Abstract: A method of manufacturing the aerofoil, and an aerofoil. The method includes: casting a first body portion having a passage passing there-through; casting a second body portion; and joining the first body portion and the second body portion to form the aerofoil. The passage extends from an opening at a first end at or near a leading edge to an opening at a second end at or near a trailing edge. The passage is formed during the casting process by a core; and the core is supported at the first and second ends through the respective openings of the passage.

Abstract: An aviation turbine blade extending in the radial direction and presenting a pressure side and a suction side, including a plurality of pressure side cavities extending radially at the pressure side of the blade, a plurality of suction side cavities extending radially at the suction side of the blade, and at least one central cavity located in the central portion of the blade and surrounded by pressure side cavities and by suction side cavities, the blade further including a plurality of cooling circuits, in which at least a first cooling circuit comprises: a first cavity and a second cavity, the first and second cavities communicating with each other at a radially inner end and at a radially outer end of the blade.

Abstract: A gas turbine and nozzle system is provided that includes a radial inflow turbine rotor and a volute providing a flow path to deliver a pressurized gas to a circumference of the radial turbine rotor. The volute incorporates a shape which substantially conforms to a radial turbine shroud contour. The volute includes at least first and second parts. A mating surface between the first and second parts is substantially aligned with a direction of pressurized gas flow in the volute.

Abstract: A set of turbomachine guide vanes including plural vanes arranged around an annulus, each vane having a leading edge extending between root and tip ends, the leading edge offset between these two ends being greater than 10% of the blade height. A tangential stacking of the guide vanes towards the suction face side, the curve of tangential stacking, of the position, in the direction tangential to the annulus, of centers of gravity of successive vane cross sections along the vane height, is a curve that increases constantly towards the suction face side. The curve, near the vane tip end, has an accentuated gradient towards the suction face side compared with the rest of the curve, and has a mean gradient near the vane tip end that is greater than at least 1.2 times the mean gradient of the curve over the portion between 30% and 90% of the vane height.

Abstract: An assembly for a primary flow path of a double flow turbomachine extending along a longitudinal axis including a reduction gear, configured to drive a fan in rotation, a stator including a plurality of vanes for straightening the primary flow path, and an intermediate casing, positioned downstream of the stator, including structural arms with fairings passing through the primary flow path, wherein a fairing and one straightening vane are connected together within the primary flow path by a connecting surface, the fairing and the vane being positioned longitudinally substantially at the reduction gear.

Abstract: The present invention relates to a module for a turbomachine, having a guide vane arrangement and a seal carrier, which is arranged, with reference to a longitudinal axis of the module, radially inside an inner platform of the guide vane arrangement, wherein, in each case with reference to the longitudinal axis of the module, when considered in an axial section, the seal carrier has a radially extending seal carrier wall and a sealing web extending axially away from it, which forms a labyrinth seal together with the inner platform of the guide vane arrangement, wherein the seal carrier wall and the sealing web are made up in one piece with each other, i.e., they are built up additively together.

Abstract: This document discloses a wall arrangement for a gas turbine engine, comprising: an annular wall comprising a plurality of circumferential wall segments, adjacent wall segments having opposing first and second end wall portions which define a separating gap therebetween, the gap including a saddle portion which faces radially outwards and comprises a first sealing face on the first end wall portion and a second sealing face on the second end wall portion; and, a longitudinal seal member having a curved sealing surface located within the saddle portion, wherein the curved sealing surface contacts either or both first and second sealing faces along the length of the saddle portion in use, wherein the seal member includes one or more axial restraint features which engage with a corresponding feature of the wall segment or a supporting structure thereof.

Abstract: A platform includes a platform body. The platform body has an airfoil support surface, an axially extending base surface opposite the airfoil support surface, and a leading edge. The leading edge includes an upstream extending flange with a raised portion and a trough portion downstream of and radially inward from the raised portion. The raised portion and the trough portion are for holding a vortex of fluid flow. The upstream extending flange includes a converging surface connecting the upstream extending flange to the base surface. The converging surface converges in a direction toward the axially extending base surface and is at an angle relative to the base surface.

Abstract: A system includes an air turbine starter having an inlet, a turbine air exhaust outlet, an output shaft, and a turbine in fluid communication with the inlet and the turbine air exhaust outlet. The turbine is operably coupled to the output shaft. The system also includes an outlet valve assembly configured to adjust an exhaust area of the turbine air exhaust outlet.

