US1881575A - Rotary pump - Google Patents

Description

vOct. 11, 19x32. Q w HERZOG 1,881,575

` ROTARY PUMP Filed Jan. 5. 1931 3 Sheets-Sheet l Ca/c l'f/@C 7 abba/mq Ot. 11, 1932. c. w. HERZOG ROTARY PUMP Filed Jan. 5. 1931 3 Sheets-Sheet 2 In/vanter,

v M l 3 Sheets-Sheet 3 Caff @h/@53% C. W. HERZOG ROTARY PUMP Filed Jan. 5. 1951 you. 11, 1932.

Patented Oct. 11, 1932 PATENT OFFICE CARLy W. HERZOG, F TOLEDO, OHIO ROTARY PUMP Application led January 5, 1931. Serial No. 506,594.

ber, and a partitioning member rotated with the rotary member to form volume changing receiving and ejecting chambers.

The invention may be contained in structures that partake of different forms and ,which may be varied in their details andv still embody the invention. To illustrate a practical application of the invention, I have vim selected a pump that embodies the invention as an exampleof the various structures, and the details of such structures, that contain the invention and shall describe the selected structure hereinafter, it being understood g5 that variations maybe made and that certain features of my invention may be used to advantage Without a corresponding use of other features of the invention, and'without departing from the spirit of the invention, The particular structure selected is shown 1n the accompanying drawings.'

Fig. 1 is a perspective viev;7 of the pump Without the cover plate. Fig. 2 is an end view ofthe pump. Fig. 3 is a view of a section of a part of the pump taken on the plane of the line 3 3 indicated in Fig. 2. Fig. 4 illustrates'a'vievvof a section when the partitioning member is located in the position shown in Fig. 1. Fig. 5 `is a View o of a section taken on the plane of the line 5 5 indicated in Fig. 4. Fig. 6 is a view of a sectionof the pump, the pump being provided vvith ports'that differ from the ports shown in connectionA With the pump illustrated in Figs. `1 to 5. Fig. 7 illustrates a' view of a section through the intake port Where the pump is used for pumping Huid in which the pump is located, or submerged. Fig. 8 is a view of a section of the intake port where the fluid lis drawn from a container.

Fig. 9 illustrates a view of a section through the outlet port of the outlet pump shown 1n Fig. 6. Fig. l0 illustrates interconnecting outlet passageways of the pump that are also indicated in Figs. 2, 3, and 5.

The pump shown in Fig. 1 has a cylindrical shell 1 in which is located a rotary member 2. Preferably, the rotary member is provided With a cylindrical part 3 which sub-. stantially fits the shell 1. The rotary member 2 may be driven by means of the shaft 4 which may be operated by a suitable motor.

The end edge of the shell 1 is inclined to the axis of the rotary member and may be located in, or parallel to, the plane that extends tangential to the conical surface 8 of the rotary member 2. A rotatable plate 9 has an inner surface 10 that is so located as to make contact along the line of the conical surface 8 of the rotary member 2 that eX- 70 tends from the apex of the conical surface 8 to the edge of the conical surface. In the form of construction shown, the rotatable plate 9 is rotatably supported to maintain its tangential relation and to maintain the line u of contact in the same position with reference to the shell 1, by means of the cover plate 11 that may be secured, toA the inclined edge 12 of the hell 1 by means of suitable screw bolts 13. When the plates are secured 80 in position, a chamber 16 is formed Within the shell and between the conical surface 8 of the rotary member 2 and the plane surface 10 of the rotatable plate 9, into which the iuid operated upon is drawn and expressed.

In order to subject the fluid to pressure and move it through the chamber 16, a partitioning member 17 is rotated in the chamber 16. The member 17 is connected to the rotary member 2 to produce rotation of the 9c partitioning member 17 and at the same time to divide the chamber 16 into two chambers 18 and 19. The chambers 18. and 19` alternately operate in the rotation of the rotary member to receive or draw the fluid into the 95 chamber 16 and force the fluid from the chamber 16.

Where the partitioning member moves angularly relative to the rotatable plate, as in the form of construction shown in the draw- 100 ings, the partitioning member 17 has an edge portion 20 that lits in the channel 21 of the plate 9 and to allow for the angular movement of the partitioning member 17 relative to the plate 9, the edge ortion 2O is, preferably, formed semi-cylint rical and the recess 21 is likewise formed Asubstantially semicylindrical.

