US904434A - Oil-pump. - Google Patents

Description

R. HUP?. l OIL PUMP. APPLICATION FILED MR. 23, 1907.

, 904,434.y Y Patented N0v.`17,19os.

` 2 SHEETS-SHEET 1.

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i RUSSELL Hors, or DETROIT, MICHIGAN, AssIGNoR 'ro PACKARD MOTOR CAR COM'NY,

zen of the United States; and resident of Dev unirsi) srarns PATENT OFFICE..

OF DETROIT, MICHIGAN, A QORPORTION OF WEST VIRGINIA.

To all it may concern:

Beit known that I, RUSSELL Horn, a cititroit, county of Wayne, State of Michigan, have' invented certain new and useful Improvements inv Oil-Pumps, of which the ,fol-v lowing is a speciication.

' 'l'he present invention relates to improvements in oil pumps, especially adapted for use with motor vehicles, and will be described `in connection with the accompanying drawings, in which- Figure l is a vertical;v sectional view through a pump constructed in accordance with the present invention. Figs. 2 and 3 are, respectively, transverse `sections through one of the pump barrels and the connecting 'f rod between the pump plungers and driving.

' shaft. Fig. 4.is a plan vview partly in section.

valves. i

tetex-ruig to the drawings, 1 deslgnates the body ot' the pump within which are formedj two barrels or chambers 2, each communicating with supply ducts 3 and discharge ducts' it, said ducts communicating through valve controlled passages withcouplings 5, 6,-for supply'and feed pipes. A

The shaft 7 is mounted in suitable bearings inthe pump body 1, and provided at one end with a worm wheel 8 which engages a suitable worm 9 On a lshaft 10 gearedlto the driving or propelling mechanism ofthe vehicle in the ordinary manner.`

The plungers 11 extend above the body l, and the upper portion oi eaclris externally threaded as at'12 and provided With a longitudinalv slot 13. .Into said slots 13 in the the shait7.' The pin 14 is preferably pro-- vided with van'intermediate section 17 -polygf f onal in cross section, which tits `in a correL spondmgly shaped passage inthe rod 15,'

and said pin and rod are connected by a key or Cotter pin 18.v The connecting rod l15 is guided and held fromv lateral motion toward either plunger 1l, by Walls of the slot in the body l through which it moves and the end et the eccentric pin 16 bears, against a smooth surface termed on said body.' The length of Speccation of LettersiPatent. Application led March 23, 1907. Serial 110.664,142.

Fig. 5 is a detail View of. one of the Patented Nov. 1.7, 190.8..

)usted position by a 'clampingbolt 20 which -is screwed therein and provided at its. inner-l end with a tapering portion 21 adapted to fit the correspondingly tapered seaty formed at the upper ,end of the plunger, -whereby when said pinis screwed into the sleeve and caused to bear against said `seat the upper end of the plunger is held in' 'close engagement with the sleeve 19. Said sleeves 19 are guided by suitable passages in a cap or cove'r 22 detachably connected with vthe pump body 1,V as by screws. f

should be provided-With a stuiiing box at the upperendof the pump barrel, even if the parts-are madewith. the greatest care and accuracy. By the resent invention ,such stuiiing'box is provi ed by a gland 23 screwed into the u per end of the ump barrel, and said glanc is held secure y in pla-ee by the engagement between inwardly ex- 22v-and the ro'ecting head or end of the gland. Pre era ly saidv projecting header end 25 is' made polygonal in cross section, andthe projections 24. are so posltloned that said head is engaged on opposite sides,

whereby it is e'eetually held from turninfr i when the cap 22 is Vin position on the body vThe valves lcontrolling the passage of, oil to .and from the pump barrels have. been speciallyl designed in order to prevent any leakage. A'sshown7 the valves eachv com It has 'been found that pumps fof 'this type the slot 13 is readily varied -by adjizsting'a tendingprojeetions 24 on the cap or cover `prise a ball 26 held against a suitable seat f by a spring 27.A The seat is made in the such as lead, are arranged betweentheinner ends ofthe vvalve seats 'and the.. pum' body, between the .lock nuts 29 and said bo y, and

vbetween the vplugs 30 and the outer ends oit the valveseats. This construction positively prevents any leakage of oil backward around :the balle `2G, or leakage at. any other pointl abontf the valiel The ope `ation ot the pump will be readily understoodironi the foregoing description. [t will be seen that by connecting' the rod 15 with the pump plungers through the pin 14:

which delaeliably connected with said rod i it is poseible to readily remove either pninp plungerl 'from the pump without disconnect ing the other, or if desired the .rod 15 may be removed withoutA aii'eetiug,r either of the plungere., The friction of the worin gear `holde` theeccentric pin 16 against the i'iiaehined face of the body l; but to preventy 1. ln an oil pump, the combination of ai;

plunger having,` a longitudinal slot ariiiiiil ing through its outer end, a :sleeve adjuntable outhe plunger to vary the length oi tlieelot therein, and means extending into said `Slot and adapted to reciprocate the plunger.

