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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 2921. Отображено 100.
20-09-2014 дата публикации

Клапанная крышка (варианты) и система для двигателя

Номер: RU0000145313U1
Автор: Пол Томас РАЙНХАРТ, Фрэнк Асьерно ВАЛЕНСИЯ
Принадлежит: ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи

1. Клапанная крышка для двигателя, содержащая:корпус крышки; итрубку для свечи зажигания, выполненную за одно целое с корпусом крышки.2. Клапанная крышка по п.1, в которой трубка для свечи зажигания отлита за одно целое с корпусом крышки.3. Клапанная крышка по п.2, в которой корпус крышки содержит первый материал, а трубка для свечи зажигания содержит второй материал, при этом первый материал отличен от второго материала.4. Клапанная крышка по п.1, в которой трубка для свечи зажигания включает в себя уплотнительное средство на или смежно ее наружному концу для уплотнения с головкой блока цилиндров.5. Клапанная крышка по п.4, в которой уплотнительное средство включает в себя выточку под уплотнительное кольцо и уплотнительное кольцо, выполненные с возможностью уплотняющего взаимодействия с кольцевой поверхностью отверстия для свечи зажигания в головке блока цилиндров.6. Клапанная крышка по п.4, в которой уплотнительное средство включает в себя торцевое уплотнение, расположенное на краю трубки для свечи зажигания и выполненное с возможностью уплотняющего взаимодействия с основанием отверстия для свечи зажигания.7. Клапанная крышка по п.1, в которой корпус крышки включает в себя по существу плоский соединительный край для соединения с головкой блока цилиндров, при этом трубка для свечи зажигания продолжается за соединительный край.8. Клапанная крышка, содержащая:корпус крышки, содержащий соединительный край, выполненный с возможностью соединения с головкой блока цилиндров двигателя; изакрытый канал, имеющий второй конец, жестко соединенный с корпусом крышки, и первый конец для уплотняющего взаимодействия с отверстие РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 145 313 U1 (51) МПК F02F 1/00 (2006.01) F02F 11/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2013153928/06, 04.12.2013 (24) Дата начала отсчета срока действия патента: 04.12.2013 (72) Автор(ы): ВАЛЕНСИЯ Фрэнк Асьерно (US), ...

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Номер записи: 1
31-05-2012 дата публикации

Valve spring retainer for an internal combustion engine and a method of manufacturing the same

Номер: US20120132841A1
Автор: Takayuki Aoki, Takeshi Sassa
Принадлежит: Fuji Oozx Inc

Oxide film formed on a spring-retaining flange by heat treatment gets unlikely to peel off, thereby improving wear resistance of a contact surface of the spring-retaining flange with a valve spring. The oxide film 15 of the part of the spring-retaining flange 3 with the valve spring 7 is at least partially removed to make thickness of the oxide film to 0.00 to 0.02 μm.

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Номер записи: 2
21-06-2012 дата публикации

Control valve

Номер: US20120152189A1
Автор: Ali Bayrakdar
Принадлежит: Schaeffler Technologies AG and Co KG

A control valve for a device for the variable adjustment of the valve timing of gas exchange valves of an internal combustion engine. The control valve has a substantially hollow-cylindrical valve box, a control piston and a securing ring. The valve box is arranged in a receptacle inside the device, the securing ring projects over the valve box in the radial direction and the control piston is arranged so as to be axially displaceable inside the valve box.

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Номер записи: 3
13-12-2012 дата публикации

Gasket and Seal Structure

Номер: US20120313331A1
Автор: Keita Yamamoto
Принадлежит: Uchiyama Manufacturing Corp

A gasket and a gasket seal structure in which the gasket is adapted to be inserted into a cutout recess part formed on a wall part of a box-shaped member with an opening part on at least one surface, the cutout recess part communicating with the opening part. The gasket and the structure thereof are characterized by the followings; the cutout recess part has a chamfered surface at the corner part on the opening part side; the gasket comprises an exterior rubber part having a seal surface part elastically contacting the cutout recess part and a core body having higher rigidity than that of the exterior rubber part and covered with the exterior rubber part; and the seal surface part has at a region corresponding to the corner part on the opening part side of the cutout recess part a projecting part formed along the corner part on the opening part side and projecting toward the corner part on the opening part side of the cutout recess part.

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Номер записи: 4
18-04-2013 дата публикации

Control Valve Comprising an Integrated Filter and Cam Shaft Phase Setter Comprising Said Control Valve

Номер: US20130092113A1
Автор: Bohner Jürgen, KRÜGER Jens, Meinig Uwe
Принадлежит: Schwabische Huttenwerke Automotive GmbH

A control valve for controlling a pressure fluid, said control valve comprising: a valve housing () comprising a valve inlet (P) for the pressure fluid, a control port (A, B) for connecting to an assembly which is to be operated using the pressure fluid, and a valve outlet (TA, TB); a valve piston () which can be moved in the valve housing () along an axis (R) and which comprises a hollow space () through which the pressure fluid can flow from the valve inlet (P) to the control port (A, B); and a filter device () which is arranged in the control valve and comprises a filter cross-section () which filters the pressure fluid as it passes through it, wherein at least a part of the filter cross-section () of the filter device () is situated in the hollow space () of the valve piston (). 1. A control valve for controlling a pressure fluid , said control valve comprising:a valve housing comprising a valve inlet for the pressure fluid, a control port for connecting to an assembly which is to be operated using the pressure fluid, and a valve outlet;a valve piston which can be moved in the valve housing along an axis and which comprises a hollow space through which the pressure fluid can flow from the valve inlet to the control port; anda filter device which is arranged in the control valve and comprises a filter cross-section which filters the pressure fluid as it passes through it,wherein at least a part of the filter cross-section of the filter device is situated in the hollow space of the valve piston.2. The control valve according to claim 1 , wherein the filter device comprises a filter enclosing structure which extends in the hollow space of the valve piston and surrounds an internal space of the filter device claim 1 , and a filter inlet into the internal space of the filter device claim 1 , and wherein the filter cross-section forms at least a part of the enclosing area of the filter enclosing structure which surrounds the internal space of the filter device claim 1 ...

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Номер записи: 5
25-04-2013 дата публикации

Apparatus and Method for Replacing an Oil Pressure Regulating Assembly and a High Pressure Relief Valve Assembly

Номер: US20130097832A1
Автор: Adam William Ostein, Christopher Lee Bach, Curtis John Graham, Patrick W. Savage, Jr.
Принадлежит: Caterpillar Inc

A method of increasing oil pressure in a heavy duty truck engine lubricating system is provided. The lubricating system comprises an oil pressure regulating assembly mounted in an oil filter base and having a main spring to regulate oil pressure, and a high pressure relief valve assembly mounted in the oil filter base and having a peak clipping spring to relieve oil pressure when the pressure exceeds a specified limit. The method includes the steps of replacing the main spring with a replacement main spring having a higher spring constant and replacing the peak clipping spring with a replacement peak clipping spring having a higher spring constant. A replacement kit for increasing oil pressure is also provided.

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Номер записи: 6
30-05-2013 дата публикации

Auxiliary device mounting structure for an internal combustion engine

Номер: US20130133598A1
Автор: Kaduto Yamane, Masayuki Takahashi, Yuya Kasajima
Принадлежит: Honda Motor Co Ltd

In an auxiliary device mounting structure for mounting an auxiliary device ( 4 ) on a cylinder head ( 2 ), the auxiliary device such as a fuel injection pump is provided with a lower housing ( 42 ) attached to the cylinder head, and the upper housing ( 43 ) supporting the auxiliary device and attached to the lower housing so as to jointly form a housing chamber ( 48 ). An extension ( 51 ) of a camshaft ( 37 ) extends into the housing chamber, and is fitted with a cam ( 61 ) for actuating a plunger ( 86 ) of the auxiliary device. A radial bearing ( 53, 56 ) for the camshaft extension is integrally formed on the first housing at a position located more inward than the axial end of the cylinder head so that the cylinder head is not required to be formed with an axial extension, and is enabled to support the auxiliary device and a bearing for the camshaft extension in a highly stable manner.

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Номер записи: 7
13-06-2013 дата публикации

BISTABLE ELECTROMAGNETIC ACTUATING DEVICE AND CAMSHAFT ACTUATING DEVICE

Номер: US20130147583A1
Автор: Buerssner Joerg, Schiepp Thomas
Принадлежит: ETO MAGNETIC GMBH

A bistable electromagnetic actuating device and a camshaft actuating device for displacing a camshaft in a motor vehicle having an electromagnetic actuating device. 1. A bistable electromagnetic actuating device , in particular for displacement of a camshaft in a motor vehicle , comprising an actuating element which forms an engagement region and can be moved between a first and a second switch position , a coil device which is provided in a stationary manner relative to the actuating element and is formed to exert a force on the actuating element , wherein the actuating element is assigned a disc-shaped permanent magnet element , which is accommodated between magnetically conductive pole discs which are provided on both sides of the permanent magnet means and are fastened to the actuating element , wherein the permanent magnet element is formed to interact with a stationary core region , and the coil device is formed to produce a counter-force which counteracts a holding force of the permanent magnet element and loads the latter with a force together with the actuating element away from a first stop face formed by the core region towards a second stop face which defines the second switch position , damping means associated with the actuating element are provided for damping the impact when the first and/or second switch position is reached , the damping means are formed and arranged in such a manner that they have a damping effect only in an end section of the displacement movement of the actuating element from the first switch position to the second switch position and/or from the second switch position to the first switch position.2. The actuating device according to claim 1 , wherein the damping means are formed and arranged in such a manner that they can be elastically deformed only in the end section of the displacement movement.3. The actuating device according to claim 2 , wherein an axial extent of the end section of the displacement distance in which the ...

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Номер записи: 8
18-07-2013 дата публикации

CAMSHAFT ADJUSTER

Номер: US20130180482A1
Автор: Weber Jurgen
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A camshaft adjuster () is disclosed that has a spring () that is supported by spring supports (), and these spring supports () have lubricant reservoirs () for the lubrication of the contact area between the spring wire () and the spring support (). 1. A camshaft adjuster comprising a drive element , a driven element , and a spring , the drive element and the driven element are rotatable relative to each other , the spring is fixed by a spring support of the drive element and a spring support of the driven element , the spring supports a relative rotation between the drive element and the driven element , and a lubricant reservoir is provided between a spring wire of the spring and the spring supports , in order to lubricate a contact area between the spring wire and the spring support.2. The camshaft adjuster according to claim 1 , wherein the lubricant reservoir is defined as a region between a two-line contact of the spring wire with the associated spring support.3. The camshaft adjuster according to claim 1 , wherein the lubricant reservoir comprises a pocket.4. The camshaft adjuster according to claim 1 , wherein the lubricant reservoir comprises a groove.5. The camshaft adjuster according to claim 4 , wherein the lubricant reservoir groove is arranged transverse or inclined relative to the spring wire.6. The camshaft adjuster according to claim 4 , wherein the lubricant reservoir groove has a circular construction.7. The camshaft adjuster according to claim 1 , wherein the lubricant reservoir comprises a slot.8. The camshaft adjuster according to claim 1 , wherein the spring support comprises a peg.9. The camshaft adjuster according to claim 1 , wherein the lubricant reservoir is produced by shaping processes.10. The camshaft adjuster according to claim 1 , wherein the lubricant reservoir is constructed as a solid lubricant body. This application claims the benefit of German Patent Application No, 102011088295.2, filed Dec. 12, 2012, which is incorporated ...

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Номер записи: 9
25-07-2013 дата публикации

Constructed plastic rotor with integrated cartridge and spring suspension

Номер: US20130186356A1
Автор: Stefan Schelter
Принадлежит: Schaeffler Technologies AG and Co KG

A cover ( 4 ) for covering an axial side of a rotor core ( 6 ) that is arranged in a camshaft adjuster ( 50 ) and has a passage bore ( 28 ) for holding a locking pin ( 30 ) with which the rotor core ( 6 ) can be secured against rotation relative to a stator ( 54 ) of the camshaft adjuster ( 50 ). The specified cover includes a base body ( 8 ) for axially covering at least one area of the rotor core ( 6 ) with the passage bore ( 28 ) and a support element ( 38 ) that is arranged on the base body ( 8 ) for the axial counter support of the locking pin ( 30 ).

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Номер записи: 10
08-08-2013 дата публикации

Intake and exhaust apparatus of multi-cylinder engine

Номер: US20130199495A1
Автор: Yoshito Wakabayashi
Принадлежит: Mazda Motor Corp

An intake and exhaust apparatus of a multi-cylinder engine is provided. The engine is provided with a plurality of cylinders having intake and exhaust valves for opening and closing intake and exhaust ports, respectively. The apparatus includes an intake system including intake ports of respective cylinders, independent intake passages connected with the respective intake ports, a surge tank connected with upstream ends of the independent intake passages, and an air cleaner connected with the surge tank. The apparatus also includes an exhaust system including independent exhaust passages connected with an exhaust port of one cylinder or exhaust ports of the plurality of cylinders that are not continuous in exhausting order, and a collecting pipe connected with downstream ends of the independent exhaust passages in a bundled manner, and for collecting exhaust gas ejected from the downstream ends of the independent exhaust passages.

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Номер записи: 11
22-08-2013 дата публикации

CONTROL VALVE FOR CONTROLLING COMPRESSION RATIO AND COMBUSTION RATE

Номер: US20130213328A1
Автор: Zukouski Russell P.
Принадлежит: International Engine Intellectual Property Company LLC

A method of controlling the compression ratio in an engine () having at least one cylinder () with a piston () includes providing an air control valve () in fluid communication with the cylinder, where the air control valve is in fluid communication with a reservoir (). The method also includes opening the air control valve () in a compression stroke before the piston () reaches top dead center, and closing the air control valve () when the piston reaches top dead center. 1) A method of controlling compression ratio in an engine having at least one cylinder with a piston; the method comprising:providing an air control valve in fluid communication with the at least one cylinder, wherein the air control valve is in fluid communication with a reservoir;opening the air control valve in a compression stroke before the piston reaches top dead center; andclosing the air control valve when the piston reaches top dead center.2) The method of further comprising the step of opening the air control valve during the combustion stroke after combustion is initiated.3) The method of further comprising the step of biasing the air control valve to a closed position.4) The method of further comprising the step of storing air in the reservoir after the air control valve is opened.5) The method of further comprising the step of communicating the air from the reservoir to the at least one cylinder after the air control valve is opened during the combustion stroke.6) The method of further comprising the step of closing the air control valve before the exhaust stroke.7) The method of further comprising the step of injecting fuel into the at least one cylinder in a compression stroke after the piston reaches top dead center.8) A method of controlling compression ratio in an engine having at least one cylinder with a piston; the method comprising:providing an air control valve in fluid communication with the at least one cylinder, wherein the air control valve is in fluid communication with ...

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Номер записи: 12
12-09-2013 дата публикации

ROTARY CAM RADIAL STEAM ENGINE

Номер: US20130233259A1
Автор: Courson Michael W.
Принадлежит:

A rotary cam radial engine formed of two primary components engaged at a mid section to allow for an easy repair to the vehicle. The device features a body having radially oriented apertures; and a plurality of pistons in a respective reciprocating engagement, within each respective said cylinder. The pistons are driven by low pressure fluids and/or a vacuum and the engine being formed of two main components can be taken apart without tools for maintenance and reconfiguration. 1. A rotary cam radial engine comprising:a body, said body have one or a plurality of apertures in a radial orientation therein, each said apertures having a first end of a respective cylinder positioned therein;a piston in a respective reciprocating engagement, within each respective said cylinder;each said piston having an endwall communicating across a first end of said cylinder and facing toward said first end of said cylinder, and having an attachment end opposite said first end and facing an open end of a said cylinder, said attachment end engaged with a first end of a rod;a retaining ring configured for a cooperative engagement with said body to an engaged position;said retaining ring having a plurality of radially extending depressions formed therein;each respective said depression sized on a first end for a cooperative engagement with an exterior of a respective said cylinder, said retaining ring in said cooperative engagement positioning a said depression in a removable engagement with each said cylinder, said removable engagement maintaining said cylinder, in a fixed position relative to said body;each respective said depression configured on a second end, for reciprocation of a respective rod therethrough;a cam ring in a circumferential positioning encircling said radially extending depressions;said cam ring having an interior circumference defining a race;each said rod at a second end, configured for a rolling engagement with said race;a respective intake port rotationally ...

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Номер записи: 13
24-10-2013 дата публикации

Air spring system for an internal combustion engine

Номер: US20130276729A1
Автор: Christian Berger, Gerhard WIESINGER, Johann Neuboeck, Michael Dopona, Roland Ennsmann, Roland Spatzenegger, Stefan Leiber, Werner Brandstaetter
Принадлежит: BRP Powertrain GmbH and Co KG

A method of supplying air to an air spring biasing one of an intake valve and an exhaust valve of an internal combustion engine to a closed position is disclosed. The method includes: driving an air compressor with a motor prior to starting of the internal combustion engine, the air compressor fluidly communicating with the air spring to supply air to the air spring; determining that a predetermined condition has been reached; starting the engine once the predetermined condition has been reached; and driving the air compressor with a rotating shaft of the engine once the engine has started.

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Номер записи: 14
28-11-2013 дата публикации

TWO-STROKE UNIFLOW TURBO-COMPOUND INTERNAL COMBUSTION ENGINE

Номер: US20130312704A1
Автор: TAYLOR Jack R.
Принадлежит:

A radial, two-stroke uniflow internal combustion (IC) cylinder and multiple cylinder engine, the cylinder having a cylinder wall and a cylinder head, the cylinder head having an exhaust port, a fuel injector, and a spark means disposed through the cylinder head, a piston reciprocally mounted in the cylinder for movement alternately through compression and power strokes, and an inlet swirl port disposed through the cylinder wall providing fluid communication into the cylinder chamber, and having an annular exhaust air manifold in exhaust gas communication with each exhaust ports, and an exhaust-driven radial in-flow turbine that drives the inlet air compression. 1. A radial two-stroke , uniflow , internal combustion (IC) engine including a plurality of banks of cylinders arranged along a common drive shaft , each bank of cylinders comprising a plurality of radially-arranged cylinders , each cylinder including: a cylinder wall and a cylinder head having an exhaust port , an exhaust valve disposed in the exhaust port , a fuel injector and a spark means disposed through the cylinder head , a piston mounted in the cylinder for reciprocal movement between a top dead center (TDC) position and a bottom dead center (BDC) position , and through a compression stroke and a power stroke , at least one swirl inlet port passing through the cylinder wall at the bottom of the cylinder , the inlet port oriented tangential to an axial centerline of the cylinder , wherein the at least one swirl port is covered and uncovered in response to the reciprocal movement of the piston; and further including a high pressure inlet air compressor that discharges to an inlet air manifold , an annular exhaust air manifold in exhaust gas communication with each exhaust port , and an exhaust-driven radial in-flow turbine that drives the air compressor.2. A reciprocating two-stroke uniflow multiple cylinder internal combustion (IC) engine including a cylinder having a cylinder wall and a cylinder head ...

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Номер записи: 15
09-01-2014 дата публикации

Shaft, particularly a partly tubular camshaft

Номер: US20140007736A1
Автор: Ulf Mueller
Принадлежит: Individual

The invention relates to a shaft, particularly a cam shaft ( 1 ), comprising a hollow shaft section ( 10 ) with at least one inlet opening ( 11 a , 11 b ) for evacuating a gas through said hollow shaft section ( 10 ), and comprising a splash-guard device ( 4 ) arranged in the region of the radial inlet opening ( 11 a , 11 b ) on the hollow shaft section ( 10 ). According to the invention, the splash-guard device ( 4 ) has a radially exposed cover with radial passage openings ( 8 ) and protrusions between said passage openings ( 8 ). The protrusions can, in particular, be in the form of ribs ( 9 ). To be published with FIG. 3 .

