectively utilize. The application comprises an air separation device, a gasification furnace, a sensible heat recovery device, a purification device, a gas power generation unit, a waste heat recovery unit, a steam power generation unit, a biomass fermentation device, a methane reforming unit, an adsorption separation unit and an ammonia synthesis tower. The application is based on the overall coal gasification combined cycle power generation system of post-combustion CO2 capture and oxygen-enriched combustion technology, introduces a biomass ammonia synthesis process, generates H2 and CO through biomass fermentation and reforming, utilizes N2, and improves the system efficiency.

A compressor system includes a compressor, a storage vessel, and a control valve. The compressor includes a cylinder having a first end and a second end opposing the first end, a piston slidably disposed within the cylinder, a compression chamber defined between the first end and the piston, and a driving chamber defined between the piston and the second end. The compression chamber receives a gas therein. The storage vessel is in fluid communication with the driving chamber and is configured to store the gas which leaks from the compression chamber to the driving chamber. The control valve is disposed in fluid communication with the storage vessel and the compression chamber and is configured to control a flow of the gas from the storage vessel to the compression chamber.

An inlet passage system includes a turbocharger for receiving exhaust gas and delivering compressed air to an internal combustion engine. The system also includes a blade assembly having a blade ring on which a plurality of blades are disposed. The blade assembly includes a plurality of spacers positioned adjacent a leading edge or trailing edge of a respective blade, and each spacer is separated from an adjacent spacer by at least one blade. A blade gap distance defined between any portion of an adjacent side of the first blade and a blade ring surface of the blade ring is greater than a blade gap distance defined between any portion of an adjacent side of the second blade and the blade ring surface of the blade ring in order to control a blade torque associated with the first blade generated during operation of the system.

There are provided systems and methods for using fuel rich partial oxidation to produce an end product from waste gases, such as flare gas. Lambda sensor modifications and other control parameters that provide closed-loop mixture control at extremely fuel-rich operating conditions utilizing feed-forward and feedback approaches, physics-based engine models, novel use of a lambda sensor (02-based sensor), sensors with intermittent contact with the gas stream. In an embodiment the system and method use air-breathing engines having control systems, control parameters, sensors and input / output (I / O) for the fuel rich (ER of 1.2 and greater), partial oxidation of the flare gas to form syngas. In embodiments the syngas is further converted into an end product. In an embodiment the end product is methanol.

The turbocharger comprises a turbine shaft (1), a turbine (2) is arranged at the output end of the turbine shaft (1), a middle body (3) is arranged on the side, close to the turbine shaft (1), of the turbine (2), the turbine shaft (1) is rotationally connected to the axis of the middle body (3), an air cooling air channel (3.1) is arranged at the end, close to the turbine (2), of the middle body (3), and the air cooling air channel (3.1) is communicated with the air cooling air channel (3.1). The air cooling air channel (3.1) is in a U shape and is arranged in the circumferential direction of the turbine shaft (1). The utility model provides a turbocharger with an air cooling intermediate, which is used for cooling the turbocharger in an air cooling manner so as to reduce the production cost of the turbocharger.

Method for controlling the internal combustion engine (4) of a motor vehicle during the operation of the motor vehicle, wherein the internal combustion engine (4) has at least two operating modes in which different torque ranges are provided, and the control has a switching function for switching the internal combustion engine between the at least two operating modes, comprising the steps: Performing route forecasting during operation to determine route data for upcoming track sections, Predicting the torque requirement for upcoming track sections based on track data, The switching function for changing the internal combustion engine from a first operating mode to at least the second operating mode for an upcoming section of track may only be activated if the track forecast for the upcoming section shows that the operating point of the internal combustion engine lies within a torque range for at least a predetermined period of time, which covers the torque requirement predicted for this section of track by at least the second operating mode. characterized by the fact that the operating modes are realized through different compression ratios of the internal combustion engine.