Abstract: A brush seal assembly is adapted to be operatively mounted between a stator and a rotor of a gas turbine engine. The brush seal assembly comprises a housing and a seal operatively coupled to the housing. The seal comprises at least two annular brushes each having a plurality of bristles extending away from the housing. The at least two annular brushes and the housing defines a cavity therebetween. The housing defines at least one circumferential surface within the cavity. The housing comprises at least one discontinuity defined in the at least one circumferential surface. The at least one discontinuity disrupts a continuity of annularity of the circumferential surface.

Abstract: A heat shield (100) and method for assembling such is disclosed. The heat shield (100) may comprise an outer wall (122) and an inner wall (124). The outer wall (122) includes a first member (130), a flange (132) extending outward from the first member (130) and a first inner edge (134). The first member (130) extends from the flange (132) to the first inner edge (134). The inner wall (124) includes a second member (140), a rim (142) extending outward from the second member (140) and a second inner edge (144). The second member (140) extends from the rim (142) to the second inner edge (144). The inner wall (124) is spaced apart from the outer wall (122), the first and second edges form an air gap (146) between them, and the inner wall (124) and the outer wall (122) form a cavity (148).

Abstract: A method for turbocharger key-off cooling control may include performing turbocharger key-off cooling control based on engine load for circulating engine coolant to a turbocharger cooling line when high cooling performance of a vehicle is checked by a coolant temperature and an oil temperature at which a turbocharger controller does not require operation of an auxiliary electric water pump when an engine is stopped.

Abstract: The present disclosure is directed to systems and methods generating power using supercritical CO2 in a Brayton cycle that incorporates a double-wall turboexpander that includes an inner chamber housing the turbine and an outer chamber that includes a thermal attenuator that reduces the outer chamber wall temperature of the turboexpander. An inner chamber wall separates the inner chamber and the outer chamber within the double-wall turboexpander. In supercritical CO2 applications, the double-wall turboexpander operates at elevated temperatures and elevated pressures. By maintaining the thermal attenuator the outer chamber at an elevated pressure, the differential pressure across the inner chamber wall is reduced, requiring less high-temperature alloy material in the construction of the double-wall turboexpander when compared to a conventional turboexpander.

Abstract: There is disclosed a bearing assembly for a gas turbine engine. The bearing assembly has a central axis and includes at least two bearings being axially spaced from one another relative to the central axis and configured to rotatably support a rotating component of the gas turbine engine. A bearing housing includes bearing supports supporting the at least two bearings. The bearing housing is securable to a casing of the gas turbine engine via hairpin structures being axially spaced from one another.

Abstract: There is disclosed a bearing assembly for a gas turbine engine including at least two bearings axially spaced from one another relative to a central axis, and a squirrel cage secured to a casing of the gas turbine engine. The squirrel cage supports respective bearing loads of the at least two bearings. The squirrel cage has a frangible section between the bearings configured to preferentially fail upon application of a load greater than a preselected threshold bearing load.

Abstract: A continuous flow machine has at least one annular guide vane carrier. The guide vane carrier, formed at least by a lower part and an upper part detachably connected to same, has at least three guide vane stages retained on the inner circumference of the at least one guide vane carrier, arranged axially behind one another in the flow direction and each having a plurality of radially extending guide vanes. Each of the guide vanes also has a guide vane blade, a base plate and a top plate, wherein the guide vane blade extends between the base plate and top plate. Via the arrangement of the securing pin in an intermediate space accessible in the assembled state, a partial disassembly of the individual guide vane stages is possible, independent of the remaining guide vane stages. The guide vane stages are conventionally mounted via retaining protrusions on neighbouring guide vane stages.

Abstract: A system includes a steam turbine. The steam turbine includes an outer casing and an inner casing disposed within the outer casing. The inner casing is horizontally split in an axial direction into an upper inner casing portion and a lower inner casing portion. The steam turbine also includes an impulse stage disposed within the inner casing, wherein the inner casing is configured to provide full arc admission of a fluid to the impulse stage. The steam turbine further includes at least one reaction stage having multiple blades. The at least one reaction stage is integrated within the inner casing.

