US878783A - Engine. - Google Patents

Description

PATENTED FEB. 11, 1908.

R. M. DOWNIE.

ENGINE.

APPLIOATION FILED AUG. 1a,

oz, ie,

Glicine ROBERT M. nowNIE; E BEAVER FALLS,

` and useful Engine, of which the following is a specification.

UNiTED 'STATES PATENT-OFFICE co., or. BEAVER FALLS, rENNsYLVANiA, A coRPoEATIoN or' rENNsYLVANIA.

Y ENGINE.4

. Specification o'f Letters Patent.

Application llled August 13. 1 907 Serial No. 388.333'.

Patented Feb. lv11, 1908;

To all 'whom-Lt may comer/a:

Beit known that l, ROBERT M. DOWNIE,

a citizen of the United States, residing at Beaver Falls, in the county of Beaver and State of Pennsylvania, have invented a new This invention relates more particularly'l to explosive engines of the reciprocatory piston type, and l the object thereof 'broadly stated, is to provide novel means of Ia simple and enective nature for supplying either a lubricating or cooling ,agent or both to the .f drawings ln t lcasing 7 is provided,"includin piston.' f

In its more specific asfpect, the invention aims to provide means o a ractical nature, which will automatically ta e up the lubricant or a cooling agent from a reservoir and deliver it to the piston and associated pa'rts that are subject to friction and heat,l said means insuring a constant supply underpres- 'sure as lon \as the engine is in operation.

The reerred embodiment of the inveni tion is i lustrated in the accompanying drawing?, wherein igu re 1 is a' vertical sectional view nal channel 'conduit the through the engine. Figs. 2, 3, 4 and 5 are respectively horizontal sections-on the lines 2-2,.3-3, 4 4 and 5`5 of Fig. 1.. Fig. 6 is a detail sectional view-through the lower Vportion of the piston taken at right angles to i .1. imilar reference numerals designate corresponding parts in 'all the figures of the e embodiment illustrated, a crank a column 8 that carries the cylinder mein er 9.' A reciprocatory piston, operating in the cylinder member, comprises aV shell -10 having an end Wall 11 and `cylindrical side walls 12.' side walls are -providedwith'sets of radially disposed channels 13 of the iston which is in sliding engagement 'withV tllie inner face ofthe oylmder. Bearing ysections are detachabl'y fitted in this shell, the upper section beingin `the form of a ca 14 vthat is snuglyiitted in the u per portion of the shell, and is pplovided'wit an upper series of radiating gers 15 'and a lower annular lange`16.- The lower' section 17 is threaded, as shown at 18 into the shell, and constitutes means for maintaining the cap section in place.

'its top with a ch channels 1315` upper end opening ba l nel33 leadingA to the u v venting itsl return. The

lending tothe outer face Y Arotat'able crangk- 19 operates in the crank casing 7, and a pitman 20 havin crank, is provided at its upper end with a ball 21 having a vvbearing between the sections f and partially in each, as will be clear by ref# erence to Fig. 1.

The ,upper or cap section 14 is provided in mber 22 closed by the end wall 11- of the s ll, and an annular chamber PENNSYLVANIA, AssiGNoR To KEYs'roNE DEILijEnV its lower end connectedtoA said 23, surroundin the ball bearing`,'is in coin- 1 munication wit the uppermost chamber 22 through channels 24. This annular cham-- ber 23 is in communication. with the uppermost set of channels 13, and inwardly err-x tending channels '25, lead from the'chamber 23' to the bearing section 17 has its upper corner cut. away4 to bearing. The lower or retaining producefa chamber 26 in communication With-the chamber 23 through chan nels-27, and this .lower section is furthermore provided with another chamber 28 in coinmunication with the 'chamber 26-through channels 29 said chamber 28 being also in communicatipn with the. lowerinost set of The p'itman is provided withalongitudi- ,30, and therefore constitutes a This channel.l 30 communicates lown end ffan air chamber-,31, formed inthe up er end of said p itnmaii, and a discharge con uit 32, depending into theair chamber and having its lower inlet end ortion thereof,- has its located in the louwer t ough the top of the andcommunicating with a supplybham 'permost'chamber 22.I An upwardly opening of fluid throughthe' Inthe lower pprtion of' the channe 30' in thepitman is an upwardly opening balll valve35 and a curved supply l conduit 36 'has its upper end communicating `with the -iihannel 30 below the valve 35i- Thel conduit 36 partially surrounds Athe. crank 19 and is'disposed eccentrically thereto, be-'f ing provided witha lower `open inlet end 37 that is disposed closer to the axis ofthe crank 19 than any other portion of the 1c0nduit This fis an important feature ofthe invention all valve`f34 is prefer ably employed to permit the upward passage conduit 32, while pre- Q -ioo ios

as c learl.yillus-fA trated in Fig. 1, constitutes areservoir for a fluid 39 which may be a lubricant, a cooling agent or both.

