Patents Issued in February 20, 2020
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Publication number: 20200056490Abstract: A variable pitch blade holder for use with a gas turbine engine. The variable pitch blade holder is configured to retain a blade and to rotate about a center axis with the blade during operation of the gas turbine engine. The blade holder is adapted to rotate about a pitch change axis to vary a pitch of the blade.Type: ApplicationFiled: August 14, 2018Publication date: February 20, 2020Inventor: Patrick Bailey
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Publication number: 20200056491Abstract: A blade retainer adapted for use in a gas turbine engine is configured to block axial movement of a blade. The blade retainer includes a first brace, a second brace, and a web that extends between the first brace and the second brace.Type: ApplicationFiled: August 14, 2018Publication date: February 20, 2020Inventor: Patrick Bailey
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Publication number: 20200056492Abstract: A turbine, a gas turbine including the same, and a method of assembling and disassembling the same, capable of ensuring stable sealing performance as well as facilitating assembly and disassembly are provided. The turbine may include a rotor disk having a lower hook, a plurality of turbine blades installed on an outer peripheral surface of the rotor disk, each of the turbine blades having a blade hook located above the lower hook, and a retainer sealing a cooling passage defined between the turbine blade and the rotor disk and supported by the blade hook and the lower hook.Type: ApplicationFiled: July 9, 2019Publication date: February 20, 2020Inventor: Victor SHEMYATOVSKIY
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Publication number: 20200056493Abstract: A blade track for a gas turbine engine includes segments and joints that couple the segments together. Each segment extends part-way around a central axis of the engine and the joints couple together adjacent segments to form a full hoop.Type: ApplicationFiled: October 23, 2019Publication date: February 20, 2020Inventors: Aaron D. Sippel, Daniel K. Vetters, Jun Shi, David J. Thomas, Andrew J. Eifert, Peter Broadhead
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Publication number: 20200056494Abstract: A ring for guiding variable-pitch blades and supporting an abradable coating for an aircraft turbomachine ring extends about an axis (X) and includes substantially radial orifices for mounting guiding sleeves intended each to receive a pivot of one of the blades. The ring may include a radially inner crown divided into sectors and supports the abradable coating. A radially outer annular ferrule may be divided into sectors and include the orifices for mounting the sleeves. In some embodiments, each ferrule sector is mounted about a crown sector by a circumferential sliding connection. The crown sector may include an immobilizer for rotationally immobilizing the sleeves of this ferrule sector about the axis.Type: ApplicationFiled: August 15, 2019Publication date: February 20, 2020Applicant: SAFRAN AIRCRAFT ENGINESInventors: Thomas Nolwenn Emmanuel Delahaye, Kamel Benderradji, Delphine Hermance Maxime Parent, Sandrine Hélène Quevreux
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Publication number: 20200056495Abstract: A gas turbine engine includes a case assembly and a stator segment. The case assembly defines a first slot having a first surface and a second surface. The stator segment includes a shroud body axially extends between a first body end and a second body end. A first flange extends into the first slot. The first flange has a first flange first side, a first flange second side, a first flange first surface and a first flange second surface each circumferentially extending between the first flange first side and the first flange second side. A first portion of the first flange first surface engages the first surface. A second portion of the first flange first surface. A third portion of the first flange first surface is spaced apart from the first surface.Type: ApplicationFiled: August 14, 2018Publication date: February 20, 2020Inventors: Jeffrey D. Ponchak, Alex Daniel Morrow, Charles H. Warner
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Publication number: 20200056496Abstract: A turbine-tip clearance control system offtake for a gas turbine engine, comprising: an air input duct in fluid communication with a compressor bleed air outlet, the air input duct comprising an exit aperture, the exit aperture defining an exit flow path for at least a portion of the air flowing in the air input duct during use of the gas turbine engine. The direction of airflow through the exit aperture, during use of the gas turbine engine, has at least a component that is anti-parallel to the direction of airflow in the air input duct in a region of the air input duct adjacent to the exit aperture. A turbine-tip clearance control system, a gas turbine engine for an aircraft and a method of supplying airflow to a turbine-tip clearance control system in a gas turbine engine are also disclosed.Type: ApplicationFiled: July 30, 2019Publication date: February 20, 2020Applicant: ROLLS-ROYCE plcInventors: Clare L. BEWICK, Robert GOULDS