Abstract: An aircraft propulsion assembly having a thrust reverser with moving guards, including an engine covered by a front cover and a rear cover that are both mobile; moving guards supported by the rear cover, the guards being covered by the front cover in normal operation, and extending into a space separating the front cover from the rear cover when the rear cover is moved to the rear; two arcuate frames, which are spaced apart and surround the engine in order to support actuators for moving the rear cover; the space located between the two arcuate frames being uncovered when the front and rear covers are moved to the front and rear; and wherein the two arcuate frames jointly support a series of elements forming steps which constitute a ladder for quick access to the top of the propulsion assembly.

Abstract: A method of assembling and disassembling a gas turbine, and a gas turbine assembled thereby, improves work efficiency and reduces time and cost by carrying out various disassembly and reassembly processes depending on circumstances. In one process, a turbine section is disassembled from a gas turbine by sequential steps of disassembling an upper turbine case; disassembling a rear diffuser assembly and a rear bearing assembly; disassembling a combustor assembly; disassembling a vane assembly; and disassembling a blade assembly. In another process, first-stage to fourth-stage blade assemblies and first-stage to fourth-stage vane assemblies in a turbine section are disassembled from the gas turbine by sequential steps of disassembling an upper turbine case; disassembling a combustor assembly; disassembling a vane assembly; and disassembling a blade assembly.

Abstract: An exhaust heat recovery system with a working fluid circuit. The exhaust heat recovery system has a heat exchanger connected in an exhaust line of an internal combustion engine. The heat exchanger is a part of the working fluid circuit together with at least one expansion machine, a condenser, and a fluid pump. The exhaust heat recovery system has a protective device. The protective device protects the exhaust heat recovery system against a leakage amount of the working fluid escaping from the working fluid circuit and igniting. The protective device has a reservoir which stores a medium. The reservoir is a gas reservoir and the medium is a gas.

Abstract: A boiler including one or more evaporators, an economizer, and a low-temperature heat exchanger. The economizer is located on a downstream side of the most downstream evaporator which is an evaporator at the most downstream side among the one or more evaporators. The low-temperature heat exchanger is located on the downstream side of the economizer, has an inlet for receiving water from the outside, and is configured to heat the water introduced from the inlet and sent to the economizer with the combustion gas.

Abstract: This disclosure relates to a camshaft adjusting system for a motor vehicle, having an inner camshaft, and an outer camshaft, which is arranged coaxially with and radially outside the inner camshaft. The camshaft adjusting system further includes an input wheel, which is designed to introduce torque into the camshafts, a hydraulic camshaft adjuster, which acts on the outer camshaft to adjust the phase angle of the outer camshaft relative to the input wheel, and an electric camshaft adjuster, which acts on the inner camshaft to adjust the phase angle of the inner camshaft relative to the input wheel. The electric camshaft adjuster engages in the hydraulic camshaft adjuster at least partially in an axial direction.

Abstract: A control valve for use in a cam timing phaser arrangement is disclosed comprising a cylindrical valve body, a rotational shuttle element coaxially located within a recess of the valve body, and a blocking pin. When using in a cam timing phaser arrangement having a first phasing chamber and a second phasing chamber, the control valve when non-actuated acts as a double check valve, preventing flow between chambers. Actuation of the blocking pin limits rotation of the rotational shuttle element and results in the control valve allowing flow in a single flow direction between phasing chambers. The allowed direction of flow can be controlled by controlling the timing of the deployment of the blocking pin. A cam timing phaser arrangement, internal combustion engine, and vehicle comprising such a control valve are also disclosed.

Abstract: The disclosure relates to a hydraulic camshaft adjuster having a stator, which is synchronously rotatable with a crankshaft of the internal combustion engine, a rotor rotatably arranged relative to the stator and synchronously rotatable with a camshaft, two groups of working chambers that can each be loaded with a pressure medium in a pressure medium circuit, and a central locking device for locking the rotor in a defined position relative to the stator. The stator is delimited on a first front end by a multi-part locking cover. The multi-part locking cover has a first locking cover and a second locking cover. A first stage of a mechanical ratchet is formed on the first locking cover, and at least one further stage of the mechanical ratchet is formed on the second locking cover.

Abstract: A valve for an internal-combustion engine may include a body. The body may include a titanium alloy. At least one region of the body may include a nitrided layer. The nitrided layer may include at least one of titanium nitrides and aluminium-titanium nitrides.

