Abstract: A cylinder head containing an exhaust system manifold for an engine includes screw holes formed through a fastening face of the cylinder head and an exhaust pipe, and outlet cooling channels that are provided adjacent to an outlet of a confluence of the manifold, and are disposed between the screw holes and the outlet. Coolant flows through the outlet cooling channels.

Abstract: A ship includes a main pipe that guides CNG whose pressure is increased by an LNG pump to the engine; a pressure sensor that measures the pressure of CNG to be supplied to the engine; a pressure adjustment valve that adjusts the pressure of the CNG to a set pressure according to engine load; a differential pressure sensor that measures a differential pressure before and after the pressure adjustment valve; and a buffer tank that absorbs a variable pressure of the CNG in the main pipe. The discharge pressure of the LNG pump is controlled such that the differential pressure is increased when the pressure is low, and the differential pressure is decreased when the pressure is high.

Abstract: A cylinder bore including an inner surface including an axial travel area and an axial non-travel area including two discontinuous axial widths of the cylindrical bore and the axial travel area extending therebetween. A nominal diameter of the axial travel area is greater than that of the axial non-travel area. A plurality of annular grooves is formed in the two discontinuous axial widths of the cylindrical bore.

Abstract: An in-cylinder pressure detecting apparatus for detecting a pressure in a combustion chamber of an internal combustion engine is provided. The in-cylinder pressure detecting apparatus comprises a pressure detecting element mounted on a tip-portion of a fuel injection device which injects fuel into the combustion chamber, and an amplifying circuit unit having an amplifying circuit which amplifies a signal output from the pressure detecting element and outputs a pressure detection signal. An in-cylinder pressure detecting unit integrated fuel injection device is configured by integrating an in-cylinder pressure detecting unit with the fuel injection device. The in-cylinder pressure detecting unit includes the pressure detecting element, the amplifying circuit unit, and a connecting member connecting the pressure detecting element with the amplifying circuit unit. The in-cylinder pressure detecting unit integrated fuel injection device is mounted on the internal combustion engine.

Abstract: The present disclosure provides a split cooling apparatus for an internal combustion engine, the apparatus including: a base inserted into a water jacket of a cylinder block, the base surrounding an outside of a cylinder along a shape of the cylinder; an insertion groove formed on the base by being depressed into an inner surface of the base; and a sealing member inserted into the insertion groove, wherein when a temperature of cooling water supplied into the water jacket reaches a preset temperature or higher, the sealing member expands so as to close a flow passage between the base and the cylinder, thereby increasing flow resistance of the cooling water and thus reducing a heat transfer rate of the cylinder.

Abstract: A controller for an internal combustion engine is configured, when the speed of combustion of a fuel in a cylinder changes as the property of the fuel injected from a fuel injection valve changes, to change a combustion limit excess air ratio that is a target value of a fuel injection amount feedforward control according to a first relationship that the combustion limit excess air ratio increases as the speed of combustion of the fuel in the cylinder increases. The controller is also configured, when the speed of combustion of the fuel in the cylinder changes as the property of the fuel injected from the fuel injection valve changes, to change the value of a combustion limit combustion speed parameter that is the target value of a fuel injection amount feedback control according to a second relationship that the speed of combustion of the fuel in the cylinder corresponding to a combustion limit increases as the speed of combustion of the fuel in the cylinder increases.

Abstract: Embodiments for a lubrication system for an internal combustion engine are provided. In one example, a lubrication system for an internal combustion engine comprises a lubricant circuit, a radiator for cooling the lubricant, a heat accumulator arranged upstream of the engine for warming up the lubricant, the heat accumulator connected in parallel to the radiator, and a valve for switching over the lubricant circuit between the radiator and the heat accumulator. In this way, the oil may be rapidly heated during cold engine start conditions.

Abstract: An internal combustion engine provided with a cylinder block which can move relative to a crankcase is provided with a block movement mechanism arranged at just one side of the left and right of the internal combustion engine, a support member supporting a side surface of the cylinder block, and a pushing member pushing against a side surface of the cylinder block at the opposite side to the side surface supported by the support member. Further, the support member supports the side surface of the cylinder block at the side of arrangement of the block movement mechanism, while the pushing member pushes against the side surface of the cylinder block at the opposite side to the side of arrangement of the block movement mechanism.

Abstract: The present invention relates to a device (1) for the thermal management of the intake air of an internal combustion engine (3) equipped with a turbocharger (5), said device comprising: a first heat exchanger (7) placed in the air intake circuit (9), a second heat exchanger (10) placed on the main exhaust line (12) and connected to the first heat exchanger (7) to form a heating loop (A), said thermal management device (1) furthermore comprising a so-called low-pressure exhaust gas recuperation system (14), comprising a first take-off (141) placed downstream of the turbine (5b), an outlet (142) placed upstream of the compressor (5a), and a control valve (140), the second heat exchanger (10) being placed between the turbine (5b) and the first take-off (141), the main exhaust line (12) comprising a take-off branch (26) between a second take-off (201) placed on the main exhaust line (12) upstream of the second heat exchanger (10), a take-off device (200) able to manage the circulation of the exhaust gases, and

Abstract: Pressurized lubricating oil is accumulated in the bearings of opposed pistons and accumulated oil is dispensed therefrom for bearing lubrication and also for cooling the undercrowns of the pistons by jets of oil emitted from the bearings.

