DR-640 V0.2 Headless Rotary-Disc Petrol Engine

Generate a detailed, fully parametric engineering CAD assembly called: DR-640 V0.2 HEADLESS ROTARY-DISC PETROL ENGINE UNITS: millimeters MODEL STYLE: functional mechanical engineering CAD APPLICATION: compact motorcycle engine research prototype COORDINATE SYSTEM: - X axis = longitudinal main-shaft axis - Y axis = engine lateral width - Z axis = vertical - assembly origin = center of rotary core - all rotors concentric with X axis DESIGN OBJECTIVE: Create a compact 2-rotor spark-ignition rotary engine with no conventional pistons, connecting rods, crank throws, cylinder head, camshafts, timing chain, or poppet valves. Use: - 2 circular rotors - 2 blind working cavities per rotor - 4 working chambers total - fixed intake ports - fixed exhaust ports - stationary spark plugs - liquid cooling - pressure lubrication - rotor cooling oil jets - replaceable stationary combustion/sealing inserts - common output shaft Target effective displacement: 640 cc Target compression ratio: 10.0:1 Target swept volume per working chamber: 160.00 cc Target minimum chamber volume: 17.78 cc Target maximum chamber volume: 177.78 cc ================================================== A. COMPLETE ENGINE ================================================== Create the complete engine first. Maximum overall envelope excluding: gearbox, radiator, exhaust pipes, airbox: Length X = 340 mm Width Y = 280 mm Height Z = 290 mm Target bare rotary-core envelope: Length X = 280 mm Width Y = 180 mm Height Z = 180 mm Arrange major components along the X axis in this order: left end cover left main bearing left stationary seal carrier left stationary hot/working plate Rotor A central stationary working structure Rotor B right stationary hot/working plate right stationary seal carrier right main bearing right end cover Generate: external view, transparent view, longitudinal cutaway, transverse cutaway, exploded assembly. ================================================== B. MAIN HOUSING ================================================== Create a multi-piece split housing from aluminum. Main housing envelope: X = 280 mm Y = 180 mm Z = 180 mm Nominal outside cylindrical envelope around rotor region: 175 mm diameter Initial CAD rotor cavity diameter: 133 mm Minimum general structural wall: 8 mm Bearing support thickness: 15 mm Fastener boss minimum thickness: 14 mm Minimum M8 bolt-center distance from external free edge: 12 mm External corner radii: minimum R5 Internal structural fillets: minimum R3 Housing must separate into machinable components rather than one complex monolithic casting. Provide removable: left end cover, right end cover, working plates, hot-face inserts, seal carriers, sump. Housing material placeholder: 6061-T6 aluminum for prototype.

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