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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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Применить Всего найдено 21. Отображено 19.
06-10-2016 дата публикации

Cylinder Liner For An Opposed-Piston Engine

Номер: US20160290277A1
Автор: John J. Koszewnik, Bryant A. Wagner, KOSZEWNIK JOHN J, WAGNER BRYANT A, Koszewnik John J., Wagner Bryant A.
Принадлежит: ACHATES POWER, INC.

A cylinder liner for an opposed-piston engine, and corresponding methods of extending engine durability and thermal management therewith, has opposite ends and a bore with a longitudinal axis for supporting reciprocating movement of a pair of opposed pistons. An intermediate portion of the liner extends between the opposite ends and includes an annular liner portion within which the pistons reach respective TC locations. A liner ring is seated in a portion of the bore in the annular liner portion, between the TC locations, for scraping carbon from top lands of the pistons and/or increasing the thermal resistance of the annular liner portion.

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Номер записи: 1
19-12-2017 дата публикации

Cylinder liner for an opposed-piston engine

Номер: US0009845764B2
Автор: John J. Koszewnik, Bryant A. Wagner, KOSZEWNIK JOHN J, WAGNER BRYANT A, Koszewnik John J., Wagner Bryant A.
Принадлежит: ACHATES POWER, INC., ACHATES POWER INC

A cylinder liner for an opposed-piston engine, and corresponding methods of extending engine durability and thermal management therewith, has opposite ends and a bore with a longitudinal axis for supporting reciprocating movement of a pair of opposed pistons. An intermediate portion of the liner extends between the opposite ends and includes an annular liner portion within which the pistons reach respective TC locations. A liner ring is seated in a portion of the bore in the annular liner portion, between the TC locations, for scraping carbon from top lands of the pistons and/or increasing the thermal resistance of the annular liner portion.

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Номер записи: 2
01-11-2016 дата публикации

Oil retention in the bore/piston interfaces of ported cylinders in opposed-piston engines

Номер: US0009482153B2
Автор: Steven J. Bethel, Brian J. Callahan, Bryant A. Wagner, BETHEL STEVEN J, CALLAHAN BRIAN J, WAGNER BRYANT A, Bethel Steven J., Callahan Brian J., Wagner Bryant A.
Принадлежит: ACHATES POWER, INC., BETHEL STEVEN J, CALLAHAN BRIAN J, WAGNER BRYANT A, ACHATES POWER INC, Bethel Steven J., Callahan Brian J., Wagner Bryant A.

An opposed piston engine includes at least one cylinder with a bore surface and longitudinally-spaced exhaust and intake ports that open through the sidewall of the cylinder. A pair of opposed pistons is disposed in the cylinder for sliding movement along the bore surface. An oil-retaining surface texture pattern in an interface between the pistons and the bore surface extends in a longitudinal direction of the cylinder, aligned with bridges of at least one port. The surface texture pattern includes a plurality of separate recesses on an outside surface of a skirt of each piston. Alternatively, or in addition, the surface texture pattern includes a plurality of separate recesses extending in a longitudinal direction of the cylinder, aligned with bridges of at least one port.

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Номер записи: 3
26-07-2012 дата публикации

Oil retention in the bore/piston interfaces of ported cylinders in opposed-piston engines

Номер: US20120186561A1
Автор: Brian J. Callahan, Bryant A. Wagner, Steven J. Bethel
Принадлежит: Achates Power Inc

An opposed piston engine includes at least one cylinder with a bore surface and longitudinally-spaced exhaust and intake ports that open through the sidewall of the cylinder. A pair of opposed pistons is disposed in the cylinder for sliding movement along the bore surface. An oil-retaining surface texture pattern in an interface between the pistons and the bore surface extends in a longitudinal direction of the cylinder, aligned with bridges of at least one port. The surface texture pattern includes a plurality of separate recesses on an outside surface of a skirt of each piston. Alternatively, or in addition, the surface texture pattern includes a plurality of separate recesses extending in a longitudinal direction of the cylinder, aligned with bridges of at least one port.

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Номер записи: 4
01-03-2018 дата публикации

CYLINDER LINER FOR AN OPPOSED-PISTON ENGINE

Номер: US20180058368A1
Автор: Koszewnik John J., Wagner Bryant A.
Принадлежит: Achates Power, Inc.

