US1081696A - Magneto-electric generator. - Google Patents

Description

B. P. 8; F. I. REMY. MAGNBTO ELECTRIC GENERATOR.

PPLIOATION FILED 313.17, 1910.

Patented Dec. 16, 1913.

3 SHBETS-SHEET 1.

"Aw V m m NR .8 WE DWI 'l J 0 FT ATTORNEY.

B. P. & F.1i. REMY. MAGNETO ELECTRIC GENERATOR.

APPLIGATIOM TILED FEB. 17,1910.

Patented Dec. 16, 1913.

3 SHEETS SHEET 2.

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WYYNESSES:

INVENTORS. Be n ail-min P.

an d

A TTOR/VEY.

, B. P. & F 1. REMY. MAGNETO ELECTRIC GENERATOR.

Patented Dec. 16, 1913.

3 S S-SHEET 3.

LVV 0 Benjamin 1. e and FTCln k I- NT R A TTORNEY.

COPY

UN ED STATES PATENT OFFICE;

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n". l i ms mfiibm a s' s BY f sK A SOUTH CAROLINA.

7 Specification 6f lettefs'fie tent. Application med Feb'luary 17,1910. Serial lie-M4302.

ss'rG'NmENTIs, T0 sU'M'TEn nrjnc'rmc'nn oomrnmr, A- CORPORATION OF MAGnETo-finno rmo GENERATOR.

iPatent'ed-Dec. '16, 1913.

Be it iniow'n' thet we, Biennium P. Remy and FRAIQK I. REMY, of Anderson, county of Madison, 'a'nd'Sttte of Indiana, have invent "ed a-ceftain"n'ew' and useful Magneto-ElectrieGenemtor; and We do hereby declare "that' the following is a fuil, cleiir, and exact description therebf, reference being had to the'eccompanying'drawings.

This'invent'ion relates to the disposition et the pints of an electric generator in such manner afsto produce an efficient and easily constructed apparatus, and has been made with particular reference to the c0nstr1ic-' apart, between which the Winding 'is a'r-f tiondf a mhghetoelectric-gencrator for ignition purpnses.

The chief feature of 'the invention consists in nidunfingghe'm'fmature in a non-revoluble position r'e tive to the rotary inductors,

sziidarmature including pole pieces spaced IangeisnidnTmature being out' of the field of rotationof-the inductors;

Another feature consists in the mounting of mid armature so estopermit of its posi' 'tion' being changed; and providingan interrupter that is. controlled by the change of position of the armature whereby the time 'of interruption may bevmed.

The nature of the invention will be understoodfibmithe following description and claims and the accompanying drawings.

In .thejdrawin'gs Figure 1 is an elevation df-Yo'ne. endjof the'generator with portions 0f the circuitbreaker. shown in vertical 'transveise'section, altered posltions of parts 'of the device being shownby dotted lines. Fig. 2 is a vertical transverse section through Fig. 1 on the dotted line 22 of Fig. 3-. Fig. 3 isa centrzil-vertical longitudirml section through'th'e deyice. Fi 4 is a diagram of the circuits by which t e ignition of an internal combustion engine may be produced by this generator, but the particular arrangexnent of circuits used is ho veter not essential to the invention. 'Flg.

5. is-nsectionthrou'gh a part of the device showing the arts-in one position. Fig. 6

is the same s owing theinductor operated slightly farther than in Fig. 5. Fig. 7 is the same showing the pai'tslin a different po- 'sition from Fig. 5. .Fig. 8 is the same as Fig. 7 with the inductor moved slightly farther than in Fig. 7. g

In the drawings herein there is shown a base 10 ,fo'rtli'e generator which is ma'de prefembl'y of non mzfgrfetic material, and there are no" upwardly extending sides, as

the inner set'of magnets lI rest upon the base.

The outer set of magnets 12 do not extend as low as the base, as indicated in Figs. 1- and. 2 but these features are immaterial.