To realize a configuration capable of curbing an increase in a concentration of carbon monoxide contained in processed gas produced after exhaust gas produced when exhaust gas after combustion of thermal decomposition gas undergoes a process in a woody biomass gas combustion facility in which the thermal decomposition gas generated through thermal decomposition of woody biomass undergoes combustion.SOLUTION: A woody biomass gas combustion facility 1 comprises: a filter 23 which collects particles in thermal decomposition gas obtained from woody biomass; oxidation catalyst reaction device 16 which oxidizes carbon monoxide contained in exhaust gas produced when the thermal decomposition gas undergoes combustion with a gas engine 15; a particle removal mechanism 25 which performs particle removal operation; an oxidation gas supply device 40 which mixes the exhaust gas with oxidation gas; and a control device 30 which controls drive of the oxidation gas supply device 40 so as to mix the exhaust gas with the oxidation gas when the particle removal mechanism 25 performs the particle removal operation.SELECTED DRAWING: Figure 1

The application discloses an intelligent hydrogenation method and system for a generator, relates to the technical field of generator hydrogenation, and determines the working state of the generator at different time nodes according to the past power generation plan of the generator, constructs a generator working state curve and a generator hydrogen consumption curve, and generates an initial strategy reference model; according to the current power generation demand, the working state of the generator in a preset time section is determined, and a fixed-proportion hydrogenation control strategy is constructed; according to the working state and load condition of the generator set, the injection amount of hydrogen is dynamically adjusted, a plurality of variable-proportion hydrogenation control strategies are generated, the fixed-proportion hydrogenation control strategy and the variable-proportion hydrogenation control strategy are evaluated from the energy-saving property and adaptability, and the energy-saving property evaluation and adaptability evaluation of the fixed-proportion hydrogenation control strategy and the variable-proportion hydrogenation control strategy are comprehensively evaluated to determine the optimal hydrogenation control strategy, which is determined as the current hydrogenation control strategy.

An ignition system (10) including an injection member (20) configured to deliver fuel to an ignition zone (140) within a combustion chamber, an ignition element (40) configured to ignite fuel within the ignition zone, and a control unit (60) configured to operate the injection member and the ignition element in a first ignition phase including ignition of a first delivery of fuel provided to the combustion chamber by the injection member and a second ignition phase including ignition of a second delivery of fuel provided to the combustion chamber by the injection member.

A compressor having a housing along with a wheel including a hub and a plurality of impellers defining flow channels is disclosed. The hub forms a flow surface that defines a concave surface-curve from an inducer end to an inflection point, and a convex surface from the inflection point to an exducer end of the flow surface. The hub forms a back-disk surface including a circumferential edge-channel inset from and surrounding a central portion. The housing includes a conical inner-diffuser wall surrounding a circular inset wall. The central portion of the back-disk surface is received by the conical inner-diffuser wall, while the exducer end of the flow surface extends radially outward to be axially over an inner portion of the inner-diffuser wall.

This invention, entitled "Exhaust Gas Turbocharger for Internal Combustion Engines," relates to an exhaust gas turbocharger used in internal combustion engines. It primarily addresses the problems of current turbochargers, such as low impeller speeds, small exhaust volume, and exhaust gas flow limited to a predetermined path within the exhaust pipe. The turbocharger of this invention comprises two turbines connected by a shaft. An exhaust gas inlet is located on the exhaust turbine, and an air outlet is located on the intake turbine. Its key feature is that the impellers of the exhaust and intake turbines are centrifugal exhaust gas impellers and centrifugal air impellers, respectively. The exhaust gas discharge pipe connected to the intake is a circular pipe with the same inner diameter, and an exhaust gas baffle is installed between the outlet of the exhaust gas discharge pipe and the exhaust gas inlet. When the internal combustion engine operates at maximum power, the impeller speed is high, the exhaust gas inlet is equipped with an exhaust gas baffle, and the area of ​​the exhaust pipe is the same as the area of ​​the exhaust gas inlet, resulting in a larger exhaust gas discharge area and increased exhaust gas volume.