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Publication number: 20200056497Abstract: A method of operating an aircraft hybrid gas turbofan during an idle mode of operation includes reducing a fuel flow to a primary gas turbine engine and boosting a high spool of the primary gas turbine engine using a secondary gas turbine engine via a first power linkage connecting the primary and secondary gas turbine engines, such that a net fuel reduction is achieved. The net fuel reduction accounts for fuel flow to the primary gas turbine engine and fuel flow to the secondary gas turbine engine.Type: ApplicationFiled: June 4, 2019Publication date: February 20, 2020Inventors: Neil Terwilliger, Daniel Bernard Kupratis, Michael M. Romero
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Publication number: 20200056498Abstract: A gear system for a geared turbofan engine is disclosed. The gear system includes a sun gear driven by a low spool shaft. The sun gear defines a sun gear diameter. A rotating carrier drives a fan. The carrier defines an outer carrier diameter and an inner carrier diameter. A non-rotating ring gear is also included. The ring gear defines a ring gear diameter and the ring gear diameter is smaller than the outer carrier diameter. A set of planet gears are mounted on corresponding rolling element bearing assemblies. Each roller element bearing assembly is supported within the carrier within a space defined between the carrier outer diameter and the carrier inner diameter. Each of the sun gear, ring gear and planet gears are substantially centered along a gearbox centerline transverse to an engine longitudinal axis and the gear system provides a speed reduction ratio between an input to the sun gear and an output from the carrier between 3:1 and 5:1.Type: ApplicationFiled: October 25, 2019Publication date: February 20, 2020Inventor: William G. Sheridan
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Publication number: 20200056499Abstract: The invention relates to a guide vane arrangement for a turbomachine, wherein the guide vane arrangement has a plurality of adjustable guide vanes that are rotatably mounted around an adjustment axis, at least one inner ring segment that is formed separately from the guide vanes, and a seal carrier that is formed separately from the at least one inner ring segment, wherein the at least one inner ring segment is fastened to one guide vane or to a plurality of guide vanes, and wherein the seal carrier is mounted in a spoke-centered manner with respect to the at least one inner ring segment, so that the seal carrier is movably mounted with respect to the at least one inner ring segment in the direction of at least one adjustment axis of at least one guide vane.Type: ApplicationFiled: August 16, 2019Publication date: February 20, 2020Applicant: MTU Aero Engines AGInventor: Frank Stiehler
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Publication number: 20200056500Abstract: A steam turbine (1) includes an inner casing (3) which has an inner casing body (15) in which a first main flow path (11) to which steam is supplied from an inner introduction port (16) is formed, an outer casing (5) which has an outer casing body (20) which forms a second main flow path (120) between the inner casing body (15) and the outer casing body (20) and an upper discharge port (23) and a lower discharge port (24) which are provided in the outer casing body (20) and through which exhaust steam (S2) is discharged, an upper valve (7) and a lower valve (8) which adjust a flow rate of the discharged exhaust steam (S2), and a control unit (9) which can independently control the upper valve (7) and the lower valve (8).Type: ApplicationFiled: October 20, 2017Publication date: February 20, 2020Inventors: Hideyuki UECHI, Hideaki SUGISHITA, Takumi MATSUMURA, Ryo EGAMI
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Publication number: 20200056501Abstract: A method of detecting rotor blade damage on a gas turbine engine is provided comprising the steps of taking an image of a rotor blade, processing the image to produce a blade profile using an edge detection algorithm and determining a rotor blade error by comparing the blade profile with a geometric model of a corresponding blade.Type: ApplicationFiled: July 17, 2019Publication date: February 20, 2020Applicant: ROLLS-ROYCE plcInventor: Benjamin J. EASTMENT
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Publication number: 20200056502Abstract: A system includes a sensor configured to monitor rotating machinery and generate a signal based on a physical characteristic of the rotating machinery. The system also includes a monitoring system with a processor. The processor of the monitoring system is configured to receive the signal from the sensor. The processor determines an occurrence of reverse rotation of the rotating machinery by comparing the signal to a normal operating pattern to generate an initial value. The processor generates a notification signal indicating the occurrence of a reverse rotation.Type: ApplicationFiled: October 24, 2019Publication date: February 20, 2020Applicant: General Electric CompanyInventors: Mel Gabriel Maalouf, Munir Ahmed Qureshi
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Publication number: 20200056503Abstract: A gas turbine part with a cooling hole, is fabricated by first forming a model of a wall of a gas turbine part. The wall is defined by first and second surfaces, the first surface having an aperture indentation possessing a complex geometry and extending into but not all the way through the wall of the gas turbine part. A mold of the wall of the gas turbine part is formed using the model and is used to cast the wall of the gas turbine part by lost-material casting. A passage is drilled through the resulting casting. This passage extends from the aperture indentation in the first surface through to the second surface.Type: ApplicationFiled: August 17, 2018Publication date: February 20, 2020Inventor: Scott H. Lamson
