An unbalanced shaft is provided that has a center of mass eccentric to its rotational axis to generate a shaft unbalance. The unbalanced shaft includes a bearing journal having a variable width throughout its circumference, and a multi-row cage having rollers which roll on inner raceways arranged on an outer lateral surface of the bearing journal. The rollers and inner raceways define a load zone, within which a width of each of the inner raceways is greater than an effective length of the rollers idling thereon. At least one of the inner raceways, which extends circumferentially for 360 degrees, has a width throughout that is greater than an effective length of the rollers rolling thereon. For sections outside of the load zone, at least one of the inner raceways has a width less than the effective length of the rollers that roll thereon.

A roller for a conveyor system comprises a nonlinear bore hole to facilitate retention of the roller on a roller-receiving portion of a corresponding shaft. A nonlinear bore hole comprises a central cylindrical portion for receiving a roller-receiving portion of the shaft and unaligned slots in communication with the central cylindrical portion to prevent migration of the roller from the roller-receiving portion.

Eccentric centrifugal force is a fictitious force that is centrifugal in nature but is focused and directional. It is generated by having the axis of rotation which is off-center or eccentric. The generating device can move three dimensionally and overcome other fictitious forces such as gravity or inertia. The generating device can be attached to other objects causing the other objects to move with the ECF device. Thus for example, an ECF device attached to a vehicle, such as a car, could move a car. Because ECF is three dimensional, an ECF device in a car can allow a car to fly. The ECF generator herein has a hub with a hole in it, a shaft that goes through the hole and a weight on the end of the shaft. The hub is off-centered (eccentric) in a race. The race forces the spindle to slide back and forth through the off-centered hubs thus providing an eccentric centrifugal force.

The present invention provides a rotary engine comprising: a housing provided with three lobe accommodation parts; a rotor which is provided with two lobes continuously accommodated in the lobe accommodation parts, has an intake storage part communicating with an intake port provided on the front surface-side, and has an exhaust storage part communicating with an exhaust port provided on the rear surface-side; an intake-side housing cover provided with an intake hole communicating with the intake storage part; an exhaust-side housing cover provided with an exhaust hole communicating with the exhaust storage part; and a crankshaft, wherein the flow of an exhaust gas into a stroke chamber during an intake stroke is reduced by preventing the exhaust storage part, at a portion of a section in which the exhaust port is open, from communicating with the exhaust hole during the intake stroke.

The present invention provides a rotary engine comprising: a housing provided with three lobe accommodation parts; a rotor which is provided with two lobes continuously accommodated in the lobe accommodation parts, has an intake storage part communicating with an intake port provided on the front surface-side, and has an exhaust storage part communicating with an exhaust port provided on the rear surface-side; an intake-side housing cover provided with an intake hole communicating with the intake storage part; an exhaust-side housing cover provided with an exhaust hole communicating with the exhaust storage part; and a crankshaft, wherein the flow of an exhaust gas into a stroke chamber during an intake stroke is reduced by preventing the exhaust storage part, at a portion of a section in which the exhaust port is open, from communicating with the exhaust hole during the intake stroke.

An eccentric shaft assembly includes a first eccentric shaft including an interior surface forming a recess therein, an exterior surface, at least one first fluid inlet extending between the interior surface and the exterior surface, at least one first fluid outlet extending between the interior surface and the exterior surface. The eccentric shaft assembly further includes a second eccentric shaft disposed in the recess of the first eccentric shaft that includes a second bearing surface engaging the first bearing subassembly opposite the first bearing surface and at least one first fan blade for rotating about an axis of rotation to force a fluid to enter the recess through the first fluid inlet(s) and exit the recess through the first fluid outlet(s), to lubricate and/or cool a bearing subassembly disposed between the first eccentric shaft and the second eccentric shaft.

An eccentric shaft assembly includes a first eccentric shaft including an interior surface forming a recess therein, an exterior surface, at least one first fluid inlet extending between the interior surface and the exterior surface, at least one first fluid outlet extending between the interior surface and the exterior surface. The eccentric shaft assembly further includes a second eccentric shaft disposed in the recess of the first eccentric shaft that includes a second bearing surface engaging the first bearing subassembly opposite the first bearing surface and at least one first fan blade for rotating about an axis of rotation to force a fluid to enter the recess through the first fluid inlet(s) and exit the recess through the first fluid outlet(s), to lubricate and/or cool a bearing subassembly disposed between the first eccentric shaft and the second eccentric shaft.

A gear train is contained within the housing of an actuator, is coupled to a movable component outside the housing, and includes a first gear and a second gear. A bend shaft is fixed to an internal surface of the housing and supports the first and second gears. The bend shaft includes a lower portion, a crosspiece, and an upper portion. The lower portion has a first end coupled to the housing and a second end offset from the first end, and extends from the first end to the second end along a first direction. The crosspiece is oriented orthogonal to the first direction and extends from the second end of the lower portion. The upper portion has a third end coupled to the crosspiece and a fourth end offset from the third end, and extends from the third end to the fourth end along the first direction.

A gear train is contained within the housing of an actuator, is coupled to a movable component outside the housing, and includes a first gear and a second gear. A bend shaft is fixed to an internal surface of the housing and supports the first and second gears. The bend shaft includes a lower portion, a crosspiece, and an upper portion. The lower portion has a first end coupled to the housing and a second end offset from the first end, and extends from the first end to the second end along a first direction. The crosspiece is oriented orthogonal to the first direction and extends from the second end of the lower portion. The upper portion has a third end coupled to the crosspiece and a fourth end offset from the third end, and extends from the third end to the fourth end along the first direction.

A generator (100) and/or machine (110) generating mechanical energy and functioning on the principle of exploitation of an energy allowing the existence of centrifugal forces (Fc) on masses (M) being displaced in rotation along an eccentric trajectory (150) within a system (130, 132, 166, 170, 190, 210) driving a progressive or sudden variation of their radius of rotation, principle of a generator of centrifugal forces from an eccentric with variable radius (100).