Abstract: An aftertreatment system includes an exhaust reductant tank configured to store an exhaust reductant. A filter is fluidically coupled to the exhaust reductant tank. The aftertreatment system includes a hydrocarbon detection device configured to indicate the presence of a hydrocarbon in the exhaust reductant. A catalyst is included in the system and configured to treat the exhaust reductant flowing through the system. The hydrocarbon detection device can include a hydrophobic paper, and can be disposed in the filter.

Abstract: An exhaust manifold includes first and second plate members fixed to an inlet of a junction pipe at which exhaust gases from exhaust pipes join together. The first and second plate members are combined with each other so as to partition the inlet for each of the exhaust pipes. The first plate member includes a slit into which the second plate member is inserted. A width of the slit is greater than a plate thickness of the second plate member. The first plate member is provided with first and second contact portions. The first and second contact portions respectively protrude from opposite sides of the slit in a width direction of the slit and contact with the second plate member inserted into the slit.

Abstract: Examples include an exhaust manifold assembly for an internal combustion engine, the exhaust manifold assembly optionally including: an inner housing configured to receive an exhaust gas from a cylinder head of the internal combustion engine; an outer housing receiving at least a portion of the inner housing, wherein the outer housing is configured to receive a coolant flow that passes over the at least the portion of the inner housing; and a plurality of manifold flanges coupled to the outer housing and configured to mount on the cylinder head, wherein at least one of the plurality of manifold flanges has a sleeve portion forming a passage that receives a part of the inner housing therein and receives the coolant flow.

Abstract: An exhaust gas tailpipe assembly for an exhaust gas system of a motor vehicle, having at least one exhaust gas tailpipe, which is annularly surrounded by a tailpipe aperture assembly at an end facing away from the exhaust gas system. The tailpipe aperture assembly is at least partially fixedly connected to a body part of the motor vehicle and includes at least one aperture part, such that the tailpipe aperture assembly can be slid, when viewed longitudinally, onto the exhaust gas tailpipe in a crash event. The exhaust gas tailpipe is configured so as to be curved with at least two exhaust gas tailpipe parts, wherein a longitudinal axis of a second exhaust gas tailpipe part extends at an angle to a longitudinal axis of a first exhaust gas tailpipe part. The aperture part includes at least one deformation region in a circumferential region facing the exhaust gas tailpipe.

Abstract: An impeller for heat dissipation fan includes a hub and blades, the blades are arranged around the hub. An inlet side and an outlet side, in an axial direction of the impeller, the inlet side is defined at an end of the impeller, the outlet side is defined at another end of the impeller. Each of the blades comprises a windward surface and a leeward surface opposite to the windward surface, the side of the blade back from the hub is an outer edge, and the side of the blade corresponding to the inlet side is a front edge, a first connection region is connected between the outer edge and the front edge, and the first connection region is arc-shaped where the windward surface connected to the leeward surface.

Abstract: Synchronized Induction & Discharge Flows (SIDF) for a rotary lobe blower (pump) or vacuum pump reduce flow pulsations, noise, vibration, harshness (NVH) and improve blower efficiency. Generally, a rotary lobe blower (pump) or vacuum pump with a SIDF has a pair of mechanically synchronized multi-lobe rotors with the same number of lobes housed in a well of a casing wall with an off-center suction port and discharge port. The fluid being trapped by adjacent lobes of each of the rotors and the walls along two flanks of the walls of the well are synchronized wherein the suction port and the discharge port have each an axis that are parallel with each other; the suction port axis and the discharge port axis being offset with each other; wherein the offset provides simultaneous fluid inducting for the two flanks at the suction port and simultaneous fluid back filling and discharging for the two flanks at the discharge port respectively.

Abstract: Apparatus, devices and methods including apparatus for aftertreatment for a diesel engine, optionally including: a housing having an inlet, an outlet and defining a cavity therein; a plurality of tubes mounted within the cavity and arranged to define a multi-flow split arrangement to pass an exhaust flow of the diesel engine through each of the plurality of tubes; and a plurality of treatment units configured to treat the exhaust flow within the housing, wherein each of the plurality of treatment units is coupled within a corresponding one of the plurality of tubes to receive a portion of the exhaust flow. A number of the plurality of treatment units utilized to treat the exhaust flow within the housing is less than a number of the plurality of tubes such that at least one of the plurality of tubes does not contain one of the plurality of treatment units.

