MOC-157730+MOC-164704 Three Cylinder Pneumatic Engine & Manual Air Pump Building Blocks Set（352PCS）

Features:Designed and licensed by Nico71, this engine has a 3-cylinder configuration with a 3x 120° crankshaft for automatic starting. Each cylinder acts on a switch which operates the next cylinder, thus eliminating the need for a flywheel. Of course, the addition of a geared flywheel reduces jumps. Constructed with a scotch yoke mechanism instead of the classic linkage/crank system, and with a direct activation switch to keep the size small (only 9.6 cm high). It doesn't require any modification parts and can be run with just one pump (slow and erratic) or faster/smoother with 4 pumps or other constant air sources;-4x pump-Use a LEGO compressor according to the specs-Use a electrical compressor like automotive compressor, industrial or electrical pump with ball needle.-Use a hand pump with ball needle. 2, parts introduction: the use of environmentally friendly ABS material, contains a total of 352 parts, and each part of very high quality, precision casting processing molding, matchi