102 results about "Engine configuration" patented technology

An intelligent energy management system, includes: a drive device including an engine configured to output power to a wheel of the vehicle, a drive motor configured to output power to the wheel, and an electric generator connected to the engine and driven by the engine to generate electricity; a power battery configured to supply electricity to the drive motor and charged with an alternating current outputted from the electric generator or the drive motor; and a control device configured to acquire multi-domain data fusion information, predict, according to the multi-domain data fusion information, a route-specific vehicle energy consumption corresponding to a preset travel route, plan, according to a road section-specific vehicle energy consumption corresponding to each road section, a target SOC corresponding to each road section, and control, according to the target SOC and an actual vehicle demand corresponding to each road section, the drive device.

An aircraft includes a gas turbine engine and an optically-based contrail control system. The gas turbine engine is configured to ingest a first mass flow and to exhaust a second mass flow. The optically-based contrail control system is configured to determine an amount of scattered energy contained in the second mass flow and to determine flow characteristics of the second mass flow based at least in part on molecular components contained in the second mass flow. The optically-based contrail control system determines a level of emissions exhausted from the gas turbine engine based at least in part on a combination of the amount of scattered energy and the flow characteristics.

The invention provides an engine configuration method which can be applied to the technical field of big data. The engine configuration method comprises the following steps: constructing a risk model in a risk assessment engine based on business information related to risk assessment and a rule engine integrated with different decision tools; according to service logic in the service information, integrating a plurality of index items defined in the risk model and calculation rules of the index items in the decision tool to generate a decision flow corresponding to the risk model, the decision flow comprising a plurality of decision nodes, and the decision nodes comprising a plurality of decision nodes; each decision node is correspondingly provided with an evaluation strategy determined according to the index item and the calculation rule; and configuring the decision flow into a risk assessment engine so as to perform risk assessment by using the configured risk assessment engine. The invention further provides a risk assessment method, an engine configuration device, equipment, a storage medium and a program product.

The invention discloses an engine configuration using liquid hydrogen as a coolant and fuel and an overall design method, and relates to the field of aero-engines, and the engine configuration comprises an air inlet channel, a fan, a precooler, an air compressor, a main combustion chamber, a high-pressure turbine, a low-pressure turbine, a mixing chamber, an afterburner and an exhaust nozzle. Only the inner culvert airflow is cooled, on the basis of solving the difficulty of rotation limitation under the high Mach number working condition of the core engine, the problem of cooling capacity waste generated by precooling the outer culvert airflow is avoided, and the liquid hydrogen amount depends on the combustion amount needed by the main combustion chamber and the afterburner; therefore, the waste problem caused by the fact that the amount of liquid hydrogen needed by pre-cooling is larger than the amount of liquid hydrogen needed by combustion is avoided. According to the overall design of the engine, from the angle of flight / intake / launch integration, the size and performance parameters of an engine body are determined in a ground state based on the take-off task requirement of an aircraft, the size of an intake and exhaust system is determined in a cruise state based on the cruise task requirement of the aircraft, and a control rule is determined by the engine demand flow and the intake passage capture flow.

A vessel for transporting cargo by water comprises one or more propulsion devices with at least one air-breathing engine from the one or more propulsion devices disposed entirely above a surface of the water in a high-speed mode of operation. The least one air-breathing engine is configured to bleed airflow into a fluid circuit. The fluid circuit routes the bleed airflow to one or more fluid outlets disposed entirely below the surface of the water in the high-speed mode of operation. At least some of the one or more fluid outlets release the bleed airflow in the high-speed mode of operation generate a boundary layer along at least a portion of a hull of the vessel to reduce a skin friction drag thereof.

The invention belongs to the field of turbine engines, and provides a thermodynamic cycle parameter obtaining method and system for a low-cost configuration turbine engine, and the method comprises the steps: determining an engine configuration through a cost design target of the turbine engine; according to the engine configuration, a thermodynamic cycle parameter feasible region is obtained with overall performance indexes and a fan inlet size threshold value as constraints, and the overall performance indexes comprise a thrust index and an oil consumption rate index; thermodynamic cycle parameters are determined in the feasible region of the thermodynamic cycle parameters through turbine engine performance requirements and turbine engine air inlet distortion resistance. According to the method, the thermodynamic cycle parameters can be rapidly obtained without repeated iteration, and the design period is greatly shortened.