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Номер записи: 16
13-02-2014 дата публикации

SEAL FOR SWITCH VALVES

Номер: US20140041609A1
Автор: Itoafa Calin Petru
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A switch valve for a hydraulic unit, in particular a quick-acting valve for a hydraulic unit of a hydraulically variable valve gear of a reciprocating internal combustion engine, having a valve body, which is guided in an axially movable manner in a housing part and which is sealed with respect to the housing part by a seal, wherein the seal is designed as a flat seal element, which encloses the valve body in a sealing manner and which is operatively connected to an axial surface of the housing part in a sealing manner. 17-. (canceled)8. A switch valve for a hydraulic unit , the switch valve comprising:a housing part;a seal; anda valve body guided for axial displacement in the housing part and sealed from the housing part through the seal,the seal being configured as a flat sealing element enclosing the valve body in a sealing manner and operatively connected to an axial surface of the housing part in a sealing manner.9. The switch valve as recited in wherein the flat sealing element is arranged on a front end surface of the housing part.10. The switch valve as recited in wherein the flat sealing element is made out of an elastic material.11. The switch valve as recited in wherein the elastic material is an elastomeric material or a fluoroplastic.12. The switch valve as recited in wherein the flat sealing element includes a metallic claim 9 , disc-shaped base body including an at least partial cladding out of the elastic material.13. The switch valve as recited in wherein the cladding is applied to an inner region of the disc-shaped base body facing the valve body and at least partially to a side of the disc-shaped base body facing the axial surface.14. The switch valve as recited in further comprising a seating ring claim 8 , the valve body including a sealing surface arranged outside of the housing part and forming a valve seat together with a counter surface arranged on the seating ring.15. The switch valve as recited in further comprising a spring arranged ...

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Номер записи: 17
05-01-2017 дата публикации

APPARATUS AND METHOD FOR CONTROLLING VALVE

Номер: US20170002750A1
Автор: Huh Jeong Ki
Принадлежит:

An apparatus and a method for controlling a valve includes a first database which stores a plurality of first exhaust cam angles and outputs a first exhaust cam angles corresponding to a current engine speed and inflow air amount. A second database stores a plurality of second exhaust cam angles and outputs a second exhaust cam angles corresponding to the engine speed and inflow air amount. A target angle decision unit selects the exhaust cam angles outputted from the first and second databases as a target angle for controlling an operation of an exhaust valve, in accordance with a current gear stage of a vehicle. A camshaft control unit controls rotational motion of a camshaft coupled to the exhaust cam so that the exhaust cam reaches the target angle, in which the plurality of first exhaust cam angles are in a range in which the exhaust cam is not retarded. 1. An apparatus for controlling a valve , the apparatus comprising:a first database which stores a plurality of first exhaust cam angles, and outputs one of the plurality of first exhaust cam angles which corresponds to current engine speed and inflow air amount;a second database which stores a plurality of second exhaust cam angles, and outputs one of the plurality of second exhaust cam angles which corresponds to the engine speed and the inflow air amount;a target angle decision unit which selects one of the first and second exhaust cam angles outputted from the first and second databases as a target angle of an exhaust cam for controlling an operation of opening and closing an exhaust valve, in accordance with a current gear stage of a vehicle; anda camshaft control unit which controls rotational motion of a camshaft coupled to the exhaust cam so that the exhaust cam reaches the target angle,wherein the plurality of first exhaust cam angles are set to be in a range in which the exhaust cam is not retarded.2. The apparatus according to claim 1 , whereinthe target angle decision unit selects the first exhaust ...

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Номер записи: 18
07-01-2016 дата публикации

SYSTEM FOR SUPERCHARGING THE INTAKE GASES AND FOR RECIRCULATING THE EXHAUST GASES OF AN ENGINE AND ASSOCIATED CONTROL METHOD

Номер: US20160003134A1
Автор: Hodebourg Grégory, Potteau Sêbastien
Принадлежит: VALEO SYSTEMES DE CONTROLE MOTEUR

The invention concerns a system () for supercharging the intake gases and for recirculating the exhaust gases of an engine (), comprising: a supercharging circuit () comprising a turbocharger () to be driven by the exhaust gases from at least a first cylinder () of the engine (); a recirculating circuit () for the exhaust gases from at least a second cylinder (); and an exhaust gas-orienting device () winch is connected to the two circuits ( and ) and is intended to be connected to an exhaust line () of the engine () so as to control an amount of exhaust gas placed in communication between the supercharging circuit (), the recirculating circuit () and the exhaust line () of the engine (). 1. A system for supercharging the intake gases and recirculating the exhaust gases of an engine , said system comprising:a supercharging circuit comprising a turbocharger to be driven by the exhaust gases from at least a first cylinder of the engine;a recirculating circuit for the exhaust gases from at least one second cylinder; andan exhaust gas-orienting device that is connected to the two circuits and is able to be connected to an exhaust line of the engine so as to control an amount of exhaust gas placed into communication between the supercharging circuit, the recirculating circuit and the exhaust line of the engine.2. The system according to claim 1 , wherein the gas-orienting circuit is connected to the supercharging circuit at a discharge duct of the turbocharger.3. The system according to claim 1 , wherein the exhaust gas-orienting device comprises:an exhaust gas recirculation valve comprising: a body defining a primary duct designed to be connected to both the outlet of the at least one second cylinder, and to a gas recirculation duct, an auxiliary duct emerging in said primary duct, and means for orienting exhaust gases toward the outlet of the primary duct designed to be connected to said gas recirculation duct and/or toward the auxiliary duct;a discharge valve ...

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Номер записи: 19
07-01-2021 дата публикации

Hydraulic Drive for Accelerating and Braking Dynamically Moving Components

Номер: US20210003045A1
Автор: Omanovic Andyn, Schneider Wolfgang, Soltic Patrik
Принадлежит:

In order to ensure a simple, reliable and recuperative operation in a hydraulic drive () for accelerating and braking a gas exchange valve () of internal combustion engines or other reciprocating engines, it is proposed that a first pressure reservoir () for providing a first pressure pcomprises a restoring energy accumulator, preferably configured as a spring (), and at least one hydraulic base pressure reservoir (), which has a lower pressure pthan the first pressure reservoir (). In a connecting line () between the first hydraulic pressure reservoir () and the working cylinder (), a controllable opening () of a first valve () comprising at least one check valve () is arranged upstream or downstream in the flow path, which allows the pressure medium () to flow in the direction of working cylinder (), but prevents a backflow towards the pressure reservoir (). 2. The hydraulic drive according to claim 1 , characterized in that in a second connecting line between the first pressure reservoir and the working cylinder there is provided a controllable opening of a second valve comprising at least one claim 1 , preferably spring-loaded check valve claim 1 , which is arranged serially in the flowpath upstream claim 1 , within or downstream claim 1 , preventing a flow in a direction towards the working cylinder claim 1 , but allowing a backflow in a direction towards the pressure reservoir.3. The hydraulic drive according to claim 2 , characterized in that the drive comprises at least a second pressure reservoir with a pressure p claim 2 , and that the controllable opening of the second valve is connected with this second pressure reservoir instead of with the first pressure reservoir claim 2 , wherein the pressure (p) of the second pressure reservoir is preferably between the pressure of the hydraulic base pressure reservoir pand the first pressure pand is preferably chosen so low that the gas exchange valve can reliably swing back onto the valve seat during the closing ...

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Номер записи: 20
12-01-2017 дата публикации

CAMSHAFT ADJUSTER

Номер: US20170009615A1
Автор: Brenner Holger
Принадлежит:

A camshaft adjuster including a stator and a rotor, wherein the stator and the rotor are arranged such as to be able to rotate relative to one another, the camshaft adjuster has a cover which is connected to the stator or to the rotor such as to rotate therewith, and wherein the stator an/or the rotor and/or the cover has a through-opening which is at least partially penetrated by a screw, wherein the camshaft adjuster has a threaded bushing which is inserted in the through-opening and which includes a tubular piece having an internal screw thread and a radial collar arranged at one end of the tubular piece, wherein the screw engages in the threaded bushing, the threaded bushing has a bearing face which is arranged in the transition from the radial collar to the tubular piece and which is oriented at an angle to a longitudinal axis of the tubular piece, and the threaded bushing bears with the bearing face against a correspondingly shaped counterface of the stator an/or of the rotor and/or of the cover. 19-. (canceled)10. A camshaft adjuster comprising:a stator and a rotor rotatably situated relative to each other;a cover rotatably fixedly connected to the stator or the rotor; andthe stator or the rotor or the cover having a through-opening at least partially penetrated by a screw; anda threaded bushing inserted into the through-opening and including a tube piece having a female thread and a radial collar situated on one end of the tube piece, the screw engaging with the threaded bushing; the threaded bushing having a contact surface situated in a transition between the radial collar and the tube piece and obliquely oriented with respect to a longitudinal axis of the tube piece, the threaded bushing abutting a correspondingly shaped mating surface of the stator or the rotor or the cover via the contact surface.11. The camshaft adjuster as recited in wherein the radial collar is countersunk in the through-opening.12. The camshaft adjuster as recited in wherein the ...

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Номер записи: 21
27-01-2022 дата публикации

ROCKER ARM ASSEMBLY WITH LOST MOTION SPRING CAPSULE

Номер: US20220025788A1
Автор: Andrisani Nicola, Radulescu Andrei, Rezkalla Ramy
Принадлежит: Eaton Intelligent Power Limited

A valve train arrangement constructed in accordance to one example of the present teachings includes a rocker arm, a deactivating hydraulic lash adjuster (HLA) capsule, a lost motion spring (LMS) capsule and a lever. The rocker arm has a first end and a second end. The second end cooperates with a valve. The HLA capsule cooperates with the first end of the rocker arm. The LMS capsule has a lost motion spring. The LMS capsule is located in a position on the valve train arrangement that is offset from the HLA capsule. The lever is configured between the HLA capsule and the LMS capsule. During cylinder deactivation, load is transferred from the HLA capsule to the lever arm and ultimately to the lost motion spring in the LMS capsule. 1. A valve train arrangement comprising:a rocker arm having a first end and a second end, the second end cooperating with a first valve;a deactivating hydraulic lash adjuster (HLA) capsule cooperating with the first end of the rocker arm;a lost motion spring (LMS) capsule having a lost motion spring, the LMS capsule located in a position on the valve train arrangement that is offset from the HLA capsule; anda lever configured between the HLA capsule and the LMS capsule wherein during cylinder deactivation, load is transferred from the HLA capsule, to the lever arm and ultimately to the lost motion spring in the LMS capsule.2. The valve train arrangement of wherein the LMS capsule includes a capsule housing that receives the lost motion spring.3. The valve train arrangement of wherein the LMS capsule further includes a spring cap that bears against the lever arm.4. The valve train arrangement of wherein the lever arm includes an extension lobe that bears against the spring cap.5. The valve train arrangement of claim 4 , wherein the lost motion spring bears against the spring cap.6. The valve train arrangement of wherein the LMS capsule housing further receives a lever pin and wherein during movement of the lever arm claim 4 , the lever arm ...

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Номер записи: 22
14-01-2016 дата публикации

VALVE GEAR FOR ENGINE

Номер: US20160010517A1
Автор: YOKOTA Shuichi, Yoshimoto Daisuke
Принадлежит: SUZUKI MOTOR CORPORATION

A valve gear for an engine, includes: a camshaft phase varying device by which a rotational phase of a camshaft for opening/closing valves of the engine can be changed relatively to that of a crankshaft; and a holder that is provided so that the holder can be removably attached to the camshaft in a state where the holder has held constituent components of the camshaft phase varying device. 1. A valve gear for an engine , comprising:a camshaft phase varying device by which a rotational phase of a camshaft for opening/closing valves of the engine can be changed relatively to that of a crankshaft; anda holder that is provided so that the holder can be removably attached to the camshaft in a state where the holder has held constituent components of the camshaft phase varying device.2. The valve gear for an engine according to claim 1 , wherein the constituent components of the camshaft phase varying device comprises:a driven member that cannot be displaced axially relatively to the camshaft but can be displaced rotationally relatively to the camshaft;a guide member that is provided rotatably together with the camshaft so that the guide member can be displaced rotationally and axially relatively to the driven member;a centrifugal weight that is disposed between the driven member and the guide member; andan urging member that urges the driven member and the guide member so as to make the driven member and the guide member close to each other.3. The valve gear for an engine according to claim 1 , wherein a spline key is provided in the holder claim 1 , and the guide member is held in the holder so that the guide member can move axially along the spline key.4. The valve gear for an engine according to claim 2 , wherein a spline key is provided in the holder claim 2 , and the guide member is held in the holder so that the guide member can move axially along the spline key.5. The valve gear for an engine according to claim 1 , wherein the holder is attached to an axial end of ...

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Номер записи: 23
11-01-2018 дата публикации

Rocker arm bushing inserts

Номер: US20180010489A1
Автор: Jones Paul Stephen
Принадлежит:

Harley Davidson motorcycles motors have a gap between the rocker arm shaft and the cam plate bolt, this bolt is supposed to lock the rocker arm shaft but because of the gap the shaft rotates with the rocker arm, hitting the bolt causing an annoying tick. The Rocker arm bushing inserts go between the rocker arm support plate bolt and the rocker arm shaft locking the shaft and preventing it from rotating and hitting the bolt that cause an annoying tick. The bushings are called Rocker arm bushing inserts. Each cylinder head requires two inserts, or four per motor. Inserts can be made from any material and length can vary. Inserts must fit inside a 11/32 hole and around a 5/16 bolt shank. 1. The rocker arm bushing inserts fit between the bolt and the rocker arm shaft locking the shaft from turning and eliminate the shaft from rotating and hitting the bolt , eliminating the annoying tick that so many Harley motors witness.2. The Rocker arm bushings also center the rocker cam support plate so that it is always located in the same position eliminating different wear patterns on the rocker arm/valve and better alignment of the pushrod in the holes. This is a request to convert application 62/200,017 to a Non provisional patent. See note below in history.The gap between the shaft and bolt on Harley motors has been a known but little publicized problem, most people used a set screw or Loctite to stop the movement of the shaft to stop it from hitting the bolt.While studying my rocker arm assembly I realized that a bushing between the bolt and shaft would be a better solution, so I designed and perfected the rocker arm busing inserts.I then contacted John Lindsay (listed in the original provisional patent) to manufacture and promote the product called Rocker Lockers, and possibly form a business partnership. (That is why his name is on the provisional patent.)That partnership never developed and we went our separate ways and he started selling a “similar” product.I have ...

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Номер записи: 24
14-01-2021 дата публикации

SWITCHING ROLLER FINGER FOLLOWER FOR VALVETRAIN

Номер: US20210010394A1
Автор: JR. James E., McCarthy, PATIL Santosh, Stretch Dale A., Vance Matthew A.
Принадлежит: Eaton Intelligent Power Limited

A rocker arm can comprise a forked outer arm assembly and a T-shaped inner arm assembly comprising an inner arm body comprising a valve side, a latch side, a bearing hole on the valve side, and a latch body on the latch side, the latch body comprising inner arm extensions extending away from the latch body. A pivot axle can connect the outer arm assembly to the inner arm assembly so that the inner arm assembly is configured to pivot with respect to the outer arm assembly. A latch assembly can comprise a latch configured to selectively extend to and retract from a latch seat on the latch body to selectively lock the inner arm assembly with respect to the outer arm assembly or unlock the inner arm assembly to pivot within the outer arm assembly. 1. A rocker arm , comprising:a forked outer arm assembly comprising a valve side, a pivot side, a pivot side body connecting a first outer arm and a second outer arm, and respective bearing holes in each of the first outer arm and the second outer arm;a T-shaped inner arm assembly comprising an inner arm body comprising a valve side, a latch side, a bearing hole on the valve side, and a latch body on the latch side, the latch body comprising inner arm extensions extending away from the latch body;a pivot axle connecting the bearing holes of the first outer arm and the second outer arm with the bearing hole of the inner arm assembly so that the inner arm assembly is configured to pivot with respect to the outer arm assembly; anda latch assembly mounted in the pivot side body, the latch assembly comprising a latch configured to selectively extend to and retract from a latch seat on the latch body to selectively lock the inner arm assembly with respect to the outer arm assembly or unlock the inner arm assembly to pivot within the outer arm assembly.2. The rocker arm of claim 1 , further comprising:a bearing axle hole between the latch body and the bearing hole;a bearing axle in the bearing axle hole; andat least one bearing ...

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Номер записи: 25
14-01-2021 дата публикации

ROCKER ARM WITH AN OIL TROUGH

Номер: US20210010395A1
Автор: Copper Anthony
Принадлежит:

A rocker arm assembly having a rocker arm including a pair of sidewalls, each sidewall defining a support aperture, a rocker arm support including a pair of opposed bearing support arms, each bearing support arm being disposed within a corresponding support aperture of the rocker arm and defining a lubrication groove extending along an outer surface thereof, and a pair of radial roller bearings, each including an inner cup, an outer cup, and a plurality of rollers disposed therebetween, wherein each radial roller bearing is disposed both on a corresponding bearing support arm and within a corresponding support aperture. 1. A rocker arm assembly comprising:a rocker arm including a pair of sidewalls, each sidewall defining a support aperture;a rocker arm support member including a pair of opposed bearing support arms, each bearing support arm being disposed within a corresponding support aperture of the rocker arm and defining at least one lubrication groove extending along an outer surface thereof; anda pair of radial roller bearings, each including an inner cup, an outer cup, and a plurality of rollers disposed therebetween,wherein each radial roller bearing is disposed both on a corresponding bearing support arm and within a corresponding support aperture.2. The rocker arm assembly of claim 1 , wherein the outer surface of the bearing support arm along which the at least one lubrication groove extends is a top surface of the bearing support arm.3. The rocker arm assembly of claim 2 , wherein the at least one lubrication groove further comprises a plurality of lubrication grooves.4. The rocker arm assembly of claim 2 , wherein the inner cup of each radial bearing assembly has an inner cylindrical surface that is directly adjacent the outer surface of the corresponding bearing support arm.5. The rocker arm assembly of claim 2 , wherein the outer cup of each radial roller bearing includes a cylindrical side wall and a solid top wall that is perpendicular thereto.6. ...

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Номер записи: 26
14-01-2021 дата публикации

Engine

Номер: US20210010444A1
Автор: Kota Tokubi, Soji Kashima, Toshiro Kiura
Принадлежит: Honda Motor Co Ltd

An engine is provided with: a crank case that has a first crank shaft insertion hole and a second crank shaft insertion hole along the vertical direction; a crank shaft that is inserted into the first and second shaft insertion holes; and a cylinder unit that extends in the front-rear direction from the crank case. The cylinder unit is provided with a cylinder base that is positioned inside the crank case, and a cylinder block that is positioned outside the crank case. The cylinder unit is detachably attached to the crank case.

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Номер записи: 27
15-01-2015 дата публикации

DEVICE FOR THE VARIABLE CONTROL OF AT LEAST ONE VALVE, FOR EXAMPLE FOR A RECIPROCATING ENGINE

Номер: US20150013630A1
Автор: Melchior Jean Frederic
Принадлежит:

A device for controlling at least one valve, the device comprising a body having a non-deformable cavity communicating exclusively with the outside via at least four rectilinear cylinders that are closed respectively by an opening piston (P) actuated by an opening cam (C), a closing piston (P) actuated by a closing cam (C), a shuttle piston (Pa) serving to load or unload the device, and a piston (Ps) that is mechanically connected to the valve. By adjusting the angular phase shift between the opening and closing cams (C, C), the control device of the invention makes it possible in operation to adjust the lift of the valve, the angular duration of the opening of the valve, and if necessary, to deactivate the valve completely throughout the duration of a cycle. 1121122121212. A control device for actuating at least one valve , e.g. for a reciprocating engine , the valve being driven with reciprocating motion in rectilinear translation to open or close an orifice having a sealing seat , said valve including resilient return means urging said valve towards a closed position , said device comprising a body including a non-deformable cavity communicating exclusively with the outside via at least four rectilinear cylinders that are closed respectively by four pistons (P , P , Pa , Ps) , each of said pistons being movable in reciprocating motion between a respective bottom dead-center remote from the inside of the cavity and a top dead-center close to the inside of the cavity , the device being characterized in that said pistons comprise a piston (Ps) mechanically connected to the valve and opposing its return means , an opening piston (P) actuated by an opening cam (C) that is driven in rotation by a first shaft , a closing piston (P) actuated by a closing cam (C) that is driven in rotation by a second shaft that rotates synchronously with the first shaft and that may be offset in operation relative to the first shaft through an adjustable angle , and a shuttle piston (Pa) ...

