US1460988A - Pump - Google Patents

Description

July 3,. 3.923.

D. H. TI-iGMPSON PUMP i. 1921 5 Sheets-Sheet 1 Filed April Juiy 3, 1923.

D. H. THOMPSON PUMP . 1.921 3 Sheets-Sheet 2 Fi led April July 3, 1923.

D. H. THOMPSON PUMP Z5 Sheets-Sheet (5 Filed April 4, 1921 259M917 Zi 0.2

Wavy/$022.

D HARPER THOMPSON, F LODI, CALIFORNIA.

PUMP.

Application flied April 1921. Serial Ito. 653,270.

Ta on whom it concern:

Be it known that T, DEAN HARPER THOMrsort, a citizen of the United States, and reardent of Lodi, county of San Joa um and State of California, have invente a new and useful Pump, of which the following is a s ecification.

he present invention relates to improve ments in umps and its object is to provide a positive acting, continuously operating, combined suction and pressure pump having a continuous suction and discharge that is economical, simple and substantlally built.

I accomplish this object bymeans of the mechanism illustrated in the accompanying drawing, in which Figure 1 represents a 1ongitudinal vertical section through my pump, Figure 2 a horizontal section through the same, substantially along line 22 of Figure 4, Pi re 3 an inside view of one of two rotary w eels used in my pump, Figure a a transverse vertical section along line 4-4 of Figure 1, Figure 5 a side view of the pump with a cover and a rotating wheel removed, andFigure 6 a perspective view of one of the rotary wheels of my pump.

Referrin to the drawings more art1cularly it wil be seen that the houslng (1) supports in two roller bearings (2) the shaft (3), which is rotated byI means of any su1table power actuating t e pulley (4). The housing consists of a ri id central part (6) rovided with two circu ar parallel faces or anges (7 and two covers (8), the flanges (9) of which are bolted to the clrcular parallel faces or flanges (7) of the housing as shown at (11). Inside of the covers (8) the shaft carries two symmetrical rotary disks or wheels (12), one on either side of the parallel flanged faces of the housing. These two disks or wheels are keyed to the shaft so as to rotate with the same and are firmly pressed against the parallel flanged faces of the housing by means of two large nuts (14) engaging threaded parts (16) of the shaft. Ball-thrust bearings (17) are rovided to reduce the friction between the disks or wheels and the central part of the housing, and packing rings (18) serve to prevent any air or liquid from leaking through between the disks or wheels and the parallel faces of the'housing, springs (19) tending to give a certain elasticity to said packing rings.

The two disks or wheels (12), shown particularly well in Figures 1, 2, 3 and 6, are

of solid cross-section but have, on their inner surfaces, pockets or chambers (23) out into the same, two bounding surfaces (20) of which are semi-circular in outline and concentric with the axis, while the two other bounding surfaces (22) are in radial planes and sloping in cross-section. They are arranged on the shaft in such a manner that their inner faces run parallel and that at all times the semi-circular chamber or pocket in one disk or wheel is op osite the solid portion of the opposite dis or wheel and vice versa and are designed to alternately register with the openings (25) through the parallel flanged faces of the housing which terminate into the suction and discharge openings (26) and (27).

It will be seen that the central part of the housing, which may be called the stator of my pump, provides inside space only above the shaft (3), the lower part consisting of supports only. This inside space is provided with the inlet pipe (26) and the discharge pipe (27), the two pipes being arranged opposite of each other and being separated from each other by a movable partition or plunger (28) extendin longitudinally through the stator and dividing its inside s ace into two compartments (29.) and (31?. This movable partition or p unger (28) is composed of a series of plates (32) lying flat against each other. The two outside plates are solid, while all the inner plates are perforated in such a manner that none of the perforations register with those of the adjoining plates. These perforations serve as carriers of grease admitted between the plates through the grease cup (30) and tend to reduce the friction between the plates by reducing the area of surfaces in contact. These plates, as shown in Figure 4, are held in place by two upper guides (33) and two lower guides (34:) and are capable of longitudinal movement only. Longitudinally they extend from the inside face of one (115k on wheel to the face of the solid portion of the opposite.disk or wheel and, since the distance between the two faces remains constant throughout the rotation, the movable partition or plunger will always maintain a liquid or air-tight connection with the faces of the disks or wheels. Likewise, since the to and bottom surfaces of the movable partition or plunger come in direct contact with the horizontal surfaces of the semicircular chamber or pockets it will be seen that no air or liquid can pass the movable partition or-plunger in either direction at any the disks or whee s.

