Piezoelectric Fuel Injector For A Diesel Engine [1600×1268]

Bahco bag xs650

Select-O-Speed transmission of 1964 Ford 5000 tractor. [2741x2150]

Source: http://i.imgur.com/iFuOueX.jpg

15.06.30

Precision cut gears roll off specially designed gear-cutters daily in the Bors plant of a large rubber factory, 1941

Source: https://imgur.com/oK23nXi

Variable Compression Engine by Infiniti [8,000 × 10,647]

Source: https://openpics.aerobatic.io/

Crankshaft (Evergreen Aviation Museum, Oregon)

Source: https://imgur.com/Hl8jb

[3024X4032] General Electric TurboSupercharger cutaway. Link to more images in comments.

Source: https://openpics.aerobatic.io/