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Номер записи: 28
03-02-2022 дата публикации

Module for a variable-lift valve train of an internal combustion engine

Номер: US20220034242A1
Автор: Benedikt Noe
Принадлежит: Schaeffler Technologies AG and Co KG

The disclosure relates to a preassembled module of a variable-lift valve train for an internal combustion engine. The module includes an electric linear actuator that lies on a top side of a base plate of the module. A slide plate, movable by the electric linear actuator by means of a linear guide, also lies on the top side of the base plate. A retaining wall extends under a bottom side of the base plate and has two actuation fingers. A free end of each actuation finger includes a contract surface for moving a coupling slide of a switchable rocker arm. In a region of an outer transverse side of the slide plate, a contact wall arranged in front of the electric linear actuator extends upward. The contact wall contacts an actuation pin of the electric linear actuator to move the slide plate in a longitudinal direction.

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Номер записи: 29
21-01-2016 дата публикации

ROCKER ARM ASSEMBLY FOR VALVE ACTUATION SYSTEMS

Номер: US20160017766A1
Автор: Cress James J.
Принадлежит: CATERPILLAR INC.

A rocker arm assembly for a valve actuation system of an engine is disclosed. The engine has at least one valve. The rocker assembly includes a rocker arm with a valve retention end, a valve bridge with a rocker engagement portion. The rocker engagement portion sustains an engaged position and a released position relative to the valve retention end. Further, a spring unit is disposed between the valve retention end and the rocker engagement portion. In the engaged position, the valve retention end is in operable abutment with the rocker engagement portion. In the released position, the spring unit is configured to provide a reaction force between the valve retention end and the rocker engagement portion to disconnect the valve bridge from the rocker arm.

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Номер записи: 30
21-01-2016 дата публикации

SYSTEM COMPRISING AN ACCUMULATOR UPSTREAM OF A LOST MOTION COMPONENT IN A VALVE BRIDGE

Номер: US20160017773A1
Автор: BALTRUCKI Justin, GRON G. Michael, Lu Biao
Принадлежит:

Systems for actuating at least two engine valves comprise a valve bridge operatively connected to the at least two engine valves and having a hydraulically-actuated lost motion component. The lost motion component comprises a lost motion check valve disposed therein. A rocker arm has a motion receiving end configured to receive valve actuation motions from a valve actuation motion source and a motion imparting end for conveying the valve actuation motions and hydraulic fluid to the lost motion component. The rocker arm is in fluid communication with a hydraulic fluid supply. The systems also comprise an accumulator in fluid communication with the hydraulic fluid supply and disposed upstream of the lost motion check valve. In all embodiments, a fluid supply check valve may be disposed upstream of the accumulator and configured to prevent flow of hydraulic fluid from the accumulator back to the hydraulic fluid supply.

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Номер записи: 31
21-01-2016 дата публикации

Oil Control Valve System For Valve Actuation Switching

Номер: US20160017774A1
Автор: Zurface Austin Robert
Принадлежит:

An oil control valve system according to one example of the present disclosure incorporates a common or interchangeable oil control valve at distinct locations of an engine to direct operation of switching mechanisms over sets of three cylinders. In another aspect of the present disclosure, four interchangeable oil control valves are used in a six-cylinder engine. Utilizing interchangeable oil control valves minimizes design costs, reduces assembly time, lessens repair or replacement burdens, and allows for enhanced engine performance.

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Номер записи: 32
17-01-2019 дата публикации

METHOD FOR CALCULATING A RESIDUAL GAS MASS IN A CYLINDER OF AN INTERNAL COMBUSTION ENGINE AND CONTROLLER

Номер: US20190017449A1
Автор: MILLICH Elmar, PETERSEN Lars, SHURKEWITSCH Andre
Принадлежит: VOLKSWAGEN AKTIENGESELLSCHAFT

A method of calculating a residual gas mass in a cylinder of an internal combustion engine, wherein the cylinder has at least one intake valve and one exhaust valve, comprising: obtaining a cylinder residual gas mass base value that is based on a predefined model; determining a first cylinder residual gas mass value that indicates a cylinder residual gas mass remaining in the cylinder clearance volume after an expulsion of exhaust gas; determining a second cylinder residual gas mass value that indicates a cylinder residual gas mass flowing into the cylinder due to a valve overlap of the intake valve and the exhaust valve, wherein the second cylinder residual gas mass value is determined based on the cylinder residual gas mass base value and the first cylinder residual gas mass value; and calculating the residual gas mass in the cylinder, based on the first and second cylinder residual gas mass values. 1. A method for calculating a residual gas mass in a cylinder of an internal combustion engine , wherein the cylinder has at least one intake valve and one exhaust valve , comprising:obtaining a cylinder residual gas mass base value that is based on a predefined model;determining a first cylinder residual gas mass value that indicates a cylinder residual gas mass remaining in the cylinder clearance volume after an expulsion of exhaust gas;determining a second cylinder residual gas mass value that indicates a cylinder residual gas mass flowing into the cylinder due to a valve overlap of the intake valve and the exhaust valve, wherein the second cylinder residual gas mass value is determined based on the cylinder residual gas mass base value and the first cylinder residual gas mass value; andcalculating the residual gas mass in the cylinder, based on the first and second cylinder residual gas mass values.2. The method according to claim 1 , wherein the second cylinder residual gas mass value is determined by subtracting the first cylinder residual gas mass value from the ...

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Номер записи: 33
17-01-2019 дата публикации

CYLINDER HEAD COVER STRUCTURE FOR ENGINE

Номер: US20190017466A1
Автор: Fukui Suguru, Kashiwabara Takashi
Принадлежит:

A cylinder head cover structure for an engine includes a cylinder head cover. The cylinder head cover includes a metal cover member forming one end of the cylinder head cover in an engine length direction and a portion adjacent to the one end, and a resin cover member forming a portion of the cylinder head cover other than the metal cover member. The metal cover member is provided with a cam angle sensor attachment to which a cam angle sensor is attached, the cam angle sensor detecting a rotational position of a camshaft of the engine. 1. A cylinder head cover structure for an engine , the structure comprisinga cylinder head cover covering a top of a cylinder head of the engine, wherein a metal cover member forming one end of the cylinder head cover in an engine length direction and a portion adjacent to the one end; and', 'a resin cover member forming a portion of the cylinder head cover other than the metal cover member, and, 'the cylinder head cover includesthe metal cover member is provided with a cam angle sensor attachment to which a cam angle sensor is attached, the cam angle sensor detecting a rotational position of a camshaft of the engine.2. The structure of claim 1 , whereinthe cam angle sensor is one of two cam angle sensors and the cam angle sensor attachment is one of two cam angle sensor attachments,the metal cover member is provided with the two cam angle sensors spaced apart from each other in an engine width direction,a recess is formed on an end of the metal cover member toward the resin cover member in the engine length direction, and positioned between the two cam angle sensor attachments, the recess being notched away from the resin cover member in the engine length direction, anda protrusion is formed on an end of the resin cover member toward the metal cover member in the engine length direction, the protrusion protruding toward the metal cover member in the engine length direction to fit into the recess.3. The structure of claim 1 , whereina ...

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Номер записи: 34
26-01-2017 дата публикации

Method and Device for Inspecting a Valve Drive in an Internal Combustion Engine

Номер: US20170023699A1
Автор: VON SCHOENING Sebastian
Принадлежит:

A method for ascertaining a valve position of a valve of an internal combustion engine having a multiplicity of valves. The method includes illuminating a combustion chamber of the internal combustion engine, detecting light emerging from the illuminated combustion chamber on a side, averted from the combustion chamber, of the valve for ascertainment, and determining the valve position of the valve for ascertainment by way of the detected light. 1. A method for ascertaining a valve position of a valve of an internal combustion engine having a multiplicity of valves , the method comprising the acts of:illuminating a combustion chamber of the internal combustion engine;detecting light emerging from the illuminated combustion chamber on a side, averted from the combustion chamber, of the valve for ascertainment; anddetermining the valve position of the valve for ascertainment by way of the detected light.2. A method for ascertaining a respective valve position of at least two valves of an internal combustion engine having a multiplicity of valves , the method comprising the acts of:illuminating a combustion chamber of the internal combustion engine;detecting light emerging from the illuminated combustion chamber on a side, in each case averted from the combustion chamber, of the valves for ascertainment; anddetermining the respective valve position of the at least two valves for ascertainment on the basis of the light detected in each case.3. The method as claimed in claim 1 , wherein the step of detecting the emerging light is performed continuously or discontinuously.4. The method as claimed in claim 3 , wherein the step of detecting the emerging light comprises a detection of a change in a light intensity and/or an obstruction of the light emerging from the combustion chamber.5. The method as claimed in claim 4 , further comprising detecting a crank angle of a crankshaft of the internal combustion engine.6. The method as claimed in claim 5 , wherein the internal ...

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Номер записи: 35
24-04-2014 дата публикации

METHOD AND SYSTEM FOR INTERNAL COMBUSTION ENGINE

Номер: US20140109850A1
Автор: GONIGMAN Itzhak, SINAI Moshe
Принадлежит:

It is disclosed a method for operating an improved internal combustion engine. An intake valve and an exhaust valve control closing and opening of respective intake and exhaust apertures. The engine includes a separating aperture between the cylinder and a separation chamber, and a controlling separating valve. The separation chamber is connected to the intake and exhaust manifolds respectively by the intake and exhaust apertures. The method includes opening the separating valve. While it is open, the exhaust valve opens and then closes, and then the intake valve opens enabling gas flow from the intake manifold to the cylinder volume through the open intake aperture, the separation chamber and the open separating aperture. The method includes closing the intake valve and closing the separating valve. Thereby, gas flow from the intake manifold stops, isolating the separation chamber from the cylinder volume and providing double isolation during compression and combustion strokes. 1. A method for operating an improved internal combustion engine unit , the engine unit having a piston moving in a cylinder enclosing cylinder volume , an intake valve controlling closing and opening of an intake aperture connecting the cylinder volume to an intake manifold , and an exhaust valve controlling closing and opening an exhaust aperture connecting the cylinder volume to an exhaust manifold , the improved engine unit further comprising a separating aperture between the cylinder and a separation chamber , and a separating valve for controlling closing and opening said separating aperture , the separation chamber being connectable to the intake manifold and to the exhaust manifold respectively by the intake and exhaust apertures , the method of operating the improved engine unit comprising:(a) opening said separating valve and while said separating valve is open:(i) opening the exhaust valve, enabling combusted gas flow from the cylinder volume to the exhaust manifold through the ...

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Номер записи: 36
23-01-2020 дата публикации

MODULE OF A VARIABLE VALVE DRIVE OF AN INTERNAL COMBUSTION ENGINE

Номер: US20200025043A1
Автор: Christgen Wolfgang, Schmidt Volker
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A module of a variable valve drive of an internal combustion engine is proposed that includes a push rod mounted longitudinally in a cylinder head of the internal combustion engine. The push rod is actuated by a linear actuator that includes an armature that makes contact, at least indirectly with the push rod, to displace it in a first longitudinal direction. A switchable rocker arm with a coupling slide arranged transversely to a longitudinal extent or side of the rocker arm corresponds to an actuating finger that extends from the push rod. The coupling slide includes a slide part that projects laterally from the rocker arm and can be acted upon by a free end of the actuating finger. Kinetic energy of the push rod is dissipated or converted at least partially via a separate damper in the first longitudinal direction before it reaches a final position. 1. A module of a variable valve drive of an internal combustion engine , comprisinga push rod configured to be mounted longitudinally in a cylinder head of the internal combustion engine, the push rod having an actuating finger;a linear actuator having an armature, the armature configured to displace the push rod in a first longitudinal direction;a switchable rocker arm having a coupling slide arranged transversely to a longitudinal side of the switchable rocker arm, the coupling slide arranged to be actuated by the actuating finger; andas the push rod is displaced by the linear actuator, kinetic energy of the push rod is dissipated at least partially by a damper.2. The module as claimed in claim 1 , wherein an electronic actuator is applied as the linear actuator.3. The module as claimed in claim 1 , wherein the damper acts upon the push rod before the push rod reaches a final position configured as a stop on the cylinder head.4. The module as claimed in claim 1 , wherein the damper dissipates kinetic energy of the push rod as the push rod moves in the first longitudinal direction.5. The module as claimed in claim 1 ...

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Номер записи: 37
28-01-2021 дата публикации

ROCKER SUPPORT BOLT BUSHING

Номер: US20210025296A1
Автор: Lindsay John P.
Принадлежит:

A metallic bushing that deforms under a force applied substantially parallel to its central longitudinal axis and then expands radially to take up the gap between a support bolt and a rocker arm shaft in an internal combustion engine in order to eliminate unwanted motion and subsequent excess engine noise. 1. An engine insert system , comprising:a bushing having a proximal end and a distal end, an inner surface and an outer surface,and an inner diameter and an outer diameter,wherein the outer diameter varies longitudinally;wherein the outer diameter and the inner diameter are selected to eliminate motion of a rocker arm shaft relative to a bolt while an engine is in operation;a rocker arm support;a bolt;a rocker arm shaft;wherein a space exists between said bolt and rocker arm shaft;wherein said bolt selectively engages with the inner diameter of said bushing; andapplies a force to the bushing causing said bushing to deform and fill said space between a bolt and a rocker arm shaft.2. The system of claim 1 , wherein the outer diameter of the proximal end of said bushing is larger than the outer diameter of the distal end of said bushing.3. The system of claim 2 , wherein the outer surface of said bushing tapers from the proximal end to the distal end of said bushing;4. The system of claim 3 , further comprising a longitudinal slit along the length of said bushing.5. The system of claim 4 , wherein said force is applied substantially parallel to the central longitudinal axis of said bushing.6. The system of claim 5 , wherein said force is created by the tightening of said bolt.7. An engine insert system claim 5 , comprising:a bushing having a proximal end and a distal end, an inner surface and an outer surface,and an inner diameter and an outer diameter, and a thicknesswherein the outer diameter varies longitudinally;wherein the inner diameter varies longitudinally;wherein the outer diameter of the proximal end of said bushing is larger than the outer diameter of the ...

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Номер записи: 38
02-02-2017 дата публикации

SYSTEM AND METHODS FOR PURGING RESIDUAL EXHAUST AND UNCOMBUSTED FUEL TO A FUEL VAPOR CANISTER

Номер: US20170030271A1
Автор: Dudar Aed M.
Принадлежит:

Methods and systems are provided for purging uncombusted fuel and exhaust from a vehicle engine to a fuel vapor canister. In one example, during a first condition, an electric motor is operated to rotate the vehicle engine in a reverse direction, and purging contents of one or more engine cylinders to the fuel vapor canister. In this way, fresh air is drawn through an engine exhaust, forcing hydrocarbons to the fuel vapor canister, and reducing potential bleed emissions. 1. A method for a vehicle engine , comprising:during a first condition, operating an electric motor to rotate the vehicle engine in a reverse direction; andpurging contents of one or more engine cylinders to a fuel vapor canister.2. The method of claim 1 , further comprising:purging contents of an engine exhaust to the fuel vapor canister.3. The method of claim 2 , wherein rotating the vehicle engine in a reverse direction comprises rotating the vehicle engine in an opposite direction from a default direction claim 2 , and further comprises rotating the vehicle engine to generate a vacuum in an engine exhaust.4. The method of claim 1 , wherein the first condition comprises a vehicle-off condition.5. The method of claim 1 , wherein the first condition comprises a canister load below a threshold.6. The method of claim 1 , wherein the vehicle engine is rotated in a reverse direction without combusting fuel claim 1 , the method further comprising during a second condition claim 1 , operating the motor to rotate the engine in a forward direction.7. The method of claim 1 , further comprising:closing a throttle valve prior to purging contents of one or more engine cylinders to the fuel vapor canister.8. The method of claim 1 , wherein purging contents of one or more engine cylinders to the fuel vapor canister comprises opening a canister purge valve.9. The method of claim 1 , wherein purging contents of one or more engine cylinders to the fuel vapor canister comprises sequentially opening a cylinder ...

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Номер записи: 39
04-02-2016 дата публикации

METHOD AND SYSTEM FOR DIAGONAL BLOW-THROUGH EXHAUST GAS SCAVENGING

Номер: US20160032843A1
Автор: Boyer Brad Alan, Ulrey Joseph Norman, VanDerWege Brad Alan
Принадлежит:

Methods and systems are provided for operating an engine in a two-valve diagonal blow-through mode during which a majority of blow-through is directed via a first intake valve positioned diagonally across a first exhaust valve in order to increase a distance of flow path from the intake valve to the exhaust valve. 1. A method for an engine including one or more four-valve cylinder , comprising:during a first positive valve overlap mode, flowing more blow-through from an intake manifold to an exhaust manifold through a first intake valve and a first exhaust valve than through a second intake valve and a second exhaust valve of the cylinder.2. The method of claim 1 , wherein the first intake valve is positioned diagonally across the first exhaust valve in a cylinder head of the cylinder claim 1 , and the second intake valve is positioned diagonally across the second exhaust valve.3. The method of claim 2 , further comprising during a second positive valve overlap mode claim 2 , flowing blow-through through the first intake valve claim 2 , the second intake valve claim 2 , the first exhaust valve claim 2 , and the second exhaust valve.4. The method of claim 3 , wherein during the first positive valve overlap mode claim 3 , a duration of first intake valve lift is greater than a duration of second intake valve lift claim 3 , and a duration of first exhaust valve lift is greater than a duration of second exhaust valve lift.5. The method of claim 3 , wherein during the second positive valve overlap mode claim 3 , a duration of first intake valve lift is equal to a duration of second intake valve lift claim 3 , and a duration of first exhaust valve lift is equal to a duration of second exhaust valve lift.6. The method of claim 3 , further comprising claim 3 , during the first overlap mode claim 3 , not providing positive overlap between the second intake valve and the second exhaust valve when providing positive overlap between the first intake valve and the second intake ...

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Номер записи: 40
11-02-2016 дата публикации

INTERNAL COMBUSTION ENGINE WITH PORT COMMUNICATION

Номер: US20160040588A1
Автор: MARTEL Eric-Pierre, ROUSSEAU Patrick, THOMASSIN Jean
Принадлежит:

A method of feeding air to an internal combustion engine having at least first and second internal cavities, including: completing the intake phase of the first combustion chamber of the first internal cavity by feeding compressed air into the first combustion chamber until a maximum volume thereof is reached; during a beginning of the compression phase of the first combustion chamber and a simultaneous beginning of the intake phase of the second combustion chamber of the second internal cavity, feeding compressed air from the first combustion chamber into the second combustion chamber; closing a communication between the first and second combustion chambers and completing the intake phase of the second combustion chamber by feeding compressed air into the second combustion chamber until a maximum volume thereof is reached. 1. A method of feeding air to an internal combustion engine having at least first and second internal cavities , the first internal cavity defining at least a first combustion chamber , the second internal cavity defining at least a second combustion chamber , the first and second combustion chambers each having a variable volume and undergoing a cycle defining successive phases of intake , compression , combustion and exhaust , the method comprising:completing the intake phase of the first combustion chamber by feeding compressed air into the first combustion chamber until a maximum volume thereof is reached;during a beginning of the compression phase of the first combustion chamber and a simultaneous beginning of the intake phase of the second combustion chamber, feeding compressed air from the first combustion chamber into the second combustion chamber;closing a communication between the first and second combustion chambers and completing the intake phase of the second combustion chamber by feeding compressed air into the second combustion chamber until a maximum volume thereof is reached.2. The method as defined in claim 1 , wherein the first ...

