Abstract: The present disclosure relates to a device for pressure control, including a rod and a plunger. The rod has a first end region delimiting a pressurized space and is movable along an axis between a top dead center and a bottom dead center. The plunger has a traverse substantially perpendicular to a plunger axis transmitting kinetic energy from a plunger drive to the rod in a contact region between a traverse surface and a second end region of the rod arranged opposite the first end region. The rod includes a calotte-shaped end region in the contact region of the rod and the traverse includes a calotte-shaped recess in the contact region of the traverse.

Abstract: A sliding bearing and a method for its manufacture are disclosed. The sliding bearing may include a metallic substrate, an electrically insulating layer on the metallic substrate, and an electrical component on the electrically insulating layer. The sliding bearing may be operatively connected to a monitoring module configured to monitor the electrical component.

Abstract: The present invention relates to a turbine assembly (10) of a turbine engine (1), comprising at least: a first bladed rotor (12), a bladed stator (13) and a second bladed rotor (14) arranged in series, the rotors (12, 14) being mounted on a shaft (2); a sealing plate (20) extending between the stator (13) and the shaft (2) and separating a first recess (C1) arranged between the first rotor (12) and the stator (13), from a second recess (C2) arranged between the stator (13) and the second rotor (14); and pressure-reducing means (300, 31) positioned inside the first recess (C1), the assembly being characterized in that said pressure-reducing means (300, 31) comprise a plurality of substantially radial recompression fins (300) extending into the first recess (C1).

Abstract: An exhaust emission control device for an internal combustion engine including multiple reed valve chambers which are provided to cylinder head portions of a multi-cylinder engine. The reed valve chambers are formed by covering recessed portions in the cylinder head portion with reed valve covers. Upstream sides of the reed valve chambers communicate with the atmosphere via a secondary air supply pipe. Downstream sides of the reed valve chambers communicate with exhaust ports via communication passages provided to the cylinder head portion. The reed valves are interposed between the upstream sides and the downstream sides of the reed valve chambers, and are opened by exhaust pulsation pressure. In the cylinder head portion, the multiple reed valve chambers are disposed with spaces therebetween. The reed valve covers communicate individually with the secondary air supply pipe, and the reed valve covers are connected in series by the secondary air supply pipe.

Abstract: A mounting structure of an air intake apparatus includes an air intake apparatus including a first mounting portion made of resin and a second mounting portion made of resin, a first collar member made of metal positioned within a first mounting bore at the first mounting portion, a second collar member made of metal positioned within a second mounting bore at the second mounting portion, and a large diameter annular portion made of metal provided between the first and second collar members, the first collar member, the large diameter annular portion and the second collar member being fastened while making contact with one another in a state where the first mounting portion and the second mounting portion are fastened together relative to the cylinder head by a fastening member inserted to be positioned within the first collar member, the large diameter annular portion and the second collar member.

Abstract: Methods and systems are provided for a variable displacement engine. In one example, a method may include flowing charge air from a deactivated cylinder to an adjacent firing cylinder.

Abstract: A fuel supply device has a cover member which is attached to an opening portion of a fuel tank and a pump unit comprising a pump. The cover member and pump unit are connected via a connecting portion where the pump unit is rotatably connected to the connecting portion. Further, the fuel supply device includes a fuel residual amount detection device which is attached to the pump unit and configured to detect the residual amount of fuel. The fuel residual amount detection device includes a gauge main body to which electric wirings are connected, an arm portion which is movably mounted relative to the gauge main body and a float which is attached to a leading end of the arm portion. The float is positioned above a lower terminal end of the base portion when the cover member is held and lifted while the pump unit rotates with respect to the connecting portion.

Abstract: A low temperature cooling device applied to an internal combustion engine includes an EGR device, a low temperature coolant circuit, a prediction unit predicting whether an EGR cooler falls into a state where a cooling performance falls short according to at least one of an operating state of an internal combustion engine and an outside air environment while a control that dehumidifies an EGR gas by cooling the EGR gas in the EGR cooler is performed, and a control unit performing at least one of a first increase control that increases a flow rate of a coolant flowing into the EGR cooler, a second increase control that increases an air rate of a radiator fan cooling a radiator, and an inhibition control that inhibits the EGR gas from flowing back when the prediction unit predicts that the EGR cooler falls into the state where the cooling performance falls short.

Abstract: In a cylinder head (1) having a built-in exhaust manifold (6) of an engine (10), outer coolant passages (23A and 23B) in which an engine coolant circulates are provided, and are disposed along the manifold positioned at a side of an outer surface (14C) of the cylinder head (1). Further, inner coolant passages (24A and 24B) having shapes which are branched from the outer coolant passages (23A and 23B) and then join are provided, and are disposed along the outer coolant passages (23A and 23B) and at an inner side of the cylinder head (1).

Abstract: A piston arrangement comprising: a piston, a first chamber, a second chamber and a power transfer assembly; wherein the piston comprises a first head movable within the first chamber and a second head movable within the second chamber; wherein, in operation, the piston follows a linear path in reciprocating motion along a first axis; wherein the power transfer assembly comprises a shaft rotatably coupled to a shuttle bearing and arranged to convert the reciprocating motion of the piston to rotary motion of the shaft; wherein the shuttle bearing moves relative to the piston in reciprocating motion along a second axis substantially transverse to the first axis; and wherein the shuttle bearing is coupled to the piston via a non-planar bearing surface thereby allowing rotation of the shuttle bearing.

