Significance

General Electric turbocharger model B-22 was fitted externally to a Pratt & Whitney R1930 14 cylinder twin wasp radial air-cooled engine for the supply of air at an increased pressure to the carburetor intake. This enabled the B-24 Liberator to maintain a maximum 1300HP at takeoff from sea level to 30,000 ft. ceiling and at high altitude.

Physical description

Round metal supercharger with inlet and outlet.

Inscriptions & markings

General Electric turbo super charger. GE Ser. No. 872144 FW, A Setting 6, Assembly OD WW 8456556, Model 75-B22-A6
AF Contract or Purchase Order W33-038AC-1699, Spec. H-285022-22
Schenectady Made in US