Abstract: A method for heating a delivery system providing reducing agent to an exhaust gas treatment device of an internal combustion engine having electrical components, includes determining a temperature in the delivery system, determining thermal energy required for error-free operation of the delivery system in a time interval, and introducing the required thermal energy into the delivery system by operating the electrical components within the time interval. The electrical components are activated at a time offset of at least 30 seconds. The required energy is determined so that the quantity of reducing agent to be delivered hourly is provided in liquid form at least four times after the time interval. The method prevents overloading of an electrical system of a motor vehicle when heating the delivery system and prevents ice cavity formation in a reducing agent in a tank. A motor vehicle having a delivery system is also provided.

Abstract: A burner device placed upstream of an exhaust treatment device mounted in an exhaust pipe to raise a temperature of an exhaust gas, comprises a fuel supply valve for supplying fuel into the exhaust pipe, an igniter that ignites the fuel supplied from the fuel supply valve, and a burner catalyst held in the exhaust pipe through a support member. The support member is formed in a corrugated shape in cross section including outer arc-shaped portions in contact with the exhaust pipe, inner arc-shaped portions in contact with an outer peripheral member of the burner catalyst, and coupling portions for coupling the outer arc-shaped portions and the inner arc-shaped portions to each other.

Abstract: The present disclosure is directed to an after-treatment device. The after-treatment device may have a center plenum configured to be fluidly connected to an engine. The after-treatment device may also have a filter bank having a plurality of filter assemblies. Each filter assembly may have an inlet fluidly connected to the center plenum. The inlet may be oriented orthogonal to the center plenum. Each filter assembly may also have an outlet. Further, the after-treatment device may have an exhaust plenum fluidly connected to the outlet. The exhaust plenum may be oriented orthogonal to the outlet. The exhaust plenum may also have an outer wall disposed parallel to and located at a predetermined distance from the outlet.

Abstract: An energy harvesting system comprises a first region having a first temperature and a second region. A conduit is located at least partially within the first region. A heat engine configured for converting thermal energy to mechanical energy includes a shape memory alloy forming at least one generally continuous loop. The shape memory alloy is disposed in heat exchange contact with the first region and the second region. The shape memory alloy is driven to rotate around at least a portion of the conduit by the response of the shape memory alloy to the temperature difference between the first region and the second region. At least one pulley is driven by the rotation of the shape memory alloy, and the at least one pulley is operatively connected to a component to thereby drive the component.

Abstract: Heat flow from a steam seal header could be used in a stage, such as a low pressure stage, of a steam turbine. However, the dump steam temperature from the steam seal header can be too high requiring removal of excess heat, typically through attemperation, before the dump steam is provided to the low pressure stage. Attemperation poses reliability and life issues and lowers efficiency. To address such short comings, one or more heat pumps are used to transfer heat from the dump steam to the fluid entering a boiler. This allows the dump steam temperature to be within acceptable limits, and at the same time, increase the temperature of the fluid so that the steam cycle performance is enhanced. Preferably, solid-state heat pumps are used as they are reliable, silent and can be precisely controlled.

Abstract: A system and method includes an internal combustion engine capable of producing an exhaust stream and an aftertreatment system operationally coupled to the exhaust stream. The aftertreatment system includes an upstream selective reduction catalyst (SCR) component and a downstream SCR component that are positioned in substantially different thermal environments. The upstream and downstream SCR components are sized to fully treat the entire exhaust stream at a low temperature highest NOx conversion condition, and the downstream SCR component is sized to fully treat the entire exhaust stream at a high temperature highest NOx conversion condition.

Abstract: A radiator is arranged behind an engine, a selective catalytic reduction apparatus, and a connecting pipe. A partition wall partitions first and second accommodation spaces. The engine, the selective catalytic reduction apparatus, and the connecting pipe are arranged in the first space. The radiator is arranged in the second space. A reducing agent tank is arranged behind the partition wall. A reducing ejection apparatus attached to the pipe ejects reducing agent into the pipe. A reducing agent hose connects the tank and the apparatus. The hose has a boundary portion positioned at a boundary between the first and second spaces. A height position of the boundary portion is between top and bottom sections of the connecting pipe. The boundary portion and the reducing agent ejection apparatus are arranged on a left or right side of a center line extending in a front and back direction of the partition wall.