Abstract: A breather device of a vertical type engine includes: an engine body having a crank chamber and a cylinder bore; and a timing transmission chamber provided above the engine body and housing a timing transmission device that connects between a crankshaft and a cam shaft which are vertically placed, respectively, the timing transmission chamber communicating at one side with the crank chamber and at the other side with the outside, wherein the breather device includes a breather chamber communicating with the timing transmission chamber via a communication tube, the breather chamber communicating with an intake silencer box. Hence, oil can be efficiently separated from breathing gas of a crank chamber.

Abstract: A cylinder liner 2 is enveloped in a cylinder block through insert casting. The cylinder liner 2 includes a cylinder liner body 2a and a metal coating layer 8 formed on the body 2a through a cold spraying method. Since the metal coating layer 8 is formed in a non-molten and oxygen free state, few oxygen films or oxygen layers are formed on the surface of or in the interior of the metal coating layer 8. Thus, the thermal conductivity of the metal coating layer 8 is sufficiently high. As a result, the thermal conductivity from the metal coating layer 8 to the cylinder block is sufficiently high.

Abstract: An engine includes: a cylinder block; and a piston ring, in which the cylinder block has a cylinder liner portion formed of an aluminum-based composite reinforced by a ceramic containing at least either of a silicon carbide and an alumina, and in which the piston ring is coated with a nitride film (20) including a vanadium nitride layer (21) exposed on an outer circumferential sliding surface (17).

Abstract: An oil mist separator has a pressure regulator valve which is located in the blow-by line downstream of the oil mist separator element in the flow direction of the gas. The pressure regulator valve has a bias so that it opens above a specified pressure difference between the blow-by line and a neighboring chamber. Located around the oil mist separator element is a bypass line which has a bypass valve. The bypass valve has a bias that causes the bypass valve to close below a specified pressure difference between the suction side and the pressure side of the oil mist separation element. The pressure regulator valve and the bypass valve are connected with each other so that the pressure regulator valve, as it closes, increases the bias of the bypass valve.

Abstract: A cylinder head cover, on which a breather chamber wall and control valve device are mounted is not enlarged while the capacity of a breather chamber is increased. For an internal combustion engine, control valve devices, which control the operation of a hydraulic valve stop mechanism that serves as a cylinder stop mechanism, and an outer chamber wall of a breather chamber wall that forms a breather chamber into which a blow-by gas flows, project in a predetermined direction and are mounted on the outer surface of a top wall of a cylinder head cover. When viewed in the predetermined direction, the outer chamber wall has an overlap section that overlaps with a part of the control valve device. Therefore, the overlap section is covered in the particular direction by the control valve device.

Abstract: In a process of mounting a camshaft 20 to a supporting member 10, a shaft body 21 is firstly inserted into a first bearing hole 13F in the front side of the supporting member 10, before the shaft body 21 is axially moved toward the second bearing hole 13R. In order to get a cam lobe 22 through a concave bearing portion 13M in a semicircular arc shape, rotation of the camshaft 20 enables a cam nose 22b to be directed downward, which is opposite from the concave bearing portion 13M. This enables avoiding the interference between the cam nose 22b and the concave bearing portion 13M, even when the curvature radius of the concave bearing portion 13M is reduced. Consequently, reduction of the curvature radius of the concave bearing portion 13M achieves the downsizing of the supporting member 10.

Abstract: A multipart piston for an internal combustion engine has a top piston part and a bottom piston part. The top piston part is provided with an externally threaded head at the end facing the bottom piston part while the bottom piston part is equipped with a support plate at the end facing the top piston part. The support plate encompasses a plate member and an internally threaded element into which the threaded head is screwed. The plate member is joined to the bottom piston part via a connection zone in such a way that the bottom end of the threaded element lies below the bottom end of the connection zone relative to the longitudinal axis of the piston.

Abstract: This invention relates to a fuel activating device and method consisting of at least two separate infrared-emitting bodies, each infrared-emitting body being engineered to have specific peak wavelength and spectral luminance in 3-20 um (micrometer) wavelength range, that provides an effective means for enhancing combustion of hydrocarbon fuels in internal combustion engines, resulting in better engine performance with increased power, improved fuel economy, and reduced emissions.

Abstract: An oil separator element of the type that is used, for example, for the separation of oil from blow-by gases in internal combustion engines is disclosed. The oil separator element has a housing which forms a cavity through which the gas can flow. The housing has an interface which divides the oil separator element into two element halves. Each of the element halves has a groove family in the interface. The grooves of the two families thereby run at an angle to one another in the interface and at least some of the grooves intersect one another. In an oil separator element of this type, the air flowing through is set in rotational motion so that both on account of the centrifugal forces that occur as well as the impact of the oil mist or the oil droplets that are contained in the gas that is carrying the oil, these oil droplets or oil mist are separated on the walls of the grooves.

Abstract: A compression ignition internal combustion engine having at least one combustion chamber for high ignition pressures. Each combustion chamber comprises a cylinder bore in the crankcase or a cylinder liner in the cylinder bore, a piston, and a cylinder head. Spaces for conveying coolant are disposed in the crankcase such that coolant flows about walls of the cylinder bore or a liner. The cylinder head has coolant chambers. The internal combustion engine has a separate cooled plate disposed between the combustion chamber and the cylinder head. The cooled plate forms a surface cover of the combustion chamber and is connected in a positively engaging and gas tight manner with the crankcase and/or the cylinder liner. Valve seats for at least one inlet valve and at least one outlet valve are disposed in the cooled plate, and at least one injection valve extends through the cooled plate.