Abstract: A throttle device 1 includes a throttle valve 2 which is disposed in an intake passage 101, and includes a first valve body 20 and a first rotatable shaft 21 for rotatably holding the first valve body 20, a bypass valve 3 which is disposed in a bypass passage 8 connected to the intake passage 101 so as to bypass the throttle valve 2, and includes a second valve body 30 and a second rotatable shaft 31 for rotatably holding the second valve body 30, a common motor 4 for applying a driving force to the throttle valve 2 and the bypass valve 3, a first gear 5 configured to be able to transmit or block the driving force of the motor 4 with respect to the first rotatable shaft 21, a second gear 6 configured to receive the driving force of the motor 4 and transmit the driving force to the second rotatable shaft 31, and a sensor 7 for detecting a rotation amount of the second rotatable shaft 31 of the bypass valve 3 or another rotatable shaft rotating in conjunction with the second rotatable shaft 31.

Abstract: Operating a gaseous fuel engine system includes spark-igniting a gaseous hydrogen fuel and air in a prechamber sparkplug to ignite a main charge containing gaseous hydrogen fuel and air in a cylinder. Operating the gaseous fuel engine system also includes determining a preignition condition and conveying cooling air to the prechamber sparkplug based on the preignition condition to limit preignition of gaseous hydrogen fuel and air in the prechamber sparkplug. Related apparatus and control logic is also disclosed.

Abstract: A blade of a turbomachine turbine, including a platform and a vane, including a cooling area extending along the trailing edge, with three distinct types of orifices, wherein the blade includes, at the root of the blade, a first type of orifices formed in the thickness of the trailing edge fillet, at the top of the blade, a third type of orifice formed in the thickness of at least one of the lower surface and upper surface walls, and in the middle of the blade, a second type of orifice formed in the thickness of at least one of the lower surface and upper surface walls. The lower surface wall, the upper surface wall and the trailing edge fillet define a dihedral with a radially changing radius and spacing.

Abstract: The invention relates to an internal combustion engine system (100), comprising: —an internal combustion engine (2) comprising a cylinder block (3) housing a plurality of cylinders (4), a first intake manifold (6a) connected to a first group of cylinders (4a) a second distinct intake manifold (6b) connected to a second group of cylinders (4b) and a first, respectively a second, exhaust manifold (8a, 8b) for receiving the exhaust gas emitted from the first, respectively the second, group of cylinders (4a, 4b); —an air inlet line (10); —an EGR line (20) connected to the first and second exhaust manifolds (8a, 8b); wherein the internal combustion engine system is operable in at least two operating modes, respectively a normal operating mode in which all cylinders are supplied with fuel and a regeneration operating mode, in which the cylinders of the first group of cylinders (4a) are no longer supplied with fuel, characterized in that: —the system also includes a mixing unit (30) comprising a four-way valve, said

Abstract: An electronic control method for a throttle performed by an electronic control throttle device is disclosed. The electronic control method includes: generating, by the electronic control section, the control signal for the throttle with a sum of a proportional torque and an integral torque as a value of a torque command, by calculating an engine speed deviation from a difference between a calculated or input engine speed and an input engine speed command; calculating an engine rotational angular acceleration based on the engine speed; obtaining the proportional torque from a product of the engine speed deviation and a predetermined coefficient; and obtaining the integral torque by integrating the product of the engine speed deviation and the predetermined coefficient.

Abstract: Methods and systems are provided for a fuel system. In one example, a method may include cleaning an orifice of an ELCM. The cleaning includes adjusting a position of a valve in a passage to fluidly couple a reference orifice of the ELCM to an intake manifold.

Abstract: Proposed is a method and system for controlling an Exhaust Gas Recirculation (EGR) device in high-load driving, and an internal combustion engine vehicle including the system. The method of controlling an EGR device in high-load driving compares a ratio of pressures at a front end and a rear end of a throttle valve with a preset critical value that is a reference for determining high-load driving, performs Wide Open Throttle (WOT) control for fully opening the throttle valve when the ratio of pressures is larger than the preset critical value, determines whether engine torque due to the WOT control and use of EGR satisfies torque requested by a driver, and corrects throttle opening or stops use of EGR, depending on whether the engine torque due to use of EGR together with the WOT control satisfies the requested torque.

Abstract: To obtain a gasoline direct injection rail provided with an inlet capable of reducing pressure pulsation without increasing the inner diameter of a high-pressure pipe even when the pressure of a system is increased. A gasoline direct injection rail comprises an inlet 2, 21 at a first end 15, 34 of a rail body 1, 20, wherein an orifice 12, 31 is provided inside the rail body 1, 20, the inlet 2, 21 has a fuel flow passage 4, 23, and a hollow part 8, 27 is provided between the fuel flow passage 4, 23 and the orifice 12, 31.

Abstract: A fan (1) has a rotor (10) and a fan impeller (20). The rotor (10) has a connecting portion (11) and the fan impeller (20) has a fastening portion (21). The impeller is centered relative to the rotor (10) with the fastening portion (21) on the connecting portion (11) by at least one centering element (40). The impeller is fixed to the rotor (10) by at least one fastening element (30). The fastening element (30) is a screw with a screw head (31), a threaded portion (33), and a shaft arranged between the threaded portion (33) and the screw head (31). A spacer sleeve (34) is arranged around the shaft. A thread (12) corresponding to the fastening element (30) is, respectively, formed in the connecting portion (11).

