The present invention discloses a special arrangement of internal components in a machine. The boxer crankshaft installation comprises a special geometry to a 180 V-engine. The engine is designed by special geometry of connecting rod, characterized in that horizontal section of two back to Back U-shaped profile in reverse direction, which are connected to the central panel. Moreover, compact bolt are inserted for eliminating the harmful forces that cause opening of the bolt head, thereby at tightening distorting flexible the torsion torque is transmitted. The head consists of five separate radial plates, which connected by a ring-like mantle. The camshaft is characterized in with the larger diameter. There is an oil hole on the base circle and it is lubricating oil coat to the surface of the tappet. A special plate of a spring is characterized in that it is made of low density, high strength material.

A mechanical device comprising, a gear rack having a first point and a second point; at least one piston attached either to said first point or said second point; said piston having an exterior surface and an interior surface; wherein said exterior surface is facing away from said gear rack and wherein said gear rack is attached to said interior surface; said gear rack being gyratingly coupled with an actuator shaft; wherein said gear rack is capable of moving in a substantially linear direction due to a force being applied to said exterior surface or said interior surface; and wherein said actuator shaft rotating due to the said motion of said gear rack; in another embodiment, at least one piston having an interior surface and an exterior surface; said inner side pivotingly mated with a connecting rod; said connecting rod having an opposing point B which is rotationally fastened to a counterbalance; said counterbalance rotating about an actuating shaft; a cylinder chamber having with a top breach housing said at least one piston; a pull shaft pivotingly connected to said exterior surface with pivoting joint and to a gear rack with a second pivoting joint; said pull shaft reciprocly advancing within said top breach; said reciprocation causing said gear rack to similarly reciprocate causing rotation of an input shaft; wherein said input shaft is mated with said gear rack through a one way gear box; and an accelerating spark plug, disposed in the body of said cylinder chamber for igniting combustible materials introduced into said cylinder chamber.

A mechanical device comprising, a gear rack having a first point and a second point; at least one piston attached either to said first point or said second point; said piston having an exterior surface and an interior surface; wherein said exterior surface is facing away from said gear rack and wherein said gear rack is attached to said interior surface; said gear rack being gyratingly coupled with an actuator shaft; wherein said gear rack is capable of moving in a substantially linear direction due to a force being applied to said exterior surface or said interior surface; and wherein said actuator shaft rotating due to the said motion of said gear rack; in another embodiment, at least one piston having an interior surface and an exterior surface; said inner side pivotingly mated with a connecting rod; said connecting rod having an opposing point B which is rotationally fastened to a counterbalance; said counterbalance rotating about an actuating shaft; a cylinder chamber having with a top breach housing said at least one piston; a pull shaft pivotingly connected to said exterior surface with pivoting joint and to a gear rack with a second pivoting joint; said pull shaft reciprocly advancing within said top breach; said reciprocation causing said gear rack to similarly reciprocate causing rotation of an input shaft; wherein said input shaft is mated with said gear rack through a one way gear box; and an accelerating spark plug, disposed in the body of said cylinder chamber for igniting combustible materials introduced into said cylinder chamber.

A crank cap assembly provided with a crank cap rotatably supporting a crankshaft includes a mass portion, two cap bolts fixing the crank cap to an engine body, and an elastic supporter disposed between the two cap bolts. The elastic supporter elastically supports the mass portion with respect to the crank cap in an axial direction of the crankshaft.

A crank cap assembly provided with a crank cap rotatably supporting a crankshaft includes a mass portion, two cap bolts fixing the crank cap to an engine body, and an elastic supporter disposed between the two cap bolts. The elastic supporter elastically supports the mass portion with respect to the crank cap in an axial direction of the crankshaft.

A pivoting bearing is provided for two connecting rods in a reciprocating piston of an internal combustion engine having two crankshafts which are driven via the reciprocating piston and the connecting rods. The pivoting bearing is received by piston bores of the piston and has gudgeon pin bores for mounting gudgeon pins for gudgeon pin eyes of the connecting rods. The pivoting bearing has radial bearing regions which are provided with the pin bores, are arranged on both sides of a center longitudinal axis of the reciprocating pistons, and delimit the gudgeon pin eyes in a manner which forms an intermediate space. To optimize the pivoting bearing, the bearing regions of the pivoting bearing are configured as cylinder bodies with a cup-like cross section, of which each cylinder body has a base wall and a bearing ring shell. The base walls of the two cylinder bodies extend at a spacing from one another, and the bearing ring shells which surround the base walls are guided away from the base walls in opposite directions. A plurality of connecting stubs run between the base walls in such a way that two connecting stubs are arranged on a side of the pivoting bearing, which side faces a piston crown, and extend at a relatively small spacing from ring sections of the gudgeon pin eyes, and in such a way that the connecting stubs and the ring sections have lubricating structures for lubricating connecting rod bearings of the connecting rods.

A pivoting bearing is provided for two connecting rods in a reciprocating piston of an internal combustion engine having two crankshafts which are driven via the reciprocating piston and the connecting rods. The pivoting bearing is received by piston bores of the piston and has gudgeon pin bores for mounting gudgeon pins for gudgeon pin eyes of the connecting rods. The pivoting bearing has radial bearing regions which are provided with the pin bores, are arranged on both sides of a center longitudinal axis of the reciprocating pistons, and delimit the gudgeon pin eyes in a manner which forms an intermediate space. To optimize the pivoting bearing, the bearing regions of the pivoting bearing are configured as cylinder bodies with a cup-like cross section, of which each cylinder body has a base wall and a bearing ring shell. The base walls of the two cylinder bodies extend at a spacing from one another, and the bearing ring shells which surround the base walls are guided away from the base walls in opposite directions. A plurality of connecting stubs run between the base walls in such a way that two connecting stubs are arranged on a side of the pivoting bearing, which side faces a piston crown, and extend at a relatively small spacing from ring sections of the gudgeon pin eyes, and in such a way that the connecting stubs and the ring sections have lubricating structures for lubricating connecting rod bearings of the connecting rods.

A piston is configured to be used in a cylinder bore of an opposed-piston. The piston includes a biaxial bearing. The biaxial bearing includes a biaxial wrist pin with a diameter configured to be less than half the diameter of the cylinder bore.

The disclosure provides rotary machines that include, in one embodiment, a rotatable shaft defining a central axis A, the shaft having a first end and a second end. The shaft can have a first hub disposed thereon with a plurality of cavities. At least one contour is slidably received into an arcuate cavity in an exterior surface of the hub. The contour has a convex outer surface that cooperates with an inwardly facing curved surface of a housing to form a working volume.

The disclosure provides rotary machines that include, in one embodiment, a rotatable shaft defining a central axis A, the shaft having a first end and a second end. The shaft can have a first hub disposed thereon with a plurality of cavities. At least one contour is slidably received into an arcuate cavity in an exterior surface of the hub. The contour has a convex outer surface that cooperates with an inwardly facing curved surface of a housing to form a working volume.