There are ends 13ektendingupfrom end integral-with th'e'b'as'e, which to Ytherfiith removable ortions 1'4 above, 7 ng's for putwardiy extending tuhui'er tenmg portions '1'!) and 1615f the end plates 17 and 18', respeetively, so that said plates rock. There are field ina'g'net 'file pieces 19 secured" stationary on the. base andadja ce'nt the lower end of the inner s'et'of magnets l'1',"seeFig. 2. The induetor-sheft 20 entends through and has hearings in the beefing port' bns 1'5 and 16-, justrefei'red to,

see -Fig. .3; This shaft carries'two' supports" 21'forthe imitates-22. Said supports 21 -are madepreferabiy of nbn-megnetiemhterial, Whiiethe inductors are madefof megnetie nmteriahnndthe two sets of inductors and supports aresp'eceH-fnpart, ohe b'eing 1'6- "Gated ad acent ca ch endplate-l'f and 18.

- inductors-- 22. endniso' to theshafl 20, nnd.

together constitute the revolving member of the gmieraton- Thennnntu're'consists "0f the core '25 diet is secured to the-end. plates 17 and-'w'so'as to rock v therewith concentrically with the shaft 20.- It carries nt'eaeh end Eid'edent said end pin-tbs,- pole pi'ecs 26, which extend down rather close to the induetors2'2, and

the adjacent sui-facesnf'the pole ieees are curved concavely and noncent' ri cah t'o' cbnform to the curvs' ture of the inductors, see Fig. 2;. The core ilfi and pole ieces 26'sii'e pi'eneshnve substantially the same length longltudinaiiy' of the core 25 as the inductors As'mteble winding 27 is mounted on the cbre 25 between the pole pieces'nnd reg istering with the space between the'inductors on the inductor shaft. The complete pieces and'en'd plates 17 and '18" is'relatively and ntrmny stetionaryrthht is; the armetare is not revblvedor'mov ed by the'revoliir tion of theinduetor shaft or any "other' revolving me'mber. But the armature is not stationary altogether;- as" it is cnpabl'e of being oscilmeiroek or inevednsindicated armatfire, including the core, winding, nine lie 5 peak.

Integral with the end plate 18 and bearin extension 16 therefrom there is a timer disk 30 which carries an insulated terminal 31 --adapted to be touched by the contact lever 32, which lever is normally pressed toward said terminal by a spring 33 lying between said lever anda post 31 on the timer disk, see Fig. 1. The lever is actuated by the double cam 35, which is secured to the inductor shaft adjacent the disk 30. .There fore, at each revolution of the inductor shaft said cam actuates the lever 32 and makes and breaks the circuit twice. Since the switch portion of the circuit breaker, namely, the terminal 31 and lever 32 are mounted in connection with the oscillatory or rocking armature co struction, when the armature is rocked or s ifted, say from the position shown by full lines in Fig. 1 to that shown by dotted lines, the position of thelever 32 relative to the cam 35 will be modified, and thereby the time at which the circuit is made and broken is varied.

In Fig. 4 there is shown a diagram of circuits illustrating the arrangement of parts of the generator and electrical apparatus external thereto by which ignition may be produced. In that diagramAO. is the primary'winding of an induction coil and 4:1 is the secondary winding, the latter having relatively many turns when compared with the former, and 42 is the core'thereof.

43 represents the spark plugand 4-1 the condenser.

27 represents the armature winding and from that a wire 45 runs to the primary winding in the induction coil, and a wire it runs from the primary winding to the terminal 31, and a wire runs from the circuit breaking lever 32 to the winding 27 of the armature. The terminals of the secondary winding 41 are connected to the respective terminals of the spark plug.

