Abstract: Embodiments of the present disclosure are directed towards a system that includes a recirculation system. The recirculation system includes a compressor discharge air line extending from a compressor to an air intake. The compressor discharge air line is configured to flow a compressor discharge air flow, and the air intake is configured to supply an air flow to the compressor. An ejector is disposed along the compressor discharge air line between the compressor and the air intake. The ejector is configured to receive and mix the compressor discharge air flow and a turbine exhaust flow to form a first mixture.

Abstract: In one embodiment, a method for an engine comprises operating the engine with an upstream exhaust sensor, intermediate exhaust sensor, and downstream exhaust sensor each indicating rich, adjusting engine operation to operate the engine with an upstream exhaust sensor, intermediate exhaust sensor, and downstream exhaust sensor each indicating lean, adjusting engine operation to operate the engine with the upstream exhaust sensor indicating rich and the intermediate and downstream exhaust sensors each indicating lean, and indicating degradation of an SCR catalyst based on when the intermediate and downstream exhaust sensors switch from lean to rich.

Abstract: A system and method for initiating an engine after-run state and controlling a nitrogen oxide sensor self-diagnostic tool are provided. The system may include an internal combustion engine, an exhaust system, a selective catalytic reduction (SCR) device and at least two NOx sensors to measure the efficiency of the SCR device and a controller or host machine. The controller, via the present method, executes a first control action to disable the self-diagnostic tool when one of an occurrence of a particulate filter regeneration event and a non-occurrence of a calibration threshold is detected. The controller executes a second control action, initiating an engine after-run state and enabling the self-diagnostic tool when one of a non-occurrence of a particulate filter regeneration event and an occurrence of the calibration threshold is detected.

Abstract: The invention relates to a bypass valve, particularly a two-way valve for exhaust gas flows from motor vehicles, having a valve housing and an actuating mechanism with a valve flap and two ports for fluid outlet, which are embodied as alternately sealable by the valve flap, and one port for fluid intake, characterized in that at each of the ports for fluid outlet an adapter and sealing ring is provided, arranged at least partially and fluid-tight in the valve housing, wherein the valve flap can be positioned fluid-tight on the adapter and sealing ring.

Abstract: Systems and methods for a vehicle brake booster having first and second chambers separated by a diaphragm coupled to a brake pedal are provided. In one example approach, a method comprises applying an exhaust pressure from a vacuum pump to a first chamber of the brake booster, and applying a vacuum pressure from the vacuum pump to a second chamber of the brake booster.

Abstract: A pump displacement control cylinder is configured to control the displacement of a hydraulic pump according to pressure of hydraulic fluid and switches the discharge direction of the hydraulic fluid from the hydraulic pump according to the supply direction of the hydraulic fluid to the pump displacement control cylinder. A forward and backward progression switching valve is configured to switch the supply direction of the hydraulic fluid to the pump displacement control cylinder. A pressure control valve is configured to control the pressure of the hydraulic fluid supplied to the pump displacement control cylinder according to a command value input to the pressure control valve. A control section is configured to execute pump shuttle control which reduces the command value to the pressure control valve when switching between forward and backward progression using a forward and backward progression operation member.

Abstract: An arrangement for charging an accumulator with hydraulic fluid is provided. The accumulator is used in a hydraulic boom suspension system for a lift arm of a vehicle and the arrangement includes a first hydraulic pump arranged to supply hydraulic fluid to a hydraulic cylinder system of the lift arm, and a second hydraulic pump arranged to supply hydraulic fluid to a second hydraulic system. The second hydraulic pump is further arranged to supply hydraulic fluid for charging the accumulator.

Abstract: An improved diaphragm type chemical dosing pumps can be designed as both a variable displacement accurate dosing pump and a fixed displacement accurate dosing pump. The improved dosing pump provides a required supply of pressurized fluid, to be called hereafter as process fluid, to an injection point against varying gas or liquid pressures. By eliminating the use of elastomeric sealing, the failing of the pump due to seal wear is eliminated. An internal pressure relief valve protects the pump mechanicals from premature failure. Use of a spring assisted suction assists positive suction for very accurate dosing. The working fluid is a driver fluid that is used to lubricate working components of the pump. The angled ports minimize friction losses to further improve pump efficiency and also eliminate building up of air pockets.