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Publication number: 20200056504Abstract: A bearing section for an exhaust turbocharger comprises a receiving opening for receiving a shaft of a rotor assembly of the exhaust turbocharger. The bearing section is designed for positioning bearing elements for supporting the shaft. A lubricant circuit is designed for supplying lubricant to the bearing elements. Lubricant channels are formed in the bearing section. In order to reduce a component temperature of the bearing section, a cooling jacket is provided, through which coolant can flow. The cooling jacket comprises a coolant channel, an inlet channel and an outlet channel. The inlet channel issues at a first opening point into the coolant channel and the outlet channel is connected at a second opening point to the coolant channel in such a way that a flow can pass therethrough. A rib is provided in the coolant channel.Type: ApplicationFiled: March 29, 2018Publication date: February 20, 2020Applicant: IHI Charging Systems International GmbHInventor: Gerhard Jungmann
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Publication number: 20200056505Abstract: A turbocharger includes a shaft, a bearing housing, a turbine housing, and a uniting member. The bearing housing includes a first connection section protruded in a radial direction of the shaft, the first connection section having a first face extended in the radial direction, the turbine housing includes a second connection section protruded in the radial direction of the shaft, the second connection section having a second face extended in the radial direction and being faced to the first face, the uniting member interposes the first connection section and the second connection section by being fitted to the first connection section and the second connection section from the outside, and the first face and/or the second face include a ring-shaped concave portion on an inner side in the radial direction of the shaft with a sealing member arranged at the ring-shaped concave portion.Type: ApplicationFiled: October 30, 2017Publication date: February 20, 2020Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Keigo SAKAMOTO, Nariaki SEIKE, Sosuke IRIE
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Publication number: 20200056506Abstract: A rotor assembly for a gas turbine engine according to an example of the present disclosure includes, among other things, a rotor that has a hub carrying one or more rotatable blades. The rotor is mechanically attached to a shaft, and an annular seal is carried by the shaft. The annular seal includes a substrate and a first layer disposed on the substrate. The first layer includes copper, and a second layer is disposed on the first layer and arranged to establish a sealing relationship with the rotor. The second layer includes a solid lubricant. A method of sealing is also disclosed.Type: ApplicationFiled: August 17, 2018Publication date: February 20, 2020Inventors: Pantcho P. Stoyanov, Mark B. Gossner
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Publication number: 20200056507Abstract: The embodiments relate to devices for coupling, in particular the recoupling an output shaft with an epicyclic gearbox in a gas turbine engine, wherein an axial coupling action between the output shaft and the epicyclic gearbox is generatable through an oil pump and transmitted through an oil transfer coupling. Embodiments also relate to a method for coupling and a gas turbine engine.Type: ApplicationFiled: August 13, 2019Publication date: February 20, 2020Inventor: Philip Brian WALKER
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Publication number: 20200056508Abstract: The present invention includes a flow guide (17) that is disposed in a space (15A) formed in a casing, on an outlet side of a diffuser (14), the flow guide including: a first guide surface (17a) that is disposed on a rotor side provided to a compressor and a gas turbine, and that delays turning of a flow direction of a compressed gas which has passed through the diffuser (14); and a second guide surface (17b) that is disposed outside the first guide surface (17a) and that turns the flow direction of the compressed gas which has passed through the diffuser (14).Type: ApplicationFiled: March 30, 2018Publication date: February 20, 2020Inventors: Ryosuke MITO, Hidetaka OKUI, Shinya HASHIMOTO
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Publication number: 20200056509Abstract: Power recovery turbines can be used debottlenecking of an existing plant, as well as recover electric power when revamping a plant. A process for recovering energy in a petroleum, petrochemical, or chemical plant is described. A fluid stream having a first control valve thereon is identified. A first power-recovery turbine is installed at the location of the first control valve, and at least a portion of the first fluid stream is directed through the first power-recovery turbine to generate electric power as direct current therefrom. The electric power is then recovered.Type: ApplicationFiled: October 28, 2019Publication date: February 20, 2020Inventors: Stanley J. Frey, Thomas Ebner