A cylinder liner for an opposed-piston engine, and corresponding methods of extending engine durability and thermal management therewith, has opposite ends and a bore with a longitudinal axis for supporting reciprocating movement of a pair of opposed pistons. An intermediate portion of the liner extends between the opposite ends and includes an annular liner portion within which the pistons reach respective TC locations. A liner ring is seated in a portion of the bore in the annular liner portion, between the TC locations, for scraping carbon from top lands of the pistons and/or increasing the thermal resistance of the annular liner portion. 19-. (canceled)10. A method for thermal management in a cylinder liner of an opposed-piston engine , comprising:causing combustion of a mixture of fuel and air between the end surfaces of a pair of pistons disposed in the cylinder liner of the opposed-piston engine when the pistons are near respective top center locations in an annular liner portion of the cylinder liner; and,impeding flow of heat through the cylinder liner with a higher resistance in the annular liner portion than in the rest of the cylinder liner.11. A method of manufacturing a cylinder liner for an opposed-piston engine , comprising:providing a cylinder liner for an opposed-piston engine, in which the cylinder liner includes intake and exhaust ports near respective ends thereof;{'sub': '1', 'honing a bore having a first diameter Din the liner;'}forming an annular groove in the bore at an annular liner portion containing piston top center (TC) locations;{'sub': 2', '1', '2, 'providing an annular ring having an interior diameter D, wherein D>D;'}{'sub': '1', 'heating the cylinder liner to increase the diameter D;'}heating the annular ring;placing the annular ring in the bore over the annular groove;swaging the annular ring into the annular groove; and,cooling the cylinder liner and the annular ring.12. The method of claim 11 , further including claim 11 , from ...

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Номер записи: 5
28-03-2019 дата публикации

Multi-layered piston crown for opposed-piston engines

Номер: US20190093597A1
Автор: Bryant A. Wagner, Ryan G. MacKenzie
Принадлежит: Achates Power Inc

A piston crown for a piston of a pair of pistons in a two-stroke, opposed-piston, compression ignition combustion engine has a barrier layer and a conductive layer. The barrier layer at least partially surrounds a combustion chamber formed by the piston crown and an end surface of an opposing piston. The conductive layer connects the crown to the rest of the piston body. The barrier layer and the conductive layer are joined either through welding or through the fabrication process. Optionally, the piston crown includes an insulating layer between the barrier and conductive layers.

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Номер записи: 6
21-05-2020 дата публикации

ROBUST SUPERCHARGER FOR OPPOSED-PISTON ENGINES EQUIPPED WITH EXHAUST GAS RECIRCULATION

Номер: US20200158131A1
Автор: KESSLER JOHN M., KOSZEWNIK JOHN, Wagner Bryant A.
Принадлежит: Achates Power, Inc.

A supercharger assembly includes rotors, a base plate, and a housing with an anti-fouling material on one or more surfaces where accumulation of soot and/or soot-like material may lead to mechanical friction and possibly seizing. The anti-fouling material can have oleophobic and/or hydrophobic properties. 2. The supercharger assembly of claim 1 , wherein the housing comprises the anti-fouling material on an inside surface.3. The supercharger assembly of claim 1 , wherein each of the first and second rotors comprises the anti-fouling material on the bearing plate facing end.4. The supercharger assembly of claim 1 , wherein the anti-fouling material comprises a layer of anodized material impregnated with a material with hydrophobic and oleophobic properties.5. An air handling system of a two-stroke claim 1 , internal combustion engine claim 1 , comprising:an exhaust gas recirculation (EGR) system; anda supercharger assembly coupled to receive recirculated exhaust from the EGR system, a bearing plate;', 'a first rotor and a second rotor;', 'each rotor comprising two or more lobes; two or more valleys; a bearing plate facing end; and, a housing facing end; and,, 'the supercharger assembly comprisinga housing that, with the bearing plate, encloses the first and second rotors;wherein the bearing plate includes anti-fouling material on a surface adjacent to the bearing plate facing ends of the first and second rotors.6. A method of making a supercharger assembly claim 1 , comprising:preparing one or more components of the supercharger assembly for formation of an anti-fouling material; andforming an anti-fouling material coating on at least a portion of a surface of the one or mare components.7. The method of claim 6 , further comprising assembling the one or more components with the anti-fouling material coating with other components of the supercharger assembly to create a complete supercharger assembly.8. The method of claim 6 , wherein preparing one or more components ...

