CLASSIFICATION:
(1) In accordance to Cylinder Axis: Engine can be vertical or horizontal.
(2) In accordance to action of steam: Can be single acting or double acting.
(3) In accordance to number of cylinders: Can be single or multi cylinder (Compounded).
(4) In accordance to method of steam exhaust: Condensing or Non condensing. In condensing type engines the engine discharges into a condenser where exhaust is converted to water.
(5) In accordance to speed of crankshaft: Low (< 100 rpm), Medium (100 - 200 rpm ) and High
(> 200 rpm).
(6) In accordance to Valve gear used: Slide Valve (D type) / Poppet valve.
(7) In accordance to type of service: Stationary / Mobile
(8) In accordance to cylinder Arrangement: Tandem Type / Cross Compounded.
(9) In accordance to Method of Governing: Throttling Steam Engine / Automatic Cut off engine.