Reciprocating Engines Market By Fuel (Petrol, Diesel, LPG & CNG, and Hybrid), By Number of Cylinders (Single Cylinder and Multi-cylinders), By Application (Automotive, Aircrafts, Marine, Combined Heat and Power, Industrial Manufacturing & Processing, Energy and Utilities, Landfill and Biogas, Agriculture) - Growth, Future Prospects & Competitive Analysis, 2018 – 2026