GB2386672A - Self-drive apparatus that converts rotary motion into linear motion of the apparatus - Google Patents

Abstract

The self-drive apparatus (fig 1) has rotating assembly drive discs (7, figs 7 and 8) that are rotated by a motor (10, fig 7). The rotation of the drive discs cause linear reciprocating motion of masses (m1-3, fig 6), the masses are also rotated by motors (17, fig 9). The masses have rotating spheres (19, fig 10) located on the guide surface (15, fig 10). The combination of the linear reciprocating motion and the centrifugal force generated by the rotating spheres enables constant contact of the pistons (14, fig 10) with the drive discs and produces a directional impulse (fig 19) that results in linear motion of the self-drive apparatus.

Description

SELF-DRIVE APPARATUS

FrELD OF THE INVENTION This invention relates to an apparatus for creating thrust in a desired direction from variable reciprocating straight-line motion.

BACKGROUND OF THE INVENTION

Various designs have been proposed throughout the years around the world for translating rotary motion to linear motion. Most of Hem have US patent such as: No. No. 5,966,986' 5,937,698; 57791,188; 5,685,196; 5, 473957; 5,388,470; 5,388,469; 5,156,058; 5,150,626; 5,129,600; 5,123,292, 5,OgO,26O, 5,088,949; 5,054,331; GB 2343937 etc. Such structures do not appear to be capable of self-drive.

The present invention is a structure, which produces directional force using variable reciprocating straight-line motion of mass, which produces linear motion in a manner, which requires no outwardly thrown inertia members.

This invented object is cable of producing inner, unbalanced inertia force, wllicli acts off objects own body frame, resulting in self-motion of that object.

A preferred embodiment of the invention will now be described with reference to Be accompanying drawings in which: FIGURE 1 is an isometric front view of the Self-lDrive Apparatus (SI)A); FIGURE 2 is an isometric cutaway front view showing the relevant components inside of the SDA; FICIJRE is a Wont cutaway view showing the relevant components inside the SDA; FIGURE 4 is a plane view of B-B in Figure 3 (bellow the drive assembly disc); FIGURE 5 is a section view of C-C in Figure 4; FIGURE 6 is a simplified cross section A-A through base unit referred to Figure 4 showing position of the pistons of mass inside the base unites; FIGURE 7 is an isometric front view of the drive assembly disc, which controls the mass motion on the zl, z2 and z3 axes; FICi{JRE 8 is a front and isometric right view of the drive disc; FIGURE 9 is an isometric view of the base unit with engine and belt; FIGURE lO is an isometric cutaway view of the structure of the base unit; FIGURE 11 is a left and left isometric view of the guide wheel; FIGURE 12 is a front and right isometric view of the piston; FIGURE l] is a mathematical graph, which represents the shape of the single drive disc on its circumference in FIG 7 & FIG 8; FIGURE 14 is a mathematical graph, which represents path of motion of first piston of mass at the time "I"; FIGURE: 15 is a matlieiiatical graph, which represents paw of motion of the group of pistons of mass at the tune "I". Note that location of the

3 t centers of pistons of mass on the axes zl(t), z2(t), z3(t) is the same (mathematically) in the columns and rows in FIG 6 FI(}URE 16 is a mathematical graph, which represents the axial components of velocity along al, z2, z3 axes respectively of FIG 15. This is the first derivative for FIG 15; FIGURE 17 is a mathernatica1 graphs which represents the axial components of acceleration= This is the second derivative respectively of FlC; I5, FIGURE 18 is a mathematical graph, which represents the resultant acceleration of FIC] 17; FIGURE 19 is a mathematical graph, which represents the resultant impulse.