Abstract: A method for self-balancing of a lambda sensor (18, 20, 26) is provided. The method measures pumping current (Ip) and pumping voltage (Up) of the lambda sensor (18, 20, 26), and checks whether the measured pumping current (Ip) and the measured pumping voltage (Up) lie within a specified tolerance range (33). If values lie outside the tolerance range (33) of the characteristic curve specification, an adjustment of the lambda value (?) occurs with the aid of the pumping voltage (Up) of the lambda sensor (18, 20, 26), and, in a substantially adjusted state, a further pumping current (Ip) of the lambda sensor (18, 20, 26) is measured and the pumping current offset (32) is derived from the further pumping current (Up). Thus, precise self-balancing of the lambda sensor (18, 20, 26) is carried out, thereby enabling a good exhaust gas after-treatment.

Abstract: An exhaust gas treatment system including: an internal combustion engine comprising an exhaust gas outlet; a first three way catalyst downstream of the exhaust gas outlet, wherein the first three way catalyst receives an exhaust output from the exhaust gas outlet; a hydrocarbon trap downstream of the first three way catalyst, wherein the hydrocarbon trap receives an exhaust output from the first three way catalyst; an exhaust heating unit downstream of the hydrocarbon trap, wherein the exhaust heating unit receives an exhaust output from the hydrocarbon trap; and a second three way catalyst downstream of the exhaust heating unit, wherein the second three way catalyst receives an exhaust output from the heating unit, wherein an air injection port is configured to selectively deliver a stream of air upstream of the hydrocarbon trap and downstream of the first three way catalyst.

Abstract: A heating device for an exhaust system of an internal combustion engine and having: a main tubular body, which contains a combustion chamber delimited by a first base wall and by a second base wall, which are opposite one another; a fuel injector configured to inject fuel; an inlet opening, which can be connected to a fan to receive an air flow, which is directed to the combustion chamber and gets mixed with fuel; a secondary tubular body which is arranged inside the main tubular body and inside the combustion chamber and has a side wall, which is arranged at a given distance from the side wall of the main tubular body so as to divide an initial part of the combustion chamber into a central zone, which is located inside the secondary tubular body, and an annular peripheral zone, which is located around the secondary tubular body.

Abstract: A compressor may comprise: a first fluid channel provided to communicate with an oil supply fluid channel so as to allow oil to flow therethrough; a second fluid channel provided to extend from the first fluid channel so as to allow the oil to flow to the outside of a case; a third fluid channel extending from the second fluid channel and provided outside the case; and a main fluid channel extending from the third fluid channel and provided through a fixed scroll or a main frame. Accordingly, the oil is supplied to a compression part by passing along the outside of the case, so that oil can be effectively supplied when a high-pressure operation is performed. Moreover, the present invention may not have a facility such as a pressure reduction pin, so that oil can be effectively supplied when a low-pressure operation is performed.

Abstract: A method (200) for diagnosing the functionality of a burner (100), comprising: determining a lambda value (210) of an exhaust gas of the burner (100), comparing (220) the determined lambda value to a time-based changing lambda threshold (225), and detecting a malfunction (280) when the determined lambda value exceeds the time-based changing lambda threshold (225). Furthermore, a computing unit and a computer program for carrying out such a method (200) are proposed.

Abstract: The invention is an anti-theft covering system that can surround an object and make cutting that object inefficient and time consuming. Using flexible, durable, high-heat resistant outer covering and hardened, stranded, metal cabling segments, oriented parallel to one another, and inside the outer covering, the invention makes cutting through it and whatever it covers both inefficient and time consuming.

