Abstract: A side channel machine arrangement comprises a side channel machine (1) and a fluid connection device (2). The side channel machine (1) has a housing (5), side channels arranged in the housing (5) and fluid inlet openings (11) provided in said housing, which have a flow connection to the side channels to introduce a fluid to be conveyed into the side channels, at least one fluid outlet, which is provided on the housing (5) and has a flow connection to the side channels to discharge the fluid from the side channels, and an impeller that is mounted so that it can be rotatably driven in the housing (5). The fluid connection device (2) is used to connect the side channel machine (1) to a fluid supply line. It comprises a first fluid connection mechanism (3), which is provided on the housing (5) and has a flow connection to the fluid inlet openings (11), and a second fluid connection mechanism (4), which has a fluid inlet piece (29) for connection to the fluid supply line.

Abstract: A motor-driven compressor includes a compression mechanism. The compression mechanism includes a stationary scroll and a movable scroll. The movable scroll and the stationary scroll form a compression chamber. The motor-driven compressor has an electric motor accommodated in a motor chamber, a suction pressure zone, a discharge chamber, and an oil passage, which is connected either to the compression chamber or the discharge chamber. The electric motor includes a rotary shaft and drives the movable scroll via the rotary shaft. A main bearing located in the vicinity of the compression mechanism rotationally supports the rotary shaft. The rotary shaft has an in-shaft passage. The oil passage has a radial passage, which is directly connected to the in-shaft passage, and the in-shaft passage has an outlet, which opens to the motor chamber. The main bearing is exposed in the oil passage. The motor chamber is the suction pressure zone.

Abstract: Methods and systems are provided for providing auxiliary heat to a charge air cooler to reduce condensate formation. A coolant valve may control the delivery of heated engine coolant to the inlet side of the charge air cooler. The coolant valve may be adjusted based on condensate formation in the charge air cooler and a temperature at the charge air cooler outlet.

Abstract: The invention relates to a pump for pumping contaminated liquid comprising solid matter, the pump comprising a hydraulic unit (2), a drive unit (3), and a sealing unit (4), the hydraulic unit having a pump chamber (5) and an impeller (8) that is suspended in a drive shaft (9), said impeller and said drive shaft forming a rotatable unit, the sealing unit comprising a seal housing cover (15) that delimits said pump chamber (5) and that forms a seat for a drive shaft sealing assembly (16), the seal housing cover (15) comprising a first gap-delimiting part (20) and the rotatable unit comprising a second gap-delimiting part (21), which jointly define an axially extending gap (22) situated in the pump chamber. The pump is characterized in that, in each arbitrary radially extending plane taken through said gap (22), the first gap-delimiting part (20) has a broken circular outer gap-delimiting surface (23) at the same time as the second gap-delimiting part (21) has a broken circular inner gap-delimiting surface (24).

Abstract: A fluid working apparatus (100) including a housing structure (130) with an inlet (132) and an outlet (133). A working assembly positioned in the housing (130) has an inlet side and an outlet side with the at least one rotor (114) having a plurality of blades (115) positioned between the inlet and outlet sides. At least one return assembly (140, 142) is configured to return fluid flow from the outlet to the inlet side of the working assembly whereby a working fluid passes through the housing inlet (132), from the inlet side of the working assembly to the outlet side thereof while workingly engaging a first subset of the rotor blades (115), through the at least one return assembly (140, 142), from the inlet side of the working assembly to the outlet side thereof while workingly engaging a second subset of the rotor blades (115), and out of the housing outlet (133). A method of working a fluid is also provided.

Abstract: An offshore wind turbine foundation comprising a platform carrying a support for the wind turbine tower in its central region, and a plurality of leg guides in its peripheral region; and a plurality of legs, each of which may be movable between a raised position for transport and lowered positions for resting on the seabed. Each leg is capable of freely sliding in its guide.

Abstract: A system for reducing vibration in a wind turbine includes a mass structure having at least one hole extending therethrough; a rod having a top threaded portion, an upper level stop disposed on or below the threaded portion, and a fixed lower level stop disposed below the upper level stop. The mass structure has a designed weight and shape that, in combination with the adjustable axial distance between the upper level stop and the lower level stop, is designed to provide a properly tuned system for a particular frequency. A base having an aperture designed for receipt of the lower level stop therein is configured for attachment to a component of the wind turbine.

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: An internal combustion engine has a cylinder and an exhaust-gas turbocharger comprising a compressor arranged in an intake system and a turbine arranged in an exhaust-gas discharge system. Various lines are provided for conducting gases including 1) a bypass line branching off from the inlet system downstream of the compressor so as to form an inlet-side junction, and 2) a recirculation line branching off from the exhaust-gas discharge system upstream of the turbine so as to form an outlet-side junction which opens into the bypass line. A first control element at the outlet-side junction adjusts an exhaust-gas quantity conducted through the recirculation line. A second control element at the inlet-side junction has a first position that separates the bypass line from the cylinder and connects the intake line to the cylinder, and a second position that separates the intake line from the cylinder and connects the bypass line to the cylinder.

Abstract: A guided-vane rotary internal combustion engine including a plurality of working chambers which are separated from one another by way of vane assemblies which rotate with a rotor assembly about an axis employs a rotor assembly having a plurality of sectors wherein each sector is associated with a corresponding working chamber and a plurality of spark plugs wherein each spark plug is mounted within a corresponding sector for igniting an air/fuel mixture contained within a corresponding working chamber. A rotor disk is mounted upon the rotor assembly for rotation therewith and acts as a distributor through which energizing charges are conducted to the spark plugs. In addition, a controller is utilized for selectively activating or de-activating the working chambers of the engine upon the occurrence of a predetermined event.

