Abstract: A diagnosis device for an evaporated fuel processing device includes: a pump arranged to pressurize or depressurize a system including the fuel tank and the canister; at least one pressure sensor arranged to sense a pressure within the system; and a fuel temperature sensor arranged to sense a temperature of a fuel within the fuel tank, the diagnosis device being configured to select a first leakage diagnosis using a positive pressure or a negative pressure existing within the fuel tank, or a second leakage diagnosis using a forcible pressurization or a forcible depressurization by the pump, based on a temperature difference between a fuel temperature at a start of driving, and a fuel temperature after an end of the driving, with respect to a request of a leakage diagnosis.

Abstract: A multi-joint crank drive of an internal combustion engine includes at least one coupling member rotataby supported on a crankpin of a crankshaft for rotation about a coupling member rotation axis; and at least one connecting rod supported on a crankpin of an eccentric shaft for rotation about an eccentric rotation axis, wherein the coupling member is connected with a piston rod of a piston of the internal combustion engine for pivoting about a piston rod rotation axis and with the connecting rod for rotation about a connecting rod rotation axis, said coupling member having a bearing eye receiving the crankpin of the crankshaft, wherein a coupling angle between an imagined straight line though the coupling member rotation axis and the connecting rod rotation axis and an imagined straight line through the coupling member ration axis and the piston rod rotation axis is at least 140° and at most 180°, wherein a center point of the coupling member is arranged outside the bearing eye, and on a side of a first plan

Abstract: An intake device of an internal combustion engine, includes: a plurality of intake ports which have outer walls and partition walls and are adjacent to each other via the partition walls; a valve body which is provided in each of the intake ports, and switches a flow path of the intake port by rotation around a rotation shaft; a holding member which is installed on each of the outer walls and the partition walls; and a rolling bearing which is mounted on at least one of the holding members, and supports the valve body to be freely rotatable, wherein the holding member includes a wall surface between the rolling bearing and the valve body in a direction in which the rotation shaft extends.

Abstract: The disclosure relates to a method for operating an internal combustion engine in a six-stroke mode, wherein the engine comprises at least one cylinder with a reciprocating piston, each cylinder having at least one inlet and outlet valve. The method involves performing a first stroke where a gas comprising at least air is induced into a combustion chamber from an intake conduit; a second stroke where the gas and injected fuel is compressed; a third stroke where the compressed fuel/gas mixture is expanded following an ignition; a fourth stroke where combusted exhaust gas is expelled through a catalyst body into a first exhaust conduit; a fifth stroke where pressurized fuel and pressurized heated water is injected into the combustion chamber to be expanded; and a sixth stroke where steam and gaseous fuel mixture is expelled through the catalyst body into a second exhaust conduit.

Abstract: A system and method for delivering lubrication oil to an internal combustion engine. The engine lubrication system (10) comprises a lubrication oil reservoir (13), a pump (15) to deliver lubrication oil to the engine from the reservoir (13), and a pressurization system (17) for pressurizing oil received by the pump from the reservoir for delivery to the engine. The pressurization establishes a positive pressure at the pump inlet to assist delivery of oil having entrained vapor cavities to the engine for lubrication thereof. The pump (15) comprises a solenoid actuated positive displacement pump, whereby operation of the pump may be selectively controlled by the manner in which the solenoid is operated. The engine lubrication system (10) further comprises a pressure release system (46) comprising pressure relief valve (47) for relieving excess fluid pressure within the oil reservoir (13).

Abstract: A method for improving the cold start capacity of an internal combustion engine which is cooled with water that is pre-heated for the cold start. The pre-heated hot water is conducted through flow paths in a region of the crankcase ventilating device and/or in a water/air heat exchanger of the crankcase ventilating device. An internal combustion engine with at least one cooling water circuit, at least one cooling water pump which is arranged in the cooling water circuit, and at least one crankcase ventilating device. The crankcase ventilating device is at least temporarily integrated into the cooling water circuit of the internal combustion engine, and the cooling water circuit has a pre-heating assembly for pre-heating the cooling water when the internal combustion engine is cold started.

