Opposed piston, compression ignition engine with single-side mounted crankshafts and crossheads

An opposed piston engine, comprising:

• a plurality of cylinders aligned in a row, each cylinder having intake and exhaust ports;
• a pair of opposed pistons slidably disposed in each cylinder;
• two crankshafts positioned beneath the row of cylinders;
• the crankshafts having axes of rotation running in a direction that is perpendicular to a direction in which longitudinal axes of the cylinders run;
• a plurality of first linkages, each coupling a respective piston near an intake port only to a first crankshaft;
• a plurality of second linkages, each coupling a respective piston near an exhaust port only to a second crankshaft;
• and,
• a crosshead assembly for each of the first and second linkages.

An opposed piston engine, comprising:

• a frame;
• a row of cylinders attached to the frame.
• each cylinder having intake and exhaust manifolds;
• the intake manifolds being aligned near a first edge of the row of cylinders and the exhaust manifolds being aligned near a second edge of the row of cylinders opposite the first edge;
• a pair of opposed pistons slidably disposed in each cylinder;
• bearing supports in the frame, beneath the row of cylinders;
• a pair of crankshafts received in the bearing supports;
• the axes of rotation of the crankshafts lying in a plane that is spaced apart from and parallel to a plane in which longitudinal axes of the cylinders lie;
• a plurality of first linkages, each coupling a respective piston near an intake manifold only to a first crankshaft;
• and
• a plurality of second linkages, each coupling a respective piston near an exhaust port only to a second crankshaft.

An opposed piston engine, comprising:

• one or more cylinders;
• a pair of opposed pistons slidably disposed in each cylinder;
• two crankshafts positioned to one side of the one or more cylinders so that the axes of rotation of the crankshafts lie in a plane that is spaced apart from and parallel to a plane in which the longitudinal axes of the one or more cylinders lie;
• the crankshafts including respective mutually-engaged drive gears;
• and,
• a linkage between each piston and a respective one of the crankshafts;
• a crosshead assembly for each linkage.