US948483A

US948483A - Inductor-generator for ignition purposes.

Info

Publication number: US948483A
Application number: US413069A
Authority: US
Inventors: Henry Joseph Podlesak; Tesla Emil Podlesak
Original assignee: Individual
Current assignee: Individual
Priority date: 1901-09-25
Filing date: 1908-01-28
Publication date: 1910-02-08
Anticipated expiration: 1927-02-08

Description

H. J. PODLESAK & T. E. POD-LESAK.

RATOR FORIGNITION PURPOSES. APPLICATION FILED JAN. 28, 1908.

IN DUGTOR GENE Patented Feb. 8, 1910.

HENRY JOSEPH PoDLEsK,

OF CHICAGO, ILLINOIS, .AND TESLA EMIL PODLSAK, OF

MORRISTOWN, NEW JERSEY. i

-INEUCTOR-GENERATOR FOR IGNITION PURPOSES.

Specification of Letters Patent.

Patented Feb. s, 1910.

Original application led September 25, 1901, Serial No. 76,559. Divided and this application filed January' 28, 1908. Serial No. 413,069.

To all whom it may concern:

e it known that we, HENRY JOSEPH- lonLnsir and TEsLA EMIL PoDLsAK, residing at Chicago, 1n the county of Cook and State of Illinois, and Morristown, county of Morris, State of New Jersey, respectively,

have invented certain new and useful lmprovements in Inductor-Generators for Ignition Purposes, of which the following is a specification, reference being had thereln to the accompanying drawings.

This invention relates to ignition apparatus for -internal combustion engines.

The subject matter herein presented is for afdivision of the subject matter presented in our application, Serial No. 76,559, filed September 25th, 1.901, for inductor generators for ignition purposes.

One of the objects of our invention is to provide an inductor alternator which is readily adaptable to all classes of internal combustion motors, such as automobile, marine, and stationary motors, and to the special requirements of each class, and is readily adjustable for varying the period of generation of maximum electro-motive force relative to the position-of a -piston within an engine cylinder.

Another object of our invention is to so connect and correlatean electric generator to the ignition apparatus of an internal combustion motor, that the ignition apparatus and the said generator' are simultaneously adjusted for the purpose of causing a. spark to occur earlier or later in the stroke of the inotor piston. This simultaneous adjustment' of the electric generator with the ignition apparatus is for the purpose of insuring that the generator will-produce the requisite electro-motive force for any position of adjustment of' the ignition appa-I ratus. l

Still another object of our invention 1s to `arrange and mount an electric generator in j the fly wheel of an engine 1n such manner that the parts of the generator will be completely protected.

Figure 1 is a side elevation of a motor fitted with an inductor alternator embodying our invention, the fly wheel of the motor being shown partly broken away and partly in section. Fig. 2 is a section on the line 2 2, Fig. 1. Fig. 3 is an end elevation of parts of the igniter apparatus, detached. Fig. t-is a side view of the parts shown in Fig. 3.

In the drawings-A. represents an internal combustion motor of any well known construction.

B indicates the crank shaft bearing on the fly wheel side of the motor, the crank shaft itself being represented by 18.

F is the fly wheel of the motor having an inwardly Aextending flange F.

l indicates a permanent magnet, preferably horseshoe or U-shaped in form. It is composed of as many magnet sections, arranged in series, as may be required to establish the desired density of magnetic field.

4 is a frame, preferably of 'non-magnetic material, and employed to position and support in proper relation to each other the normally stationary parts of our inductor alternator. In the drawings, this supportingiand positioning frame is mounted upon the crank shaft bearing B, and is capable of adjustment about the axis of the said crank shaft.

. 9 are clamp pieces or cleats arranged to bear against the outermost magnet section ineach series, and 7 are bolts or screws eX- tending through said cleats and into the frame 4, and adapted to clamp or bind the said frame and permanent magnet together.