ln aii oil )nini the combination olf a i ably formed internally to look the gland.

i a guide for the plunger, and niemans for replunger having'its outer end threaded and provided withV a longitudinal slot, a Sleeve? engaging' the threaded'section ot the plunger 'and :n.justabl'e -loiigitinlifitfally thereof, means for locliii'ig the I@lecveI to the plunger, and means tor reciprocating` the plunger having;

la pin or `alud extendii'ig intoveiaid alot. 3. .In an oil pump, the combination ot a plunger having' ita outer end threaded and provided with a loiigiludinal slot, an iiitcr. nally threaded :sleeve on the threaded :sect ion of the plunger vand adapted to vary thc length ot' said lelet, a clamp or lock pin extending through said sleeve and into ciigagemont with -the plunger to hold the sleeve statio'iiail'y iii any adjusted position, and

means for reciprocating the i'ilunger includ- `ingr a pin or stud extending into said Slot.

relatively stationary body having the puinp into the barrel, a gland Secured within tlin ciprocatingr the plunger. l

(i. In an oil pump, the combination ol a body having' the piunp barrel formed therein, a plunger extending into the barrel, a. `gland havingr a threaded section screwed. into the open end oi? the pump barrel, the portion of Said gland that, projecta from the pump barrel being,- polygonal in cross section, a. hollow cap detachably connected with the body and engaging said projecting portion oi the gland, and in'eans for reciprocating the plunger.

7. In an oil pump, the combination of a relatively stationary body having two pump barrels formed therein, iilnngers extending into said barrelv and nach provided beyond its barrel with a longitudinal slot, a sha-.tt mounted in said body, a i'od connected with the elialt. to be recii'iroeated thereby, a pii'i carried by said rod and extending into the .silots in the piangere, a glandfscrewed into the open end ot each pump barrel, and a hollow rap detaeliabtif' connected. with the body and prin idcd with `faith-.S 'for the plinigers and willi means for engaging said glands. i l

S. ln an oil pump, the combination of a body having two pump barrels and suitable Supply and discharge ducts formed therein,l

plune'crs exteiiffling into said barrels, a shaft, a rod arranged within a slot in the body and haringh one end ccccntrically connected with the shalt. and its other end extending be tween the pluiigers, the walls of said slot preventingl lateral movement-(of the rod t0- ivard either plnnofer and a` pin detaelialily connected with .Said rod and engaging the planners to iaiiiiiinniieate reciprocating ino`- tion thereto.

ln an oil pump, the combination with a body having' a. pumpv barrel and suitable supply and discharge duets formed therein, a. plunger extending into the barrel, and iiicaiirs l'or rcriprocatii'iii;. the plunger, of olieclc value; igoiiti'ollino the flow oit oil to and lroiii the pump barrel and each coin prism; a tubular seat which is screived into a. suitable soi-liet, in the body and provided with opening-a comninnieating;n with ducts in p f #aid body, a ball within said seat, a loelc nut; barrel tormed therein a ilunffer extendine' L 7 t5 ri open end ot the barrel, a guide for the plunl `ger detachably connected with the pump bodyaiid engaging said gland, and means for reeipr'ieatiiig the plunger.

5. In n oil pump, the combination ot a relativel stationary body having the pump lia'ri'elli rined therein, a plungerextending bai-rel, ay gland secured Within the open ei d the barrel, a1 hollow cap detacliably connected with the body and suit tlie combination with' f said body, a, A for holding'Y-tvhe seat in position on the body,

piising u tubular seat, Whiclris screwed into axsuitable `slmket in.` @he body and provided with openings communicating withl ducts in 1 all Within said seat, a lock nut 'a plug closing the outer end fftlie valve seat, a spring .between said plug and ball, and soft I Iietal askets arranged respectively 'between `the va' Ve seat and body, the lock substantially as lmd for the purpose dcscribed.

i In testimony whereof I affix my signa-ture in presence of two Witnesses.

RUSSELL NUFF.

' l Witnesses:

VINCENT LINK,

ALLEN LOOMIS.

nut and body, and the plug and wily@ seal, 11,;

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