US1224356A

US1224356A - Ignition control.

Info

Publication number: US1224356A
Application number: US66719011A
Authority: US
Inventors: William C Brown
Original assignee: HUMPHREY GAS PUMP Co
Current assignee: HUMPHREY GAS PUMP Co
Priority date: 1911-12-21
Filing date: 1911-12-21
Publication date: 1917-05-01
Anticipated expiration: 1934-05-01

Description

-*w. 0. BROWN. Icumou CONTROL.

APPLICATION FILED DEC.2I. l9

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Patented May 1, 1917.

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IGNITION CONTROL.

APPLICATION FILED DEC. 21, I911.

Patented May I, 1917.

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IIIYEHTOII I I L- 1 I M ITTORUEY.

UNITED STATES PATENT OFFICE.

WILLIAI 0. BROWN, SYRACUSE, NEW YORK, ASSIQNHR TO HUMI'HBEY GAS PUM'P COMPANY, A CORPORATION OF NEI YORK.

IGNITION CONTROL.

To all whom it may concern 0 tion 0 I My invention comprlses method and means Be it known that 1,,Wrnnmia C. Brown, a citizen of the'United States, residing at Syracuse, in the county of Onondaga, State of New York, have invented a new anduseful Ignition Control, of which the following is a specification.

My invention relates to ignition control. Myrobject is'to provide improved method and a paratus for eflecting electrical ignif combustible charges.

for utilizing the flow or pressure of liquid in a play pipe or discharge pipe to maintain, against a resisting force, an open electrio circuit,-until the occurrence of a diminution, cessation, or reversal of said ressure,

whereupon the circuit is closed an opened m- I Referring to the drawings, which illustrate, by way of example, suitable apparatus for effecting my invention,

Figure 1 is a diagrammatic sectional view :of an internal combustion pump employing my improved means for ignition control.

Fig. 2 is anelevation in part sectionshowmy improved means indetaih ig. 3 is an elevation in detail, showing the contacts in position difierent from that shown in Fig. 2.

Fig. 4 is a longitudinal transversesection on line 4-4 of Fig. 2. Fi '5 is a vertical section showing addidimeans'for breaking the circuit by the operation of the exhaust valve.

Fig.- 6 is'a detail in vertical section, on an enlarged scale of said second circuit breaking means. i

Similar numerals refer to similar parts throughout'the several views.

" -Mv invention is especially applicable to internal combustion engines, pumps and compressors of the general type which are now known in the art as the Humphrey ump or compressor. One of the simplest orms of such a pum comprising a combustionand: expansion 0 amber connected. with a-play pipe, and a discharge, and also connected with a source of liquid supply. The operation of "this device, consists in expand-. ing a compressed combustible charge in an expansion chamber against a column of liquid, thereby driving the.liquid from the Specification of Letters Patent.

Patented May 1, 1917.

Application filed Decemlier 21, 1911. Serial 1 To. 881,180.

the play pipe in response to the head or pressure to which it has been driven, and liquid'flows back into the combustion chamher to expel burnt products and to compress a fresh coml: ustible charge which has been introduced irto said chamber.

In order t) secure a maximum eliiciency of expansion of the combustible charge, it is important that the charge be ignited at the moment, or very close to the moment, of its maxil ium compression, and as the amountof cc mpression may vary with each instroke of the liquid, due to a number of conditions w'iich it has been found difiicult positively to regulate, it follows that the ignition" device should be purelyautomatic to cause the'spark just before the incoming or Moving column of fluid has 'come to rest, which time is, of course, the moment of maximum compression.

Referring ;o the drawings, 5 indicates the combustion c camber with suitable intake for expansible charges and suitable exit for burnt produ cts. 6 indicates a source of supply with which the play pipe or dischargepipe is connected, said connection being contro. led by the non-return valve 8.

the play pipe 7 and upwardly to the high level tank 9. The momentum of the moving column serves to entrainfreshliquid from the source or supply 6 through the non-return valve 8. Fresh combustible charge may also be entrained during this outstroke.

When the momentum of the outstroke is spent the liquid returns, due to the head or pressure t 9 which it has been driven, and I flows in the reverse direction, that is, to-

ward the combustion chamber, rising in the combus1 ion chamber to expel burnt products andto compress the fresh expansible c'ha It is this instroke that is now. utilized to control the ignition of the comp-r essed combustible charge.