Abstract: A bowed rotor prevention system includes a gas turbine engine, and electric motor, and a core turning controller. The gas turbine engine includes a rotor that is rotatably coupled to a drive shaft. The electric motor is rotatably coupled to a motor shaft, which is mechanically coupled to the drive shaft so as to rotate therewith. The core turning controller in signal communication with the electric motor. The core turning controller determines whether a rotor bow is present in the rotor based on an operating time of the gas turbine engine, determines a motoring time based on the operating time, and invokes an anti-rotor bowing mode configured to control the electric motor to rotate the rotor according to the motor time.

Abstract: A method for operating an exhaust gas cleaning device for a motor vehicle, the exhaust gas cleaning device has a vehicle catalytic converter, a first lambda probe arranged upstream of the vehicle catalytic converter, and a second lambda probe arranged downstream of the vehicle catalytic converter. A signal gradient is determined chronologically between a first signal jump of a measured value of the first lambda probe and a second signal jump of the measured value in a second direction opposite to the first direction, and a signal delay of a measured value of the second lambda probe is determined after the second signal jump.

Abstract: Disclosed is a screw compressor (100), comprising a screw compressor housing (101), a discharge cavity (113), at least one silencing channel, and at least one adjustment piston, wherein the discharge cavity (113) is defined by at least one part of the screw compressor housing (101); the at least one part of the screw compressor housing (101) defining the discharge cavity (113) forms a wall of the discharge cavity (113); at least one hole is provided in the wall of the discharge cavity (113); the at least one adjustment piston can be inserted into the at least one hole and move therein; the at least one silencing channel is formed by the at least one hole and the at least one adjustment piston, and the at least one silencing channel is in fluid communication with the discharge cavity (113); and the position of the at least one adjustment piston in the at least one hole determines the silencing length of the at least one silencing channel.

Abstract: A hydro-active scrubber and reactor (HSR) system and apparatus is disclosed that includes a main body, an inlet configured to receive a first fluid medium comprised of pollutant particles, and a nozzle configured to dispense a second fluid medium within the main body. In addition, the HSR system and apparatus may also include a cylindrical body or hydro-vortex generator within the main body having a plurality of horizontally positioned rods projecting therefrom, wherein the cylindrical body further comprises a plurality of openings. Further, the HSR system and apparatus can include a motor configured to rotate the cylindrical body thereby directing the first and second fluid mediums through the cylindrical body. In addition, a first area within the main body can receive the pollutant particles from the first fluid medium, and a first outlet within the main body can be configured to direct the received pollutant particles out of the main body.

Abstract: An exhaust purifying apparatus includes an exhaust manifold, a cylindrical catalytic converter, and a cylindrical connection portion that connects the catalytic converter to the exhaust manifold. The exhaust manifold is connected to a side surface of the connection portion. The connection portion is connected to the catalytic converter so as to have the same central axis as the catalytic converter. The connection portion includes a constriction at a part connected to the catalytic converter. A part of the connection portion on an upstream side of the constriction defines a collision diffusion chamber. The cross-sectional flow area of the connection portion orthogonal to the central axis is smaller at the constriction than in the collision diffusion chamber. The constriction is not provided in a vertically lower part of the inner wall of the connection portion in a mounted state of the internal combustion engine.

Abstract: Provided is a transmission exhaust system for a utility vehicle. The utility vehicle may include a power source compartment which houses, among other components, a power source, a power source exhaust system, a transmission within a transmission enclosure, and a transmission exhaust duct. The power source compartment may have a first end and a second end. The power source exhaust may exit the power source at or near the first end of the power source compartment. The transmission exhaust duct may allow transmission exhaust to leave the transmission enclosure at or near the second end of the power source compartment. The transmission exhaust may provide a source of airflow throughout the power source compartment, which provides cleaner air and increased pressure in the power source compartment.

Abstract: A system of controlling the capture of emissions from an exhaust emitter includes a housing including an inlet, a first outlet, and a second outlet; an adapter configured to attach to the exhaust emitter and the inlet of the housing; an attachment assembly coupled to the exhaust emitter, the attachment assembly including at least one leg pivotably coupled to the adapter; at least one valve coupled to the housing; and a control unit capable of communicating with the at least one valve to control the emission of exhaust through the device.