Abstract: An exhaust device for an engine is disposed beneath a loading platform at a position rearwardly of a seat of a utility vehicle. A plurality of exhaust pipes extend rearwardly from a front surface of an engine main body by way of one lateral side of the engine main body. The plurality of the exhaust pipes are collected by a single collecting tube. An exhaust conduit extends from the collecting tube in a direction rearwardly of the engine. A muffler is disposed in a rear portion of the vehicle and fluid connected with a downstream end of the exhaust conduit. The exhaust pipes, the collecting tube and the exhaust conduit are covered by a covering. The covering is fitted to the exhaust pipes and the exhaust conduit to thereby suppress a heat conduction from the exhaust pipes, the collecting tube and the exhaust conduit.

Abstract: A motor rotor is configured to include a tubular inner sleeve, an annular magnet mounted on the outside of the inner sleeve in a radial direction of the inner sleeve, and a ring member disposed on the outside of the magnet in an axial direction of the inner sleeve and mounted on the outside of the inner sleeve in the radial direction of the inner sleeve. A linear expansion coefficient of the inner sleeve is higher than the linear expansion coefficient of the magnet. The ring member is mounted on the inner sleeve by shrinkage-fitting, and a gap is provided between the ring member and the magnet in the axial direction of the inner sleeve.

Abstract: An electric turbocharger includes an electric motor which rotationally drives a rotating blade, a motor housing which accommodates the electric motor therein, a controller which is disposed outside the motor housing and controls the driving of the electric motor, and a power supply mechanism which supplies a current from the controller to the electric motor through a through-hole communicating the inside and the outside of the motor housing, in which the power supply mechanism includes a rod which is hermetically sealed while being inserted through the through-hole, a connector which is connected to at least one end of the rod, and a busbar which is connected to the connector, and in which the connector absorbs a relative positional displacement of the rod with respect to the connector.

Abstract: An exhaust gas purification system, which includes an engine and an exhaust pipe that is connected to an exhaust manifold of the engine, includes: a catalyst converter disposed at a rear side the engine on the exhaust pipe; a selective catalytic reduction on diesel particulate filter (SDPF) disposed at a rear side of the catalyst converter on the exhaust pipe; a reducing agent injector disposed between the catalyst converter and the SDPF on the exhaust pipe and injecting a reducing agent; and a controller controlling an amount of the reducing agent injected from the reducing agent injector.

Abstract: A process for optimizing the consumption of reducing agent in the form of ammonia in an exhaust line including first and second selective catalytic reduction systems, the second system being arranged downstream of the first system, being spaced apart by a spacing, a surplus of unused ammonia passing via the exhaust line, the temperature in the exhaust line at the second system being measured or estimated. When the temperature at the second system exceeds a first maximum value, or when a calculated rate of temperature rise is greater than a predetermined rate of rise, with the proviso that the temperature at the second system is greater than a second maximum value that is less than the first maximum value, forced cooling is carried out in the spacing between the first and second systems.

Abstract: An engine control device controls an engine. The engine includes a turbocharger, a waste gate valve, and a throttle. In a predetermined low load region, the engine control device performs first control in which the waste gate valve is opened at a predetermined opening degree or more and output adjustment is performed by an opening degree of the throttle. In a predetermined high load region, the engine control device performs second control in which the throttle is opened at a predetermined opening degree or more and output adjustment is performed by an opening degree of the waste gate valve. When a torque limiting request is generated in the high load region, the engine control device performs third control in which the waste gate valve is substantially fully closed and output adjustment is performed by the opening degree of the throttle.

Abstract: A dual, dual-pass intercooler assembly for an intercooler supercharger system comprising an intercooler lid mountable to a supercharger housing; a pair of intercooler cores coupled mountable to and within at least one of the intercooler lid and the supercharger housing; wherein the pair of intercooler cores configured to receive and cool supercharger air upon a first pass through the pair of intercooler cores and receive and further cool the supercharger air upon a second pass through the pair of intercooler cores prior to receipt by an engine.