The invention discloses a general order state machine and system based on multiple categories of an SAAS platform. The invention relates to the technical field of SAAS platforms. Loading a state machine engine configuration file, and initializing a state machine engine environment; scanning and registering a processor, and constructing a processor mapping table according to dimensions of multiple states, multiple channels and multiple events; after a new order state circulation request is received, related information is acquired from the context according to the order ID and the current state in the request. Reading and analyzing a configuration file of the state machine engine, wherein the configuration file comprises an initialization parameter, a state definition, an event definition and a state conversion rule of the state machine engine; according to parameters in the configuration file; according to the invention, through clearly defined states and conversion rules, the whole flow of designated driving service becomes more standard and controllable, and the possibility of human intervention and misoperation is reduced. The automatic execution of the state machine engine enables the order state to quickly and accurately respond to various events and conditions.

In one embodiment, a system includes prefetcher engines to predict next memory access addresses of a memory from which to load data to a cache during execution of a software application, and load the data from the predicted next memory access addresses to the cache during execution of the software application, and a processor to control the prefetcher engines according to configurations of the prefetcher engines selected by a machine learning agent in exploration phases and in exploitation phases during execution of the software application, and execute the machine learning agent to select from a pruned set of configurations to control the prefetcher engines in the exploration phases, perform measurements on the system during execution of the machine learning agent, and execute the machine learning agent to select from the configurations to maximize potential rewards from controlling the prefetcher engines in the exploitation phases based on the performed measurements.

A vessel for transporting cargo by water comprises one or more propulsion devices with at least one air-breathing engine from the one or more propulsion devices disposed entirely above a surface of the water in a high-speed mode of operation. The least one air-breathing engine is configured to bleed airflow into a fluid circuit. The fluid circuit routes the bleed airflow to one or more fluid outlets disposed entirely below the surface of the water in the high-speed mode of operation. At least some of the one or more fluid outlets release the bleed airflow in the high-speed mode of operation generate a boundary layer along at least a portion of a hull of the vessel to reduce a skin friction drag thereof.

The present invention discloses an exhaust gas treatment device and method for an ammonia-diesel engine. The exhaust gas treatment device includes an SCR-ASC front assembly, a DOC, a DPF, and an SCR-ASC rear assembly arranged in sequence. In both the SCR-ASC front assembly and the SCR-ASC rear assembly, the SCR is arranged in front of the ASC; an electric heating device is arranged in front of the SCR in the SCR-ASC front assembly, and an ammonia nozzle is arranged in front of the SCR in the SCR-ASC rear assembly. The ammonia nozzle is connected to a liquid ammonia tank, and the liquid ammonia tank is the ammonia source configured for the ammonia-diesel engine. In the present invention, the ammonia source of the SCR borrows the NH3 used for engine combustion, eliminating the urea injection system and completely solving the problem of urea crystallization; the present invention also arranges the SCR-ASC front assembly in front of the DOC, enabling the unburned NH3 to be completely consumed in the SCR and ASC in the ammonia-diesel mode, and solving the problem of N2O generated by the high-concentration NH3 passing through the DOC.

A method for controlling a turbocharged hydrogen engine for burning an air-hydrogen mixture having an air-hydrogen ratio λ greater than 1. The hydrogen engine is configured to assume steady operating states and transient operating states, wherein ignition timings are more retarded in the transient operating states than in the steady operating states.

A method of controlling a dual fuel engine configured to receive a first fuel and a second fuel includes operating the engine using the first fuel, measuring a current load of the engine, sending a first signal to a first fuel system to deliver an amount of the first fuel to the engine, and determining at least one first operating parameter associated with the engine. The method also includes determining an engine load estimate based on the first signal and the at least one first operating parameter, comparing the engine load estimate to the measured load, and based on the comparison, determining, an adjusted engine load estimate to compensate for a drift in the first fuel system.