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Publication number: 20200056510Abstract: A system for aggregating a working fluid includes a fluid delivery line defining a fluid connection to at least one downstream process component; a plurality of collection lines each fluidically connected to a plurality of header lines by a respective set of header links; and a connecting junction fluidically connecting each of the plurality of collection lines to the fluid delivery line, the connecting junction including: at least one tee member oriented substantially perpendicularly with respect to the fluid delivery line, the at least one tee member connected to the fluid delivery line, and a plurality of branch fluid lines each fluidically coupling a respective one of the plurality of collection lines to the at least one tee member.Type: ApplicationFiled: October 24, 2019Publication date: February 20, 2020Inventors: Jeffrey Frederick Magee, Van Dang, Denis Robert Bruno
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Publication number: 20200056511Abstract: In a cryogenic combined cycle power plant electric power drives a cryogenic refrigerator to store energy by cooling air to a liquid state for storage within tanks, followed by subsequent release of the stored energy by first pressurizing the liquid air, then regasifying the liquid air and raising the temperature of the regasified air at least in part with heat exhausted from a combustion turbine, and then expanding the heated regasified air through a hot gas expander to generate power. The expanded regasified air exhausted from the expander may be used to cool and make denser the inlet air to the combustion turbine. The combustion turbine exhaust gases may be used to drive an organic Rankine bottoming cycle. An alternative source of heat such as thermal storage, for example, may be used in place of or in addition to the combustion turbine.Type: ApplicationFiled: July 1, 2019Publication date: February 20, 2020Inventor: William M. CONLON
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Publication number: 20200056512Abstract: A rocker arm, comprises a first outer arm and a second outer. A pivot body is joined between the first end of the first outer arm and the third end of the second outer arm. An actuatable latch mechanism is within the pivot body. An inner arm assembly comprises a latch arm pivotable adjacent the pivot body. An axle joins the inner arm assembly to pivot between the first outer arm and the second outer arm. An outer arm connector spans between the second end of the first outer arm and the fourth end of the second outer arm. A valve seat insert is constrained within the inner arm assembly between the outer arm connector and the axle. Alternatively, a valve seat insert hangs from the axle and is constrained within the inner arm assembly, the valve seat insert comprising a front and a rear cusp.Type: ApplicationFiled: October 9, 2017Publication date: February 20, 2020Applicant: EATON INTELLIGENT POWER LIMITEDInventor: Matthew A. Vance
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Publication number: 20200056513Abstract: A switching roller finger follower, including: first and second body portions; a resilient element connected to the body portions; and a locking assembly. The first body portion includes: a first bore; a second bore including a first orifice arranged to receive a pressurized fluid; and a second orifice arranged to expel the fluid. The locking assembly includes: a locking pin disposed in the first bore; and a shuttle pin engaged with the locking pin. The shuttle pin is displaceable transverse to the locking pin to: displace the locking pin in a first axial direction to contact the second body portion with the locking pin; and displace the locking pin in a second axial direction to disengage the locking pin from the second body portion. The second bore includes the second orifice; or the second bore does not include the second orifice and is in fluid communication with the second orifice.Type: ApplicationFiled: August 14, 2018Publication date: February 20, 2020Applicant: Schaeffler Technologies AG & Co. KGInventors: Sumukha Nagaraj, David Chandler
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Publication number: 20200056514Abstract: For a given cylinder in the engine having two intake valves and two exhaust valves, one of the intake valves is driven by a bucket tappet, while the other intake valve is actuated via a roller finger follower. Similarly, one of the exhaust valves is driven by a bucket tappet, while the other exhaust valve is actuated via a roller finger follower. The intake valves read inputs form an intake camshaft, and the exhaust valves read inputs from an exhaust camshaft.Type: ApplicationFiled: October 23, 2019Publication date: February 20, 2020Inventors: Darren Yaoshun Ting, David M. Barnes
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Publication number: 20200056515Abstract: This disclosure relates to a trigger wheel for a camshaft adjuster, having a side wall extending along a central longitudinal axis, wherein a formed feature made to project in a radial direction of the longitudinal axis is formed in a circumferential region of the side wall. The formed feature is provided at least in part with a wave profile. Moreover, the disclosure relates to a camshaft adjuster having this trigger wheel.Type: ApplicationFiled: August 2, 2019Publication date: February 20, 2020Applicant: Schaeffler Technologies AG & Co. KGInventors: Alexandre Camilo, Renato de Oliveira Ghiraldi