Abstract: A charge-air cooler for a fresh-air system of an internal combustion engine may include a cooler box and an upper shell such as a flange plate. The cooler box may include a cooler box passage opening, and the flange plate may include a flange plate passage opening arranged complementary with the cooler box passage opening. An adapter element may have a first end section and a second end section. The adapter element may be connected to a rim of the cooler box that borders the cooler box passage opening. A pipe element may be detachably secured to the adapter element and have a first end section and a second end section. The first end section of the adapter element and the first end section of the pipe element may define a clip-type connection when the adapter element and the pipe element are secured to one another.

Abstract: An internal combustion engine, which can improve an annual energy consumption efficiency, is provided. A gas engine 1 includes: an oil cooler 11 having a passage via which heat is exchanged between engine cooling water and lubricating oil; and a control unit 12 configured to control a temperature of the engine cooling water to a constant temperature so as to cool the lubricating oil during high load operation and to heat the lubricating oil during low to medium load operation. The control unit 12 increases the temperature of the engine cooling water during low to medium load operation compared with the temperature of the engine cooling water during high load operation. An oil jet 18a, which is configured to inject the lubricating oil into a rear surface of a piston 17, is provided.

Abstract: A cooling structure of a multi-cylinder engine is provided, which includes a water jacket formed in a cylinder block to surround cylinder bores of cylinders arranged inline, a spacer, and a coolant inlet. The spacer includes openings at positions corresponding to inter-cylinder-bore portions and a rectifying part extending outwardly on a lower side of the openings. The rectifying part inclines continuously upwardly while extending in one of an exhaust- and intake-side section of the jacket from a first end side to a second end side that is the opposite side from the first end side in a cylinder line-up direction, extending on the second end side from the one of the exhaust- and intake-side sections to the other one of the exhaust- and intake-side sections, and then extending from the second end side to the first end side in the other one of the exhaust- and intake-side sections.

Abstract: A heat storage device including a fuel tank holding a fuel to be combusted in an engine, a heat storage vessel including a heat storage material that dissipates heat by adsorbing or chemically reacting with a fuel gas that has been vaporized, and that stores heat by desorption by heating the fuel gas, a first flow path to feed the fuel from the fuel tank to the heat storage vessel, and a second flow path to feed the fuel gas from the heat storage vessel to the engine.

Abstract: An intake manifold is provided with a surge tank and a plurality of branch pipes branching from the surge tank, and is made up of a plurality of separate pieces. Each of the branch pipes is provided with an intake outlet for outflow of intake air to each cylinder of an engine. The intake manifold further includes a single gas inflow port, a plurality of gas outflow ports opening one in each of the branch pipes, and a gas passage extending in a branch form from the gas inflow port to each of the gas outflow ports. Each of the gas outflow ports is located away from the intake outlet of the corresponding branch pipe by a predetermined passage length.

Abstract: A device for removing pollutants from an automobile exhaust, the device including: a body filled with active carbon particles, first supporting columns, an output pipe for outputting a fuel additive, a basin-shaped base of a regulating valve box, a top cover, a regulating pipe, second supporting columns, a bearing grid plate configured to bear the active carbon particles, a bottom sealing cover, and an air pipe. The first supporting columns are disposed on the top of the body. The output pipe is connected to the middle part of the top of the body via the first supporting columns. The basin-shaped base of the regulating valve box is connected to two sides of the top of the body via the first supporting columns. The basin-shaped base is connected to the top cover; the regulating pipe is disposed on the upper part of the top cover.

Abstract: A fuel reforming system for a vehicle includes an Exhaust Gas Recirculation (EGR) line for recirculating a part of exhaust gas of an engine towards an intake side, a fuel reformer provided on the EGR line, the fuel reformer reforming fuel that is to be supplied to the engine, and the fuel reformer supplying the reformed fuel to the engine via the EGR line, an EGR valve provided downstream of the fuel reformer, and a pressure control valve provided in the fuel reformer for controlling an inner pressure of the fuel reformer.