This graph is crucial in the calculations presented in this invention; FIGURE 20-23 are the mathematical graphs, which represent the conventional search of moving body as at FIG 15-19 but for resultant center of moving centers of mass: FIGURE 20 is a mathematical graph, which represents location of resultant center of moving mass on the axes at the time 't'' cr(t3, FIGURE 21 is a tiatlieatical gibe, which relji; esents the velocity otresultant center of m-og mass at the time "t"; FIGURE 22 is a mathematical graph, which represents the acceleration of resultant center of moving mass at the time "I"; FIGURE 23 is a mathematical graph, which represents the resultant impulse of resultant center of moving mass at the time "t"; FIFURE 24 is a mathematical graph, which represents the impulse of moving mass ml, m2, m3 respectively.

4 - Referrmg to the drawings the SELF DRIVE APPARATUS (SDA) comprises items arts) fol10w: ITEM QlJAN NAME OF ITEM NO. TITY.

1 4 Apparatus wheel 2 I Front cylindrical body frame 3 3 Side board of body frame 4 Side board of body frame 5 3 Side coordinating board of body frame 6 1 Main shaft 7 3 Drive disc 8 3 Stabilizing bearings 9 3 Contact bearings 10 1 Main motor l l 8 Main shaft bearings l 2 9 Base unit bearings 13 9 Guide wheel 14 9 Piston 15 9 Guide surface 16 9 Belt 17 9 Base unit motor 18 9 Base unit motor bearings 19 36 Rotated sphere 20 9 Cylindrical stabilizer

There arc distinguished 8 modules <if structure in the SOA: 1 body frame: consists of items (l, 2, 3, 4, 5, FIG 1 and FIG 2) 2 drive assembly discs: consists of items (6, 7, 8, FIG 7) 3 base unit: consists of items (9, 13, 14, 15, 19, 20, FIGlO) 4 main motor: consists of item (l l, FIG 7) base unit motor: consists of items (161 17, FIG 9) 6 bearing system: consists of items (l 1 j FT(3 7) and (l 2j 18;1;T(] 9) 7 variable reciprocating straight-line moving mass assembly: consists of items (9, 14, 19 FIG lO). It is represented by symbol "m" and is located the resultant center of gravity of those items.

8 spring system: consist ofitems(l5, l9' FIG lO) To understand the concept behind this invention, consider First: a shape of the single 'drive disc' (7, FIG 7 and FIG8), its mathematical equation Z(t), X(t), Y(t), L(t) and FIG 13.

The Drive discs' are attached to the main shaft (6, FlG 7), in such a way that first drive disc is in positiol Odeg, second drive disc is rot-amd 120deg and e third one is rotated 240de-g (FIG 7) Those rotated 'drive discs' are represented b r mathe-maticai graph (lily 15). Such 'drive discs' (7, FIG 7) with 'beings' (S. 11, FIG 7} are attached to the 'main she' (6, FIG 7) define "drive assembly discs". To provide rotation this 'drive assembly discs' is attached to the 'main motor' (10, FIG 7). The rotating 'drive discs' are in constant contact as on (FIG 3 and FIG S) with 'variable reciprocating straight-line moving mass assembly' through the 'bearings' (9, FIG l 0).

During rotation Drive discs' cause at the same time, the variable reciprocating straight-line motion of die group of 'variable reciprocating straight-line moving mass assembly' respectively to the shape of 'drive disc' on its circumference.

Second: a structure of the single Base unit' (FIG 10), which consists off: contact bearing' 9, 'guide wheel1 13, 'piston' 14, 'guide surface' 15, 'rotating sphere' 19 and 'cylindrical stabilizer' 20. The 'variable reciprocating straight-

line moving mass assembly' which consists of items 9, 14 and 19, rotates on the zI or z2 or z3 axis respectively, driven by Guide wheel' 13. The 'bearings' (12, FIG 9) and 'cylidrica1 stabilizer' 20 mainfaifig stabilized position of rot-atitig items. Rotating 'guide wheel' is driven by 'base unit motor' (17, 18 FIG 9) tough the 'belt' (16, FIG 9). The shape of 'guide wheel' (13, FIG 11) and piston' (14, FIG 12) allows the 'piston' to rotate whilst maintaining its variable reciprocating straightAine motion at the same time. One end of the 'piston ' ( 14, FIG 12) is formed in such a way that it accommodates the 'rotating spheres' (19, FIG10). This allows a radial motion of the spheres and their rotation at the same time. Because of rotation of the spheres (19, FIG 10) on the spherical guide surface' (15, FIG 10), the element of centrifugal (d'Lembert) force, push the rotating- 'piston' (14, FIG 10) all the time which cause motion of the said variable reciprocating straight-line moving mass assembly' in one direction.

