US1291839A - Internal-combustion motor. - Google Patents

Description

w. R. GORHAM. I INTERNAL COMBUSTION MOTOR.

APPLICATION FILED JUNE 1. 19 16 1,291,839. Patented 3311.21, 1919.

3 SHEETS-SHEET I.

HIHIIIHHIIIHI W I TNE SSES: 1N VEN TOR.

A TTORNE Y.

W. R. GORHAM. HJTERN'ALIEOMBUSTXON MOTOR.

APPLICATION FILED JUNE 2" 1915 3 $HEETS-$HEET 2- INVENTOR.

A TTORNE Y.

W. R. GORHAM.

INTERNAL comausnou moron,

APPLICATION FILED JUNE 1. I9l8 j 1 839, Patented Jan. 21,1919.

3 SHEETS-SHEET 3- INVENTOR.

A TTORNE Y.

til

mo -a i trus ""1 t {'l w ii ll -tl. an 3 ILItZIAlYt B.

Application filed a eu :n of the ll nited States, residing in the. y of Alameda, county of Alameda, State ol tfalil ornia, luivo made a new and useful. lllYPIlllUlllh wit, Internalllmuhuslion Motors; by deelare the following to he s, and enzael. description of the same.

.is invention relates more particularly to the luhrieating system of internal eomhustion motors designed partieularly for use in aerimlunes. and includes the novel construe- -tiouj 'gement and combination of parts for the t. ihution, circulating and cooling of tie lubricating medium 111 said motors.

on improvement in and. 1 do herea lull, clear,

lln t ieeil'ieation end the annexed till'ltElllli}, lllllbllltltu the invention in the {form that. consider the host, but it is to he mnierstootl ti" gi 1 do not limit myselil to this form. one, he said invention may he enr hodied in other forms, and it is also to he Lnulerutoodthot in 1nd. hy the elaims following' the deswption i desire to cover the mvolition in 'wluilsivver form it may no emhodied.

to. the aeeounmnying two sheets ot drawlllffkl 1:

nu'e 'i is u side elevation of an internal .on motor otmstrueted in accordance invention, shown partially in fragu'ientary eriss SQK'ZtlOn-SU better to disclose portions ot the internal mechanism.

'l' ig. is a side elevation 01 the oil pan. or ruervoir adapted to he located under the to of the motor. n 1:, is :1 cross section of the same on the U. Fin. 2.

a vertilal eross seolionol' the eomeeniiriifunal water eireulating: pump cooling system and the gear pressure p in? the oil circulating system.

5 is a vertical eross section of the oil i 1/ taken on the line VV Fig. 4-. illustrating; the. inlet and outlet ports eored m,tho

oil pinup easing.

Fig. 6 is :1 transverse section of a eranlc shall hearing]; eonstrueted and lubricated in nootndanro with this invention, the oil pump heing dingrauunalieally associated therewill i Fig. l is a longitudinal soot-ion of the same; the shaft being shown in full lines.

Fig. t; av fragmentary detail similar to Fig". it ill ust-ratiiur a modified form of applying luhricn'nt to the hearing in accordance with this invention.

GORHAJVI, OF ALAMEDA,

Specification of Letters Eatent.

CALI'EQll-NIIL.

Patented Jinn. El, 1919.

June 7, 1916. Serial No. 1013.300

In detail the construction illustrated in the drawings includes the crank ease designated in its entirely by the numeral 1, having theerank shalt 2 joiu'naltul therein in suitahle hearings. The cylinders 3, six in mamber are bolted to the crank case and have the pistons l reeiprtuzaiahle therein and eonneeled to the crank sha'i't by the (:inmeetr ing rods 5 In the usual manner. The cylinders are provided with inlet and valves common to the tour cycle. type of internal combustion motors. These valves are operated by the roelrer arms ll. These arms are artunled hy the rams on the rum shaft. 7 journaled in suitable hearingsmounted over the rylimlers. 'lhis oam shaft is driven synelu-onously with the crank shalt by the {rear 3 iixed thereon and enmeshed with the piuions t) on the vertical shaft 10, having a pinion ll on the opposite, end tlua'eo! eumeshing-wilh the driving]; gear 1:2 fixed on the crank shaft to time the, opening and elosing of the valves syneln-mui'usly with the reeiproeation. of their irmmeetive pistons.

'lhe motor equipped with fuel distribution maniiolds l3 hetween the earlmreter H and the cylinders; with ignition means driven from the crank shall, and also with a water circulation pump having its rotor lived on the shell 30. geared to the'erank shaft, as desrrihed. and adapted to circulate a cooling medium ahoul the various oylinders in the usual manner. Certain novel teatures in the design and eonstrmttion oi the motor disclosed herein and not germain lo the lulu'ieatiup; system will he covered in separate applirations l'or patent.