Abstract: An engine assembly includes a camshaft having an exhaust cam lobe defining an exhaust lift region and an exhaust base circle region and an EGR cam lobe defining an EGR lift region and an EGR base circle region. The EGR lift region is rotationally offset from the exhaust lift region and the EGR base circle region is rotationally aligned with the exhaust lift region. An exhaust valve lift mechanism is engaged with an exhaust valve, the exhaust cam lobe and the EGR cam lobe and is operable in first and second modes. The exhaust valve remains closed when the EGR lift region engages the exhaust valve lift mechanism during the second mode and the exhaust valve is opened when the EGR lift region engages the exhaust valve lift mechanism during the first mode to provide exhaust gas flow into the combustion chamber during an intake stroke of the combustion chamber.

Abstract: A multi-stage turbocharger arrangement (TLA), having a high-pressure stage, the high-pressure turbine of which has an associated first bypass valve; and having a low-pressure stage which is arranged downstream as viewed in the flow direction of the exhaust gases and which has a low-pressure turbine and a second bypass valve, wherein at least one of the bypass valves is arranged in an associated, cooled housing module.

Abstract: A scroll compressor is provided. The scroll compressor may include a communication hole formed in a fixed scroll for communicating a discharge space and a thrust bearing surface with each other. This may reduce frictional loss between the fixed scroll and an orbiting scroll. Further, if a high vacuum state is about to occur during operation of the compressor, refrigerant in the discharge space may be introduced into the compression chambers through the communication hole. This may prevent the occurrence of a high vacuum state to thereby prevent damage to the compressor. Additionally, when the compressor is stopped, a pressure equilibrium operation may be performed through the communication hole.

Abstract: A novel heat exchange device to provide sufficient amounts of heat within a manifold including a working fluid within heating coils to generate electricity through an external combustion steam engine and electrical generator is provided. Such a novel heat exchanger includes coils that surround a central heating compartment thereby exposing such coils to gradually increasing temperatures such that the working fluid is first vaporized and then is ultimately superheated to a “dry” steam upon the point of egress of the heat exchanger leading to the engine portion. In this manner, greater efficiency in heating of the working fluid is accomplished with all of the fluid converted to a gas under pressure to effectuate the necessary engine, etc., movement for energy production.

Abstract: A sealing device includes a relatively dimensionally stable, elongated friction and/or wear element and an elastically-deformable elongated sealing element which rests lengthwise on the friction and/or wear element. The friction and/or wear element encompasses the sealing element at the ends of the friction and/or wear element.

Abstract: Device for improving the production of heat by cogeneration comprising a hot source producing steam which is expanded in a turbine the exhaust of which is connected to an air condenser (4) which removes heat, and comprising at least one second auxiliary condenser (5) in the form of a water condenser, the cooling liquid of this water condenser (5) being directed to a plant or equipment (B) in which its heat is extracted and used, then the liquid is returned to the water condenser; the water condenser (5) is incorporated into the air condenser (4).

Abstract: A compressor (10) comprises counter rotating and intermeshing twisted rotors (18) and (20) disposed in a housing having an air intake plate (28) and an outlet (16). The outlet (16) has a first edge (60) and a second edge (70) which nm parallel with a length of the rotors (18) and (20) respectively. A gap (62) is formed in the outlet near a junction of the edges (60) and (70). Air which is compressed by the rotors (18) and (20) is able to bleed through the gap (62) in advance of trailing edges of lobes of at least one of the rotors (18) passing its corresponding edge (60). Also the rotors (18), (20) are arranged so that the trailing edge of a lobe of rotor (18) passes edge (60) before a trailing edge of a lobe of rotor (20) passes edge (70).

Abstract: A scroll compressor is provided. The scroll compressor may include a case; a fixed scroll installed in the case; a wrap portion configured to form a compression chamber by being engaged with the fixed scroll; a base portion coupled to the wrap portion so as to be movable with the fixed scroll but not rotate in a circumferential direction; a drive motor coupled to a rear surface of the base portion, and configured to eccentrically rotate the base portion and the wrap portion; and a main frame installed in the case, and configured to support the base portion. A back pressure chamber that communicates with the compression chamber may be formed between the wrap portion and the base portion where a pressure of the back pressure chamber corresponds to a discharge pressure or an intermediate pressure between the suction pressure and the discharge pressure.

Abstract: A compressor of an exhaust-gas turbocharger has a compressor housing in which a compressor wheel is arranged. The compressor housing has an inlet region. A contour ring is arranged in the compressor housing between the inlet region and the compressor wheel. The contour ring, together with an adjacent wall of the compressor housing, delimits a circulation chamber which has a first connecting opening facing toward the inlet region and a second connecting opening adjacent to the compressor wheel. An exhaust-gas recirculation device has an inlet line which is arranged in the compressor housing and which opens out into the circulation chamber.

Abstract: A high pressure dome type rotary compressor including a casing and a compression mechanism disposed in the casing to compress gas in a cylinder chamber. The compression mechanism has a discharge port and a discharge valve. The discharge valve is opened in a discharge process and is closed during a period from when the discharge process is finished to when a next compression process is started. The compressor is arranged such that high pressure gas discharged from the discharge port in the discharge process is discharged outside the casing through space in the casing. An oil feed path is arranged to feed lubricant oil contained in a bottom of the casing to an inside of the discharge port in a period from a point in time in the discharge process to when the compression process is started.