Aerospace Engines A to Z
Aerospace Engines A to Z

Updated: 06-Sep-2018

The company Ferry Inc. in California made a radial engine of eight cylinders but with double eccentric or cams instead of the crankshaft.

Ferry engine without crankshaft
"Ferry engine without crankshaft"

-As we see in the engine cut-out, it shows a cam lobe and the follower roller of the upper cylinder, with a short connecting rod.

-In turn, all the connecting rods are connected by braces that makes the rollers always keep in contact with the cams.

-In this project there were engines with four, eight, twelve and sixteen cylinders, and powers from 280 to 1,120 hp

Engines of FERRY

Model: 8 cyl. radial, “double-cam system”

Arquitecture: 8-cylinder Radial
Cooling:
Total Displacement:
Bore / Stroke:
Power: 280 HP
Weight:

Other details:
Ferry engine without crankshaft

"Ferry engine without crankshaft"

The author of this edition of Aeroengines AtoZ, through Aeroteca, collaborated on Version 2 of this video, which is presented here.

To understand the operation of the connecting rods, the 1929 Continental R 670 single-cylinder engine was chosen.

A demonstration of Version 3, improved at the author's suggestion, is also available on YouTube at a later date. This version shows bronze valve guides, improved valve spring movement, and the split crankshaft counterweights and front bearing balls also move.

The design is from Juan Soler, Sant Cugat, Barcelona

Below we show a flash of version 3

Counting also with the coloboration of JMC of Enginys Mecanics in Mataro, Barcelona