As will be seen by an examination of Fig. 2, the Bspoon shaped paddle or vane 10, is mount in a suitable housing 11, on the movement or pressure spindle 12. This spoon shaped paddle or vane 10 projects into the play pipe 7 as shown in Figs. 1 and 2, with a concave face toward the infiowing water. The spindle 12 passes through a suitable stufiing box and carries on its outer end the arm 13. The arm 13 is provided at its outer end with the binding post 14 and movable contact 15. The contact spring or blade 16 is also secured to and carried by, but insulated from, arm 13. This spring 16 is adapted under certain conditions to engage with contact 15. The housing 11 is provided with a bracket 17 for supporting at its outer end the adjustably secured fixed contact 18, adapted under certain conditions to engage with the contact leaf 16. The bracket 17 also supports or carries the tubular housing 19 for receiving the spring 20 and for carrying the adjustable screw head 21, which, with the cooperating screw 22, supports the upper end of spring 20. Spring 20 is connected at its lower end with the lever or arm 13.

The operation is as follows: Upon the return stroke of the liquid column toward the expansion chamber, the pressure of the liquid against the concave side of paddle or vane 10, moves it toward the right, that is,

toward the expansion chamber, which contact'element 16 away from the fixed contact 18. Immediately upon the diminution of flow of the inward stroke of the liquid,.or upon the cessation of the same, or upon the reversal. of flow, as the case may be, and which will be due to the tension of spring 20, the vane 10 moves in the opposite direction, in response to said s 'iring tension, which results in moving the'lever 13 upwardly, causing contact blade 16 to engage with the contact 18 while saidblade is stillin contact with contact point 15. This results in completing the circuit of a suitable. sparking device. Arm 13 continues to move upwardly, in response to spring 20, whereupon point 15 separates from blade or fiexi ble contact element 16, thus again immediately breaking the circuit, so that the make of the circuit is only momentary, thus preventing an undesirable continuation of sparking.

7 It will thus be seen that, by a proper adjustment-of the tension of the sprlng 20, which opposes the liquid impelled movement of vane 10, it is possible to provide that the vane may be reti'u'ned to initial position slightly before the liquid comes to rest in its instrokc. so that the spark may be secured slightly in advance of the moment of maxi-- inuui compression or practically smmltanethe collar 32 secured to rod ing the spark until after the'monient of maximum compression. This range of adjustment makes it possible to secure the. spark at the moment most suitable to the peculiar conditions which it may be desired to meet.

As above pointed out the spring contact 16 will bridge the contact points 15 and 18 just rior to the arm 13 moving into the position shown in Fig. 3, which is at the end of the compression stroke, and when the ignition takes place. will also bridge the

contacts

15 and 18 in returning to the position shown in dotted lines in Fig. 2, that is, at the beginning of the instroke.

In order to save unnecessary expenditure of electric current, and also, as a factor-of safety, it is often desirable to eliminate this intermediate sparking. This may be done' in a number of ways, but I have found-that the means shown in Figs. 5 and 6 have been entirely satisfactory. It not only prevents the sparking 0n the idle stroke, but also. prevents ignition if for any reason the exhaust valve does not close.

The wiring shown in F i 5 is-somewh'at different from that shown in Fig. 1, that is to say, the circuit includes the binding post 14, the contact 15, the bridge 16, the contact 18, the binding post 23, the contact 26 and binding post 27 mounted on the spring 28 insulated from the supporting structure the binding post 30 which is secured to the exhaust casing 29.- The circuit then includes the two terminals of the spark plug, the usual battery and coil. It will thus be seen that when the. exhaust valve 2 1 is in the closed position as shown in Fig. 5, the valve rod 25rontacts with contact 26 and closes the circuit. at this point. This exhaust valve is ordinarily closed by the impact ofthe water toward the end of'the return or compression stroke in the combustion chamber. The exhaustvalve is normally otherwise held open by the pressure of spring 31 between the top of the exhaust casing 29 and \Vhen the exhaust valve is in the open position, rod 21 is de in-cssed as indicated in Fig. 6, breaking contact with the contact member 26. It will thus be seen that in order to produce a spark by the l'n'idging of the

contacts

15 and 18, it p is necessary that at the same time the exhaust valve 21 be closed in order to close the circuit at the contact 26.

I do not confine myself to the form of vane or paddle shown in the drawings, as in many cases a Hat paddl will give satisfartorv rosultsl Nor do 1 limit myself to the particular method of mouuiingtlm paddle shown, it obviously many different ways of travel of. liquid of mounting the vane or blade, and of utilizing its deflector may be equally within the sco e of my invention.

hat I claim is '1. The method which consists in reciprocating a column of liquid of sufficient bulk and path of travel to acquire useful momentum, said column'ada'pted to move with varying force, projecting into the ath of travel of said liquid column 'a move 1e element, subjecting'said movable elementtothe influence of a. substantially constant force, so that said constant force will sometimecooperate with the force of the moving column and sometimesoppose it, and the said movable element will becontrolled by "the.

stronger of two opposing forces.

