Abstract:
Disclosed is an exhaust gas supply pipe for an EGR cooler of a vehicle, and more particularly, to an exhaust gas supply pipe for an EGR cooler of a vehicle, which is capable of improving an initial mounted state through a bellows and also of preventing damage caused by high exhaust heat. To this end, the present invention provides an exhaust gas supply pipe for an EGR cooler of a vehicle, including: a left pipe connected to an exhaust manifold of an engine; a right pipe connected to an EGR cooler; a bellows connecting the left pipe and the right pipe to each other and disposed at an outer periphery of the left pipe; and a heat blocking material filled in a space between the outer periphery of the left pipe and an inner periphery of the bellows.
Abstract:
According to one aspect of the invention, there is provided an intake device for an internal combustion engine, including a gas passage unit defining therein a secondary gas supply passage for supplying a secondary gas to an intake of the engine, and a thermal insulator disposed over at least one side of the gas passage unit so as to thermally insulate the secondary gas supply passage.
Abstract:
In order to reduce fuel consumption and exhaust gas emissions in an internal combustion engine, diesel as well as spark-ignition engines, on the one hand by means of exhaust gas recirculation, but on the other to be able to use temperature-sensitive intake manifolds of economical plastics, a temperature sensor (12) measures the temperature at a definable point in the intake area, preferably in the intake manifold (9) where the highest temperature occurs. The amount of recirculated exhaust gas (1) is set by a control means (8) such that the temperature measured at a definable point does not exceed a definable maximum value, the boundary temperature of the material from which the intake manifold (9) is made, or is adjusted to this maximum value. Alternatively, instead of the temperature being measured in the intake manifold (9) the temperature prevailing there can be computed in a control device (10) or the like which by design is necessary for an internal combustion engine with exhaust gas recirculation by means of a computational model from the n measured values for temperature, pressure and/or speed or the like delivered from the n sensors (11) which by design are necessary for exhaust gas recirculation.
Abstract:
Exhaust gas feeding device for a internal combustion machine for introducing exhaust gas into a suction channel section of an intake manifold through at least one opening, having an exhaust gas feed section, an exhaust gas feedback valve and an exhaust gas introduction plate that forms a annular channel in the wall region of the suction channel section, wherein the exhaust gas introduction plate is designed as a stamped part with formable webs in such a manner that the webs define a ring channel annular channel with openings in the built-in state of the exhaust gas introduction plate.
Abstract:
According to one aspect of the invention, there is provided an intake device for an internal combustion engine, including a gas passage unit defining therein a secondary gas supply passage for supplying a secondary gas to an intake of the engine, and a thermal insulator disposed over at least one side of the gas passage unit so as to thermally insulate the secondary gas supply passage.
Abstract:
To protect a plastic intake manifold of an internal combstion engine from heat possessed by exhaust gas recirculation gas, a cooling device is arranged between the plastic intake manifold and an exhaust gas recirculation valve. The cooling device cools the exhaust gas recirculation gas by means of a coolant. A gas discharge part of the cooling device constitutes a pipe portion which penetrates through an exhaust gas inlet hole of the intake manifold keeping a given space between an outer wall of the pipe portion and an inner wall of the exhaust gas inlet hole. The pipe portion may be a leading end portion of an exhaust gas recirculation pipe extending from an exhaust system of the engine.
Abstract:
The invention relates to an apparatus of an exhaust gas recirculation valve for an internal combustion engine for preventing the thermal effect on an intake manifold due to high temperature of recirculated exhaust gas. The apparatus of EGR valve is comprised of an exhaust gas recirculation valve consisting of a body and an adapter having a second flange which causes the body to be attached on a first flange of the intake manifold. A gap of 3 mm to 5 mm separates a first border of the first flange from a second border of the adapter.
Abstract:
A heat blocking member is fixed to a part of an engine in order to protect a signal wire or the like situated nearby from heat generated by the exhaust recirculation device. The exhaust recirculation device comprises an exhaust recirculation passage connecting an intake passage and an exhaust passage of the engine, a valve for opening and closing the exhaust recirculation passage and a drive mechanism for opening the valve. The valve is normally closed. By forming a specific part of the drive mechanism in a one-piece construction In with the heat blocking member, exhaust recirculation is prevented from taking place when the heat blocking member is not attached.
Abstract:
A connection between a building component in the form of a pipe, a mounting part, a housing or the like and a pipe-shaped line element of metal. The building component has an essentially radially extending, ring-shaped contact surface, against which a ring-shaped collar arranged on the line element is tensioned by fastening means that grip behind the collar. In the region between its inside and outside diameter, the collar has at least one axial thickening that extends ring-shaped around the axis for the line element, and that the thickening is produced by axially compressing at least one radially outward extending and at least one radially inward extending annular undulation, arranged adjacent in axial direction, of the wall that forms the collar.
Abstract:
A system includes an exhaust gas an exhaust gas recirculation (EGR) mixer which includes a housing and a first passage in the housing. The first passage may be configured to supply an EGR flow into the housing. The system further includes a second passage in the housing, such that the second passage is disposed about the first passage. The second passage is configured to supply at least one fluid flow into the housing. The system also includes a region downstream from the first and second passages, and a fluid outlet downstream from the region.