Abstract: A catalyst apparatus is disposed in an exhaust passage for exhaust gas discharged from an internal combustion engine and includes a catalyst section for purifying the exhaust gas, and a heater section disposed upstream of the catalyst section in the exhaust passage and adapted to heat the exhaust gas. The heater section is configured such that a plurality of metal thin plates and insulators are stacked alternatingly are wound. The heater section contains a pair comprising a positive electrode and a negative electrode for energizing and heating the metal thin plates. The positive and negative electrodes are joined to each of the metal thin plates in such a manner that the positive electrode is located away from the negative electrode in a winding direction of the metal thin plates.

Abstract: An ammonia generation apparatus is disposed in a stage after a urea water injection unit. The ammonia generation apparatus includes a main body which has an introduction opening for introducing exhaust gas, a discharge opening for discharging the exhaust gas, a first flow passage and a second flow passage which communicate with the introduction opening and the discharge opening and which are separated from each other. The ammonia generation apparatus includes a heating unit disposed in the first flow passage, and a first changeover section which is disposed on one side of the main body where the introduction opening is provided and which can switch the exhaust gas flow passage between the first flow passage and the second flow passage.

Abstract: A catalyst apparatus is disposed in an exhaust passage for exhaust gas discharged from an internal combustion engine and includes a catalyst section for purifying the exhaust gas, and a heater section disposed upstream of the catalyst section in the exhaust passage and adapted to heat the exhaust gas. The heater section is configured such that a plurality of metal thin plates and insulators are stacked alternatingly are wound. The heater section contains a pair comprising a positive electrode and a negative electrode for energizing and heating the metal thin plates. The positive and negative electrodes are joined to each of the metal thin plates in such a manner that the positive electrode is located away from the negative electrode in a winding direction of the metal thin plates.

Abstract: A catalyst apparatus is disposed in an exhaust passage for exhaust gas discharged from an internal combustion engine and includes a catalyst section for purifying the exhaust gas, and a heater section disposed upstream of the catalyst section in the exhaust passage and adapted to heat the exhaust gas. The pressure loss of the catalyst section in the flow velocity direction of the exhaust passage is smaller than the pressure loss of the catalyst section in a direction orthogonal to the flow velocity direction, and the heat capacity of the catalyst section is larger than the heat capacity of the heater section.

Abstract: An exhaust gas temperature control apparatus adjusts the temperature of exhaust gas in a stage before an exhaust gas purification unit disposed in an exhaust pipe passage of an internal combustion engine. The exhaust gas temperature control apparatus includes a heat reservoir which can store and radiate heat, a heating member which causes the heat reservoir to store heat, and a temperature control section which controls the temperature of the exhaust gas discharged from the exhaust gas temperature control apparatus by causing the heat reservoir to store heat or radiate heat in accordance with operation state of a vehicle on which the internal combustion engine is mounted.

Abstract: A protector includes an inside protector having an inside peripheral wall and a front end wall in a front end side thereof and a tubular outside protector which surrounds the inside protector. In an outside peripheral wall of the outside protector, a plurality of outside introducing ports through which an external part of the outside protector communicates with a gas separating chamber are formed at equal intervals along a circumferential direction. The outside introducing ports are formed at positions nearer to the front end side than positions where inside introducing ports of the inside protector are formed. The outside introducing ports extend in the circumferential direction of the outside peripheral wall and formed in shapes of lateral holes in which opening lengths in the circumferential direction are larger than opening lengths in the direction perpendicular to the circumferential direction.

Abstract: A particulate collection system collects particulates contained in exhaust gas discharged from an internal combustion engine. The particulate collection system includes a first particulate collection filter; a second particulate collection filter capable of storing or radiating heat; a heating member for heating the second particulate collection filter; and a control section which selectively executes collection of particulates by the first particulate collection filter, collection of particulates by the first particulate collection filter and the second particulate collection filter, and heating of the second particulate collection filter by the heating member.

Abstract: A particulate collection system collects particulates contained in exhaust gas discharged from an internal combustion engine. The particulate collection system includes a first particulate collection filter; a second particulate collection filter capable of storing or radiating heat; a heating member for heating the second particulate collection filter; and a control section which selectively executes collection of particulates by the first particulate collection filter, collection of particulates by the first particulate collection filter and the second particulate collection filter, and heating of the second particulate collection filter by the heating member.

Abstract: A protector includes an inside protector having an inside peripheral wall and a front end wall in a front end side thereof and a tubular outside protector which surrounds the inside protector. In an outside peripheral wall of the outside protector, a plurality of outside introducing ports through which an external part of the outside protector communicates with a gas separating chamber are formed at equal intervals along a circumferential direction. The outside introducing ports are formed at positions nearer to the front end side than positions where inside introducing ports of the inside protector are formed. The outside introducing ports extend in the circumferential direction of the outside peripheral wall and formed in shapes of lateral holes in which opening lengths in the circumferential direction are larger than opening lengths in the direction perpendicular to the circumferential direction.

Abstract: A protector includes an inside protector having an inside peripheral wall and a front end wall in a front end side thereof and a tubular outside protector which surrounds the inside protector. In an outside peripheral wall of the outside protector, a plurality of outside introducing ports through which an external part of the outside protector communicates with a gas separating chamber are formed at equal intervals along a circumferential direction. The outside introducing ports are formed at positions nearer to the front end side than positions where inside introducing ports of the inside protector are formed. The outside introducing ports extend in the circumferential direction of the outside peripheral wall and formed in shapes of lateral holes in which opening lengths in the circumferential direction are larger than opening lengths in the direction perpendicular to the circumferential direction.

