US973507A - Hydrocarbon-engine ignition system. - Google Patents

Description

R. HU'PF.

HYDROGARBONNGINE IGNITION SYSTEM.

APPLIGATION FILED JUNE 15, 1906,

973,507. `Pawemea o@t.25,191o.-

nu" 30 f UNITED sTATEs AI-nIInIIT oFFIoE.

RUSSELL HUFF, oF DETROIT, MICHIGAN, AssIGNoR, BY MEsNE AssIeNI/InNTs, .To PACKARD MOTOR YCAR COMPANY, oF DETROIT, MICHIGAN, Av COBPQRATION F MICHIGAN.

L zenlof the United' States, and residentof dersv of a four-cylinder hydrocarbon engine showingthe ignition system; Fig. 2 is a sec- 4.0- chinery.

Detroit,` lvayne county, State of Michigan, have invented certain ynew and useful Improvements in Hydrocarbon-Engine Igintio'n Systems, of which the following 1s a specification. y

This invention relates to improvements in the ignition apparatus of multiple Cylinder hydrocarbon engines for motor vehicles.

The invention will be described in connection with the accompanying drawing,y in which,

Figure l is a side elevation of the cylint-ion on the line 2 of F1g.-1.; and Fig. 3 is a detail.

Referring to the drawing 10, l1, indicate two cylinder lcasings each comprising a pairof cylinders of a four-cylinder hydrocarbon engine, 12 indicates one of the pistons, 13 a connecting rod, 14 an exhaust valve and 1 5 a mixture valve. A magneto 16 is suitably geared to the engine shaft and supplies theI current for the ignition devices. 'The 10W tension current from the magneto passes through a conductor 17 to `a coil or transformer in box 18. The high tension current `from the transformerpasses throu h a conductor 19 to a distributer 20 also rivn by the engine, by. means of which it is distrib-l uted to the several cylinders and the sparks properly timed. The current from the distribur passes to the cylinders through conductors 21 and 24 inclusive.. The high and low tension circuits are completed through a ground wire 25 which connects the coil with the engine or otherpart of the ma- The conductors 17, 19 and 21 to 24 inclusive are supported by posts 26 of insulating material which are rigidly connected to the engine casings. These posts are set opposite the spark plugs 27 and upon each post is mounted a switch lever 28 which canbe thrown into and out of contact with a con- .tact 29 of thespark plug. This contact is `in the form of a yoke 30 which -is detach ably connected to the spark 1u by a thumb screw 31. Theswitch pre eraly'has two Specification of Letters Patent.

Application .led June 15, 1906.' Serial No. 321,936;

Adetachable y? HYDROCABIBON-ENG'I'NE IGNITION SYSTEM.

blades andthe part 2,9 is preferably cylindrical and entersbetweenY the blades, ras illus-v trated in the drawings. f

In ahigh tension ignition system it is importa-n't to 'have the conductors' thoroughly insulated to prevent leakage.- This is accomplished by mounting the conductors in the manner described and maintaining them separated. Another advantage nobtained lhy of the high tension circuit for f one cylinder cylinde'r'is reduced to a .is

Patented oct. 25.1.1910.

this construction is that the inductive action tioally obviated Vso that lat-premature ignition by induction is prevented. I have found the arrangement above described to be very effective in this respect.v In the operation Y of Inotorcars havingv multiple-cylinder enginesA it is yimportant to be able to locate trouble with the ignition -systemquickl and bythe apparatus above described I am enabled almost instantly to detect which conductor ,or sparkpllug is out of order. when trouble `occurs with any of them. Thus when there is a miss in any of the cylinders each cylinder is tested in turn by open'- ing the switches of the other cylin ers. Thus in a few moments each cylinder can be tested and the dificulty can be accurately located'. By using the detachable yoke contacts upon the s ark plugs I am abl'e to replace a plug wit out discarding the contact and Iam also able to use these yoke contacts with plugs of diiferent designand manufacture. 4

Having described my invention what I claim is,

l. In a high tensionignition system for hydrocarbon en ines for motor vehicles, the combination wit a plurality of engine cyl- .inders,-of a spark plug on each cylinder, a

post .orsupport of Insulating material adj acent to eachy spark plug, a Aswitch lcarried by each sup ort and arranged to coperatewith the spari; plug, and a conductor leading to each switch, the said conductors being separately mounted' upon said posts.

2. In a high tensionignition system for hydrocarbon en `nesfor motor vehicles, the combination wi a lurality of en ine cylinders, of a s ark'pl) e 30 on eachspark plug proug on each cy inder, a'-

vided with a Contact, a post or support of insulating material adjacent to each spark plug, a switch carried by each support and arranged to coperatie with said contact, and a conductor leading to each switch, the said conductors being separately mounted upon said posts.

' 3. In a high tensionfignition system for hydrocarbon engines, the combination with a source of low tension current and a transformer for creating a high tension current,

of a plurality of engine cylinders, a corresponding plurality of hi h tension conductors leading to the cylin ers, a distributer for directing the current to said conductors successively, spark plugs on the cylinders, ,a post or support of insulating material `upon each cylinder, and a switch carried b each post or support and coperating withthe spark plug of the corresponding cylinder, the said conductors being mounted upon said posts or supports.

4. In a liigli tension ignition system for hydrocarbon engines for motor vehicles, the combination with aplurality of engine cylinders, of a spark plu on each cylinder, supporting means consisting of insulating material adjacent each spark plug,.switches carried by said supporting means and arranged to coperate with the respective spark plugs, and high tension conductors mounted on said unsulating supporting` means, one of said conductors leading to each of said switches.

In testirnon whereof I aiiix my signature in presence o two witnesses.

` l RUSSELL HUFF.

Vitnesses:

HERBERT M. ALLIsoN, MARK C. TAYLOR.

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