A gas turbine engine for an aircraft is disclosed. The gas turbine engine comprises: a combustor, comprising a combustion chamber and a plurality of fuel spray nozzles configured to inject fuel into the combustion chamber, wherein the plurality of fuel spray nozzles comprises a first subset of fuel spray nozzles and a second subset of fuel spray nozzles, wherein the combustor is operable in a condition in which each of the fuel spray nozzles of the first subset of fuel spray nozzles is supplied with fuel at a greater fuel flow rate than each of the fuel spray nozzles of the second subset of fuel spray nozzles, wherein a ratio of the number of fuel spray nozzles in the first subset of fuel spray nozzles to the number of fuel spray nozzles in the second subset of fuel spray nozzles is in the range of 1:3 to 1:6. A MTO nvPM emissions index ratio is defined as:EImaxTO,SAFEImaxTO,FFwhere: EImaxTO,SAF is the nvPM emissions index in mg / kg of the gas turbine engine when operating at around 100% available thrust for given operating conditions if a fuel provided to the plurality of fuel spray nozzles comprises a sustainable aviation fuel (SAF); and EImaxTO,FF is the nvPM emissions index in mg / kg of the gas turbine engine when operating at around 100% available thrust for the given operating conditions if a fuel provided to the plurality of fuel spray nozzles is a fossil-based hydrocarbon fuel. The MTO nvPM emissions index ratio of the gas turbine engine is less than 1. The gas turbine engine is configured to provide fuel comprising a SAF to the plurality of fuel spray nozzles. Also disclosed are methods of operating the gas turbine engine.

The invention relates to the technical field of function engine configuration, and discloses a development method and system based on a low-code configuration function engine, and the method comprises the steps: decoupling bottom configuration information and specific business configuration according to the core capability demand of the function engine, and configuring a basic support module for the operation of the function engine; configuring a core function of the function engine based on the basic support module, and converting a core function configuration process of the function engine into an executable logic or instruction; configuration of executable logic or instructions is achieved through a visual user interface, an operation and maintenance mechanism is adjusted in real time in combination with the operation state in the operation process of the function engine, and core functions of the function engine are continuously iterated in combination with user feedback and service changes. According to the method, the function engine can be quickly configured while the code quantity is reduced, so that business changes are quickly responded, the efficiency is improved, and the cost is reduced.

A gas turbine engine comprises: a combustion chamber (16) comprising a plurality of fuel spray nozzles (124), wherein the fuel spray nozzles (124) comprise a first subset (124A) and a second subset (124B) of fuel spray nozzles (124), wherein the combustion chamber (16) is operable in a state in which each of the fuel spray nozzles of the first subset (124A) is supplied with a higher fuel flow rate than each of the fuel spray nozzles of the second subset (124B), wherein the ratio of the number of fuel spray nozzles (124) in the first subset (124A) to the number in the second subset (124B) is in the range of 1:3 to 1:6. An nvPM emission index ratio in lean-burn cruise flight to MTO is defined as: EIR (lean) EI max TOBPR where: EI Reiseflug (mager) is defined as: EI max TO + EIA approach 2 EGG maxTOEI is the system loss-corrected nvPM emission index of the gas turbine engine in mg / kg at operation with approximately 100% of the available thrust under the given operating conditions; Steigflug is the nvPM emission index of the gas turbine engine in mg / kg, corrected for system loss, at operation with approximately 85% of the available thrust under the given operating conditions; BPR is the bypass ratio of the gas turbine engine. The nvPM emission index ratio in lean-burn cruise flight to MTO is less than 0.2. The gas turbine engine is configured to supply a sustainable aviation fuel (SAF) to the multiple fuel spray nozzles (124).

The utility model relates to a locking type engine which is fixedly locked on a frame of a motorcycle and comprises a crankcase, a crankshaft, a transmission shaft, an output shaft, an oil pump chamber, an oil storage tank, a main oil pump and an oil storage pump. An oil pan is arranged at the bottom of the crankcase, an oil return part and a partition part connected with the oil return part are arranged in the crankcase, and the oil return part comprises a connecting section and a front oil return part. The partition part, the oil return part and the first blocking part divide the inner space of the crankcase into a crankcase front half part and a crankcase rear half part. The oil pump chamber is roughly wrapped by the oil pan, the first blocking part, the connecting section, the front oil return part and the second blocking part. The oil storage tank is arranged in the crankcase and communicated with the oil pump chamber through an oil return channel. The main oil pump is contained in the crankcase, an inlet of the main oil pump is located in the oil pump chamber and used for pumping lubricating oil to the oil way system, and part of the lubricating oil is distributed to the rear half portion of the crankcase. The oil storage pump is contained in the crankcase and communicated with the rear half portion of the crankcase through a first oil drawing channel. Therefore, the engine configuration is used for solving the problems that the oil pan is wide and flat, the oil pan cannot be effectively filled with lubricating oil and the like.