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Номер записи: 41
09-02-2017 дата публикации

OIL JET ARM AND METHOD FOR LUBRICATING CHAIN SPAN EMPLOYING SAID OIL JET ARM, AND CHAIN TENSIONING DEVICE AND METHOD FOR LUBRICATING CHAIN SPAN EMPLOYING SAID CHAIN TENSIONING DEVICE

Номер: US20170037956A1
Автор: MISHIMA Kunihiko
Принадлежит:

The problem to be solved by the present invention lies in making it possible to reduce costs and to reduce the size of an oil pump, without impeding the degree of freedom in chain layout. An oil jet is constructed in order to supply lubricating oil to a tension-side span of a chain C while also causing a tensioning force to act on a slack-side span of the chain C. The oil jet arm is provided with a pivoting-side part A, and a tip-end side part B which is provided in such a way as to be pivotable about the pivoting-side part A and is acted on by a pressing force from a piston of a hydraulic tensioner and an oil ejection hole for ejecting to the outside oil supplied from an oil discharge hole in the piston is formed in the tip-end side part B. Oil ejected from the oil ejection hole is supplied to a portion E on the meshing start side with a sprocket on the tension-side span of the chain C. 1. An oil jet arm for supplying lubricating oil to a tension-side span of a chain while causing a tensioning force to act on a slack-side span of the chain ,said oil jet arm being provided with a pivoting-side part, and a tip-end side part which is provided in such a way as to be pivotable about the pivoting-side part and is acted on by a pressing force from a piston of a hydraulic tensioner, andsaid oil jet arm comprises an oil ejection hole for ejecting to the outside oil introduced from the piston or from the pivoting-side part.2. The oil jet arm as claimed in claim 1 , wherein the oil which is ejected from the oil ejection hole is supplied to a portion on the meshing start side with a sprocket on the chain tension-side span.3. The oil jet arm as claimed in claim 1 , wherein the oil ejection hole is provided in the tip-end side part or in the pivoting-side part.4. The oil jet arm as claimed in claim 1 , wherein the oil ejection hole is provided in the pivoting-side part claim 1 , and an oil path for feeding claim 1 , to the pivoting-side part claim 1 , oil introduced from the ...

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Номер записи: 42
06-02-2020 дата публикации

SWITCHABLE ROCKER ARM

Номер: US20200040775A1
Автор: Andrisani Nicola, LORENZON Alessio, RAIMONDI Emanuele
Принадлежит:

A valve train assembly includes: at least one dual body rocker arm having a first body, a second body, a latching arrangement for latching and unlatching the first body and the second body, the latching arrangement having a latching pin that is biased to an unlatched configuration; and an actuator arrangement for controlling the latching arrangement, the actuator arrangement being able to contact the latching arrangement to cause the latching pin to be moved into a latched configuration in which it latches the first and second bodies together. In use, movement of the rocker arm under action of a cam to cause a valve event moves the actuator arrangement out of contact with the latching arrangement while a contact force between the latching pin and one or other of the first and second bodies maintains the latching pin in the latched configuration. 1. A valve train assembly , comprising:at least one dual body rocker arm comprising a first body, a second body, a latching arrangement configured to latch and unlatch the first body and the second body, the latching arrangement comprising a latching pin that is biased to an unlatched configuration; andan actuator arrangement configured to control the latching arrangement, the actuator arrangement being configured to contact the latching arrangement to cause the latching pin to be moved into a latched configuration in which it latches the first and second bodies together,wherein, in use, movement of the rocker arm under action of a cam to cause a valve event moves the actuator arrangement out of contact with the latching arrangement while a contact force between the latching pin and one or other of the first and second bodies maintains the latching pin in the latched configuration.2. The valve train assembly according to claim 1 , wherein the first body comprises an inner body of the dual body rocker arm claim 1 , the second body comprises an outer body of the dual body rocker arm claim 1 , and the contact force that ...

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Номер записи: 43
06-02-2020 дата публикации

METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE, AND INTERNAL COMBUSTION ENGINE

Номер: US20200040828A1
Автор: GESSENHARDT Christopher
Принадлежит: VOLKSWAGEN AKTIENGESELLSCHAFT

A method for a combustion motor that is initially used in a full Miller cycle or full Atkinson cycle that is advantageous with regard to efficiency. In full operation, a switchover to a partial operation takes place, wherein the intake valves associated with the combustion chambers that are to continue to be operated are switched over to actuation in accordance with a second valve lifting curve in order to achieve a switchover that is as torque-neutral as possible and is optimal with regard to efficiency. The closing time of the intake valve brought about by this second valve lifting curve is designed with respect to maximum volumetric efficiency. 1. A method for operating an internal combustion engine comprising a combustion motor that forms at least two combustion chambers , which are delimited by cylinders formed in a cylinder housing and by pistons that are guided therein , and in which thermodynamic cycles are performed during operation of the internal combustion engine , wherein a gas exchange in the combustion chambers is then controlled by at least one intake valve and at least one exhaust valve , the method comprising:providing a first operating state in which the thermodynamic cycles are performed in a first combustion chamber as well as in a second combustion chamber;providing a second operating state in which the thermodynamic cycles are performed in the first combustion chamber and the thermodynamic cycles are not performed in the second combustion chamber;performing, for a switchover from the first operating state to the second operating state, a change from a use of a first valve lifting curve to a use of a second valve lifting curve for actuation of the intake valve associated with the first combustion chamber;closing at least the intake valve associated with the first combustion chamber before or after BDC in the case of an actuation according to the first valve lifting curve and closer to BDC in the case of an actuation according to the second ...

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Номер записи: 44
18-02-2021 дата публикации

METHOD FOR ADAPTATION OF A DETECTED CAMSHAFT POSITION, CONTROL UNIT FOR CARRYING OUT THE METHOD, INTERNAL COMBUSTION ENGINE, AND VEHICLE

Номер: US20210047946A1
Автор: BLUME Holger, FORST Johannes, GERHARDT Nico, JESCHKE Jens, MAZUR Michael
Принадлежит: VOLKSWAGEN AKTIENGESELLSCHAFT

A method for adaptation of a detected camshaft position of a camshaft in an internal combustion engine with: Detection of an ACTUAL gas signal in a gas space that is associated with the camshaft and is associated with a detected camshaft position; Processing of the gas signal to produce an ACTUAL gas criterion; Modeling of multiple simulated gas criteria, each of which is associated with a target camshaft position; Determination of a simulated gas criterion with the least deviation from the ACTUAL gas criterion; Determination of an ACTUAL camshaft position that corresponds to the simulated gas criterion with the least deviation from the ACTUAL gas criterion; Determination of a camshaft position correction value from the difference between the ACTUAL camshaft position determined and the detected camshaft position; Determination of corrected camshaft positions by correcting the detected camshaft positions with the camshaft position correction value. 1. A method for adaptation of a detected camshaft position of a camshaft in an internal combustion engine , the method comprising:detecting an ACTUAL gas signal in a gas space that is associated with the camshaft and is associated with a detected camshaft position;processing the gas signal to produce an ACTUAL gas criterion;modeling multiple simulated gas criteria, which are associated with a target camshaft position;comparing the simulated gas criteria with the ACTUAL gas criterion;determining a simulated gas criterion with the least deviation from the ACTUAL gas criterion;determining an ACTUAL camshaft position that corresponds to the simulated gas criterion with the least deviation from the ACTUAL gas criterion;determining a camshaft position correction value from the difference between the ACTUAL camshaft position determined and the detected camshaft position; anddetermining at least one corrected camshaft position by correcting the detected camshaft positions with the camshaft position correction value.2. The method ...

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Номер записи: 45
15-02-2018 дата публикации

LOW PROFILE SWITCHABLE FINGER FOLLOWER

Номер: US20180045082A1
Автор: Ahmed Faheem, Foster Colin
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A switchable finger follower is provided having an inner lever with a sliding pad located between first and second inner lever ends. The sliding pad has at least one of an anti-friction coating or a surface finish of Ra 0.05 or better forming a cam contact surface. An outer lever supports the inner lever, and includes a first outer lever end mounted for pivoting movement at the first end of the inner lever by a pivot axle. A coupling pin is arranged on one of the inner or outer levers on an end opposite from the pivot axle. The coupling pin has a coupling projection with a first locking surface, and is moveable from a first, locked position with the first locking surface engaged with a second locking surface located on the other of the inner lever or the outer lever, to a second, unlocked position. A lost motion element is arranged between the inner lever and the outer lever. 1. A switchable finger follower comprising:an inner lever having first and second inner lever ends, a sliding pad located between the first and second inner lever ends, the sliding pad having at least one of an anti-friction coating or a surface finish of Ra 0.05 or better forming a cam contact surface;an outer lever having two outer arms that extend along longitudinal sides of the inner lever, and a first outer lever end mounted for pivoting movement at the first end of the inner lever by a pivot axle;a coupling pin arranged to move longitudinally within a coupling pin bore located on one of the inner lever or the outer lever on an end opposite from the pivot axle, the coupling pin having a coupling projection with a first locking surface;the coupling pin is moveable from a first, locked position with the first locking surface engaged with a second locking surface located on the other of the inner lever or the outer lever, to a second, unlocked position where the first locking surface is not engaged with the second locking surface; anda lost motion element arranged between the inner lever and ...

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Номер записи: 46
25-02-2021 дата публикации

REFUSE VEHICLE BODY ASSEMBLY

Номер: US20210054942A1
Автор: Jax Kevin G., Weckwerth Clinton
Принадлежит: OSHKOSH CORPORATION

A vehicle includes a chassis, a cab coupled to the chassis, a body coupled to the chassis rearward of the cab, a bracket, and a valve assembly. The body defines a compartment. The body includes a bottom wall defining a horizontal plane and a front wall defining a vertical plane. The bracket has an arm that is coupled to and extends rearward from the front wall into the compartment at an angle such that the arm is neither parallel with the horizontal plane nor parallel with the vertical plane. The valve assembly is coupled to the bracket such that at least a portion of the valve assembly is disposed within the compartment. 1. A vehicle comprising:a chassis;a cab coupled to the chassis;a body coupled to the chassis rearward of the cab, the body defining a compartment, the body including a bottom wall defining a horizontal plane and a front wall defining a vertical plane;a bracket having an arm that is coupled to and extends rearward from the front wall into the compartment at an angle such that the arm is neither parallel with the horizontal plane nor parallel with the vertical plane; anda valve assembly coupled to the bracket such that at least a portion of the valve assembly is disposed within the compartment.2. The vehicle of claim 1 , wherein the front wall defines an aperture through which the valve assembly is accessible.3. The vehicle of claim 2 , wherein a portion of the valve assembly extends through the aperture.4. The vehicle of claim 2 , further comprising a removable panel coupled to the front wall claim 2 , the removable panel positioned to selectively enclose at least a portion of the aperture.5. The vehicle of claim 4 , further comprising:an engine; andan exhaust system coupled to the engine and configured to receive exhaust gasses from the engine;wherein the removable panel extends at least partially across the aperture to substantially isolate the valve assembly from the exhaust system.6. The vehicle of claim 1 , further comprising a conduit fluidly ...

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Номер записи: 47
13-02-2020 дата публикации

FOUR-STROKE INTERNAL COMBUSTION ENGINE THERETO RELATED VEHICLE AND METHOD

Номер: US20200049080A1
Автор: DAHL Andreas, OLOFSSON Eric
Принадлежит: SCANIA CV AB

A four-stroke internal combustion engine is disclosed. A camshaft and a crankshaft if the engine are synchronised to rotate at a same rotational speed. A first linkage arrangement is configured to change the motion of an exhaust valve head. A second linkage arrangement is configured to change the motion of the intake valve head. A control unit is configured for controlling the first linkage arrangement to selectively prevent or reduce the motion of the exhaust valve head and for controlling the second linkage arrangement to selectively prevent or reduce the motion of the intake valve head. 1. A four-stroke internal combustion engine comprising:a crankshaft;a crankshaft;at least one cylinder arrangement forming a combustion chamber and comprising: a cylinder bore, a piston arranged to reciprocate in the cylinder bore, and a connecting rod connecting the piston with the crankshaft;an exhaust arrangement for outflow of exhaust gas from the cylinder bore wherein the exhaust arrangement comprises an exhaust valve and an exhaust opening, the exhaust valve comprising an exhaust valve head configured to seal against an exhaust valve seat of the exhaust opening;an intake arrangement for intake of fresh gas into the cylinder bore, wherein the piston performs four strokes in the cylinder bore, corresponding to an intake stroke, a compression stroke, a power stroke, and an exhaust stroke,wherein the intake arrangement comprises an intake valve and an intake opening, the intake valve comprising an intake valve head configured to seal against an intake valve seat of the intake opening; a first lobe configured to cause a motion of the exhaust valve head for opening and closing the exhaust opening; and', 'a second lobe configured to cause a motion of the intake valve head for opening and closing the intake opening', 'wherein the at least one camshaft is synchronized with the crankshaft to rotate at a same rotational speed as the crankshaft,, 'at last one camshaft comprisingwherein ...

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Номер записи: 48
22-02-2018 дата публикации

METHOD AND APPARATUS FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE

Номер: US20180051622A1
Автор: HE Yongsheng, LIU Jim
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An internal combustion engine is described, and includes a method for operating that includes determining an observed carbon monoxide (CO) ratio in an exhaust gas feedstream, determining an observed in-cylinder scavenging based upon the observed CO ratio in the exhaust gas feedstream, and controlling, by a controller, control states for the variable cam phasing system to control opening times of engine intake valves in relation to closing times of engine exhaust valves based upon the observed in-cylinder scavenging. 1. A method for operating an internal combustion engine including a variable cam phasing system , the method comprising:determining an observed carbon monoxide (CO) ratio in an exhaust gas feedstream;determining an observed in-cylinder scavenging ratio based upon the magnitude of CO in the exhaust gas feedstream; andcontrolling, by a controller, control states for the variable cam phasing system to control opening times of engine intake valves in relation to closing times of engine exhaust valves based upon the observed in-cylinder scavenging ratio.2. The method of claim 1 , wherein determining the magnitude of CO in the exhaust gas feedstream comprises determining an amount of CO in the exhaust gas feedstream as a percent of the exhaust gas feedstream.3. The method of claim 1 , wherein determining a magnitude of CO in an exhaust gas feedstream comprises determining a magnitude of CO in an exhaust gas feedstream employing one of an exhaust gas sensor and a virtual sensor.4. The method of claim 1 , wherein determining an observed in-cylinder scavenging ratio based upon the observed CO in the exhaust gas feedstream comprises:determining an in-cylinder lambda based upon the magnitude of CO in the exhaust gas feedstream;determining an in-cylinder trapped air mass and a scavenging air mass based upon the in-cylinder lambda; anddetermining the observed scavenging ratio based upon the scavenging air mass.5. The method of claim 4 , wherein determining the in- ...

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Номер записи: 49
10-03-2022 дата публикации

VARIABLE VALVE DRIVING MECHANISM OF ENGINE, AND ENGINE

Номер: US20220074320A1
Автор: REN Zhongsheng, WANG Baojun, WANG FEI, Wang Gang, Xu Cheng, XU Deshi
Принадлежит:

A variable valve driving mechanism of an engine, and the engine. The variable valve driving mechanism comprises a rocker arm () configured to control open and close of a valve () and a servo rocker arm () arranged in parallel to the rocker arm (). A swing end of the servo rocker arm () extends to the top of the swing end of the rocker arm (). A valve adjustment gap (-) provided in the swing direction of the servo rocker arm () and the rocker arm () is formed between the servo rocker arm () and the rocker arm (). A gap compensating device telescopically filling the valve adjustment gap (-) and configured to adjust the valve () to be delayed to close or open in advance when extending to the valve adjustment gap (-) is provided between the servo rocker arm () and the rocker arm (). When the valve () is open or closed normally, the gap compensating device is contracted, and the rocker arm () is not in contact with the servo rocker arm () in the swing process by means of the valve adjustment gap (-). When it is required to control the valve () to be delayed to close or open in advance, the gap compensating device extends into the valve adjustment gap (-) to eliminate the gap, and the open/close time of the valve () is adjusted to avoid the problem that the valve is not properly closed caused by a plurality of oil control paths. 1. An engine variable valve driving mechanism , comprising:a rocker arm configured to control opening or closing of a valve, anda servo rocker arm arranged in parallel to the rocker arm,wherein a swing end of the servo rocker arm extends to a top of a swing end of the rocker arm, and a valve adjustment gap is present between the servo rocker arm and the rocker arm in a swing direction of the servo rocker arm and the rocker arm;a gap compensating device for telescopically filling the valve adjustment gap and adjusting the valve to be delayed to close or open in advance when the gap compensating device extending into the valve adjustment gap is ...

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Номер записи: 50
10-03-2022 дата публикации

OIL COOLING FOR ELECTROMAGNETIC LATCH HOUSED IN ROCKER ARM

Номер: US20220074322A1
Автор: STRETCH Dale Arden
Принадлежит:

A valvetrain includes a rocker arm assembly basing a rocker arm and an electromagnetic latch assembly. An electromagnet of the latch assembly is housed within a chamber formed by the rocker arm. Passageways suitable for oil cooling of the electromagnet are formed through and inside the rocker arm. In some embodiments, oil for cooling is supplied through a pivot. In some embodiments, oil for cooling is obtained from oil splash. Oil cooling may allow modes of operation such as of dynamic cylinder deactivation and dynamic variable valve actuation to be used without overheating the electromagnet. 115-. (canceled)16. A valvetrain for an internal combustion engine of a type that has a combustion chamber , a moveable valve having a seat formed in the combustion chamber , and a camshaft , comprising:a rocker arm assembly comprising a rocker arm that forms a chamber having edges and a cam follower configured to engage a cam mounted on a camshaft as the camshaft rotates;a housing inside the chamber;an electromagnetic latch assembly comprising an electromagnet inside the housing and a latch pin translatable between a first position and a second position; andoil passages in a space between the housing and the edges of the chamber.17. The valvetrain of claim 16 , wherein the oil passages are formed by channels in either an inward facing surface of the chamber or an outward facing surface of the housing.18. The valvetrain of claim 16 , wherein the chamber is a retrofit hydraulic chamber.19. The valvetrain of claim 16 , wherein the oil passages communicate with an opening onto a surface of the rocker arm that has a gothic profile.20. The valvetrain of claim 16 , further comprising:a pivot that provides a fulcrum for the rocker arm assembly;wherein the oil passages communicate with an opening on a surface of the rocker arm that interfaces with the pivot.21. The valvetrain of claim 20 , wherein oil flow from the pivot the space between the housing and the edges of the chamber ...

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Номер записи: 51
21-02-2019 дата публикации

ELECTROHYDRAULIC VALVE AND METHOD FOR PRODUCING THE ELECTROHYDRAULIC VALVE

Номер: US20190055859A1
Автор: Goll Juergen, Nickel Sebastian, Selke Andre
Принадлежит:

An electro hydraulic valve for a cam phaser, including an electromagnetic actuator assembly, and a hydraulic assembly, wherein the electromagnetic actuator assembly and the hydraulic assembly are arranged axially aligned along a longitudinal axis, wherein the hydraulic assembly includes a valve housing in which a valve piston is arranged axially movable along the longitudinal axis, wherein a plunger for positioning the valve piston along the longitudinal axis is arranged within the electromagnetic actuator assembly, and wherein the electromagnetic actuator assembly and the hydraulic assembly are connected with one another indirectly or directly, wherein the electromagnetic actuator assembly includes an actuator housing and a friction or form locking connection of the electromagnetic actuator assembly with the hydraulic assembly is provided by an ultrasonic weld between the actuator housing and the valve housing. 1. An electro hydraulic valve for a cam phaser , the electrohydraulic valve comprising:an electromagnetic actuator assembly, anda hydraulic assembly,wherein the electromagnetic actuator assembly and the hydraulic assembly are arranged axially aligned along a longitudinal axis,wherein the hydraulic assembly includes a valve housing in which a valve piston is arranged axially movable along the longitudinal axis,wherein a plunger for positioning the valve piston along the longitudinal axis is arranged within the electromagnetic actuator assembly, andwherein the electromagnetic actuator assembly and the hydraulic assembly are connected with one another indirectly or directly,wherein the electromagnetic actuator assembly includes an actuator housing and a friction or form locking connection of the electromagnetic actuator assembly with the hydraulic assembly is provided by an ultrasonic weld between the actuator housing and the valve housing.2. The electro hydraulic valve according to claim 1 , wherein the actuator housing of the electromagnetic actuator assembly ...