Abstract: A gas exchange valve in an internal combustion engine includes a valve head having a sealing face structured to contact a valve seat and defining a face angle. The valve head further includes an under-head fillet transitioning from the inner sealing face to a valve stem, and defining a chordal stress zone within the under-head fillet. The under-head fillet is formed by a material distributed according to a stress-diffusing contour within the chordal stress zone, and is blended with the inner sealing face at a blend angle that is less than the face angle and is in a range of about 18° to about 35°. The valve head contour is associated with resistance to chordal stress-induced fatigue failure.

Abstract: The present invention belongs to the technological field of cooling compressors and, particularly, constructive details of lubricating oil pumps of cooling compressors. Problem to be solved: The current state of the art does not describe any solution of oil pump and construction of rotating shaft capable of achieving the correct lubricating of the moving components that include the compression functional unit of cooling compressor, which operating speed can vary between 700 and 4500 rpm. Solution of the problem: It is disclosed is a variable speed cooling compressor which tubular extension of the oil pump, the inner axial channel of the rotating shaft, the axial channel extension of the rotating shaft and the inner cam channel segment of the rotating axis are all fluidly connected to each other in order to conform a single integrated channel.

Abstract: Systems and apparatuses include a generator set including an alternator, a transmission coupled to the alternator and structured to receive power from an engine, and an oil heating system including an oil pan structured to provide lubricating oil to the engine and including an oil outlet and an oil inlet, a plurality of immersion heaters positioned at least partially within the oil pan, a return line positioned within the oil pan, coupled to the oil inlet, and including a plurality of apertures for providing oil into the oil pan, each aperture aligned with a corresponding one of the plurality of immersion heaters, and a pump receiving oil from the oil outlet, and providing oil to the oil inlet.

Abstract: A unit (10) for the regulation or control of a fluid pressure, having at least one housing section (13, 14) and a switching film (22) connected to the at least one housing section (13, 14) for switching at pressure differentials relative to an ambient pressure acting on the switching film (22), and for the regulation, release or blocking of a flow of the fluid between an inlet (28) and a discharge (30) for the fluid. The switching film (22) is made out of a polymer material having fluorine and carbon. In this arrangement, a hole cross-section (40) of the at least one housing section (13, 14) is closed off by the switching film (22). A method of forming a fluid-tight connection is also disclosed.

Abstract: Methods and systems are provided for adjusting and troubleshooting an adjustable exhaust valve of a variable exhaust tuning system. In one example, a method may include comparing engine startup conditions to engine conditions of a last engine off event, adjusting a position of the adjustable exhaust valve, and providing a diagnostic summary to a vehicle operator based upon the results of the comparison and adjustment.

Abstract: A boiler or other fired vessel includes a housing with a burner at one end, a furnace downstream of the burner, a convection section downstream of the furnace and a flue gas outlet downstream of the convection section. A first means for loading a reducing agent comprising at least two injectors is located downstream of the furnace. A second means for loading a reducing agent is located downstream of the first means for loading a reducing agent. A selective catalytic reduction catalyst is located either downstream of the second means for loading a reducing agent or adjacent the second means for loading a reducing agent such that the catalyst is provided to the boiler or other fired vessel approximately simultaneously with the reducing agent from the second means for loading the reducing agent.

Abstract: A dosing and mixing arrangement including an exhaust conduit defining a central axis; a mixing conduit positioned within the exhaust conduit; a dispersing arrangement (e.g., a mesh) disposed at the upstream end of the mixing conduit; an injector coupled to the exhaust conduit and configured to direct reactants into the exhaust conduit towards the mesh; and an annular bypass defined between the mixing conduit and the exhaust conduit for allowing exhaust to bypass the upstream end of the mixing conduit and to enter the mixing conduit downstream of the mesh.

Abstract: An improved catalytic converter includes a Coanda chamber assembly connected upstream of a catalytic reaction chamber, where the exhaust pipe is to be connected to the Coanda chamber assembly. The Coanda chamber assembly forms a Coanda chamber that has at least one narrower section and at least one wider section immediately downstream of the narrower section, with openings formed at the narrowest point of a narrower section. In operation, when engine exhaust gas is fed into the Coanda chamber, the gas pressure increases at the narrower section, and drops when the gas enters the wider section. As a result, air is sucked into the Coanda chamber via the openings and mixes with the exhaust gas. This lowers the exhaust temperature and enhances the efficiency of the catalytic reactions in the catalytic reaction chamber.