The action of the generator is as follows:

When an-inductor 22 is in proximity to an armature pole piece 26 and the field magnet pole piece 19, as indicated ire-Fig. 2, it forms between said pole pieces a path for magnetic flux. The inductors 22 aref'so placed that when one armature pole piece 26 is thus connected with onefield magnet pole piece 19, the other armature pole piece 26 is con-- nected to the other field magnet pole piece 19 at the other end of the device." A path for magnetic flux is thus, formed starting from the field magnet, through a field magnet pole piece, an inductor, an armature pole piece, the armature core, the other armature pole piece.'the other inductor. the other field magnet pole piece, to the field magnet. The

' versed.

-thesecondary inductors 22 are so disposed that when the inductor shaft and associated parts revolve through half a revolution, the direction of the flux through the armature core is' re- The reversals of flux in the armature core occasioned by the revolution of the revolving partsserve to induce an elec tromotive force in the windings 27.

In'order to produce ignition, the current from the winding is led through the primary of the induction coil and at a suitable instant interrupted by the separation of the contact lever 32 and the contact 31, occasioned by the action of the cam. This sudden stopping of the current in the primary of the induction coil induces in thereof an electromotive force sulliciently great to jump the gap in the spark plug. The condenser serves to diminish the spark formed between the insulated contact 31 and the contact lever at the instant of separation. To vary the time of interruption and consequently the time at which the spark occurs in the spark plug, the immature is shifted about the axis of the shaft, as indicated by'full and dotted lines in Figs. 1 and 2, thereby moving the contact lever as hereinbefore described.

, Although but two inductors 22 and two 95 drawings-the invention is not limited to this armature pole pieces 26 are shown in the rious characters in the various windings. I,

Also it is immaterial whether the field magnct pole pieces 19 are separate from or intcgral. with the magnets, as they act as onev means. The same is true of the armature core and armature pole Pieces 26.

In order to make the mode of operationobtain a satisfactory spark it is desirable u Hwiucluced clecti-omotirc t'n'ce posses. s a.high value. '1 7 Referring to l 5. the rear inductor 22, which is uppermost, forms a connection between the rear armature pole piece 26 and that the circuit lnmkcr open the circuit at its the right hand field magnet pole piece 19.

The magnetic. liux through the armature eta-e is small, on account of the magnetic C11- a at the same speed as the crank shaft. order to vary the time of sparklng, the disk teale9 cuit being open between the front-armature pole piece and the front inductor. By the time that theifnductors have turned through a, small angle, to the position shown in Fig. 6, the front inductor has closed the magnetic circuit between the front armature pole piece and the left hand field magnet pole piece, thereby closing the magnetic circuit and allowing the flux through the armature core to increase rapidly. This rapid increase. in the flux results in a high value of; the induced electromotive force. Thus, by shifting the armature, the most desirable point for the interruption of the circuit by the contact points is also shifted.

In use, the gearing between the magneto and the engine is such that the cam interruptsthe circuit every time that a charge is to be ignited. If, for example, the engine be of t-he'four cylinder, four cycle type, making two explosions per revolution of the crank shaft, the magneto should be drivpn n is turned about the axis of the shaft,

- thereby changing the position of the inductors at which theocircuit is interrupted, but this movement-of the disk 30 causes the armatur; to perform a. similar movement, thereby changing the most favorable instant for the interruptionof the circuit to correspond with the change of the instant of interruption.

Although the description here given assumes that the front inductor is on the left, and the rear one on the right, it is evident that similar conditions occur when the opposite is the case, one half of a revolution of the shaft. later, but with the flux in the core.

opposite direction through the armature There are therefore two points during the revolutiop of the inductors at which a good spark may be produced.

What, we claim-as our invention and de; sire to secure by Letters Patent is:

,1. An electric generator including a rotary inductor, two sets of pole pieces, one set stationary and the other set angularly adjustable with relation to stationary pole pieces, and a winding in fixed relation to the adjustable pole pieces and adapted to be,

acted upon by the magnetic flux passing through said pole pieces.

