公开(公告)号：WO1992021432A1

公开(公告)日：1992-12-10

申请号：PCT/EP1992001292

申请日：1992-06-09

Applicant: SIHI GMBH & CO KG ,  GKSS-FORSCHUNGSZENTRUM GEESTHACHT GMBH ,  NIKUTTA, Karl-Heinz ,  GOSCH, Dietmar ,  ZIMMERMANN, Erwin ,  OHLROGGE, Klaus ,  WIND, Jan ,  PEINEMANN, Klaus-Viktor

Inventor： SIHI GMBH & CO KG ,  GKSS-FORSCHUNGSZENTRUM GEESTHACHT GMBH

IPC: B01D61/36

CPC classification number: B01D61/362 ,  F04C19/004 ,  F04F5/54

Abstract: The auxiliary or working liquid is cleaned by being urged through a pervaporation membrane module (3), then the permeate stream from the membrane module is led through a condenser (4), where the impurities concentrated in the permeate stream precipitate. The stream of retentate and the stream of permeate from the membrane module are then fed back to the compressor (1). The differential pressure of the compressor belonging to the installation is used to operate this circuit.

公开(公告)号：WO1992019353A1

公开(公告)日：1992-11-12

申请号：PCT/EP1992001006

申请日：1992-05-08

Applicant: SIHI GMBH & CO KG ,  ZIMMERMANN, Erwin ,  SIERK, Thorsten

Inventor： SIHI GMBH & CO KG

IPC: B01D19/00

CPC classification number: B01D19/0005 ,  B01D19/0047

Abstract: A process and device for drying and/or degassing a liquid (2), especially oils or alcohols, by spraying (5) the liquid at a pressure lying above the vapour pressure of the liquid and below that of the agent to be removed. The cleaning or drying effect is enhanced in that gas, especially air (3), is introduced into the stream of liquid before it enters the nozzle.

公开(公告)号：WO1988002821A1

公开(公告)日：1988-04-21

申请号：PCT/EP1987000609

申请日：1987-10-16

Applicant: SIHI GMBH & CO KG ,  MÜLLER, Hermann ,  LEHMANN, Wilfried ,  MANN, Ralf

Inventor： SIHI GMBH & CO KG

IPC: F04D29/12

CPC classification number: F04D29/128 ,  F16J15/3404 ,  F16J15/348

Abstract: A centrifugal pump for hot media, in particular hot water, has at least one opening provided with an axial face seal (5) for a shaft that extends outside the pump housing (1, 2). The sealing space (9) is separated from the pump housing (1, 2) by a spacer section (8) with little shaft clearance. To avoid sealing failures caused by collected gas, the sealing space (9) has means (12, 20, 21) for generating fluid circulation within the sealing space (9), intensively applied on the axial face of the axial face seal (5), means (12, 18, 21) for reducing the fluid circulation away from the axial face seal (5), and a large, flow-abated receiving space for separated gas, capable of being vented. The gaseous components are thus reliably separated from the axial face seal (5), removed from the fluid circulation and collected in the upper part of the sealing space (9), so that they are extracted of the fluid circulation and can be discharged.

公开(公告)号：WO1994007031A1

公开(公告)日：1994-03-31

申请号：PCT/EP1993002570

申请日：1993-09-22

Applicant: SIHI GMBH & CO KG ,  MANN, Ralf ,  LEHMANN, Wilfried ,  MÜLLER, Hermann

Inventor： SIHI GMBH & CO KG

IPC: F04D01/06

CPC classification number: F04D9/04 ,  F04D1/066 ,  F04D29/426

Abstract: Sectional-casing-design rotary pump in which the casing sections (8, 9) have a cylindrical outer casing and internal wall sections (12-15) in one piece therewith. The outer casing of at least one casing component (8, 9) consists of an outer continuous casing component (24, 25) and at least two separate inner casing components (19-22) with the appropriate internal wall sections (12-15). The outer and inner casing components are preferably firmly secured together, especially by shrink-fitting.

公开(公告)号：WO1992018775A1

公开(公告)日：1992-10-29

申请号：PCT/EP1992000842

申请日：1992-04-14

Applicant: SIHI GMBH & CO KG ,  STUTE, Manfred

Inventor： SIHI GMBH & CO KG

IPC: F04D09/04

CPC classification number: F04D29/445 ,  F04D5/006 ,  F04D9/04 ,  F04D15/0218

Abstract: The multi-stage rotary pump proposed has a first normally priming rotary-pump stage and subsequent self-priming stages. In order to improve the self-priming capability and waste-escape security of the pump, in particular when fluids are being pumped at temperatures near their boiling point, a liquid reservoir (13) of sufficient size is located between two pump stages, the connection between the reservoir and the preceding stage being located in the geodetic upper section of the reservoir. The delivery-side housing wall (22) of the pump stage located before the reservoir (13) is at the same time the partition which delimits the reservoir (13) on the low-pressure side. This makes it possible to design the pump with a short longitudinal length. Located between the liquid reservoir (13) and the preceding pump stage is a seal (16) which seals the shaft gap.

公开(公告)号：WO1990002880A1

公开(公告)日：1990-03-22

申请号：PCT/EP1989001044

申请日：1989-09-08

Applicant: OTTO TUCHENHAGEN GMBH & CO KG ,  SIHI GMBH & CO KG ,  METTE, Peter ,  LEHMANN, Wilfried ,  LANDOWSKI, Rainer

Inventor： OTTO TUCHENHAGEN GMBH & CO KG ,  SIHI GMBH & CO KG

IPC: F04D13/02

CPC classification number: F04D5/002 ,  F04D13/027 ,  F05B2260/4041

Abstract: A cleanable centrifugal pump without stuffing box, in particular a side channel pump, comprises at least one impeller (5) driven by means of a magnetic, synchronously transmitting rotary coupling arranged inside the impeller (5). The two halves of the coupling are mutually separated by a dividing wall (6) which delimits the space for the fluid to be delivered against the atmosphere and is rigidly and sealingly connected to the pump housing (1). One half of the rotary coupling (7, 12) is mounted in or on the impeller and the dividing wall (6) penetrates the impeller (5) concentrically, serves as a bearing journal for the impeller and, together with the impeller, forms an annular bearing gap (13). The dividiing wall (6) is tubular and statically sealed on both sides of the impeller (5) in the housing of the centrifugal pump (1; 1a; 1b). The annular bearing gap (13) is connected, directly or indirectly, with a region of the suction connection piece (1c) and with a region of the delivery connection piece (1d).

公开(公告)号：WO1983004075A1

公开(公告)日：1983-11-24

申请号：PCT/EP1983000116

申请日：1983-05-03

Applicant: SIHI GmbH & CO KG ,  SEGEBRECHT, Udo ,  DAHMLOS, Christian ,  HOLTHUSEN, Erwin

Inventor： SIHI GmbH & CO KG

IPC: F04C27/00

CPC classification number: F04C27/009

Abstract: A rotary piston compressor, which is preferably a rotary piston vacuum pump has two shafts which are supported at least in a separation wall or in a separation housing arranged between the section chamber and the adjacent pumping chamber partially filled with oil. The sealing is achieved by a slide ring sealing. A pump fitted on the shaft of the rotary piston is used for its lubrication; its discharged side is connected with the chambers of the slide ring sealing.