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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 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 7. Отображено 7.
24-04-2014 дата публикации

Piston and tribological system consisting of a piston and a cylinder running surface of a cylinder crank case for an internal combustion engine

Номер: US20140109861A1
Автор: Cedric Dobua, Stephan Korner, Wolfgang Schlenther
Принадлежит: MAHLE International GmbH

A piston for an internal combustion engine may include a piston head and a piston skirt. The piston skirt may have piston bosses provided with boss bores. The piston bosses may be connected to each other at running surfaces. The running surfaces may be provided at least partially with a coating which is sprayed using a cold gas method. The material of the coating may be selected from the group comprising at least one of nickel, iron, copper, nickel-based alloys, iron-based alloys, copper-nickel-tin-based alloys and copper-tin-silver-based alloys.

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Номер записи: 1
18-09-2014 дата публикации

ANTI-FRICTION COATING TO PISTON ASSEMBLY

Номер: US20140272188A1
Автор: Cedric Dobua, Kara Zeynep, Rose Reinhard, Weisse Volker
Принадлежит: MAHLE International GmbH

A method of applying an anti-friction coating to a piston assembly is provided including applying an anti-friction coating to at least a portion of the surface area of a piston. The anti-friction coating comprises a binder matrix and a solid lubricant. A localized curing energy is applied to only a portion of the surface area. The localized curing energy comprises a first curing energy. 1. A method of applying an anti-friction coating to a piston assembly , comprising:applying an anti-friction coating to at least a portion of the surface area of a piston, said anti-friction coating comprising a binder matrix and a solid lubricant;applying a localized curing energy to only a portion of said surface area, said localized curing energy comprising a first curing energy.2. The method of claim 1 , wherein said first curing energy comprises one of infra-red radiation claim 1 , ultra-violet radiation claim 1 , and induction radiation.3. The method of claim 1 , further comprising:subjecting said piston to a second curing energy after applying said first curing energy.4. The method of claim 3 , wherein said second curing energy comprises hot air convection.5. The method of claim 3 , wherein said second curing energy comprises one of infra-red radiation claim 3 , ultra-violet radiation claim 3 , and inductive radiation.6. The method of claim 1 , wherein the binder matrix comprises a polymer matrix comprising one of polyamide-imide claim 1 , polyetheretherketone claim 1 , polyetherketone claim 1 , polyetherketoneketone claim 1 , polyaryletherketone and epoxy resin.7. The method of claim 1 , wherein said anti-friction coating further comprises metallic pigments.8. The method of claim 7 , wherein said metallic pigments react with said localized curing energy to generate regional curing thermal energy.9. The method of claim 1 , wherein said localized curing energy is applied utilizing a controlled beam.10. The method of claim 1 , wherein further comprising:selecting at least one ...

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Номер записи: 2
09-11-2017 дата публикации

Piston for an internal combustion engine with a shaft

Номер: US20170321626A1
Автор: Cedric Dobua, Zeynep Kara
Принадлежит: MAHLE International GmbH

A piston for an internal combustion engine may include a shaft. A dual-layer coating with an inner layer and an outer layer may be applied to the shaft. The inner layer may include organic binders and solid lubricants. The inner layer may also include hard material particles of at least one of tungsten disulphide (WS 2 ), tungsten carbide (WC), silicon carbide (SiC), and aluminium oxide (Al 2 O 3 ). The outer layer may include inorganic binders, may be air-hardening, and may have a lower wear resistance than the inner layer.

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Номер записи: 3
18-09-2014 дата публикации

Wearable anti-friction coating for piston assembly

Номер: WO2014144619A1
Автор: Dobua Cedric, Reinhard Rose, Volker Weisse, William Heckman, Zeynep Kara
Принадлежит: MAHLE International GmbH

A method of applying an anti-friction coating to a piston assembly is provided including applying an anti-friction coating to at least a portion of the surface area of a piston. The antifriction coating comprises a binder matrix and a solid lubricant. A localized curing energy is applied to only a portion of the surface area. The localized curing energy comprises a first curing energy.

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Номер записи: 4
12-10-2023 дата публикации

Verfahren zum Verbinden eines ersten Bauteils mit einem zweiten Bauteil mittels Laserschweißen und Wellenanordnung

Номер: DE102022203695A1
Автор: Cedric Dobua, Christoph Steinmetz, Patrick Altherr
Принадлежит: MAHLE International GmbH

Die vorliegende Erfindung betrifft ein Verfahren zum Verbinden eines ersten Bauteils (2) mit einem zweiten Bauteil (4) mittels Laserschweißen. Um dabei Verschmutzungen durch Schweißperlen zu vermeiden und zugleich eine hohe Qualität einer Schweißnaht (13) gewährleisten zu können, ist vorgesehen, - dass an einer ersten axialen Fügefläche (17) des ersten Bauteils (2) und/oder an einer zweiten axialen Fügefläche (18) des zweiten Bauteils (4) zumindest eine Entlüftungskontur (7, 7') eingebracht wird, über die zwischen den beiden miteinander zu verbindenden Bauteilen (2, 4) vorhandenes Gas, insbesondere Luft, während des Laserschweißens entweichen kann, - dass das erste Bauteil (2) über die erste axiale Fügefläche (17) mit Passung mit der zweiten axialen Fügefläche (18) des zweiten Bauteils (4) verbunden wird, - dass die beiden Bauteile (2, 4) mittels Laserschweißen miteinander verbunden werden.

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Номер записи: 5
26-11-2013 дата публикации

Pistão, bem como sistema tribológico de um pistão e face de deslocamento de um pistão de um alojamento de eixo-manivela para cilindro, para um motor de combustão

Номер: BR102012027071A2
Автор: Cedric Dobua, Stephan Koerner, Wolfgang Schlenther
Принадлежит: Mahle Int Gmbh

PISTÃO, BEM COMO SISTEMA TRIBOLÓGICO DE UM PISTÃO E FACE DE DESLOCAMENTO DE UM PISTÃO DE UM ALOJAMENTO DE EIXO-MANIVELA PARA CILINDRO, PARA UM MOTOR DE COMBUSTÃO. A presente invenção refere-se a um pistão (11) para um motor de combustão com um cabeçote de pistão (12) e uma haste de pistão (16), sendo que a haste de pistão (16) possui cubos de pistão (17), providos de perfurações de cubos (18), sendo que os cubos de pistão (17) estão interligados através de faces de deslocamento (19), caracterizado pelo fato de que as faces de deslocamento (19) estão ao menos parcialmente providas de um revestimento (30), borrifado no processo de gás frio, e o material do revestimento (30) é escolhido do grupo abrangendo níquel, ferro, cobre, ligas baseadas em níquel, ligas baseadas em ferro, ligas baseadas no sistema conre-níquel-estanho, e ligas baseadas no sistema cobre-estanho-prata. Além disso, a presente invenção abrange um sistema tribológico (10) com um pistão (11) desta espécie.

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Номер записи: 6
30-05-2024 дата публикации

Method for machining an annular groove

Номер: US20240173782A1
Автор: Cedric Dobua, Roland Lochmann
Принадлежит: MAHLE International GmbH

A method for machining an annular groove, which is circumferential in a circumferential direction, on a cylindrical outer circumferential surface of a component is disclosed. The annular groove may have two lateral groove walls and a groove base transitioning into the two lateral groove walls in a respective transition region of two transition regions. The method may include contacting the groove base with a free end of a tool. The free end may include two lateral convex regions and a withdrawn region arranged therebetween. The method may further include reinforcing the annular groove such that the two transition regions of the annular groove are reinforced more strongly than a centre region of the groove base.

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Номер записи: 7