The oil eirrulating: system inrludes the oil tank or reservoir ill, fixed henealh the. (Tank ease l h an oil tight llange oonmiotion as v 21.. llerause of the lrietional heat ahsorhed hy the l ll l'ltiillllg medium. the reservoir is des. 11':u-d and eonslrueled to present the maximum amount of rmlialiui! surface eonsislenl with the neressauv oil (apaeity. This is aeeomplished as host illus-' outlet '25 (form In: nif'old 3T, OXWIHURH' Eng urtizm in N20 Wind E c mum-Is vfi'vvi n'iwy (-003 2; The hzbrin-nnt pumpm voir at H20 lmwm'msi point h1g1 \i'ii h 1h? 1 2T commlmimti: 1' n2 circulating p 5} type as illusimtc gvnr 2!) of the 1m 30, ,suitably joux'n'x "having the, sgezxiv mesh d with Lin: 3;: Tl T1 tntion 0" f' in Hie Mk3 gear P suitably jam 'naiml i1 the pump Passing 3 Th0 action 0f such imps i5 suiiivbuni'b' w ,1 known to rendm kehzriwti x-a nnrmwsrx Tlm hlbz'ieauzt 'nrcaszbz M5 flaeman, .21150 the brash); 51 v3. propel ecnce-nhicitjjv .ng supporting the sh; t

" *1 under minim-12,?

i A the passage 23S preiiwabiy mm! n time n mi 'rsml shims 5? proviiie for tak ms; and mdmatod in 6mm in" n: 9 511 0'? izhe Warn 1 the suai and 00mmunimiiug: wim H0 The um-5s: I from Hm the mum Y; is mm cummn'uicnting Wit? a the 0 ."wrv 1 which the crank 9 h; 1U

a suppi -IE wax ingg' ks: 4-4 x {1! 2: 255 formed immiwiy m1 Hm walls 05 4 aoove 6U 3120 mi? 20,- The server, 45 is intended to km} inicfijng; mriivlvs ('5 (urban or niastz'm'tim m-h like hear from entering: HM hfln'ic'zm' (rirzruiai'ingg 3 aJQ'QOn' mm P" 4 nm puma? me:

:s are Eu'inimtvd by the zbrimtiun mm forced into the bearing under pressures varying with the load upon the -bearings. For example, say the load upon given bearing is 100 pounds, the oil is pumped in at a pressure sufiicient to lift this weight and float the shaft and its load by the volume of oil pumped into the bearings, the

pressure being proportioned to the supercial area of the bearings. It is obvious that as the bearing wears, the leakage of 011 will be greater, particularly at the ends oi,

the bearing and it will therefore be necessary to supplya greater volume or a higher pressure to the Q11 entering the bearm to maintain the proper support for the s aft therein. This-type of In rication is particularly valuable in internal combustion motors, more-particularly in such motors used in aeroplanes,ji'n which the constant change of inclination tends -'to throw the strain on different parts of thebearings rendering any type of gravity lubricated bearings impract1cal.-.' In Fi .8 a slightly modified form of bearing is i! ustrated, inwhich the groove 63 is substituted-by the hole 63' drilled into the blocks 52 and closedbythe plu 63".

The cam shaft mechanism is supp ied with lubricant through the vertical tube 66 communicating "with the manifold 37 at the point 67 between each set of cylinders. The oil forced through the tube 66 is discharged into the main bearin s 67 in which the hollow cam shaft 7 is ournaled. From the. oil grooves in the bearings 67 the surplus oil passes through the by-passe's 69 in the cam shaft to the hollow center thereof from which it escapes through theby-pass'es 70 in the cam shaft at each cam. The oil flowing through the lay-passes 70 is thrown against-- the rollers 71 on the rocker arms that operate the valves of the respective cylinders, the escaping oil being splashed into the chamber 72, sealed by the-covers 7 3 held in place by the knurled nuts 74, the surplus oil draining back mto the wells 68-68 beneath the cams which splash intoit in their rotation beneath the rocker arm, insuring a thorough distribution of oil through the inolosing chamber 72. The oil in the wells 68 drains back through the tube 75 surrounding the supply tube 66, into the crank case and then back into the oil reservoir' 20, and through the circulating system described. These return tubes 75 are repeated between each set of cylinders. The cam shaft 7 being hollow throughout its length and closed at each end, insures a thorough distribution throughout the cam operating system from end to end of-the motor irrespective of its inclination. This condition is likewise maintained through the hollow crank shaft and the rest of the force feed lubricating system described, fully meeting the adverse conditions met with particularly in aeroplane flight, the motive power of which this motor is particularly designed to supply.

Particular value is attached to the combination of the water circulating and the oil circulating pumps disclosed herein. The combination of these two elements results in a great saving of space, reduction of opcrating parts, and general strength and simplicity. B the direct connection of these two circu ating means, their operation is' more directly synchronized with the 0 erationpf the motor. In addition to t e mechanlcal and economic advantages .de-

scribed, bringing the lubricating medium" into proximity with the coolin medium passing through the pum .16, ten sto reduce the temperature of the ubrlcating through the pump 16 absorbin the. heat given oif by the lubricating passage through its circulating pump.

-Having thus described this invention, I claim: .1. In an internal combustion motor, a bearing supporting'a shaft, such berarin bemedium. by reason of the thermo-conductivity-of the. combined pump casings, the water passing ine ium in its ing composed of separable parts bolte to I gether; an oil' passage communicating with the space between one of said-bolts and the surroundingbearing part and terminating in. said bearing beneath said shaft; and

means for forcing oil under sustained ressure into said space surroundlng saidolt.

2. In an internal combustion motor, a

bearin supporting a shaft and composed of sepa'ra le parts bolted together; an oil paswith said "hole in the'crank case, and an oilgroov'e 'in"'saicl "block communicating with said bearing; a plate engaging said bolt be neath said block; and means for forcing oil into said manifold.

In testimony whereof, I have hereunto set my hand at San Francisco; California, this 31st day of Ma 1916.

- WIL JAM R. GORHAM.

In presence of.

BALDWIN VALE, A. J. HmvnY.

Law

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