Abstract: The invention relates to a drive unit, in particular for a vehicle drive, comprising a drive machine generating driving power, a cooling system for the fluid cooling of the drive machine and/or a component of the drive unit which is supplied at least indirectly with driving power by the drive machine, wherein in the cooling system a coolant circulates; a lubricating circuit for the lubrication of at least one movable component of the drive unit with a lubricant. The invention is characterized in that the drive unit further comprises an accumulation reservoir, in which a comprehensive operating fluid, which comprises a mixture of an ionic fluid and a vaporizable fluid, is stockpiled, wherein the cooling system and the lubricating circuit are at least indirectly fluidically connected to the accumulation reservoir in order to extract lubricant and coolant from the comprehensive operating fluid.

Abstract: The invention relates to an electric motor, in particular for a motor vehicle, comprising a housing (9), a shaft (8) having an axle (30), a stator and a rotor, at least one channel (11) for conducting a coolant for cooling the electric motor (5), wherein the geometry of the alignment of at least one section (12) of the at least one channel (11) is designed such that the coolant flows in the direction of the axle (30) of the shaft (8) through the at least one channel (11), having a deviation of less than 40°.

Abstract: A hybrid construction machine has an electric motor for driving the swing structure, and the electric motor is prevented from becoming incapable of generating torque due to a low energy state or an overcharged state of an electricity storage device. A swing-mode selector switch 77 which is manually operated switches between a hydraulic/electric combined swing mode for driving the swing structure by driving both the electric motor and a hydraulic motor and a hydraulic solo swing mode for driving the swing structure by driving only the hydraulic motor. For a normal operation, the swing mode is initially set in the hydraulic/electric combined swing mode. For a specific operation, the operator switches the swing-mode selector switch from a hydraulic/electric combined swing position to a hydraulic solo swing position.

Abstract: To improve the exhaust heat recovery efficiency, a compressor includes a heat exchanger for cooling a gas, coolant, water, or oil heated by the compressor during compressor operation by heat exchange with a working fluid, for circulating the working fluid of a Rankine cycle. The Rankine cycle is implemented by the heat exchanger, an expander, a condenser, and a circulating pump to circulate the working fluid through the cycle.

Abstract: An exhaust emission reduction system for a fuel injected engine system has a plurality of emission reduction components configured to process the exhaust gas. The emissions reduction components include of one or more NOX reduction components and one or more filtration components configured to reduce particulate matter, hydrocarbons and/or carbon monoxide emissions. Each engine cylinder is associated with a respective one of the emission reduction components, such that exhaust gas from each engine cylinder flows through the respective one emission reduction component in parallel with the exhaust gas flows from the other cylinders through their respective emission reduction components.

Abstract: A catalyst degradation detection apparatus includes: calculation means for calculating, as an oxygen storage amount of a catalyst, an amount of oxygen stored into or desorbed from the catalyst during a period from when a change that corresponds to a change in an air/fuel ratio occurs in the signal of a pre-catalyst sensor to when the signal of a post-catalyst sensor reaches a criterion value regarding the change in the air/fuel ratio; catalyst degradation determination means for determining of degradation of the catalyst on the basis of the oxygen storage amount; and correction means for correcting the oxygen storage amount calculated for use for determining of degradation of the catalyst more to a decrease side as a measured responsiveness of the post-catalyst sensor becomes more deteriorated relative to a reference value.

Abstract: An apparatus and method of controlling a vehicle aftertreatment system is provided. The aftertreatment system treats exhaust gas produced by the vehicle engine and includes a particulate filter, and a NOx reducing device such as a selective catalytic reduction (SCR) device. The particulate filter is configured to regenerate to remove accumulated particles when the exhaust gas is heated above a regeneration temperature. A diagnostic device is included for monitoring the aftertreatment system. The diagnostic device may be a sensor for measuring the oxides of nitrogen (NOx) and/or an SCR efficiency monitor. A controller is employed to optimize the function of the diagnostic device. The controller does not enable the diagnostic device when the vehicle is powered until one or more entry conditions are satisfied.

