actuators, sensors, instruments for measuring, testing and monitoring in research applications, namely, for use in engine test equipment for internal combustion engines; piezoelectric crystals, strain gauges, piezoelectric and electroacoustic components, namely, piezoelectric resonators, pressure sensors, high-pressure sensors, static and dynamic calibrators for high-pressure sensors, acceleration sensors, measuring equipment, namely, meters for determination of the resonance behavior of piezoelectric pressure sensors, force sensors, distance sensors, optical sensors, capacitive and inductive transducers, microwave sensors; measuring probes and instruments for applications in biotechnology and environmental protection, devices for analyzing environmental samples, and microcomputers and microprocessors for such devices; ion-selective sensors based on fluorescence-optical principles of measurement; fluorescence photometers and equipment for spectroscopic analyses; measuring probes and equipment for monitoring sewage or waste water plants and for protection of water bodies; apparatus for determining the concentration of an agent contained in a substance, namely, luminescent indicators, electro-optical measuring instruments, electro-chemical electrodes, microelectrodes; microoptical and micro-electrochemical sensors with evaluation electronics; measuring instruments and measuring apparatus, namely, meters for science applications, namely, engine emission testing and analysis and vehicle chassis dynamometer, measuring machines, namely, in engine test equipment, test instruments, test apparatus, testing machines, weighing, signaling and monitoring equipment, namely, in engine test equipment, flowmeters, thermometers, meters for measuring structure-borne sound and air-borne sound, flow regulators, pressure regulators, speed regulators; electronic liquid level measuring devices, instruments for measuring pressure vibrations in liquids, meters for measuring torsional vibrations, capacitive distance meters for upper dead center of reciprocating engines, meters for measuring the composition of exhaust gases, densitometers, angle marker generators, photoelectric barriers, microwave interferometers, speed measuring meters, cadence calculators, calibrators for sensors and measuring equipment, electric charge amplifiers, laser-optical instruments for investigation of flow phenomena in liquids and gases; monitors for internal combustion engines both self-driven and externally driven, monitors for internal combustion engines in operation, meters for thermodynamic evaluation of internal combustion engines; dynamometric brakes for test stands, controllers for internal combustion engines, partly and fully automated engine test stands and test stands for subassemblies and their components, test stands for the testing of aircraft components; computer and control program for the operating and testing of internal combustion engines and for the analysis of exhaust gas emissions, their generation and reduction, and for stresses, strains, vibrations, noise generation, noise propagation and noise radiation; computer programs for flow phenomena and combustion processes inside the engine, and for processes of mixture-forming and mixture-layering; computer programs for simulation of thermodynamic processes; computer programs for simulation of flows, temperature and pressure curves; computer programs for simulation of temperature distribution in solid bodies, especially in components of internal combustion engines and their subassemblies; computer programs for simulation of combustion and detonation processes; computer programs for flow processes and combustion processes, and for processes of mixture-formation, charging and mixture-layering in internal combustion engines, computer programs for external flows around moving parts and bodies, especially landcraft, aircraft and watercraft, computer programs for flows in closed spaces, especially air conditioning application; computer programs for analysis of exhaust gas emissions, their generation and reduction; electrotechnical machinery and apparatus for land vehicles, such as electric vehicles and hybrid vehicles, namely, electrical controllers

maintenance of electronic measuring, testing and monitoring devices and of electronic measuring, testing and monitoring facilities

training courses and classes for company personnel and guest engineers in engine design, research and development, and in measurement technology and instrumentation, including shows of cine and video films

research in engine construction, measurement technology and instrumentation, engineering, expert work and expertises; development for others of machinery and apparatus, test stands, dynamic test stands, simulation test stands, cold test stands, manufacture test stands; test equipment, measuring instruments and experimental gear for engines and machines; calculation, analysis and testing of the influence of fuels and lubricating oils on exhaust emissions and on the abrasive and corrosive wear of engine components and resulting particle emissions; calculation, analysis and testing of oil consumption based on the metallic components of particle emissions; chemical and spectroscopic analysis in the field of transient exhaust emission technology, namely, of exhaust gases and particle emissions; analysis of overall behavior noise generation and silencing; development for others and calculation work on noise reduction in engines and gear trains and total systems; analyzing and consulting work on internal combustion engines and systems operated by such engines, and on gear trains, development of computer and control programs for others for the operating and testing of internal combustion engines and for analysis of exhaust gas emissions, their generation and reduction, and for stresses, strains, vibrations, noise generation, noise propagation and noise radiation; development of computer programs for others for flow phenomena and combustion processes inside the engine and for processes of mixture-formation and mixture-layering; development of computer programs for others for simulation of thermodynamic processes; development of computer programs for others for simulation of flows, temperature and pressure curves; development of computer programs for others for simulation of temperature distribution in solid bodies, especially in components of internal combustion engines and their subassemblies; development of computer programs for others for simulation of combustion and detonation processes; development of computer programs for others for flow processes and combustion processes, and for processes of mixture-formation, charging and/or mixture-layering in internal combustion engines, development of computer programs for others for external flows around moving parts and bodies, especially landcraft, aircraft and watercraft, development of computer programs for others for flows in closed spaces, especially air conditioning applications; development of computer programs for others, for analysis of exhaust gas emissions, their generation and reduction; rental of data processing systems and rental of computer, simulation, and control programs for the operating and testing of internal combustion engines