Abstract: Provided is a plunger including: a plunger body; a first surface configured to come into contact with an inner peripheral surface of the cylindrical member; a second surface disposed on a base end side relative to the first surface, the second surface having an outer diameter that is smaller than that of the first surface; an outer stepped surface disposed between the first surface and the second surface; a first housing disposed in an area at least partly corresponding to the second surface in the recess, the first housing being provided for housing a tip part of the pin; a second housing disposed on the base end side relative to the first housing, the second housing having an inner diameter that is smaller than a largest inner diameter of the first housing; and an inner stepped surface disposed between the first housing and the second housing.

Abstract: An engine includes a cylinder block including a cylinder wall, a cylinder liner, and a water jacket. The engine further includes a heater including an induction coil disposed in the water jacket. The heater is configured to heat the cylinder wall by generating an eddy current in the cylinder wall by an alternating current flowing through the induction coil.

Abstract: A heat exchanger cleaning system (HECS) includes an engine having an intake conduit and an exhaust port, and an EGR cooler having a cooler inlet in fluid communication with the engine exhaust port, a cooler outlet in fluid communication with the engine intake conduit, and an exhaust gas recirculation (EGR) valve disposed between the engine exhaust port and the EGR cooler. A first pressure sensor is disposed between the engine exhaust port and the EGR valve, and a second pressure sensor disposed in the engine intake conduit. A controller is in electrical communication with the EGR valve, the first pressure sensor, and the second pressure sensor. The controller is configured to implement a predetermined set of operating parameters for the engine and/or the EGR valve, wherein implementation of the predetermined set of operating parameters causes an increased flow velocity of exhaust gas through the EGR cooler.

Abstract: A motion conversion apparatus (100) comprises a rodrack assembly (110), which includes two guide members (140) and a first gear connection member (120) comprising opposing engaging arrangements (1201). The motion conversion apparatus (100) further comprises a gearshaft member (150) causing reciprocating linear motion of the rodrack assembly (110) along a reciprocation direction (D) by rotational motion of the gearshaft member (150). The gearshaft member (150) includes a second gear connection member (160) configured to engage with the first gear connection member (120), and a guiding surface arrangement (170) configured to contact a guide member (140) during rotational motion of the gearshaft member (150), wherein one gearshaft member (150) revolution causes a single period of reciprocating linear motion of the rodrack assembly (110). The guiding surface arrangement (170) contacts one of the two guide members (140) at an endpoint of the reciprocating linear motion of the rodrack assembly (110).

Abstract: The present disclosure relates to an air filter housing arrangement (100) for a cylindrical air filter. In particular, the air filter housing arrangement comprises an at least partially cylindrical air filter housing (102) arranged to accommodate the cylindrical air filter, wherein the air filter housing comprises an axially and a radially open portion for allowing connection/removal of the cylindrical air filter in both an axial direction and a radial direction.

Abstract: An electrically driven vehicle includes a floor panel, a tunnel section, an electrical storage device, and an electric power line. The tunnel section is formed in a vehicle forward/rearward direction in a central portion of the floor panel in a vehicle width direction. The electrical storage device is disposed behind the tunnel section of the vehicle above the floor panel. The electric power line is disposed below the tunnel section and connected to the electrical storage device. The tunnel section has an opening portion formed in a rear end portion of the tunnel section located in front of the electrical storage device of the vehicle and through which the electric power line is inserted.

Abstract: According to embodiments, there may be provided a rack-driven steering device, comprising a ball nut coupled with a ball screw via balls and rotating to slide the ball screw, a ball nut gear provided on an outer circumferential surface of the ball nut, a motor gear provided on a shaft of a motor providing driving force to the ball nut and disposed in parallel with the ball screw, and a middle gear coupled between the ball nut gear and the motor gear and transferring the driving force from the motor.

Abstract: A fan assembly including a fan frame and an impeller. The fan frame includes a frame body and a first peripheral protruding plate and has an air inlet and an air outlet. The first peripheral protruding plate protrudes from a side of the frame body and forms an air channel together with the frame body. The first peripheral protruding plate is configured to reduce a noise made by the fan assembly. The air inlet is in fluid communication with the air outlet via the air channel. The impeller is rotatably disposed on the frame body and located in the air channel. The protruding height of the first peripheral protruding plate relative to the frame body ranges from 50 to 100 percent of an overall axial thickness of the impeller.

Abstract: A hybrid vehicle includes: an engine; first and second rotating electric machines; a connection/disconnection mechanism; a power storage device; and a control device. Further, when an acceleration request occurs during EV traveling mode, the control device controls, when determining that a predetermined acceleration smaller than a requested acceleration and corresponding to a vehicle speed cannot be generated by torque output by the second rotating electric machine, the torque output by the second rotating electric machine so as to generate an acceleration less than the predetermined acceleration while controlling the torque by the engine and torque by the first rotating electric machine, and when determining that the predetermined acceleration cannot be generated by the torque output by the second rotating electric machine, controls the torque output by the second rotating electric machine so as to generate the acceleration equal to or greater than the predetermined acceleration.

Abstract: A method for operating an engine fueling system to manage fuel in an accumulator supplying fuel to an engine including multiple cylinders comprising monitoring fuel load in the accumulator, determining that the engine is operating in a cylinder deactivation mode such as a skip-fire mode during which one or more fueling events to one or more of the cylinders is being skipped, and controlling a supply of fuel from a fuel pump to the accumulator during the cylinder deactivation mode operation. In embodiments, controlling the supply of fuel includes causing fuel to be supplied from the fuel pump to the accumulator if the monitored fuel load is less than or equal to a first fuel load, and causing fuel to be not supplied from the fuel pump to the accumulator if the monitored fuel load is greater than the first load value. Controlling the supply of fuel may comprise controlling the supply of fuel during each fueling event cycle of each deactivated cylinder.