Abstract: A wave power module and each of a plurality of the power modules convert energy from high energy waves and swells into usable power on an industrial scale. These modules are connected by piping to the consumer of the mechanical energy in the form of the high pressurized working fluid. A submerged immovable platform and a submerged movable platform connected to a float by outer and inner power flexible links with variable free lengths and compressible chambers installed between the immovable and movable platforms. The variable buoyancy force of the float is converted into driving force, which acts through the movable platform on the compressible chambers to discharge a flow of the high pressurized working fluid to the consumer. The stroke of the movable platform and compressible chambers is less than the height of waves or swells.

Abstract: The present invention relates to a heat exchanger configured to capture energy by radiation, comprising at least one flag-shaped basic exchanger (10), including: a) an input collector (5) and an output collector (6); b) a plurality of exchange tubes (1) connected to the input collector (5) and to the output collector (6), respectively, and stacked so as to halt the incident radiation, each tube (1) being provided in the form of a hairpin with one curved part at the head of the pin (4) and two arms (2, 3) adjoining essentially vertically and on the largest part of the length thereof, the end of the tubes (1) at the pin head (4) being free and the tubes (1) being self-supported at the ends thereof connected to said collectors (5, 6).

Abstract: A method for producing an exhaust gas cleaning component having a carrier structure with an inflow side, an outflow side, a predefined through-flow direction and a deflection surface disposed opposite the outflow side, includes at least the following steps: providing the carrier structure, subjecting the carrier structure to an exhaust gas flowing from the inflow side to the outflow side in the predefined through-flow direction, determining a distribution of flow velocities on the outflow side of the carrier structure, and configuring the shape of the deflection surface with at least one backpressure element in dependence on the distribution of flow velocities on the outflow side, so that the distribution of flow velocities is equalized. An exhaust gas cleaning component and a motor vehicle having the exhaust gas cleaning component are also provided.

Abstract: Disclosed is an approach that uses an overload valve to operate a steam turbine reheat section. In one embodiment, the steam turbine reheat section receives a supply of reheated steam from a reheater at a first steam admission location via a reheat valve. The steam turbine reheat section is further adapted to receive a diverted portion of the reheated steam from the reheater at a second steam admission location via the overload valve.

Abstract: An exhaust-bypass valve capable of reducing wear of a rotating shaft to prevent controllability from deteriorating is provided. An exhaust-bypass valve (1) of a turbocharger includes a shunting passage (5) that communicates between a passage (3) at the turbine-inlet side and a passage (4) at the turbine-outlet side and a valve flap (6) that opens and closes this shunting passage (5). The valve flap (6) opens and closes to shunt a gas flowing through the passage (3) at the turbine-inlet side into the passage at the turbine-outlet side. The valve flap (6) is rotatably supported at one side thereof serving as a center-of-rotation side, and the other side thereof moves away from or towards the shunting passage (5) to open or close the shunting passage (5). A tapered portion (10) is provided at an edge on the other side. The edge is at least one of an edge of an opening of the shunting passage (5) facing the valve flap (6) and a side surface of the valve flap (6) facing the shunting passage (5).

Abstract: According to one embodiment, a solar heat collecting apparatus comprises a first heat exchanging unit and a second heat exchanging unit. The first heat exchanging unit includes a first pipe through which a heat medium flows and a first heat receiving face which receives heat of sunlight reflected by a plurality of reflecting units. The first heat exchanging unit heats the heat medium flowing through the first pipe by using heat of the first heat receiving face. A second heat exchanging unit includes a second pipe through which the heat medium heated by the first heat exchanging unit flows, a second heat receiving face which receives heat of the sunlight reflected by a plurality of reflecting units, and a nozzle provided to the second pipe to discharge the heat medium flowing through the second pipe toward a back face of the second heat receiving face.