DIESEL AIR LIMITED
Engine
Overview: |
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Diesel Air Ltd has designed and developed a |
Engine management with single lever
operation is greatly simplified with both carb heat and mixture controls
eliminated. The DAIR-100 will operate on diesel fuel or jet A1 and this with
the added reliability of liquid cooling (shock cooling avoided in the
descent) contributes to the low operating costs. The Diesel Air Two Stroke
Diesel has a power to weight ratio comparable with modern petrol engines. Why
delay. Switch to DIESEL. |
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Operating
Principles Of The Opposed Piston Engine |
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The twin cylinder opposed piston
engine has two pistons in each cylinder with the combustion chamber formed
between the crowns of the pistons. It eliminates the need for a cylinder
head, camshaft and associated valves and has in effect two half length crankshafts
linked by a gear train driving a centrally mounted propellor. The cylinders
are ported at each end with one ring of ports opened by the air piston
supplying the fresh air charge, and the other opened by the exhaust piston
and connected to the exhaust system. |
Gas flow through the cylinder is in
one direction (uniflow) and leads to more efficient scavenging, the name
given to the gas exchange process, than is normally achieved in a convential
loop scavenged engine. The DAIR-100 has a centrifugal compressor supplying
this scavenge air which also provides a degree of supercharge improving
engine power. Power can be increased further with the installation of a
conventional exhaust gas driven turbocharger in series with the compressor.
Lubrication is by high pressure oil with dry sump and feeds plain main and
connecting rod bearings. Fuel injection is by hydraulically governed
mechanical pump feeding injectors in each cylinder. |
Technical Data: |
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NUMBER OF CYLINDERS............ NUMBER OF PISTONS................ NUMBER OF INJECTORS............ BORE...................................... STROKE................................... DISPLACEMENT........................ COMPRESSION RATIO............... DRY SUMP CAPACITY................ FUEL GRADE............................ ENGINE MOUNTS...................... DRY WEIGHT........................... INJECTION SYSTEM.................. CONTROL................................ RATED RPM (Propellor)............. POWER................................... ALTERNATOR........................... STARTER
................................ PROPELLOR FLANGE................. |
2 4 4 80mm 90mm 1810cc 18 : 1 5 Litres AVTUR / DIESEL 4 POINT 92.7 Kg DIRECT SINGLE LEVER 2500 100 HP 12V / 20a (Optional 12V / 60a) 12 volt SAE 1
/ ARP |