Abstract: A chiller system includes an intercooler configured to cool compressed charge air received from a charger, a low temperature cooling circuit fluidly coupled to the intercooler, and an air conditioner circuit circulating a refrigerant and having a primary circuit and a bypass circuit. The primary circuit includes a compressor, a condenser, and an evaporator. The bypass circuit includes a conduit that bypasses the evaporator, and a chiller shut off valve is configured to selectively prevent refrigerant from flowing through the bypass circuit. A chiller is thermally coupled to the low temperature cooling circuit and the bypass circuit. A controller is in signal communication with the chiller shut off valve. The controller is programmed to, upon receiving a signal indicating a driver has manually selected the vehicle to operate in a racing mode, open the chiller shut off valve to provide increased cooling to the intercooler and the compressed charge air.

Abstract: The present invention provides a turbocharger including: a rotating shaft; a turbine wheel; a compressor wheel; a rolling bearing including an inner race fixed to an outer circumferential surface of the rotating shaft, an outer race surrounding the inner race from the outside in a radial direction, and rolling bodies arranged between the inner and outer races and that supports the rotating shaft to be rotatable about an axis; a housing that covers the rolling bearing from an outer circumferential side via a gap between the housing and an outer circumferential surface of the rolling bearing; and a lubricant supply line configured to supply a lubricant into the housing. The turbocharger includes an operating state detection unit that detects an operating state of the turbocharger and a lubricant regulating unit configured to regulate the flow rate of the lubricant flowing through the lubricant supply line depending on the operating state.

Abstract: Provided is a GPF capable of exhibiting better than conventional three-way purification function. A gasoline particulate filter (GPF) that is provided in an exhaust pipe of an engine and that performs purification by capturing particulate matter (PM) in exhaust gas is provided with a filter substrate in which a plurality of cells extending from an exhaust gas inflow-side end face to an outflow-side end face are defined by porous partition walls and in which openings at the inflow-side end face and openings at the outflow-side end face of the cells are alternately sealed; and a three-way catalyst (TWC) supported by the partition wall. The three-way catalyst is the GPF comprising a catalytic metal containing at least Rh, and a composite oxide having an oxygen storage capacity and containing Nd and Pr in a crystal structure.

Abstract: A cooling device for a motor vehicle may include: a liquid-cooled turbocharger arranged on an internal combustion engine; a coolant feed line; a coolant discharge line; and a heat exchanger arranged at least partially within an oil container. The coolant discharge line is connected by an oil preheating line to the heat exchanger.

Abstract: An exhaust gas guide section for an exhaust gas turbocharger includes an actuator (1) with a wastegate (9) for opening and closing a bypass channel (31) of the exhaust gas guide section (1), wherein the bypass channel (31) is provided in the exhaust gas guide section (1) that can be flowed through to bypass a turbine wheel of the exhaust gas guide section (1) which is rotatably arranged in the exhaust gas guide section (1) in a wheel chamber of the exhaust gas guide section (1), and wherein the bypass channel (31) has a second flow cross section (33).

Abstract: Methods and systems are provided for determining a dilution of recirculated gases, including blowthrough air, combusted exhaust gas, and fuel vapor, in a split exhaust engine. In one example, the dilution rate may be calculated using a steady state model based on temperature measurements from an intake region of the engine. The steady state model may be further used in combination with a feedforward model adapted to estimate engine dilution during engine transients as a correction factor.

Abstract: A controlling method of exhaust gas purification system to which a lean combustion engine is applied and an LNT device, a DPF or an SDPF, and an SCR device are provided includes detecting vehicle information and determining whether the vehicle information satisfies nitrogen oxide desorption condition of the LNT device; desorbing the nitrogen oxide until the nitrogen oxide of the LNT reaches predetermined reference amount through engine rich combustion when vehicle information satisfies the nitrogen oxide desorption condition of the LNT device; injecting urea to purify the nitrogen oxide after a first period after ending of desorption of the nitrogen oxide of the LNT; desorbing sulfide of the LNT through the engine rich combustion; and injecting urea to purify the nitrogen oxide after a second period after ending of desorption of the sulfide rich combustion of the LNT.