An exhaust valve includes a valve head and a valve stem extending from the valve head. The valve head includes a combustion face and a seat face. The combustion face and the seat face are on opposing sides of the valve head. The seat face is configured to matingly engage an opposing surface. The valve head is formed of a base material. A valve thermal management composition coats at least a portion of the seat face and comprises increased thermal conductivity relative to the base material of the valve head.

A turbine (T) is provided with: a turbine wheel; a plurality of nozzle blades that are disposed on the outside in the radial direction of the turbine wheel, are spaced apart in the circumferential direction of the turbine wheel, and are provided so as to be rotatable about a rotation axis along the axial direction of the turbine wheel; an annular member (drive ring (107)) that extends in the circumferential direction and is provided so as to be rotatable in conjunction with the plurality of nozzle vanes; and an engagement part (107c) which has a thickness greater than the thickness of the peripheral portion of the circular ring member, is provided on the circular ring member, and includes a pair of sliding surfaces (107d) facing each other in the circumferential direction, the engagement part (107c) being slidably engaged with a drive member (link plate (111)) rotationally driven by an actuator.

Title: Control Unit and Method for Determining Backfire in the Intake Manifold of a Hydrogen Engine. The control unit 118 determines backfire in the intake manifold 110 of the vehicle's hydrogen engine. The intake manifold includes the hydrogen injector 112 and a pressure sensor 114. The hydrogen engine includes the knock sensor 106. Gaseous hydrogen is injected through the hydrogen injector 112 and sent to the engine cylinder. The control unit 118 is configured to detect the first signal indicating a hydrogen flame in the intake manifold 110 via the flame sensor 116. The control unit 118 measures the second and third signals via the pressure sensor 114 and the knock sensor 106, respectively.Control unit 118 validates and determines the presence of backfire based on the correlation of the first signal with the second and third signals. After determining backfire, control unit 118 takes control measures that reduce its occurrence. Figure 1 for the summary.

The invention relates to an air-steam engine comprising one or more cylinders and a piston located therein, capable of reciprocating. The air-steam engine further includes an injection nozzle and a pre-chamber. The pre-chamber is arranged between the injection nozzle and the cylinder, and a fuel fluid can be introduced into the pre-chamber from the injection nozzle. Compressed air from the cylinder is drawn into the pre-chamber, forming an air-steam mixture within the pre-chamber, which can then be introduced into the cylinder. This enables the reciprocating movement of the cylinder. Furthermore, the cylinder is connected to a condenser via an exhaust valve, causing the air-steam mixture or the vapor from the air-steam mixture to condense and be present as condensate in the condenser.The condenser and the injector are connected via a high-pressure pump and a high-pressure tank, allowing the fuel fluid to flow from the condenser back to the injector via another high-pressure pump and tank. This closed-loop system in the air-steam engine results in efficient operation.

To provide a lubricating oil cleaning system that can more reliably separate lubricating oil and ammonia water from a stock solution containing ammonia water and lubricating oil. [Solution] The lubricating oil cleaning system 100 can purify raw DO contaminated with ammonia into lubricating oil LO. The lubricating oil cleaning system 100 comprises an engine 200, a lubricating oil cleaner 1 that separates raw DO containing lubricating oil LO used in the engine 200 into a light liquid which is purified lubricating oil LO and a heavy liquid which contains ammonia, a separator inlet line 130 for supplying raw DO to the lubricating oil cleaner 1, and an additive means 135 for adding water W to the raw DO in the separator inlet line 130.