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 overrun air recirculation valve (1) having a housing (2) which delimits a housing interior (3); a diaphragm (4) which has a diaphragm area (AO) and which divides the housing interior (3) into a first chamber (5) and a second chamber (6); and a valve plunger (7) which has a plunger area (AU), which is connected to the diaphragm (4) via a valve rod (8) and which is preloaded into a closed position by means of a spring (9). The diaphragm area (AO) is greater than the plunger area (AU).

Abstract: A turbocharger system comprises a first relatively small high-pressure (HP) turbocharger (1) and a second relatively large low pressure (LP) turbocharger (2). The turbine (6) of the LP turbocharger (2) is connected in series downstream of the turbine (4) of the HP turbocharger (1) in a first exhaust gas passage (11). An exhaust bypass flow passage (12) provides a bypass flow path around the HP turbine (4). A rotary valve (8) is located at a junction of the bypass flow passage (12) and a first exhaust gas flow passage (11). The rotary valve (8) comprises a valve rotor (19) which is rotatable to selectively permit or block flow to the LP turbine (6) from either the first exhaust gas passage (11) or the bypass gas passage (12).

Abstract: A system can include a turbine housing that defines a turbine wheel space, an exhaust chamber in fluid communication with the turbine wheel space and a control shaft bore that extends from the exhaust chamber to an outer surface of the turbine housing; a blunt body positionable above the turbine wheel space where the blunt body includes an opening and a lumen in fluid communication with the opening; and a suction conduit connectable for fluid communication between the control shaft bore of the turbine housing and the lumen of the blunt body. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.

Abstract: A combined internal combustion engine and waste heat recovery system is provided. The combined internal combustion engine and waste heat recovery system comprises the internal combustion engine, the waste heat recovery system, and a ratio adapting device. The internal combustion engine includes a turbocharger. The waste heat recovery system comprises a condenser, a pump, a heat exchanger, and an expander. The expander is in driving engagement with the turbocharger. The ratio adapting device is drivingly engaged with an output of the internal combustion engine and the expander of the waste heat recovery system. The ratio adapting device may be engaged to transfer energy from at least one of the turbocharger and the expander to the output of the internal combustion engine.

Abstract: The invention in the preferred embodiment represents a method of powering any application requiring a motive body of steam in order to produce power, using stoichiometric oxyhydrogen combustion to vaporize a requisite flow of water. The steam-generation process produces water as the sole product of combustion. Applications include providing motive steam for thermal power generation systems within the electric power industry, electric-power generation systems within the railroad locomotive industry, and turbine-driven propulsion systems both water- and aeronautical-based.

Abstract: Combustion chamber housing (10) and gas turbine (1) outfitted therewith. The combustion chamber housing has a flame tube (20) and a casing tube (30) which surrounds the flame tube and which has a plurality of openings (31) in its wall through which air outwardly streaming upon the casing tube can penetrate radially into an intermediate space (40) formed between the casing tube and flame tube. The invention ensures a more uniform distribution of the in-flowing air around the flame tube. This is achieved inter alia in that a plurality of guide ribs (50) are provided which are arranged in the intermediate space so as to be distributed around the circumference of the two tubes and which extend in each instance radially between the casing tube and flame tube and parallel to a longitudinal direction (LR) of the two tubes so that the intermediate space is divided by the guide ribs into a plurality of longitudinal channels (41).

Abstract: An air-to-air cooler has a heat exchanger integrated to a housing. A first passage extends through the housing for directing a flow of cooling air through the heat exchanger. A second passage extends through the housing for directing a flow of hot air to be cooled through the heat exchanger. The first passage has a cooling air outlet tube disposed downstream of the heat exchanger. The cooling air outlet tube extends across the second passage between the heat exchanger and a hot air inlet of the second passage. The hot air inlet is disposed to cause incoming hot air to flow over the cooling air outlet tube upstream of the heat exchanger. An ejector drives the flow of cooling air through the first passage of the air-to-air cooler. A portion of the hot air flow may be used to drive the ejector.