Abstract: Heat from a rotating prime mover(s) driving a fluid shear pump, heat from the prime mover and any exhaust heat generated by the prime mover is collected. The heat energy collected from all of these sources is transmitted through heat exchangers to a fluid where heat energy is desired. This fluid heating process is performed in the absence of an open flame.

Abstract: The present disclosure relates to a device and a method for removing a carbon from an oxygen sensor. The device may include an oxygen sensor installed in a gas exhaust line of a vehicle to measure an oxygen content in an exhaust gas, a valve for transferring a high-pressure air flow to the oxygen sensor, a valve actuator for driving the valve, and a controller for controlling the valve actuator to open the valve when an abnormality occurs in the oxygen sensor. When the abnormality has occurred in the oxygen sensor, the valve for transferring the high-pressure air flow is opened, and a temperature of zirconia provided in the oxygen sensor is raised to remove a carbon deposited on the oxygen sensor.

Abstract: An abnormality determination device is used in an exhaust gas purification system. The exhaust gas purification system is disposed in an exhaust gas passage of an internal-combustion engine and includes an injection valve for injecting a liquid reducing agent to a NOx purification catalyst for purifying NOx in an exhaust gas, and a pump for pressurizing and supplying the reducing agent to the injection valve via a reducing agent passage. The abnormality determination device includes an acquisition section acquiring a rotation speed of the pump when the injection valve is injecting the reducing agent as an injection time rotation speed; and a determiner determining whether the injection valve has an abnormality based on the injection time rotation speed.

Abstract: An exhaust device for a saddle-type vehicle having a pipe section with respect to a vehicle body and housing a catalyzer therein, and a muffler connected to a rear end of the pipe section includes an upstream oxygen sensor disposed on the pipe section and positioned upstream of the catalyzer and a downstream oxygen sensor disposed on the pipe section and positioned downstream of the catalyzer. The pipe section includes a larger-diameter portion having an increased diameter for housing the catalyzer therein. The downstream oxygen sensor is disposed in the larger-diameter portion. The upstream oxygen sensor and the downstream oxygen sensor are positioned upwardly of a central line of the larger-diameter portion with respect to the vehicle body as viewed in side elevation of the vehicle body.

Abstract: A cooling fan module is provided. The cooling fan module may include a frame, a fan assembly, a number of guide vanes, and a cylindrical deflector. The frame may include a sidewall that defines an opening and an outer periphery. The fan assembly may be disposed within the opening and include fan blades extending from a hub and terminating at a fan ring. The fan ring may have a curved profile. The number of guide vanes may be disposed radially around the opening. The cylindrical deflector may extend axially from the sidewall and radially surround the number of guide vanes. The cylindrical deflector may be disposed radially between the number of guide vanes and the outer periphery.

Abstract: A cooling apparatus includes: a radiator promoting heat radiation of cooling water of an engine; a first flow path circulating the cooling water discharged from the engine through the radiator to the engine; a second flow path circulating the cooling water discharged from the engine to the engine without through the radiator; a thermostat attached in a junction of the first and second flow paths, closing the first flow path when a temperature of the cooling water in the second flow path is lower than a threshold value, and opening the first flow path when the temperature of the cooling water in the second flow path is equal to or higher than the threshold value; and a third flow path communicating a part, of the first flow path between the engine and the radiator, with a part, of the first flow path between the radiator and the thermostat.

Abstract: A vehicle propulsion system includes an engine having a coolant inlet and a coolant outlet, a coolant pump having an outlet in communication with the engine coolant inlet, a pressure sensor in fluid communication with the engine coolant outlet and that generates a pressure signal indicative of a pressure in the engine coolant outlet, and a controller in communication with the pressure sensor and the coolant pump. The controller is programmed to control a flow of coolant through the engine from the coolant pump based upon the pressure signal.

Abstract: A heat exchanger includes crimping plates fixed to an inlet and an outlet of a duct and having frame shapes corresponding to opening shapes of the inlet and the outlet. Each of the crimping plates includes a beam connecting two different positions on an inner periphery of the crimping plate. The beam has a rib.

Abstract: Methods and systems are provided for optimizing collection, usage, and processing of water on-board a vehicle. Water is harvested from various locations of the vehicle including from engine operation, surface condensation, and via dehumidification. Water is processed differently based on the source of the water as well as the intended use.