The partitioning member 17 may be con.

nected to the rotary member 2 to rotate the partitioning member about the axis of the cone by location of a portion of the parti is, preferably,-forined semi-circular and the bottom of the slot 25 is also formed to have a circular bottom 26 having its center at the apex of the conical surface 8. As the rotary member 2 is rotated, tlieinclined cover plate 11 niaintaiiisthe rotary plate 9 in a tangential relation alongk the 'constant line of contact and as the partitioning member 17 moves, relative to the inclinedrotatabl'e plate 9, its edge 20 swings through the angle of inclination of the rotative plate 9 to the axis of tli'e cone as itl passes'from positions at right angles to the axis to positions extendline of contact along the cone.l

The fluid is directed into the shell at va point on one or the other sides 'of the plane of the tangential line of contact and the axis of the conical surface, depending on the direcing through, or,` parallel to, the tangentialr tion of rotation, and is forced out of the shell from a point on the opposite side of the said` plane. Thus, in the form of construction shown, the iuid is admitted on a leading side of the tangential line of contact betweent the rotary member 2 and the rotatable plate9 that extends from the edge 'of the cone to its apex, while the fluid is forced from the shell on the following siderof the tangential line of contact. lVhere the pump is submerged 'in aliquid or is located in a gas, such as in air, a plurality of openings 30 may be formed in the wall of the'sliell 1 above the edge of theconical surface 8 and, as the partitioning member 17 is rotated, the chamber on the side of lthe partitioning member that the openingsl are located on, is enlarged while the other chamber is decreasing inv volume and, consequently, the partitioning member forces liquid or gas or air through the port 31, preferably formed near the following side of the tangential line of contact.

The port k31 is formed in the cover plate '11 and a suitable connection may be made therewith. The l'outlet-port l31 may beconnected with the chamber 16 by means `of a channel 32, formed in the cover plate 11, and the openings 34 formed in the rotatable plate 9. The channel 32 extends arcuately about the center of the plate 9 and is located on one side of the tangential line of contact and its extension across the plate 9, and the openings 34 are located with respect to the apex of the cone so as to move over the arcuate slot 32 to allow the fluid to pass through the recess 32 and the outlet 31 as either of thev chambers 18 or 19, between the partitioning member and the tangential line of contact, reduces its volume. l

When the edge portion 22 of the edge 20, of the partitioning member, passes through the tangential line' of contact, the portion of the chamber 18, between the partitioning plate 17 and the line of contact, is expanded ,and receives air through the inlets 30, while on the other hand the fluid -is being forced from the chamber 19 by reaand outlet ports located in close proximity to the tangential line of contact between the rotary'member 2 and the rotatable plate 9.- As shown in Figs. 6 to 9, the inlety and outlet ports may be provided by forming passageways that extend diagonally, to points located in proximity to the tangential line of contact. Preferably, the passageways are made triangular in form so as to conform to the space produced at these points between the conical surface 8 Vof the rotary member 2 and the plane surface 10 of the rotatable plate 9. The outer ends of the passageways may terminate in suitable bosses for connection with a pipe that -may communicate with suitable containers, if desired. f As shown in the figures, the passageways 35 and 36 are triangular in form, or communicate with the triangular opening 37 located in proximity to the tangential line of contact between the rotary member 2 and the plate 9. If desired, the passageway 35, that forms the inlet passageway of the pump, may connect with an opening formed in the boss 38 which may be threaded, as at 39, for connection with a suitable reservoir from which the fluid is to be drawn. Likewise, the outlet passageway 36 may terminate in a ta-y with a suitable pipe to receive the Huid from the pump.

I claim: In a pump, a cylindrical shell, a cylindri- .'5 cal member having a conical end part located in the cylindrical shell, the axis of the cylindrical member and the conical art coinciding with the axis of the cylindrical shell, a circular plate located tangentially tothe 10 conical part of the cylindrical member and having a groove, the groove having a substantially semi-cylindrical surface, a semicircular partitionin member extending diametrically across t e shell, its diametrical edge portion having substantially a semicylindrical surface and adapted to fit the groove of the plate and move angularly within the groove of the said plate, the cylindrical member having a slot extending 3 through the apex of the conical part of the cylindrical member and for receiving the semicircular partitioning member in the channel, the said plate and shell having an outlet port and means for admitting entrance of air into the interior of the shell at any one of a plurality of points extending substantially over 180 degrees beginning at the point of intersection of the said tangential line with the base of the conical part of the cylindrical member, means for rotating the cylindrical member, and a closure plate for closing the cylindrical shell, the bottom of the slot of the cylindrical member operating to hold the circular plate against the closure plate, and means for rotating the cylindrical member.

In witness whereof I have hereunto signed V my name to this specification.

o CARL W. HERZOG.`

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