2. A magneto electric generator including a rotary inductor, two sets of pole pieces,

one set stationary and the other set angu- -larly adjustable with relation to stationary polepiecesi, a winding in fixed relation to the adjustable pole pieces and adapted to be acted. upon by the, magnetic flux passing through sai p -ie pieces, and an interrupter controlled by the adjustable pole pieces whereby the time of interruption isovaried when the position of the pole pieces is varied.

3. A magneto electric generator includg ationary field mag ts, r tary inductor, a non-revoluble armaturev osclllatable concentrically of the inductor and having pole pieces, a winding in fixed relation to the pole pieces, and an interrupter controlled by the position of the armature whereby the time of the interruption may be varied.

4:. A magneto electric generator includ. ing a. field magnet, fixed field magnet pole pieces, a rotary ihductor shaft, inductors mounted so as to rotate with the shaft, .ar

mattu'e end platesmscillatably mounted on each end of the shift, a core secured to and between said. plates and parallel with the shaft, pole pieces on said core, the two sets ofpole pieces being in position to be bridged by the inductors, windings on the core, and an interrupter controlled by the movement of said armature plates, whereby the armature may be rocked on the inductor shaft and the time of interruption varied.

5'. A magneto electnc generator including a field magnet, fixed field magnet .pole pieces, a rotary inductor shaft, inductors mounted so as to rotate with the shaft, armature plates oscillatably mounted on each end of the shaft, a core secured to and between said plates and parallel with the shaft, pol'e pieces on saidcore the two. setsof pole pieces being in position to be bridged by the inductors, windings on the core, a disk secured to one of said armature plates so as -to' oscillate therewith, a terminal mounted on said disk, a spring-controlled contact lever pivoted on said platein position to engage said terminal, and cam-like means mounted on said shaft in position to actuate the lever thereby making and breaking the circuit.

6. A magneto electric generator including a rotary inductor, a fixed field magnet energizing the said rotary inductor,-a set of pole pieces angularly adjustable about the axis of said inductor, and an armature winding in fixed relation to the said adjustable pole pieces and adapted to be acted upon by the msgnetic flux passing through said pole pieces. 7. A magneto electric generator includ--.

ing' a fixed'field magnet, a rotary inductorshaft, inductors mounted so as to rotate'with said shaft and energized by said fined field magnet, and an armature structure compri s.

ing end plates oscillatably mounted concentric'ally with each end of the shaft armature pole pieces carried by and between said plates and therewith adjustable angularly I about said inductor, armature windings in i fixed relation to said pole pieces, and an interrupter controlled in the movement of said armature plates, whereby the armature structure may be rocked on the inductor 10 shaft and the time of interruption varied.

9. -An,ignition dynamo havingv the following'elements: a pair of fixed field poles, an armature structure carrying a generating coil, and a rotor adapted to carry flux from the field poles to said armature, a shaft for 30. an armature structure carrying a generating coil, a rotor adapted to carry flux from the field poles to the armature, a shaft for said rotor, a pair of separated journal.v boxes or I sleeve bearings for saidshaft, rigid mountings connecting the armature structure therewith, so as to bridge across the same, a pair of interrupter contacts and a mounting therefor rigidly connected to one of the journal boxes with the contacts in proximity to the rotor shaft, and a cam rigidly secured on said shaft adapted to'open and close said contacts as the rotor and shaft rotate, the arrangement being such that the armature structure may be adjusted with respect to the rotor so as to vary the time of production of the peak E. M. F. in the generating 'coil, and in such adjustment the contacts will be simultaneously and automatically adjusted with respect to the cam on-the shaftso as to open and close said contacts at the desired instant.

In witness whereof, we have hereunto affixed our signatures in the presence of the Witnesses herein named. j

BENJAMIN Pl REMY.

, FRANK 1, REMY.

lVitnesses:

W. R. POLAND, S. E. STURGIS.

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