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Dive into the research topics where Martin Graz is active.

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Featured researches published by Martin Graz.


ATZ worldwide | 2001

Carbon dioxide R744 as a refrigerant in automotive air-conditioning systems

Peter Kuhn; Martin Graz; Frank Obrist; Willi Parsch; Frank Rinne

Toyota’s announcement that they are to use environmentally friendly, high-performance air-conditioning systems based on the refrigerant R744 as from the year 2003 confirms a world-wide trend. German competitors documented their development achievements in this area during the course of SAE conferences in Phoenix during the period 1998 to 2000. The authors who contributed to the present article come from LuK/Sanden and Obrist Engineering, both of which work closely with Audi, BMW, DaimlerChrysler, Volkswagen and their suppliers to develop components and processes.


ATZ - Automobiltechnische Zeitschrift | 2001

Kohlendioxid-R744 als Kaeltemittel in Fahrzeug-Klimaanlagen

Peter Kuhn; Martin Graz; Frank Obrist; Willi Parsch; Frank Rinne

Die Ankundigung von Toyota, umweltfreundliche und leistungsfahige Klimaanlagen mit dem Kaltemittel R744 ab 2003 serienmasig einzusetzen, bestatigt einen weltweiten Trend. Auch die deutschen Wettbewerber haben — unter anderem im Verlauf von SAE-Veranstaltungen in Phoenix in den Jahren 1998 bis 2000 — ihre Entwicklungsleistungen auf diesem Gebiet dokumentiert. Das Autorenteam besteht aus Mitarbeitern der Firmen LuK/Sanden und Obrist Engineering, die in enger Zusammenarbeit mit Audi, BMW, DaimlerChrysler, Volkswagen und deren Zulieferern Komponenten und Prozesse fur zukunftige Klimaanlagen entwickeln.


Archive | 2005

Heat exchanger for a motor vehicle air conditioning system

Frank Obrist; Norbert Tessendorf; Peter Kuhn; Martin Graz


Archive | 2012

Passenger car having an air conditioning system

Frank Obrist; Christian Schmälzle; Martin Graz; Gunnar Busse


Archive | 2007

Heat exchanger arrangement

Frank Obrist; Martin Graz; Peter Giese; Oliver Obrist


Archive | 2017

HEAT EXCHANGER FOR A BATTERY

Frank Obrist; Martin Graz; Joachim Georg Roth; Peter Giese


Archive | 2005

Wärmetauscher einer Fahrzeugklimaanlage

Frank Obrist; Norbert Tessendorf; Peter Kuhn; Martin Graz


Archive | 2003

Climate-control unit for automobile passenger compartment has 3-way valve selectively coupling main section of heat transfer medium circulation system in series with heating or cooling secondary section

Dirk Schroeder; Christian Rebinger; Frank Obrist; Martin Graz; Uwe Wuitz


Archive | 2018

SYSTÈME DE BATTERIE

Frank Obrist; Oliver Obrist; Martin Graz


Archive | 2017

BATTERY SYSTEM WITH COOLING DEVICE

Frank Obrist; Martin Graz; Joachim Georg Roth

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