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Publication number: 20200056516Abstract: A poppet valve (2) with a valve body (4) has a cavity (6), a coolant inlet port (8). A coolant outlet port (10). The coolant inlet port (8) and the coolant outlet port (10) are arranged on a valve stem (12) of the poppet valve (2). The cavity (6) extends into the valve stem (12) of the poppet valve (2) and into a valve head (14) of the poppet valve (2), wherein there is provided a coolant conducting element (16) within the cavity (6) and extending into the cavity (6) from the valve head (14) to the valve stem (12), where the coolant conducting element (16) in each case has a cross-section. The coolant conducting element (16) includes a pipe section (18) and a funnel section (20), and the coolant conducting element (16) extends concentrically to the poppet valve (2) in the cavity (6) of the poppet valve (2).Type: ApplicationFiled: February 21, 2017Publication date: February 20, 2020Inventors: ANDRE MAREAU, STEFAN KELLERMANN, ANTONIUS WOLKING, OLIVER SCHULZE, ANDREAS HEINEK, GUIDO BAYARD, DANIEL EISENRING
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Publication number: 20200056517Abstract: A housing of an exhaust valve is provided for an exhaust port communicating with a combustion chamber. The housing has a plate-shaped portion formed with a plurality of fixed slits radially extending from the central axis of the port. A valve element is provided adjacent to the plate-shaped section, is rotatable around a central axis, and has formed with a plurality of movable slits radially extending from the central axis. Due to the action of electromagnets and a permanent magnet attached to an annular member, the valve body is rotationally displaced around the central axis of the port, and the relative positional relationship between the fixed slits and the movable slits is changed to open and close the exhaust valve. The same is also true for an intake valve.Type: ApplicationFiled: September 21, 2016Publication date: February 20, 2020Applicant: OZMA ELECTRONIC CONTROL CO., LTD.Inventor: Kazuto MURAKAMI
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Publication number: 20200056518Abstract: A case for rotating integrally with a crankshaft of an engine; a rotor housed in the case, to be rotated integrally with a camshaft of the engine by fastening the rotor coaxially to the camshaft with a center bolt; and a groove provided around an axis of the rotor on an opposite side of the rotor to the camshaft, and having an inner wall intersecting a rotation direction of the rotor are provided.Type: ApplicationFiled: January 5, 2017Publication date: February 20, 2020Applicant: Mitsubishi Electric CorporationInventors: Takuhiro MATSUMOTO, Hirofumi HASE
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Publication number: 20200056519Abstract: A muffler (4) for motor vehicles comprising an intake pipe (8) of the exhaust gases that separates, at a fork (10), into a main pipe (12) and a secondary pipe (16), a muffler body (24) which delimits an expansion volume (28) and houses at least partly the main pipe (12) and the secondary pipe (16), wherein the intake pipe (8) of the exhaust gas is in fluid continuous connection with the main pipe (12) through the secondary pipe (16), and wherein the main pipe (12) comprises, downstream of the fork (10), a throttle valve (32) which allows or prevents a further fluidic connection of the intake pipe (8) of exhaust gas with the main pipe (12), and an output of the exhaust gases (40), for the expulsion of the gases from the muffler pipe (4).Type: ApplicationFiled: November 3, 2017Publication date: February 20, 2020Inventors: Piero SOATTI, Francesco BELLATO
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Publication number: 20200056520Abstract: A working machine includes a manual switch, a filter to catch particulate matters included in exhaust gas that is exhausted from a prime mover, a first cleaning controller to perform automatic cleaning that automatically combusts the particulate matters when a deposits amount of the particulate matters caught by the filter is a first deposits amount threshold or more, a second cleaning controller to perform manual cleaning that combusts the particulate matters based on a command of the manual switch when the deposits amount is equal to or more than a second deposits amount threshold that is larger than the first deposits amount threshold, and a third cleaning controller to perform assist cleaning that combusts the particulate matters based on the command of the manual switch when the deposits amount is equal to or more than the first deposits amount threshold and smaller than the second deposits amount threshold.Type: ApplicationFiled: October 23, 2019Publication date: February 20, 2020Applicant: KUBOTA CORPORATIONInventors: Ryuki NISHIMOTO, Keisuke MIURA, Ryosuke KINUGAWA
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Publication number: 20200056521Abstract: An NH3 supply amount controller reduces and adjusts a supply amount of NH3 to an SCR catalyst by an NH3 supplier, when an exhaust gas flowing into an NOx catalyst has a rich air-fuel ratio and NOx occluded by the NOx catalyst is reduced to N2. A reduction amount of the supply amount of the NH3 controlled by the NH3 supply amount controller is set larger when s flow amount of the exhaust gas detected or estimated by an exhaust-gas flow amount detector is larger.Type: ApplicationFiled: October 13, 2017Publication date: February 20, 2020Applicant: MAZDA MOTOR CORPORATIONInventors: Goro TSUBOI, Takayuki YAMAGUCHI, Daishi IKEDA, Yoshiaki TOMITA, Chikara ISHIHARA