A two-stroke engine (1) has a cylinder (2) in whose cylinder bore (22) a combustion chamber (3) is formed. The combustion chamber (3) is bounded by a reciprocating piston (5) which drives a crankshaft (8) rotatably mounted in a crankcase (6). A crankcase interior (7) is fluidically connected to the combustion chamber (3) via at least one transfer port (14, 15) in at least one position of the piston (5). The at least one transfer port (14, 15) opens into the crankcase interior (7) via a port opening (18) and at least one transfer window (16, 17) at the cylinder bore (22).It is provided that all transfer ports (14, 15) have a mean length (a1, a2) measured from the outlet opening (18) to the transfer window (16, 17), wherein the mean length (a1, a2) is at least 1.5 in relation to the stroke, and that the volume of the crankcase interior (7) including all transfer ports (16, 17) is at most 3.1 in relation to the displacement.

This invention relates to the field of engine technology and discloses a combustion chamber suitable for opposed piston engines, comprising a cylinder block, an intake piston, an exhaust piston, a fuel injector, and a spark plug. The intake and exhaust pistons are respectively disposed at both ends of the cylinder block and together with the inner wall of the cylinder block to form the combustion chamber. The fuel injector sprays fuel jets towards the intake and exhaust pistons, respectively, and the fuel jets sprayed towards the intake and exhaust pistons are asymmetrically distributed with reference to the central cross-section of the cylinder block. A first guide groove is formed on the end face of the intake piston facing the combustion chamber, and a first fragmentation part is arranged around the inner side of the first guide groove. Multiple second guide grooves are formed on the end face of the exhaust piston facing the combustion chamber, and a second fragmentation part is arranged in each second guide groove. This invention not only promotes the rapid fragmentation of the fuel jet and guides it to the center of the combustion chamber, but also promotes the diffusion and mixing of fuel and air, achieving rapid and stable combustion.

This internal combustion engine includes, in a cavity (CA), a bottom wall (510) that extends radially outward from a center axis (A) while gradually trending away from a cylinder head, a plurality of recess walls (520) that are in communication with the bottom wall (510) and are curved so as to protrude radially outward, and step sections (550) that are provided between the bottom wall (510) and the recess walls (520), wherein the step sections (550) are arc-shaped in planar view. As a result, a spray flame (B2) that flows along the bottom wall (510) flows along the step sections (550), and thus the spray flame (B2) is drawn away (the areas surrounded by dashed lines (VII) in the diagram) from the bottom wall (510) and moves toward the center of the cavity (CA), and mixing of a fuel and residual air is further promoted, making it possible to improve combustion efficiency.

A motor unit, particularly for operating machines, comprising an internal combustion engine provided with a cooling system that comprises a first heat exchanger fluidically connected to a cooling circuit obtained in said motor, and ventilation means adapted to generate an air flow through the first heat exchanger; the motor being further provided with a supercharging system that comprises a turbine mounted along an exhaust duct, a compressor mounted along a suction duct and a second heat exchanger placed along the suction duct, downstream of said compressor. The motor unit is characterized in that it comprises fluid conveying means adapted to make a flow of cooling air pass through the second heat exchanger, such flow being generated by the ventilation means.

The application provides a hydrogen-ammonia engine combustion and NO x The application relates to a control technology field of a combustion engine, and discloses a synergic control system and a control method, which comprise a controller and a fuel distribution subsystem, an ignition subsystem and an aftertreatment subsystem connected with the controller, wherein the ignition subsystem at least comprises a jet ignition device; the fuel distribution subsystem at least comprises an ammonia fuel storage device, a catalytic decomposer and a hydrogen purification device, the hydrogen purification device is connected with a first supply subsystem and a second supply subsystem, the first supply subsystem is connected with the jet ignition device, the second supply subsystem is connected with the aftertreatment subsystem; and the aftertreatment subsystem at least comprises a primary SCR device and a secondary SCR device connected with the primary SCR device. The application solves the problems that the proportion of hydrogen-ammonia mixed fuel and the combustion process cannot be effectively controlled in the prior art, the engine combustion efficiency is low, and nitrogen oxide emission does not meet the standard.