Lorraine 14A Antarès
| Company type | Aircraft engine |
|---|---|
| Industry | Aerospace |
| Founded | 1930s |
| Products | Radial aircraft engines |
The Lorraine 14A Antarès was a French radial aircraft engine with 14 cylinders, developed and operational during the 1930s, producing approximately .
Design and development
The Antarès employed a traditional two-row radial configuration comprising 14 cylinders. Its cylindrical aluminium alloy crankcase was designed with an integrated diaphragm to support the front bearing of the crankshaft, accompanied by a cam-gear housing containing double track cam-rings. Positioned at the front, the reduction gear was enclosed beneath a rounded cover.
Steel cylinder barrels were mounted to the crankcase using flanges and were sealed with aluminium alloy cylinder heads secured by screws, which featured cooling fins. The pistons, crafted from aluminium alloy and fitted with floating gudgeon pins, connected through two master rods and twelve auxiliary rods to a single forged crankshaft equipped with bolt-on balance weights.
Each cylinder contained one set of overhead intake and exhaust valves actuated by roller tappets running on double track cam-rings aligned concentrically with the crankshaft, driven via epicyclic gearing. The majority of Antarès units employed standard aspiration through a single carburettor.
Variants
- 14A
- 14Ac
- 14E
- 14L