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Номер записи: 52
21-02-2019 дата публикации

DEVICE FOR CONTROLLING AT LEAST ONE VALVE IN AN INTERNAL COMBUSTION ENGINE

Номер: US20190055861A1
Автор: Persson Per
Принадлежит: VOLVO TRUCK CORPORATION

A gas valve actuation device for an internal combustion engine includes a first arrangement for actuating two gas valves in a first lift event, a second arrangement for selectively actuating a first one of the two gas valves in a second lift event, a fluid circuit for controlling actuation of the first gas valve in the second lift event, wherein the fluid circuit includes a first fluid circuit valve which is arranged to be controlled by the first actuation arrangement. 1. A gas valve actuation device for an internal combustion engine , wherein the device comprisesfirst means for actuating two gas valves in a first lift event,second means for selectively actuating a first one of the two gas valves in a second lift event,a fluid circuit for controlling actuation of the first gas valve in the second lift event,wherein the fluid circuit comprises a first fluid circuit valve, which is arranged to be controlled by the first actuation means,wherein the first fluid circuit valve is arranged to be open when the two gas valves are not actuated for the first lift event and closed when the two gas valves are actuated for the first lift event, for creating conditions for achieving an exact positioning of the second actuation means an engaged state thereof.2. A device according to claim 1 , wherein the second actuation means comprises the fluid circuit.3. A device according to claim 1 , wherein the first actuation means comprises a first rocker arm for actuating the two gas valves in the first lift event claim 1 , and the second actuation means comprises a second rocker arm for actuating the first one of the two gas valves in the second lift event.4. A device according to claim 3 , wherein the first fluid circuit valve comprises a moveably arranged control member claim 3 , which is arranged in such a way in relation to the first rocker arm that it may be moved by a movement of the first rocker arm for opening and claim 3 , closing the valve.5. A device according to claim 4 , ...

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Номер записи: 53
03-03-2016 дата публикации

CONTROLLER FOR VARIABLE VALVE MECHANISM

Номер: US20160061118A1
Автор: Hioka Eiichi
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

An internal combustion engine includes a plurality of cylinders, intake valves () provided respectively in the cylinders, and a variable valve mechanism () for changing a valve characteristic of the intake valves (). A motor () drives the variable valve mechanism (). A motor controller () controls the motor (). The internal combustion engine can be operated in a cylinder deactivation mode for retaining the intake valves () of some of the cylinders in a valve closing state. When the internal combustion engine returns from the cylinder deactivation mode, the motor controller () executes overlap adjustment processing for controlling the valve characteristic such that valve opening periods of the intake valves () are not overlapped between the cylinders. 1. A controller for a variable valve mechanism applied to an internal combustion engine including a plurality of cylinders , intake valves provided respectively in the cylinders , and a variable valve mechanism for changing a valve characteristic of the intake valves , wherein the internal combustion engine is capable of switching an operation mode between a cylinder deactivation mode for retaining the intake valves of some of the cylinders in a valve closing state and an all-cylinder operation mode for performing opening and closing actions of the intake valves of all the cylinders , the controller comprising:a control section for controlling the valve characteristic, whereinthe control section is capable of setting, as the valve characteristic at the time of executing the all-cylinder operation mode, a valve characteristic with which an overlap is generated in valve opening periods of the intake valves between the cylinders, andwhen the internal combustion engine returns from the cylinder deactivation mode, the control section is configured to execute overlap adjustment processing for controlling the valve characteristic such that an overlap amount in the valve opening periods of the intake valves between the ...

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Номер записи: 54
01-03-2018 дата публикации

OVERHEAD VALVE ACTUATION MECHANISM FOR ENGINE

Номер: US20180058268A1
Автор: ARASE Kunio, TANAKA Koichi
Принадлежит: SUZUKI MOTOR CORPORATION

A rocker arm includes a pivot portion that is journaled by a rocker arm shaft, a contact portion that projects from the pivot portion to a side of a valve cam, and a pressing portion that projects from the pivot portion to a side of a valve. While including a slipper projecting from the pivot portion in outer side in an axial direction to a side of a camshaft, an overhead valve actuation mechanism for the engine includes a stopper portion with which the slipper comes in contact when the rocker arm swings and reaches a predetermined position at a position opposing the slipper. 1. An overhead valve actuation mechanism for an engine , comprising:a cylinder head;a camshaft rotatably supported by the cylinder head, the camshaft including one or a plurality of valve cams, the camshaft operating opening and closing of an air intake side or air exhaust side valve via the valve cam;a rocker arm swung by the valve cam of the camshaft, the rocker arm acting on the valve to open and close the valve; anda rocker arm shaft supported by the cylinder head, the rocker arm shaft swingably supporting the rocker arm, wherein a pivot portion that is journaled by the rocker arm shaft and serves as a swing center;', 'a contact portion that receives a pressure from the valve cam;', 'a pressing portion that projects to a side of the valve to press the valve in swinging; and', 'a slipper formed to project outward from the rocker arm, and, 'the rocker arm includesthe overhead valve actuation mechanism for the engine includes a stopper portion with which the slipper comes in contact when the rocker arm swings and reaches a predetermined position at a position opposing the slipper.2. The overhead valve actuation mechanism for the engine according to claim 1 , wherein the stopper portion is formed so as to come in contact with the slipper when the rocker arm is at a swing position exceeding a maximum swing position that corresponds to a top portion of the valve cam.3. The overhead valve ...

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Номер записи: 55
04-03-2021 дата публикации

METHOD OF SETTING TAPPET CLEARANCE AND DEVICE THEREFOR

Номер: US20210062684A1
Автор: TANUMA Naoya
Принадлежит:

Even in the case where, due to distortion (undulation) or the like of an end surface of an adjusting screw abutting on a valve stem end, there exists a non-linear undulation movement amount in a movement amount of the end surface with respect to a rotation return angle of the adjusting screw, the undulation movement amount is continuously measured, and a screw return movement amount based on a screw pitch and on the rotation return angle is continuously calculated, and, when a total movement amount of the undulation movement amount and the screw return movement amount has attained a prescribed clearance, return rotation is ended. 1. A method of setting tappet clearance by which a tappet clearance between an end surface of an adjusting screw screwed into an acting end of a rocker arm , and a valve stem end , is set to a prescribed clearance , the method comprising:a step of starting return rotation of the adjusting screw from a position where the end surface of the adjusting screw is abutting on the valve stem end due to weight of the rocker arm on an acting end side, and a pressing torque on the valve stem end has a zero value, the return rotation being started in a state where the abutting is being continued;a step of, when rotation is being returned in the state where the abutting is being continued, continuously measuring, as an undulation movement amount, movement of the end surface of the adjusting screw in both directions in an axial direction of the adjusting screw due to undulation, and continuously calculating, as a screw return movement amount, movement based on a screw pitch in a return direction in the axial direction of the adjusting screw and on a rotation return angle; anda step of ending the return rotation of the adjusting screw when a total movement amount of the undulation movement amount and the screw return movement amount that have been continuously acquired has attained the prescribed clearance.2. The method of setting tappet clearance ...

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Номер записи: 56
22-05-2014 дата публикации

ELECTROMAGNETIC ACTUATING DEVICE AND CAMSHAFT ADJUSTER

Номер: US20140137820A1
Автор: Golz Thomas
Принадлежит: ETO MAGNETIC GMBH

The invention relates to an electromagnetic actuating device () for a camshaft adjustment device of an internal combustion engine of a motor vehicle, with an elongated actuating element () forming an engagement region on the end side and movable by the force of a coil device () provided in a stationary manner, which actuating element preferably has in parts a cylindrical covering contour and penetrates a cut-out () in permanent magnet means () arranged on the shell side, which are constructed for cooperating with a stationary core region () comprising a core body (), and which actuating element lies in a switching position with a contact surface (), on the end side on the actuating element side, against a contact surface () on the core region side. Provision is made that the contact surface () on the core region side is formed at least in part by a contact element () fixed in the core body (), which contact element is constructed from a material which has a greater hardness than the material of the core body (). 11229865151011. An electromagnetic actuating device () for a camshaft adjustment device of an internal combustion engine of a motor vehicle , with comprising an elongated actuating element () forming an engagement region on an end side and movable by force of a coil device () provided in a stationary manner , which actuating element has in parts a cylindrical covering contour and penetrates a cut-out () in permanent magnet means () arranged on a shell side , which are constructed for cooperating with a stationary core region () comprising a core body () , and which actuating element lies in a switching position with a contact surface () , on the end side on an actuating element side , against a contact surface () on a core region side , wherein{'b': 11', '16', '15', '15, 'the contact surface () on the core region side is formed at least in part by a contact element () fixed in the core body (), which contact element is constructed from a material which has a ...

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Номер записи: 57
22-05-2014 дата публикации

VALVE ACTUATION MECHANISM AND AUTOMOTIVE VEHICLE COMPRISING SUCH A VALVE ACTUATION MECHANISM

Номер: US20140137838A1
Автор: Girard Benjamin, Le Forestier Romain
Принадлежит: Renault Trucks

A valve actuation mechanism for an internal combustion engine includes rockers moved by a camshaft, each rocker being adapted to exert a valve opening force on at least a portion of a valve opening actuator of each cylinder, via an activation piston, housed in a bore of the rocker and movable with respect to the rocker under action of a fluid pressure raise in a chamber fluidly connected to the bore, from a first position to a second position with respect to the rocker, in which a cam follower of the rocker is adapted to read at least one auxiliary valve lift sector of a cam of the camshaft so as to perform an engine operating function. Each rocker includes a check valve adapted to control the fluid pressure raise in the chamber. The valve actuation mechanism includes, for each rocker, a stopper fast with a housing of the engine and adapted to exert, on a member of the rocker, a force for opening a valve independent from the check valve, adapted to release fluid from the chamber when the piston has to be moved from its second position to its first position. 193. A valve actuation mechanism for an internal combustion engine on an automotive vehicle , comprising rockers moved by a camshaft , each rocker being adapted to exert a valve opening force on at least a portion of a valve opening actuator of each cylinder , via an activation piston , housed in a bore of the rocker and movable with respect to the rocker under action of a fluid pressure raise in a chamber fluidly connected to the bore , from a first position to a second position with respect to the rocker , in which a cam follower () of the rocker is adapted to read at least one auxiliary valve lift sector of a can of the camshaft so as to perform an engine operating function , each rocker comprising a check valve adapted to control the fluid pressure raise in said chamber , wherein the valve actuation mechanism comprises , for each rocker , a stopper fast with a housing of the engine and adapted to exert , on a ...

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Номер записи: 58
17-03-2022 дата публикации

Assembling and disassembling a mechanical seal

Номер: US20220080539A1
Автор: Darwin G. Gozun, Raed Al-Hadlaq
Принадлежит: Saudi Arabian Oil Co

A mechanical seal clamping assembly includes a base, a fulcrum, a lever, and a cap. The base supports a mechanical seal. The lever is pivotally coupled to the fulcrum at a first pivot spaced from the base. The cap is coupled to the lever and is movable by the lever with respect to the base. The cap is movable from a first position to a second position. In the first position, the cap is at a first distance away from the base. In the second position, the cap is at a second distance away from the base larger than the first distance. The lever moves the cap from the second position toward the first position to engage the mechanical seal to clamp, between the cap and the base, the mechanical seal to maintain a spring of the mechanical seal compressed during assembly or disassembly of the mechanical seal.

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Номер записи: 59
10-03-2016 дата публикации

Method of remanufacturing a rocker arm and remanufactured rocker arm

Номер: US20160069222A1
Автор: Curtis J. Graham, Donald G. Clark, Jonathan R. Eggemeyer, Taylor Young
Принадлежит: Caterpillar Inc

A method of remanufacturing a rocker arm having a body defining a socket portion is disclosed. The method includes machining the socket portion to remove a worn surface and form a seat configured to receive an insert member therein. The method further includes disposing the insert member within the seat and coupling the insert member to the seat.

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Номер записи: 60
17-03-2016 дата публикации

VALVE TIMING CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE

Номер: US20160076410A1
Автор: IWASE Yosuke, KAJIURA Mikihiro
Принадлежит: Hitachi Automotive Systems, Ltd.

A valve timing control apparatus for an internal combustion engine includes: a power feeding brush including a tip end portion arranged to be slidably abutted on the slip ring; and a rotation angle sensing mechanism provided between one end portion of the motor output shaft, and the cover member confronting the one end portion of the motor output shaft, and arranged to sense a rotation angle of the motor output shaft, the power feeding brush being disposed in a range in which the power feeding brush is slid on the slip ring, in a range from a position which is deviated a predetermined angle in a rotation direction of the motor housing from an uppermost position of the other of the electric motor and the cover member in a vertical direction, to a lowermost position. 1. A valve timing control apparatus for an internal combustion engine comprising:a first member to which a rotational force is transmitted from a crank shaft;a second member which is arranged to be rotated relative to the first member, and to rotate as a unit with a cam shaft;an electric motor which includes a motor housing that is provided to the first member to rotate as a unit with the first member, and a motor output shaft, and which is arranged to rotate the second member relative to the first member by the motor output shaft;a cover member which is disposed on an outer end surface of the electric motor to confront the outer end surface of the electric motor in an axial direction;a slip ring which has an annular shape, which is provided to one of the electric motor and the cover member, and which is provided coaxially with the motor output shaft;a power feeding brush which is provided to the other of the electric motor and the cover member, and which includes a tip end portion arranged to be slidably abutted on the slip ring; anda rotation angle sensing mechanism which is provided between one end portion of the motor output shaft, and the cover member confronting the one end portion of the motor ...

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Номер записи: 61
15-03-2018 дата публикации

ENGINE CONTROLLER AND ENGINE CONTROL METHOD

Номер: US20180073445A1
Автор: Imaoka Yoshihiro, INOUE Takao, TSUYUKI Takeshi
Принадлежит: NISSAN MOTOR CO., LTD.

An engine controller controls a direct fuel-injection engine including a fuel injection valve for directly injecting a fuel into a cylinder and a valve overlap period adjusting mechanism for adjusting a valve overlap period between an open period of an intake valve and an open period of an exhaust valve. The engine controller is provided with an acceleration request sensor for detecting an acceleration request of a driver, and when the acceleration request occurs and a top surface temperature of a piston in the cylinder is lower than a predetermined temperature, the engine controller extends the valve overlap period between the open period of the intake valve and the open period of the exhaust valve, ranging before and after an exhaust top dead center. 1. An engine controller that controls a direct fuel-injection engine includinga fuel injection valve arranged to directly inject a fuel into a cylinder, anda valve overlap period adjusting mechanism configured to adjust a valve overlap period between an open period of an intake valve and an open period of an exhaust valve, the engine controller comprising:an acceleration request sensor configured to detect an acceleration request of a driver, whereinwhen the acceleration request occurs and a top surface temperature of a piston in the cylinder obtained on the basis of a detection value of a cooling water temperature sensor is a temperature at which a liquid fuel adhering to a top surface of the piston is brought over in a liquid state to the subsequent cycle, the valve overlap period between the open period of the intake valve and the open period of the exhaust valve, which overlap period ranges before and after an exhaust top dead center, is extended.2. The engine controller according to claim 1 , whereinthe liquid fuel amount remaining on the piston top surface is estimated on the basis of the piston top surface temperature; andthe larger the liquid fuel amount remaining on the piston top surface is, the longer the ...

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Номер записи: 62
07-03-2019 дата публикации

ACTUATION APPARATUS FOR VARIABLE VALVE DRIVE

Номер: US20190072011A1
Автор: Cecur Majo, TOMISKA Lubos
Принадлежит:

An actuator for actuating valve-lift modes of a valve train assembly of an internal combustion engine, The valve train assembly is capable of being switched between a first valve-lift mode and a second valve-lift mode. The actuator includes a first body and a second body, The second body is mounted for reciprocal movement with respect to the first body between a first position to cause the first valve-lift mode and a second position to cause the second valve-lift mode. The actuator includes a third body supported by the second body, the third body for moving a first component of the valve train assembly to cause the second valve-lift mode, The third body is moveable relative to the second body. The actuator includes a first biaser for biasing the third body away from the second body towards the first component of the valve train assembly. 1. An actuator for actuating vale-lift modes of a valve train assembly of an internal combustion engine , the valve train assembly capable of being switched between a first valve-lift mode and a second valve-lift mode , the actuator comprising:a first body;a second body mounted for reciprocal movement with respect to the first body between a first position to cause the first valve-lift mode and a second position to cause the second valve-lift mode;a third body supported by the second body, the third body for moving a first component of the valve train assembly to cause the second valve-lift mode, wherein the third body is moveable relative to the second body; anda first biase for biasing the third body away from the second body towards the first component of the valve train assembly.2. The actuator according to claim 1 , wherein the actuator is configured such that in use claim 1 , the first position is away from the first component of the valve train assembly relative to the second position.3. The actuator according to claim 1 , wherein the third body is moveable between a third position and a fourth position relative to the ...

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Номер записи: 63
18-03-2021 дата публикации

LATCH PIN FOR USE IN VALVE LIFTER AND VALVE LIFTER

Номер: US20210079817A1
Автор: Cornett Douglas R., Jensen Jason M., Vance Matthew A.
Принадлежит:

Shown is a latch pin for use in a valve lifter and a valve lifter including the same. The latch pin for selectively latching within a pin chamber provided in the valve lifter is configured as a whole as a cylindrical pin with one end in the shape of a spherical crown, wherein a stepped flat is formed on radially one side of said one end and is dimensioned to be received within the pin chamber to engage with an axial latching surface thereof. On the top side of said one end, a first relief is formed by beveling the spherical crown, and on the radially other side opposite to the stepped flat across said first relief, a second relief is formed by beveling the spherical crown, wherein the second relief radially adjoins the first relief and circumferentially adjoins a remaining pin face in the shape of the spherical crown. 1. A latch pin for use in a valve lifter and for selectively latching within a pin chamber provided in the valve lifter ,the latch pin as a whole is configured as a cylindrical pin with one end in the shape of a spherical crown, wherein a stepped flat is formed on radially one side of said one end and is dimensioned to be received within the pin chamber to engage with an axial latching surface thereof,characterized in that,on the top side of said one end, a first relief is formed by beveling the spherical crown, andon the radially other side opposite to the stepped flat across said first relief, a second relief is formed by beveling the spherical crown, wherein the second relief radially adjoins the first relief and circumferentially adjoins a remaining pin face in the shape of the spherical crown.2. The latch pin of claim 1 , wherein one or both of the first relief and the second relief is a flat surface.3. A valve lifter claim 1 , comprising:a cylindrical hollow lifter body;{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a latch pin according to ; and'}a pin housing arranged inside said lifter body and configured to receive the latch pin,said ...

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Номер записи: 64
12-06-2014 дата публикации

BEARING ARRANGEMENT

Номер: US20140158077A1
Автор: Brodbeck Luke, Carter Jeff, Schneider Falk
Принадлежит: MAHLE International GmbH

A bearing arrangement may include at least one sliding bearing having a polymer coating. The bearing arrangement may bear a camshaft, and at least one of the polymer coating is applied to the camshaft, and the polymer coating is arranged in a bearing ring. An oil trough for collecting oil may be provided on at least one of the bearing ring and a cylinder head which receives the bearing ring. 2. The bearing arrangement according to claim 1 , wherein an oil supply channel is arranged in the cylinder head claim 1 , the channel opening out at a bearing point claim 1 , wherein the bearing point is in sliding contact with the polymer coating applied to the camshaft.3. The bearing arrangement according to claim 1 , wherein the bearing ring has at least one positioning element on its side facing the cylinder head claim 1 , the at least one positioning element engages in a recess formed in the cylinder head thereby positioning the bearing ring relative to the cylinder head.4. The bearing arrangement according to claim 1 , wherein the bearing ring is formed as a sheet metal part.5. The bearing arrangement according to of claim 1 , wherein the polymer coating has at least one of a film-forming and oil-conveying structure.6. The bearing arrangement according to claim 1 , wherein the polymer coating contains at least one of polyimide claim 1 , acrylate claim 1 , polytetrafluoroethylene (PTFE) and epoxy resin.7. The bearing arrangement according to claim 6 , wherein the polymer coating contains at least one of metallic particles and polytetrafluoroethylene particles in a concentration of 1-15% by volume.8. The bearing arrangement according to claim 1 , wherein the camshaft has a raised bearing region in which the at least one sliding bearing with the polymer coating runs.9. (canceled)10. The bearing arrangement according to claim 8 , wherein the raised bearing region comprises an enlarged diameter of the camshaft.11. The bearing arrangement according to claim 3 , wherein at least ...

