An engine system is provided that uses lubrication oil that forms water-soluble ash when combusted. The engine system comprises an internal combustion engine lubricated by the lubrication oil; an exhaust gas system for cleaning exhaust gases from the internal combustion engine, the exhaust gas system comprising a diesel particulate filter to capture particulate matter from the exhaust gases, wherein the particulate matter comprises the water-soluble ash; an exhaust gas conduit to lead exhaust gases from the internal combustion engine to the exhaust gas system; and condensation means to accumulate condensed water and/or to form an increased amount of condensed water and arranged in fluid connection with the exhaust gas flow upstream of the diesel particulate filter. The exhaust gas conduit is arranged to collect condensed water and lead the condensed water through the diesel particulate filter, thereby dissolving and thus removing the water-soluble ash from the diesel particulate filter.

A condensate separator for separating condensate from a gas stream, the condensate separator may include a housing having a condensate drain at a bottom end, a swirl generator provided at an inlet end of the housing, the swirl generator placing the gas stream in a rotational movement, and an impact element situated downstream from the swirl generator.

A system includes an engine and an exhaust conduit in communication with the engine. A water separation device has exhaust gas passageways in communication with the exhaust conduit. The water separation device has a substrate and a membrane on the substrate. The substrate is monolithic and extends around the exhaust gas passageways. The membrane is between the exhaust gas passageways and the substrate and has capillary condensation pores extending from the exhaust gas passageways to the substrate.

To shorten a time period of a catalyst heating without increasing the cost largely. A catalyst heating system 1 for heating a catalyst provided at an exhaust passage 5 of a vehicle, the system comprises a purifying catalyst 6 provided in the exhaust passage 5, a water storage part 2 provided at an upstream of the purifying catalyst 6 in the exhaust passage 5 and along a bottom side of the exhaust passage 5, an upper part of the water storage part 2 being opened to the exhaust passage 5, an electromagnetic wave emitter 3 arranged above the water storage part 2 and configured to emit an electromagnetic wave to moisture stored inside the water storage part 2, thereby heating up the moisture and generating water vapor therefrom, and a controller 4 configured to control the electromagnetic wave emitter 3, and the controller 4 controls the electromagnetic wave emitter 3 to emit the electromagnetic wave for a predetermined time period when an engine of the vehicle starts to run.

An arrangement for treating exhaust gases of an internal combustion piston engine in a marine vessel, includes an exhaust gas channel coupled at its first end to the engine and having its second end opening to the environment, and a scrubber unit arranged between the first end and the second end of the exhaust gas channel. The arrangement has an exhaust gas channel cleaning system arranged to apply cleaning liquid on inner surface of the exhaust gas channel to a portion of the exhaust gas channel between the scrubber unit and the second end of the exhaust gas channel.

A control system of an engine including a cylinder, an intake passage, and an exhaust passage is provided, that includes a fuel injector for injecting fuel into the cylinder, an exhaust gas recirculation (EGR) passage communicating the intake passage with the exhaust passage and for recirculating, as EGR gas, a portion of exhaust gas in the exhaust passage back to the cylinder, an EGR valve capable of controlling an EGR ratio by changing an EGR gas amount recirculated to the cylinder, a water injector for injecting water into the cylinder, and a controller. The controller controls the EGR valve to set a target EGR ratio according to an engine operating state so as to bring an actual EGR ratio to the target EGR ratio, and when the target EGR ratio is increased, the controller controls the water injector to increase an amount of the water injected into the cylinder.

Provided is a vehicle control apparatus for controlling a vehicle including an internal combustion engine and an own-vehicle position detection device. The internal combustion engine includes a plurality of cylinders arranged so as to be aligned along the width direction of the vehicle, and an EGR device equipped with an EGR channel configured to connect an exhaust channel with a portion of an intake channel located on the upstream side of a branch portion to the plurality of cylinders. The vehicle control apparatus includes a controller programmed, when a condensed water occurrence condition is met and when predicting turning of the vehicle based on information from the own-vehicle position detection device, to execute a misfire countermeasure process to reduce or avoid misfire, for at least a cylinder located outermost during the turning among the plurality of cylinders, during at least a part of time of the turning.

An exhaust system for an internal combustion engine is connected to an outlet of the internal combustion engine and has a particulate filter. A differential pressure line for ascertaining the particulate filter load connects a section of the exhaust passage upstream from the particulate filter and a section of the exhaust passage downstream from the particulate filter to a differential pressure sensor. At an end of the differential pressure line facing the exhaust passage, a reservoir which serves to collect condensate protrudes into the exhaust passage and can be heated up by the exhaust gas in the exhaust passage. Due to the heating of the reservoir, the liquid that has collected in the reservoir evaporates and can be introduced in gaseous form into the exhaust passage through an opening in the reservoir, so that the risk of droplet formation in the exhaust passage is avoided.

There is provided an engine control device including (1) a regulator that regulates a flow rate per unit of time of exhaust gas discharged from an engine, and (2) a controller that, in cases in which an external temperature detection section detects an external temperature below freezing point, and a previous engine operation duration is shorter than a predetermined first duration, controls the regulator such that the flow rate rises to exceed a predetermined normal state, until a predetermined second duration has elapsed since the engine was started up.

An engine system for exhausting condensate water includes an intake line into which fresh air flows, an engine including a plurality of cylinders for generating driving torque by burning fuel, an exhaust line in which exhaust gas exhausted from the cylinders flows, a low-pressure exhaust gas recirculation system (LP-EGR) through which the exhaust gas flowing through the exhaust line is resupplied to the cylinder, and a turbocharger including a turbine rotated by the exhaust gas exhausted from the cylinder, a compressor for compressing external air and exhaust gas recirculation (EGR) gas by being rotated together with the turbine, and an exhaust pipe for exhausting condensate water to the outside, wherein the condensate water generated by the external air flows through the intake line and the EGR gas is recirculated by the LP-EGR.