# US 5,344,286 A · Centrifugal pump housing

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- Number: US 5,344,286 A
- Document ID: US5344286A
- Status: Granted
- Kind: A
- Application number: 07/573,036
- Filed: 1990-08-24
- Granted: 1994-09-06
- Earliest claimed: 1988-02-27
- Assignees: KSB Aktiengesellschaft
- Inventors: Horst Schafer; Gunter Beiss
- Web page: https://patentgrep.com/patent/US5344286A

## CPC

- F04D 29/426: {especially adapted for liquid pumps}
- F04D 29/605: {specially adapted for liquid pumps}
- F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02)

## Abstract

The invention relates to a longitudinally divided housing (1) of a flow machine. The lower part (3) of the housing (1) is provided with facets (10-13) in the region of the flange segment (4) and on the pump legs (8,9). The facets (10-13), which are located in planes intersecting the shaft axis and perpendicular thereto, serve as abutments upon attachment.

## Claims

### Claim 1

A centrifugal pump comprising a housing; and a shaft rotatable in said housing about a predetermined axis, said housing being divided parallel to said axis and including an upper part and a lower part, said parts including flange segments and said lower part further including suction and pressure nozzles and legs serving for installation, said lower part further including facets which serve as abutments upon attachment of additional components and include facets at the respective flange segment and facets at said legs, said facets being located in planes which intersect and are perpendicular to said axis and said legs being disposed opposite one another in the direction of said axis and being provided with a force-transmitting and torque-transmitting connection.

### Claim 2 (depends on 1)

The pump of claim 1, wherein said facets include facets on said legs.

### Claim 3 (depends on 1)

The pump of claim 1, wherein said facets include at least one facet on at least one of said nozzles.

### Claim 4 (depends on 1)

The pump of claim 1, wherein said facets include pairs of facets and the facets of at least one of said pairs are disposed opposite one another.

### Claim 5 (depends on 1)

The pump of claim 1, wherein the facets at the flange section of said lower part include masses of material.

### Claim 6 (depends on 1)

The pump of claim 1, wherein said legs are connected to one another by at least one insert.

### Claim 7 (depends on 1)

The pump of claim 1, wherein said legs are connected to one another by at least one adjusting element.

### Claim 8 (depends on 1)

The pump of claim 1, wherein said legs have openings for tie rods.

### Claim 9 (depends on 1)

The pump of claim 1, wherein said facets have fastening means.