DE102013019381A1 - High-displacement pump - Google Patents

Abstract

Rotor made of shaft and rigid rounded blades (1a) with running surfaces (1b), in relation to the cylinder radius

Description

Definition of a positive displacement pump (Source: Wikipedia)

In displacement pumps, the medium is conveyed through self-contained volumes, prevention of backflow is achieved by valves or flaps, other media or their shape by gravity. Apart from design-related leaks, the medium can not flow through the pump in the reverse direction, even at a standstill. Positive displacement pumps are generally self-priming, which means that pumps designed for liquids can also convey gases for a generally limited period of time and can thus build up a suction pressure that is sufficient for suction.

High-displacement pump

The invention relates to a high performance positive displacement pump for universal use, high volume, high speed and high pressure liquid media. In practice, this type of pump is not known. A derivative of similar pumps based on this technology can therefore not be made.

The absolute novelty with this pump is a partial cylinder with rotor, which sucks in the medium, separates and presses in the direction of outlet. Separated from the inlet.

The rotor consists of rotor shaft (main shaft) ( 1 ) and rigid integrated rounded rotor blades ( 1a ) with treads ( 1b ). The radius of such a rotor blade results from the radius ( 4 ) of the pump cylinder. At the end of each rotor blade ( 1a ) are swivel joints ( 2 ) fitted with wings ( 3 ) with plating ( 3a ) are connected. Their radii also result from the cylinder radius ( 4 ).

These wings ( 3 ) have opposite the hinge ( 2 ), which you with the rotor blade ( 1a ), each having a bearing shaft with wing control bearing ( 5 ) (Cones). This wing control bearing ( 5 ) accesses a control ring ( 6 ), laterally integrated on the housing, one whose center ( 6a ) outside the shaft center ( 7 ) is located.

Upon rotation of the rotor, the movable wings ( 3 ) continuously, radially, since its wings ( 3 ) with the swivel joints ( 2 ) of the rotor blades ( 1a ), from the cylinder ( 8th ) in the direction of the shaft center ( 7 ) and back. These movements create an effect similar to a piston pump. Aspiration ( 9 ) - Eject ( 10 ).

The reflux of the medium is determined by the position of the lower wing ( 11 ) and by separating the medium in a closed chamber ( 12 ) after the suction action ( 9 ).

The pump displaces approximately 85-90% of the cylinder volume with each revolution. According to the required rotor material dimensioning.

The rotor with its blades, as well as the wings, have no additional seals. They run, contactless to the respective surfaces. The small gap ( 13 ) at the theoretical contact surfaces eliminates the friction of the rotor with the lateral housing and cylinder, as well as the wings ( 3 ) with the treads ( 1b ). The rotor hangs as it were free on its shaft in the pump housing.

The return of the medium in the area of the control ring ( 6 ) and wings ( 3 ) is by means of free-running stoppers ( 14 ) automatically placed. A backflow of the medium can not arise through this gap during rotation, because it forms a viscous film in between, which is pulled along slower. The rotor is normal, industry standard, stored and sealed as there is pressure equalization in the center of the rotor.

The limits of this pump are material limits or reason.

Mode of action and benefits

By presenting the enclosed drawing we can see that the rotor of the pump is clockwise in this case. Inlet of the liquid medium, left, outlet of the liquid medium, right. For the sake of simplicity, I refer to the medium as water. It refers to all liquids.

In this drawing, we see that the lowermost wing rests against the cylinder, in this case with a tolerance of 1 mm, to avoid direct contact with the cylinder. This tolerance is also the side of the rotor to the housing, and also between the wings and the treads ( 1b ).

The lower wing ( 11 ) is in "closed position" and prevents backflow of water to the inlet. The wings, which are marked with "09", move in the direction of the rotor center ( 7 ). This movement is referred to as "suction" in the rotating rotor, and by the control ring ( 6 ), whose center is offset to the rotor center, caused.

On the inlet side, we see that two wings are sucking. The upper wing, however, is quite "open", the chamber ( 12 ) filled with water, and completely separated from the other chambers by the cylinder wall.

The two wings of the outlet side are controlled by the rotation of the rotor by means of a control ring ( 6 ) and cause the discharge of the water definitely to the outlet, since the return to the inlet through the bottom wing ( 11 ) is blocked. As mentioned at the beginning.

Due to the strong leverage created by the guidance of the wings, connected to the wing control bearing ( 5 ), in the control ring ( 6 ), exceptionally high pressure combined with high volume can be achieved. Example: Pump: Diameter: 1,000 mm Length Cyl .: 1,000 mm Rotation speed: 400 rpm Liter / sec .: 3,754.00

The deduction of the rotor mass is already taken into account here

A rational comparison with other pumps is not possible. Neither with a conventional piston pump, nor with a centrifugal or impeller pump. It is a new technology!

application areas

The applications are universal. Whether as a drive, universal fluid pump, as a tandem system for pipelines, etc. A "push-pull" tandem system allows liquids to be transported over long distances and without height differences without line pressure.

market

The pump market is one of the largest markets ever. Our whole system depends on pumps. The unique technology combined with high performance and universal application will determine the market price. Another interesting perspective.

Production and costs

Manufacturing this novel technology is relatively easy with today's advanced manufacturing techniques. The same applies to the costs, because apart from the rotor, everything can be obtained from the bearing seal and drive catalogs of various manufacturers.

The rotor and wings are cast in one piece and CNC machined.

LIST OF REFERENCE NUMBERS

1

rotor shaft

1a

rotor blades

1b

Rotor surfaces

2

swivel

3

wing

3a

Flügelplattierung

4

cylinder radius

5

Wing control storage

6

control ring

6a

Control ring center

7

Rotor shaft, shaft center

8th

cylindrical surface

9

suction action

10

emissions action

11

Sash position return flow stop

12

Separated medium in closed chamber

13

Gap between the rotating surfaces

14

Return Stopper

Claims (9)

Rotor made of shaft and rigid rounded blades ( 1a ) with treads ( 1b ), in relation to the cylinder radius Wing swivel joints ( 2 ) in connection with wings ( 3 ) with the rotor blades ( 1a ) Movable wings ( 3 ) in relation to the cylinder radius ( 8th ), connected to the tips of the rigid rotor blades by rotary joints ( 2 ) System cylinder radii ( 8th ) as a basis for rotor blades ( 1a ) and wings ( 3 ) Wing control bearing ( 5 ) in conjunction with control ring ( 6 ) Control ring ( 6 ) in conjunction with wing control Stopper to prevent fluid return ( 14 ) Pump housing with inlet and outlet in conjunction with the rotor function Scheme: rotor system in total

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