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Номер записи: 7
31-08-2017 дата публикации

MULTI-LAYERED PISTON CROWN FOR OPPOSED-PISTON ENGINES

Номер: US20170248099A1
Автор: MacKenzie Ryan G., Wagner Bryant A.
Принадлежит: Achates Power, Inc.

A piston crown for a piston of a pair of pistons in a two-stroke, opposed-piston, compression ignition combustion engine has a barrier layer and a conductive layer. The barrier layer at least partially surrounds a combustion chamber formed by the piston crown and an end surface of an opposing piston. The conductive layer connects the crown to the rest of the piston body. The barrier layer and the conductive layer are joined either through welding or through the fabrication process. Optionally, the piston crown includes an insulating layer between the barrier and conductive layers. 1. An internal combustion engine including at least one cylinder with longitudinally-separated exhaust and intake ports and a pair of pistons disposed in opposition to one another in a bore of the cylinder , each piston including:a piston body with a crown at one end; andan end surface on the crown, in which an end surface of a first piston has a bowl that cooperates with the end surface of an opposing piston to define a combustion chamber, a barrier layer located in the end surface such that the combustion chamber is enclosed at least in part by the barrier layer;', 'the barrier layer having a thermal conductivity of 15 W/m·° C. or less;', 'a conductive layer located adjacent to the barrier layer, the conductive layer connecting the crown to the rest of piston body; and,', 'the conductive layer having a thermal conductivity of 25 W/m·° C. or more., 'the crown comprising2. The internal combustion engine of claim 1 , further comprising claim 1 , in each piston at least one void between the barrier layer and the conductive layer of the crown.3. The internal combustion engine of either or claim 1 , further comprising claim 1 , in each piston:an insulating layer between the barrier layer and the conductive layer, the insulating layer having a thermal conductivity of 2 W/m·° C. or less.4. (canceled)5. A piston for a two-stroke claim 1 , oppose-piston claim 1 , internal combustion engine claim 1 ...

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Номер записи: 8
07-09-2017 дата публикации

BARRIER RING AND ASSEMBLY FOR A CYLINDER OF AN OPPOSED-PISTON ENGINE

Номер: US20170254288A1
Автор: Lee Patrick R., SAHASRABUDHE ABHISHEK, Wagner Bryant A.
Принадлежит: Achates Power, Inc.

A barrier ring for a cylinder assembly for an opposed-piston engine fits into a groove fashioned into a portion of the cylinder liner that is adjacent to the top dead center location of the end surfaces of the pistons, in a volume of the cylinder liner that defines the combustion chamber. The barrier ring and groove are part of a barrier assembly that prevents heat generated during combustion from reaching the outer wall of the cylinder assembly, reducing the need for conventional cooling systems and increasing the amount of heat retained in the combustion chamber. The barrier assembly allows for increased engine efficiency because of the combustion heat retained in the combustion chamber, as well as a reduction in the overall size of the engine because of the reduction in engine cooling needed. 1. A barrier ring for a cylinder assembly of an opposed-piston engine , comprising: wall edges configured to contact side walls in a groove in a cylinder bore;', 'a first set of openings in the wall for communication between engine hardware and a combustion chamber, the combustion chamber partially defined by a first end surface on a first piston and a second end surface on a second piston when the first and second pistons are near respective top dead center positions in the cylinder bore; and', 'a second set of openings in the wall, the second set of openings configured to allow for pressure equalization across the tube, between the volume inside the tube and a volume outside the tube,, 'an open-ended tube with a wall defining a volume inside the tube, the tube comprisingwherein the tube has a height of about 2 mm to about 20 mm more than a diameter of a largest opening of the first set of openings.2. The barrier ring of claim 1 , further comprising folded wall edges.3. The barrier ring of claim 1 , wherein the second set of openings comprises circular claim 1 , elliptical claim 1 , triangular claim 1 , rectangular claim 1 , and/or square shaped openings.4. The barrier ring ...