N one of the valvemechanism, charge supplyin means, or ignition mechanism is disclose in the drawings, inasmuch as they constitute no part of the present invention, and may be of an suitable character.

The operation of the structure is substantiall as follows. As the piston'reciprocates,

v it will of course be understood that the crank 1.9 is revolvedin the ordinary manner and in the direction of the arrow. Therefore the i .inlet end '37 of theconduit 36 will be forced f axis than any other partof the conduit,'the

.the 'piston in the chamber 22.

fluid will be elevated with considerable force, inasmuch as itsmovement is continuously away from the crank, and consequently cen-. trifual force will assist in the operation. The uid uponveach successive movement of the conduit 36-through the reservoir will be elevated'through the channel 30, and Awill reach the air chamberL 31, finallyv.p`assing through the conduit 32,- past'the valve 34 and being sprayed 'against the 'end wall 11 of From this chamber it `flows into the chamber 23, and thence part will ass through the channels 13 to theNsurface o the piston, .while other portions are'passed through the channels 25 'to the pitman bearing. Other=portiois will gravitate lto the lower chambers and 'thencef to the piston surface, finally escaping and rethe different cha turning tothe reservoir. Inasmu'chas the escape from the piston will be comparatively slow, the supply will causefthe fluid to ac- :cumulatein `the lower portion of the -air .chamber 31 and passing above the lower endof the discharge conduit 32, will compress the air in' said chamber. Therefore a ,constant pressure is maintained -by the compressed air of the Huid through nels is insured. From the fore 'ng,it is thought thatthe construction, .operation, and many advantages` of the herein described invention will bea parent to'those skilled in the art, wit

.out

rther description, and it will beunderstood that various changes'in the size, shape,

proportion, and` minor details of construcv tlon, may be resorted' to without departing from the spirit or sacrificing any of the adi vantagesof the invention.-

Having thusfully'described my invention,

what I claim as new, and desire .to secure by Letters Patent, is

1. In an engine of the character described, the combination with a cylinder member, of a piston Amemberoperating therein, a pitman having a bearing in the'pistoii member, said piston member having a' chamber, and a supplying fluid to the chamber;

2. In an engine of the character described, the combinatlon with a cylinder member, of a piston member operating therein, a .pitman having a bearin in the piston member, said piston member having a 'chamber surrounding lthe bearing and a plurality of channels leading to thebearing, and means for supplying fluid tothe chamber. y

the -combination with a cylinder member, of a piston member operating therein and having a chamber and channels leading therefrom to the surface of the pistonmember, and means for -supplying fluid to the chamber. 4. In an engine of the character described, the combination with a dylinder member, ofV a pi'ston member operating therein; and havleading therefrom to the surface of the piston member, and means for supplying liquid to the chamber. f

5. In an engine of the characterdescribed, the combination with `a cylinder member, of

pitman having a bearing in the piston member, said piston member having a chamber ing and to the surface of the piston member.

6. In an engine of the character described, the combination with a cylinder member, of a piston -member operatingtherein, and a pitman having abearfing in the'pistonmember, said piston member having 'an annular chamber surounding the bearing and being furthermore provided with inwardly extendingl channels leading from t e chamber to the bearing and outwardly extending channels leading -from the chamber to the surface of the piston member. 7. In an engine of the character described, the combination with a cylinder, of a piston having a plurality of chambers and channels leading from the chambers to different por-l tions of the surface of the piston, and means for introducing a fiuid to said chambers.