Abstract: A fuel boost module for a gas turbine engine having a base, a fuel inlet configured to receive fuel from a fuel supply, a fuel outlet configured to deliver fuel to the gas turbine engine, a filter assembly configured to filter the fuel, a fuel controller configured to regulate pressure of the fuel that will be delivered to the gas turbine engine, a boost pump configured to pressurize the fuel, and a main pump configured to pressurize the fuel.

Abstract: A premixer includes an air tube formed in a burner tube defining a longitudinal axis, and a coaxially disposed fuel tube with a turbulence enhancing chevron outlet. The fuel tube may include an exterior tube and an interior tube with the interior tube, the exterior tube or both having chevron outlets. The chevron outlets may be tapered and notched.

Abstract: A fuel nozzle for use in a turbine engine is provided. The fuel nozzle includes at least one premixer tube including a tube wall and a plurality of perforations defined therein and extending through the tube wall. The plurality of perforations are configured to channel a flow of air therethrough. The fuel nozzle also includes a liquid fuel plenum positioned upstream from the premixer tube, and at least one fuel injector coupled in flow communication with the liquid fuel plenum and the at least one premixer tube. The at least one fuel injector is configured to channel a flow of liquid fuel from the liquid fuel plenum into the premixer tube.

Abstract: A combustion apparatus includes a combustion chamber, a pre-chamber and a first device for mixing a fuel with an oxidant, the first device being located upstream of the pre-chamber. The combustion chamber and the pre-chamber share a common first and second wall spaced to each other building a cavity. The first wall exhibits at least one first opening in the area of the combustion chamber for introducing a coolant into the cavity. Further, the combustion apparatus has a channel for feeding the oxidant to the first device, whereby the channel is formed by a housing element of the combustion apparatus and the common first wall of the combustion chamber and the pre-chamber. The at least one first opening is located in the area of the combustion chamber. The first wall exhibits at least one second opening, located in the area of the pre-chamber, for introducing the coolant into the cavity.

Abstract: A gas turbine combustor includes: multiple gaseous fuel nozzles to inject gaseous fuel; a manifold to distribute gaseous fuel to the multiple gaseous fuel nozzles; a burner flange to secure a burner to an end cover; and a burner body to connect the manifold and the burner flange. Gaseous fuel passages are provided in the end cover, the burner flange, and the burner body. The gaseous fuel passage communicates with the manifold. A second manifold is provided in the burner flange. The gaseous fuel passage is provided in the burner body to make the second manifold communicate with the first mentioned manifold.

Abstract: The present invention relates to a gas-turbine combustion chamber with an outer combustion chamber wall concentric to a gas-turbine center axis and with an inner combustion chamber wall, with several burners arranged spread over the circumference of the combustion chamber, and with air inlet recesses which in at least one radial plane are provided spread over the circumference on an outer combustion chamber wall and on an inner combustion chamber wall, where the burner is designed to form a flow provided with a swirl and where air inlet recesses assigned to a burner are dimensioned in differing size in order to generate airflows of differing size, characterized in that at least one of the respective air inlet recesses is designed for supplying air in the flow direction of the swirl of the combustion chamber flow and is provided with flow guidance walls.

Abstract: The present invention relates to a tile fastening arrangement of a gas-turbine combustion chamber having a combustion chamber wall with tiles fastened to said combustion chamber wall at a distance from the latter, characterized in that the tile is provided with an annular flange arranged on its side assigned to the combustion chamber wall, said flange being dimensioned to match a recess of the combustion chamber wall and fastened to the combustion chamber wall by means of a fastening element which engages in the combustion chamber wall.

Abstract: A transition piece of a combustor that sends high temperature combustion gas to a turbine includes a cylindrical body wall and cooling air passages. The passages are formed in the body wall so as to extend in an axial direction thereof, and each of the passages has cooling air inlet ports opened at an outer circumferential surface of the transition piece and cooling air outlet ports opened at an inner circumferential surface of the transition piece. The cooling air outlet ports form a plurality of lines in a direction oblique with respect to the axial direction of the body wall. A first distance between a first line of the cooling air outlet ports and a second line of the cooling air outlet ports adjacent to the first line is larger than a second distance between the cooling air outlet ports adjacent to each other.