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Номер записи: 65
14-03-2019 дата публикации

Oil Separator for Separating Oil from Aerosol in a Combustion Engine

Номер: US20190078475A1
Автор: Tobias Rau
Принадлежит: Bayerische Motoren Werke AG

An oil separator separates oil from aerosol in a combustion engine. The oil separator includes a housing having an inlet opening for the aerosol, an impeller which can be rotatably driven about a rotational axis, and which is adapted for generating an aerosol flow along an axial direction of the impeller and arranged in the housing, and an impact wall which is designed in such a way that a projection of the impeller oriented axially and downstream in the air flow impinges on the impact wall. At least one part of a projection of the impeller oriented axially and downstream in the air flow impinges on the inlet opening.

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Номер записи: 66
23-03-2017 дата публикации

Bucket tappet and method for producing same

Номер: US20170081985A1
Автор: Günter EISENHARDT, Manfred Stratz
Принадлежит: Schaeffler Technologies AG and Co KG

The invention relates to a bucket tappet for an internal combustion engine, having a tappet housing with a hollow cylindrical bucket skirt and a bucket base which closes one side of the bucket skirt and on which the bucket skirt is formed by cold forming a steel blank without cutting. The outside of the bucket base is used as a contact surface for an internal combustion engine cam which transfer a stroke movement to the bucket tappet, and the outside of the bucket skirt is used as a contact surface for an internal combustion engine guide bore which supports the bucket tappet in the stroke direction. The aim of the invention is to develop a bucket tappet of the aforementioned type and a method for producing same with respect to reduced production costs. This is achieved in that the unmachined and uncoated cam contact surface of the bucket base is machined using a brushing tool and no additional mechanical machining of the cam contact surface is carried out.

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Номер записи: 67
31-03-2022 дата публикации

ENGINE VALVE SYSTEM HAVING ROCKER ARM ASSEMBLY WITH ROLLER LOCK FOR SELECTIVE ENGINE VALVE DEACTIVATION

Номер: US20220099004A1
Автор: Tian Ye
Принадлежит: CATERPILLAR INC.

A rocker arm assembly for an engine valve system includes a rocker arm for actuating an engine valve, a stop, a biaser, and a swing lock attached to one of the valve end or the cam end of the rocker arm and defining a pivot axis, and including an actuating surface. The actuating surface is rotatable between a stopped orientation and an idled orientation, and the biaser biases the swing lock towards the stopped orientation where the swing lock contacts the stop and traps the swing lock between the rocker arm and one of an engine valve or a cam. The swing lock is movable in opposition to a bias of the biaser toward the idled orientation to deactivate the engine valve. 1. A rocker arm assembly for an engine valve system comprising:a rocker arm for actuating an engine valve and including a valve end, a cam end, and a shaft bore defining a bore center axis and formed between the valve end and the cam end to receive a rocker shaft supporting the rocker arm for reciprocation;a stop;a swing lock attached to one of the valve end or the cam end of the rocker arm, and including a holder defining a pivot axis oriented parallel to the bore center axis, and an actuating surface;a biaser;the actuating surface is supported by the holder at a location spaced from the pivot axis and rotatable with the holder between a stopped orientation about the pivot axis and an idled orientation about the pivot axis; andthe biaser biases the swing lock toward the stopped orientation, such that the swing lock is in contact with the stop to trap the swing lock between the rocker arm and one of an engine valve or a cam, and the swing lock is movable in opposition to a bias of the biaser toward the idled orientation.2. The assembly of wherein the holder includes a fork and the swing lock includes a roller defining a roller axis and having the actuating surface formed thereon.3. The assembly of wherein:a fixed plane is defined by the bore center axis and the pivot axis and contains each of the bore ...

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Номер записи: 68
25-03-2021 дата публикации

VALVE TIMING ADJUSTMENT DEVICE

Номер: US20210087951A1
Автор: AOCHI Takanobu, Hayashi Tomohiro, MAEGAWA Hitoshi, TADA Kenji, Takahashi Hiroki
Принадлежит:

A valve timing adjustment device includes a drive-side rotating body that rotates in conjunction with a crankshaft, a driven-side rotating body that rotates integrally with a camshaft, a speed reduction mechanism that transmits rotation while allowing relative rotation between the drive-side rotating body and the driven-side rotating body. The driven-side rotating body includes a fastening portion fastened to the end portion of the camshaft by a center bolt, a bearing portion that is located radially outward of the fastening portion and that axially supports the drive-side rotating body, and a fitting outer surface that is fitted to a regulating member on a side where an outer diameter of an axial contact surface with the other member on one side and the other side in the axial direction of the driven-side rotating body is large. 1. A valve timing adjustment device that is provided in a torque transmission path from a crankshaft of an internal combustion engine to a camshaft thereof and adjusts a valve timing of a valve operating to open and close the camshaft , comprising:a drive-side rotating body configured to rotate in conjunction with the crankshaft;a driven-side rotating body configured to rotate integrally with the camshaft;a speed reduction mechanism configured to transmit rotation while allowing relative rotation between the drive-side rotating body and the driven-side rotating body; wherein a fastening portion fastened to an end portion of the camshaft by a bolt,', 'a bearing portion that is located radially outward of the fastening portion and that axially supports the drive-side rotating body, and', 'a fitting outer surface that is fitted to a regulating member on a side where an outer diameter of an axial contact surface with the other member on one side and the other side in the axial direction of the driven-side rotating body is large., 'the driven-side rotating body includes'}2. The valve timing adjustment device according to claim 1 , whereinthe ...

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Номер записи: 69
25-03-2021 дата публикации

ROCKER ARM WITH INBOARD LOST MOTION SPRING OVER VALVE

Номер: US20210087953A1
Автор: Vance Matthew A.
Принадлежит: Eaton Intelligent Power Limited

A rocker arm can comprise a first outer arm and a second outer arm joined by a pivot body. An actuatable latch mechanism is within the pivot body. An inner arm assembly comprises a latch arm. A first spring prop is on the inner arm assembly distal from the latch arm. An axle joins the inner arm assembly to pivot between the first outer arm and the second outer arm. A spring is biased against the first outer arm and against the first spring prop. The first spring prop can comprise a hooked end. Or, the first spring prop can extend laterally out from the rocker arm and parallel to the axle. The spring can comprise a one-piece spring comprising first and second coil springs connected by a lateral connector. Or, two separate torsion springs can comprising tangential spring ends extending at approximately 90 degrees. 125-. (canceled)26. A rocker arm , comprising:a first outer arm and a second outer arm joined by a pivot body on a first end of the rocker arm and comprising a valve seat on a second end of the rocker arm;a latch mechanism configured to actuate from the pivot body;an inner arm assembly between the first outer arm and the second outer arm;an axle mounted on the second end of the rocker arm, the axle forming a pivot location for the inner arm assembly relative to the first outer arm and the second outer arm; anda lost motion spring around the axle, the lost motion spring biased against the inner arm assembly and biased against the second end.27. The rocker arm of claim 26 , further comprising a spring prop within the inner arm assembly claim 26 , wherein the lost motion spring is biased against the spring prop.28. The rocker arm of claim 27 , wherein the spring prop is biased against the valve seat.29. The rocker arm of claim 27 , wherein the inner arm assembly comprises a first inner arm and a second inner arm claim 27 , and wherein the spring prop extends from the first inner arm.30. The rocker arm of claim 27 , wherein the inner arm assembly comprises a ...

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Номер записи: 70
31-03-2016 дата публикации

MODULAR SYSTEM FOR CHECKING A VALVE SEAT AND A VALVE GUIDE IN CYLINDER HEADS OF INTERNAL COMBUSTION ENGINES

Номер: US20160091293A1
Автор: Brambilla Daniele Pasqualino
Принадлежит: Marposs Societá Per Azioni

A modular system () for checking a valve seat and its associated valve guide in cylinder heads of internal combustion engines comprises a guide and support assembly (), movable in three directions, which carries one or more electronic gauges () and a precentering pin () to guide the insertion of the gauge in the valve seat and its associated valve guide, and a tilting table () for loading and locating a cylinder head (). Thanks to the particular structure of a support mechanism () connected to the guide and support assembly, the gauge is able to self-position on the valve seat to be checked and to disengage in a checking condition from the guide and support assembly at least in one of the three directions. The tilting table can be adjusted depending on the dimensions and layout of the cylinder head to be checked and includes a swing system () to set the tilt of the table as a function of the inclination of the valve seat and its associated valve guide to be checked. 1. A modular system for checking a valve seat and a valve guide in cylinder heads of internal combustion engines , the system including:a support frame,one or more electronic gauges with a nosepiece for checking dimensional and geometric features of the valve seat and the valve guide,a guide and support assembly movably coupled to the support frame with three degrees of freedom and carrying one or more electronic gauges, the guide and support assembly being adapted to position said one gauge over the valve seat to be checked, and to bring the gauge to cooperate with the valve seat along a vertical direction,a precentering pin connected to said guide and support assembly adapted to guide the insertion of the gauge in the valve seat and the valve guide by entering a valve seat and a valve guide close to the valve seat and the valve guide to be checked,wherein said guide and support assembly includes resting surfaces and matching surfaces integral with said one gauge which rest on said resting surfaces, in ...

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Номер записи: 71
21-03-2019 дата публикации

APPARATUS AND METHOD FOR CALCULATING INTERNAL EXHAUST GAS RECIRCULATION (EGR) AMOUNT OF ENGINE INCLUDING CONTINUOUSLY VARIABLE VALVE DURATION APPARATUS

Номер: US20190085777A1
Автор: Do Hyung-Soo, Kang Soo-Hyeok, Kim Dae-Woo, Won Min-Kyu
Принадлежит:

A method and apparatus for calculating an internal exhaust gas recirculation (EGR) amount of an engine include a continuously variable valve duration (CVVD) apparatus. The internal EGR amount is calculated by correcting a backflow gas amount based on a valve duration changed by operation of the continuously variable valve duration apparatus during valve overlap of an intake valve or an exhaust valve. 1. A method for calculating an internal exhaust gas recirculation (EGR) amount of an engine including a continuously variable valve duration apparatus (CVVD) , comprising:calculating an internal EGR amount, by an internal EGR amount calculator, based on valve duration changed by operation of the continuously variable valve duration apparatus during valve overlap of an intake valve or an exhaust valve.2. The method of claim 1 , wherein the internal EGR amount is a sum of a residual gas amount in a cylinder of the engine and a backflow gas amount of gas flowing back into the cylinder during valve overlap claim 1 , and the backflow gas amount is a value obtained by correcting a basic backflow gas amount determined based on an exhaust pressure claim 1 , an intake pressure claim 1 , an exhaust gas temperature claim 1 , and valve overlap duration in a valve overlap period based on the valve duration changed by the operation of the continuously variable valve duration apparatus.3. The method of claim 2 , wherein when correcting the basic backflow gas amount claim 2 , the basic backflow gas amount is corrected at a predetermined ratio by using valve profile determined based on a maximum opening point in time (most opening position (MOP)) and a valve closing point in time of the intake valve or the exhaust valve controlled by the continuously variable valve duration apparatus.4. The method of claim 2 , wherein when correcting the basic backflow gas amount claim 2 , the basic backflow gas amount is corrected at a predetermined ratio by using valve profile determined based on a ...

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Номер записи: 72
30-03-2017 дата публикации

CONTROL APPARATUS OF ENGINE

Номер: US20170089282A1
Автор: MIURA Shin, NISHIMURA Kazuhiro, Nishio Takafumi
Принадлежит:

A control apparatus of an engine including intake and exhaust valves and a variable valve timing mechanism for varying open and close timings is provided. The apparatus includes a processor configured to execute an increasing amount controlling module for performing a fuel amount increase control in which a fuel injection amount is increased to decrease an exhaust gas temperature, and a valve controlling module for controlling, via the variable valve timing mechanism, an overlapping period in which the intake and exhaust valves are both opened on intake stroke. When the increasing amount controlling module performs the increase control, based on an increase of a temperature of the exhaust gas in the increase control, the valve controlling module determines whether a protection for an exhaust system component is required, and if the protection is determined to be required, the valve controlling module shortens the overlapping period. 1. A control apparatus of an engine including an intake valve , an exhaust valve , and a variable valve timing mechanism for varying open and close timings of at least one of the intake and exhaust valves , the control apparatus comprising a processor configured to execute:an increasing amount controlling module for performing a fuel amount increase control in which an injection amount of fuel is increased so as to decrease a temperature of exhaust gas; anda valve controlling module for controlling, via the variable valve timing mechanism, an overlapping period in which the intake and exhaust valves are both opened on intake stroke of the engine,wherein when the increasing amount controlling module performs the fuel amount increase control, based on a temperature increase of the exhaust gas estimated to occur due to the fuel amount increase control, the valve controlling module determines whether a protection for a component of an exhaust system of the engine is required, and if the protection for the component of the exhaust system is ...

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Номер записи: 73
19-03-2020 дата публикации

AFTERTREATMENT TEMPERATURE MANAGEMENT VIA BOOT-SHAPED VALVE LIFT PROFILES

Номер: US20200088116A1
Автор: JR. James E., McCarthy, Vance Matthew A.
Принадлежит: Eaton Intelligent Power Limited

A method for advancing valve actuation during low load or idle diesel engine conditions to promote aftertreatment heat up comprises switching a cam phaser from a nominal lift position to an advance lift position to open an affiliated valve before nominal. Valve lift is actuated via the cam phaser. The valve is lowered towards nominal closure, and valve closure is interrupted by actuating a latch phaser. Valve closure is extended beyond nominal valve closure. 125-. (canceled)26. A method for advancing valve actuation during low load or idle diesel engine conditions to promote aftertreatment heat up , comprising:switching a cam phaser from a nominal lift position to an advance lift position to open an affiliated valve before nominal;actuating valve lift via the cam phaser;lowering the valve towards nominal closure;interrupting valve closure by actuating a latch phaser; andextending valve closure beyond nominal valve closure.27. A method for exhaust thermal management on a cylinder of a diesel combustion engine , comprising:implementing late exhaust valve closing on a first exhaust valve of a pair of exhaust valves;implementing one of a normal exhaust valve closing and an early exhaust valve opening on a second exhaust valve of the pair of exhaust valves;opening an intake valve to provide negative valve overlap with the late exhaust valve closing of the first exhaust valve, where both the intake valve and the first exhaust valve are open at the same time;implementing internal exhaust gas recirculation via the negative valve overlap; andincreasing the exhaust temperature of an affiliated exhaust stream via the internal exhaust gas recirculation.28. The method of claim 27 , comprising: implementing the late exhaust valve closing via cam phasing.29. The method of claim 27 , comprising lifting the first exhaust valve at the late exhaust valve closing a lower lift than the second exhaust valve of the pair of exhaust valves.30. The method of claim 27 , comprising switching ...

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Номер записи: 74
05-04-2018 дата публикации

Internal combustion engine

Номер: US20180094592A1
Автор: Hirotaka Kawatsu, Hiroyuki Natsui, Kenji Nishida, Masaki Cho, Ryota Takahashi, Tomiyuki Sasaki
Принадлежит: Honda Motor Co Ltd

An internal combustion engine is configured to satisfy the relation expressed by 0<Rv<0.000438×θ 2 −0.0407×0+1.55 in a range of an intake valve overlap amount θ(°) from 20° to 45°, where Rv denotes an intake port volume ratio obtained by dividing an intake port internal volume Vp by a cylinder stroke volume Vc, and the intake valve overlap amount θ(°) is a crank angle from an intake valve opening timing when the intake valve starts opening to an intake top dead center of the piston. The engine improves output performance as well as both combustion performance and emission performance by suppressing reverse flow of the combustion gas into the intake system.

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Номер записи: 75
16-04-2015 дата публикации

BUTTON FOR ROCKER ARM ASSEMBLY

Номер: US20150101559A1
Автор: Menssen Andrew J., Rudolph Paul D.
Принадлежит: CATERPILLAR INC.

The present disclosure provides a button for a rocker arm assembly. The button includes a head portion. The button includes a shank extending from the head portion along a longitudinal axis. The button further includes a base portion extending from the shank. The base portion has a bottom surface, wherein the bottom surface has a substantially concave profile. 1. A button for a rocker arm assembly , the button comprising:a head portion;a shank extending from the head portion along a longitudinal axis; anda base portion extending from the shank, the base portion having a bottom surface, wherein the bottom surface has a substantially concave profile.2. The button of claim 1 , wherein an outer diameter of the base portion lies in the range of 5 mm to 100 mm.3. The button of claim 1 , wherein a ratio of a radius of curvature of the concave profile to the outer diameter of the base portion lies in a range of 1:1 to 200:1.4. The button of claim 1 , wherein a ratio of a radius of curvature of the concave profile to the outer diameter of the base portion is 30:1.5. The button of further comprising:at least one fluid channel, wherein the at least one fluid channel extending from the head portion to the base portion substantially along the longitudinal axis of the button;a first opening on a head surface; anda second opening on the bottom surface.6. The button of is made of hardened steel.7. A rocker arm assembly comprising:a rocker arm forming an insert bore;an insert disposed within the insert bore; and a head portion;', 'a shank extending from the head portion along a longitudinal axis; and', 'a base portion extending from the shank, the base portion having a bottom surface, wherein the bottom surface has a substantially concave profile., 'a button attached to the insert, the button including8. The rocker arm assembly of claim 7 , wherein an outer diameter of the base portion of the button lies in the range of 5 mm to 100 mm.9. The rocker arm assembly of claim 7 , wherein ...

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Номер записи: 76
06-04-2017 дата публикации

SYSTEM, METHOD AND TOOLING FOR FLEXIBLE ASSEMBLY OF CYLINDER-HEAD VALVE TRAINS

Номер: US20170095895A1
Автор: Bell Arnold, KEKEDJIAN Harry, MANUSZAK Michael, MARROCCO Alexander, ZOLOTAREV Isaac
Принадлежит:

An assembly method is provided by orienting a cylinder-head at a first orientation. A first plurality of spring caps and a first plurality of retainer keys are installed into the cylinder-head in the first orientation by a first robot. A first plurality of valves is installed into the cylinder-head in the first orientation by a second robot, into engagement with the first plurality of retainer keys. An end effector is provided with an actuator supported upon an adapter plate. A shaft extends from the actuator with a mating surface to engage a spring cap. Porting is provided through the shaft to convey pressurized air upon a plurality of retainer keys within the spring cap. A plurality of gripper fingers extend from the distal end of the shaft to grip a valve spring while retaining a spring cap between the valve spring and the mating surface of the shaft. 19-. (canceled)10. An end effector comprising:an adapter plate;at least one actuator supported upon the adapter plate;at least one shaft extending from the actuator, a mating surface provided on a distal end of the shaft to engage a spring cap, and porting provided through the shaft to a central region of the mating surface to convey pressurized air upon a plurality of retainer keys within the spring cap; anda plurality of gripper fingers extending from the distal end of the shaft to grip a valve spring while retaining the spring cap between the valve spring and the mating surface of the shaft.11. The end effector of wherein the shaft is provided with a central cavity; and a pin oriented in the central cavity of the shaft for limited translation relative to the shaft, and', 'a biasing member cooperating with the shaft and the pin to bias the pin into engagement with the plurality of retainer keys within the spring cap., 'wherein the end effector further comprises12. An assembly method comprising:providing a kitted assembly comprising a valve spring, a spring cap upon the valve spring and a plurality of retainer keys ...

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Номер записи: 77
06-04-2017 дата публикации

ENGINE

Номер: US20170096948A1
Автор: CHO Ja-Yun, KIM Kwang-Soo
Принадлежит: DOOSAN INFRACORE CO., LTD.

