Abstract: Exemplary embodiments are disclosed of compressor assemblies including lower covers having mounting feet skirts configured for increasing mounting feet stiffness and provide better resistance to crack formation due to vibration, e.g., in mobile and transport applications, etc. The mounting feet skirts may comprise full, rounded, and/or radiused skirts disposed along or around the entire end portions of the mounting feet near the mounting holes (e.g., bolt holes, etc.) in the mounting feet. Using full, rounded, and/or radiused skirts avoids or eliminates sharp corners, such as the sharp corner fillet features of conventional lower covers that are prone to having cracks form due to vibration while in transit.

Abstract: The present invention relates to a catalyst for the oxidation of hydrocarbon and the selective catalytic reduction of nitrogen oxides, the catalyst comprising a substrate comprising an inlet end, an outlet end, a substrate axial length extending from the inlet end to the outlet end and a plurality of passages defined by internal walls of the substrate extending therethrough; and a coating disposed on the surface of the internal walls of the substrate, wherein the surface de-fines the interface between the passages and the internal walls, wherein the coating comprises a platinum group metal component supported on a first oxidic material and further comprises a mixed oxide of vanadium and one or more of iron, erbium, bismuth, cerium, europium, gadolinium, holmium, lanthanum, lutetium, neodymium, praseodymium, promethium, samarium, scandium, terbium, thulium, ytterbium, yttrium, molybdenum, tungsten, manganese, cobalt, nickel, copper, aluminum and antimony, wherein the mixed oxide is supported on a second oxidic

Abstract: This disclosure describes systems, methods, and devices related to generating electricity with a water engine. A water engine may include a boiler; a solar oven to retain heat with which the boiler is to heat a liquid to generate steam; a spout extending from the boiler to the liquid, through which the steam passes from the solar oven to the liquid and through which the liquid passes to the solar oven; a floating platform to float on the liquid; and a magnetic rotor operationally connected to the floating platform and to generate electricity by spinning in the liquid.

Abstract: A method of heating catalyst through system cooperation implemented by a vehicle may enable the start of an engine of a part load among engine operation modes to heat a catalyst even in a cold quick acceleration situation with a lock-up CH control by locking up an engine clutch through system cooperation implemented by mutually exchanging information between controllers of an engine management system (EMS) and a hybrid control unit (HCU) by applying a lock-up CH control logic which retards a lock-up CH ignition angle compared to an idle CH control logic of the conventional method, thereby improving the regulation responsiveness, fuel efficiency, and merchantability relatively compared to the idle CH even while having the advantages of the idle CH in which quick lambda feedback control for an engine is possible.

Abstract: An electrical power generating system includes one or more air compressors, one or more air staging tanks, one or more turbines, and one or more electric generators. The air compressors are in fluid communication with the air staging tanks to supply compressed air to the one or more air staging tanks. The staging tanks are connected to and in fluid communication with the turbines to convey the compressed air to the one or more turbines, so as to rotate the turbines. Each of the turbines is connected to an electric generator to generate power from the compressed air flowing through the turbines. The turbines are arranged one above another to form a vertical air pathway through the one or more turbines.

Abstract: A rotor blade configured to be installed on a rotary wing aircraft includes a spar including an inboard portion extending from a root of the rotor blade to a first spanwise position of the rotor blade and an outboard portion meeting the inboard portion at the first spanwise position. The rotor blade further includes an upper skin and a lower skin coupled the outboard portion of the spar. The first spanwise position is defined by a most inboard point at which the upper and lower skins are coupled to the spar. The inboard portion includes a top layer, a bottom layer, and an inner cavity. The top layer has a substantially constant first thickness and the bottom layer has a substantially constant second thickness, and the distance between an outer surface of the top layer and an outer surface of the bottom layer is substantially constant.

Abstract: A jig for inserting a packing into a flow passage of a reactor extending in one direction or for removing the packing from the flow passage, includes: a pair of strip portions extending in parallel with each other, having a length longer than the flow passage; and link portions arranged in an extending direction of the pair of strip portions, linking the pair of strip portions and having lengths with which the pair of strip portions sandwich the packing therebetween.

Abstract: A honeycomb structure made of ceramics, wherein the honeycomb structure includes: a borosilicate; and silicon particles doped with at least one dopant, the dopant is a Group 13 element or a Group 15 element, the silicon particles have a dopant amount (A) of 1×1016 to 5×1020/cm3, and the honeycomb structure has a silicon particle content (B) of 30 to 80% by mass.

Abstract: The present invention relates to a catalyst comprising a carrier substrate of length L and at least two washcoat layers A and B wherein washcoat layer A comprises alumina; ceria; an alkaline earth compound and/or an alkali compound; platinum, palladium or platinum and palladium; washcoat layer B comprises a zeolite and palladium, wherein the palladium is present as palladium cation in the zeolite structure or is wholly or partially present as palladium metal and/or as palladium oxide in the zeolite structure and/or on the surface of the zeolite structure; and wherein washcoat layer A is arranged below washcoat layer B.

Abstract: A vessel propulsion apparatus includes an engine and a propulsion unit to be driven by the engine. The engine includes cylinders arranged in series, exhaust ports respectively connected to combustion chambers of the cylinders and curved in a predetermined downstream direction to allow exhaust gases to flow out from the combustion chambers, and a collecting exhaust pipe. The collecting exhaust pipe is integral with the exhaust ports, and extends in the downstream direction to allow exhaust gases in the exhaust ports to flow in the downstream direction. At least one of a plurality of connector portions that individually connect the exhaust ports to the collecting exhaust pipe includes a concave portion at an inner surface thereof.