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Publication number: 20200056522Abstract: A composition having an extract of seed of Emblica officinalis. Methods of preparing extract of seed of Emblica officinalis. An amla seed blend composition having various ratios of extracts of seeds of Emblica officinalis. Nutraceutical or pharmaceutical methods for decreasing the total cholesterol, decreasing triglyceride, decreasing blood glucose level, enhancing HDL-C levels, increasing the HDL-C level to total cholesterol ratio, lowering LDL-C levels, decreasing the CRP level, decreasing the intima media thickening, reducing hair fall in mammals especially human beings. The extract of seed of Emblica officinalis, or the amla seed blend composition is more effective compared to extracts prepared from fruits of Emblica officinalis.Type: ApplicationFiled: October 23, 2019Publication date: February 20, 2020Inventor: Benny Antony
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Publication number: 20200056523Abstract: An exhaust gas-purifying catalyst of the present invention comprising a substrate, a first catalyst layer comprising a first supported catalyst, a second supported catalyst, palladium, and a first nitrogen oxide storage material, and a second catalyst layer comprising a third supported catalyst having an alloying rate of platinum and palladium of 40% or more and a second nitrogen oxide storage material, wherein a mass of the second supported catalyst is greater than a mass of the first supported catalyst and greater than a mass of the third supported catalyst.Type: ApplicationFiled: October 24, 2019Publication date: February 20, 2020Applicant: CATALER CORPORATIONInventors: Yoshinori Yamashita, Shohei Tomita, Daisuke Ochiai, Masatoshi Ikebe
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Publication number: 20200056524Abstract: An exhaust gas-purifying catalyst of the present invention comprising a substrate, a first catalyst layer comprising a first supported catalyst, a second supported catalyst, palladium, and a first nitrogen oxide storage material, and a second catalyst layer comprising a third supported catalyst having an alloying rate of platinum and palladium of 40% or more and a second nitrogen oxide storage material, wherein a mass of the second supported catalyst is greater than a mass of the first supported catalyst and greater than a mass of the third supported catalyst.Type: ApplicationFiled: October 24, 2019Publication date: February 20, 2020Applicant: CATALER CORPORATIONInventors: Daisuke Ochiai, Yoshinori Yamashita, Masatoshi Ikebe
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Publication number: 20200056525Abstract: A reductant dosing system includes: a doser; a fixed displacement pump in fluid communication with the doser; a reductant source in fluid communication with the fixed displacement pump; and a controller communicatively coupled to the fixed displacement pump to control operation of the fixed displacement pump, wherein the controller is programmed to operate the fixed displacement pump using a pressure control system responsive to data indicative of the doser not dosing reductant and the controller is programmed to operate the fixed displacement pump using a flow control system responsive to data indicative of the doser dosing reductant.Type: ApplicationFiled: April 5, 2018Publication date: February 20, 2020Applicant: CUMMINS EMISSION SOLUTIONS INC.Inventors: Nassim Khaled, Masoud Ziabakhsh Deilami
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Publication number: 20200056526Abstract: An NH3 supply amount controller reduces and adjusts a supply amount of NH3 to an SCR catalyst by an NH3 supplier, when an exhaust gas flowing into an NOX catalyst has a rich air-fuel ratio and NOX occluded by the NOX catalyst is reduced to N2. A reduction amount of the supply amount of the NH3 controlled by the NH3 supply amount controller is set smaller when a temperature of the NOX catalyst detected or estimated by an NOX catalyst temperature detector is higher.Type: ApplicationFiled: October 13, 2017Publication date: February 20, 2020Applicant: MAZDA MOTOR CORPORATIONInventors: Goro TSUBOI, Takayuki YAMAGUCHI, Daishi IKEDA, Yoshiaki TOMITA, Chikara ISHIHARA
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Publication number: 20200056527Abstract: An NH3 supply amount controller reduces and adjusts a supply amount of NH3 to an SCR catalyst by an NH3 supplier, when an exhaust gas flowing into an NOx catalyst has a rich air-fuel ratio and NOx occluded by the NOx catalyst is reduced to N2. A reduction amount of the supply amount of the NH3 controlled by the NH3 supply amount controller is set larger when an amount of reducing agent detected or estimated by a reducing agent amount detector is larger.Type: ApplicationFiled: October 13, 2017Publication date: February 20, 2020Applicant: MAZDA MOTOR CORPORATIONInventors: Goro TSUBOI, Takayuki YAMAGUCHI, Daishi IKEDA, Yoshiaki TOMITA, Chikara ISHIHARA
