A spring-supported crankshaft coupling structure (2) used in an engine and coupled between a piston (51) and a crankshaft to enhance the output torque of the engine is disclosed to include a connector (53) axially movably coupled to the piston (51) by a sl...

An extendable coupling structure used in an engine and coupled between a piston and a crankshaft is constructed to include, a first connector pivoted to the piston, a second connector pivoted to the crankshaft, a hinge coupled between the first connector a...

A spring-supported coupling device (1) used in an engine and coupled between a piston (A) and a crankshaft (B) is constructed to include, a first connector (11) pivoted to the piston (4), a second connector (12) pivoted to the crankshaft (B), a rod member ...

A crankshaft coupling structure used in an engine and coupled between a piston (A) and a crankshaft (B) to enhance the output torque of the engine is disclosed to include connector (3) pivoted to the crankshaft (B), the connector (3) having a radially exte...

A spring-based crankshaft coupling structure used in an engine and coupled between a piston and a crankshaft to enhance the output torque of the engine is disclosed to include a first coupling member pivoted to the piston, the first coupling member having ...

A high-performance engine is constructed to include a cylinder (11), a piston (12) adapted to reciprocate in the cylinder (11), a crank (16), and a link (15) coupled between the crank (16) and the piston (12), the link (15) having a first end fixedly provi...

A high-performance engine is constructed to include a cylinder (1), a piston (2) adapted to reciprocate in the cylinder, a crank (7), a link (3) of substantially Z-shaped profile coupled between the crank (7) and the piston (2), the link having a through h...

A dual-piston engine is constructed to include a cylinder (1), a master piston (2) adapted to reciprocate in the cylinder (1), a supplementary piston (3) coaxially mounted in the master piston (2), a crank (6) a link (4) coupled between the crank (6) and t...

A high-performance engine is constructed to include a cylinder (11), a piston (12) adapted to reciprocate in the cylinder (11), a crank (16), and a link (15) coupled between the crank (16) and the piston (12), the link (15) having a first end fixedly provi...

A high-output engine is constructed to include a cylinder (11), a piston (12) adapted to reciprocate in the cylinder (11), the piston (12) being provided with a pivot pin (13), a crank (15) having a crank arm (151) and a crank shaft (152), and a link (14),...