Zoche in München

Following these almost forgotten examples we are developing a new piston engine for general aviation: the ZOCHE aero-diesel.
Compared to the opposed-cylinder, spark ignited aircraft engine, ZOCHE aero-diesels offer many advantages:
- The engine has half the specific weight, half the frontal area and burns less fuel. This leads to remarkable improvements of aircraft parameters: payload, range and speed will be markedly better
- Environmentally progressive - low CO2 emissions due to low fuel consumption, low NOX due to two stroke principle, low soot and unburnt hydrocarbon emissions due to modern high pressure injection. Diesel and jet fuels contain no toxic substances like lead, benzene or scavengers. No fuel availability problem wordwide
- Very low noise emission due to two-stroke and turbocharging.
- No electromagnetic interference.
- Very low vibration level - the 4 cylinder bank can be 100% balanced for all rotating and reciprocating inertias. Torque vibration is minimal due to one power pulse per cylinder per revolution.
- Full aerobatic pressure lubrication.
- Greatly reduced fuel costs - ZOCHE aero-diesels burn fewer lb/hp hr; Diesel or jet fuel has more lb/gallon and costs less per gallon.
- Easy to operate - one power lever only. No mixture, no alternate air, no aux fuel pump, no magneto switches, no mandatory temperature, boost or power restrictions.
- Good reliability and low maintenance cost due to the lack of a reduction drive, the very low parts count and the use of reliable Diesel components. Streamlined installation without any hoses.
- High inflight reliability - no carburetor-icing, no magneto or spark-plug problems, no vapor lock. Turbine inlet temperature is so low that it needs no monitoring. Even cylinder head temperatures are not critical.
- Safe electrical power - directly driven overload protected starter-generator - no belts, gears, or bearings.
- Reduced 'hot and high' problems - sealevel power at least up to 9,000 feet.
- Reliable starting and inflight restarting through powerful and highly efficient starter-generator. Cold start and acceleration to 2,500 rpm within a second has been demonstrated.
- Dramatically reduced fire hazard - Diesel fuel has a much lower flammability. Exhaust manifold temperature is about 720°F lower.
- No rubber hoses: all ducts for oil, hydraulics and manifold air are integrated into the castings.
The very compact ZOCHE aero-diesel incorporates the latest cylinder technology as well as refinements like tungsten counterweights and full aerobatic pressure lubrication. The ZOCHE aero-diesel's high efficiency reduces the amount of rejected heat, thereby minimizing cooling air requirement. Cooling problems are further reduced by the fact that there are no areas in this Diesel engine which demand such exact cooling as the cylinder head of a spark ignited engine. Charge air pressure is generated by a combination of a highly efficient mechanical blower and a newly developed advanced turbocharger, reducing power loss at altitude. The quadruple flow compressor scroll is integral to the monobloc intercooler, resulting in a very high efficiency of the turbocharger and intercooler installation. The intake manifold is an integral part of the crankcase casting. The fuel injection pump together with its feed pump, the fuel filter and all connecting plumbing are integrated into the crankcase assembly, further reducing the parts count and improving reliability. The integrated dry sump oil reservoir features a sight glass for easy inspection.