Having thus described the essential features, elements, and the co-rel-ationstherebetween, like reference characters being utilized to indicate similar features and ele- .or wheel, and as will be observ ments throughout, the operation of the pump is set forth as follows:

Since the movable partition or plunger (28) is of a length equal to the distance between the inner face of the semicircular chamber (23) in one of the disks or wheels (12) and the solid face of the o posite disk ed the radial sides (22) of these chambers present an inclined surface to the ends of the movable.

opposite side, it will be clearly evident that the tendency to create a vacuum between the receding end of the semi-circular chamber and the movable partition or plunger will cause that chamber to become filled with air or liquid through .the openings in the parallel faces (7) of the housing (6) leading to the chamber (29) and the suction pipe (26), while the approaching end of the same semi-circular chamber on the o posite side of the movable partition or p unger will 'empt the chamber of its contents (with WhlC it was filled on the preceding revolu'tion) by forcing it outthrough the openingin the parallel face (7) of the housing (6) into the chamber (31) and the discharge pipe (27). Thus the semi-circular chambers in each disk or wheel will be fillin and emptyiltig simultaneously in each revo ution an as is operation takes place alternately it will be clearly evident that the action of the pump will be continuous both in suction as well as discharge and since this action is positive in nature, the ca acity of the pump as well as the pressure w ich it exerts upon the discharging contents will be contingent only upon the speed at which the pump is. driven or the power exerted in operating.

I claim:

1. In a pump, a housing having a shaft rotatably mounted therein, two wheels haveriod of the rotation of,

'dinally divided into a plurality of ing inwardly facing chambers of semi-circular c'ontour and sloping radial sides keyed to said shaft so that their inner surfaces are arallel, and a partition sup rted in said ousing extending between said two wheels, said partition being longitudinally divided into sheets movable independently of each other, and an inlet and a discharge arranged on o posite sides of said partition.

2. n a pump, a housing havingashaft rotatably mounted therein, two wheels having inwardly facing chambers of semi-circular contour and slopin radial sides keyed to said shaft so that t eir inner surfaces are parallel, and a partition sup rted in said housing extendin between said two wheels, said partition being longitudinally divided into a plurality of sheets movable independently of each other, the two outside sheets being solid, the inside sheets being perforated and an inlet and a discharge arranged on opposite sides of said partition.

3. In a pump, a housing having a shaft rotatably mounted therein, two wheels having inwardly facing chambers of semi-circular contour and sloping radial sides keyed to said shaft so that their inner surfaces are parallel, and a partition supported in saidhousing extending :between said two wheels, said partition being longitudinally divided into a plurality of sheets movable 1ndependently of. each other, the two outside sheets being solid, the inside sheets being perforated, said perforations being adapted to receive and to distribute a lubricant between the several sheets.

4. In a pump, in means for providing a stationary liquid-and air-tight connection between two rotating wheels having rallel. but uneven surfaces, a partition ongitudinally divided into a lurality of sheets movable independently 0 each other.

5. In a pump, in means fog providin a stationary liquidand air-tight connection between tworotati-ng wheels havin parallel, but uneven surfaces, a partition Io sheets movable inde ndently of each other, the two outside s eets being solid, the inside sheets being perforated.

6.. In a pump inmeans for pmvidin a ngitu-' stationary liquidand air-tight connection between two rotating wheels havin parallel, but uneven surfaces, a partition longitw dinally divided" into a plurality of sheets movable independently of each other, the

two outside sheets being solid, the inside sheets being perforated, said perforations being adaptid to receive and todistribute a lubricant weenthe several sheets.

H ARPER THOMPSON.

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