Various solutions have been developed to propel various vehicles resp. to change the direction of movement, including impulse-momentum drive systems Principle of the impulse-momentum drive systems is to drive an energy accumulating sub- unit with high inertia by a special way, bringing into move and periodically changing movement of which is altering the kinetic system composed of connecting sub-units and its status of move, as in case of a properly dimensioned and developed device the moving energy accumulating sub-unit results a change in the position of centre of gravity within the mass to be moved, consecutively this can be accelerated, retarded or steered without utilisation of external forces.

Samples for a mechanical device of this kind are the registered Patent Specification US 3.653.269, the published Patent Specification WO 86/05852 and the registered Patent Specification HU 213.979. Deficiency of the referred solutions is however that a movement of swinging components can be generated only by moving the energy accumulating sub- unit, and the propulsion force generated by the energy accumulating sub-unit is limited, thus these devices have no practical importance.

The goal of the invention is to create a drive-unit for use in impulse-momentum drive systems, which can avoid deficiencies of the so far known versions, and enables the dislocation of the mass to be moved in one direction, further it is capable to generate higher impulse-momentum, i. e. its propulsion performance is more favourable.

The basic concept of the invention is created by the perception, that if specially arranged energy accumulating sub-units independent from each other with limited movement under specified conditions are placed in a properly developed carrier unit, and the carrier unit is connected to the mass to be moved by a suitable way, then the goal can be achieved.

According to the set goal, the propulsion unit subject of invention connected to impulse- momentum drive systems-featured by a carrier frame, at least one axis of rotation connected to the carrier frame, an energy input organ connected to the drive-unit, further by a connecting unit enabling tilt together with the mass to be moved, a body of rotation- shaped energy accumulating sub-unit connected to the axis of rotation by a bearing sub-unit enabling rotation however limiting sense of rotation and the axis of rotation of the energy accumulating sub-unit and the longitudinal axis of the connecting unit of basic frame are parallel to each other-is designed in such a way, that two or more axis of rotation is applied between the two opposite faces of the carrier frame, the energy accumulating sub- unit has one energy accumulating member and other energy accumulating member, one sense of rotation limiter device adapted to one energy accumulating member and the other sense of rotation limiter device adapted to the other energy accumulating member have reversed limitations of sense of rotation, and distances between one axis of rotation and the connecting member and between the other axis of rotation and the other connecting member are equal.

A further feature of the invention is that one of the energy-accumulating units is assembled of primary and secondary flywheel profiles with different diameters, and the other energy- accumulating unit is similarly assembled of primary and secondary flywheel profiles with different diameters.

A possible design of the propulsion unit is when the primary flywheel profile and the secondary flywheel profile of one of the energy-accumulating units are fit to one of the axis of rotation in reciprocating order, while the primary flywheel profile and the secondary flywheel profile of the other energy-accumulating unit are fit similarly in reciprocating order to the other axis of rotation however in reverse order to the one energy-accumulating unit, and the primary flywheel profile of one energy-accumulating unit and the primary flywheel profile of the other energy-accumulating unit are arranged rack-shaped, engaged in each other with clearances.

In a disparate execution of the invention a retarder unit is applied between the energy- accumulating member of one energy-accumulating unit and the mass to be moved. The retarder unit has a friction face extending from the mass to be moved, and this friction face is pressed temporarily to at least a part of the primary flywheel and/or the secondary flywheel of the energy-accumulating member of one energy-accumulating unit or of the primary flywheel and/or the secondary flywheel of the energy-accumulating member of the other energy-accumulating unit.

At an advantageous execution form of the propulsion unit the limiter device of the direction of rotation is free-running. Symmetry-axis of the axis of rotation and the longitudinal axis of the connecting unit are in the same plane.

Advantage of the propulsion unit as invented is that in case of application of the energy- accumulating sub-unit with special arrangement in the carrier frame, it will be possible to make the dislocation of the mass to be moved unidirectional, to reduce the size of swinging, resp. to eliminate these, further to increase the efficiency of movement.

It can be considered as an advantage that the propulsion unit is assembled of parts manufactured with conventional production methods and with simple tools, and its assembly and maintenance can be performed easily.

Further advantageous feature is that the modular structure of the propulsion unit enables to create various power ratings with identical outline dimensions, and replacement as required.

The detailed functional description of the invention on the basis of the drawing of a working specimen is as below. The drawings are: Fig. 1: part-sectional side elevation of the propulsion unit as invented Fig. 2: part of view from direction II Fig. 1 is illustrating a possible form of the propulsion unit 10. It is clearly seen that the carrier frame 11 is a rectangular side-casing metallic frame structure with parallel opposite faces.