Abstract: A cooled combustor seal having a plurality of channels enabling cooling air to pass from outside of a combustion chamber to cool an area inside the combustion chamber around the seal is disclosed. The channels may be provided through a slider, a housing, and/or a washer of the combustor seal. One set of channels or multiple of sets of channels may be provided in the combustor seal. Each of these sets of channels may be in the slider, housing, or washer. The cooled combustor seal may be used in conjunction with an igniter to purge a cavity between the seal and the igniter.

Abstract: Embodiments of the disclosure include a combustor assembly. The combustor assembly may include one or more fuel plenums. The combustor assembly may also include one or more fuel distribution plates disposed within the fuel plenums. Moreover, the combustor assembly may include a number of mixing tubes disposed at least partially within the fuel plenums and extending through the fuel distribution plates. In certain aspects, the mixing tubes may each include a reduced diameter about the fuel distribution plates to form an annulus therebetween.

Abstract: A fuel nozzle for use in a turbine engine is provided. The fuel nozzle includes a fuel injector configured to discharge a flow of fuel therefrom and a premixer tube coupled in flow communication with the fuel injector. The premixer tube is configured to receive the fuel flow and a flow of air at an upstream end of the premixer tube, wherein the fuel and air are progressively mixed as the fuel and air are channeled through the length of the premixer tube.

Abstract: A gas turbine engine includes: a compressor; a combustor downstream of the compressor along a gaspath; a turbine downstream of the combustor along the gaspath; a plurality of wash nozzles having outlets along the gaspath; and at least one inlet fitting coupled to the wash nozzles to bound a wash flowpath from an inlet port of the at least one inlet fitting to said outlets of said nozzles. The plurality of stages include: a stage upstream of blades of one compressor section; and another stage between said blades of one compressor section and blades of another compressor section.

Abstract: A premixer includes an air tube formed in a burner tube defining a longitudinal axis, and a coaxially disposed fuel tube with a turbulence enhancing chevron outlet. The fuel tube may include an exterior tube and an interior tube with the interior tube, the exterior tube or both having chevron outlets. The chevron outlets may be tapered and notched.

Abstract: A system and method control a gas turbine subject to fuel composition variation. The method includes operating a first effector to control the gas turbine based on fuel composition. The method also includes operating a second effector to maintain operation of the first effector within a first boundary limit, the second effector operation being initiated when the operating the first effector reaches a second boundary limit within the first boundary limit.

Abstract: The gas turbine engine has a bleed air aperture formed in the radially outer wall upstream from the combustor and a bearing cavity formed within the radially inner wall, at least two bearing seals enclosing at least one bearing in the bearing cavity and separating the bearing cavity from associated buffer air entry points, an oil supply system including oil paths leading to each of the bearings; a buffer air supply system including buffer air paths leading to each of the entry points.

Abstract: A turbine has a first and second inner wall, an inner casing and a shield element. The first and second inner walls are mounted to the inner casing such that an inner volume for working fluid is separated from an outer volume for cooling fluid. The first and second inner walls and inner casing are arranged to form a cavity in outer volume. The shield element is arranged inside cavity to separate cavity in an inner and outer region in a radially outer position to the inner region. A gap is formed between the first and second inner walls for working fluid between the inner volume and inner region. The shield element is arranged in cavity to form a fluid inlet for injecting cooling fluid from outer region to inner region for generating a predefined recirculation of working fluid and cooling fluid inside inner region.

Abstract: The disclosure relates to a method for determining a temperature in a pressurized flow path of a gas turbine comprising the steps of sending an acoustic signal from an acoustic signal emitting transducer across a section of the pressurized flow path, detecting the acoustic signal with a receiving transducer, measuring the time needed by the acoustic signal to travel from the acoustic signal emitting transducer to the receiving transducer, calculating the speed of sound, and calculating the temperature as a function of the speed of sound, the heat capacity ratio (?) and a specific gas constant (Rspec) of the gas flowing in the pressurized flow path. Besides the method, a gas turbine with a processor and transducers arranged to carry out such a method is disclosed.