Supercharger motor system for a motor vehicle, comprising: an internal combustion engine, a small-capacity, variable-geometry turbocharger designed to meet the charge air requirement up to a predefined supply value, and an electrically driven compressor arranged in parallel to the turbocharger, which is operated by an electronic control unit, wherein the engine is configured to receive a primary supply of charge air during normal engine operation below the predefined supply value from the turbocharger and to receive an additional supply of charge air from the electrically driven compressor when it is necessary to meet a temporary high demand for charge air above the predefined supply value, and a recirculation circuit to build up pressure when the electrically driven compressor starts up before the electrically driven compressor is connected to the engine, wherein the recirculation circuit includes an electrically controlled recirculation valve for directing the airflow through a duct connecting an outlet of the electrically driven compressor to an inlet of the electrically driven compressor.an electrically controlled shut-off valve positioned between the outlet of the electrically operated compressor and the motor for selectively isolating the outlet of the electrically operated compressor from the motor, and a non-return valve to prevent backflow of air from the inlet of the electrically operated compressor into the atmosphere, wherein the electronic control unit is configured to , Keeping the electrically controlled return valve open and the electrically controlled shut-off valve closed when the electrically operated compressor starts up, until the pressure in the return circuit reaches a predefined limit value, and in response to reaching the predefined limit value, opening the electrically controlled shut-off valve and closing the electrically controlled return valve.

A hybrid vehicle includes an engine, a transaxle, a propeller shaft, a main battery, and a fuel tank. The engine is disposed in front of the driver's seat and the passenger's seat, and the transaxle is disposed behind the driver's seat and the passenger's seat. The transmission shaft extends between the driver seat and the passenger seat, and connects the engine and the transaxle. The fuel tank is disposed behind the driver seat and the passenger seat and above the transaxle. The main battery is disposed behind the fuel tank and above the transaxle.

Provided is a power transmission device for a hybrid vehicle including an engine configured to generate power, an input connected with the engine and configured to provide one-speed power, a first motor generator driven when power is applied, a first transmission connected with the first motor generator, positioned parallel to the input, and configured to transmit power to the input, an output engaged with the input, a second motor generator driven when power is applied, a second transmission connected with the second motor generator, positioned parallel to the output, and configured to transmit power to the output, and a differential engaged with the output and configured to provide power to wheels.

A gas turbine engine for an aircraft. The gas turbine engine comprising: a rich burn, quick quench, lean burn (RQL) combustor having a number of fuel spray nozzles in the range of 14-22 or a number of fuel spray nozzles per unit engine core size in the range 2 to 6. An MTO nvPM emissions index ratio is defined as:EImaxTO,SAFEImaxTO,FFwhere: EImaxTO,SAF is the system loss corrected nvPM emissions index in mg / kg of the gas turbine engine when operating at around 100% available thrust for given operating conditions if a fuel provided to the fuel spray nozzles comprises a sustainable aviation fuel (SAF); and EImaxTO,FF is the system loss corrected nvPM emissions index in mg / kg of the gas turbine engine when operating at around 100% available thrust for the given operating conditions if a fuel provided to the fuel spray nozzles is a fossil-based hydrocarbon fuel. The MTO nvPM emissions index ratio of the gas turbine engine is less than 1. The gas turbine engine is configured to provide fuel comprising a SAF to the fuel spray nozzles. Also disclosed is a method of operating a gas turbine engine.

A power system for an engine that can be used in an aircraft, a marine vessel or a land vehicle has a storage tank containing ammonia. An engine supported on the vehicle is configured to operate using hydrogen gas as fuel. A cracking device in or adjacent the engine receives heat from operation of the engine, e.g., from a compressor or a combustion chamber, and also receives ammonia from the storage tank, and it uses the heat from the engine to dissociate the ammonia to produce hydrogen gas. The cracking device supplies the hydrogen gas to the engine, which has a combustor in which combustion of the hydrogen gas takes place. The energy from the combustion drives the engine so as to provide mechanical energy.

A vehicle system comprises a vehicle engine, multiple intake and exhaust valves coupled to and configured with the vehicle engine to adjust the engine's performance characteristics, and a camshaft coupled to and configured with the multiple intake and exhaust valves to control the timing of the intake and exhaust valves. The vehicle system also includes a camshaft adjuster configured to adjust the engine's camshaft position. Furthermore, the vehicle system includes a vehicle processor.The vehicle processor is configured to store data containing vehicle data and to apply an oil pressure increase to the camshaft adjuster based on vehicle data, such that the oil pressure is increased at a predetermined range of vehicle data for instability of the camshaft adjuster in order to prevent future instability of the camshaft position.