21 are pole pieces composed of afsuitable number of punehings. or laminae. A pair of these pole pieces is preferably used, assembled,.one at either-*side of a suitable center piece or spacing piece 10 of non-magnetic.

material, and suitabl bolted thereto by mea-ns of bolts 5. This non-magnetic spacin'piece 10 is suitably secured to the -frame 4 y meansof bolts or screws 6 and l1,-

-(shown in dotted lines), so as to hold the sev - laminated pole pieces 21 in close magnetic Contact with the ends orpoles of the permapolar faces polar faces,

' nent magnet-sections- Each one ofthe pole pieceshas a air of

polar projections

12, 12, the former o which serves as a coil core upon which a winding or coil 2O of insulatedwire is' slipped, and to which the said coil is suitably secured.` The coil core 12 on each pole piece is spaced by a suitable air gap from the adjacent polar projection 12 on said pole piece. The outer faces or polar faces of the said

polar projections

12, 12, are suitably shaped to con` form to the path of travel of a suitable inductor, hereinafter described. The -polar faces on the polar projections 12 are designated by 2, and hereinafter referred to as exciting polar faces, and the polar faces on the polar projections 12 are designated by' 3, and hereinafter referred to as generating polar faces.

19 is an inductor, refera'bly formed of punchings or laminae of suitable metal. lThis inductor is adapted to be rotated vso as to have one of its faces pass over and-'elo ly adjacent to the exciting polar faces 2 andthe generating polar faces 3', by mere mechanical clearance, or, in other words, as close to said as mechanical conditions will permit. We have shown the said inductor 19 as secured to and carried by the flange F of the'fly wheel F of the motor. The polar faces 2, 3, and the face of the inductor which passes adjacent tothem are shaped to the arc of a circle' struck from the axis of the crank shaft as a center. Normally the lines of 1 magnetic force emanate in a scattered way frqm all sides of the ma net and for about one-half of its length rom its free ends, and some of these lines of force emanate from the pole pieces. The inductbr 19, in operation, first spans the exciting polar` faces 2 and causes the concentration of a dense flow of magnetic lines of force,'a substantial magnetic short circuit, between the polar projections 12, 12', of the laminated pole pieces. The inductor then moves across the air. gap between the exciting polar facesand the generating polar faces and causes a rapid and substantially complete diversion of the magnetic flux density, first concentrated across .the exciting polar faces, into and through the coil cores 12 and across the generating'polar faces, so as to establish a circuit across the V generating polar faces. The inductor the'n leaves the generating and, the magnetic flux density induction windings is rapidly through \the due to the fact that the lines of diminlshed,

magnetic force. instantly seek the path ofl least reluctance between the magnet poles.

In Figs. l and 2, the frame 4 of the invdrawings,- more or substantial magnetic short v ductor alternator is shown pivoted or jour# naled on the bearing B of the crank shaft at one side of the motor, as hereinbefore mentioned, in order that it may be oscillated through a part of a revolution to vary the instant of generation of maximum electromotive force, so as to accommodate the generator forv operation. with mechanism for varying the period of ignition Within the engine cylinder.

13 is a link connected at its lower end With the generator frame, and having its upper end suitably "connected to one end of a lever ,14, which is pivoted at 15 to the frame of the motor.

ji-The mechanism for advancing or retarding the time of ignition'within the engine cy in der may be of any suitable and Well known type. For the purpose of illustrating our invention, we have shown in the less 'diagrammatically, such a mechanism. y K isa cam connected to move with a bell crank lever V, said lever being pivoted at Y to the cylinder of the motor, and adapted to be oscillated and retained in any desired position of adjustment by the engagement of its downwardly extending arm with one of the teeth of a rack section Z.

16 is a link connected at its lowerend to' the upper end of the" lever 14, and having its upper end connected to the outer end of the arm y' of the bell crank lever V.

The make and break ignition mechanism for the engine may be of any Well known and suitable construction. lVe have shown it as embodying the general features of construction and operation disclosed in Letters Patent of the United States No. 630,624, to C. H. Morse, Jr., and F. G. Hobart, for gas en ine igniter, dated August, 8th, 189g).-

is a suitably insulated stationary electrode. I

M is the movable electrode having a shaft m extending through one wall of the cylinder. Upon the outer vend of the shaft m 1s loosely mounted a sleeve m having an upwardly projecting arm H and a.' aterally projecting arm z.. n'

It is a spring having one end secured to the freeend of the arm It and itsy-x other end connected to the motor cylinder and ar- ,ranged to normally hold the electrodes M and S out of contact with each other.

M is a coiled spring arranged around the electrode shaft m and between its outer end and the sleeve m thereon, so as toform a Hexible connection between the :said sleeve and shaft, whi'ch will permit the sleeve to rotate relative to the shaft against the action of said spring. I

'T is a reciprocable -trip rod, which has one end mounted on an eccentric X carried by the shaft L, the latter being driven from a suitable member of the motor.

upper end of the electrode-operating arm H. During the loperation of the motor, the vtrip rod T at the proper instant, engages the aim H and moves the said arm so as to cause the j movable electrode M to engage the station- The trip rod then passes E economize space, which is of considerable immediately causestthe separation of the; electrode M from the electrode S, at which interval the spark occurs between the electrodes. By adjusting the cam K, the trip I rod Tis caused to bring about the separation of the electrodes and t-lie consequent;

ary electrode S. or trips off the arm H, and the spring L creation of a spark earlier or later in the stroke of the piston.