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Номер записи: 9
22-11-2018 дата публикации

PORTED ENGINE CONSTRUCTIONS WITH LOW-TENSION COMPRESSION SEALS

Номер: US20180335141A1
Автор: Lemke James U., Wagner Bryant A.
Принадлежит: Achates Power, Inc.

In ported engine constructions, cooling of piston crowns and cylinder liners results in reduction or elimination of bore/liner distortions, thus ensuring circularity of the bore/piston interface throughout engine operation. Consequently, the need for heavily-tensioned piston rings is eliminated. Such engine constructions incorporate annular low-tension compression seals on the pistons, which substantially reduce port bridge wear during all phases of engine operation while also limiting blow-by during combustion. 1. A compression seal device in a ported internal combustion engine in which circularity is maintained between the bore of a ported cylinder and an axially symmetrical piston having a compression seal mounted in an annular groove , the compression seal having an annular bearing surface to maintain a sealing annular contact with the bore , with no clearance between the bearing surface and the bore , in response to a residual low level of compression seal tension in the direction of the bore when the piston is near a bottom dead center (BDC) position , and to maintain a sealing annular contact with the bore , with no clearance between the bearing surface and the bore , in response to a high level of compression seal tension in the direction of the bore resulting from pressure of combustion acting against an inner peripheral surface of the compression seal when the piston is near a top dead center (TDC) position.2. The compression seal device of claim 1 , in which the bearing surface has a barrel-shaped contour.3. The compression seal device of claim 1 , in which the gapped annular body comprises steel or cast iron.4. The compression seal device of claim 1 , in which the crown of each piston comprises steel and each compression seal comprises steel.5. A sealing apparatus for an opposed piston engine in which a pair of opposed pistons is disposed in the bore of a ported cylinder claim 1 , comprising:coolant structures in each piston for directing liquid coolant ...

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Номер записи: 10
10-11-2011 дата публикации

Single-crankshaft, opposed-piston engine constructions

Номер: WO2011097016A3
Автор: Bryant A. Wagner, James U. Lemke, Patrick R. Lee, William B. Mchargue
Принадлежит: Achates Power, Inc.

Ported engines with opposed pistons are coupled to a single crankshaft through rocker arm linkages. Each pair of opposed pistons is coupled to a single crankpin of the crankshaft. Each piston is coupled to a respective rocker arm linkage by a rolling thrust bearing which prevents linkage movement that is transverse to the axis of the piston from being transferred to the piston. Each piston of a pair of opposed pistons is coupled to the same crankpin by respective rocker arm linkages in which connecting rods run between the crankpin and respective rocker arms. One connecting rod is connected to first rocker arm below the rocker arm's pivot point and another connecting rod is connected to a second rocker arm above the rocker arm's pivot point.

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Номер записи: 11
01-09-2015 дата публикации

Liner component for a cylinder of an opposed-piston engine

Номер: US9121365B1
Автор: Bryant A. Wagner
Принадлежит: Achates Power Inc

The structure of a cylinder with longitudinally-separated exhaust and intake ports includes a powdered metal (PM) ring sintered over grooves and/or slots in the exhaust port bridges and/or the top center (TC) portion of a cylinder liner.

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Номер записи: 12
22-02-2017 дата публикации

Liner component for a cylinder of an opposed-piston engine

Номер: EP3132129A1
Автор: Bryant A. Wagner
Принадлежит: Achates Power Inc

The structure of a cylinder with longitudinally-separated exhaust and intake ports includes a powdered metal (PM) ring sintered over grooves and/or slots in the exhaust port bridges and/or the top center (TC) portion of a cylinder liner.

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Номер записи: 13
06-11-2018 дата публикации

Multi-layered piston crown for opposed-piston engines

Номер: US10119493B2
Автор: Bryant A. Wagner, Ryan G. MacKenzie
Принадлежит: Achates Power Inc

A piston crown for a piston of a pair of pistons in a two-stroke, opposed-piston, compression ignition combustion engine has a barrier layer and a conductive layer. The barrier layer at least partially surrounds a combustion chamber formed by the piston crown and an end surface of an opposing piston. The conductive layer connects the crown to the rest of the piston body. The barrier layer and the conductive layer are joined either through welding or through the fabrication process. Optionally, the piston crown includes an insulating layer between the barrier and conductive layers.

