Design Drawings of a Venturi Mixer for Self-Manufacture (Example)
Fig. 1: Venturi mixer parts 1 Mixer
body (tube), 2 Bore for venturi ring holder bolt, 3 Bore for butterfly valve
shaft, 4 Bore for gas supply pipe connection (brazed, welded), 5 Venturi ring, 6
Calibrated bores for gas inlet, 7 Gas supply ring channel, 8 Groove for seal
ring (O-ring), 9 Bore for venturi ring holder bolt; all dimensions according to
calculations and engine inlet size (refer to Chapter 6).
Fig. 2: Venturi mixer parts, continued.
10 Connection flange, 11 Bore for connection bolts to engine and air filter, 12
Bore for connection of mixer body (brazed, welded), 13 Wing nut for fixing the
butterfly valve shaft, 14 Washer, 15 Rubber/plastic seal ring, 16 Butterfly
valve, 17 Washer fixed to butterfly valve shaft, 18 Butterfly valve shaft cum
control lever, 19 Small bolts for fixing butterfly to shaft.
Fig. 3: Venturi mixer assembly
Venturi seal ring (0-ring), 21 Venturi holder bolt and nut, 22 Gas inlet valve,
23 Gas supply