Abstract: An electrically heatable catalytic converter with a metal honeycomb body, the honeycomb body being formed by a plurality of wound metal foils and the honeycomb body being received in a casing tube, a device for electrically contacting at least individual foils being led into the casing tube through an opening in the casing tube, the device being formed by an electrode which is electrically insulated from the inside of the casing tube by a connecting layer and mechanically connected to the casing tube.

Abstract: Described herein is a process for increasing mass flow of an exhaust gas through a catalytic converter system for a vehicle. The process may comprise determining a centerline and corresponding cumulative centerline bend angle of a first catalytic converter system spanning from an inlet point at a first end of the catalytic converter systems exhaust pipe to an outlet point at a second end of the catalytic converter systems extension pipe. Once determined, the cumulative centerline bend angle may be increased by increasing an individual bend radius of at least one bend within the exhaust pipe and/or within the extension pipe.

Abstract: An element for compressing a gas with a housing (2) which encloses a compression chamber (5) with an outlet port (7) connected to the outlet. A rotor (8) is mounted so that the compression chamber (5) is divided into working chambers. A passage (10) extends between the outlet and a working chamber in the compression chamber (5) which is not in adjacent contact with the outlet port (7). The passage has an overpressure valve (11) to open the passage when a pressure difference between the working chamber and the outlet (4) exceeds a preset value. A valve body (12) encloses a buffer space (13) with a variable volume that is in fluid connection with the outlet through a constriction (14), so the volume is reduced and gas from the buffer space (13) flows through the constriction (14) to the outlet upon opening the passage (10).

Abstract: A control unit for an engine system including an engine and a catalyst for purifying exhaust gas from the engine, the control unit includes an engine control unit, a detection unit, a determination unit, and a stopping unit.

Abstract: According to the subject-matter of the present disclosure, there is provided an electrically powered fan engine. The fan engine includes: an energiser chamber between an inlet and an exhaust of the electrically powered fan engine; a first rotor within the energiser chamber, the first rotor including a plurality of blades and being configured to receive a fluid from the inlet and configured to rotate at a first velocity; and a second rotor within the energiser chamber, the second rotor including a plurality of blades and being configured to receive the fluid after passing through the first rotor and configured to rotate at a second velocity. The first velocity is different from the second velocity.

Abstract: There is provided a technology of which main object is reduction of a flow rate fluctuation of working fluid and vibration reduction by suppression of a pressure pulsation therewith and which is also for reducing a pulse-like pressure pulsation, an exciting force, and leakage that occur when ports that communicate with a working chamber are switched at the same time in a rotary-vane-type displacement machine. A change pattern of each working chamber volume determined by the motion of vanes pressed against a cam-ring inner circumferential surface is improved and the fluctuation of the entire flow rate that is a time change of the total volume of each working chamber is reduced by devising the profile of the cam-ring inner circumferential surface.

Abstract: The present disclosure relates to an ammonia plant, wherein the ammonia plant comprises a converter, a first heat exchanger, and a removal apparatus. The converter and the first heat exchanger are connected to one another via a product gas connection in such a way that the ammonia synthesis product gas is guided out of the converter via the first heat exchanger to the removal apparatus. The removal apparatus and the converter are connected to one another via a reactant gas connection in such a way that the circulation gas is guided from the removal apparatus to the converter. The ammonia plant comprises a hydrogen feed that is connected to the converter via a second heat exchanger. The ammonia plant comprises a first electric heater and a steam turbine. The first electric heater is connected to the converter or to the steam turbine.

Abstract: The disclosure concerns a waste heat recovery system that is configured to operate as a prime mover in emergency case, when the heat source is down. The waste heat recovery system comprises, in addition to a heater configured to circulate a working fluid in heat exchange relationship with a heating fluid from the heat source to heat the working fluid, an independent auxiliary heat source configured to provide an additional heating fluid in heat exchange relationship with the working fluid, to heat the working fluid. The system is provided with a secondary heater, which is configured to circulate the working fluid in heat exchange relationship with the additional heating fluid from the independent auxiliary heat source and which can be used to replace the heater or in combination with the heater.

Abstract: A spiral valve and a screw compressor having a compressor housing and the spiral valve are provided. The spiral valve includes an actuator module having an electric motor and a gearbox mechanically coupled to the electric motor to transmit a torque from the electric motor, and a spiral valve body coupled to the gearbox to rotate in response to the transmitted torque from the electric motor. The spiral valve body has a first shutter positioned to open and close one or more of a plurality of bypass ports formed in the compressor housing based on a rotational position of the second shutter, a second shutter positioned to progressively open and close a compressor inlet transfer duct formed in the compressor housing based on a rotation position of second shutter, and a gap formed between the first and second shutters.

Abstract: The present invention disclosed an Organic Rankine Cycle (ORC) power generation system utilizing LNG cold energy and dual-fuel marine engine waste heat. The ORC power generation system has a Liquified Natural Gas (LNG) loop, one or more ORC loop, and one or more waste heat recovery (WHR) loop. The LNG loop works as a heat sink, which provides cold energy for working medium condensation. The WHR loop, utilizing the waste heat from main engine jacket cooling water and engine exhaust gas, provides heat for working medium evaporation. The ORC loop may have a pump, a three-fluid heat exchanger, an expander, a power generator, a regenerator, a liquid-vapor separator, a liquid reservoir, a regulating valve, and an evaporator. A regenerator is arranged within the ORC loop between the expander and the three-fluid heat exchanger. The ORC loop may have one or more evaporator, which may recover the waste heat from main engine jacket cooling water and engine exhaust gas.