Adjusting the bell crank lever Y to the L left, or clockwise, will turn the cam K so as to eleva-te the free end of the trip rod T. This will cause the earlier disengagement. of the electrodes Within the cylinder, thusIadvancing the time of ignition. Adjusting the bell crank lever Y to the right, or anti-clockwise, Will relatively lower the free end of the trip rod T, which Will cause a later separat-ion of the electrodes Within the engine cylinder and the consequent. retardation of the time of ignition. The connections -be- `tween the said bell crank lever V and the frame 4 are so proportioned and correlated that, as the period of ignition in the cylinder is changed by the operation of the bell crank lever to either advance or retard the spark, l the electric generator is also shifted or adjusted into a position to generate the iequisite electro-motive force at the moment the electrodes of the make and break apparatus in the cylinder separate to produce the desired spark.

W is a Weight secured between the arms 17 extending from the frame 4, the said Weight being suitable to counterbalance the Weight carried at the opposite end of the said frame 4. 22 is a spring having its lower end at.- tached to a bracket 27 carried by the motor frame, and its upper end secured to an adjusting screw 26 which extends through a lcross bar 28 carried by the arm 17. This spring serves to supplement the Weight `W and affords an additional means for facilitating the adjustment of the electric generator.

The Winding on each pole piece may be in one or more separate coils of any suitable construction, ,all of which are suitably and properly connected together, either in parallel or in series, as may be desired. A suitable connection'from the terminals of the The driving connection for the shaft L has, for the sake of clearness, notbeen'shown. The trip rod T rests upon and is guided by the cam K, i and at its free end is arranged to `engage the i importance in small motors, especially for automobile and marine work.

"liatwe claim is l. In an apparatus of the class described,

the combination of an igniter-mechanism associated with an internal-combustion engine, a shaft projecting from the enginecasing, a magnetic field-frame adjustably mounted upon said shaftand provided with a Winding, a movable inductor for `Varying the magnetic flux through said Winding, an arni pivotally connected at one end ivitlrsaid field-frame and at the other end with said igniter-mechanism,` and means for actuat ing said arm for simultaneously adjusting said i inter-mechanism and said field-frame.

2. n an apparatus of the class described, the combination of an igniter-mechanism associated with an linternal-combustion engine, a shaft projecting from the engine-- casing, a frame of non-magnetic material adjustably mounted upon said shaft, a permanent magnet secured to said frame and provided With a Winding, a movable inductor for varying the magnetic flux through said Winding, an aim pivotally connected at one end with said field-frame and at the other end with said igniter-inechanism. and means for actuating said arm for simultaneously adjusting said igniter-me'clianism and said field-frame. f

3. In an apparatus of the class described, the combination of an igniter-nicchanisni associated with an internal -combustion engine, a shaft projecting from theengine casing, a magnet-ic field-frame adjustably mounted upon said shaft and provided with a Winding', a flywheel. supported by said shaft, an inductor carried by said flywheel for varying the magnetic flux through said winding, an arm pivotally connected at one end with said field-frame and vat the other end with said igniter-mechanism, and means for actuating said arm for simultaneously adjusting said igniter-mechanismand said the stationary electrode S with the generat.-.

casing, a frameof non-magnetic material ardjustably niounted upon said shaft, @per-vl manent magnet secured .to said frame and provided with a Winding, a Hywheel Sup-I ported by said shaft, aninductor carried by said ywhee for varying the magnetic ux- In Witness whereofx We in the presence of two Witnesses. ,A

HENRY' JOSEPH PODLESAK. TESLA EMIL PODLSAK'.y v Witnesses to the signature of Henry J0- seph Podlek: i

through said winding, an arm pivotally J. SOBEK connected at me end to said frame and at F. PTEK. the other endwvith sald igniter-meehanism, `Witnesses to the signature Lof Tesla Emil and, means foractuating said arm for simull' taneonsly adjusting said' igniter-mechanism and vsaid eldd'lrmne.- ej f A Podlsak: LILLIAN B. SHERMAN, y l JOHNH. BolNsALL.

afx voursignatures,