Abstract: To meet both a request to improve the thermal efficiency in the medium load operation of an engine and a request to suppress knocking in the high load and high rotation operation of the engine, the engine includes a main combustion chamber comprising a cylinder block, a cylinder head, and a piston; a pre-chamber having a plurality of injection holes that open into the main combustion chamber; and a spark plug that ignites an air-fuel mixture in the pre-chamber. A compression ratio of the main combustion chamber is not less than 14 and not more than 24. A first index, which is the product between a total cross-sectional area of the plurality of injection holes and the compression ratio, is not less than 0.1496 cm2 and not more than 0.8449 cm2.

Abstract: A turbine blade having cooling holes formed therein and a turbine including the same are provided. The turbine blade includes an airfoil having a leading edge and a trailing edge formed thereon and a cooling passage defined for flow of a cooling fluid therethrough, and a cooling hole configured to communicate between the cooling passage and outside in the airfoil and having an inlet and an outlet, wherein the cooling hole includes an expanded portion and a grooved portion formed in the outlet, the grooved portion being recessed from the expanded portion toward the trailing edge.

Abstract: In an ignition apparatus, a deterioration determination circuit performs a deterioration determination task of (i) monitoring an absolute increase in a temperature parameter during a predetermined deterioration detection period that has been started since an energization command signal being inputted to a control circuit, and (ii) performing a comparison between the absolute increase in the temperature parameter and a predetermined deterioration detection threshold to thereby determine whether a level of deterioration of a switching circuit is within an acceptable level.

Abstract: A method for cleaning a combustion engine is disclosed wherein an apparatus with a cable is coupled to an on-board diagnostic port on the vehicle, and a service hose with a misting nozzle adapter is coupled to a first port on a vehicle. A controller monitors data from the on-board diagnostic port on a vehicle, where the data preferably includes the engine rpm, the catalytic convertor temperature, the engine coolant temperature, the MAF, and the MAP. The controller monitors information from the cleaning apparatus, and the information is processed to adjust the dispensing of the cleaning solution. The adjustment of the cleaning solution can vary the rate, volume, pressure, pulse interval, flow pattern, and duration of the solution in the engine.

Abstract: Methods and systems are provided for balancing a plurality of fuel injectors. In one example, a method includes adjusting port-fuel injecting parameters in response to a learned direct injector fueling error.

Abstract: There are described methods and systems for operating a glow plug. The method comprises monitoring a glow plug current; applying a nominal voltage VN to the glow plug when the glow plug current is between an upper threshold I1 and a lower threshold I2<I1; applying a voltage VH>VN to the glow plug when the glow plug current exceeds the upper threshold I1; and applying substantially no voltage to the glow plug when the glow plug current falls below the lower threshold I2.

Abstract: The aspects of the disclosed embodiments are directed to a fan for displacing a fluid, which fan includes a rotor rotating around its axis of rotation and surfaces, such as blades, forming a flow when the rotor rotates. The rotor is arranged to displace fluid simultaneously with at least two different flows (F1, F2).

Abstract: A control device 60 of a vehicle drive device comprises a processing part 81 configured to use a trained model using a neural network to calculate an output parameter of a vehicle, and a control part 82 configured to control the vehicle drive device based on the output parameter. The neural network includes a first input layer to which input parameters of the vehicle other than a design value are input, a second input layer to which the design values are input, a first hidden layer to which outputs of the first input layer are input, a second hidden layer to which outputs of the second input layer are input, and an output layer outputting the output parameter, and is configured so that the second hidden layer becomes closer to the output layer than the first hidden layer.

Abstract: A ceiling fan or ceiling fan assembly can include a motor to rotatably drive a set of fan blades. The set of fan blades are attached to the motor via a blade iron, which mounts the blades to a rotating rotor of the motor. A grommet is provided within holes of the blades, between the blade and a fastener, to reduce vibration and improve dampening at the junction between the blades and the motor. Multiple flanges are formed at the end of each grommet. The multiple flanges provide for improved compressibility to improve ease of installation, which resisting sliding of the grommet from the holes in the blades.

Abstract: Various embodiments include a method for operating a fuel evaporation retention system of a vehicle with an internal combustion engine. It includes measuring a pressure change resulting from a temperature change of a gas volume in the fuel tank over a defined period of time while the vehicle is at a standstill after the engine controller has been switched off and comparing an expected pressure profile based on a given temperature profile based at least in part on the tank fill level and after the engine controller has been switched on to an actual measured pressure profile from a previous vehicle standstill phase. If the measured pressure profile lies within a settable tolerance around the expected pressure profile, the method confirms a leak-tight fuel tank. If the measured pressure profile lies outside the settable tolerance, the method identifies a faulty fuel tank and displaying an alert.

Abstract: A sealing ring gland receives a sealing ring. The sealing ring gland includes an inner wall surface which seals against an inner periphery of the sealing ring. An outer wall surface is radially offset from the inner wall surface and seals against an outer periphery of the sealing ring. The sealing ring is axially compressed between an upper wall surface and a lower wall surface of the sealing ring gland. At least one of the upper wall surface and the lower wall surface includes an expansion volume which provides space for the sealing ring to expand upon swelling of the sealing ring.