An engine having improved volumetric efficiency may include a cylinder, an intake valve, a piston, an exhaust valve and a crankshaft. The cylinder may include a cylinder bore. The intake valve may be configured to introduce a fuel and an air into the cylinder bore. The piston may be slidably arranged in the cylinder bore. The piston may be configured to convert an explosive power of an exhaust gas, which may be generated by combusting the fuel, into a linear driving force. The exhaust valve may be configured to exhaust the exhaust gas from the cylinder bore. The crankshaft may be connected with the piston to convert the linear driving force into a rotary driving force. The intake valve and the exhaust valve may be simultaneously opened within a rotation angle of about 3° to about 12° of the crankshaft. 1. An engine comprising:a cylinder having a cylinder bore;an intake valve configured to introduce an air and a fuel into the cylinder bore;a piston slidably arranged in the cylinder bore to convert an explosive force, which is generated by combusting the fuel, into a linear driving force;an exhaust valve configured to exhaust an exhaust gas from the cylinder bore; anda crankshaft connected with the piston to convert the linear driving force into a rotational driving force,wherein the intake valve and the exhaust valve are simultaneously opened within a rotation angle of about 3° to about 12° of the crankshaft.2. The engine of claim 1 , wherein the intake valve and the exhaust valve are simultaneously opened within the rotation angle of about 3° to about 6° of the crankshaft.3. The engine of claim 1 , wherein the intake valve is opened within the rotation angle of about 1° to about 2° of the crankshaft before a top dead point of the piston.4. The engine of claim 1 , wherein the exhaust valve is closed within the rotation angle of about 2° to about 10° of the crankshaft after a top dead point of the piston.5. The engine of claim 1 , wherein a section after a top dead ...

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Номер записи: 78
12-04-2018 дата публикации

SYSTEM AND METHOD FOR CONTROLLING VALVE TIMING OF CONTINUOUS VARIABLE VALVE DURATION ENGINE

Номер: US20180100444A1
Автор: HA Kyoung Pyo, Kwon Kiyoung, RYU In Sang, SON You Sang
Принадлежит:

A method for controlling intake and exhaust valves of an engine includes: controlling, by an intake continuous variable valve timing (CVVT) device, opening and closing timings of the intake valve; controlling, by an exhaust CVVT device, opening and closing timing of the exhaust valve; determining, by a controller, a target opening duration of the intake valve and target opening or target closing timings of the intake valve based on an engine load and an engine speed; modifying, by an intake continuous variable valve duration (CVVD) device, current opening and closing timings of the intake valve based on the target opening duration; and advancing or retarding, by the intake CVVD device, the current opening timing of the intake valve while simultaneously retarding or advancing the current closing timing of the intake valve by a predetermined value based on the target opening duration of the intake valve. 1. A method for controlling intake and exhaust valves of an engine , the method comprising:controlling, by an intake continuous variable valve timing (CVVT) device, opening and closing timings of the intake valve;controlling, by an exhaust CVVT device, opening and closing timing of the exhaust valve;determining, by a controller, a target opening duration of the intake valve and at least one of a target opening timing or a target closing timing of the intake valve and the exhaust valve, based on an engine load and an engine speed;modifying, by an intake continuous variable valve duration (CVVD) device, current opening and closing timings of the intake valve based on the target opening duration of the intake valve; andadvancing, by the intake CVVD device, the current opening timing of the intake valve while simultaneously retarding the current closing timing of the intake valve by a predetermined value, or retarding the current opening timing of the intake valve while simultaneously advancing the current closing timing of the intake valve by a predetermined value, based ...

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Номер записи: 79
12-04-2018 дата публикации

METHOD FOR CONTROLLING OF VALVE TIMING OF CONTINUOUS VARIABLE VALVE DURATION ENGINE

Номер: US20180100445A1
Автор: HA Kyoung Pyo, Kwon Kiyoung, RYU In Sang, SON You Sang
Принадлежит:

A method for controlling intake and exhaust valves of an engine includes: controlling, by an intake continuous variable valve timing (CVVT) device and an exhaust CVVT device, opening and closing timings of the intake valve and exhaust valves; determining, by a controller, a target opening duration of the intake and exhaust valves based on an engine load and an engine speed; modifying, by an intake continuous variable valve duration (CVVD) device and by an exhaust two-stage variable valve duration device, current opening and closing timings of the intake valve and exhaust valve based on the target opening durations. In particular, the exhaust two-stage VVD device switches a current opening duration of the exhaust valve to a first exhaust opening duration or a second exhaust opening duration which is shorter than the first opening duration based on the target opening duration of the exhaust valve. 1. A method for controlling intake and exhaust valves of an engine , the method comprising:controlling, by an intake continuous variable valve timing (CVVT) device, opening and closing timings of the intake valve;controlling, by an exhaust CVVT device, opening and closing timing of the exhaust valve;determining, by a controller, a target opening duration of the intake valve, a target opening duration of the exhaust valve, and at least one of a target opening timing or a target closing timing of the intake valve and the exhaust valve, based on an engine load and an engine speed;modifying, by an intake continuous variable valve duration (CVVD) device, current opening and closing timings of the intake valve based on the target opening duration of the intake valve;modifying, by an exhaust two-stage variable valve duration (VVD) device, current opening and closing timings of the exhaust valve based on the target opening duration of the exhaust valve;advancing, by the intake CVVD device, the current opening timing of the intake valve while simultaneously retarding the current ...

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Номер записи: 80
12-04-2018 дата публикации

SYSTEM AND METHOD FOR CONTROLLING VALVE TIMING OF CONTINUOUS VARIABLE VALVE DURATION ENGINE

Номер: US20180100446A1
Автор: HA Kyoung Pyo, Kwon Kiyoung, RYU In Sang, SON You Sang
Принадлежит:

A method for controlling intake and exhaust valves of an engine includes: controlling, by an intake continuous variable valve timing (CVVT) device and an exhaust CVVT device, opening and closing timings of the intake valve and exhaust valves; determining, by a controller, a target opening duration of the intake and exhaust valves based on an engine load and an engine speed; modifying, by an intake continuous variable valve duration (CVVD) device and by an exhaust CVVD device, current opening and closing timings of the intake valve and/or exhaust valve based on the target opening duration; and advancing or retarding, by the intake and/or exhaust CVVD devices, the current opening timing of the intake and exhaust valves while simultaneously retarding or advancing the current closing timing of the intake and exhaust valve by a predetermined value based on the target opening duration. 1. A method for controlling intake and exhaust valves of an engine , the method comprising:controlling, by an intake continuous variable valve timing (CVVT) device, opening and closing timings of the intake valve;controlling, by an exhaust CVVT device, opening and closing timing of the exhaust valve;determining, by a controller, a target opening duration of the intake valve, a target opening duration of the exhaust valve, and at least one of a target opening timing or a target closing timing of the intake valve and the exhaust valve, based on an engine load and an engine speed;modifying, by an intake continuous variable valve duration (CVVD) device, current opening and closing timings of the intake valve based on the target opening duration of the intake valve;modifying, by an exhaust CVVD device, current opening and closing timings of the exhaust valve based on the target opening duration of the exhaust valve;advancing, by the intake CVVD device, the current opening timing of the intake valve while simultaneously retarding the current closing timing of the intake valve by a predetermined ...

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Номер записи: 81
12-04-2018 дата публикации

SYSTEM AND METHOD FOR CONTROLLING VALVE TIMING OF CONTINUOUS VARIABLE VALVE DURATION ENGINE

Номер: US20180100447A1
Автор: HA Kyoung Pyo, Kwon Kiyoung, RYU In Sang, SON You Sang
Принадлежит:

A method for controlling intake and exhaust valves of an engine may include: determining, by a controller, a target opening duration of the intake and exhaust valves based on an engine load and an engine speed; modifying, by an intake continuous variable valve duration (CVVD) device and by an exhaust CVVD device, current opening and closing timings of the intake valve and/or exhaust valve based on the target opening duration of the valves; and advancing or retarding, by the intake and/or exhaust CVVD devices, the current opening timing of the intake and exhaust valves while simultaneously retarding or advancing the current closing timing of the intake and exhaust valve by a predetermined value based on the target opening duration. 1. A method for controlling intake and exhaust valves of an engine , the method comprising:determining, by a controller, a target opening duration of the intake valve, a target opening duration of the exhaust valve based on an engine load and an engine speed;modifying, by an intake continuous variable valve duration (CVVD) device, current opening and closing timings of the intake valve based on the target opening duration of the intake valve;modifying, by an exhaust CVVD device, current opening and closing timings of the exhaust valve based on the target opening duration of the exhaust valve;advancing, by the intake CVVD device, the current opening timing of the intake valve while simultaneously retarding the current closing timing of the intake valve by a predetermined value, or retarding the current opening timing of the intake valve while simultaneously advancing the current closing timing of the intake valve by a predetermined value, based on the target opening duration of the intake valve; andadvancing, by the exhaust CVVD device, the current opening timing of the exhaust valve while simultaneously retarding the current closing timing of the exhaust valve by a predetermined value, or retarding the current opening timing of the exhaust ...

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Номер записи: 82
12-04-2018 дата публикации

METHOD FOR CONTROLLING OF VALVE TIMING OF CONTINUOUS VARIABLE VALVE DURATION ENGINE

Номер: US20180100448A1
Автор: HA Kyoung Pyo, Kwon Kiyoung, RYU In Sang, SON You Sang
Принадлежит:

A method for controlling intake and exhaust valves of an engine may include: determining, by a controller, a target opening duration of the intake and exhaust valves according to a control region determined based on an engine load and an engine speed; modifying, by an intake continuous variable valve duration (CVVD) device and by an exhaust CVVD device, opening and closing timings of the intake valve and exhaust valve based on the target opening duration of the valves; and advancing or retarding, by the intake and/or exhaust CVVD devices, the opening timing of the intake and exhaust valves while simultaneously retarding or advancing the closing timing of the intake and exhaust valve by a predetermined value based on the target opening durations. In particular, the controller classifies five control regions based on the engine load and speed. 1. A method for controlling intake and exhaust valves of an engine , the method comprising:determining, by a controller, a target intake opening duration of the intake valve, a target exhaust opening duration of the exhaust valve based on an engine load and an engine speed;modifying, by an intake continuous variable valve duration (CVVD) device, opening and closing timings of the intake valve based on the target intake opening duration of the intake valve;modifying, by an exhaust CVVD device, opening and closing timings of the exhaust valve based on the target exhaust opening duration of the exhaust valve;advancing, by the intake CVVD device, the opening timing of the intake valve while simultaneously retarding the closing timing of the intake valve by a predetermined value, or retarding the opening timing of the intake valve while simultaneously advancing the closing timing of the intake valve by a predetermined value, based on the target intake opening duration of the intake valve; andadvancing, by the exhaust CVVD device, the opening timing of the exhaust valve while simultaneously retarding the closing timing of the exhaust ...

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Номер записи: 83
12-04-2018 дата публикации

METHOD FOR CONTROLLING OF VALVE TIMING OF CONTINUOUS VARIABLE VALVE DURATION ENGINE

Номер: US20180100452A1
Автор: HA Kyoung Pyo, Kwon Kiyoung, RYU In Sang, SON You Sang
Принадлежит:

A method for controlling valve timing for an engine includes: classifying a plurality of control regions depending on an engine speed and an engine load; applying a maximum duration to an intake valve and controlling an exhaust valve to limit a valve overlap in a first region; controlling the intake valve and the exhaust valve to maintain the maximum duration in a second region; advancing an intake valve closing (IVC) timing and an exhaust valve closing (EVC) timing in a third region; approaching the IVC timing to a bottom dead center (BDC) in a fourth region; controlling a throttle valve to be fully opened, advancing an intake valve opening (IVO) timing before a top dead center (TDC), and controlling the IVC timing to be a predetermined value after the BDC in a fifth region; and controlling the throttle valve to be fully opened and advancing the IVC timing in a sixth region. 1. A method for controlling intake and exhaust valves of an engine , the method comprising:controlling, by an intake continuous variable valve timing (CVVT) device, opening and closing timings of the intake valve;determining, by a controller, a target opening duration of the intake valve, a target opening duration of the exhaust valve, and at least one of a target opening timing or a target closing timing of the intake valve and the exhaust valve, based on an engine load and an engine speed;modifying, by an intake continuous variable valve duration (CVVD) device, current opening and closing timings of the intake valve based on the target opening duration of the intake valve;modifying, by an exhaust CVVD device, current opening and closing timings of the exhaust valve based on the target opening duration of the exhaust valve;advancing, by the intake CVVD device, the current opening timing of the intake valve while simultaneously retarding the current closing timing of the intake valve by a predetermined value, or retarding the current opening timing of the intake valve while simultaneously ...

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Номер записи: 84
26-03-2020 дата публикации

Green Compact of a Stator-Cover Unit

Номер: US20200095905A1
Автор: CASELLAS Antonio, Frey Sascha, Schmitt Rainer
Принадлежит:

A green compact of a stator-cover unit for a camshaft adjuster unit, at least comprising 2. The green compact according to claim 1 , wherein the outer circumferential surface of the cover forms a first transition with the web flanks claim 1 , at least on a first side of the cover facing away from the first end-face side-of the stator claim 1 , and forms a second transition with the inner circumferential surface claim 1 , wherein at least the first transition or the second transition has a radius of at most 0.01 millimeter (mm).3. The green compact according to claim 1 , wherein the shared contact surfaces extend parallel to the axial direction.4. The green compact according to claim 1 , wherein the first partial green compact has outwardly pointing external teeth claim 1 , situated in a radial direction outside the stator wall claim 1 , as a chain wheel.5. The green compact according to claim 1 , wherein at least on a first side of the cover facing away from the first end-face side of the stator claim 1 , the cover has at least one depression that is spaced apart from the first transition and the second transition.6. The green compact according to claim 1 , wherein the stator and the cover have different densities.7. The green compact according to claim 1 , wherein the first sinter material and the second sinter material are identical to one another.82. A stator cover unit () comprising a sintered green compact according to claim 1 , wherein the outer circumferential surface of the cover forms a first transition with the web flanks claim 1 , at least on a first side of the cover facing away from the first end-face side of the stator claim 1 , and forms a second transition with the inner circumferential surface claim 1 , wherein at least the first transition or the second transition directly after the sintering has a radius of at most 0.01 millimeter (mm).9. The stator cover unit according to claim 8 , wherein directly after the sintering claim 8 , at least on a ...

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Номер записи: 85
08-04-2021 дата публикации

SOCKET MODULE OF COMPRESSION RELEASE TYPE ENGINE BRAKE AND OPERATING METHOD OF ENGINE BRAKE USING THEREOF

Номер: US20210102482A1
Автор: CHOI Dong Hyuk, JEON Jae Hee
Принадлежит:

A compression release type of engine brake socket module is provided between an exhaust rocker arm rotating with respect to a rocker arm shaft and a valve bridge connecting an exhaust valve of an engine. In particular the socket module incudes: a housing which includes an inlet through which brake oil is introduced, a brake piston mounting portion, and a reset member mounting portion communicating with the brake piston mounting portion; a brake piston that is provided to be movable in the brake piston mounting portion; a stopper disposed on one side of an inner space of the housing to limit a moving position of the brake piston; and a reset member that is provided in the reset member mounting portion, and that discharges the brake oil by selectively contacting a push pin coupled to an upper portion of a cylinder head. 1. A compression-release engine brake socket module provided between an exhaust rocker arm rotating with respect to a rocker arm shaft and a valve bridge connecting an exhaust valve , the compression-release engine brake socket module comprising: an inlet through which brake oil is introduced,', 'a brake piston mounting portion, and', 'a reset member mounting portion configured to communicate with the brake piston mounting portion;, 'a housing includinga brake piston configured to move in the brake piston mounting portion;a stopper disposed on one side of an inner space of the housing and configured to limit a moving position of the brake piston; anda reset member provided in the reset member mounting portion, and configured to discharge the brake oil by selectively contacting a push pin coupled to an upper portion of a cylinder head.2. The compression-release engine brake socket module of claim 1 , further comprisingat least one upper protrusion and a lower protrusion formed on an exterior surface of each of an upper portion and a lower portion of the brake piston so that movement of the brake piston is restricted by the stopper.3. The compression- ...

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Номер записи: 86
21-04-2016 дата публикации

GAS EXCHANGE VALVE ACTUATOR FOR AXIAL DISPLACEMENT OF A GAS EXCHANGE VALVE OF A COMBUSTION ENGINE

Номер: US20160108777A1
Автор: Höglund Anders
Принадлежит:

An actuator for axial displacement of a gas exchange valve of a combustion engine is configured to be connected to a pressure fluid source and a pressure fluid sink, respectively, and to be driven by a gaseous pressure fluid and includes an actuator piston including an actuator piston disc and an actuator piston rod projecting therefrom in the axial direction, a cylinder volume, the disc separating the cylinder volume into a first part and a second part and being displaceable back and forth in the axial direction in the cylinder volume between an inactive position and an active position, the first part being configured for controllable fluid communication with the pressure fluid source and the pressure fluid sink, respectively, and a hydraulic circuit includes a chamber, the free end of the rod being arranged therein, wherein the rod is displaceable back and forth in the axial direction in a channel. 31612. The gas exchange valve actuator according to claim 2 , wherein the inlet valve body () is biased by means of a spring in a direction closing the inlet channel ().4221417. The gas exchange valve actuator according to claim 2 , wherein the ventilation groove () is connected to the outlet channel () downstream the outlet valve body ().51820182118. The gas exchange valve actuator according to claim 2 , wherein the hydraulic circuit comprises said chamber () claim 2 , a check valve () configured to admit a flow of hydraulic liquid to the chamber () and a hydraulic valve () configured to control a flow of hydraulic liquid from the chamber ().621. The gas exchange valve actuator according to claim 5 , wherein the hydraulic valve () comprises a hydraulic valve body that is displaceable back and forth between a closed position and an open position claim 5 , the hydraulic valve body being biased by means of a spring in the direction away from the closed position thereof.716. The gas exchange valve actuator according to claim 6 , wherein the inlet valve body () and the ...

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Номер записи: 87
30-04-2015 дата публикации

Determination of the effective fuel-air ratio of a supercharged internal combustion engine with scavenging air component

Номер: US20150114374A1
Автор: Stefan Horst
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method for the fuel consumption reduction and/or power increase of an internal combustion engine of a motor vehicle is disclosed. A crank angle of a crankshaft is detected at which out of a cylinder the exhaust gases of a cylinder can be representatively measured on a lambda probe. The exhaust gas flow is measured on the lambda probe. A signal of the lambda probe is scanned at the time of the detection of the crank angle. A value indicated the detected angle and/or the scanned signal is sent to a computer. The value is corrected with the help of an exhaust gas pressure or exhaust gas back pressure model stored in the computer. An effective combustion lambda of the cylinder is calculated based on the sent values and a global lambda value stored in the computer and used to the control of the internal combustion engine.

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Номер записи: 88
20-04-2017 дата публикации

VARIABLE VALVE DURATION/VARIABLE VALVE LIFT SYSTEM AND ENGINE PROVIDED WITH THE SAME

Номер: US20170107871A1
Автор: KIM Kyung Mo
Принадлежит:

A variable valve duration/variable valve lift system may include a camshaft, a first cam portion including a first cam, into which the camshaft is inserted and of which a relative phase angle of the first cam with respect to the camshaft is variable, an inner bracket transmitting rotation of the camshaft to the first cam portion, a slider housing into which the inner bracket is rotatably inserted, a first rocker arm having a first end contacting the first cam, a rocker shaft to which the first rocker arm is rotatably connected, a solenoid valve configured to selectively supply hydraulic pressure, a position controller configured to selectively change a position of the slider housing, a first bridge connected to a second end of the first rocker arm and to which a first valve is connected, and a valve lift disposed within the first bridge. 1. A variable valve duration/variable valve lift system , comprising:a camshaft;a first cam portion including a first cam, into which the camshaft is inserted and of which a relative phase angle of the first cam with respect to the camshaft is variable;an inner bracket transmitting rotation of the camshaft to the first cam portion;a slider housing into which the inner bracket is rotatably inserted;a first rocker arm having a first end contacting the first cam;a rocker shaft to which the first rocker arm is rotatably connected;a solenoid valve configured to selectively supply hydraulic pressure;a position controller configured to selectively change a position of the slider housing according to the selective supplying of the hydraulic pressure from the solenoid valve;a first bridge connected to a second end of the first rocker arm and to which a first valve is connected; anda valve lift disposed within the first bridge for changing valve lift of the first valve according to supplying of the hydraulic pressure from the solenoid valve.2. The variable valve duration/variable valve lift system of claim 1 , whereina control hydraulic line ...