Abstract: A dovetail attachment seal for a turbomachine includes an outer seal member having a first end that extends to a second end through an intermediate portion, and at least one articulating element encapsulated, at least in part, by the outer seal member at one of the first and second ends. The at least one articulating element is slidingly disposed within the outer seal member.

Abstract: A turbomachine component includes a first housing portion having a first end that extends to a second end. At least one of the first and second ends includes a first sealing surface having a seal receiving passage. A second housing portion includes a first end that extends to a second end. At least one of the first and second ends includes a second sealing surface configured and disposed to register with the first sealing surface. A seal member is provided in the seal receiving passage. The seal member includes a plurality of bristles that extend toward the second sealing surface.

Abstract: A method of operating a climatic beam air conditioning system includes operably connecting one or more controllers to two or more climatic beams in two or more locations. Inputs are communicated from the two or more locations to the one or more controllers. Each controller of the one or more controllers is operably connected to two or more climatic beams. Independent commands are communicated to each climatic beam of the two or more climatic beams from the one or more controllers to control operation of the two or more climatic beams based on the inputs communicated from the two or more locations.

Abstract: A battery thermal control system includes a battery, a heater core disposed in fluid communication with the battery and a vehicle HVAC system having an evaporator thermally interfacing with the heater core. A battery thermal control method is also disclosed.

Abstract: Novel method of preserving the internal environmental air temperature and thereby stabilizing the temperature within the cargo compartment of a transport container, and thereby protecting the cargo itself from degradation due to temperature fluxuations, including a freeze and heat barrier attained through the characteristics of the article of manufacture, composition of matter, and method of preservation of the internal environmental air temperature and proximate cargo within said cargo compartment; along with a machine or devise that is used as either a stand-alone container, or as an insert to retrofit existing containers so as to make said retrofitted devices capable of providing cooling over an extended period of time are disclosed. The inserted cargo compartments described herein are particularly useful for temperature-stabilizing cargo compartment shipping containers that are required to maintain a temperature below ambient for a time sufficient to complete delivery of the container and its contents.

Abstract: A refrigeration system includes a powered barrier or air door that controls air flow between refrigerated compartments. The powered door includes a powered actuator that is electrically connected to and in parallel with an electric heating element configured to melt ice and/or frost that could otherwise interfere with operation of the door. A switch determines if the door is opened or closed and a controller provides electrical power to the powered actuator and the electric heating element until the door shifts to the desired opened or closed position.

Abstract: An aircraft air conditioning system comprises an ambient supply line, an ambient air cooling device connected to the ambient air supply line and adapted to cool ambient air flowing through the ambient air supply line, an ambient air discharge line connected to the ambient air cooling device and being connectable to an aircraft cabin to supply ambient air cooled by the ambient air cooling device to the aircraft cabin, and a refrigerating apparatus. The refrigerating apparatus comprises a refrigerant circuit allowing the flow of a two-phase refrigerant therethrough and is designed to convert the two-phase refrigerant, upon flowing through the refrigerant circuit, from the liquid state of aggregation into the gaseous state of aggregation and thereafter again back from the gaseous state of aggregation into the liquid state of aggregation. The refrigerant circuit of the refrigerating apparatus is adapted to supply cooling energy to the ambient air cooling device.

Abstract: The performance of a transport refrigeration system (12) having a transport refrigeration unit powered by a diesel engine is optimized by matching a capacity output of the transport refrigeration unit to an available shaft power of the diesel engine. The power consumption of the transport refrigeration may be controlled by selectively limiting refrigerant mass flow through the refrigerant circuit of the transport refrigeration unit in response to an operating engine load and an operating speed of the diesel engine.

Abstract: In accordance with an embodiment of the invention, there is provided a method of warming a heat exchanger array of a very low temperature refrigeration system, the method comprising diverting at least a portion of refrigerant flow in the refrigeration system away from a refrigerant flow circuit used during very low temperature cooling operation of the refrigeration system, to effect warming of at least a portion of the heat exchanger array; and while diverting the at least a portion of refrigerant flow, preventing excessive refrigerant mass flow through a compressor of the refrigeration system.

