US1609364A - Rotary pump - Google Patents

Description

Dec. 7 1926.

J.. KLINGE ROTARY PUMP Filed August 11, 1924 2 sheets-sheet 1 j@ w/V 3 9, n 0 .07 Q w l S .t e e h s 2 4 2 9 1 EPL GUl NP@ .I s LMu KAMb .MA JRd e l .1 F

Dec. 7 1926.

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` Patented Dec. -7, 1926.

STAT S KLINGE, OF DUBUQUE, IOWA, ASSGNO'R TO SCHMID MANUFACTURD'G C0., 0F DUBUQUE, IOWA, A COPARTNERSHIP COMPOSED F B. C. SGHMID AND F. WSCHMID. y

(ROTARY PUMP.

Application led August 11,

Thisl invention relates to a rotary force Pump' It 1s an ob]ect of th1s invention to provide a novel rotary force pump comprising a plurality of units having a common inlet and exhaust with branches leading to the different units and means for controlling the inletv and exhaust of each unit in order that one Vith these and other objects in view' which will become more apparent in the fol- Y lowing description and disclosures, this invention comprises the novel structure and combinations hereinafter described and more particularly pointed out and defined in the appended claims.

vIn the accompanying drawings which illustrate a preferred embodiment of this invention and in which similar reference numerals referto similar features in the different views:

Figure 1 is a longitudinal sectional view through the rotary pump involving this invention. n.

Figure 2 is an enlarged .sectional view upon the lineA 2 2 of Figure 1.

Figure 3 is a top plan view of the pump. Figure 4 is a fragmentary sectional view through thedrivingshaft rotors and bearings.

Figure 5 is a sectional viewl substantially upon the line 5-5 of-Figure 1.

AFigures 6, 7 and 8 are views similar toFig-' ure 5 but showing the rotor in different positions, v

Referring now to the drawings there is shown a housing comprising two sections 1 and 2 secured together. with a partition 3 between Said sections. The outer end walls ofthe two' sections are provided with aligned bearings 4 and 5 for journalling a shaft 6. Each housing section has a cylindrical chamber 7 concentric.with the shaft Y6. Above y each` chamberthere is an extension 7 'embodying a central slideway 8, and lateral inlet and outlet chambers9 and 10. This construction'of section 2 is clearly shown in` Figures 5 to 8;the construction of section 1 being identical.,

. A cover V`11 ;1s secured over the top-of the` housing, and an inlet or luidsupply pipe' 4having I branches 13a and 13b (Figure 3) which ex-` walls of the slideway 8. The valve proyided with depending side flanges 21 that close these ports, and an oblique passage 22 that is adapted to register in a certain posi- 1924. Serial N0. 731,270.

12,- v(Fig-ure 3) having a forked end comprising the branches 12 and l2b which extend through the cover and respectively coinv municate with the intake passages 9 fur-I nishes the means for conveying the fluid to the pump sections. An exhaust pipe 13 a forked endv comprising the tend through the cover and com unicate with-the exhaust passages 10 furnis es the means for conducting the fluid from thev pump.

Eccentrics 14 are` secured upon the shaft 6, one eccentric is located in the chamber of each housing section; A rotor 15 is mounted upon cach eccentric. Each rotor has an upwardly extending division plate 16 that f is provided with a cylindrical head 17 that fits 1n a cylindricalbearing formed in the lower surface of a slide valve 18 which re-4 ciprocates in the slideway 8. The d iyision plate 16 and slide valve 18 serve to divide veach chamber into an intake compartment and an -exhaust compartment.v

Each sliding valve 18 also controls an` inlet port 19 leading from theinlet passage 9, and an exhaust port 20 lea'dinginto the exhaust passage 10. These ports are in the 18 is tion withl the exhaust port as shown in Figure 7. l

In referring to Figure 1, .itlwill benoted that when one eccentric 14 is at the bottom of its stroke, the other eccentric is at the upper limits of its throw, consequently the two pumpunits act alternately. In' referrin to Figures 5 to-8 it willrbe observed that when the intake port 19 is open the extoris at its lowest point as shown infFigure 7. When the rotor travels'upwadly, the'l inlet port` will be 1gradually opened and the exhaust port will gradually be closed.

In Figure 4, there is illustrated a novel method of lubricating such a pump. In referring "to Asaid figure it will be noted that the shaft 6 has. a central-duct 23 which exy i tends from its outer end into the farther.'

unit, ducts 24 exten-d from the duct l23 through the eccentrics to the inner peripheriesof the rotors 15. A grease cup or oil can 25 is secured in the outer end of theduct 23 for supplying oil tothe rotors. Cenf trifugal force will cause thefv oil totravel through the ducts 24 as is apparent. Y

It will Abe appreciated that this cutoff -prevents the rotor of one unit when in downward action from robbing 'the other unit in either extracting the liquid therefrom or dissipating the vacuum or suction. f

I am aware that many changes may be made, and numerous details of construction may be varied through -a Wide range, without departing` from the principles of this invention, and I therefore do not purpose limiting the patent granted hereon other- IWise than necessitated by the prior art.

I claim as my invention:

0 l. In a rotary pump, .a housing comprismg a pair of separable sections, an eccentrlc rotor 1n each sectlon, ,anv extension on each section embodying a central slideway and lateral inlet and outlet chambers, a division plate connected to the eccentric of each'rotor, a right line' sliding valve in each central slideway pivotedl to its division plate and controlling ports communicating with said inlet and exit chambers, and common inlet and outlet pipes for said chambers.

2. In a rotary p`ump, a housing comprising a pair of separable sections, an eccentric rotor in each section, an extension on veach sectlon embo'dylng a central slideway andv lateral inlet and outlet chambers, a division plate connected to the eccentric of each rotor, a right line sliding valve in each central slideway pivoted to its division plate and tion of said ports and of said valve being so related that the outlet port is open except*- at the very end of the exhaust cycle-.

4. In a rotary ump provided with a slideway, ain eccentrlcrotor, a right line slide valve'in said slideway connected to said rotor and having, formed through'it a passage to serve for Afluid delivery, inlet and outlet ports being formed in the Walls of Said slideway, the passage in said valve and theout let port being so positioned and inter-related that said outlet port is openeXcept at the very end of the cycle of the rotor. v

5. In a rotary pump provided with a slideway having inlet and outlet ports in the walls thereof, an eccentric rotor, a right line slide valve adapted to reciprocate in said slideway and having a passage therethrough to serve for fluid delivery, and a division plate'` connecting said rotor and said slide valve, said valve, 'passage and ports'being so positioned and inter-related that at the .end of the cycle of the rotor the' inlet port is wide open and the outlet port entirely closed.

In testimony whereof I have hereunto subscribed my name. Y

- JOHN KLINGE.

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