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Номер записи: 89
09-06-2022 дата публикации

ROTATING ACTUATOR SYSTEM FOR CONTROLLING VALVE ACTUATION IN AN INTERNAL COMBUSTION ENGINE

Номер: US20220178279A1
Автор: ALEXANDRU Matei, BALTRUCKI Justin D., GRON, HODGKINSON Eric J., JANAK Robb, JR. G. Michael, Moore Jacob, Neal Timothy P., SWANBON Bruce A.
Принадлежит:

A system for controlling actuation of an engine valve comprises a pivot and a torsion spring having first and second legs operatively connected to the pivot. A lever arm is adjustably affixed to and extending away from the pivot, and is further rotatable about a pivot axis of the pivot between a retracted position and an extended position and vice versa relative to a motion conveying component. Furthermore, a housing is provided having a pivot bore formed therein with the pivot rotatably disposed in the pivot bore. The housing further comprises a first and second openings intersecting with the pivot bore such that the first and second legs extend out of the first opening and the lever arm extends out of the second opening. When a first force is applied by the motion conveying component to the lever arm, such first force maintains the lever arm in the extended position. 1. In an internal combustion engine comprising an engine valve and a valve actuation motion source operatively connected to the engine valve by at least one motion conveying component , a system for controlling actuation of the engine valve , the system comprising:a pivot;a torsion spring, having first and second legs, operatively connected to the pivot;a lever arm, adjustably affixed to and extending away from the pivot, rotatable about a pivot axis of the pivot between a retracted position and an extended position and vice versa relative to a motion conveying component of the at least one motion conveying component; anda housing having a pivot bore formed therein and the pivot rotatably disposed in the pivot bore, the housing further comprising a first opening intersecting with the pivot bore and a second opening intersecting with the pivot bore such that the first and second legs extend out of the first opening and the lever arm extends out of the second opening,wherein, in the retracted position, the lever arm has substantially no effect on actuation of the engine valve and, in the extended ...

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Номер записи: 90
27-04-2017 дата публикации

TORSION ASSEMBLY FOR CONTROLLABLY PROVIDING TORQUE TO A CAMSHAFT

Номер: US20170114675A1
Автор: Shewell Jeffrey, Stallmann John
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A torsion assembly for providing controllable torsion to a camshaft, including: a spring assembly including a first spring; and, a contact element arranged to engage at least one lobe for the camshaft. For a locked mode: the contact element is arranged to be displaced by the at least one cam lobe; the contact element is arranged to compress the first spring; and the first spring is arranged to impart a first torque to the camshaft via the contact element. For an unlocked mode, the contact element is arranged to be displaced by the at least one cam lobe and the contact element is arranged to impart a second torque, less than the first torque, to the cam shaft via the contact element. 1. A torsion assembly for providing controllable torsion to a camshaft , comprising:a spring assembly including a first spring; and, [ the contact element is arranged to be displaced by the at least one cam lobe;', 'the contact element is arranged to compress the first spring; and,', 'the first spring is arranged to impart a first torque to the camshaft via the contact element; and,, 'for a locked mode, the contact element is arranged to be displaced by the at least one cam lobe; and,', 'the contact element is arranged to impart a second torque, less than the first torque, to the cam shaft via the contact element., 'for an unlocked mode], 'a contact element arranged to engage at least one lobe for the camshaft, wherein2. The torsion assembly of claim 1 , further comprising:a lock element including a non-displaceable distal end, wherein: a bearing arranged to contact the at least one camshaft lobe; and,', connected to the bearing;', 'disposed about a shaft; and', a first portion with a first end engaged with the spring assembly; and,', 'a second portion including a second end engaged with the distal end of the lock element, wherein:, 'including], 'an arm, the bearing is arranged to be displaced by the at least one lobe;', 'the arm is arranged to non-rotatably connect to the shaft;', 'the ...

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Номер записи: 91
18-04-2019 дата публикации

CONTROL APPARATUS FOR ENGINE

Номер: US20190112988A1
Автор: INOUE Atsushi, Matsumoto Kota, Sueoka Masanari, Urushihara Tomonori
Принадлежит:

This control apparatus of an engine includes an engine, a state quantity setting device, an injector, a spark plug, and a controller. The controller outputs a control signal to the spark plug at a predetermined ignition timing such that, after air-fuel mixture is ignited and combustion is started, unburned air-fuel mixture is combusted by autoignition, and the controller advances an ignition timing when the temperature before start of compression in a combustion chamber is to be reduced. 1. A control apparatus for an engine , the control apparatus comprising:an engine having a combustion chamber;a state quantity setting device mounted to the engine, the state quantity setting device configured to adjust introduction of fresh air and burned gas into the combustion chamber;an injector mounted to the engine, the injector configured to inject fuel;a spark plug disposed so as to face an inside of the combustion chamber; anda controller connected to each of the state quantity setting device, the injector, and the spark plug, the controller configured to output control signals to the state quantity setting device, the injector, and the spark plug, whereinthe controller outputs a control signal to the spark plug at predetermined ignition timing such that, after air-fuel mixture is ignited and combustion is started, unburned air-fuel mixture is combusted by autoignition, andwhen a control amount regarding a temperature before start of compression in the combustion chamber is to be changed such that the temperature is reduced by the controller outputting a control signal to the state quantity setting device, the controller advances the ignition timing as compared to that when the temperature is not reduced.2. The control apparatus for the engine of claim 1 , whereinwhen load on the engine is high, the controller changes the control amount such that the temperature is reduced as compared to that when the load is low, by the controller outputting a control signal to the state ...

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Номер записи: 92
05-05-2016 дата публикации

CAMSHAFT PHASER

Номер: US20160123195A1
Автор: LICHTI THOMAS H.
Принадлежит:

A camshaft phaser includes an input member; an output member defining an advance chamber and a retard chamber with the input member; a valve spool moveable between an advance position and a retard position. The valve spool has a phasing volume and a venting volume defined therein such that the phasing volume is fluidly segregated from the venting volume. The valve spool also has a passage providing fluid communication between the phasing volume and the exterior of the valve spool. Oil is supplied to the advance chamber from the phasing volume through the passage in order to retard the timing of a camshaft and oil is supplied to the retard chamber from the phasing volume through the passage in order to advance the timing of the camshaft. 1. A camshaft phaser for use with an internal combustion engine for controllably varying the phase relationship between a crankshaft and a camshaft in said internal combustion engine , said camshaft phaser comprising:an input member connectable to said crankshaft of said internal combustion engine to provide a fixed ratio of rotation between said input member and said crankshaft;an output member connectable to said camshaft of said internal combustion engine and defining an advance chamber and a retard chamber with said input member; anda valve spool moveable between an advance position and a retard position, said valve spool having a valve spool bore with a phasing volume and a venting volume defined within said valve spool bore such that said phasing volume is fluidly segregated from said venting volume, and said valve spool also having a spool phasing passage providing fluid communication between said phasing volume and the exterior of said valve spool;wherein oil is supplied to said advance chamber from said phasing volume through said spool phasing passage in order to retard the timing of said camshaft relative to said crankshaft; andwherein oil is supplied to said retard chamber from said phasing volume through said spool ...

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Номер записи: 93
05-05-2016 дата публикации

ENGINE WITH EXTERNAL CAM LUBRICATION

Номер: US20160123198A1
Автор: Beyer Theodore, Crowe Jonathan Denis, GRIFFIN Murray, HEGGIE Forest, LEE Ramon Michael
Принадлежит:

An engine, such as a variable displacement engine, has a camshaft retainer. The camshaft retainer has a cap adapted to cooperate with a carrier to support first and second overhead camshafts for rotation. The retainer cap forms a housing for a camshaft journal bearing. The retainer cap also forms a retainer land defining an open channel adapted to provide a jet of lubricating fluid from the bearing housing to externally lubricate a cam. The retainer land is adapted to mate with a sealing land of the carrier to enclose the open channel. 1. A variable displacement engine comprising:an engine block and head defining first and second cylinders, the second cylinder adapted to be selectively deactivated during engine operation;an intake overhead camshaft having an intake pair of cams associated with intake valves of the second cylinder;an exhaust overhead camshaft having an exhaust pair of cams associated with exhaust valves of the second cylinder; anda camshaft carrier plate and a retainer cap cooperating to support camshaft journal bearings of the intake and exhaust camshafts, the retainer cap defining a channel having an inlet in fluid communication with a lubrication passageway associated with one of the bearings, the channel having a pair of outlets spaced apart from outer surfaces of the exhaust pair of cams for external lubrication thereof.2. The engine of wherein the channel in the retainer cap is an open channel claim 1 , and wherein a sealing land of the carrier plate encloses the open channel.3. The engine of wherein cams associated with valves of the first cylinder are internally lubricated.4. The engine of wherein the lubrication passageway of the bearing is associated with the exhaust camshaft.5. The engine of wherein the inlet to the channel is generally perpendicular to a rotational axis of the exhaust camshaft.6. The engine of wherein the pair of outlets is generally perpendicular to the rotational axis of the exhaust camshaft.7. The engine of wherein the ...

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Номер записи: 94
24-07-2014 дата публикации

VARABLY OPERATED VALVE SYSTEM FOR MULTI-CYLINDER INTERNAL COMBUSTION ENGINE AND CONTROL APPARATUS FOR VARIABLY OPERATED VALVE SYSTEM

Номер: US20140202406A1
Автор: Nakamura Makoto
Принадлежит: Hitachi Automotive Systems, Ltd.

In a variably operated valve system for a multi-cylinder internal combustion engine and a control apparatus for the variably operated valve system, a first valve stop mechanism is configured to switch between a valve operation state in which one of a pair of intake valves from among the pair of intake valves of a part of a plurality of cylinders is operated to be open or closed and a valve stopped state in which the valve open or closure operation of the one of the intake valves is stopped, a second valve stop mechanism is configured to switch between the valve operation state in which the other of the pair of intake valves from among the pair of intake valves of the part of the cylinders is operated to be open or closed and the valve stopped state in which the valve open or closure operation is stopped. 1. A variably operated valve system for a multi-cylinder internal combustion engine , the internal combustion engine having a plurality of cylinders , comprising:a pair of intake valves and a pair of or a single exhaust valve disposed for each of the cylinders;a first valve stop mechanism configured to switch between a valve operation state in which one of the pair of intake valves from among the pair of intake valves of a part of the cylinders is operated to be open or closed and a valve stopped state in which the valve open-or-closure operation of the one of the pair of intake valves is stopped; anda second valve stop mechanism configured to switch between the valve operation state in which the other of the pair of intake valves from among the pair of intake valves of the part of the cylinders is operated to be open or closed and the valve stopped state in which the valve open-or-closure operation is stopped, wherein the first valve stop mechanism is configured to be in the valve operation state when a switching energy is supplied and to be in the valve stopped state when the supply of the switching energy is stopped and the second valve stop mechanism is ...

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Номер записи: 95
03-05-2018 дата публикации

LOCKING CLEARANCE SETTING DEVICE FOR CAMSHAFT PHASER

Номер: US20180119580A1
Автор: Camilo Alexandre, de Oliveira Ghiraldi Renato
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A camshaft phaser including a locking clearance setting pin is provided. The camshaft phaser includes a stator including a first plurality of pin holes extending axially in at least one of the radially inwardly extending lobes arranged along an arcuate path. A locking cover engages against a first axial end face of the stator and includes a locking pin bore and a second plurality of pin holes arranged along the arcuate path and angularly spaced apart from one another by a different angular spacing than the first plurality of pin holes. A pin extends through a respective one of the first plurality of pin holes and a corresponding one of the second plurality of pin holes, such that a location of the pin sets an angular adjustment of the locking pin bore relative to the stator. 1. A camshaft phaser comprising:a stator including an outer circumferential wall with radially inwardly extending lobes circumferentially spaced apart from each other, at least one first bolt hole extending axially through at least one of the radially inwardly extending lobes, and a first plurality of pin holes extending axially in at least one of the radially inwardly extending lobes arranged along an arcuate path;a rotor arranged within the stator including radially outwardly extending vanes, each of the vanes being arranged between an adjacent pair of the radially inwardly extending lobes of the stator to define an advance chamber and a retard chamber on opposite sides of each of the vanes between the stator and the rotor;a locking cover engaged against a first axial end face of the stator, the locking cover including a locking pin bore, at least one second bolt hole, and a second plurality of pin holes arranged along the arcuate path and spaced apart from one another by a different angular spacing than the first plurality of pin holes;a sealing cover engaged against a second axial end face of the stator, the sealing cover including at least one third bolt hole;at least one bolt extending ...

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Номер записи: 96
03-05-2018 дата публикации

SHEET METAL LOCKING COVER FOR A CAM PHASER

Номер: US20180119581A1
Автор: Camilo Alexandre, de Oliveira Ghiraldi Renato
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A cam phaser includes a stator, a rotor positioned in the stator, a cover plate positioned on a first side of the stator, a locking cover positioned on a second side of the stator, a locking pin assembly configured to selectively lock the rotor in a position relative to the stator, a plurality of aligned first openings which extend through the stator, the cover plate, and the locking cover, a plurality of fasteners respectively inserted in the plurality of aligned first openings, and a plurality of aligned central openings forming a throughbore. The locking cover has a body made from sheet metal having a first axial side, a second axial side, a plurality of the first openings extending from the first axial side to the second axial aide, and a second opening extending from the first axial side to the second axial side. The body has a web portion and a plurality of reinforcing portions which are thicker than the web portion. 1. A cam phaser , comprisinga stator;a rotor positioned in the stator;a cover plate positioned on a first side of the stator;a locking cover positioned on a second side of the stator;a locking pin assembly configured to selectively lock the rotor in a position relative to the stator;a plurality of aligned first openings which extend through the stator, the cover plate, and the locking cover;a plurality of fasteners respectively inserted in the plurality of aligned first openings; anda plurality of aligned central openings forming a throughbore,wherein the locking cover includes a body made of sheet metal having a first axial side, a second axial side, a plurality of the first openings extending from the first axial side to the second axial aide, and a second opening extending from the first axial side to the second axial side, andwherein the body includes a web portion and a plurality of reinforcing portions which are thicker than the web portion.2. The cam phaser of claim 1 , wherein the reinforcing portions include a rim which extends around a ...

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Номер записи: 97
04-05-2017 дата публикации

VARIABLE VALVE DEVICE FOR INTERNAL COMBUSTION ENGINES AND VALVE TIMING CONTROL DEVICE

Номер: US20170122144A1
Автор: IWASE Yosuke, KAJIURA Mikihiro
Принадлежит: Hitachi Automotive Systems, Ltd.

A variable valve device for an internal combustion engine for varying operating characteristics of engine valves by changing a relative rotational phase of a camshaft to a timing sprocket has an electric motor that rotates the camshaft relatively to the timing sprocket, a cover member provided to cover a front end section of the electric motor, and an angle sensor that detects a rotational angle position of a motor output shaft. The angle sensor includes a detected unit provided inside of a top end section of the motor output shaft and a detecting unit provided on the cover member so as to be opposed to the detected unit through a minute clearance. A metal disk-shaped reinforcing plate is molded and fixed inside of a cover main body of the cover member mainly formed of a synthetic resin material, thus enhancing the entire rigidity of the cover main body. 2. A variable valve device for an internal combustion engine as claimed in claim 1 , wherein:the deformation suppression member is made of a material having a less linear expansion coefficient than the synthetic resin material forming the cover member.3. A variable valve device for an internal combustion engine as claimed in claim 2 , wherein:the deformation suppression member is made of a metal material.4. A variable valve device for an internal combustion engine as claimed in claim 1 , wherein:the rotational angle detection mechanism comprises an electromagnetic induction angle sensor;the detecting unit is arranged to be opposite to the motor output shaft with the deformation suppression member sandwiched between them; andthe deformation suppression member has a through hole formed at a position of the deformation suppression member conformable to the detecting unit.6. A valve timing control device for an internal combustion engine as claimed in claim 5 , wherein:the reinforcing plate is made of a material having a less linear expansion coefficient and a higher elastic modulus than the synthetic resin material of ...

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Номер записи: 98
04-05-2017 дата публикации

MULTI-POSITION CAMSHAFT PHASER WITH TWO ONE-WAY CLUTCHES

Номер: US20170122145A1
Автор: Berndt Eric
Принадлежит:

A camshaft phaser, including: a gear to receive torque; a housing non-rotatably connected to the gear; and a phase adjustment assembly. The phase adjustment assembly includes: first and second frusto-conical shaped surfaces arranged to non-rotatably connect to a camshaft; third and fourth frusto-conical shaped surfaces; and a displacement assembly. The displacement assembly is arranged to: for an advance mode, displace the first frusto-conical surface in the first axial direction to non-rotatably connect the first and third frusto-conical surfaces and so that the second frusto-conical surface is rotatable with respect to the fourth frusto-conical surface in a first circumferential direction; and for a retard mode, displace the second frusto-conical surface in the second axial direction to non-rotatably connect the second and fourth frusto-conical surfaces and so that the first frusto-conical surface is rotatable with respect to the third frusto-conical surface in a second circumferential direction, opposite the first circumferential direction. 1. A camshaft phaser , comprising:a gear arranged to receive torque from an engine;a housing non-rotatably connected to the gear; and, [ tapering radially inward in first and second opposite axial directions, respectively; and,', 'arranged to non-rotatably connect to a camshaft;, 'first and second frusto-conical shaped surfaces, 'third and fourth frusto-conical shaped surfaces tapering radially inward in the first and second axial direction, respectively; and,', 'a displacement assembly arranged to:, 'a phase adjustment assembly including to non-rotatably connect the first frusto-conical shaped surface to the third frusto-conical shaped surface; and,', 'so that the second frusto-conical shaped surface is rotatable with respect to the fourth frusto-conical shaped surface in a first circumferential direction; and,, 'for an advance mode, displace the first frusto-conical shaped surface in the first axial direction to non- ...

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Номер записи: 99
04-05-2017 дата публикации

COMBUSTION ENGINE INTAKE VALVE

Номер: US20170122146A1
Автор: Chirila Laurian Petru
Принадлежит:

An intake valve for a combustion engine is described. The intake valve has a head portion that is designed to improve the flow of air-fuel mixture around the head portion and into the combustion chamber. The head portion has a beveled or rounded edge at the top surface. The angle changes from the underside surface to the top surface are rounded to prevent separation of the air-fuel mixture from the surface of the intake valve. In addition, the underside surface of the head portion has a plurality of helical grooves that induce a circular flow to improve mixing of the air-fuel mixture in the chamber. The helical grooves also improve heat exchange between the air-fuel mixture and the intake valve. 1. An intake valve for a combustion engine , comprising:a head portion having a top surface opposite of an underside surface;a stem portion extending from the underside surface;wherein the top surface has a beveled edge; andwherein the transition from the underside surface to the top surface is rounded.2. The intake valve of claim 1 , wherein the underside surface has a plurality of helical grooves.3. The intake valve of claim 2 , wherein the helical grooves are disposed radially around the stem portion in a counterclockwise direction.4. The intake valve of claim 2 , wherein the helical grooves are disposed radially around the stem portion in a clockwise direction.5. The intake valve of claim 2 , wherein each of the plurality of helical grooves is separated by one of a plurality of helical blades.6. The intake valve of claim 1 , wherein the underside surface comprise a first angled surface and a second angled surface claim 1 , the first angled surface being oriented at a different angle than the second angled surface.7. The intake valve of claim 6 , wherein the transition from the first angled surface to the second angled surface is rounded.8. The intake valve of claim 6 , wherein the beveled edge joins with the second angled surface.9. The intake valve of claim 6 , wherein ...

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Номер записи: 100