Abstract: The present invention relates to a cooling control apparatus which performs control for cooling an internal combustion engine by causing an electric pump to circulate cooling water and causing an electric fan to supply cooling air to a radiator. The cooling control apparatus comprises an electric pump for circulating a coolant through a coolant passage formed in the internal combustion engine, and a radiator and a radiator fan which are for cooling the coolant. When the internal combustion engine stops after completion of warming-up, the radiator fan and the electric pump are driven to cool the internal combustion engine, and when a temperature of the coolant decreases to less than a temperature at a time of engine stop, the radiator fan is stopped in a state in which the electric pump is operated.

Abstract: An engine block, an engine subassembly, and method for providing and manufacturing an engine block. The engine block includes a plurality of cylinder barrels positioned in the engine block, at least one oil jacket channel formed in the engine block, and an oil inlet port positioned in a peripheral wall of the engine block and connected to the at least one oil jacket channel. The at least one oil jacket channel includes a plurality of curved channel sections. Each curved channel section in the plurality of curved channel sections extends about at least a portion of a circumferential portion of a respective cylinder barrel in the plurality of cylinder barrels. The at least one oil jacket channel extends between adjacent cylinder barrels of the plurality of cylinder barrels in the engine block.

Abstract: An ebullient cooling device includes: a coolant passage configured to be formed inside an internal-combustion engine, and allow a coolant that cools the internal-combustion engine by boiling to flow therethrough; an expander configured to be driven by the coolant that has boiled in the internal-combustion engine; a condenser configured to be located at a downstream side of the expander, and cool the coolant that has passed through the expander; and a heat exchanger configured to cool a cooling object by heat exchange with the coolant, wherein a low-pressure region including the expander and the condenser and a high-pressure region other than the low-pressure region are formed in a path through which the coolant circulates, and a passage connecting to a part through which a liquid-phase coolant flows and a passage connecting to the low-pressure region are coupled to the heat exchanger.

Abstract: A power amplifier circuit for a corona ignition system is provided. The circuit includes an inductor and capacitor connected to one end of a secondary winding of an RF transformer. The other end of the secondary winding is connected to a current sensor which is connected to ground. The transformer also has a primary winding with one end connected to a voltage supply and the other end attached to a pair of switches. The windings are wound around a core. Current flowing from the DC voltage supply to the switches causes a magnetic flux in the core. A voltage is generated on the secondary winding by the current that flows through the igniter. This voltage is fed back to the switches, controlling on and off timing. Voltage is provided to the corona igniter or pulled from the igniter when the current traveling into or from the igniter is at zero.

Abstract: Engine systems have an air induction system, a turbocharger in fluid communication with an intake manifold, an evacuator defining a Venturi gap with a suction port in fluid communication therewith, a relief valve enclosing a piston and defining an inlet and an outlet in selective fluid communication with one another, and a storage tank of high pressure air in fluid communication with the evacuator. The relief valve has a valve element connected to the piston, and the piston divides the housing into a pressurized chamber in fluid communication with the suction port of the evacuator and a bypass portion in fluid communication with the inlet, which is in fluid communication with the compressed air from the turbocharger, and the outlet, which is in fluid communication with the air induction system or atmosphere. A discharge cone of the evacuator is in fluid communication with atmosphere or the air induction system.

Abstract: An engine assembly includes a crankcase, shaft, blower housing, and cooling fan. The shaft is rotatably coupled to the crankcase and defines a rotational axis. The blower housing includes an internal space. The cooling fan is disposed within the internal space, includes a plate defining an upper surface, and is positioned to rotate with the shaft about the rotational axis. The cooling fan includes a band having an inner band radius and an outer band radius. The cooling fan includes a plurality of reversed fins extending between the band and the upper surface and between a root adjacent to the rotational axis and a tip adjacent to the outer band radius, each fin offset at an angle measured in a counterclockwise direction from a plane passing through the rotational axis and the tip to a plane passing through the root and the tip when viewed from above the cooling fan.

Abstract: A crankshaft having a balance weight, the crankshaft a crank pin eccentric to a rotation axis of the crankshaft, a connecting rod connecting the crank pin and a piston, and a balance weight disposed to be opposite to the crank pin in the crankshaft, wherein the balance weight has radius which is a distance between the rotation axis of a crankshaft and an exterior circumferential surface of the balance weight, and wherein the radius of the balance weight is formed differently depending on a rotation direction of the balance weight.