Abstract: Provided is a sparger including: a main body including a plurality of holes, a protruding pipe extending upward along an outer circumferential surface of the plurality of holes, and a side pipe extending from a side surface of the protruding pipe.

Abstract: A rocker assembly for a valvetrain comprises a rocker arm comprising a cam end, a center pivot bore, and a valve end, the valve end comprising a first bore. The engine brake actuator comprises an engine brake mechanism disposed within the first bore, the engine brake mechanism comprising a body and a plunger disposed within the body. The plunger is configured to translate between a retracted position and an extended position. The plunger contains a spring disposed between latch pins, the spring being configured to bias the latch pins in an outward direction. The body defines seats for receiving the latch pins. The rocker assembly further comprising an actuation mechanism disposed within a second bore and configured to direct a fluid to the engine brake mechanism to hydraulically move the plunger to the extended position and hydraulically move the latch pins toward each other.

Abstract: A treatment device for semiconductor manufacturing exhaust gas of the present invention includes an inlet scrubber, a gas treatment furnace, and an outlet scrubber. The gas treatment furnace includes an outer cylinder having a main body that includes a gas treatment space formed therein and a gas introduction port drilled in a bottom thereof, an inner cylinder that extends across the gas treatment space such that one end thereof is mounted to the bottom inside the main body so as to enclose the gas introduction port and another end thereof is opened and located at a position close to a ceiling surface of the main body, and an electric heater that is hung from a ceiling of the main body and that has a heating element having a long bar shape placed in an internal space of the inner cylinder.

Abstract: Disclosed are parallel pumping controllers (e.g., control panels, etc.) with load sharing and systems including such parallel pumping controllers. An exemplary system includes first and second controllers. The first controller is configured for communication with a first engine for controlling operation of a first pump via the first engine. The second controller is configured for communication with the second engine for controlling operation of the second pump via the second engine. The first controller is further configured for communication with the second controller, whereby the first controller is operable for controlling operation of the first pump via the first engine and for controlling operation of the second pump via communications with the second controller, which responsively controls operation of the second engine according to the communications from the first controller.

Abstract: A method and apparatus includes at least one guide movable along a single axis of motion and at least one tip interface associated with the at least one guide, where the at least one tip interface moveable between a first position and a second position. A resilient member biases the at least one tip interface to the second position. A shape-memory alloy actuator moves the at least one tip interface to the first position in response to an electrical input. The shape-memory alloy actuator includes at least one electrical connector. At least one circuit board is connected to the at least one electrical connector, wherein the single axis of motion extends non-perpendicular to a planar surface of the at least one circuit board.

Abstract: A geothermal wellbore tractor is provided. The geothermal wellbore tractor can include a hydraulic subsystem, a plurality of wheels in communication with the hydraulic subsystem, and a slick line attachment mechanism in communication with the hydraulic subsystem and engaged to a slick line. Motion of the slick line can be operable to generate power for the hydraulic subsystem. The hydraulic subsystem can be operable to control motion of the plurality of wheels.

Abstract: A catalytic reaction unit has a plurality of catalyst bed layers arranged vertically, each of the catalyst bed layers being filled with a solid catalyst, and an inclined surface on the upper part of the corresponding solid catalyst arranged between adjacent catalyst bed layers; a liquid phase feeding subunit arranged above the topmost catalyst bed layer, and the liquid phase feed is guided by the inclined surface to sequentially enter each catalyst bed layer from top to bottom; a gas phase feeding subunit arranged between the catalyst bed layer of an upper layer and the inclined surface of the next layer, and a gas phase channel relatively isolated from the gas phase feeding subunit. The gas phase product generated after the gas-phase feed and the liquid phase feed react in the catalyst bed layer directly enters the gas phase channel.

Abstract: The present disclosure provides an exhaust gas aftertreatment system for an ammonia fueled internal combustion engine comprising: a passive SCR catalyst system arranged downstream of the engine, the passive SCR catalyst system comprising an SCR catalyst and no reductant injection system, and an active SCR catalyst system arranged downstream of the passive SCR catalyst system, the active SCR catalyst system comprising an SCR catalyst, a first NOx sensor and a reductant injection system, the reductant injection system comprising a reductant injector and a controller controlling reductant injection based on an NOx concentration measured by the first NOx sensor.

Abstract: Disclosed are a rotary compressor and a refrigeration cycle device having the same. The rotary compressor and the refrigeration cycle device having the same may include a casing, a main bearing, a sub bearing, a cylinder, a roller, a vane, and an injection passage, and the injection passage may be disposed in at least one selected from the main bearing, the sub bearing, and the cylinder to communicate with a corresponding compression chamber after a compression start angle of the corresponding compression chamber. Thus, a maximum injection section may be secured, while a refrigerant being injected may be suppressed from being leaked toward a suction port.

Abstract: An apparatus for diagnosing a post-processing system includes a first catalyst, an exhaust heat recovery system, and a second catalyst sequentially disposed on an exhaust line. The apparatus further includes a main bypass line, an auxiliary bypass line, a first bypass valve, and a second bypass valve. The apparatus further includes a controller configured to determine whether a first temperature sensor configured to measure a temperature of an exhaust gas on an upstream side of the first bypass valve, a second temperature sensor configured to measure a temperature of the exhaust gas on an upstream side of the exhaust heat recovery system, a third temperature sensor configured to measure a temperature of the exhaust gas on the downstream side of the exhaust heat recovery system, the first bypass valve, and the second bypass valve are abnormal, depending on whether a predetermined diagnosis condition is satisfied.