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Номер записи: 14
09-01-2019 дата публикации

Barrier ring and assembly for a cylinder of an opposed-piston engine

Номер: EP3423696A1
Автор: Abhishek Sahasrabudhe, Bryant A. Wagner, Patrick R. Lee
Принадлежит: Achates Power Inc

A barrier ring for a cylinder assembly for an opposed-piston engine fits into a groove fashioned into a portion of the cylinder liner that is adjacent to the top dead center location of the end surfaces of the pistons, in a volume of the cylinder liner that defines the combustion chamber. The barrier ring and groove are part of a barrier assembly that prevents heat generated during combustion from reaching the outer wall of the cylinder assembly, reducing the need for conventional cooling systems and increasing the amount of heat retained in the combustion chamber. The barrier assembly allows for increased engine efficiency because of the combustion heat retained in the combustion chamber, as well as a reduction in the overall size of the engine because of the reduction in engine cooling needed.

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Номер записи: 15
08-09-2017 дата публикации

Barrier ring and assembly for a cylinder of an opposed-piston engine

Номер: WO2017151365A1
Автор: Abhishek Sahasrabudhe, Bryant A. Wagner, Patrick R. Lee
Принадлежит: Achates Power, Inc.

A barrier ring for a cylinder assembly for an opposed-piston engine fits into a groove fashioned into a portion of the cylinder liner that is adjacent to the top dead center location of the end surfaces of the pistons, in a volume of the cylinder liner that defines the combustion chamber. The barrier ring and groove are part of a barrier assembly that prevents heat generated during combustion from reaching the outer wall of the cylinder assembly, reducing the need for conventional cooling systems and increasing the amount of heat retained in the combustion chamber. The barrier assembly allows for increased engine efficiency because of the combustion heat retained in the combustion chamber, as well as a reduction in the overall size of the engine because of the reduction in engine cooling needed.

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Номер записи: 16
07-02-2018 дата публикации

Cylinder liner for an opposed-piston engine

Номер: EP3277945A1
Автор: Bryant A. Wagner, John J. KOSZEWNIK
Принадлежит: Achates Power Inc

A cylinder liner for an opposed-piston engine, and corresponding methods of extending engine durability and thermal management therewith, has opposite ends and a bore with a longitudinal axis for supporting reciprocating movement of a pair of opposed pistons. An intermediate portion of the liner extends between the opposite ends and includes an annular liner portion within which the pistons reach respective TC locations. A liner ring is seated in a portion of the bore in the annular liner portion, between the TC locations, for scraping carbon from top lands of the pistons and/or increasing the thermal resistance of the annular liner portion.

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Номер записи: 17
06-10-2016 дата публикации

Cylinder liner for an opposed-piston engine

Номер: WO2016160340A1
Автор: Bryant A. Wagner, John J. KOSZEWNIK
Принадлежит: Achates Power, Inc.

A cylinder liner for an opposed-piston engine, and corresponding methods of extending engine durability and thermal management therewith, has opposite ends and a bore with a longitudinal axis for supporting reciprocating movement of a pair of opposed pistons. An intermediate portion of the liner extends between the opposite ends and includes an annular liner portion within which the pistons reach respective TC locations. A liner ring is seated in a portion of the bore in the annular liner portion, between the TC locations, for scraping carbon from top lands of the pistons and/or increasing the thermal resistance of the annular liner portion.

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Номер записи: 18
14-11-2018 дата публикации

Multi-layered piston crown for opposed-piston engines

Номер: EP3400380A1
Автор: Bryant A. Wagner, Ryan G. MacKenzie
Принадлежит: Achates Power Inc

A piston crown for a piston of a pair of pistons in a two-stroke, opposed-piston, compression ignition combustion engine has a barrier layer and a conductive layer. The barrier layer at least partially surrounds a combustion chamber formed by the piston crown and an end surface of an opposing piston. The conductive layer connects the crown to the rest of the piston body. The barrier layer and the conductive layer are joined either through welding or through the fabrication process. Optionally, the piston crown includes an insulating layer between the barrier and conductive layers.

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Номер записи: 19