An exhaust system device (1) for a vehicle (100) comprises an exhaust purification device (18) and a first exhaust gas recirculation (EGR) cooler (24). The exhaust purification device (18) is disposed with a central axis of a downstream-side end inclined downwardly toward a rear side of the vehicle (100). The EGR cooler (24) is provided so as to introduce exhaust from a downstream side of the exhaust purification device (18), is adjacent to the exhaust purification device (18) and fixed to the exhaust purification device (18), and is disposed such that a central axis of the EGR cooler (24) is inclined downwardly toward the rear side of the vehicle.

An exhaust gas recirculation valve that includes a recirculation passage through which the exhaust gas flows; a valve seat press-fitted onto an inner surface of the recirculation passage; a valve body configured to sit on the valve seat; and a shaft extending through an inside and outside of the recirculation passage and fixed to the valve body and configured to move the valve body relative to the valve seat, in which corrosion-resistant coating is not provided on a portion of the inner surface of the recirculation passage that contacts a peripheral surface of the valve seat, and the corrosion-resistant coating is provided on another portion of the inner surface of the recirculation passage that contacts an end surface of the valve seat in a direction of press-fitting.

An exhaust gas recirculation valve that includes a recirculation passage through which the exhaust gas flows; a valve seat press-fitted onto an inner surface of the recirculation passage; a valve body configured to sit on the valve seat; and a shaft extending through an inside and outside of the recirculation passage and fixed to the valve body and configured to move the valve body relative to the valve seat, in which corrosion-resistant coating is not provided on a portion of the inner surface of the recirculation passage that contacts a peripheral surface of the valve seat, and the corrosion-resistant coating is provided on another portion of the inner surface of the recirculation passage that contacts an end surface of the valve seat in a direction of press-fitting.

Various methods and systems are provided for an exhaust gas recirculation cooler including a plurality of cooling tubes. In one example, an exhaust gas recirculation (EGR) cooler includes a plurality of cooling tubes positioned within a housing of the EGR cooler, each cooling tube of the plurality of cooling tubes extending between and directly coupled to tube sheets of the EGR cooler at ends of each cooling tube, where at least one end of one or more cooling tubes of a first portion of the plurality of cooling tubes, inward of a tube sheet coupled to the at least one end, includes a compliant region, where the first portion is positioned proximate to an exhaust inlet of the EGR cooler.

Various methods and systems are provided for an exhaust gas recirculation cooler including a plurality of cooling tubes. In one example, an exhaust gas recirculation (EGR) cooler includes a plurality of cooling tubes positioned within a housing of the EGR cooler, each cooling tube of the plurality of cooling tubes extending between and directly coupled to tube sheets of the EGR cooler at ends of each cooling tube, where at least one end of one or more cooling tubes of a first portion of the plurality of cooling tubes, inward of a tube sheet coupled to the at least one end, includes a compliant region, where the first portion is positioned proximate to an exhaust inlet of the EGR cooler.

Systems are provided for aligning and assembling an exhaust gas recirculation (EGR) assembly with an engine intake housing. In one example, an intake system may include an EGR port housing for coupling the EGR assembly on an intake housing. The EGR port housing may include one or more alignment tabs on at least one side of the EGR port housing for aligning and guiding the EGR assembly during installation onto the intake housing.

An intake and exhaust device (1) for a vehicle engine is capable to perform a compression self-ignition operation, the device comprising on an intake passage a supercharger (9) driven by a force other than an exhaust gas, wherein an exhaust purification device (18) disposed on an exhaust passage is disposed adjacent to an outer surface of the engine (2).

An EGR cooler in the disclosure includes: a gas path configured to allow an EGR gas to flow; a refrigerant path configured to perform heat exchange between the EGR gas circulating along the gas path and a refrigerant; an exothermic body containing portion configured such that an exothermic body to generate heat by adsorbing a predetermined working gas is contained within the EGR cooler and at least a part of the exothermic body contacts with a wall surface of the gas path; a working gas tank in which the working gas is stored; and a gas moving apparatus configured to move the working gas stored in the working gas tank, from the working gas tank to the exothermic body containing portion.

An exhaust system device (1) for a vehicle (100) comprises an exhaust purification device (18) and a first exhaust gas recreation (EGR) cooler (24). The exhaust purification device (18) is disposed with a central axis of a downstream-side end inclined downwardly toward a rear side of the vehicle (100). The EGR cooler (24) is provided so as to introduce exhaust from a downstream side of the exhaust purification device (18), is adjacent to the exhaust purification device (18) and fixed to the exhaust purification device (18), and is disposed such that a central axis of the EGR cooler (24) is inclined downwardly toward the rear side of the vehicle.

A cooler for a vehicle includes: a cooler housing; tubes disposed inside the cooler housing; cooling pins arranged inside the tubes in a predetermined pattern; and a cup plate attached to both ends of the cooler housing, including a first core material and a first bonding layer bonded at both outer surfaces of the first core material, and having a plurality of slots penetrating the first bonding layer and the first core material in a thickness direction. Each of the tube has an end part penetrating each of the slots and includes a second core material and a second bonding layer that is in contact with an interior surface of the slots, the second bonding layer is in contact with the first bonding layer and the first core material, and the first bonding layer includes a material having a corrosion potential lower than that of the second bonding layer.