Abstract: An exhaust gas aftertreatment system for an internal combustion engine of a vehicle includes: an exhaust gas line, a main SCR catalyst, a diesel particulate filter arranged upstream of the main SCR catalyst, a first reducing agent injector associated with the main SCR catalyst, a close-coupled SCR catalyst, a second reducing agent injector associated with the close-coupled SCR catalyst, a sensor arrangement and a control unit. The control unit is set up to detect sensor signals of the sensor arrangement, to control components of the exhaust gas aftertreatment system and to determine the efficiency of the SCR catalysts. The efficiencies of the SCR catalysts are determined based on the sensor signals from the sensor arrangement and to modulate the efficiency of the close-coupled SCR catalyst as a function of the efficiency of the main SCR catalyst.

Abstract: A valve lift conversion control mechanism includes a hydraulic transmission device that includes at least two device bodies, a check valve and a solenoid valve. The device bodies are in communication with each other through an oil circuit. The solenoid valve is configured to supply oil to the oil circuit through the check valve. The second device body is configured to be pressed downwards by a second rocker arm to be driven to press the oil in the oil circuit to increase an oil pressure, and a first device body is configured to press a first valve controlled by a first rocker arm downwards under the increased oil pressure in the oil circuit. The valve system of the engine includes the valve lift conversion control mechanism.

Abstract: A gaseous fuel engine system includes an engine forming a cylinder, and an intake valve movable to open and close an intake port to the cylinder. The engine system also includes a fuel system having a fuel injector to inject a gaseous fuel such as a gaseous hydrogen fuel to mix with a flow of intake air for combustion in the cylinder. The engine system further includes a cam coupled to the intake valve, and a variable valve actuator coupled to the intake valve and arranged to position the intake valve at a flow-throttling middle position to improve fuel and air mixing, such as in response to engine load transients.

Abstract: A compressor includes a housing, a cylinder, a roller, and a vane. The cylinder is inside the housing and has a cylinder chamber formed therein. The roller is configured to be rotatable in the cylinder chamber, and has a vane groove on an outer surface and an oil guide that extends between the vane groove and the inner surface of the roller. The oil guide guides oil within the vane groove. The vane is configured to be inserted and moved in the vane groove. The vane and the roller together partition the cylinder chamber into an inlet chamber into which a refrigerant is introduced and a compression chamber in which the refrigerant is compressed.

Abstract: The invention relates to a compressor system, in particular a screw compressor, for compressing gases, preferably air, comprising a compressor block (11) in which a compressor chamber (12) is formed in which the gas is compressed via mechanical compression means (13), wherein the compressor chamber (12) has an inlet opening (14) on the inflow side and an outlet opening (15) on the outflow side, and a control device (16) for controlling a drive (17) of the compression means (13), wherein the control device (16) is operatively connected to a temperature sensor (19) and/or a humidity sensor (20) in order to determine state conditions of the gas entering at the inlet opening (14), characterized in that the temperature sensor (19) and/or the humidity sensor (20) are arranged at or in the control device (16) within the compressor system for detecting a temperature Tc prevailing there or a humidity Fc prevailing there, and the control device (16) comprises a processing device (23) in order to draw conclusions from t

Abstract: A scroll compressor includes a housing and a rotatable drive shaft disposed within the housing and having an eccentric end portion. First and second support bearings rotatably couple the drive shaft with the housing and each includes a plurality of rolling elements, at least one of which is ceramic, and an annular cage formed of a polymeric material. A scroll member is disposed within the housing chamber and a drive bearing rotatably couples the shaft eccentric portion with the scroll member such that the scroll member orbits about the central axis. The drive bearing includes a plurality of rolling elements, at least one of which is ceramic, and an annular cage formed of a polymeric material. Further, a solution formed of refrigerant and oil is directed to each one of the drive bearing and the first and second support bearings so as to lubricate the rolling elements.

Abstract: An electric pump may include: a motor unit; and a pump unit configured to be driven by the motor unit and discharge water. The motor unit may include: a body housing including a battery holding part configured to hold at least one battery pack; and an electric motor accommodated in the body housing and configured to drive the pump unit. The at least one battery pack is configured to be used in the electric pump and in an apparatus other than the electric pump.

Abstract: A compression ignition internal combustion engine (30) for a heavy-duty diesel vehicle comprising an exhaust system (32) comprising a composite oxidation catalyst (12, 42) and a soot filter substrate (44, 50) disposed downstream from the composite oxidation catalyst comprising: a substrate (5), preferably a honeycomb flow-through substrate monolith, having a total length L and a longitudinal axis and having a substrate surface extending axially between a first substrate end (I) and a second substrate end (O); two catalyst washcoat zones (1, 2) arranged axially in series on and along the substrate surface.

Abstract: A vehicle includes an internal combustion engine. An exhaust system is connected to an exhaust output of the internal combustion engine. The exhaust system includes a passive storage component upstream of an electric heating unit and a selective catalytic reducer and a particulate filter downstream of the electric heating unit. A controller is controllably coupled to the exhaust system and configured to initiate a soot burn of the particulate filter while maintaining the passive storage component within a predetermined temperature range.

Abstract: The technology described herein relates to, among other topics, a power system using solar assisted equipment that significantly reduces the amount of fossil fuels burned in the energy production process. The technology described in this disclosure relates to providing a constant flow of thermal heated water to a boiler (e.g., heated using a fossil fuel), which in turn provides steam to operate an electricity generator. The thermal heated water raises the temperature of the water used for creating steam thus reducing the overall boil time (and consequently reducing the amount of time fossil fuels are being consumed).