Axis of rotation 12 and axis of rotation 12b are applied between the opposite longer sides 11 a of this carrier frame 11. Axis of rotation 12 and axis of rotation 12b are bearing the energy-accumulating sub-unit 30, which is composed of one energy-accumulating member 31 and other energy-accumulating member 32 at this variant. The one energy-accumulating member 31 is assembled of a primary flywheel profile 31 a with bigger diameter"D"and of a secondary flywheel profile 31b with smaller diameter"d"in a way, that the primary flywheel profiles 3 la with diameter"D"and the secondary flywheel profiles with diameter "d"are varying each other regularly.

The other energy-accumulating member 32 fit on the axis of rotation 12b, is assembled of a primary flywheel profile 32a with bigger diameter"D1"and of a secondary flywheel profile 32b with smaller diameter"dl", where diameters and masses of"DI"and"dl"are identical to those of the primary flywheel profile 31 a with bigger diameter"D"and of the secondary flywheel profile 3 1 b with smaller diameter"d"of energy-accumulating member 31.

It is clear from Fig. 1 that both the primary flywheel profiles 3 1 a and secondary flywheel profiles 31b of the one energy-accumulating member 31 and the primary flywheel profiles 32a and secondary flywheel profiles 32b of the one energy-accumulating member 32 can be made of one solid piece or composed of disc-shaped parts. The rotation of the one energy- accumulating member 31 of the energy-accumulating sub-unit 30 on the axis of rotation 12 is enabled by the bearing sub-unit 20 with the one limiter of sense of rotation 21, while the rotation of the other energy-accumulating member 32 on the axis of rotation 12b is enabled by the bearing sub-unit 20 with the other limiter of sense of rotation 22. At the present execution variant the one limiter of sense of rotation 21 and the other limiter of sense of rotation 22 are free-running devices, their duty is to make only uni-directional rotation each of energy-accumulating member 31 and energy-accumulating member 32 possible, and to prevent their rotation in the other direction.

The only difference between the one limiter of sense of rotation 21 and the other limiter of sense of rotation 22 is that they make rotation possible or prevent it in adverse directions.

Fig 1. depicts also that primary flywheel profiles 31 a of one energy-accumulating member 31 and primary flywheel profiles 32a of the other energy-accumulating member 32 are located within the energy-accumulating sub-unit 30 in such a way, that each primary flywheel profiles 31a are facing with secondary flywheel profiles 32b, thus a secondary flywheel profile 32b is protruding with due clearance between two adjacent primary flywheel profiles 31 a. This arrangement results a rack-shaped connection of the one energy- accumulating member 31 and the other energy-accumulating member 32 of the energy- accumulating sub-unit 30. The advantage of this arrangement is that the energy- accumulating sub-unit 30 requires a favourable limited room in spite of the relative high masses.

Carrier frame 11 is provided with a connecting member 14, which is an axle-pin extending from the two longer side of the frame at the current version, with the role to create a connection enabling rotation between the propulsion unit 10 and the holding structure 51 of mass 50 to be moved. Part of the carrier frame is the energy input organ 13 as well, which is connected to the propulsion unit 40 on Fig. 2 by a connecting arm marked with thin lines on Fig. 1 and Fig. 2.

An important circumstance with respect to the function is that the symmetry axis 12a of axis of rotation 12 and the longitudinal axis 14a of the connecting member 14, further the symmetry axis 12c of axis of rotation 12b should be parallel to each other, and that the distance T1 between the symmetry axis 12a of axis of rotation 12 and the longitudinal axis 14a of the connecting member 14 and the distance T2 between the symmetry axis 12c of axis of rotation 12b and the longitudinal axis 14a of the connecting member 14 should be the same.

Going on Fig. 2, it is clear that the symmetry axis 12a of axis of rotation 12, the symmetry axis 12c of axis of rotation 12b and the longitudinal axis 14a of the connecting member 14 is in one plane, expediently in the symmetry plane 15 of the drive unit 10.

Fig. 2. depicts also that the holding structure 51 of mass 50 to be moved is complemented by a retarder sub-unit adjacent to the drive unit 10, having friction surfaces 81 with external sides 82, matching to the one energy-accumulating member 31 and the other energy- accumulating member 32 of the energy-accumulating sub-unit 30, i. e. to diameter"D"of one primary flywheel profile 3 la and to diameter"D1"of the other primary flywheel profile 32a.