Abstract: An electric vehicle cooling system, including: a first radiator installed at a vehicle and configured to cool a power unit driven by electrical power; and a second radiator installed at the vehicle, disposed at a vehicle front side of the first radiator, and configured to cool an autonomous driving control device configured to control autonomous driving of the vehicle.

Abstract: An electric vehicle cooling system, including: a first radiator installed at a vehicle and configured to cool a power unit driven by electrical power; and a second radiator installed at the vehicle, disposed at least at one side in a vehicle width direction, or another side in the vehicle width direction, of the first radiator so as not to overlap with the first radiator as viewed along a vehicle front-rear direction, and configured to cool an autonomous driving control device configured to control autonomous driving of the vehicle.

Abstract: A piston of an internal combustion engine is disclosed. The piston includes a piston head with a piston bowl, a ring part and an annular cooling channel arranged between the ring part and the piston bowl. A closure element is provided to close the cooling channel in a direction away from the piston bowl. At least one guiding element is arranged in the cooling channel. The at least one guiding element provides a lug facing in a direction of an inner cooling channel wall and disposed at least partially circumferentially. The lug of the at least one guiding element is structured and arranged to direct cooling oil present in the cooling channel towards an upper region of the inner cooling channel wall relative to the closure element to facilitate cooling the upper region.

Abstract: An ignition device for an internal combustion engine that uses fuels including hydrogen. The ignition device includes an ignition coil including a primary coil and a secondary coil, a power supply device, a switching element, a spark plug, and a limiting diode. The switching element performs switching between passage and interruption of a primary current. The spark plug causes discharge at a gap, based on a high voltage induced at the secondary coil. The limiting diode includes a Zener diode that is forward-biased when oriented in a direction from the one end to the other end of the secondary coil. A breakdown voltage of the limiting diode is higher than the maximum value of an ON-state voltage obtained by multiplication of a value of a direct-current voltage applied to the primary coil by a ratio of the number of turns of the secondary coil to that of the primary coil.

Abstract: A cylinder head includes a cylinder head casting having four gas exchange openings formed in a fire deck. A bolt bore and a glow plug bore extend through the cylinder head casting between an upper surface and a lower surface. The four gas exchange openings are arranged at twelve o'clock, three o'clock, six o'clock, and nine o'clock positions, circumferentially around an injector bore center axis. The bolt bore is positioned angularly between the twelve o'clock position and the three o'clock position, and the glow plug bore is positioned angularly between the three o'clock position and the six o'clock position.

Abstract: A fuel delivery system for an internal combustion engine system is described herein. The fuel delivery system uses one or more bidirectional purge components to provide for bidirectional purging of a fuel from at least a portion of the fuel delivery system. The bidirectional purge components provide for a fuel delivered using the fuel delivery system to be purged into the directional purge component in more than one fluid flow direction. When a differential pressure is applied across the bidirectional purge component, the fuel is purged into an inlet and an outlet of the bidirectional purge component, leaving the component through a purge outlet and into a tank. The differential pressure can be generated using a pressured fluid such as nitrogen or a pump downstream of the purge outlet.

Abstract: Wind turbine blade comprising a lightning protection system, said lightning protection system comprising a first lightning receptor mounted near the tip of the blade and an electrical conductor electrically connecting the first lightning receptor and the base of the wind turbine blade. The lightning protection system further comprises a first aerodynamic fence attached to the wind turbine blade between the lightning receptor and the tip of the blade. In this way, a zone of smoother airflow is provided which makes a more effective target for lightning to strike, thereby avoiding damage to other parts of the blade.

Abstract: A piston includes a swirl pocket that extends radially from the radially outer lip portion to a lower axial extremity spaced away from the radially outer lip portion a first axial distance. A convex arcuate surface extends downwardly and inwardly from the radially outer lip portion, a concave arcuate surface extends to the lower axial extremity from the convex arcuate surface, and a conical portion extends upwardly and inwardly from the concave arcuate surface to an apex that is spaced a second axial distance from the radially outer lip portion that is less than the first axial distance.

Abstract: A fuel system for a prime mover includes a controller including at least one processor to determine a primary pressure value for a primary fuel, determine a secondary pressure value for a secondary fuel, and perform a first switch from the primary fuel to the secondary fuel if the primary pressure value is lesser than a first lower pressure threshold value, the secondary pressure value is greater than a second upper pressure threshold value, an operating speed value of the prime mover is greater than a fuel type initialization speed threshold value for the prime mover, an absolute speed error value is lesser than a steady-state absolute speed error threshold value for the prime mover, an operating load to be applied on the prime mover is greater than a rated load of the secondary fuel, and a fuel switchover timer threshold duration from a previous fuel switching event has elapsed.

Abstract: An internal combustion-type engine or powertrain that is capable of burning wet-alcohol fuel mixture and including a piston reciprocating within a cylinder attached to a cylinder head and connecting to a crank shaft via a connecting rod. An intake cam and valve is mounted within an intake port formed in the cylinder head and an exhaust cam and valve is mounted within an exhaust port also formed in the cylinder head. A pressurized fuel source is introduced into the cylinder by a fuel injector and the percentage of water in the alcohol/water mix operates to prolong the cylinder pressure in order to increase a mean effective pressure (IMEP), leading to a higher torque (improved Brake Mean Effective Pressure—BMEP) of the engine via a longer pressure pulse attained during the period of preferred mechanical advantage of the crank-arm of the engine.