Abstract: An integrated refrigeration and air conditioning plant working in a cascade cycle with two different refrigerants for the low and high temperature circuits. The low temperature segment works with an ozone friendly synthetic refrigerant with a minimal amount of refrigerant charge, while the upper stage operates with another ozone friendly refrigerant with much lesser global warming potential than the one in the low stage. The upper and/or medium temperature circuit also services the air conditioning needs of the environment where the refrigerated equipment is located, such as the shop floor of a supermarket or a laboratory housing the cabinets that keep refrigerators.

Abstract: A bottom plate 1 has a projecting portion 1a that upwardly projects at a portion thereof to which a heater support 5 is attached, and a leg 3 is disposed at a portion that at least includes a position below a screw hole 1b formed in the projecting portion 1a.

Abstract: The present disclosure relates to a structure for reducing thermal displacement of a machine tool structure, and more particularly, to a structure for reducing thermal displacement of a machine tool structure capable of reducing thermal displacement of a structure in order to prevent processing precision from deteriorating due to deformation of a fixed structure by heat generated at a part where the fixed structure and a movable structure perform frictional motion together with each other. Accordingly, in order to resolve a technical problem, an object of the present invention is to provide a structure for reducing thermal displacement of a machine tool structure capable of preventing a structure from being deformed and distorted by reducing a temperature deviation over the entire structure by rapidly transferring heat to other parts when a temperature of a specific part of the structure is raised.

Abstract: A cooling system comprising: an evaporator for evaporating a refrigerant by performing heat exchange with outside air; a condenser for condensing a gas refrigerant into a liquid refrigerant by making a refrigerant and a cooling medium perform heat exchange with each other; a gas refrigerant pipe and a liquid refrigerant pipe connecting the evaporator and the condenser; and the evaporator including: an upper part header provided in a highest position of the evaporator, and connected with the condenser by the gas refrigerant pipe, through the gas refrigerant pipe a gas refrigerant flowing; a lower part header provided in a lowest position of the evaporator, and connected with the condenser by the liquid refrigerant pipe, through the liquid refrigerant pipe a liquid refrigerant flowing; a middle header provided in an intermediate position between the upper part header and the lower part header, and connected with the condenser by the liquid refrigerant pipe, through the liquid refrigerant pipe the liquid refrige

Abstract: A charging device (1) of a cooling system comprising a coolant fluid; said charging device (1) comprises a supply system (2) suitable to place a reservoir (10) of coolant fluid in fluidic connection with the cooling system; said charging device (1) comprises measurement means (3) of the coolant fluid, comprising a pressure sensor (3a) suitable to measure the pressure of the coolant fluid in the cooling system and a thermometer (3b) suitable to measure the temperature of the coolant fluid in the cooling system; a connection body (4) suitable to functionally and simultaneously connect the supply system (2) and the measurement means (3) to the cooling system; and a control unit (5) suitable to measure at least the quantity of coolant fluid present in the cooling system as a function of said temperature and said pressure.

Abstract: An evaporative cooler, and associated method, that includes an evaporative pad including a liquid coolant-receiving surface at which a liquid coolant distributed to the evaporative pad is received and thereafter passes into the evaporative pad. The evaporative cooler also includes a liquid coolant distribution trough that includes an upper portion configured to hold liquid coolant and a lower portion contiguous with the upper portion. The lower portion includes an opening and a fabric distribution layer in place over the opening through which the liquid coolant held in the upper portion of the liquid coolant distribution trough passes and is distributed to the liquid coolant-receiving surface of the evaporative pad.

Abstract: A water filter is provided. The water filter includes a check valve positioned at an opening of a casing. The check valve regulates a flow of liquid through the opening of the casing. By regulating the flow of liquid, the check valve can hinder spilling of liquid contained within the water filter during removal or replacement of the water filter.

Abstract: A water filter is provided. The water filter includes a casing with a filtering media disposed within the casing. The water filter also includes a plug and a water soluble support. The plug can impede a flow of water through the chamber in order to encourage replacement of the water filter.