Abstract: A dual, dual-pass intercooler assembly for an intercooler supercharger system comprising an intercooler lid mountable to a supercharger housing; a pair of intercooler cores coupled mountable to and within at least one of the intercooler lid and the supercharger housing; wherein the pair of intercooler cores configured to receive and cool supercharger air upon a first pass through the pair of intercooler cores and receive and further cool the supercharger air upon a second pass through the pair of intercooler cores prior to receipt by an engine.

Abstract: A controller estimates a first estimated adsorption amount which is an amount of adsorption of ammonia in the SCR catalyst at the time when the SCR catalyst is assumed to be in a predetermined abnormal state, estimates a second estimated adsorption amount at the time when the SCR catalyst is assumed to be in a predetermined normal state, calculates a first slip development temperature based on the first estimated adsorption amount, and calculates a second slip development temperature based on the second estimated adsorption amount. The controller, when carrying out an abnormality diagnosis based on a concentration of ammonia in an exhaust gas at the downstream side of the SCR catalyst, carries out diagnostic temperature control so as to control the temperature of the SCR catalyst to a temperature which is equal to or more than the first slip development temperature and is less than the second slip development temperature.

Abstract: A common rail comprises a shell and a pressure detection apparatus and a pressure adjustment apparatus that are installed on the shell. The shell comprises an inlet passage, an outlet passage, at least one conveyance port that is connected to the inlet passage, and at least one flow return port that is connected to the outlet passage. The pressure detection apparatus is connected to the inlet passage. The pressure adjustment apparatus is connected between the inlet passage and the outlet passage. The pressure adjustment apparatus can connect or disconnect the inlet passage and the outlet passage. Also disclosed is a carbamide spraying system having such a common rail. Because a carbamide solution returned from a nozzle is first gathered inside the common rail and then returns to a carbamide tank through the outlet passage and a return flow pipe, the length of the return flow pipe is reduced.

Abstract: Methods and systems are provided for an aftertreatment system arranged in a vehicle underbody downstream of close-coupled aftertreatment devices, the aftertreatment system including a first aftertreatment device and a second aftertreatment device adjacent one another. In one example, the first aftertreatment device is a hydrocarbon trap and the second aftertreatment device is a three-way catalyst.

Abstract: A dosing module includes: a frame assembly comprising a plurality of panels; a first manifold configured to separately receive reductant and air and including: a first connector, and a second connector; and a dosing tray including: a base panel, a second manifold configured to separately receive the air and the reductant and provide the air and the reductant back to the first manifold, a third connector selectively coupled to the first connector, and a fourth connector selectively coupled to the second connector. When the third connector is coupled to the first connector and the fourth connector is coupled to the second connector, the reductant or air is routed to the first connector, from the first connector to the third connector, from the third connector to the fourth connector, from the fourth connector to the second connector, and from the second connector outside of the dosing module.

Abstract: An apparatus comprises an engine, an exhaust manifold fluidly coupled thereto, and an auxiliary system positioned downstream of and fluidly coupled to the exhaust manifold. A slip joint assembly fluidly couples the exhaust manifold to the auxiliary system and includes a slip joint male portion fluidly coupled to the exhaust manifold which includes a plurality of lobes positioned on an outer surface of the male portion. The male portion defines a first passageway in fluidic communication with the exhaust manifold. The assembly also includes a slip joint female portion fluidly coupled to the auxiliary system and including a second passageway. The male portion is insertable into the female portion for fluidly coupling the male portion to the female portion. Only the plurality of lobes contact an inner surface of the second passageway. Moreover, the male portion is axially slidable within the second passageway while maintaining the fluid coupling therebetween.