Abstract: A method for controlling air flow through a compressor recirculation passage, comprising: during a first condition: reducing air flow through the compressor recirculation passage based on a margin, the margin based on a rate of air flow at a compressor inlet, a rate of air flow through the compressor recirculation passage, and a rate of EGR flow. In this way, the CRV recirculation flow may be controlled to be less than the amount that could potentially backflow into an air filter disposed in the air intake passage, thus preventing EGR contained in the CRV recirculation flow from fouling the air filter with soot, oil and water.

Abstract: Methods and systems are provided for reducing exhaust energy delivered to a turbine of a turbine-generator coupled to a split exhaust engine system in order to reduce turbine over-speed conditions and/or to reduce a generator output. In one example, a method may include retarding a first timing of a first exhaust valve utilized to deliver a blowdown portion of exhaust energy to the turbine, and/or advancing a second timing of a second exhaust valve utilized to deliver a scavenging portion of exhaust energy to an exhaust catalyst in response to a turbine speed greater than a threshold speed.

Abstract: An exhaust gas purification system with a diesel particulate filter in an exhaust passage of an internal combustion engine. A surface filtration cake layer formation enhancement control or a particulate matter generation amount reduction control is temporarily performed immediately after a forced regeneration treatment on the diesel particulate filter. The system and a method are directed to a particulate matter slip-through phenomenon in which the particulate matter slip-through amount temporarily increases immediately after particulate matter re-combustion in a forced regeneration treatment on the diesel particulate filter. The diesel particulate filter is disposed in the exhaust passage of the internal combustion engine and reduces the total amount of particulate matter emitted to the atmosphere immediately after the particulate matter re-combustion in the forced regeneration treatment on the diesel particulate filter.

Abstract: A hatch cover is provided for a hatch of a nacelle for a wind driven power plant. The hatch cover includes several segments configured to remain within a hatch opening when a hatch is in an open position.

Abstract: A urea backflow prevention apparatus of SCR in an SCR system which injects a urea solution into an exhaust pipe may include: a urea tank to store the urea solution; a nozzle to be installed in the exhaust pipe to inject the urea solution; a supply pump to pump the urea solution; a suction line connecting the urea tank to the supply pump; a pressure line connecting the supply pump to the nozzle; a return line connecting the supply pump to the urea tank to return un-injected urea solution back to the urea tank; and a backflow prevention line connecting the pressure line to the return line. The backflow prevention line keeps pressures of the pressure line, the supply pump directly connected to the pressure line and the suction line indirectly connected to the pressure line equal to an atmospheric pressure after an operation of the SCR system ends.

Abstract: The present invention relates to a hydraulic energy store (1) having a first (2) and a second fluid reservoir (6), the fluid levels (4, 12) of which extend at different heights, which are connected to one another via a turbine/pump arrangement (10) and during the operation of which a fluid (3) can be moved to and fro between the first (2) and second fluid reservoir (6) and energy can be converted in the process. The second fluid reservoir (6) is configured as a container which is arranged within the fluid (3) in the first fluid reservoir (2), wherein, during operation, the fluid level (12) in the second fluid reservoir (6) can be changed in such a way that, as a result, the immersion depth (ht) of said second fluid reservoir (6) in the first fluid reservoir (2) can be changed owing to buoyancy.

Abstract: A device for utilizing waste heat from an engine, which is provided with a Rankine cycle device having an expander bypass passage and a bypass valve that opens and closes the expander bypass passage, and transmits the output torque Tr of the Rankine cycle device to the engine, estimates the output torque Tr of the Rankine cycle device accurately. An output calculation part includes a torque estimation portion that estimates the torque of an expander. The torque estimation portion has a first torque estimation equation corresponding to an opening position of a bypass valve, and a second torque estimation equation corresponding to a closed position of the bypass valve. The output calculation part calculates an output torque Tr of a Rankine cycle device, based on a torque estimated value by the first or second torque estimation equation.

Abstract: A pollutant collecting pump for water surface comprises a power device (1) and a pollutant collecting barrel (6). The power device (1) is connected to the pollutant collecting barrel (6). A pollutant inlet (4) is provided on the upper portion of the pollutant collecting barrel (6), and a pollutant outlet (5) is provided on the lower portion of the pollutant collecting barrel (6). A blade (2) is provided outside the pollutant collecting barrel (6), and an axis of the pollutant collecting barrel (6) is perpendicular to a rotating surface of the blade (2). The pollutant inlet (4) is positioned above the blade (2). The pollutant collecting pump for water surface is adapted to collect pollutants distributed on water surface with low density and small thickness, and has the advantages in simple structure, low manufacturing cost, convenient operation and thorough collection.

Abstract: An exhaust gas distributor is disclosed. The distributor includes a distributor housing having a first exhaust gas path fluidically connecting a first inlet opening to a first outlet opening, a second exhaust gas path fluidically connecting a second inlet opening to a second outlet opening, and a third exhaust gas path fluidically connecting the second exhaust gas path to a third outlet opening, and an adjustable control element controlling the distribution of an exhaust gas flow from the second inlet opening to the second outlet opening and the third outlet opening. The control element in its end positions cooperates with stop contours. The control element is supported in a control housing that is manufactured separately from the distributor housing and which is installed in the distributor housing.