This element of force is proportional to the square of angular velocity (mathematical calculation not shown in this invention) Third: arrangement of the 'base unit' and 'base unit motor' with shear bearings'. They are located on the 'side coordinating board of body Dame' 5, on the radius "Rd" and angle distance 120deg (FIG 4) Fourth: note that such assembly self drive apparatus consists off three rows and three columns of 'base units' (FIG 6), which are identical from the mathematical point of view. All rotating elements are symmetrical thereby they produce lateral (d'Lembert) forces, which have no bearing on the whole apparatus.

Based on what said ah - cthc seif-driv apparatus (FIG 1) in particular comprises of rotating 'assembly drive discs' specifically formed on its circumferences (7, FIG 7 & FIG 8) which cause at the same time the variable reciprocating straight-line motion of the group of mass: ml, m2, m3 (ml, m2' m3, FIG 6) along zl, z2, z3 axes (zl, z2, z3, FIG 6) respectively. Dunng the reciprocating straight-line motion' 'rotating spheres' l9, FIG lO) located on the spherical 'guide surface' (15 FIG 9) produce the internal forces, that enables constant contact of the 'pistors' with the 'drive discs'. Mentioned above, groups Amasses produce all the time one directional impulse (FIG 19) which causes the linear motion of the self-drive apparatus to go in the desired direction.

Such Self-rve Apparatus (SDA) would find extensive use in the transportation industry as a propulsion motor.

Below are- shown ma-matica1 calculations with reference to the invention. syMsoLs AND ITS MúANlNGS x, y, z = Cartesian coordinates z1, z2, z3, Z = overspread axes z1(t), z2(t), Z3(t) - coordinates of centers of mass. on zl, z2, z3 axes at time-""" Lsec] 7(t), X(t), Y(t) = coordinates defining shape of the C drive disc' Rd. = radius of the 'drive disc' be = maximum value for location of"ml, m2, m3" on the zl, z2' z3 axes [m] b4 - minimum value for location of"ml, m2, m3" on the zl' z2, z3 axes [m3 R = (b4-bO)/2 half distance along path of motion - radius defining reciprocating straight-line motion of center of mass on the z1, z2, z3 axes in corresponding equation [m] N _ revolution per unit time of 'drive disc' [No.lsec] n = revolution per unit time of center of mass [No./sec] t _ time [see] = n*2*T angular velocity defining "forth" motion of centers of mass on the zl, z2, z3 axes [rad/sec] = 6*.5- angular velocity detinng "back" motion of centers of mass on the z 1, z2, z3 axes Lrad/sec] = N*2*n angular velocity for 'drive disc' [radlsec] L(t) = y*t*R length of drive disc circumference at the time "t" lm] vz1(t), vz2(t), vz3(t) velocities along zl, z2, z3 axes having corresponding significance [m/sec] pz1(t), pz2(t), pz3(t) acceleration along zl, z2, z3 axes having corresponding significance Lm/sec^2] PZ(t) - resuitant acceleration im/sec^2] m1=m2=m3 mass of reciprocating motion along zl? z2, z3 axes (represents mass of items (9 FIG12; 14 FIG12; 19 FIG 103 and is located in the center of the gravity of its items tweightlg] |kg] g = acceleration of gravity t9.8lm/sec^2 p(i), Imptt) = impulse cr(t) = resultant location of the center of mass (ml7 m2, m3) on the Z axes at time "t" [m]

vcr(t), per(t) - resultant linear velocity and acceleration of the center of mass The graph shown in FIG 13 was drawn from the results of the calculations Chow Z(t):= bO+ _ (1 - cos(6 I)) if O < t < 2 be + 2 (1 cosign I+ 2)) if 2'n 2.n be+ 2 À(1 -cos(& tax)) if 2 t < 2 be+ 2 (1 -cos(, 8 the)) if-< t <-