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Publication number: 20200056528Abstract: The disclosure relates to a line assembly for a liquid or gaseous medium, including at least one first line, which is designed as a UREA line, and including a second line for a liquid or gaseous medium. The first line and the second line are thermally coupled to each other. According to examples, the first line is wrapped around the second line or the second line is wrapped around the first line.Type: ApplicationFiled: March 22, 2018Publication date: February 20, 2020Inventor: Janusz Szwajkosz
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Publication number: 20200056529Abstract: An exhaust gas-purifying system includes an exhaust gas-purifying unit that includes one or more exhaust gas-purifying catalysts, is supplied with the exhaust gas from a combustion engine, and purifies the exhaust gas so that the exhaust gas can be released to the atmosphere, a sensor that detects a concentration of nitrogen oxides contained in the purified exhaust gas, and a processing section that makes a judgment with respect to at least one of the exhaust gas-purifying catalysts, as to whether or not a performance is maintained at a sufficient level, based on the concentration detected by the sensor.Type: ApplicationFiled: October 24, 2019Publication date: February 20, 2020Applicant: CATALER CORPORATIONInventors: Makoto Tsuji, Hiroto Imai, Kou Sugawara, Shintaro Kobayashi
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Publication number: 20200056530Abstract: An exhaust enclosure system may include an inner insulation assembly circumferentially surrounding an outlet pipe of an engine exhaust manifold. The inner insulation assembly may be in direct contact with the exhaust manifold. The exhaust enclosure system may include a cover enclosing the inner insulation assembly. The cover may be physically separated from the inner insulation assembly by a circumferential air gap disposed between the inner insulation assembly and the cover.Type: ApplicationFiled: August 14, 2018Publication date: February 20, 2020Applicant: Caterpillar Inc.Inventor: Keith W. Mellencamp
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Publication number: 20200056531Abstract: An isolator mount for supporting an exhaust component on a vehicle body via a hanger. The isolator mount includes an isolator element, isolator bracket, and clevis bracket. The isolator element has an aperture for receiving a portion of the hanger and dampens vibrations. The isolator bracket extends at least partially about and supports the isolator element and further includes a neck portion. The clevis bracket has a first half and a second half that are secured to the neck portion of the isolator bracket with a fastener that extends along a longitudinal axis. The first half of the clevis bracket and the neck portion of the isolator bracket include an anti-rotation feature in the form of a key-way slot and a key that is received in the key-way slot to prevent rotation of the isolator bracket relative to the clevis bracket about the longitudinal axis of the fastener.Type: ApplicationFiled: August 14, 2018Publication date: February 20, 2020Inventor: Troy P. RODECKER
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Publication number: 20200056532Abstract: Systems, devices, and method are disclosed for differentially cooling an internal combustion engine. A cooling system includes a first cooling circuit configured to lower a temperature of a cooling fluid to a first temperature where the first cooling circuit is configured to dispense a first portion of the cooling fluid to cylinder walls and non-cylinder or non-combustion surfaces of the engine. The cooling system also includes a second cooling circuit configured to lower the temperature of a remaining or second portion of the cooling fluid to a second temperature that is lower than the first temperature where the second cooling circuit is configured to dispense the remaining portion of the cooling fluid to cylinder or combustion surfaces within one or more cylinders of the internal combustion engine.Type: ApplicationFiled: October 28, 2019Publication date: February 20, 2020Inventors: Anthony Kyle Perfetto, Samuel C. Geckler
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Publication number: 20200056533Abstract: Pump for recirculating a cooling fluid for a vehicle with combustion engine, comprising: a pump body (11) designed to be fixed to a base (11a) of the vehicle engine; an impeller (1) inserted inside a chamber containing the cooling fluid and mounted on a driven shaft (2), at least one first electric motor (50) for driving the shaft (2) of the impeller (1), wherein—said electric motor (50) comprises a fixed stator (51) mounted on the body (11) of the pump on the outside thereof and a rotor (52) radially outer lying with respect to the stator and connected to the shaft (2) of the impeller (1) of the pump on the outside of the cooling fluid chamber and via transmission means (54, 54a; 354, 354a; 54a, 66), and wherein the electric motor is designed to operate the impeller independently of the combustion engine.Type: ApplicationFiled: February 19, 2018Publication date: February 20, 2020Inventor: Piercarlo BOFFELLI
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Publication number: 20200056534Abstract: A vehicle has an internal combustion engine, a motor configured to propel the vehicle, and a supercharger. A mechanical connection is configured to transfer torque from at least one of the engine and machine to the supercharger. The supercharger is a single torque load on the mechanical connection. The vehicle further has a first clutch between the motor and engine and a second clutch between the motor and supercharger.Type: ApplicationFiled: August 14, 2018Publication date: February 20, 2020Inventors: Courtney L'Arrivée, Stephen Powell, Anthony Boyko