A steer-by-wire system may comprise: first and second motor assemblies sharing a common shaft; a single package with an interior space accommodating the first and second motor assemblies; a steering rack configured to move linearly in response to rotation of the common shaft of the first and second motor assemblies; and a rotary-to-linear conversion mechanism operationally connected between the common shaft of the first and second motor assemblies and the steering rack, configured to convert rotary motion of the common shaft of the first and second motor assemblies into linear motion for linear movement of the steering rack. A seal may be positioned between the first and second motor assemblies within the interior of the single package.

A method for determining a fuel characteristic, the method including receiving a gaseous fuel within a gaseous fuel rail of a dual fuel engine configured to run on at least the gaseous fuel and a diesel fuel. The method may include receiving a pressure signal from a pressure sensor indicating a pressure of the gaseous fuel within the gaseous fuel rail, and identifying at least one of an amplitude and a phase of the pressure signal, The method may further include determining a characteristic of the fuel within the fuel rail based on the amplitude or the phase of the pressure signal, and, based on the determined characteristic of the fuel, modifying an operational parameter of the dual fuel engine.

The invention provides an engine configuration method and device, an engine calling method and device, equipment and a storage medium, and the configuration method comprises the steps that an engine identifier of a to-be-configured execution engine is acquired; obtaining engine capability information of the execution engine, and determining request parameter information and output parameter information corresponding to the engine capability information; based on the engine identifier, the engine capability information, the request parameter information and the output parameter information, establishing a code project corresponding to the execution engine to obtain an engine Api of the execution engine and a computing engine plug-in service; creating a user-defined class loader corresponding to the execution engine, and configuring a corresponding loading priority rule; and integrating the engine Api of the execution engine, the calculation engine plug-in service and the user-defined class loader into the calculation engine to establish connection between the execution engine and the calculation engine. According to the scheme, unified management of different execution engines can be achieved, and the engine configuration efficiency is improved.

An apparatus for buffing rails includes a wheel frame having a front end and a back end, and a buffer frame. The buffer frame is pivotably attached to the wheel frame to modulate contact between the buffer heads and the rails. The wheel frame includes two front guide wheels, located on opposing sides of the front end of the frame, and a rear guide wheel located at the back end of the frame. The front guide wheels and the rear guide wheel are configured to engage the rails. The buffer frame includes two circular buffer heads, located at opposing sides of the buffer frame between the front and rear guide wheels. The buffer heads are configured to contact the rails. The buffer frame further includes an engine located at the buffer frame. The engine is configured to drive the rotation of the buffer heads to buffer the rails.

A spool of a gas turbine engine includes an outer shaft assembly positioned at and configured to rotate about an engine central longitudinal axis. The outer shaft assembly is secured to one or more rotating components of the gas turbine engine. The outer shaft assembly includes a first shaft portion, and a second shaft portion. The first shaft portion axially overlaps the first shaft portion at a shaft joint. A centering feature dis positioned at the shaft joint and is configured to radially center the second shaft portion relative to the first shaft portion. A tie shaft is concentric with and located radially inboard of the outer shaft assembly. The tie shaft is configured to apply an axially compressive load on the outer shaft assembly.

A method of controlling a dual fuel engine configured to receive a first fuel and a second fuel includes operating the engine using the first fuel, measuring a current load of the engine, sending a first signal to a first fuel system to deliver an amount of the first fuel to the engine, and determining at least one first operating parameter associated with the engine. The method also includes determining an engine load estimate based on the first signal and the at least one first operating parameter, comparing the engine load estimate to the measured load, and based on the comparison, determining, an adjusted engine load estimate to compensate for a drift in the first fuel system.

The application relates to an engine control method and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: acquiring an operating parameter of an engine; determining a target application scenario of the engine according to the operating parameter of the engine; determining a target Miller cycle mode corresponding to the engine according to the target application scenario of the engine, and controlling the engine to work in the target Miller cycle mode, wherein the target Miller cycle mode corresponding to different application scenarios is different, and the engine works at at least one Miller degree in one target Miller cycle mode. The engine in the application is configured with multiple Miller cycle modes, can be switched based on the target application scenario of the engine, and the application scenario of the engine is considered during switching, so that the power performance and economic performance of the engine in different application scenarios can be met, and the performance of the engine can be better exerted.