Abstract: A vehicle includes at least one sensor generating a signal to control an operation of an internal combustion engine; and a control unit configured to store a control parameter to control an operation of the internal combustion engine, and to correct the control parameter based on an output of the at least one sensor. The control unit stops correcting the control parameter while the vehicle is at a halt, and the power generator is generating electric power by driving of the internal combustion engine.

Abstract: A connecting rod for connecting between a crankshaft and a piston, includes a small end with a cylindrical hole adapted to for receiving a piston pin, a big end having a crank pin bore adapted for receiving a crank pin of a crankshaft and a stem portion extends between the small end and big end. The stem portion can have an I-beam cross-section with a pair of legs and a web extending between the pair of legs. The web includes oppositely facing surfaces defining a thickness that is less than a thickness of the pair of legs. The web includes at least one grooved/recessed portion that is recessed relative to the oppositely facing surfaces of the web.

Abstract: A marine engine has a cylinder block having a plurality of cylinders. A cooling jacket is formed in the cylinder block and is configured to convey cooling fluid alongside the plurality of cylinders. The cooling jacket has a top end and a bottom end. A ledge is formed in the cylinder block. The ledge radially extends into cooling jacket at a location between the top end and the bottom end. A spacer is disposed in the cooling jacket and supported by the ledge so that the spacer remains spaced apart from the bottom end, thereby maintaining a lower cooling passage between the spacer and the bottom end.

Abstract: A peripheral wall portion of a piston is provided with a through hole penetrating through the peripheral wall portion. A cylinder is provided with a scavenging passage having a first opening being open in a bore surface and configured to make a bore section and a crank chamber communicate with each other and is provided with a communication passage having a second opening being open in the bore surface on the other side with respect to the first opening and configured to make the bore section and the scavenging passage communicate with each other. The cylinder and piston are configured so that the through hole overlaps the second opening to communicate with the communication passage in a partial interval of a scavenging stroke in which the first opening becomes open in the bore surface on one side of the piston with reciprocal motion of the piston.

Abstract: A fuel-saving device for treating a fuel includes at least one pyroelectric element to be in contact with the fuel. The at least one pyroelectric element includes a high molecular polymer substrate and a plurality of polarized pyroelectric particles dispersed in the polymer substrate. The polarized pyroelectric particle has infrared absorption peaks at wavenumber ranging from 430 cm?1 to 980 cm?1 and from 1600 cm?1 to 2700 cm?1.

Abstract: A two-stroke internal combustion engine has a crankcase, a cylinder block defining at least one cylinder, a cylinder, a crankshaft, at least one piston, at least one scavenge port, at least one throttle body for supplying air to an interior of the crankcase, at least one direct fuel injector fluidly communicating with at least one combustion chamber for injecting fuel directly in the at least one combustion chamber; and at least one port fuel injector fluidly communicating with the interior of the crankcase for injecting fuel upstream of the at least one combustion chamber. Methods for controlling an engine having at least one direct fuel injector and at least one port fuel injector are also described.

Abstract: A split cooling system of an internal combustion engine may include a water pump configured to circulate cooling water; a cylinder head and a cylinder block configured to be supplied with the cooling water from the water pump; an integrated flow control valve configured to include an inlet provided to be supplied with the cooling water of the cylinder head and a plurality of valves that are configured to be opened or closed to distribute the cooling water introduced through the inlet to an oil heat exchanger, a heater core, and a radiator; and a split cooler configured to be mounted at the cylinder block to provide a split cooling channel in the cylinder block and the cylinder header.

Abstract: When a stopper portion is brought into abutment against body high-compression-ratio side stopper portion, when viewed in the control shaft axial direction, it is configured that the distance between body high-compression-ratio side stopper surface and control-shaft high-compression-ratio side stopper surface becomes relatively longer as being closer to the control shaft rotation center. Similarly, when a stopper portion is brought into abutment against body low-compression-ratio side stopper portion, when viewed in the control shaft axial direction, the distance between body low-compression-ratio side stopper surface and control-shaft, low-compression-ratio side stopper surface becomes relatively longer as being closer to the control shaft rotation center.

Abstract: A water jacket having a coolant flow crossing the space over the cylinder head is provided for an internal combustion engine of an automotive system. The internal combustion engine is equipped with a cylinder and a cylinder head. The water jacket includes a lower water jacket having side passages surrounding the cylinder and connected together by a plurality of branches disposed over the cylinder head, so as to create the coolant flow crossing the space over the cylinder head.

Abstract: An engine generator has an opening and closing mechanism including: a control shaft provided to a valve shaft of a choke valve to be rotatable relative thereto within a predetermined angular range; an urging member urging the valve shaft relative to the control shaft in a direction in which an opening degree of the choke valve decreases; a restriction mechanism that sets a minimum opening degree of the choke valve by restricting a range of rotation of the control shaft; a choke operating portion which, upon operation, drives the restriction mechanism in a direction in which the minimum opening degree of the choke valve decreases; and a negative pressure mechanism driven by a negative pressure generated during an operation of the engine to cause the control shaft to rotate to increase the minimum opening degree of the choke valve within the range of rotation restricted by the restriction mechanism.