Abstract: Methods and systems are provided for expediting emission control device heating. In one example, a method may include flowing air from an intake of an engine to one or more emission control devices via an air injection system while operating a turbocharger via an electric motor to maintain a desired airflow to the engine in response to an emission control device heating condition. In this way, fresh air is provided to the one or more emission control devices without degrading engine performance or increasing engine speed.

Abstract: To provide controller and control method for internal combustion engine that can suppress motor built in actuator from overheating when waste gate valve is controlled to near fully closed position or fully opened position, and can suppress from causing deterioration of fuel efficiency by consuming large power wastefully even in light load operation region in which pressure of exhaust gas is low relatively. A controller for internal combustion engine calculates basic operating amount for bringing real opening degree close to target opening degree; calculates an operating amount obtained by performing upper limitation of basic operating amount by first limit value, as final operating amount, in case of supercharging driving state; and calculates an operating amount obtained by performing upper limitation of basic operating amount by second limit value smaller than first limit value, as final operating amount, in case of non-supercharging driving state.

Abstract: An electronic compressor bypass valve (eCBV) module includes a pedestal housing, and a compressor bypass valve mounted to the pedestal housing. An inlet port, a first outlet port, and a second outlet port are integrally formed as part of the pedestal housing, where pressurized air flows into the inlet port. The eCBV module also includes a venturi device at least partially disposed in the second outlet port. When the compressor bypass valve is in an open position, a portion of the pressurized air flows through the first outlet port, and a portion of the pressurized air flows from the inlet port through the venturi device and through the second outlet port. When the compressor bypass valve is in the closed position the pressurized air is prevented from flowing into the first outlet port, and all of the pressurized air flows through the venturi device and through the second outlet port.

Abstract: An exhaust-flow-rate control valve for controlling a flow rate of exhaust gas flowing through an exhaust flow passage includes: a valve rod; a valve body having a flat plate shape and configured to rotate about the valve rod; and a valve housing having a cylindrical shape and defining a part of the exhaust flow passage inside the valve housing.

Abstract: An e-charger includes an outer housing and a rotor supported for rotation within the outer housing. A motor assembly is housed within the outer housing and includes an electric motor and a motor case. The electric motor is encased within the motor case. The electric motor is configured to drivingly rotate the rotor within the outer housing. Furthermore, the e-charger includes a cooling system configured to receive a coolant. The cooling system includes a manifold passage defined in the outer housing. The cooling system includes a first motor cooling circuit and a second motor cooling circuit that are cooperatively defined by the outer housing and the motor case. The first motor cooling circuit and the second motor cooling circuit are fluidly connected to the manifold passage. The manifold passage is configured to distribute a flow of the coolant between the first motor cooling circuit and the second motor cooling circuit.

Abstract: An engine system having a secondary air injection device include: an engine having a plurality of cylinders; a first intake line in which intake air supplied into the cylinder flows; a second intake line in which intake air supplied into the cylinder flows; a bypass line connecting the first intake line and the second intake line; a first electric supercharger and a second electric supercharger disposed in the first intake line and the second intake line, respectively; an exhaust manifold connected with the plurality of cylinders; an exhaust line connected with the exhaust manifold such that exhaust gas flows to the exhaust line through the exhaust manifold; an exhaust gas purification device disposed in the exhaust line; and a secondary air injection device injecting air into the exhaust manifold or the exhaust line from the intake line.

Abstract: A method for operating an internal combustion engine using a gas mixture that is supplied to the fossil fuel in the engine combustion chamber in addition to the combustion air and is produced by the electrolysis of water includes measuring a quantity of air drawn into the intake tract of the engine in accordance with a particular engine operating mode. The method further includes directly supplying, to the combustion air per unit of volume of combustion air, a same, limited quantity of Brown's gas that acts as an additive, that is produced by means of an electrolyzer operated using a pulsating current, and that contains energy-enriched, gaseous water molecules. The percentage of the gas molecules present in the fuel during the combustion process is limited.

Abstract: A rotary engine, parts thereof, and methods associated therewith is provided. The engine is modular and adjustable to accommodate a variety of requirements and preferences. The system includes a combustion assembly having a housing and a power rotor positioned therein. The power rotor rotates in a first direction from the beginning of each combustion process through the end of each exhaust process. The system also includes a compression assembly linked to the combustion assembly such that the compression rotor rotates in the first direction from the beginning of each intake process through the end of each compression process. A tank assembly in fluid communication with the compression assembly and the combustion assembly provides stability to the system while eliminating or otherwise reducing transitional loses.