8. In an engine of the character described, the combinationwith a cylinder member, of afpiston inember having upper and lowerchambers,y channels connecting the' chamabers, channels leading from@ the different chambers to different portions of thev surf-ace of the piston, and means for supplying fluid to the upper. chamber. I

9. In an engine of thecharacter described,- the combination with a cylinder member, ofv

a piston member operating 'therein and inchannel leading to the bearing, and means for 3. In an engineof Athe character described,

ing an annular chamber; and radialchannels a piston member operating therein, and a 1'00 and channels leading therefrom to the b earcluding bearing sections, said sections having chambers therein, a pitman having a bearing vin said sections, .channels leading from the chambers to the bearing and to the surface of the` piston, and means for supplying fluid Ato the chambers.

10. In an en ine of the character described, the com nation with a cylinder, of a reciprocatory piston operating therein and comprising a'shell having channels through its peripheral Wall, bearing sections fitted in the shell and having chambers in communication with the channels, a pitman having a bearing in the sections, said pitman having a channel therethrough that is in communicai 'Zion with the'chambe'rs, and means for supplying li uid to the pitman channel an'd through t esame to the chambers. d

11. In an engine of' .the character described, the combination with a cylinder and a reciprocatory piston operating therein, of a fluid holding reservoir, a crank in the reservoir,'a' pitman connected to the piston and tthe crank, said pitman having a fluid conducting channel, and a curved inlet conduit located eccentrically to the aXis of the crank and communicating withthe fluid conducting channel of the pitman, said conduit havincluding an -end wall, a pitman co nectedl ing an open inlet end ,disposed nearer the said aXis of the crank than any other`l portion of the conduit.

12.Y In an engine or the character described, the combination with a c' linder, of a reciprocatory,pistonbperating t e in and to the piston, and means for projecting Huid through the pitman and' against the end Wall.

13. In an en ine of the character 1described,l the com nation with a c linder, of' a `reciprocatory piston operating t erein and including'a shell havin an endjwall, a bear- 4 ing section located in t e shell and having a chamber in its top closed'by said end Wall,

and `means .for projecting fluid into said chamber and against the end wall. 1

14. In 'an engineof the .character described, lthe combination with a cylinder, of a therein and reciprocator'y wall, a bear.-

iston operating includingl a she l havin an en ing section located in t e shell and havin a` chamber in its top closed by said end 'Wal a pitman having a bearing in said section, 'channels formed in the Vpitman and section and communicating with the chamber, and

means forY forcing'fluid through the channels.

15. In an engine .of the character described, the'combination with a cylinder, of a iston operatingptherein, means for su plying fluid tothe piston, includingan air c amiberfhaviigi'l 'a'fluid discharge channel that dee piston, and means for introducinto thel chamber to 4compress the saidconipressed air constituting means forejecting said `fluid through said discharge,

16. In an engine 4of the character described, the combination with a cylinder, of a reciprocatory piston operating therein, means for supplying fluid to the piston including an air chamber, a fluid discharge conduit having an inlet opening in the lower portion ofthe chamber, and. means for introducingl fluid under pressure into the lower portion 'of the air chamber to compress the air in the upper )ortion thereof. 17. n an engine of the character described, the combination with a cylinder, of

a piston operating therein and having discharg'e passageways, a pitman connected to the piston and'having an air chamberin the upper end thereof, and a channel leading to the lower portion of'said air chamber, means `dconnected to the channel for introducing 'fluid thereinto, and a discharge conduit com-v municating with the discharge passageways of the pistpn and having its inletend in the low'er portlonl of the air chamber.

18J In an en ine of the character described, the cominationwith a crank case constituting a fluid reservoir, of a cylinder mounted onsaid crank case, a reciprocatory piston operating4 in the cylinder and comprising a shell'having an end wall and radial channels in its side walls, a cap bearingsection located in the shell and having a chamber communicating with certain of the radial channels; said cap section having an -annular chamber that communicates with the first mentioned-chamber, another bearing section threaded into the shell and having a chamber communicating with certain of the radial channels and being also in communication with the chambers of the ca section, a 'rotary crank located in the cran case, a pitman'connected to the crank and having a ball bearing in the" bearing section,

said pitman having an air chamber in its upper portion, and a fluid conducting channel communicating with the lower portion thereof, a discharge conduit depending into the airchamber and'having its inlet end in in' communication with the chamber inthe -top of, the cap section, and vacurved supply the lower portion thereof,'said conduit being

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