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Publication number: 20200056535Abstract: A sparked reciprocating internal combustion two-stroke steam engine including an engine casing, a crankshaft rotatable about a crankshaft axis, a cylinder arranged inside the engine casing, a piston 1 arranged inside the cylinder to movably reciprocate along a reciprocating axis between a top dead center position distal from the crankshaft and a bottom dead center position proximal to the crankshaft and operatively connected to the crankshaft such that the reciprocating piston imparts a rotational movement to the crankshaft, a combustion chamber defined within the cylinder between the engine casing and a head of the piston opposite the crankshaft, an intake valve, an exhaust valve, a fuel injector to directly inject fuel into the combustion chamber, a water injector to directly inject water into the combustion chamber at a location below the top dead center position of the piston, and a spark plug, where the intake valve is in fluid connection with a compressed gaseous oxidizer supply configured to feed comprType: ApplicationFiled: October 6, 2017Publication date: February 20, 2020Applicant: DMA Tech S.à r.l.Inventor: Jacques BOUVY
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Publication number: 20200056536Abstract: The disclosure relates to a method for detecting belt slip of a belt drive driving a generator of an internal combustion engine, said belt drive having a belt tensioner that can be adjusted in operation and adjusts the pre-tensioning force of the belt according to the detected belt slip. According to said method, the rotational speed profile of the crankshaft is recorded during an angular window of the crankshaft of m·360 degrees and an average value of the crankshaft rotational speed is formed from said rotational speed profile; temporally independently from the recording of the rotational speed profile of the crankshaft, the rotational speed course of the generator shaft is recorded during an angular window of the generator shaft of n·u?1·360 degrees and an average value of the generator shaft rotational speed is formed from said rotational speed profile.Type: ApplicationFiled: April 10, 2018Publication date: February 20, 2020Applicant: Schaeffler Technologies AG & Co. KGInventors: Martin Heckel, Arno Bächstädt, Christian Hoffmann, Massimo Abrate, Vladimir Baranov
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Publication number: 20200056537Abstract: A control method and a control device are provided for an internal combustion engine structured to vary a mechanical compression ratio by varying a range of slide of a piston with respect to a cylinder bore. A control process includes: acquiring a temperature correlating with a cylinder bore wall temperature; fixing the mechanical compression ratio to a preset compression ratio point, in response to a condition that the acquired temperature is lower than a preset temperature point; and setting the preset temperature point higher than a point corresponding to a point of the cylinder bore wall temperature at which condensed water occurs in the cylinder bore.Type: ApplicationFiled: May 1, 2017Publication date: February 20, 2020Applicant: NISSAN MOTOR CO., LTD.Inventors: Hiroaki HOSHIKAWA, Kakuzou KANEKO, Yukinaga MORIGUCHI, Kazuo MURAKI
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Publication number: 20200056538Abstract: The invention relates to a method for operating a reciprocating piston machine, particularly an internal combustion engine, having at least one piston rod that is hydraulically adjustable in length for setting a compression ratio, wherein the piston rod comprises a piston and a hydraulic cylinder for adjusting its length, wherein the piston with the hydraulic cylinder delimits at least one working chamber, through the fill level of which at least two switching positions of the piston rod are possible, wherein independently from the setting of the compression ratio the working chamber is at least partially filled and emptied as a function of at least one first predetermined requirement to effect an at least partial exchange of a hydraulic medium in the at least one working chamber.Type: ApplicationFiled: February 23, 2018Publication date: February 20, 2020Inventors: Siegfried LÖSCH, Alois FÜRHAPTER, Gerhard HEIMEL, Bernhard KOMETTER, Uwe Dieter GREBE
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Publication number: 20200056539Abstract: The invention relates to an acoustic sheild having a thermo-compressed shell based on fibres bound together by a thermoplastic binder to form a porous shell that has noise absorption properties. The shell has an internal face and an external face, and a sheet of metal for thermal protection against the engine. The sheet covers all or part of the internal face, the sheet is attached in a substantially fluidtight manner, essentially via its periphery to the shell. This creates a peripheral seal and maintains, except at the periphery, an air gap between the sheet and the shell, to protect the shell from the heat accumulated by the sheet.Type: ApplicationFiled: February 20, 2018Publication date: February 20, 2020Inventors: Laurent WAXIN, Christophe CAPRON, François CHOQUART