2. Means for e'fifeoting the electrical ignition of a combustible charge, comprising} an electric circuit, fixed and movable contacts therein, a vanejprojecting tranSverse' the path of travel of a liquid, and supporting means for the movable-contact havin perativerelation with the vane.

3. Means for effecting the electrical tion of a combustible charge, comprisingan electric circuit, fixed and movable contacts therein, a vane pivotally mountedfand pro jecting transverse the path of tr e contact having operative rela H the vane. 1 r.

4. Means for effecting the electrical "ignition of a' combustible charge comprising an electric circuit, fixed and movable contacts therein, avane projecting transverse the path and spring controlled supporting means tor themovable contact having operative relation with the vane.

5. Means for effecting the electrical ignition of a combustible charge, comprising an electric circuit, fixed and movable contacts therein, a vane projecting transverse the path of travel of liquid, adjustable spring controlled supporting means for the movable contact having operative relation with the vane. I

6. Meansfor effecting the electrical ignition of a combustible charge, comprising an electriccircuit, fixed and movable contacts therein, a vane projecting transverse the path of travel of liquid, supporting means for the movable'contact having-operative relation with the vane, and means for adjusting the fixed contact.

7. Means for eli'ectlng the electrical ignition of a combustible. charge, comprising an electric circuit, fixed and movable contacts therein, a vane projecting transverse the 'pathof travel of liquid, supporting mea for the movable contact having operative relation with the vsineanda resilient conducting element for momentarily bridging the fixed and movable contacts during the movemcnt,of the latter.

, offa liquid, and supporting means for heme, ab

'nected with the contact supporti 1g arm, a flexib e contacting 8. Means for eifecting the electrical igniher, a play pipe for liquid connected therei with, an electric circuit, fixed and movable contacts in said circuit, a housing connected with the play pipe, 9, vane mounted in the housing and ha ring its free end projecting intoand transvr rsc the path of travel of the liquid in the play pipe, a spindle connected with the vane carrylng a movable contact supporting arm, and a flexible contacting element secured to said supporting arm for a momentary cc ntact. between the fixed and movable contacts during the travel of the vane.

10. The combination of an expansion chamber, a play pipe for liquid connected therewith, an eh ctric circuit, fixed and movablecontacts-in said circuit, a housingconi e a vane mounted nected with the pla having its free end proin the housing and jectiiig into and transverse the path of travel of the liquidin whe play pipe, :1 spindle convane carryin a movable element secured to said-supporting arm for a momentary co atact between the fixed and movable contacts during the travel of the vane, and a spring connected between a fixed point and the movable contact arm.

11. The combination of an expansion chamber, a play pipe for liquid connected therewith, an electric circuit, fixed and movable contact; in said circuit, a housing connected with the play pipe, a vane mounted in the housing an having its free end projectin into and transverse the path of travel 0 the lquid in the play pipe, a spindle connected with the vane can in a movable contact supporting arm, a disc le contactingvelement secured to said supporting arm or a momentary contact between thefixed' and novable contacts duringthe travel of the vane, and an adjustable tension spring connected between a fixed point and t e movable cont act arm.

12. Means for efit'ecting electrical ignition of combustible charges, comprisin an electric circuit,- havin two sets of xed and movable contacts. t erein, a vane projecting transverse the pa th of travel of a l1quid,sup-

orting means fir the"o ne movable contact avin operative relationship with the, vaneliquid in the play pipe for controlling one make and break device and means whereby the exhaust valve controls the other makeand break device.

14. The combination of an expansion chamber with suitable inlet and exhaust valves, a play pipe for liquid connected with the expansion chamber, an electric circuit having two sets of make and break devices, a movable member aflected by the pressure of liquid in the play pipe for controlling one make and break devlce and means whereby the exhaust valve controls the other make and break device.

15. The combination of a movably supported body projecting into and transverse the ath of travel of a liquid, means for normal y counterbalancing the force of liquid flow against the said body and a motor ontrolling device adapted to be actuated by said movablysupported body.

16. The combination of a ivotally supported body projecting beyond its pivot support into and transverse the path of travel of a bod of liquid, means for normally counterba ancin the force of liquid flow against the said body and motor controllin means in operative relationship with said pivoted body. w

17 The combination of a movably supported body projectin' into and transverse the path of travel 0 a liquid, means for normally counterbalancing the force of liquid flow against the said body and ignition means controlled b said pivoted body.

WILL AM 0. BROWN.-

Witnesses: i

MABELLE ETHERBON FRANK B. Honcns.