It can be seen from Fig. 2. that due to the one limiter of sense of rotation 21 of the bearing sub-unit 20 applied between the one energy accumulating member 31 and the axis of rotation 12, the one energy accumulating member 31 can rotate in one direction 60 only, while due to the other limiter of direction of rotation 22 of the bearing sub-unit 20 applied between the one energy accumulating member 32 and the axis of rotation 12b, the one energy accumulating member 32 can rotate in one direction 70 only.

In the function of the drive unit as invented, the drive unit 40 attached to mass 50 to be moved, forces the connecting rod 41 connected to the energy input organ 13 of the carrier frame of propulsion unit 10, into alternating movement. Due to dislocation of the connecting rod 41, the carrier frame 11 turns around the longitudinal axis 14a of the connecting member 14. On the effect of this tilt the one energy-accumulating member 31 on the axis of rotation 12 rotates in direction 60 around the axis of rotation 12 maintaining its position, while the other energy-accumulating member 32 on the axis of rotation 12 can not rotate around the axis of rotation 12b due to the other limiter of sense of rotation 22, thus it will rotate around the connecting member 14 together with the carrier frame 11, maintaining its relative position to the carrier frame. During this dislocation of the carrier frame 11-as illustrated on Fig. 2.-the left hand side of the carrier frame 11 tilts upwards, and the right hand side tilts downwards around the connecting member 14.

This movement of the carrier frame 11 is lasting as long, as-in the given phase of movement-the primary flywheel profiles 31 a of energy-accumulating member 31 of the energy-accumulating sub-unit 30 will butt up on the external side 82 of friction surface 81 of the retarder sub-unit 80. After reaching this position the direction of dislocation of connecting rod 41 will change and tilts the carrier frame 11 now in the other direction around the connecting member 14. During the dislocation of the carrier frame 11 in the opposite direction now the rotation of the energy-accumulating member 31 around the axis of rotation 12 is prevented, while the other energy-accumulating member 32 can rotate free around the axis of rotation 12b in the direction 70. During dislocation of the connecting rod 41 of drive unit 40, the primary flywheel profiles 32a of the free-rotating energy- accumulating member 32 will butt up on the external side 82 of friction surface 81 of the retarder sub-unit 80 in this phase of the cycle, and a part of the energy accumulated in the other energy-accumulating member 32 of the energy-accumulating sub-unit 30 will be transformed into energy bringing the mass 50 to be moved in move.

Following the butting up of the other energy-accumulating member 32 on the friction surface 81, the connecting rod will dislocate in the opposite direction, i. e. downwards in the position illustrated on Fig. 2. again, and enables the rotation of the one energy-accumulating member 31 in the direction 60, while the rotation of the other energy-accumulating member 32 around the axis of rotation 12b is prevented by the other limiter device of direction of rotation 22.

Resulting from the fact that the one energy-accumulating member 31 and the other energy- accumulating member 32 of the energy-accumulating sub-unit 30 performs always adverse movement, with respect to the propulsion unit as a whole, a tractive effort in one direction is exerted in every minute, which brings the mass 50 to be moved always in the same direction, so the alternating-advancing movement of the mass 50 to be moved, experienced with usual propulsion systems will be eliminated.

It must be noted that the propulsion unit 10 can be multiplied with application of a proper carrier structure 51, i. e. more then one, but expediently an even number of propulsion units can be used for the dislocation of a mass 50 to be moved, applied symmetrically on the mass 50 to be moved. Obviously in this case care must be taken that the one energy-accumulating members 31 and the other energy-accumulating members 32 should tilt and rotate in the same pace.

The drive unit as invented, can be utilise well in impulse-momentum drive systems to perform movements in a constant direction.

List of references 10 Drive sub-unit 11 Carrier frame 11 a Longer side 12 Axis of rotation 12a Symmetry axis 12b Axis of rotation 13 Energy input organ 14 Connecting part 14a Longitudinal axis 15 Longitudinal plane of symmetry 20 Bearing sub-unit 21 One limiter of sense of rotation 22 Other limiter of sense of rotation 30 Energy accumulating sub-unit 31 One energy-accumulating member 3 la Primary flywheel profile 31b Secondary flywheel profile 32 Other energy-accumulating member 32a Primary flywheel profile 32b Secondary flywheel profile 33 Clearance 40 Propulsion sub-unit 41 Connecting rod 50 Mass to be moved 51 Holding structure 60 One sense of movement 70 Other sense of movement 80 Retarder sub-unit 81 Friction surface 82 External face T1 Distance T2 Distance D Diameter d Diameter D1 Diameter dl Diameter