Abstract: A system and method for controlling a multiple cylinder internal combustion engine having an exhaust gas turbocharger with a compressor coupled to a turbine include redirecting substantially all intake airflow around the compressor and substantially all exhaust flow around the turbine when an engine operating parameter exceeds an associated threshold. In one embodiment, turbocharger boost is provided below an associated engine speed threshold with the turbocharger compressor and turbine bypassed at higher engine speeds such that the engine operates as a naturally aspirated engine.

Abstract: A combustion engine (E) for a motorcycle includes a crankshaft (26) extending in a widthwise direction of the motorcycle and a supercharger (42) which pressurizes intake air (I). A clutch gear (72) to which a clutch is connected is provided at the right side of the crankshaft (26), and a supercharger gear (80) which drives the supercharger (42) is provided at the left side of the clutch gear (72). The supercharger gear (80) is formed on a crank web (75) disposed such that a journal (68) is located between the clutch gear (72) and the crank web (75).

Abstract: The present invention relates to a hybrid system comprising a supercharging system for an internal combustion engine (1), the hybrid system comprising: a charging device (6) with a turbine (7) connected to a compressor (8) via a compressor shaft (9), the compressor having a high speed shaft (30); a planetary gear (25) coupled between the high speed shaft (30) and an electric motor/generator (20); a clutch (18a); and a power transmission for connecting a crank shaft (4) of the combustion engine (1) to the electric motor/generator (20) via the clutch (18a); wherein the hybrid system further comprises a system control (23) configured to operate the hybrid system in different operating modes according to a control sequence based on one, or a plurality of, input parameters representative of operational properties of the hybrid system.

Abstract: A waste heat utilization device for a motor vehicle includes a waste heat utilization circuit in which a working medium circulates. The water heat utilization circuit includes a conveying device, an evaporator, an expansion machine, and a condenser. The waste heat utilization device also includes an electrical generator in direct or indirect drive connection with a power take-off shaft of an internal combustion engine. The expansion machine is in direct drive connection with the power take-off shaft of the internal combustion engine for purposes of energy recirculation.

Abstract: A system includes a controller configured to control an operational behavior of a turbine system. The controller includes a droop response system configured to detect one or more operational characteristics of the turbine system as an indication of a frequency variation of an electric power system associated with the turbine system. The droop response system is further configured to generate a response to vary an output of the turbine system in response to the indication of the frequency variation. The controller includes a multivariable droop response correction system configured to determine one or more possible errors associated with the one or more operational characteristics of the turbine system, and to generate a plurality of correction factors to apply to the response generated by the droop response system. The plurality of correction factors is configured to correct the response generated by the droop response system.

Abstract: A charge air cooler assembly for an internal combustion engine is described. A housing of the charge air cooler assembly includes a dividing wall that separates flow after the charge air cooler into two separate flow paths.

Abstract: A rotary engine includes: a frame; a flywheel rotor having an axle rotatably mounted on the frame; a plurality of erectable pistons respectively mounted in an annular trough concentrically recessed in a rim of the flywheel rotor; and a cylinder block fastened on a housing secured to the frame and cooperatively forming an engine cylinder with the annular trough of the flywheel rotor, whereby each erectable piston is operatively erected beyond a cylinder head of the engine cylinder to dynamically define an instant combustion chamber among the cylinder head, the cylinder block, the piston and the annular trough of the rotor; and whereby upon combustion and explosion in the combustion chamber, the explosion gases will force and drive the erectable piston to rotate the flywheel rotor for outputting mechanical energy.

Abstract: Methods and systems are provided for controlling and coordinating control of a post-catalyst exhaust throttle and an EGR valve to expedite catalyst heating. By closing both valves during an engine cold start, an elevated exhaust backpressure and increased heat rejection at an EGR cooler can be synergistically used to warm each of an engine and an exhaust catalyst. The valves may also be controlled to vary an amount of exhaust flowing through an exhaust venturi so as to meet engine vacuum needs while providing a desired amount of engine EGR.

Abstract: The present disclosure includes a system and method for regulating exhaust gas recirculation (“EGR”) in an engine. In one embodiment, the system may include a knock sensor coupled to the engine that sends a signal corresponding to at least one operating condition of the engine to a controller. The controller may estimate an amount of EGR gas administered to the engine and regulate the amount of EGR gas being administered to the engine when the estimated amount of EGR gas is not an effective amount.

Abstract: A system of recycling exhaust heat from an internal combustion engine may include an EGR line circulating a portion of exhaust gas generated from the engine to an intake side, a working fluid circulating line configured to have a working fluid satisfying a Rankine cycle, which is circulated therein, and an EGR side heat exchanging unit configured to perform a heat-exchange between an EGR gas flowing in the EGR line and the working fluid flowing in the working fluid circulating line. When a temperature of the EGR gas is equal to or greater than a reference temperature T1, the EGR gas is circulated to the intake side via the EGR side heat exchanging unit, and when the temperature of the EGR gas is less than the reference temperature T1, the EGR gas is circulated to the intake side without passing through the EGR side heat exchanging unit.

Abstract: An opposed-piston engine has a cylinder block with a plurality of cylinders arranged inline, with each cylinder including an intake port longitudinally separated from an exhaust port. The engine's air handling system includes open intake and exhaust chambers in the cylinder block. The open chamber constructions eliminate the need for multi-pipe manifolds and smooth the flow of charge air.