Z(t) - s an equation representing the shape of the single drive disc represents the axis Z of revolution for drive discs on it circumference. 1 X(t):= Rd cos(y À t) Y(t):= Rd si4y t) X(t) & Y(t) - are the equations representing coordinates on the X and Y plane for Z(t) L(t):= À t Rd L{t) - is an equation representing a length of drive disc circumference on the X and Y pie'

The graphs shown in FTG l 4 and FIG l 5 were drawn from the results of the calculation be z1(t):= bO- (1 -cos(6 t)) if O < t 5 2 bO + 2 (1 - cos( t + 2 4) if 2 n 5 t 5 2 n bO + ( I - cos(6 À t +)) if-S t S-

2 2 n 2 n bO + b4 - bO À ( 1 - cos(f t + Jt)) if-< t _ 2 2 n 2 n z2(t):= bO+ À(l -cos(p Àti n)) if O < t S 2 bO b4 - bO (1 - cos(6 t)) if 2. n 2 n b4 -bO ( ( 3 7)) if 3 < t < 5 bO + b4 À ( l - cos(8 t +)) if 2 S t 2 n z3(t):= bO + b4 bO (l - cos( t+ 2)) if O c t 5 2.n bO+ -(1-cos(6 t+7)) ifS t<-

bO + À ( 1 - cos(,B À t)) if-S t c-

bO + b4 ( I _ cos(S t)) if 2 S t 5 2 n bO+ b4 bO (1 -cOs( t+ -)) if 2 S t 5 2 n

The graph shown in GIG 17 was drawn from the results of the calculation below pz1(t):=-zl(t) pz2(t):= 2z2(t) pz3(t):= 2Z3() dt2 dt dt The graph shown in FIG 18 was drawn from the results of the calculation below P2;(t) := pz1(t) + pz2(t) + pz3(t) The graph shown in FIG 19 was drawn from the results of the calculation below := 0.0' 0 2 n 2.n imp(i):= J m PZ(t)dt imp(t):= JO m.PZ(tdt The graph shown in FIG 20 was drawn from the results of the calculation below m zl(t) + m. z2(t) m z3(t) cr(t) = 3 m The graph shown in FIG 21 was drawn from the results of the calculation below vcr(t) :--cr(t) dt The graph shown in FIG 22 was drawn from the results of the calculation below per(t) _ d cr(t) dt2 The graph shown in FIG 23 was drawn from the results of the calculation below i.= 0.0, Tm 1:= 3 Àm pcr(t)dt Imp(t):= 3 ÀmÀpcr(t)dt 10 2 n 2 n Jo Lo

Claims (4)

1. A self-drive apparatus comprising a wheeled body frame, and rotatable drive assembly discs, and base unit, and main motor, and base unit motor, and bearing system, add variable reciprocating slailt-lle lilU-V'-0g lilaSS assembly, and spun" system.

2. A self-drive apparatus as claimed in Claim 1 where the drive assembly

discs include one or more drive disc attached to the main shaft.

3. A self-drive apparatus as claimed in Claim 1 or Claim 2 where during rotation drive disc cause at the same time, through the contact bearing, the variable reciprocating straight-line motion of the group of variable reciprocating straight-line moving mass assembly respectively to the shape of drive disc on its circumference.

4. A self-drive apparatus as claimed in Claim 2 or Claim 3 include Free or more variable reciprocating straight-line moving mass assembly that are locating symmetrically to the circumference of the drive disc.

5 A self-drive apparatus substantially as herein described and ilustrated in the accompanying drawings.