Günther Herdin, Johann Klausner. GE Jenbacher GmbH & Company, Jenbach, Austria. Martin Weinrotter, Josef Graf. Vienna University of Technology, Vienna. Mar 31, Stationary Gas Engines with H2 as Fuel or as Fuel Component. Dr. Guenther Herdin. CTO GE Jenbacher. 2. NOX Generation. Different Fuels. 0. Patents by Inventor Günther Herdin. Günther Herdin has filed for patents to protect the following inventions. Assignee: GE Jenbacher GmbH & Co OHG.

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Various data from publications and sales documentation of engine jenbaxher [10] G. A “cross flow type” was chosen as the flow concept, where the exhaust gas side is located on the outside of the engine. The existing 2-valve head showed increasing losses especially with the high mass flow rates of the lean-burn engine concept from BMEPs of 1.

This concept comes with the advantage that great heating value differences of the gas cause no problems in engine operation.

Herdin; Friedrich Gruber; Werner Henkel; Jenbacher gas engines have always distinguished themselves through their high degrees of efficiency and power densities [2]. Since the components used for the flow of mixture and exhaust gas can also be responsible to a great extent for flow losses, they are optimized after the herdij phase by means of CFD analysis.

It was even possible to increase the bore-specific flow coefficient of the exhaust port by menbacher This concept allows a relatively high degree of swirl with very good flow coefficients mysigma.


Biogas – Wikipedia Biogas is produced as landfill gas LFGwhich is produced by the breakdown of Biodegradable waste inside a landfill due to chemical reactions and microbes, or as digested gas, produced inside an anaerobic digester. The roller tappets shown in Figure 4 can be easily demounted in an upward direction.

The control of lean-burn combustion is based on the proven LEA. One of the most important points concerning the combustion of gas in an engine is the controlling of the combustion itself due to the methane number requirement.

Only then is it possible to ensure optimal values for burning durations and the variation coefficient. In spite of nenbacher BMEP of 2.

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal. Figure 7 shows a version of a piston used for tests. Due to the very conservative dimensioning of Series 3 it was possible to retain the same cylinder liner-to-liner distance. The actually possible process of combustion Seiliger cycle lies between both curves; in any case, for good degrees of efficiency one should strive for as large a constant volume portion as possible.


The advantage of this design is minimal liner deformations and a contribution additionally to less total weight.

The smaller the methane number, the higher the compression ratio can be chosen in order to get the best conditions also concerning thermodynamics.

As a result, besides its combustion chamber window, each cylinder has a knock sensor used for cylinder-specific control of ignition energy and knocking. The degree of combustion efficiency is primarily dependent upon the compression ratio and the process of combustion [4].

The development of combustion resulted on the basis of direct ignition usual for bore diameters under mm. Gas engine performance measurements First step to improve your engine.

After being transmitted via a light guide to the KLS 98 analysis unit, the signals are pre-processed into real-time and used for control and monitoring functions. Smart cogeneration plants with high efficient gas engines Author The figure below shows the development and output over time of the Jenbacher type 6 gas engine family. All you need to read in the other general jounals BMJ ; To keep deformations caused by ignition forces in the area of the valve seat rings minimal, a so-called double-deck construction was chosen and dimensioned with the aid of FE calculation methods [3].

It allows pressure ratios up to 4. The mixture coming from the compressor is then conducted via a diffusor to the 2stage intercooler, followed by the throttle. Furthermore, the specific power density of the new engine – The surfaces of the main bearings and con-rod bearings are inductively hardened, and the fillets have been additionally reinforced for increased safety. Factors that increase costs are the lower degree of efficiency, greater outlay for maintenance spark plugs, O2 sensors, care of the catalytic converter, etc.

This biogas plant utilizes leftover food from hospitals, hotels and canteens as well as organic residual GE Energy Jenbacher gas engines Austria Figure 10 shows the influence of the combustion duration with three different compression ratios compared with the theoretically found indicated degrees of efficiency. Theoretical preparatory work showed clear advantages in the implementation of this approach both with regard to thermodynamics and component dimensioning.

Gas Engines – Professional Gas Engine Solutions GmbH

Conversely, in the event heridn the utilization of lean-burn combustion, appreciably more energy must be provided. A further negative aspect is the insufficient stability of the emissions. This spark plug is designated as JW P4.


jsnbacher To apply the strategy of loss reduction consequently, it is thus necessary to ensure valve cross-sections that are as large as possible. In the case of inhomogeneities within the mixture formation rich zones can arise in the combustion chamber that can generate knocking combustion.

Günther Herdin Inventions, Patents and Patent Applications – Justia Patents Search

It replaces the multiple user names and passwords necessary to access subscription-based content with a single user name and password that can be entered once per session. Here it must be noted that in terms of utilized possibilities the 2-valve head was already in an advanced stage of development. GE Energy Jenbacher gas engines Austria In the mid’s the development of the LEA. Check Out Now Continue Browsing. For assistance or to subscribe, please contact us:. The direct comparison of laser ignition with conventional spark ignitions, without any measures implemented in favor of laser ignition high compression ratio, high turbulence ratioconsistently shows advantages in the case of laser ignition.

The cooling water pump is driven electrically and thus the engine can be warmed up prior to startup relatively easily by means of a heater located in the flow of cooling water.

One aspect concentrated on during development was in the area of optimal mounting and service-friendliness.

Sign into or create your free personal account Sign in via Shibboleth What is Shibboleth? The deck of the banks of cylinders does not extend to the cylinder head, but these are bolted to the crankcase via a spacing ring. The structure of the crankshaft was calculated in detail menbacher the FE method and optimized for the safety factors required for stationary engines.

For diesel engines this value is absolutely top-notch, but is connected with about fivefold higher NOx emissions. The main targets for the new engine were an increase in efficiency and a minimizing of maintenance costs. The cylinder heads are connected to the crankcase with 4 stud bolts, the bolt forces being effected through the controlled tightening method. Alongside this requirement, it is also necessary to produce the desired flow conditions in the combustion chamber through the intake ports.