Pump device and method for at least locally sealing the pump device
A pump device, a local technology, applied in the direction of pumps, rotary piston pumps, pumps with flexible working elements, etc., can solve the problems of the inability to ensure the sealing performance of the pump device, the inability to ensure the sealing performance, and the damage to the pump ring.
Active Publication Date: 2020-10-30
EBM PAPST ST GEORGEN & -
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The problem here is that the axial insertion or movement of the separation chamber pin will also force the pump ring axially, which may damage the pump ring or cause an inconsistent stress ratio inside the pump ring
In this way the tightness cannot be guaranteed, or at least not for the lifetime of the pump unit
Method used
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Embodiment Construction
[0029] In all views, the same reference numerals are used to designate the same technical elements.
[0030] figure 1 A side sectional view of a part of a conventional pump device 100 is shown with a hydraulic housing 101 , a pump ring carrier 103 arranged in the hydraulic housing 101 and an elastic pump ring 102 arranged therebetween. The pump device 100 is not necessarily a prior art, but is merely a subject to be solved by the present invention. During installation, the separation chamber pin 104 is inserted into the pump ring 102 in the axial direction, and is pressed against the pump ring 102 in the axial and radial directions with its axial free end at the same time, so as to exert pressure on the inner wall surface of the hydraulic housing 101, Wherein due to the axial force, the pump ring 102 will inevitably be damaged.
[0031] Figure 2a and Figure 2b A first embodiment variant of a part of the pump device 1 is shown in a side sectional view, the radial directio...
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The invention relates to a pump device for pumping a liquid, comprising a hydraulic housing (2), a pump ring support (5) which is arranged in the hydraulic housing (2), an elastic pump ring (3) whichis arranged between the pump ring support (5) and the hydraulic housing (2) in the radial direction (RR), and a separating chamber pin (4). The pump ring (3) can be pressed in the radial direction (RR) against an inner wall surface of the hydraulic housing (2) by means of the separating chamber pin (4) in order to produce an at least local seal on the hydraulic housing (2), and the hydraulic housing (2) has a radial offset section (6), along which an offset element that is formed on the separating chamber pin (4) or a separate offset element that interacts with the separating chamber pin can be introduced in the axial direction (AR) and thus offsets the separating chamber pin (4) and the pump ring (3) in the radial direction.
Description
technical field [0001] The invention relates to a pump device and to a method for sealing the pump device at least in regions, in particular on an inner wall surface of a hydraulic housing, using a separation chamber pin. Background technique [0002] Various types of pump devices are well known in the art. For example, publication WO2016 / 173800 A1 from the applicant discloses a corresponding pump device for pumping or transporting liquids, having a hydraulic housing, a pump ring carrier and a pump ring, the pump ring is The separation chamber pin of the "part" is offset to seal the pump chambers from each other, or the suction side of the pump from the pressure side. Pump rings are also known in part as "diaphragms" in the industry. During assembly, the separating chamber pin is pressed axially into the elastic pump ring and in the process pushes the pump ring with its free front edge both axially and radially, wherein the radial offset is at the center of the hydraulic h...
Claims
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IPC IPC(8): F01C5/02F04C5/00
CPCF01C5/02F04C5/00F04B43/02
Inventor A·库尔梅G·库纳特H·古德斯-哈梅尼赫M·施泰格D·豪尔
Owner EBM PAPST ST GEORGEN & -