A fuel injector for an exhaust heater includes a cover and an air blast nozzle. The cover has a nozzle seat, a fuel inlet, and an air inlet, the nozzle seat arranged along a flow axis. The air blast nozzle is seated in the nozzle seat and has a unibody. The air blast nozzle unibody is in fluid communication with the fuel inlet and the air inlet arranged along the flow axis to port fuel and air into a combustion volume, e.g., to heat a stream of exhaust gas flowing between an engine and a catalytic reactor by combustion with fuel introduced through the fuel inlet and air introduced through the air inlet.

A high-strength ferritic stainless steel for clamp includes, in percent (%) by weight of the entire composition, C: 0.04 to 0.1%, Si: 0.2 to 0.6%, Mn: 0.01 to 1.5%, Cr: 14.0 to 18.0%, Al: 0.005 to 0.2%, V: 0.005 to 0.2%, N: 0.02 to 0.1%, the remainder of iron (Fe) and other inevitable impurities, and satisfies following formulas (1) and (2), and the number of precipitates with an average diameter of 0.5 μm or less is 2.5×10.sup.6 pieces/mid or more: (1) 0.35%≤Si+Al+V≤0.6% and (2) 0.09%≤C+N≤0.12%.

Provided is an exhaust system for an engine in which a fastening force of a fastener hardly decreases. An exhaust system for an engine includes: an exhaust passage component of ferrous metal; and a fastener that fastens the exhaust passage component to other parts, the exhaust passage component including a pressure receiving surface that receives a fastening force of the fastener. The oxide film of triiron tetraoxide is formed on the pressure receiving surface of the exhaust passage component. It is preferable that the oxide film of triiron tetraoxide be also formed on an outer surface other than the pressure receiving surface of the exhaust passage component. It is preferable that the oxide film of triiron tetraoxide be also formed on an inner surface of the exhaust passage component.

A structure is provided for installing a pipe fixing clamp installed in a sound absorber. A part of a curved pipe portion of an internal structural pipe of the sound absorber is cut to form an exhaust gas flow space. The pipe fixing clamp having multiple holes is connected to the exhaust gas flow space.

An exhaust system for a vehicle including a deep snow exhaust outlet defined by a driveline structural member of the vehicle. If the vehicle includes a turbo charger and an exhaust silencer, the turbocharger and the exhaust silencer are coupled together without exhaust piping therebetween.

An engine has an ATD that purifies exhaust gas. The engine is provided with an engine body, a support base, a front-side support bracket, and a rear-side support bracket. The support base supports an exhaust gas purification device. The front-side support bracket is mounted to the engine body and is disposed on one side of the engine body, and supports the support base. The rear-side support bracket is mounted to the engine body and is disposed on a side opposite to the front-side support bracket with the engine body therebetween, and supports the support base. The front-side support bracket has a vertically-mounted boss mounted in the vertical direction with respect to the support base. The rear-side support bracket has a horizontally-mounted boss mounted in the horizontal direction with respect to the support base.

An engine is provided with an engine body, a crankshaft, a cooling fan, an exhaust manifold, a supercharger, an ATD that purifies exhaust gas, and a second exhaust pipe. When the height direction of the engine is defined as a first direction, the crankshaft extends in a second direction vertical to the first direction. The cooling fan is disposed on one side of the engine body in the second direction. The supercharger is driven by the exhaust gas from the exhaust manifold. The second exhaust pipe connects the supercharger and the ATD. The ATD is disposed in an attitude in which the longitudinal direction thereof is parallel to the second direction. The second exhaust pipe is connected to the cooling fan side of the ATD in the second direction. The second exhaust pipe is disposed so as to pass laterally with respect to the exhaust manifold and below the supercharger.

A support for an exhaust stack comprises a first bracket including a first base joining a first extension and a second extension, the first base being fixed to the vehicle, and a second bracket including a second base joining a third extension and a fourth extension, the second base being fixed to the exhaust stack. A member is disposed between the first base and the second base. The member has a first end and a second end. A first fastener is accepted by the first end and extends between the first extension and the second extension. A second fastener is accepted by the second end and extends between the third extension and the fourth extension.

An exhaust treatment component may be mounted in brackets, each bracket having a clamping surface which in a use orientation is arranged in parallel with a corresponding mounting surface of a fixed mount, the mounting surfaces defining adjustment planes which are spaced apart along a length axis of the mount. Each bracket may be adjusted independently in its use orientation to define a variable clamping position in the adjustment plane. In another aspect, the component may be mounted in one or more brackets, each bracket comprising curved contact surface, each surface being defined by an arc of a respective circle, each arc being contained in the circle of the other respective arc, whereby the centre points of the respective circles are spaced apart in the reference plane so that each arc is contained in the circle of the other respective arc. The component can be clamped to the bracket irrespective of its diameter.

The present invention relates to an improved turbocharger assembly, particularly of the variable geometry type. The improved turbocharge assembly contains a turbine. The turbine includes an impeller housed in a casing, a flange that can be sealingly associated with a corresponding flange of an exhaust gas manifold of an engine, and a clapet valve that contains a shutter element and a housing seat. The housing seat is fashioned in a frame made in one piece with the casing.