Abstract: A particulate collection system collects particulates contained in exhaust gas discharged from an internal combustion engine. The particulate collection system includes a first particulate collection filter; a second particulate collection filter capable of storing or radiating heat; a heating member for heating the second particulate collection filter; and a control section which selectively executes collection of particulates by the first particulate collection filter, collection of particulates by the first particulate collection filter and the second particulate collection filter, and heating of the second particulate collection filter by the heating member.

Abstract: An exhaust gas temperature control apparatus adjusts the temperature of exhaust gas in a stage before an exhaust gas purification unit disposed in an exhaust pipe passage of an internal combustion engine. The exhaust gas temperature control apparatus includes a heat reservoir which can store and radiate heat, a heating member which causes the heat reservoir to store heat, and a temperature control section which controls the temperature of the exhaust gas discharged from the exhaust gas temperature control apparatus by causing the heat reservoir to store heat or radiate heat in accordance with operation state of a vehicle on which the internal combustion engine is mounted.

Abstract: An ammonia generation apparatus is disposed in a stage after a urea water injection unit. The ammonia generation apparatus includes a main body which has an introduction opening for introducing exhaust gas, a discharge opening for discharging the exhaust gas, a first flow passage and a second flow passage which communicate with the introduction opening and the discharge opening and which are separated from each other. The ammonia generation apparatus includes a heating unit disposed in the first flow passage, and a first changeover section which is disposed on one side of the main body where the introduction opening is provided and which can switch the exhaust gas flow passage between the first flow passage and the second flow passage.

Abstract: A gas sensor (1) has an inner protector (120) and an outer protector (110); the inner protector (120) has an inner wall portion (160) having an inner gas inlet (170) for introducing gas to be measured into the interior of the inner protector (120); the outer protector (110) has an outer wall portion (130) having an outer gas inlet (140) for introducing the gas to be measured into the interior of the outer protector (110); a clearance of 1.35 mm or less is provided between the detection portion (11) and at least a portion of the inner wall portion (160); and when the gas sensor (1) is in use, the inner protector (120) is higher in temperature than the outer protector (110).

Abstract: A gas sensor including a detecting element; and a protector having a tube portion surrounding the detecting portion, and a bottom portion the protector having a first opening disposed at the tube portion and a second opening at the bottom portion. The bottom portion includes first and second bottom wall portions, the second bottom wall portion protrudes toward the leading end side, and at least a part of the inner face thereof is located at the leading end side with respect to the outer face of the first bottom wall portion. The second opening is provided on a side opposite the inner space of the tube portion in a communication passage formed by the inner face of the second bottom wall portion, and an opening area of the second opening is larger than an area of the largest imaginary circle that can be placed inside the first opening.

Abstract: A gas sensor (200) includes a gas sensor element (10) extending in an axial direction (O), having a detection portion (11) provided at a front end thereof, and having electrode pads (12a) provided at a rear end thereof; connection terminals (31, 32) electrically connected to the respective electrode pads; and a cover (60, 61) covering the rear end of the gas sensor element and the connection terminals. The cover integrally has a connector portion (63) having an opening (63b) which allows an external connector to be inserted thereinto and removed therefrom in a predetermined direction, and has a connector terminal member (120) which can be inserted into the opening. The connector terminal member has a plurality of connector terminals (70) to be electrically connected to the respective connection terminals, and an insulator (121) integrally molded with the connector terminals. Also disclosed is a method for manufacturing the gas sensor.

Abstract: A gas sensor (200) includes a gas sensor element (10) extending in the direction of an axis O, and a housing (50) made of metal, radially surrounding the gas sensor element, and adapted for inserting at least partially into a sensor-mounting hole (350) of a mounting body (300). The gas sensor (200) further includes a resin member (60, 61) which radially surrounds the housing at least partially and having a contact portion (C) in contact with the housing that is at least partially disposed axially frontward with respect to the outer surface of the mounting body (300) around the sensor-mounting hole, and a heat sink member (80) that is in contact with the housing at an axial position the same as or located frontward of the axial position of the front end of the contact portion.

Abstract: A protector includes an inside protector having an inside peripheral wall and a front end wall in a front end side thereof and a tubular outside protector which surrounds the inside protector. In an outside peripheral wall of the outside protector, a plurality of outside introducing ports through which an external part of the outside protector communicates with a gas separating chamber are formed at equal intervals along a circumferential direction. The outside introducing ports are formed at positions nearer to the front end side than positions where inside introducing ports of the inside protector are formed. The outside introducing ports extend in the circumferential direction of the outside peripheral wall and formed in shapes of lateral holes in which opening lengths in the circumferential direction are larger than opening lengths in the direction perpendicular to the circumferential direction.

Abstract: A gas sensor including a gas sensor element that extends in an axial direction and has a detection section at a front-end side thereof, and an electrode pad at a rear-end side thereof; a connection terminal that is electrically connected to the electrode pad; and an insulated separator that extends along the axial direction and has an inserting hole into which the connection terminal is inserted. An element side section is arranged within the inserting hole and is connected the electrode pad, and an external circuit side section extends further to the outside in a diametrical direction than an outer surface of the separator through one or more first bending sections from the element side section.

Abstract: An intake system for an internal combustion engine includes an intake passage connected with an intake port of the internal combustion engine; an EGR passage merged with the intake passage at a junction portion; a gas sensor attached to the intake passage and configured to detect a concentration of specific gas; and a control section configured to control the internal combustion engine on the basis of an output signal of the gas sensor. A diameter-enlarged portion having an inner diameter larger than an inner diameter of the junction portion is formed at a portion of the intake passage which is located on a downstream side of the junction portion. The gas sensor is located downstream from the diameter-enlarged portion.